KR100666103B1 - Convertible de-pressure drainage method and the system - Google Patents

Abstract

A construction method for an easily movable/installable decompression drainage system is provided to construct a decompression drainage system by a basin quickly and simply by changing the location of a decompression structure easily after forming a lean concrete layer using a connection structure. A construction method for an easily movable/installable decompression drainage system, which contains a decompression structure and a connection structure, comprises the steps of forming a drainage space(50) or a drain board(40) on the upper or lower part of an excavation plane(2), connecting the drainage space or the drain board with a connector(30), forming a lean concrete layer(4) by placing concrete while connecting with the connector to make the open top of the connector exposed to the upper part of the lean concrete layer, hardening the lean concrete layer and placing a decompression structure(10) on the wanted location and connecting the open top of the connector and the decompression structure using a connection structure(20) such as a pipe or a hose to be regulable in length and direction.

Description

Construction method of decompression drainage system which can be easily moved and installed and its system {Convertible de-pressure drainage method and the system}

1 is a view for explaining the concept of moving the decompression position in the decompression drainage system for each basin.

2 is a view for showing a conventional pressure reducing structure.

3 is a view for illustrating various applications of the pressure-sensitive structure of the present invention.

4 is a view showing a cross-sectional structure of the pressure-sensitive structure of the present invention.

5 is a view for showing the three-dimensional structure of the pressure-sensitive structure of the present invention.

6 is a view for illustrating various applications of the pressure-sensitive structure of the present invention.

<Description of Symbols for Main Parts of Drawings>

2: finish surface 4: discarded concrete layer

6: floor concrete layer 10: pressure-sensitive structure

12: upward extension path 12a: inlet

12b: split surface 14: downward extension path

14a: outlet 14b: split surface

16 housing 20 connection structure

30 connector 40 drain

50: drainage space 52: nonwoven fabric

54: gravel 101: sump

103: main drainage passage 105: drainage

110: pressure structure 112: upward extension pipe

114: downward extension pipe 120: decompression structure

122: collecting chamber 124: upper chamber

126: pipe 128: drain pipe

The present invention is to properly discharge the groundwater penetrating the lower part of the concrete floor through various drainage paths, such as drainage space, drainage, etc., and at the same time, the installation position of the decompression structure for decompressing the accumulated upward water pressure for each basin concrete or floor concrete The present invention relates to a method for constructing a reduced pressure drainage system and a system for easily moving the same after pouring.

In general, when a large amount of groundwater exists around and underneath the building, the building receives a buoyancy force due to the groundwater, which causes the building to rise and is destroyed, threatening safety. On the contrary, if a large amount of groundwater existing around and underneath the building is removed by forced drainage, the ground where the groundwater existed suddenly becomes empty and the ground subsides, which causes the building to fall and threaten its safety. do.

Many methods are used through dead weight and permanent (buoyancy) anchors for the up-water pressure treatment on the foundation floor of the building, but this is limited in that the continuous reliability of the buoyancy anchor's tensile force is not guaranteed with respect to the durability and safety of the building. have. An improved method is to place an artificial catchment and drainage under the foundation floor so that the groundwater flowing into the site is collected in the catchment along the drainage and pumped and discharged regularly to prevent the positive pressure from acting on the foundation floor concrete. Permanent drainage system method. This has the advantage of more stable and permanently solve the problem of up-water pressure in proportion to the high groundwater level compared to the conventional method.

In the case of the structure using such a drainage material, a very high water pressure is applied to the surface of the end of the drain pipe located near the sump and the bottom of the bottom concrete far from the sump. In addition, there is no way to control the excessive discharge, there is a problem that can not prevent ground subsidence. In order to solve this problem, some new technologies using vertical drainage pipes have been devised, but in order to reduce the upward pressure on the concrete floor, the high pressure applied to the drainage pipes installed in the sump can not be reduced in the middle. There is a disadvantage that can not maintain a constant upward pressure.

In order to improve this, the present applicant has developed a drainage system for installing a decompression structure for each basin and pre-decompresses it before being collected in the main drainage. However, in such a structure, in order to appropriately decompress the watershed, it is necessary to determine where the pressure reducing structure should be installed according to the hydraulic calculation. Even though the installation position and the capacity of the pressure reducing structure are determined according to the precise calculation in advance, In case of actual construction in the field, an error occurs in the position or a large number of cases need to be changed.

In such a field situation, when using a conventional pressure-sensitive structure there is a side that can not be quickly responded to the situation. This will be described with reference to the drawings.

1 is a view for explaining the concept of moving the decompression position in the decompression drainage system for each basin. Referring to FIG. 1, a collecting well 101 is formed at one side of the gulto finish surface, and the main drainage passage 103 is connected to the collecting well 101. In the main drainage channel 103, the drainage material 105 disposed horizontally or vertically on the entire surface of the underground pit soil is gathered for each basin and passes through the decompression structure 110, and then flows into the main drainage channel 103.

During actual site construction, even after casting concrete, the position of the decompression structure 110 should be moved from the A position to the B position close to the main drainage channel 103 or the C position to the D position must be completely corrected. Cases often occur. However, through the conventional pressure-sensitive structure, it is impossible to change the position after casting concrete.

