JP4499700B2 - Air conditioning system and building construction method - Google Patents

Description

  The present invention relates to a building air conditioning system that uses a support pile embedded in the ground, and a building construction method that uses a support pile to build a building that includes the air conditioning system.

  Generally, when paddy fields, valleys, seasides, etc. are reclaimed, the land becomes a relatively soft landfill. For this reason, if a building such as a house is built immediately, there is a risk of land subsidence. For this reason, it is necessary to wait for a considerable period of time until land subsidence is settled before building a house after building land. In addition, it is difficult to build a building in a place where the ground is originally soft rather than a landfill.

Therefore, conventionally, when a building is built on a relatively soft ground, reinforcing piles are buried, and the building is integrally built on these reinforcing piles to stabilize the building. As a method for embedding such a reinforcing pile, for example, a configuration described in Japanese Patent Application Laid-Open No. 11-209977 (Patent Document 1) is known.
The one described in Japanese Patent Application Laid-Open No. 11-209777 has an excavating blade spirally provided on the outer peripheral surface of a substantially cylindrical pile, and has a protrusion that detachably engages with a pile construction jig at the base end. Use reinforced piles. And the structure which rotates the pile construction jig of the state which a reinforcement pile connects is made to embed a reinforcement pile in the ground is taken.
However, for example, when there are tree roots and gravel in the ground, the excavation blades of the reinforcing pile abut against the tree roots and gravel. As a result, there is a possibility that the reinforcing pile cannot be buried to a predetermined depth, for example, the rotational load becomes large due to an increase in frictional force or the excavation blade is damaged and cannot be excavated well.
Therefore, for example, as described in Japanese Utility Model Laid-Open No. 1-69835 (Patent Document 2) and the like, after a drill hole is drilled at a predetermined position on the ground using an auger machine, a pile is buried in the drill hole. It is taken. However, the number of processes is large and the time required to bury a plurality of piles becomes long, and the construction period cannot be shortened.
Further, as described in Japanese Patent Application Laid-Open No. 8-284165 (Patent Document 3), a socket provided with excavation blades spirally is attached to the tip of a pile to be buried, and the socket is rotated together with the pile. The structure which embeds a pile while excavating by is taken. However, even the one described in JP-A-8-284165 cannot satisfactorily embed a pile to a predetermined depth when there are tree roots or gravel in the ground.
Furthermore, as described in Japanese Patent No. 2893443 (Patent Document 4), the tip of the steel pipe is formed in a spindle shape, and a plurality of blades twisted in the rotation direction of the steel pipe are provided at regular intervals on this peripheral side surface. A construction for burying a pile is known. However, even the one described in Japanese Patent No. 2893443 cannot satisfactorily embed a pile to a predetermined depth when there are tree roots or gravel in the ground. In addition, due to friction with the ground, the ground may not be reached and sufficient supporting force may not be obtained.

On the other hand, a configuration is known in which piles are used for air conditioning, radiant cooling and heating, hot water supply, and the like using underground heat (see, for example, Patent Document 5).
The thing of this patent document 5 arrange | positions the piping for heat exchange in which at least one part through which heat media, such as air, distribute | circulate, is formed in an existing pile. A filler is filled between the existing pile and the heat exchange pipe. And the structure which circulates a heat medium in piping by the drive of a circulation pump, and utilizes the heat of underground efficiently by the heat medium which circulated and heat-exchanged with the underground is taken.
However, when the configuration described in Patent Document 5 is used for air conditioning of a building, it is necessary to bury an existing pile separately and arrange a pipe for heat exchange, for the use of underground heat. A great deal of construction work is required. It is also conceivable to use the configuration described in Patent Document 5 for a reinforcing pile that forms the foundation of a building. However, in such a case, it is necessary to provide an opening in a part of the reinforcement pile after exposing the reinforcement pile, and to arrange a heat exchange pipe. If the opening is provided in a part of the reinforcing pile, the foundation strength is lowered, and the building itself may be adversely affected.

JP-A-11-209977 (right column on page 2-right column on page 3) Japanese Utility Model Publication No. 1-69835 (FIGS. 4 and 5) JP-A-8-284165 (right column on page 2-right column on page 3) Japanese Patent No. 2893443 (page 2, left column-page 3, left column, Fig. 1) Japanese Unexamined Patent Publication No. 2004-177013 (page 3 to page 4, FIG. 2)

  As described above, it is difficult to easily use it as an air conditioner for a building by using a pile constituting the foundation of the building while securing a sufficient supporting force as the foundation of the building.

  In view of the above problems, an object of the present invention is to provide an air conditioning system that is easy to construct with a simple configuration and that is good for an environment in which geothermal heat can be efficiently used for air conditioning of a building, and a building construction method. And

The air-conditioning system according to the present invention is an internal space formed by being partitioned from the outside by using a support pile embedded in the ground and integrally connected to the building to support the building. An air conditioning system for performing air conditioning, wherein an indoor air inlet that sucks air in the internal space, an indoor air outlet that discharges air into the internal space, an outdoor air inlet that sucks air from the outside, and an outside A housing having an outdoor exhaust port that discharges air to the housing, an intake operation that is disposed in the housing and that sucks air through the indoor air intake port and exhausts it through the outdoor air exhaust port, and the outdoor air intake port An air blower having a blower that performs at least one of the air blowing operations that are sucked in and exhausted through the indoor exhaust port, and the tip portion is closed and the axial direction is substantially vertical in the ground Steel embedded along the direction A plurality of hollow support piles made of steel, one end of which is connected to the outdoor air intake port of the blower, and the upper portions of the plurality of embedded support piles in the vertical direction are connected to each other and connected to each other A pipe and an embedded upper end of the support pile are inserted into the inside, one axial end opens near the lower end of the support pile, and the other axial end is external to the upper end of the support pile. A flexible inner pipe that extends and opens, and one end of which is connected to the outdoor exhaust port of the blower and is connected to the other end of the inner pipe that extends from the upper end of the support pile. And a second main pipe connected in communication with each other.
In this invention, a plurality of hollow support piles made of steel pipe with closed end portions are buried in the ground so that the axial direction is substantially along the vertical direction. The upper portions of the plurality of buried support piles in the vertical direction are connected to and communicated with a first main pipe that is connected to and connected to an outdoor air inlet that sucks air from the outside of the blower by driving the blower. Also, from the upper ends of the buried support piles, one end in the axial direction opens near the lower end of the hollow support pile, and the other end in the axial direction extends from the upper end of the support pile to the outside. In this state, flexible inner tubes are respectively fitted and arranged. The other end part extended from the upper end part of the support pile in these inner pipes is connected and connected with the 2nd main pipe connected and connected to the outdoor exhaust port which discharges | emits air to the exterior of an air blower, respectively.
In this way, in order to obtain a predetermined support strength of the building, the support pile is embedded to a relatively deep position in the ground, for example, a deep position of 3 m or more from the ground surface. Since the underground temperature is stable at the lower end in the vertical direction, air in the lower end of the support pile is buried by embedding a support pile that is made of a hollow steel pipe and closed so that earth and sand do not flow inside when buried. The heat exchange with the underground can be satisfactorily obtained through the support pile made of steel pipe having high heat conduction efficiency with the underground. For this reason, the air inside the support pile that has been heat-exchanged with the ground is piped before the building is built after the support pile is buried, and the blower of the blower that is connected is driven. The air in the space and the air in the support pile are circulated, and the air in the support pile can be directly blown into the internal space of the building supported by the support pile so that it can be used for air conditioning. In addition, since the support pile is made of steel pipe, even if condensation occurs due to air circulation between the support pile and the internal space of the building, generation of mold etc. is suppressed, so it can be directly circulated. Good air conditioning can be easily obtained with a simple configuration. In addition, a concrete foundation is installed on the upper end of a support pile that is connected to the building after piping with the blower, for example, according to a predetermined strength design for supporting the building, and the building is built on this concrete foundation. By doing so, it is possible to obtain reliable support of the building and good air conditioning by simple construction that is integrally connected to the support pile. In addition, as a steel pipe, not only iron type but stainless steel etc. can be used. In particular, it is preferable to use a steel pipe having high strength and corrosion resistance, such as stainless steel.