2 is a view for showing a conventional pressure reducing structure. Referring to Figure 2, (a) is a decompression structure 110 using the U-shaped pressure-decompression tube, the groundwater is decompressed through the upper extension path 112 and the lower extension path 114, but the pressure reduction tube structure itself It is a structure buried in the discarded concrete layer (4) on the top of the gulto finish surface (2). Therefore, after the discarded concrete is poured, it is impossible to move the decompression structure 110 unless the discarded concrete layer 4 is torn off.

(b) is a decompression structure 120 patented by a third party, the groundwater is collected in all directions through a plurality of inlets (122a, 122b) in the drainage material 105 above the gulto finish surface (2) Flows into). Groundwater introduced into the collection chamber 122 is elevated to the upper chamber 124 of the upper side, such as F, and the elevated groundwater is introduced through the pipe 126 whose upper side is open upward, and the drainage pipe 128 along a separate path. To be discharged. {On the other hand, in such a pressure-reducing structure, the groundwater introduced into one of the inlets 122a through the drainage material 105 on one side is substantially the same as E through the drainage 105 of the other inlet 122b of the relatively low water pressure. In many cases, it is discharged directly through a path, and groundwater does not rise by the same path as F. In addition, it is also somewhat complicated to form a pressure-sensitive structure with this structure in shape. Therefore, it is proved that it is impossible to actually apply the structure as it is impossible to perform the pressure regulating function, which is the original purpose.

The decompression structure 120 is also a structure that is buried in the discarded concrete layer 4 to the middle portion of the upper chamber 124, once the discarded concrete is poured, no matter how to change the position of the discarded concrete layer (4) It is impossible until it is broken and lifted out. In addition, since all materials from the drain material to the drain pipe are buried in the discarded concrete layer 4, there are many cases where the freezing and twisting between various materials in the discarded concrete layer 4 are large. Should be constructed.

On a real construction site, unlike structural hydraulic calculations, it is often necessary to modify and change the structure by various variables at that time. In applying the decompression drainage system for each watershed developed by the applicant, it is necessary to correct the position of the decompression structure immediately in the field, unlike the initial calculation, even after casting the discarded concrete on the pit soil finish surface. In the case of the decompression structure and the construction method, since a large part of the discarded concrete layer is to be broken and torn off, the construction cost or period is excessively consumed, and the construction completion rate is reduced, which inevitably reduces the decompression drainage performance. That is, using a conventional general pressure reducing structure, it is impossible to effectively install and use a system for reducing pressure for each basin.

An object of the present invention is to provide a construction method and a system for allowing a pressure reducing structure for decompressing water to be easily changed after a cast concrete or bottom concrete is poured.

The construction of the present invention for achieving the above object, in the method for constructing a reduced pressure drainage system for maintaining an appropriate water pressure of the groundwater generated from the bottom of the basement building structure, the upper surface itself after the excavation, the after-layer layer, gravel layer, the bag A horizontal stop working step of stopping the gulto finish surface horizontally using a layer or a rock layer; A drainage space forming process for a drainage function on an upper portion or a lower portion of the finishing surface passing through the horizontal stop working process; A drain end forming step of connecting the connector having a predetermined height to the drain space; A concrete placing step of forming a concrete layer by pouring mortar to a predetermined height on the finishing surface and the drainage space while allowing the upper end of the connector to be exposed to the outside; A pressure reducing structure connecting process of disposing a pressure reducing structure including an upper extension path and a lower extension path on a concrete layer, and interconnecting an upper end of the connector and an upper extension path of the pressure reducing structure; And a drainage path connecting step of connecting the downward extension path of the decompression structure to the sump or the trench connected to the sump or the main drainage path, wherein the decompression structure and the connector are in contact with each other. Is connected directly or connected using a length adjustable connection structure, it is characterized in that to freely install the pressure-sensitive structure in a desired position, or to freely move the pressure-sensitive structure once installed.

In addition, the horizontal stop working process to stop the gulting finish surface horizontally by using the upper surface itself after the gulting, remnant layer, gravel layer, a rock layer or a rock layer; A drainage space forming step for allowing groundwater to flow over or below the finishing surface after the horizontal stop working process; A drainage arrangement step of arranging drainage in the drainage space; A drain end forming step of connecting the connector having a predetermined height to the drain; A concrete placing step of forming a concrete layer by pouring mortar to a predetermined height on the finishing surface and the drainage space while allowing the upper end of the connector to be exposed to the outside; A pressure reducing structure connecting process of disposing a pressure reducing structure including an upper extension path and a lower extension path on a concrete layer, and interconnecting an upper end of the connector and an upper extension path of the pressure reducing structure; And a drainage path connecting step of connecting the downward extension path of the decompression structure to the sump or the trench connected to the sump or the main drainage path, wherein the decompression structure and the connector are in contact with each other. Is connected directly or connected using a length adjustable connection structure, it is characterized in that to freely install the pressure-sensitive structure in a desired position, or to freely move the pressure-sensitive structure once installed.

In addition, the horizontal stop working process to stop the gulting finish surface horizontally by using the upper surface itself after the gulting, remnant layer, gravel layer, a rock layer or a rock layer; A drainage space forming process for a drainage function on an upper portion or a lower portion of the finishing surface passing through the horizontal stop working process; A concrete placing step of forming a concrete layer by pouring mortar to a predetermined height on the finishing surface and the drainage space while forming a communication path for connecting with the drainage space; A decompression structure connecting process of disposing a decompression structure including an upward extension path and a downward extension path on a concrete layer, and interconnecting an upper end of the communication path with an upper extension path of the decompression structure; And a drainage path connecting step of connecting the downward extension path of the decompression structure to the sump or the trench connected to the sump or the main drainage path, wherein the decompression structure and the communication path are mutually connected. Directly connected at a short distance or connected using a length-adjustable connecting structure, the pressure-sensitive structure can be installed freely at a desired position, or characterized in that it can freely move the pressure-reducing structure once installed.

In addition, the horizontal stop working process to stop the gulting finish surface horizontally by using the upper surface itself after the gulting, remnant layer, gravel layer, a rock layer or a rock layer; A drainage space forming step for allowing groundwater to flow over or below the finishing surface after the horizontal stop working process; A drainage arrangement step of arranging drainage in the drainage space; A concrete placing step of forming a concrete layer by pouring mortar to a predetermined height on the finishing surface and the drainage space while forming a communication path for connecting with the drainage material; A decompression structure connecting process of disposing a decompression structure including an upward extension path and a downward extension path on a concrete layer, and interconnecting an upper end of the communication path with an upper extension path of the decompression structure; And a drainage path connecting step of connecting the downward extension path of the decompression structure to the sump or the trench connected to the sump or the main drainage path, wherein the decompression structure and the communication path are mutually connected. Directly connected at a short distance or connected using a length-adjustable connecting structure, the pressure-sensitive structure can be installed freely at a desired position, or characterized in that it can freely move the pressure-reducing structure once installed.

In addition, the horizontal stop working process to stop the gulting finish surface horizontally by using the upper surface itself after the gulting, the remaining soil layer, the gravel layer, the rock layer or the rock layer; A drainage space forming process for a drainage function on an upper portion or a lower portion of the finishing surface passing through the horizontal stop working process; A concrete placing step of forming a concrete layer by pouring mortar to a predetermined height on the finishing surface and the drainage space; A communication path forming step of forming a communication path in a predetermined portion of the concrete layer and allowing the communication path to communicate with the drainage space; A decompression structure connecting process of disposing a decompression structure including an upward extension path and a downward extension path on a concrete layer, and interconnecting an upper end of the communication path with an upper extension path of the decompression structure; And a drainage path connecting step of connecting the downward extension path of the decompression structure to the sump or the trench connected to the sump or the main drainage path, wherein the decompression structure and the communication path are mutually connected. Directly connected at a short distance or connected using a length-adjustable connecting structure, the pressure-sensitive structure can be installed freely at a desired position, or characterized in that it can freely move the pressure-reducing structure once installed.

In addition, the horizontal stop working process to stop the gulting finish surface horizontally by using the upper surface itself after the gulting, remnant layer, gravel layer, a rock layer or a rock layer; A drainage space forming step for allowing groundwater to flow over or below the finishing surface after the horizontal stop working process; A drainage arrangement step of arranging drainage in the drainage space; A concrete placing step of forming a concrete layer by pouring mortar to a predetermined height on the finishing surface and the drain; A communication path forming step of forming a communication path in a predetermined portion of the concrete layer and allowing the communication path to communicate with the drain material; A decompression structure connecting process of disposing a decompression structure including an upward extension path and a downward extension path on a concrete layer, and interconnecting an upper end of the communication path with an upper extension path of the decompression structure; And a drainage path connecting step of connecting the downward extension path of the decompression structure to the sump or the trench connected to the sump or the main drainage path, wherein the decompression structure and the communication path are mutually connected. Directly connected at a short distance or connected using a length-adjustable connecting structure, the pressure-sensitive structure can be installed freely at a desired position, or characterized in that it can freely move the pressure-reducing structure once installed.

The drainage material is drainage form, steel pipe, steel pipe, stainless steel pipe, drain plate, drain board, drain mat, square pipe, round pipe, perforated pipe, non-pipe, PE pipe, PVC pipe, geotextile, vinyl, bundle pipe, earth soil It is characterized in that one of the sand, gravel or the bark.

In the empty space of the drainage space, steel pipe, steel pipe, stainless steel pipe, drain board, drain board, drain mat, square pipe, round pipe, perforated pipe, non-pipe, PE pipe, PVC pipe, geotextile, vinyl, bundle pipe, earth soil Characterized in that any one of the sand, gravel or the barrel is filled.

The connector is characterized in that it comprises a tubular form.

It characterized in that it further comprises an upper concrete placing step of forming a mortar on the concrete layer to a predetermined height to form an upper concrete layer.

The pressure reducing structure may be installed in the wall or the pillar before or after the upper concrete layer is formed, or installed to be fixed near the wall or the pillar.

The communication path: drainage die, stainless steel pipe, steel pipe, drain board, drain board, drain mat, square pipe, round pipe, pipe, perforated pipe, non-pipe, geotextile, vinyl, bundle pipe, PE pipe, PVC pipe, bundle It is characterized by being formed by any one of the tubes.

The communication passage is characterized in that formed by the drain.

The decompression structure is characterized in that the upper extension path is wrapped by the lower extension path, the upper extension path and the lower extension path is separated by a split surface, it is connected to each other at the upper end.

The decompression structure is characterized in that the downwardly extending passage is surrounded by the upwardly extending passage, the upper extension passage and the downwardly extending passage are separated by a split surface, and are interconnected at an upper end portion.