And in this invention, it is an air-conditioning system of Claim 1, Comprising: The said support pile is the tubular body body part by which the inner peripheral side was substantially obstruct | occluded and the outer peripheral surface of this body part. Pile construction jig with steel plate excavation blades integrally joined in a state where the plane is inclined obliquely intersecting the axial direction of the trunk section, and the axial direction of the trunk section of the pile construction jig A tubular pipe pile made of steel pipe connected to one end of the pipe substantially coaxially, and one axial end of the pipe pile is connected substantially coaxially to the other axial end of the pipe pile, and the other axial end is A tubular connecting pipe part made of steel pipe that is substantially closed and has a through-hole through which the inner pipe is inserted is opened on the peripheral surface. The inner peripheral surface communicates with the peripheral surface of the connecting pipe part and projects in the circumferential direction. It is preferable to have a configuration including a connection portion including a joint portion to which the first main pipe is connected.
In this invention, the cylindrical pipe pile made of steel pipe is closed at one end in the axial direction so that the inner circumference side is substantially closed, that is, the earth and sand do not enter the inside when embedding the support pile. A pile construction jig that integrally joins steel plate excavating blades with a plane inclined obliquely intersecting the axial direction of the fuselage part on the outer peripheral surface of the steel pipe fuselage part is connected substantially coaxially. The Furthermore, at the other end in the axial direction of the tubular pipe pile made of steel pipe, the other end in the axial direction is substantially closed, and a tubular shape made of steel pipe opens in the peripheral surface through which the inner pipe is inserted. An inner peripheral surface communicates with a joint portion to which the first main pipe is connected to the peripheral surface of the connecting pipe portion, and a lower connecting portion protruding in the circumferential direction is connected substantially coaxially.
In this way, pipe piles provided with pile construction jigs at one end to embed support piles in the ground, for example, pipe piles sequentially until the pile construction jigs reach the ground and a predetermined support force is obtained Since it is embedded while being connected, a connection portion is provided at the upper end connected to the building, and a support pile that divides a hollow portion through which air used for air conditioning is exchanged with the ground is configured. Support force as a support pile for supporting a building can be secured. Furthermore, after burying the pipe pile until a predetermined supporting force is obtained, the pile construction jig is closed by simply connecting the connection pipe portion of the connection portion having a joint portion and a through hole to the steel pipe. The air layer can be partitioned and formed in the support pile for circulating air, and the inner pipe for circulating air used for air conditioning and the connection with the first main pipe and the second main pipe are easy. Therefore, reliable building support and good air conditioning can be easily obtained.
Even if the through hole is formed to be slightly larger so that the inner tube can be easily inserted, the inner tube can be separated from the inner tube by closing the gap with, for example, a sealing agent after the inner tube is inserted through the through hole. It is possible to prevent earth and sand from flowing into the support pile and depositing in the support pile, and to secure a volume in the support pile for good air conditioning.

Moreover, in this invention, it is an air-conditioning system of Claim 1 or Claim 2, Comprising: A said 1st main pipe | tube is connected to the said some embedded support pile, and said 2nd main pipe | tube is said inside It is preferable that the concrete foundation on which the building is constructed is integrally provided at the upper end portion after being connected to the pipe.
In this invention, after connecting the first main pipe to a plurality of embedded support piles and connecting the second main pipe to the inner pipe fitted in the support pile, a building is constructed at the upper end of the support pile. The concrete foundation is integrated.
By this, after burying the support pile, after connecting the first main pipe and connecting the second main pipe to the upper end of the support pile exposed to the ground surface for burial work In order to integrally connect with the building, a concrete foundation is placed on the upper end of the exposed support pile to integrate it, that is, after the support pile is buried, before a concrete foundation that is normally implemented is placed. In addition, since the piping for air conditioning is provided on the exposed support pile, it is possible to easily obtain a configuration capable of obtaining sufficient support force for the building and using the support pile for supporting the building for air conditioning.

Furthermore, in this invention, it is an air-conditioning system in any one of Claim 1 thru | or 3, Comprising: Let the said air blower be set as the structure provided with the heater which heats the air ventilated with the said air blower. preferable.
In this invention, the heater which heats the air ventilated with the air blower of an air blower is provided.
In this way, since the air heat-exchanged with the ground in the support pile is directly used, it is only necessary to heat the air in the support pile only with a simple heater. For example, in winter, the internal space of the building is cooled. A configuration in which the cut air is heated to some extent by heat exchange with the ground and the shortage is heated by a heater to reduce energy consumption for heating can be obtained easily and easily.

Moreover, in this invention, it is an air-conditioning system in any one of Claim 1 thru | or 4, Comprising: The said air blower is a filter which the air which blows in the said air blower passes, and supplements the dust in the said air It is preferable to have a configuration including
In this invention, the filter which supplements the dust in the air ventilated with the air blower of an air blower is provided.
As a result, even in an air-conditioning system that directly circulates air that has been heat-exchanged with the ground in the support pile with the air in the interior space of the building, dust that may enter the support pile is removed by the filter. Since it is supplied to the internal space, good air conditioning can be easily obtained with a simple configuration, and a simple air blower equipped with a blower is used, so it is easy to replace and clean the filter, and maintenance is easy. Can be.

Furthermore, in this invention, it is an air-conditioning system in any one of Claim 1 thru | or 5, Comprising: The said air blower is provided with the water | moisture-content removal part which removes the water | moisture content in the air ventilated with the said air blower. It is preferable that
In this invention, the moisture removal part which removes the water | moisture content in the air ventilated with the air blower of an air blower is provided.
As a result, even in an air conditioning system that directly circulates the air heat-exchanged with the ground in the support pile with the air in the internal space of the building, the moisture removal unit removes moisture that may be mixed into the air in the support pile. Since it is supplied to the internal space, good air conditioning can be easily obtained with a simple configuration, and since a simple air blower equipped with a blower is used, it is easy to remove water removed by the water removal unit, etc. Therefore, maintenance management is also easy.
In addition, as a water | moisture-content removal part, various structures, such as a structure using chemical | medical agents, such as structures, such as a drain, and a moisture absorbent, are applicable, for example.

Moreover, in this invention, it is an air-conditioning system in any one of Claim 1 thru | or 6, Comprising: Said 1st main pipe | tube is each intake from the said support pile connected by the drive of the air blower of the said air blower. The second main pipe is connected to the plurality of support piles in a state where the amount is substantially the same, and the amount of air supplied to the inner pipe to be connected is substantially the same by driving the blower of the blower. It is preferable that the plurality of inner pipes are connected in such a state.
In this invention, while driving the blower of the blower, the first main pipe is configured to be connected to the plurality of support piles so that the amount of intake air from the support pile is approximately the same, and the blower of the blower is driven. Thus, the second main pipe is configured to be connected to the plurality of inner pipes so that the amount of air blown to the inner pipe is approximately the same.
Thereby, the state in which the air in each support pile and the internal space of the building circulate at the same level is obtained, and good air conditioning efficiency is obtained.
Here, as the connection in a state where the intake air amount and the air flow amount are equal, for example, the inner diameter and the length dimension are appropriately set so that the air path resistance is equal, and the first main pipe and the second main pipe are configured. The

And in this invention, it is an air-conditioning system in any one of Claim 1 thru | or 7, Comprising: It is preferable that the said support pile shall be set as the structure by which corrosion resistance was provided to the internal peripheral surface at least.
In this invention, the corrosion resistance is provided to at least the inner peripheral surface of the support pile.
This prevents water droplets from adhering to the interior space of the building and the inner surface of the support pile through which air is circulated due to condensation, etc., and corroding the support pile. As well as being obtained, a good air-conditioning state can be obtained even in a configuration in which the air in the support pile is directly used for air-conditioning by preventing a strange odor due to corrosion.
In addition, for example, it is not limited to applying corrosive paint or the like to give corrosion resistance only to the inner surface of the support pile. For example, the support pile itself may be configured with a corrosion resistant member such as stainless steel. Good.

Furthermore, in this invention, it is an air-conditioning system in any one of Claim 1 thru | or 8, Comprising: The said air blower is the structure provided with the ultraviolet irradiation device which irradiates an ultraviolet-ray to the air ventilated with the said air blower. It is preferable to do.
In this configuration, an ultraviolet irradiation device that irradiates ultraviolet rays to the air blown by the blower of the blower is provided.
As a result, even in an air-conditioning system that directly circulates the air heat-exchanged with the ground in the support pile with the air in the interior space of the building, bacteria and mold that may be mixed into the air by the ultraviolet irradiation device Since the air is sterilized with ultraviolet rays and supplied to the internal space, good air conditioning can be easily obtained with a simple configuration, and a simple blower device with a blower is used, so an ultraviolet lamp is provided, etc. It is easy to obtain good air conditioning by supplying easily sterilized air.