The decompression structure is characterized in that the upper extension and the lower extension is interconnected at the upper end in the form of a tube.

It is characterized in that the water supply material for preventing the leakage around the decompression structure.

In addition, the pressure reduction drainage system for maintaining an appropriate water pressure of the ground water generated in the bottom of the underground building structure, comprising a pressure reduction structure and a connection structure, the pressure reduction structure comprises: an inlet through which the groundwater flows; An upward extension path through which the groundwater obtained through the inlet is raised while raising the water level; A downward extension passage communicating with each other at the upper extension passage and the upper end portion; Dividing surface for distinguishing the upward extension path and the downward extension path; And an outlet through which the groundwater flowing into the downward extension path is discharged, wherein the connection structure includes: a length and a direction, connected to the inlet of the decompression structure, to be connected to a drainage space, a drain, or a connector. It is characterized by.

The depressurizing structure includes: the downwardly extending passage surrounds the upper extension passage and the upwardly extending passage is located inside the downwardly extending passage, and the outlet opening is formed in the outer housing of the downwardly extending passage, the upwardly extending portion The divided surface surrounding the outside of the furnace is characterized in that only connected to the inlet.

The depressurizing structure includes: the upward extension path is wrapped around the downward extension path and the downward extension path is located inside the upward extension path, the inlet is formed in the outer housing of the upward extension path, the downward extension The divided surface surrounding the outside of the furnace is characterized in that only connected to the outlet.

The decompression structure: the upper end of the upward extension path and the lower extension path is divided by the divided surface, the inlet is formed below the upper extension road, the discharge port is formed below the downward extension road It is characterized by being.

Hereinafter, with reference to an embodiment of the configuration of the present invention shown in the accompanying drawings, it will be described in detail the configuration of the present invention.

3 is a view for illustrating various applications of the pressure-sensitive structure of the present invention. Referring to FIG. 3, various types of drainage spaces 50 and drainage material 40 are formed and disposed on the upper and lower sides of the gulto finish surface 2. The drainage space 50 may be a space corresponding to a minute gap G formed between the gulto finish surface 2 and the discarded concrete layer 4 with a vinyl, a nonwoven fabric (not shown) interposed therebetween, (c) As shown in (d), it may be a space formed by digging a predetermined depth below the gulto finish surface 2. Alternatively, it may be formed in the discarded concrete layer (4) when casting concrete by using drainage dies, steel pipes, steel pipes, pipes, panels, etc., and may include steel pipes, wood pipes, stainless steel pipes, synthetic resin pipes, perforated pipes, and uncoated pipes. , Drain pipes, drain boards, drain mats, drain plates, PE pipes, PVC pipes, geotextiles, PE film, vinyl and drainage material may be arranged to ensure the space therein. Alternatively, permeable sand, scum, rubble, gravel, concrete aggregates, etc. may be connected to form a layer in the drainage space to form a flow path, which may be used as a drainage material. In addition, in the drainage space 50, the nonwoven fabric 52 may be laid, and the gravel 54 may be filled.

Drainage 40 and the drainage space 50 is connected to the connector 30, the connector 30 is formed to have a predetermined height upwards, the interior is in communication with the drainage 40 or connected to the lower end of the connector 30 or The drainage space 50 is connected to the upper end opening of the connector 30.

Before pouring discarded concrete, the drainage 40 or drainage space 50 and the connector 30 are first connected. Concrete is poured in the state in which the connector 30 is connected to form the discarded concrete layer 4. At this time, the opening of the upper end of the connector 30 is exposed to the upper part of the discarded concrete layer 4. When the discarded concrete 4 is hardened, the decompression structure 10 is disposed at the upper desired position, and the connection structure 20 is connected between the upper end opening of the connector 30 and the decompression structure 10.

The connecting structure 20 is a tubular device capable of adjusting the length and direction, such as a tube, a hose, and the like. Since the connection structure 20 is located above the discarded concrete layer 4, the connection structure 20 may be installed, replaced, or modified until the bottom concrete 6 is poured on the upper portion thereof. That is, the position of the decompression structure 10 can be changed freely by introducing a separate fluid or replaceable connection structure 20.

Referring to (a), the lower end of the connector 30 is in communication with the microcavity between the gulting finish surface 2 and the discarded concrete layer 4. When the groundwater flowing in the micro drainage space is generated with a certain upward hydraulic pressure, the water level rises through the connector 30, passes through the connecting structure 20, and extends upwardly and downwardly through the pressure reducing structure 10 and the downwardly extending passage 14. Pass through to the sump (not shown) or the main drain (not shown). At this time, only the connector 30 is fixed to the discarded concrete layer 4, and the decompression structure 10 is freely moved back and forth, left and right by the connection structure 20. Therefore, even when the position of the first pressure reducing structure 10 has to be corrected, the connector 30 may be easily moved by only changing the length and the direction of the connecting structure 20 while leaving the connector 30 intact. do. The decompression structure 10 and the connection structure 20 and the sump (not shown) flowing to the main drainage side are finally fixed and fixed in the interior while placing the bottom concrete when the position is corrected.

Referring to (b), it shows an embodiment in which the connector 30 is connected to the drainage 40 located on the gulto finish surface (2). Drainage 40 is generally disposed on the gulto finish surface 2, but in some cases may be disposed after digging a predetermined depth below the gulto finish surface (2). Drainage 40 serves as a passage for the groundwater flow, steel pipe, wood pipe, stainless steel pipe, synthetic resin pipe, perforated pipe, non-pipe, bundle pipe, drain board, drain mat, drain plate, PE pipe, PVC pipe Various means such as geotextile, PE film, vinyl and the like can be used. Alternatively, a drainage path may be formed in the discarded concrete layer 4 by formwork instead of the drainage 40, so as to be connected to the connector 30. Alternatively, it is also possible to form drainage so that groundwater flows through a long passage through which permeable sand, scum, rubble, gravel, concrete aggregate, etc. form a layer.

Referring to (c), the drainage space 50 is formed by digging to a predetermined depth in the gulto finish surface 2, and the non-woven fabric 52 is laid on the outer surface to prevent foreign matter from penetrating, and the permeable gravel therein. (54) It is also applicable to the method of forming drainage by filling with sand, buckles, scum, concrete aggregates, and the like. At this time, the lower end of the connector 30 is located in communication with the drainage space (50). The groundwater penetrated into the drainage space 50 is moved toward the decompression structure 10 through the through hole at the lower end of the connector 30 according to the generation of the upstream pressure. Referring to (d), the drainage 40 in a tubular shape is placed in the drainage space 50 in the same manner, and the drainage 40 is connected to the connector 30.

In some cases, the connector 30 may be omitted. That is, after the drainage material 40 is bent upward and extended to have a predetermined height, the casting concrete 4 is poured, and the end of the drainage material 40 exposed upward of the discarding concrete 4 and the connecting structure 20. You can also connect At this time, a part of the drainage material 40 is located in the communication path (not shown) to communicate while buried in the discarded concrete (4).

That is, a passage formed in the discarded concrete layer 4 while wrapping the drainage material 40 is called a communication path, and in some cases, the drainage material 40 is not lifted to the upper portion of the discarded concrete 4 without being lifted up to the upper part of the discarded concrete 4. , Stainless steel pipes, pipes, perforated pipes, non-pipes, PE pipes, PVC pipes, vinyl, geotextiles, etc., can be embedded when casting concrete (4) to form a hollow communication path, drainage space (50) or drainage ( 40 is also possible to be seen to be opened from the upper side of the discarded concrete (4) through the communication path. The drainage space 50 or the drainage 40 may be connected to the connection structure 20 with a communication path therebetween to configure the above.

Further, after arranging and forming the drainage material 40 or the drainage space 50 and placing the discarded concrete 4, a hole (not shown) may be formed by drilling a hole in the discarded concrete 4 at a predetermined position. have. That is, even after casting the discarded concrete 4, a communication path (not shown) may be formed at a portion where the drainage material 40 or the drainage space 50 is located, and the connection structure 20 may be connected to the communication path. Do.

In addition, when concrete is placed on the basement floor, it is usually poured in the order of discarded concrete, floor concrete, and pressed concrete. Groundwater is collected from the lower part of the discarded concrete, and the decompression structure is generally placed on the upper side of the discarded concrete. . However, the pressure reducing structure may be disposed on the upper side of the floor concrete, and the connector, the communication path, and the like may pass through the discarded concrete and the floor concrete. When the concrete layer according to the present invention corresponds to the discarded concrete layer, the upper concrete layer means a bottom concrete layer or a pressed concrete layer, and when the concrete layer corresponds to the discarded concrete layer and the bottom concrete layer, the upper concrete layer is pressed concrete Will mean layers. That is, irrespective of the name, if it is located above the drainage space, the location of the drainage material and the concrete layer, it falls within the scope of the claims.

4 is a view showing a cross-sectional structure of the pressure-sensitive structure of the present invention. Referring to FIG. 4, the decompression structure 10 of the cylindrical housing 16 structure includes an upward extension path 12 and a downward extension path 14 as essential components, and the upward extension path 12 includes an inlet 12a. The downward extension path 14 is connected with the outlet 14a.

The inlet 12a is connected to the connecting structure 20 or directly connected to the connector 30. The groundwater introduced into the inlet 12a rises along the upward extension path 12 and extends downward from the upper end. It is discharged to the outlet 14a while being passed to the furnace 14.

The decompression structure 10 is in the form of a double tube, and as shown in (a), the upwardly extending path 12 may be located inside, and the downwardly extending path 14 may be located outside, and vice versa, such as (b). It may be. The path is divided by the divided surfaces 12b and 14b between the upwardly extending path 12 and the downwardly extending path 14.

5 is a view for showing the three-dimensional structure of the pressure-sensitive structure of the present invention. Referring to FIG. 5, the inlet 12a is connected to the upper end opening of the connector 30 directly or by the connecting structure 20, and the groundwater passing through the decompression structure 10 is collected through the outlet 14a. It is discharged to the main drain. (a) is a view of the decompression structure 10 having the structure in which the upwardly extending passage 12 is located inside and the downwardly extending passage 14 is located outside, and (b) is the structure in which the upwardly extending passage 12 is located outside.

6 is a view for illustrating various applications of the pressure-sensitive structure of the present invention. Referring to FIG. 6, (a) shows a state in which a communication path 32 is formed in the discarded concrete layer 4, and the pressure-sensitive structure 10 is connected to the drainage material 40 through the communication path 32. . In some cases, as shown in (b), the communication path 32 may be formed somewhat larger, and the pressure-sensitive structure 10 may be partially inserted into the communication path 32.