A building construction method according to the present invention is a building construction method for building a building supported on a support pile embedded in the ground and constructed on the ground and provided with an air conditioning system. A housing having an indoor air inlet for sucking in air, an indoor air outlet for discharging air into the internal space, an outdoor air inlet for sucking air from the outside, and an outdoor air outlet for discharging air to the outside An intake operation that is disposed in the housing and sucks in through the indoor air intake and exhausts through the outdoor exhaust; and intakes through the outdoor air intake and through the indoor exhaust Using a blower equipped with a blower that performs at least one of the blowing operations to be exhausted, the cylindrical support pile made of steel pipe with at least a substantially closed tip is formed into the structure of the structure. Multiple support piles to be buried A support pile processing step of cutting the upper end portion of the support pile so that the upper end portions of the plurality of embedded support piles are in a predetermined position from the ground surface, and substantially closing the upper end portion; and A support pile communication step in which the inner peripheral sides communicate with each other at a predetermined position from the upper end of the support pile that has been cut and closed at the upper end, and the support pile that has been cut off and closed at the upper end A through hole forming step of forming a through hole by penetrating from the upper end of the inner surface to a peripheral surface at a predetermined position in a state where the inside communicates with the outside, and one end of the through hole formed in the through hole forming step Of the buried support piles, the flexible inner pipe is inserted into the state where the buried support piles are opened near the lower end of the buried support piles, and the other end side is extended from the through hole to the outside. An inner tube disposing step of disposing at least one of them; At least any one of at least any one of a plurality of support piles connected in the support pile communication step and at least one of the connection portions connecting the support piles, the blower A support pile side air passage forming step for communicating with the outdoor air inlet of the inner pipe, and an inner tube side air passage forming for communicating the other end side of the inner tube disposed in the inner tube disposing step with the outdoor exhaust port of the blower After the step, the support pile side air passage formation step and the inner pipe side air passage formation step, the concrete foundation on which the building is built is formed integrally in a state of connecting the upper end portions of the support piles And performing a foundation forming step.
In the present invention, in the support pile burying step, a plurality of hollow support piles made of steel pipe with closed end portions are buried in the ground so that the axial direction is substantially along the vertical direction. After the support pile burying step, in the support pile processing step, the upper end portions of the plurality of embedded support piles in the vertical direction are cut into the predetermined positions from the ground surface, and the upper end portions are cut. Substantial occlusion. After this support pile processing process, it connects to the state where the inner peripheral side of a support pile mutually communicates in a predetermined position from the upper end part of a support pile at a support pile communication process. Further, after the support pile processing step, in the through hole forming step, a through hole is formed in the peripheral surface at a predetermined position from the upper end of the support pile so that the inside communicates with the outside. After this through hole forming step, in the inner tube disposing step, a flexible inner tube is inserted into the through hole of the support pile so as to open near the lower end of the support pile embedded in one end. The inner pipe is disposed in a state in which the other end side extends from the through hole to the outside. And in the support pile side air passage formation process, at least any one of at least any one of the plurality of support piles connected in the support pile communication process and the connection part connecting the support piles, Communicate with the outdoor air intake of the blower. Further, in the inner pipe side air passage forming step, the other end side of the arranged inner pipe is communicated with the outdoor exhaust port of the blower. After communication with these blowers, a concrete foundation on which the building is built is formed integrally in a state where the upper ends of the support piles are connected.
In this way, in order to obtain a predetermined support strength of the building, the support pile is embedded to a relatively deep position in the ground, for example, a deep position of 3 m or more from the ground surface. Since the underground temperature is stable at the lower end in the vertical direction, air in the lower end of the support pile is buried by embedding a support pile that is made of a hollow steel pipe and closed so that earth and sand do not flow inside when buried. The heat exchange with the underground can be satisfactorily obtained through the support pile made of steel pipe having high heat conduction efficiency with the underground. For this reason, the air inside the support pile that has been heat-exchanged with the ground is piped before the building is built after the support pile is buried, and the blower of the blower that is connected is driven. The air in the space and the air in the support pile are circulated, and the air in the support pile can be directly blown into the internal space of the building supported by the support pile so that it can be used for air conditioning. In addition, since the support pile is made of steel pipe, even if condensation occurs due to air circulation between the support pile and the internal space of the building, generation of mold etc. is suppressed, so it can be directly circulated. Good air conditioning can be easily obtained with a simple configuration. In addition, a concrete foundation is installed on the upper end of a support pile that is connected to the building after piping with the blower, for example, according to a predetermined strength design for supporting the building, and the building is built on this concrete foundation. By doing so, it is possible to obtain reliable support of the building and good air conditioning by simple construction that is integrally connected to the support pile.

And in this invention, it is a construction method of the building of Claim 10, Comprising: The said support pile embedding process is a tubular | cylindrical trunk | drum body part by which the inner peripheral side was substantially obstruct | occluded, and this trunk | drum A pile construction jig provided with a plate-shaped excavating blade integrally joined in a state where the plane is inclined obliquely intersecting the axial direction of the body part on the outer peripheral surface of the body, and the pile construction jig A tubular pipe pile made of steel pipe having substantially the same diameter as the body part, and connecting the body part of the pile construction jig to one end in the axial direction of the pipe pile by welding, The pipe pile is connected and buried until a predetermined rotational torque is generated while holding the other end side of the pipe pile in a state where the provided side is the lower end side in the vertical direction and rotating in the ground. It is characterized by.
In this invention, in the support pile embedding process, the steel plate is inclined in a state where the plane is inclined obliquely intersecting the axial direction of the body portion on the outer peripheral surface of the tubular body made of a steel tube whose inner peripheral side is substantially closed. A pile construction jig in which steel excavation blades are integrally joined is welded and connected to one end of a tubular pipe pile made of steel pipe. And while connecting the pipe pile until a predetermined rotational torque is generated while holding the other end side of the pipe pile in a state where the side on which the construction jig is provided becomes the lower end side in the vertical direction To be buried.
As a result, it is possible to ensure a predetermined supporting force that reliably supports the building in the process of burying in the same manner as the conventional support pile burying, and by closing the upper end after burying the pipe pile, The air layer in the support pile can be partitioned and the piping work for connecting the air circulation device for circulating air to the support pile and the arranged inner pipe is easy, and the building is constructed after the piping work. It is sufficient to perform concrete foundation placement, and reliable support of the building and good air conditioning can be easily obtained.

Hereinafter, an embodiment relating to an air conditioning system of the present invention will be described with reference to the drawings.
[Configuration of air conditioning system]
FIG. 1 is a conceptual diagram showing a schematic configuration of an air conditioning system of the present invention. FIG. 2 is a side view with a part cut away showing a schematic configuration of the upper end portion of the support pile.
In FIG. 1, reference numeral 100 denotes an air conditioning system. This air conditioning system is a system that supports a building such as a house (not shown) and air-conditions the building.
The air conditioning system 100 includes a support unit 200, a blower 300, and an air path forming unit 400. The support part 200 includes a support pile 210 and a concrete foundation 220.

A plurality of support piles 210 are embedded in the ground in a state where the axial direction is substantially along the vertical direction. The support pile 210 includes a pile construction jig 211, a pipe pile 212, and a connection portion 213.
The pile construction jig 211 has a substantially cylindrical body portion 211A. The body portion 211A is formed of a steel pipe, for example, in a cylindrical shape having an outer shape of about 10 cm, a length of about 30 cm, and a wall thickness of about 5 mm. The body portion 211A is substantially closed in the axial direction by providing, for example, a substantially disk-shaped closing plate (not shown) on the upper end side, which is one end side in the axial direction, by welding or the like. Here, the substantially closed state may be such that, for example, when the support pile 210 is embedded in the ground, the soil and sand cannot be circulated.
A plurality of, for example, a pair of flat excavation blades 211B are provided on the outer peripheral surface of the body portion 211A. The excavating blade 211B is formed of a steel plate in a flat plate shape having a vertical dimension of about 20 cm, a horizontal dimension of about 10 cm, and a thickness dimension of about 5 to 7 mm. In addition, an arcuate cutout 211C is provided on one side in the longitudinal direction of the excavating blade 211B. The excavation blade 211B is integrally joined by, for example, welding in a state where the notch portion 211C is engaged with the outer peripheral surface of the body portion 211A and the flat surface is inclined to intersect the axial direction of the body portion 211A. In addition, the excavation blade 211B has an edge located on the tip side that is the other end in the axial direction of the support pile 210, which is the tip edge of the excavation blade 211B in an inclined direction, without being continuous with the outer peripheral surface of the trunk portion 211A. It is joined in a state protruding in the circumferential direction. The plurality of excavating blades 211B are inclined in the same direction, that is, in a state in which the plane on the pipe pile 212 side connected to the body part 211A on the same surface side is inclined in the same direction in the circumferential direction of the body part 211A. Is provided.
Further, excavation claw portions 211D are respectively provided at the corners of the excavation blades 211B. These excavation claw portions 211D are formed in a wedge shape by casting, for example. And the excavation nail | claw part 211D is joined to the surface on the opposite side to the side where the pipe pile 212 used as the lower surface side of the excavation blade 211B, ie, the front end side of the support pile 210, is derived | led-out from the trunk | drum 211A, for example. Further, the excavation claw portion 211D is joined so that the tip side protruding from the excavation blade 211B becomes gradually thinner. Further, the excavation claw portion 211D is welded so as to protrude from the excavation blade 211B substantially along the tangential direction at the corner portion of the circumference passing through the corner portion of the excavation blade 211B around the central axis of the body portion 211A.
And the pile construction jig | tool 211 is formed so that the maximum diameter dimension at the time of rotating centering around the central axis of the trunk | drum 211A may be set to about 30 cm. That is, the excavation blade 211B is joined in a state where the outer peripheral corner portion of the tip edge of the excavation blade 211B is separated from the center of the trunk portion 211A by about 15 cm. Thereby, the pile construction jig 211 is excavated with a diameter of about 30 cm and drilled in the ground.

The pipe pile 212 is formed in the same diameter with the steel pipe similar to the trunk | drum 211A of the pile construction jig 211, and is formed in the cylindrical shape whose length dimension is 5 m, for example. One end of the pipe pile 212 in the axial direction is formed so that the body portion 211A of the pile construction jig 211 can be integrally connected on the same axis by welding.
In addition, the support pile 210 is not limited to only one pipe pile 212, and as shown in FIG. 1, the pipe pile 212 may be configured to be coaxially connected in the axial direction.
Further, on the peripheral surface on the upper end side that is the other end side in the axial direction of the pipe pile 212, a protruding portion 212A protruding in a prismatic shape is integrally projected by welding or the like, for example.
Further, as shown in FIG. 2, a connecting screw portion 212 </ b> B is provided at the upper end of the pipe pile 212 in the support pile 210. This connection thread part 212B is a substantially cylindrical shape made of steel pipe, and is provided with a connection cylinder part 212B1 coaxially connected to the axial end of the pipe pile 212 by welding on one end side in the axial direction. A male screw portion 212B2 having an outer diameter substantially the same as the inner diameter of the pipe pile 212 and a male screw provided on the outer peripheral surface is provided on the other end side. In the configuration in which a plurality of support piles 210 and pipe piles 212 are connected, the connection screw portion 212B is integrally provided on the upper end side of the pipe pile 212 located on the upper end side in the axial direction.