(c) is a diagram showing an embodiment in which the pressure-sensitive structure 10 is located above the bottom concrete layer 6. After the cast concrete 4 is poured and the bottom concrete 6 is poured on the upper surface thereof, the pressure-sensitive structure 10 can be placed on the upper side thereof. At this time, the connector 30 or the communication path is disposed and formed in a long shape so as to pass through both the discarded concrete layer 4 and the bottom concrete layer 6.

(d) is a figure which shows what comprised the shape of the pressure reduction structure 10 in U-shaped tubular form. The upward extension path 12 and the downward extension path 14 are connected to each other at the upper end, and the flow path may be configured to go up and down by a predetermined height.

On the other hand, although not shown in the drawing, it is also possible to install the pressure-sensitive structure in its position so as to be installed inside the wall or the pillar. In some cases, it is preferable to arrange a large number of water repellent materials to prevent inundation and leakage around the pressure reducing structure so as to prevent water from leaking to the side of the pressure reducing structure by upward pressure.

In some cases, the pressure-sensitive structure 10 may be disposed on the bottom concrete layer 6, and then fixed with other fixing members without placing a separate pressed concrete layer (not shown). Alternatively, the decompression structure 10 may be positioned on the wall or the pillar, such that the decompression structure is located inside the wall or the pillar, or a part of the decompression structure may be fixed to the wall or the pillar. Alternatively, it may be located near a wall or column to be fixed by connecting to the wall or column.

Referring to the construction process according to the present invention, first to excavate the basement layer after the excavation work, and then stop the horizontal finish after the excavation work horizontally, at this time may form additional layers, gravel layer, sand layer and the like.

The upper or lower side of the finishing surface is laid with vinyl, geotextile, formwork, pipes, or drainage to form a separate drainage space, and the connector is connected to the drainage end.

With the connector connected, the cast concrete is cast to a certain height, where the drainage space, drain material, and finish surface are all covered by concrete, and the top opening of the connector is exposed over the cast concrete layer.

Then, before placing the floor concrete, the pressure reducing structure is disposed at a desired position, and the connector (or communication path) and the pressure reducing structure are connected through the connecting structure. At this time, it is possible to adjust the length, the direction of the connection structure according to the position of the decompression structure to be arranged in various positions.

On the other hand, if it is necessary to change the position of the decompression structure before placing the floor concrete, it is possible to remove the connection structure and replace it with another one, or change the direction of the flexible connection structure so that the position of the decompression structure can be newly selected. . After this, the bottom concrete is poured, and the pressed concrete is poured again on the top surface of the bottom concrete. In some cases, it is also possible to arrange the pressure-sensitive structure at the wall or column position, and when the wall or column is placed, all or part thereof may be embedded together. Alternatively, the pressure reducing structure may be fixed on the bottom concrete layer without placing the pressed concrete, or the pressure reducing structure may be fixed on the pressed concrete layer.

According to the construction method and system of the present invention, even after the formation of the discarded concrete layer, it is possible to easily change the position of the decompression structure for the decompression drainage for each basin, so that the decompression drainage system for each basin can be quickly and easily installed. It has an effect.

In addition, the present invention has the effect of further improving the pressure reduction drainage performance by enabling the precise positioning of the decompression structure at the newly measured decompression request position in the middle of casting the concrete.

In addition, the present invention is to prevent the ground subsidence by inhibiting excessive groundwater discharge before reaching a certain water pressure for each basin by the pressure-sensitive structure, and has the effect of preventing the backflow of the discharged groundwater.

In addition, the present invention can reduce the number of water collection wells by decompressing the groundwater drained by each basin to one side, by using a main drainage, such as a trench formed in the bottom concrete, to reduce the air by simplifying the configuration, It saves material cost and construction cost, and it is semi-permanent without any separate operation cost, operation, and supervision, so it is easy to drain and easy to manage.

Claims (23)

In the method of constructing a decompression drainage system to maintain the proper water pressure of the groundwater generated in the bottom of the basement building structure, A horizontal stop working step of stopping the oyster finish surface to be horizontal by using the upper surface itself, the remaining soil layer, the gravel layer, the bagging layer or the rock layer after the gulting; A drainage space forming process for a drainage function on an upper portion or a lower portion of the finishing surface passing through the horizontal stop working process; A drain end forming step of connecting the connector having a predetermined height to the drain space; A concrete placing step of forming a concrete layer by pouring mortar to a predetermined height on the finishing surface and the drainage space while allowing the upper end of the connector to be exposed to the outside; A pressure reducing structure connecting process of disposing a pressure reducing structure including an upper extension path and a lower extension path on a concrete layer, and interconnecting an upper end of the connector and an upper extension path of the pressure reducing structure; And And a drainage path connecting step of connecting the downward extension path of the decompression structure to a sump or a trench connected to the sump or a main drain. In the decompression structure connection process, the decompression structure and the connector are directly connected to each other or connected using a connection structure capable of adjusting length, A method for constructing a reduced pressure drainage system capable of freely installing the decompression structure at a desired position or allowing the mobile decompression structure to be freely moved once installed. In the method of constructing a decompression drainage system to maintain the proper water pressure of the groundwater generated in the bottom of the basement building structure, A horizontal stop working step of stopping the oyster finish surface to be horizontal by using the upper surface itself, the remaining soil layer, the gravel layer, the bagging layer or the rock layer after the gulting; A drainage space forming step for allowing groundwater to flow over or below the finishing surface after the horizontal stop working process; A drainage arrangement step of arranging drainage in the drainage space; A drain end forming step of connecting the connector having a predetermined height to the drain; A concrete placing step of forming a concrete layer by pouring mortar to a predetermined height on the finishing surface and the drainage space while allowing the upper end of the connector to be exposed to the outside; A pressure reducing structure connecting process of disposing a pressure reducing structure including an upper extension path and a lower extension path on a concrete layer, and interconnecting an upper end of the connector and an upper extension path of the pressure reducing structure; And And a drainage path connecting step of connecting the downward extension path of the decompression structure to a sump or a trench connected to the sump or a main drain. In the decompression structure connection process, the decompression structure and the connector are directly connected to each other or connected using a connection structure capable of adjusting length, A method for constructing a reduced pressure drainage system capable of freely installing the decompression structure at a desired position or allowing the mobile decompression structure to be freely moved once installed. In the method of constructing a decompression drainage system to maintain the proper water pressure of the groundwater generated in the bottom of the basement building structure, A horizontal stop working step of stopping the oyster finish surface to be horizontal by using the upper surface itself, the remaining soil layer, the gravel layer, the bagging layer or the rock layer after the gulting; A drainage space forming process for a drainage function on an upper portion or a lower portion of the finishing surface passing through the horizontal stop working process; A concrete placing step of forming a concrete layer by pouring mortar to a predetermined height on the finishing surface and the drainage space while forming a communication path for connecting with the drainage space; A decompression structure connecting process of disposing a decompression structure including an upward extension path and a downward extension path on a concrete layer, and interconnecting an upper end of the communication path with an upper extension path of the decompression structure; And And a drainage path connecting step of connecting the downward extension path of the decompression structure to a sump or a trench connected to the sump or a main drain. In the decompression structure connection process, the decompression structure and the communication path are directly connected to each other at short distances or are connected using a connection structure capable of adjusting length. A method for constructing a reduced pressure drainage system capable of freely installing the decompression structure at a desired position or allowing the mobile decompression structure to be freely moved once installed. In the method of constructing a decompression drainage system to maintain the proper water pressure of the groundwater generated in the bottom of the basement building structure, A horizontal stop working step of stopping the oyster finish surface to be horizontal by using the upper surface itself, the remaining soil layer, the gravel layer, the bagging layer or the rock layer after the gulting; A drainage space forming step for allowing groundwater to flow over or below the finishing surface after the horizontal stop working process; A drainage arrangement step of arranging drainage in the drainage space; A concrete placing step of forming a concrete layer by pouring mortar to a predetermined height on the finishing surface and the drainage space while forming a communication path for connecting with the drainage material; A decompression structure connection process of disposing a decompression structure including an upward extension path and a downward extension path on a concrete layer and interconnecting an upper end of the communication path with an upper extension path of the decompression structure; And And a drainage path connecting step of connecting the downward extension path of the decompression structure to a sump or a trench connected to the sump or a main drain. In the decompression structure connection process, the decompression structure and the communication path are directly connected to each other at short distances or are connected using a connection structure capable of adjusting length. A method for constructing a reduced pressure drainage system capable of freely installing the decompression structure at a desired position or allowing the mobile decompression structure to be freely moved once installed. In the method of constructing a decompression drainage system to maintain the proper water pressure of the groundwater generated in the bottom of the basement building structure, A horizontal stop working step of stopping the oyster finish surface to be horizontal by using the upper surface itself, the remaining soil layer, the gravel layer, the bagging layer or the rock layer after the gulting; A drainage space forming process for a drainage function on an upper portion or a lower portion of the finishing surface passing through the horizontal stop working process; A concrete placing step of forming a concrete layer by pouring mortar to a predetermined height on the finishing surface and the drainage space; A communication path forming step of forming a communication path in a predetermined portion of the concrete layer and allowing the communication path to communicate with the drainage space; A decompression structure connecting process of disposing a decompression structure including an upward extension path and a downward extension path on a concrete layer, and interconnecting an upper end of the communication path with an upper extension path of the decompression structure; And And a drainage path connecting step of connecting the downward extension path of the decompression structure to a sump or a trench connected to the sump or a main drain. In the decompression structure connection process, the decompression structure and the communication path are directly connected to each other at short distances or are connected using a connection structure capable of adjusting