As shown in FIG. 2, the connecting portion 213 has a cylindrical connecting pipe portion 213 </ b> A formed with the same diameter as a steel pipe similar to the trunk portion 211 </ b> A of the pile construction jig 211. In addition, FIG. 2 shows the state before piping after embedding the support pile 210 in the ground for convenience of explanation.
On the inner peripheral surface of one end in the axial direction of the connecting pipe portion 213A, a female screw portion 213A1 is provided to which the male screw portion 212B2 of the connecting screw portion 212B provided on the upper end portion of the pipe pile 212 is screwed. In addition, the other end of the connecting pipe portion 213A is provided with a substantially disc-shaped closing plate 213B by welding or the like on the upper end side which is one end side in the axial direction, for example, similarly to the trunk portion 211A of the pile construction jig 211. And substantially closed in the axial direction.
The connecting pipe portion 213A is formed with a through-portion 213A2 as a cylindrical through-hole that protrudes outward and has an inner peripheral surface in communication with the outer peripheral surface. Yes. In addition, although the cylindrical penetration part 213A2 was provided and demonstrated, you may form in a structure without a flange part as a through-hole.
Further, a cylindrical joint portion 213 </ b> C, in which an inner peripheral surface communicates with an inner peripheral surface of the connection pipe portion 213 </ b> A and projects in an outwardly branched manner, is integrally provided on the peripheral surface of the connection pipe portion 213 </ b> A. ing. As shown in the figure, there are only one joint portion 213C or a plurality of joint portions 213C, for example, two. In addition, the penetration part 213A and the joint part 213C are not limited to the configuration provided in a state protruding in the same direction, and may be provided in a state protruding in different directions.
As shown in FIG. 1, the joint portion 213 </ b> C of the connecting portion 213 communicates with the joint portion 213 </ b> C of the adjacent support pile 210 and the inside of the support pile 210 through the connecting pipe 410 constituting the air passage forming portion 400. It is connected to. For example, a hard plastic pipe, a pressure-resistant hose, or the like is used as the connection pipe 410, and the connection pipe 410 is connected to the joint portion 213C by a connection pipe 411.

The concrete foundation 220 is formed in a state in which a plurality of support piles 210 are integrally connected to an upper end portion in a vertical direction which is one end of the support pile 210 in the axial direction. The concrete foundation 220 is formed by in-situ concrete beating on the crushed stone, which is not shown, with a predetermined thickness dimension placed on the bottom surface of the root cut groove 510 excavated in a groove shape on the ground.
The concrete foundation 220 has a strip-shaped base 221 having a predetermined thickness dimension, for example, a thickness dimension of about 15 cm. The base 221 is formed by forming a frame so as to surround a reinforcing bar (not shown) that is framed on the crushed stone, and concrete is cast in-situ so that the reinforcing bar is wrapped with the upper end of the support pile 210 in the mold. Is done. Further, the base 221 is provided with a wall-like cloth base 222 having a predetermined height dimension, for example, about 57 cm, which is located approximately at the center in the width direction, for example. The fabric base 222 is formed by forming a mold so as to surround a reinforcing bar formed as a shaft on a reinforcing bar (not shown) protruding from the base 221, and concrete is cast in place so as to wrap the reinforcing bar in the mold. . The base 221 and the fabric foundation 222 constitute an inverted T-shaped concrete foundation 220. And, for example, a house which is a building is framed at the upper end of the concrete foundation 220, and the support part 200 and the house are integrally connected.
The concrete foundation 220 is integrally formed so that the upper end portion of the support pile 210 embedded in the base 221 is included in at least 5 cm or more. That is, when it becomes shorter than 5 cm, the joint strength between the support pile 210 and the concrete foundation 220 is lowered and cannot be integrated. For this reason, the concrete foundation 220 is formed in a state in which at least 5 cm or more of the upper end portion of the support pile 210 is included.

The blower 300 is installed as appropriate, for example, indoors or outdoors in a house, and circulates air between the hollow support pile 210 of the support part 200 and the room that is the interior space of the house. The air blower 300 includes a substantially box-shaped housing 310.
The housing 310 has an indoor intake port, an indoor exhaust port, an outdoor intake port 311, and an outdoor exhaust port 312 (not shown). The indoor intake port and the indoor exhaust port of the housing 310 are formed so as to communicate with the room directly or via a pipe. In addition, the outdoor air inlet 311 and the outdoor air outlet 312 of the housing 310 are formed so as to communicate with the outdoors directly or through piping.
In addition, a blower (not shown) such as a blower, a fan, or a pump is disposed in the housing 310. This blower is driven by the supply of electric power from a power supply unit (not shown) disposed in the housing 310, and sucks air from the house room through the indoor air intake and exhausts it through the outdoor air exhaust 312. At the same time, an air blowing operation is performed in which air is sucked from outside through the outdoor air inlet 311 and exhausted into the room, that is, blown into air through the indoor air outlet. In addition, as a blower, for example, a configuration in which intake / exhaust at the outdoor intake port 311 and the outdoor exhaust port 312 are performed by one unit, an intake air from the outdoor intake port 311, an exhaust air from the outdoor exhaust port 312, A plurality of them may be provided.
Further, a filter (not shown) is disposed in the housing 310. For this filter, a woven fabric, a non-woven fabric, a porous material, or the like that can ventilate air that is ventilated into and out of the room through the blower 300 by driving the blower and that can capture dust in the air can be used. And the filter is arrange | positioned in the housing | casing 310 so that attachment or detachment is possible. In other words, the filter is arranged so that it can be removed and replaced or washed and reattached.
The air blower 300 is provided with a heater. This heater has a heating wire etc., for example, and is arrange | positioned in the state which heats the air ventilated to the inside of a room via the air blower 300 by the drive of an air blower.
In addition, as the air blower 300, for example, a structure provided with a dehumidifying agent, a moisture removing unit such as drain, or a sterilizing process for sterilizing by irradiating the air blown into the room with ultraviolet rays or contacting with ozone. A part or the like may be provided. In the configuration in which the moisture removing unit is provided, even in an air conditioning system in which the air heat-exchanged with the ground in the support pile 210 is directly circulated with the air in the internal space of the building, the moisture removing unit may cause dew condensation in the support pile 210. Moisture that may be mixed into the air due to water immersion or the like is removed and supplied to the internal space. Therefore, good air conditioning can be easily obtained with a simple configuration, and a blower 300 with a simple configuration including a blower is used. Therefore, it is easy to remove the moisture removed by the moisture removing unit, and maintenance can be easily performed.
In addition, as the air blower 300, for example, a configuration in which one unit is connected to the air path forming unit 400 as an outdoor unit, or a configuration in which each unit is disposed in each room as an indoor unit and connected to the air path forming unit 400 is used. Also good.

The air passage forming unit 400 includes a connecting pipe 410 that connects the joint parts 213C of the support pile 210 described above, an inner pipe 420, a first main pipe 430, and a second main pipe 440.
The inner tube 420 is a tubular object that is flexible, such as a pressure-resistant hose or a cold-resistant hose, and has an outer diameter that can be inserted into the through portion 213A2 of the connecting tube portion 213A. The inner pipe 420 is inserted into the through-hole 213A2 of the support pile 210 at one end and opened near the lower end of the support pile 210, and the other end extends from the through-hole 213A2 to the outside of the support pile 210. The support pile 210 is disposed in a substantially double pipe structure. In addition, between the inner peripheral edge of penetration part 213A2 and the outer peripheral surface of the inner tube | pipe 420, for example, filling materials (not shown) such as a sealing agent are filled and closed.
One end of the first main pipe 430 is connected to the outdoor air inlet 311 of the casing 310 of the blower 300 and the other end is connected to, for example, the joint portion 213C of the support pile 210. For example, as shown in FIG. 1, the connection between the first main pipe 430 and the joint portion 213 </ b> C is performed on the joint portion 213 </ b> C of any one of the support piles 210 in which a plurality of support piles 210 are connected to each other through a connecting pipe. In addition to the connecting configuration, a configuration connecting to the coupling pipe 410, a configuration branching and connecting to each joint portion 213C, and a combination of these configurations can be exemplified. The first main pipe 430 can be exemplified by the use of a hard plastic pipe or a pressure hose, for example, similarly to the connecting pipe 410.
The second main pipe 440 has one end connected to the outdoor exhaust port 312 of the casing 310 of the blower 300 and the other end connected to the inner pipe 420. The connection between the second main pipe 440 and the inner pipe 420 is, for example, as shown in FIG. 1, in addition to a configuration in which a plurality of inner pipes 420 are connected in a branched state in a state of branching at a branch pipe 441 or the like. The structure etc. which are connected in a shape can be illustrated. The second main pipe 440 can be exemplified by the use of a hard plastic pipe or a pressure hose, for example, similarly to the connecting pipe 410 and the first main pipe 430.
The air passage forming unit 400 is connected to the air blower 300 and the first main pipe 430 and the second main pipe 440 in the room, the air inlet of the air blower 300 communicating with the room, the air blower 300 outdoor exhaust port 312, second main pipe 440, inner pipe 420, inside support pile 210, connecting pipe 410, first main pipe 430, outdoor air inlet 311 of blower device 300, and blower device 300 communicating with the room A circulation air passage that passes through the indoor exhaust port is formed, and air is circulated in this order by driving the blower of the blower 300.

[Operation of air conditioning system]
(Configuration of pile driving device)
First, the apparatus structure for embedding the support pile 210 is demonstrated based on drawing below.
FIG. 3 is an explanatory view with a part cut away showing an operation of burying a support pile by a pile driving device for forming a concrete foundation.