length. A method for constructing a reduced pressure drainage system capable of freely installing the decompression structure at a desired position or allowing the mobile decompression structure to be freely moved once installed. In the method of constructing a decompression drainage system to maintain the proper water pressure of the groundwater generated in the bottom of the basement building structure, A horizontal stop working step of stopping the oyster finish surface to be horizontal by using the upper surface itself, the remaining soil layer, the gravel layer, the bagging layer or the rock layer after the gulting; A drainage space forming step for allowing groundwater to flow over or below the finishing surface after the horizontal stop working process; A drainage arrangement step of arranging drainage in the drainage space; A concrete placing step of forming a concrete layer by pouring mortar to a predetermined height on the finishing surface and the drain; A communication path forming step of forming a communication path in a predetermined portion of the concrete layer and allowing the communication path to communicate with the drain material; A decompression structure connecting process of disposing a decompression structure including an upward extension path and a downward extension path on a concrete layer, and interconnecting an upper end of the communication path with an upper extension path of the decompression structure; And And a drainage path connecting step of connecting the downward extension path of the decompression structure to a sump or a trench connected to the sump or a main drain. In the decompression structure connection process, the decompression structure and the communication path are directly connected to each other at short distances or are connected using a connection structure capable of adjusting length. A method for constructing a reduced pressure drainage system capable of freely installing the decompression structure at a desired position or allowing the mobile decompression structure to be freely moved once installed. The connector according to claim 1 or 2, wherein the connector is: A reduced pressure drainage system capable of moving installation, characterized in that it comprises a tubular form. The method according to claim 2 or 4 or 6, The drainage material is drainage form, steel pipe, stainless steel pipe, concrete pipe, drain board, drain board, drain mat, square pipe, round pipe, perforated pipe, non-pipe, PE pipe, PVC pipe, synthetic resin pipe, wood pipe, geotextile, vinyl , Synthetic resin film, bundle tube, concrete aggregate, residual soil, sand, gravel, or any one of the construction of a mobile decompression drainage system can be installed. The method according to any one of claims 1 to 6, The empty space of the drainage space drainage plate, drain board, drain mat, square pipe, round pipe, perforated pipe, non-pipe, PE pipe, PVC pipe, concrete pipe, synthetic resin pipe, steel pipe, stainless steel pipe, wood pipe, geotextile, Method of constructing a decompression drainage system capable of moving installation, characterized in that any one of the vinyl, plastic film, bundle tube, concrete aggregate, earth soil, sand, gravel or bag is filled. The method according to any one of claims 1 to 6, The method of claim 1, further comprising an upper concrete placing step of forming an upper concrete layer by placing mortar on a predetermined height on the concrete layer. The method according to any one of claims 1 to 6, Installing the decompression structure in whole or in part in the wall or pillar, or installed to be fixed in the vicinity of the wall or column, the mobile installation possible pressure reduction drainage system construction method. The method of claim 10, The decompression structure construction method of the mobile decompression drainage system, characterized in that after the upper concrete layer is formed, it is installed in whole or in part in the wall or pillar, or fixed to the vicinity of the wall or pillar. The method of claim 10, The decompression structure is installed in whole or in part in the wall or pillar, or after being installed to be fixed in the vicinity of the wall or the pillar, the construction of the mobile installation possible decompression drainage system, characterized in that to form the upper concrete layer by pouring the concrete mortar Way. The method of claim 3 or 4, wherein the communication path: Formed by any one of drainage formwork, steel tube, stainless steel tube, tube, square tube, round tube, perforated tube, non-perforated tube, geotextile, wood tube, concrete tube, synthetic resin tube, vinyl, bundle tube, PE tube, PVC tube Method for constructing a reduced pressure drainage system capable of moving installation, characterized in that. The method of claim 4, wherein the communication path: Method for constructing a reduced pressure drainage system capable of moving installation, characterized in that formed by the drainage. The method according to any one of claims 1 to 6, The decompression structure is the upper extension is surrounded by the lower extension, The upward extension path and the downward extension path is separated by a split surface, the mobile installation method of the decompression drainage system can be installed, characterized in that interconnected at the upper end. The method according to any one of claims 1 to 6, The decompression structure is the downward extension is wrapped by the upward extension, The upward extension path and the downward extension path is separated by a split surface, the mobile installation method of the decompression drainage system can be installed, characterized in that interconnected at the upper end. The method according to any one of claims 1 to 6, The decompression structure is a movable installation of the decompression drainage system, characterized in that the upper extension path and the lower extension path are connected to each other at the upper end in a tubular form. The method according to any one of claims 1 to 6, A method of constructing a decompression drainage system capable of moving installation, characterized in that the water supply for preventing leakage around the decompression structure. In the decompression drainage system for maintaining the proper water pressure of the groundwater generated under the floor of the underground building structure, Including a decompression structure and a connecting structure, The decompression structure is: Inlet through which groundwater is introduced; An upward extension path through which the groundwater obtained through the inlet is raised while raising the water level; A downward extension passage communicating with each other at the upper extension passage and the upper end portion; Dividing surface for distinguishing the upward extension path and the downward extension path; And Includes; the discharge port for discharging the ground water flowing to the downward extension road, The connecting structure is: You can adjust the length and direction, Is connected to the inlet of the decompression structure, the decompression drainage system capable of moving installation, characterized in that connected to the drainage space, drainage or connector. The pressure reducing structure of claim 20 wherein: The downwardly extending passage surrounds the circumference of the upwardly extending passage The upward extension path is located inside the downward extension path, The outlet is formed in the outer housing of the downwardly extending passage, The dividing surface surrounding the outer side of the upward passage is connected to the inlet only, the decompression drainage system capable of moving installation. The pressure reducing structure of claim 20 wherein: The upward extension path surrounds the circumference of the downward extension path The downwardly extending path is located inside the upwardly extending path, The inlet is formed in the outer housing of the upward extension path, The dividing surface surrounding the outer side of the downward extension path is movable decompression drainage system, characterized in that connected to only the outlet. The pressure reducing structure of claim 20 wherein: The upper end of the upward extension path and the lower extension path is connected and divided by the divided surface, The inlet is formed below the upward extension path, The pressure reduction drainage system capable of moving installation, characterized in that the discharge port is formed below the downward extension road.

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