In FIG. 3, reference numeral 1 denotes a pile driving device, and this pile driving device 1 includes a crane vehicle 3 including a crane 2. The crane 2 of the crane vehicle 3 is configured to be turnable and turnable in the vertical direction and to be extendable and contractible. In addition, the crane vehicle 3 is provided with a jack 4 for preventing overturning.
Moreover, the pile driving device 1 is provided with, for example, a hydraulic motor 6 as drive means capable of forward and reverse rotation. The hydraulic motor 6 has, for example, a spline output shaft 7 that can be rotated by driving an engine (not shown) of the crane vehicle 3. The hydraulic motor 6 is detachably attached to the tip of the crane 2 in a state where the spline output shaft 7 is substantially along the vertical direction that is the vertical direction of the axial direction. The rotational torque of the hydraulic motor 6 can be recognized by a torque meter (not shown) provided on the crane cab 8 of the crane vehicle 3.

Furthermore, the pile driving device 1 includes a pile driving jig 10.
As shown in FIG. 3, the pile driving jig 10 has a substantially cylindrical tube portion 11. Then, a substantially cylindrical mounting portion 12 is integrally provided coaxially with the cylindrical portion 11 at one end of the cylindrical portion 11. The mounting portion 12 has an outer diameter smaller than the outer diameter of the cylindrical portion 11, and the spline output shaft 7 of the hydraulic motor 6 is detachably fitted to the inner periphery. The pile driving jig 10 is attached to the spline output shaft 7 of the hydraulic motor 6 so as to be rotatable about the central axis as a rotation axis in a state where the axial direction is along the vertical direction.
In addition, the attachment part 12 has a plurality of grooves (not shown) along the axial direction so that the spline output shaft 7 of the hydraulic motor 6 can be fitted to the inner peripheral surface.

Further, a substantially cylindrical fitting portion 15 having an outer diameter larger than that of the cylindrical portion 11 is integrally provided on the other end of the cylindrical portion 11 coaxially with the cylindrical portion 11. A substantially cylindrical pipe pile 212 is detachably fitted to the fitting portion 15 on the inner periphery.
The fitting portion 15 of the pile driving jig 10 is provided with a pair of cut portions 17 positioned in the radial direction of the fitting portion 15. The cut portion 17 is connected to the end edge, that is, the lower end edge attached to the hydraulic motor 6, and the pipe pile 212 is inserted into the fitting portion 15, and the protrusion 212 </ b> A of the pipe pile 212 is engaged. It is provided along the axial direction of the fitting portion 15 so as to be compatible. Further, an engagement portion 18 is notched in the cut portions 17. The engaging portion 18 is positioned on the opposite side of the lower end edge of the fitting portion 15, extends along the circumferential direction of the fitting portion 15, and rotates the spline output shaft 7 of the hydraulic motor 6 when the pipe pile 212 is embedded. It is provided in the direction. The engaging portion 18 can be engaged with the protrusion 212A of the pipe pile 212 engaged with the cut portion 17 by rotating the fitting portion 15 relative to the pipe pile 212 by the rotation of the spline output shaft 7. Is formed.

(Construction of air conditioning system)
Next, an operation for constructing the air conditioning system will be described with reference to the drawings.
FIG. 4 is an explanatory view with a part cut away showing a situation where a pipe pile is buried. FIG. 5 is an explanatory view with a part cut away showing a situation where the upper end portion is cut and removed after the pipe pile is buried. FIG. 6 is an explanatory view with a part cut away showing a state in which a connection thread portion is provided at the upper end portion of the pipe pile. FIG. 7 is an explanatory diagram showing a state in which the air passage forming unit 400 is built on the support pile.

First, the support pile burying process is carried out.
That is, the hydraulic motor 6 is attached to the tip of the crane 2 of the crane vehicle 3. Further, the spline output shaft 7 of the hydraulic motor 6 is fitted to the mounting portion 12 of the pile driving jig 10. Then, the pile driving jig 10 is integrally attached to the spline output shaft 7. Moreover, as shown in FIG. 3, the crane 2 of the crane vehicle 3 is operated in advance at a predetermined position, for example, a position where a through pillar of a house (not shown) stands, and a pipe pile 212 in which a pile construction jig 211 is joined to one end. Is placed in a state where the side on which the pile construction jig 211 is provided is positioned on the lower side in the vertical direction, and the pipe pile 212 in the state where the pile construction jig 211 is erected on the fitting portion 15 is fitted. The protrusion 212 </ b> A of the pile 212 is engaged with the engagement portion 18, and the pipe pile 212 is suspended and supported on the crane 2 by the pile driving jig 10.
Thereafter, the hydraulic motor 6 is driven to rotate the spline output shaft 7 to rotate the pile driving jig 10. Due to the rotation of the pile driving jig 10 driven by the hydraulic motor 6, the protruding portion 212A comes off the engaging portion 18 and comes into contact with the end of the cut portion 17, and the pipe pile 212 also rotates integrally. And the rotational torque and load at the time of embedding are measured with the torque meter which is not illustrated of the crane cab 8, and the softness of the ground is judged and the embedding state of the pipe pile 212 is judged.
Here, for example, when the pipe pile 212 is struck again due to a design change or when the pipe pile 212 is bent or tilted, the spline output shaft 7 of the hydraulic motor 6 is used when the pipe pile 212 is embedded. Rotate in the direction opposite to the direction of rotation. Due to this reverse rotation, the protruding portion 212 </ b> A of the pipe pile 212 is engaged with the engaging portion 18 of the pile driving jig 10. And the pipe pile 212 will be in the state pulled out by the excavation blade 211B, the crane 2 is operated, the pile driving jig | tool 10 is rotated upwards so that it may move upwards, and the pipe pile 212 is pulled out. In addition, when removing the pulled pipe pile 212 from the pile driving jig 10, the pipe pile 212 is rotated with respect to the pile driving jig 10 in the rotation direction of the spline output shaft 7 at the time of embedding. Accordingly, the protruding portion 212A of the pipe pile 212 is disengaged from the engaging portion 18 and is positioned at the cut portion 17, and is removed by moving the pipe pile 212 in the axial direction. The movement of the pipe pile 212 can be easily removed by using its own weight.

And even if the pipe pile 212 is embed | buried, when it does not become predetermined | prescribed rotational torque, it judges that the pile construction jig | tool 211 of a front-end | tip part has not reached the ground, and reverses the hydraulic motor 6 a little and makes a pile driving jig 10 is removed, and another pipe pile 212 is attached to the pile driving jig 10 in the same manner as described above. And while suspending and supporting the lower end of the installed pipe pile 212, it is brought into contact with the upper end of the pipe pile 212 to be buried and connected by welding, and the hydraulic motor 6 is rotated again, as shown in FIG. The pipe pile 212 is further buried.
Further, it is determined that the pile construction jig 211 at the front end has reached the ground in a state where the pipe pile 212 cannot be buried due to a predetermined rotational torque, and the pipe pile 212 from which the pile driving jig 10 is buried is determined. Remove. In this way, a plurality of pipe piles 212 are sequentially buried at predetermined positions.

And after the support pile embedding process which embeds the pipe pile 212 in a predetermined position, a support pile processing process and a through-hole formation process are implemented.
That is, as shown in FIG. 5, the pipe pile 212 embedded in a groove shape that connects the upper end portion of the pipe pile 212 having a predetermined depth from the ground level GL, which is deeper than the freezing depth, from the ground level. The root cut groove 510 is formed by excavating the ground around the pipe pile 212 and the ground between the pipe piles 212 with a backfo.
Thereafter, the upper pipe portion 212 protruding from the concrete layer, that is, the upper end portion is cut using the level 21 as shown in FIG. 3 so that the upper end edge is located at a predetermined depth from the ground level GL. To do. The extra piece of the pipe pile 212 is used, for example, as the body part A of the pile construction jig 211, used as the connecting screw part 212B, or reused as the steel pile 212 as iron scrap.
Further, as shown in FIG. 6, the connecting screw portion 212 </ b> B is welded to the upper end portion of the pipe pile 212 whose excess upper end portion has been cut. The female threaded portion 213A1 of the connecting portion 213 is screwed into the male threaded portion 212B2 of the connecting threaded portion 212B to integrally connect the connecting portion 213 to the tube pile 212, and the upper end side of the tube pile 212 is closed by the connecting portion 213. A support pile 210 having an internal space is configured.
In addition, by attaching the connecting portion 213, the inside of the support pile 210 is in communication with the outside by the through portion 213A2 provided in advance in the connecting portion 213. That is, a through hole is provided in the support pile 210.

After the support pile 210 is buried, that is, after the pipe pile 212 is buried and the connecting portion 213 is attached, the support pile communication process and the inner pipe arrangement process are performed.
That is, the joint portion 213 </ b> C of the connection portion 213 of the adjacent support pile 210 is connected to a predetermined position from the upper end portion of the support pile 210 configured by attaching the connection portion 213 to the pipe pile 212 whose upper end portion is cut. The pipes 410 are connected in a state where the inner peripheral sides communicate with each other.
Further, the inner pipe 420 is piped in the through portion 213A2 formed in the through hole forming step. That is, one end of the inner tube 420 is inserted into the support pile 210 from the through portion 213 </ b> A <b> 2, and is inserted to a position where the lower end that is one end of the inserted inner tube 420 opens near the lower end of the support pile 210. The inner tube is inserted until, for example, the dropping of the inner tube 420 due to its own weight stops. In addition, since an end part may be caught in the welding part of the pipe piles 212 on the way and it may be in the state stopped, when the fall by a dead weight stops, the stop of a fall is confirmed as a state which shakes up and down. In this way, the lower end of the inner pipe 420 reaches the lower end of the support pile 210, that is, the position of the closing plate of the pile construction jig 211, and opens.
In the arrangement state of the inner tube 420, the end portion of the inner tube 420 extends from the through portion 213A2. In addition, what is necessary is just to block | close the clearance gap between the opening edge of penetration part 213A2 and the outer peripheral surface of the inner tube | pipe 420, for example with a sealing agent. In other words, a slightly larger through-hole 213A2 is formed so as to facilitate the insertion work of the inner pipe 420, and sealing is performed after the piping so that earth and sand flow into the support pile 210 and accumulate in the support pile 210. The volume in the support pile 210 for good air conditioning can be secured.

Then, a support pile side air path formation process and an inner pipe side air path formation process are implemented.
That is, the end portion of the first main pipe 430 is connected to at least one of the joint portions 213C of the support pile 210 connected by the connection pipe 410 in the support pile communication step or a portion provided in a branched shape on the connection pipe 410. To do. Further, the opposite end of the first main pipe 430 is connected to the outdoor air inlet 311 of the blower 300, and the support pile side that communicates the blower 300 and the inside of the support pile 210 as shown in FIG. Build a wind path.
Further, the end of the second main pipe 440 is connected to the end of the inner pipe 420 disposed in each support pile 210 that extends from the support pile 210. Further, the opposite end of the second main pipe 440 is connected to the outdoor exhaust port 312 of the blower 300, and as shown in FIG. 7, the inner pipe side air passage that communicates the blower 300 and the inner pipe 420. Build up.
By these supporting pile side air passage forming step and inner pipe side air passage forming step, inside the room, the indoor air inlet of the air blower 300 communicating with this room, the outdoor air outlet 312 of the air blower 300, the second main pipe 440, A circulation air passage is formed through the pipe 420, the support pile 210, the connection pipe 410, the first main pipe 430, the outdoor air inlet 311 of the air blower 300, and the air outlet of the air blower 300 communicating with the room. .

After these piping processes, a foundation forming process is performed.
That is, crushed stone (not shown) is laid down at the bottom of the root cut groove 510 with a predetermined thickness, and a concrete layer (not shown) called so-called discarding cone is formed on the crushed crushed stone by in-situ concrete casting. In addition, the ground excavated suitably as needed in the support pile side air passage formation step and the inner pipe side air passage formation step is backfilled.
Then, the reinforcing bars are assembled on a plane that has become substantially flat due to the throwing away container, and a mold is formed so as to cover the reinforcing bars. When this rebar shaft is assembled, it may be connected to the support pile 210 that protrudes from the plane of the throwing away container. Thereafter, the concrete is cast in-situ to a predetermined thickness in the mold and cured to form the base 221 of the concrete foundation 220. When the base 221 is formed, the upper end portion of the support pile 210 that protrudes from the upper surface of an unillustrated dumper (not shown) is buried in the concrete, is included in the base 221, and is integrated with the base 221. After the concrete is hardened, the formwork is dismantled.
Further, on the base 221 of the hardened concrete foundation 220, the reinforcing bars are continuously assembled to the reinforcing bars protruding from the base 221, and a mold is formed so as to cover the reinforcing bars. Then, concrete is cast in-situ at a predetermined height in the mold and cured to form a fabric foundation 222 of the concrete foundation 220 as shown in FIG. 1, and a substantially inverted T in which the fabric foundation 222 is continuous with the base 221. A character-shaped concrete foundation 220 is formed. An anchor bolt (not shown) is erected before the fabric foundation 222 is cured. Further, after the cloth foundation 222 is cured, the mold is disassembled. Then, the excavated root cutting groove 510 is backfilled to approximately GL, and a building is constructed on the concrete foundation 220.

[Function and effect of air conditioning system]
As described above, in the above-described embodiment, a plurality of hollow support piles 210 made of steel pipe with closed end portions are embedded in the ground so that the axial direction is substantially along the vertical direction. The upper portions of the plurality of embedded support piles 210 in the vertical direction are connected to and communicated with the first main pipe 430 that is connected to the outdoor intake port 311 that intakes air from outside the blower 300 by driving the blower. Let In addition, one end in the axial direction opens near the lower end of the hollow support pile 210 and the other end in the axial direction extends from the upper end of the support pile 210 to the outside from the upper ends of the buried support piles 210. The flexible inner tube 420 is inserted and disposed in the opened state. The other end of the inner pipe 420 extending from the upper end of the support pile 210 communicates with a second main pipe 440 that communicates with and connects to an outdoor exhaust port 312 that discharges air to the outside of the blower 300. Connect them together.
As described above, in order to obtain a predetermined support strength of a building such as a house, the support pile 210 is buried to a relatively deep position in the ground, for example, a deep position of 3 m or more from the ground surface. Since the underground temperature is stable at the lower end in the vertical direction, which is the tip of the burial of 210, the support pile 210 made of a hollow steel pipe and closed so as not to allow sediment to flow into the burial is buried. The air in the lower end portion of the pile 210 can be favorably exchanged with the ground through the support pile 210 made of steel pipe having high heat conduction efficiency with the ground.
For this reason, the air in the support pile 210 that has been heat-exchanged with the ground well is simply constructed by driving the blower of the blower 300 connected by piping after the support pile 210 is buried and before the construction of the building. The air in the internal space of the object and the air in the support pile 210 are circulated, and the air in the support pile 210 can be directly blown into the internal space of the building supported by the support pile 210 to be used for air conditioning. Is obtained. In addition, since the support pile 210 is made of a steel pipe, even if condensation occurs due to air circulation between the support pile 210 and the internal space of the building, generation of mold and the like is suppressed due to the antibacterial property of the metal. Good air conditioning can be easily obtained with a simpler configuration. Furthermore, a concrete foundation 220 is provided at the upper end of a support pile 210 that is connected to a building after piping with the blower 300, for example, in accordance with a predetermined strength design for supporting the building, and on the concrete foundation 220. By constructing the building, it is possible to obtain reliable support of the building and good air conditioning by the simple construction similar to the conventional method of integrally connecting with the support pile 210.

And the pipe pile 212 which provided the pile construction jig 211 for embedding the support pile 210 in the ground at one end, for example, until the pile construction jig 211 reaches the ground and a predetermined supporting force is obtained. A hollow portion in which 212 is connected while being sequentially connected, and a connection portion 213 is provided at an upper end portion connected to the building via the concrete foundation 220 so that air used for air conditioning is circulated through heat exchange with the ground. Therefore, the supporting force as the supporting pile 210 for supporting the building can be secured. Furthermore, after burying the pipe pile 212 until a predetermined supporting force is obtained, it is closed only by connecting the connection part 213 having a simple structure including the joint part 213C and the penetration part 213A2 to the connection pipe part 213A of the steel pipe. An air layer can be formed in the support pile 210 for circulating air with the pile construction jig 211, and an inner pipe 420 for circulating air used for air conditioning, the first main pipe 430, The connection with the second main pipe 440 can be easily performed, and reliable support of the building and good air conditioning can be easily obtained.
In particular, it is possible to reduce the cost by recycling the upper end portion of the pipe pile 212 embedded until a predetermined supporting force is obtained, to the trunk portion 211A of the pile construction jig 211 and the connection pipe portion 213A of the connection portion 213. The benefits of environmental protection through reduction of industrial waste and industrial waste can also be obtained.
Furthermore, since the cylindrical through portion 213A2 is provided, the flexible inner tube 420 to be disposed is damaged at the opening edge of the through hole as compared with the case where the through hole is simply formed. Can be prevented.

In addition, the first main pipe 430 is connected to the plurality of embedded support piles 210 and the second main pipe 440 is connected to the inner pipe 420 fitted and inserted into the support pile 210, and then the upper end of the support pile 210 is constructed. A concrete foundation 220 on which an object is constructed is integrally provided.
For this reason, after embedding the support pile 210, the first main pipe 430 is connected to the upper end portion of the support pile 210 exposed to the ground surface for the embedding work, and the inner pipe 420 is disposed to provide the second main pipe 440. After connecting the concrete foundation 220, the concrete foundation 220 is placed and integrated at the upper end portion of the exposed support pile 210 so as to be integrated with the building. That is, after embedding the support pile 210 and before placing the concrete foundation 220 that is normally carried out, the exposed support pile 210 is piped for air conditioning. The structure in which the support pile 210 for supporting the object can be used for air conditioning is simply obtained by performing a simple piping work with a short period before the construction of the building.

Further, a heater for heating the air blown by the blower of the blower 300 is provided.
For this reason, since the air heat-exchanged with the underground in the support pile 210 is directly used, it is only necessary to heat the air in the support pile 210 only with a simple heater. For example, in the winter, the internal space of the building The structure which can reduce the consumption energy for heating by heating the cold air to some extent by heat exchange with the ground and heating the shortage with a heater can be obtained easily and easily.

Moreover, the filter which supplements the dust in the air ventilated with the air blower of the air blower 300 is provided.
As a result, even in an air-conditioning system that directly circulates air that has been heat-exchanged with the ground in the support pile with the air in the interior space of the building, dust that may enter the support pile is removed by the filter. Since it is supplied to the internal space, good air conditioning can be easily obtained with a simple configuration, and a simple air blower equipped with a blower is used, so it is easy to replace and clean the filter, and maintenance is easy. Can be.

The first main pipe 430 is configured to be connected to the plurality of support piles 210 so that the intake air amount from the support piles 210 is approximately the same by the drive of the blower of the blower 300, and by the drive of the blower The second main pipe 440 is configured to be connected to the plurality of inner pipes 420 so that the amount of air blown to the inner pipe 420 is approximately the same.
For this reason, for example, the inner diameter and the length dimension are appropriately set, and the first main pipe 430 and the second main pipe 440 are connected to the support piles 210 and the inner pipes 420 so as to have the same air path resistance. The state in which the air in each support pile 210 and the internal space of the building circulate at the same level is obtained, and good air conditioning efficiency is obtained.

Further, as the support pile 210, a plate-shaped excavation blade 211B is integrally joined in a state where the plane is inclined obliquely intersecting the axial direction of the body portion 211A, and excavation claws 211D are formed at the corners of the excavation blade 211B. A pile construction jig 211 is provided.
For this reason, a simple configuration in which a flat excavation blade 211B having an excavation claw portion 211D is provided on a substantially cylindrical body portion 211A can be excavated satisfactorily even when tree roots, gravel, etc. exist in the ground. The thick excavation blade 211B can be easily provided, the pipe pile 212 can be easily embedded to a predetermined depth, and the building can be supported by the tip of the trunk portion 211A and the excavation blade 211B even on soft ground. The concrete foundation 220 that can be supported can be easily formed. Furthermore, since the excavation claw portion 211D is located at the corner of the excavation blade 211B, wear during excavation at the corner of the excavation blade 211B can be prevented, and excavation ability can be ensured until the pipe pile 212 is buried, You can excavate to a certain depth without fail.
Further, the body portion 211A is formed of a steel pipe, and the excavation blade 211B is formed of a steel plate and is welded to the body portion 211A. For this reason, the pile construction jig 211 can be easily formed, the productivity can be improved and the cost can be reduced, and a relatively thick excavation blade 211B can be easily provided, and a stable excavation can be obtained. The construction jig 211 can be easily obtained.
Further, the tip edge of the excavating blade 211B on the side to be excavated is provided so as to protrude from the outer peripheral surface of the body portion 211A in the circumferential direction without being continuous with the outer peripheral surface, and at the tip edge of the excavating blade 211B The excavation claw portion 211D is provided so as to protrude in the tangential direction at the corner portion. Therefore, a load is applied along the protruding direction of the excavation claw portion 211D at the time of excavation, and it is possible to prevent damage such as the excavation claw portion 211D dropping off from the excavation blade 211B. And can excavate stably. Further, the excavation blade 211B has a rectangular plate shape, and one edge in the perpendicular direction adjacent to the tip edge is joined to the trunk portion 211A, so that there are at least two corner portions of the tip edge protruding from the trunk portion 211A of the excavation blade 211B. That's it. As a result, the position of the corner of the leading edge becomes a different distance from the central axis of the body 211A. Therefore, the excavation claw portion 211D is in a state in which the protruding direction is not parallel but protrudes in a different direction, and when the excavation claw portion 211D reaches the hard support ground, the excavation claw portion 211D is well bitten into the support ground. Thus, a stable support state of the support pile 210 can be easily obtained.

Further, a connection thread portion 212B for attaching the connection portion 213 after cutting the upper end portion of the pipe pile 212 is provided, and the connection portion 213 is attached by screwing to constitute the support pile 210.
For this reason, since the connection part 213 is attached not by direct welding, but by screwing, for example, the welding equipment required for connecting the pipe pile 212 or the like is connected to the connecting screw part 212B having the joint part 213C and the penetrating part 213A2. After mounting, it becomes unnecessary when shifting to the piping work, and the piping work can be facilitated.

A protruding portion 212A is provided on the outer peripheral surface of the end portion of the pipe pile 212, and is attachable to and detachable from a hydraulic motor 6 that can be rotated in the forward and reverse directions and attached to the tip of the crane 2 of the crane vehicle 3 so as to be rotatable about the central axis. A substantially cylindrical pile driving jig 10 is attached with the axis as the vertical direction, and the upper end portion of the pipe pile 212 of the support pile 210 is fitted to the substantially cylindrical fitting portion 15 of the pile driving jig 10. The protrusion 212 </ b> A of the pile 212 is engaged with the notch 17 provided along the axial direction continuously to the lower end edge of the fitting portion 15. Then, the pipe pile 212 is rotated together with the pile driving jig 10 and embedded by the forward rotation of the hydraulic motor 6. Further, by engaging the reverse rotation of the hydraulic motor 6, the protrusion 212 </ b> A of the pipe pile 212 is notched at the upper end portion of the cut portion 17 along the circumferential direction of the fitting portion 15 at least in the forward rotation direction of the hydraulic motor 6. The pipe pile 212 is engaged with the portion 18, the movement of the pipe pile 212 is restricted with respect to the axial direction of the pile driving jig 10, and the buried pipe pile 212 can be pulled out from the ground.
For this reason, the pipe pile 212 can be easily constructed without using a special structure by a forward / reverse rotation of the hydraulic motor 6 with a simple reverse L-shaped structure constituted by the cut portion 17 and the engagement portion 18. You can choose to embed, pull out or suspend. From this, workability can be improved and the construction period can be shortened easily. Furthermore, the pile driving jig 10 having the pulling function of the pipe pile 212 can be easily formed, the productivity can be improved, and it can be provided at low cost.

[Other Embodiments]
Note that the present invention is not limited to the above-described embodiment, and includes other configurations that can achieve the object of the present invention, and includes the following modifications and the like.

That is, the support pile 210 is not limited to a cylindrical shape, and may be, for example, a rectangular tube shape or an elliptical tube shape.
Moreover, although the support pile 210 was comprised and comprised with the pile construction jig | tool 211, the pipe pile 212, and the connection part 213, this pipe pile 212 is set as the structure which provided the excavation blade 211B in the front-end | tip part of the pipe pile 212, for example. It is not necessary to use the pile construction jig 211 that is separately formed, such as burying them sequentially and connecting them at the end.
In this case, the tip side of the pipe pile 212 to be embedded first is substantially closed, and the other pipe pile 212 is not closed.
Furthermore, the configuration is not limited to the connection portion 213 formed separately, and after the pipe pile 212 is buried and the upper end portion is cut off, the upper end surface is closed by welding a steel plate or the like, and the inner tube 420 is fitted. Without using the connecting portion 213, such as providing a through portion 213A2 to be inserted, forming a through hole, welding the connecting pipe 410 to the opened hole, or welding a branch pipe branched from the first main pipe 430. May be.
The number of excavating blades 211B is not limited to two, and for example, three or more excavating blades may be provided, or only one or a plurality of excavating blades may be provided spirally.
Further, the excavation claw portion 211D may not be provided.
Further, the tip garden of the body portion 211A may be formed in a sawtooth shape, for example, to improve excavation performance.

Further, as the support pile communication step, the step of connecting and connecting the support pile 210 with the connecting pipe 410 is illustrated, but the end portion of the first main pipe 430 branched in a branched shape is connected to the joint portion 213C of the support pile 210, respectively. The support piles 210 may be connected to each other via the first main pipe 430.
In this case, as an air path formation process between support piles, what is necessary is just to connect the edge part which the edge part joins the joint part 213C of the support pile 210 on the opposite side to the air blower 300 on the opposite side.

And as the support pile 210, not only steel type but various steel pipes, such as stainless steel, can be utilized. In particular, it is preferable to use a steel pipe having high strength and corrosion resistance, such as stainless steel, for maintaining a long-term bearing capacity.
Furthermore, as the support pile 210, it is good to give corrosion resistance to an internal peripheral surface, for example, apply | coat a corrosion-resistant coating material, or to form with corrosion-resistant stainless steel. This prevents water droplets from adhering to the inner space of the building pile 210 and the inner surface of the support pile 210 through which air is circulated due to condensation and the like, and the support pile 210 is prevented from being corroded. Supporting force can be obtained, and a favorable air-conditioning state can be obtained even in a configuration in which the air in the supporting pile 210 is directly used for air-conditioning by preventing a strange odor due to corrosion.

And although the filter was provided in the air blower 300, as mentioned above, as a filter, not only a filter cloth but any structure can be utilized. In addition, almost no dust or the like flows into the support pile 210, and since there is a relatively large proportion of dust flowing from the room into the air passage, it may be provided only on the outdoor exhaust port 312 side. It is good also as a structure which does not provide. Furthermore, you may provide in an air path.
Furthermore, although the heater 300 was provided in the air blower 300, it was not limited to the heater, and various heating means such as an oil heater that does not use a heating wire can be used. Furthermore, the heater may be provided not only in the blower 300 but also in the first main pipe 430, for example. Furthermore, it is not necessary to provide a heating means.
In addition, as heating by the heater, for example, a temperature sensor for detecting the outside air temperature or the temperature in the room is provided, and the air to be circulated is automatically heated based on the temperature by the temperature sensor. In winter, it may function automatically as heating. Moreover, it is good also as a structure which switches between air_conditioning | cooling and heating by the switching means by which switching operation by the user provided separately is carried out.
Similarly, the moisture removing unit, the sterilizing unit, and the like are not only provided in the blower device 300 but may be provided in other air passages or may not be provided.
In addition, since maintenance inspection is easy by providing in the air blower 300, it is preferable to provide these structures in the air blower 300.

Furthermore, the concrete foundation 220 is not limited to the inverted T-shaped cross section, but may be one having a L-shaped cross section in which the cloth foundation 222 is displaced to one side with respect to the base 221. Furthermore, as an independent pile, an independent concrete foundation may be provided at the upper end of each support pile 210, and a building may be constructed over each foundation.
Further, the building is not limited to a house and the like, and is not limited to a building constructed on the ground such as an underground structure such as a basement. In the case of an underground structure or the like, the concrete foundation 220 is not provided, but the upper end of each support pile 210 is continuous and concrete is cast on the plane to construct and connect the floor of the underground building. You may make it the structure which carries out. Similarly, the root cut groove 510 or the like may not be provided.

The description has been made using the hydraulic motor 6 capable of rotating in the forward and reverse directions. For example, it has an electric motor driven by electric power from a storage battery of the crane vehicle 3 or electric power from a separate generator, and an internal combustion engine driven by fuel supply. Any type of engine, such as one using exhaust gas from the engine of the crane vehicle 3 can be used. Moreover, it is not limited to the one that can rotate forward and reverse, but can be configured to rotate only in one direction. In this case, for example, the pile driving jig 10 may be provided with a gear or the like, and the pile driving jig 10 may be appropriately reversed by a switch operation or the like. Furthermore, the driving means is not limited to the one that is rotationally driven, and the pipe pile 212 may be embedded by vibration or impact.
Furthermore, the pile driving jig 10 is not limited to the configuration in which the mounting portion 12 and the fitting portion 15 are provided coaxially in the cylindrical portion 11, as described above, for example, a configuration in which vibration and impact are applied to the pipe pile 212, etc. Any configuration in which the driving force of the driving means is applied to the embedding of the pipe pile 212 can be used.
As the fitting portion 15, for example, an engagement portion 18 may be formed in an inverted T-shape or the like provided in contrast, and may be engaged even at the time of embedding. At least any shape that allows the protrusion 212A to be engaged when the pipe pile 212 is pulled out can be used.

  In addition, the specific structure and shape in the implementation of the present invention may be other structures as long as the object of the present invention can be achieved.

It is the side view which notched a part which shows schematic structure of the air conditioning system which concerns on one embodiment of this invention. It is the side view which notched a part which shows schematic structure of the upper end part of the support pile in the said one Embodiment. It is explanatory drawing which shows the operation | movement which embeds the pipe pile by the pile driving device for constructing the air-conditioning system in the said one embodiment. It is the side view which notched a part which shows the embedding condition of the pipe pile in the said one Embodiment. It is the side view which notched a part which shows the state after embedding of the pipe pile in the said one Embodiment. It is the side view which notched a part which shows the condition which attached the connection screw part in the said one Embodiment. It is the schematic which notched a part which shows the state after piping in the said one Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ......... Air-conditioning system 210 ......... Support pile 211 ......... Pile construction jig 211A ...... Body part 211B ...... Excavation blade 212 ......... Pipe pile 213 ......... Connection part 213A ... Connection pipe part 213A2 ... Through-holes 213C constituting the through-holes ...... Coupling part 220 ....... Concrete foundation 300 .... Blower 310 .... Case 311 .... Outdoor air inlet 312 .... Outdoor air outlet 420 ..... Inner pipe 430 ......... First main 440 ......... Second main

Claims (11)

An air conditioning system that performs air conditioning of an internal space formed by being partitioned from the outside by using a support pile embedded in the ground and integrally connected to the building to support the building. ,
It has an indoor air inlet that sucks air in the internal space, an indoor air outlet that discharges air into the internal space, an outdoor air inlet that sucks air from the outside, and an outdoor air outlet that discharges air to the outside. An air intake operation that is disposed in the housing and inhales through the indoor air intake and exhausts through the outdoor air exhaust, and intakes through the outdoor air intake and the indoor air exhaust An air blower equipped with a blower that performs at least one of the air blowing operations exhausted through
A plurality of hollow support piles made of steel pipe with the tip portion closed and the axial direction embedded in the ground along the substantially vertical direction;
A first main pipe having one end connected to and communicated with an outdoor air inlet of the blower, and upper parts of the plurality of embedded support piles connected in communication with each other;
It is inserted inside from the upper end of the buried support pile, one end in the axial direction opens near the lower end of the support pile, and the other end in the axial direction extends from the upper end of the support pile to the outside. A flexible inner tube that is opened and
A second main pipe, one end of which is connected to the outdoor exhaust port of the blower, and the other end of the inner pipe extended from the upper end of the support pile is connected to each other;
An air conditioning system characterized by comprising: The air conditioning system according to claim 1,
The support pile is
A tubular body made of steel pipe whose inner peripheral side is substantially closed, and an outer peripheral surface of this body part integrally joined in a state of being inclined obliquely intersecting the axial direction of this body part A pile construction jig equipped with a steel plate excavation blade,
A tubular pipe pile made of steel pipe connected substantially coaxially to one axial end of the trunk part of this pile construction jig;
A steel pipe having an axial end connected to the other end in the axial direction of the pipe pile substantially coaxially, the other end in the axial direction substantially closed, and a through-hole through which the inner pipe is inserted is opened in the peripheral surface A cylindrical connecting pipe part, and a connecting part provided with a joint part in which the inner peripheral surface communicates with the peripheral surface of the connecting pipe part and protrudes in the circumferential direction to which the first main pipe is connected. Air conditioning system characterized by that. The air conditioning system according to claim 1 or 2,
The plurality of embedded support piles are integrated with an upper end portion of a concrete foundation on which the building is constructed after the first main pipe is connected and the second main pipe is connected to the inner pipe. The air conditioning system is characterized by being installed in each. The air conditioning system according to any one of claims 1 to 3,
The said air blower was provided with the heater which heats the air ventilated with the said air blower. The air conditioning system characterized by the above-mentioned. The air conditioning system according to any one of claims 1 to 4,
The said air blower was provided with the filter through which the air ventilated with the said air blower was passed and supplemented the dust in the said air. The air conditioning system characterized by the above-mentioned. The air conditioning system according to any one of claims 1 to 5,
The said air blower was provided with the water | moisture-content removal part which removes the water | moisture content in the air ventilated with the said air blower. The air conditioning system characterized by the above-mentioned. The air conditioning system according to any one of claims 1 to 6,
The first main pipe is connected to the plurality of support piles in a state in which each intake amount from the support pile to be connected is approximately the same by driving the blower of the blower,
The second main pipe is connected to the plurality of inner pipes in a state in which the amounts of air supplied to the inner pipes to be connected are substantially the same by driving the blower of the blower. system. The air conditioning system according to any one of claims 1 to 7,
The air-conditioning system characterized in that the support pile is provided with corrosion resistance at least on the inner peripheral surface. The air conditioning system according to any one of claims 1 to 8,
The said air blower was equipped with the ultraviolet irradiation device which irradiates an ultraviolet-ray to the air ventilated with the said air blower. The air conditioning system characterized by the above-mentioned. A construction method for building a building supported by a support pile buried in the ground and constructed on the ground and equipped with an air conditioning system,
It has an indoor air inlet that sucks air in the internal space, an indoor air outlet that discharges air into the internal space, an outdoor air inlet that sucks air from the outside, and an outdoor air outlet that discharges air to the outside. An air intake operation that is disposed in the housing and inhales through the indoor air intake and exhausts through the outdoor air exhaust, and intakes through the outdoor air intake and the indoor air exhaust Using a blower equipped with a blower that performs at least one of the blowing operations to exhaust through
A support pile burying step of burying a plurality of cylindrical support piles made of steel pipe with at least a tip portion substantially closed according to the structure of the structure; and
A support pile processing step of cutting the upper end portion of the support pile in a state where the upper end portions of the plurality of embedded support piles are in a predetermined position from the ground surface, and substantially closing the upper end portion;
A support pile communication step in which the inner peripheral sides communicate with each other at a predetermined position from the upper end of the support pile that has been cut and closed by these upper ends,
A through-hole forming step for forming a through-hole in a state where the inside communicates with the outside from the upper end of the support pile that has been cut and closed by the upper end, and the inside communicates with the outside;
A flexible inner pipe is inserted into the through hole formed in this through hole forming process so that one end opens near the lower end of the embedded support pile, and the other end extends from the through hole to the outside. An inner pipe disposing step for disposing at least one of the embedded support piles in a state of being installed;
At least one of at least one of a plurality of support piles connected in the support pile communication step and at least one of connection portions connecting the support piles is used as the blower. A support pile side air passage forming process to communicate with the outdoor air inlet of
An inner tube side air passage forming step of communicating the other end side of the inner tube arranged in the inner tube arrangement step with an outdoor exhaust port of the blower;
After the support pile side air passage formation step and the inner pipe side air passage formation step, the foundation formation that integrally forms the concrete foundation on which the building is built at the upper end of the support pile is connected. And a method for constructing a building. It is a construction method of the building of Claim 10, Comprising:
The support pile burying step
A tubular body made of steel pipe whose inner peripheral side is substantially closed, and an outer peripheral surface of this body part integrally joined in a state of being inclined obliquely intersecting the axial direction of this body part A pile construction jig provided with a plate-shaped excavation blade, and a tubular pipe pile made of steel pipe having a diameter substantially the same as the trunk portion of the pile construction jig,
The body part of the pile construction jig is connected to one end in the axial direction of the pipe pile by welding, and the other side of the pipe pile is in a state where the side on which the pile construction jig is provided is the lower end side in the vertical direction. The pipe pile is buried while being connected until a predetermined rotational torque is generated while rotating in the ground while holding the structure.

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