JP3241611U - concrete pipe pile - Google Patents

Abstract

A concrete pipe pile that protects the safe operation of a photovoltaic power generation project without being affected by frost heaving forces even in cold winter. A concrete pipe pile (100) includes a pile body and an anti-freezing material (30). The pile bodies are arranged in order from the bottom to the top. A third support segment 15 is inserted into the soil below the freeze line L, the interior of the second support segment contains the soil above the freeze line, and the antifreeze material surrounds the second support segment. coated and filled inside the third support segment. By filling the outer periphery of the second support segment and the interior of the third support segment with the antifreeze material, the erosion of the pipe pile by rainwater and groundwater is reduced. [Selection drawing] Fig. 2

Description

The present invention relates to the technical field of photovoltaic power generation, in particular to concrete pipe piles.

The construction of photovoltaic power generation projects requires a large amount of concrete pipe piles, which are hollow inside and open at both ends. As shown in Fig. 1, the upper end of the conventional concrete pipe pile is easy for rainwater to enter. Filled with soil, groundwater at the bottom of the concrete pipe pile tends to permeate into the concrete pipe pile. , affect solar power projects.

The main object of the present invention is to provide a concrete pipe pile to prevent cracking or corrosion due to frost heaving in cold winter.

To achieve the above objectives, a concrete pipe pile according to the present invention is provided. The concrete pipe pile concerned
A pile body comprising a first support segment, a second support segment and a third support segment arranged in sequence and internally communicating with each other, wherein the first support segment is inserted into the soil below the freezing line. a pile body inside which contains soil below the freeze line, the second support segment inside which contains soil above the freeze line;
an anti-freeze material covering the periphery of the second support segment and filling the interior of the third support segment.

In one embodiment, the concrete pipe pile further includes a protection plate fitted to one end of the third support segment adjacent to the second support segment, the protection plate covering the circumference of the second support segment. Reinforcing anti-freeze material.

In one embodiment, the protective plate comprises a first reinforcing plate and a second reinforcing plate, the first reinforcing plate and the second reinforcing plate are detachably connected, and both are spliced together to form the third reinforcing plate. It fits over the support segment.

In one embodiment, the concrete pipe pile further includes a pile plug provided at one end of the third support segment remote from the second support segment to block the third support segment.

In one embodiment, the concrete pipe pile further comprises a filling unit for filling the anti-freeze material around the second support segment and/or filling the interior of the third support segment with the anti-freeze material. include.

In one embodiment, the filling unit includes a first filling tube for filling the cryoprotective material inside the third support segment;
and/or the filling unit includes a second filling tube for filling the anti-freeze material around the second support segment.

In one embodiment, the filling unit further comprises a flow controller connected to the first filling tube to control the filling speed of the first filling tube and/or to control the flow rate of the first filling tube. A device is connected to the second fill tube to control the fill rate of the second fill tube.

In one embodiment, the piling plug is provided with a filling hole, the filling hole communicates the inside and the outside of the third support segment, and the first filling pipe has one end inserted into the filling hole.

In one embodiment, the first fill tube is connected to the post plug by a union, and the union is removably connected to the first fill tube.

In one embodiment, the anti-freeze material has a waterproof function and/or the anti-freeze material has a heat retention function.

In the technical solution of the present invention, anti-freezing material is filled in the outer circumference of the second support segment and the inside of the third support segment to reduce the erosion of the pipe pile by rainwater and groundwater. The pile body is deeply inserted into the ground to harden the pile body into the soil, the first support segment being positioned in the soil below the freeze line, and the second support segment being positioned in the soil above the freeze line. And at least a part of the inside is filled with soil above the freezing line, the soil above the freezing line is frozen, and the frozen soil gives a frost heaving force to the pile body. Since the second support segment cracks or corrodes, and the upper end of the third support segment is open, rainwater enters the third support segment from the upper end of the third support segment, and the rain water enters the third support segment from the upper end of the third support segment. Water is susceptible to freezing, frozen ice creates a frost heaving force against said third support segment, said third support segment cracks or corrodes, foundation pits around said second support segment and freezes. By filling the inside of the foundation pit with an anti-freeze material, the second support segment is prevented from cracking due to frost climbing, and by filling the inside of the third support segment with an anti-freeze material, the third support segment avoid cracking or corrosion due to frost heaving. Even in cold winter, the concrete pipe pile of the present invention is not affected by frost heave, which protects the safe operation of the solar power project.

In order to describe the embodiments of the present invention or the technical solutions of the prior art more clearly, the drawings required for the description of the embodiments or the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and persons skilled in the art can obtain other drawings based on the structure according to these drawings, provided that they do not make an inventive step. can.

1 is a structural schematic diagram of a conventional concrete pipe pile; FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a structural schematic diagram of one embodiment of a concrete pipe pile of the present invention; FIG. 3 is a structural schematic diagram of the pile plug in FIG. 2; FIG. 3 is a structural schematic diagram of a protective plate in FIG. 2;

The realization, functional features and advantages of the present invention are further described in connection with the embodiments and with reference to the drawings.

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. Apparently, the described embodiments are only some embodiments of the present invention rather than all embodiments. Based on the embodiments of the present invention, on the premise that a person skilled in the art does not work to deserve the inventive step, all other embodiments obtained belong to the protection scope of the present invention.

Here, if there is a directional indication (e.g., up, down, left, right, forward, backward, etc.) in an embodiment of the present invention, the directional indication is only for each person in a certain pose (as shown in the drawing). It is interpreted as the relative positional relationship between the members, the movement situation, etc., and when the specific posture is changed, the direction indication is changed accordingly.

In addition, in the present invention, the descriptions of "first", "second", etc. do not indicate or imply their relative importance, or imply the number of technical features indicated, but only It is for description. Thereby, the "first" and "second" defined features may expressly or implicitly include at least one such feature. Also, the meaning of "and/or" in the full text is to include three parallel solutions, for example "A and/or B" includes A solution or B solution, or A and B Including solutions satisfying at the same time. In addition, the technical solutions in each embodiment may be combined with each other, but it is based on what a person skilled in the art can realize. It does not exist and does not belong to the protection scope of the present invention.

A concrete pipe pile 100 according to the present invention is provided.

Referring to FIG. 2, in one embodiment of the present invention, the concrete pipe pile 100 includes a pile body 10 and an anti-freezing material 30, the pile body 10 is cylindrical and arranged in order from bottom to top, including a first support segment 11, a second support segment 13 and a third support segment 15 communicating internally, wherein the first support segment 11, the second support segment 13 and the third support segment 15 are all In a practical project, the first support segment 11 is inserted into the soil below the freeze line L and accommodates the soil below the freeze line L, and the inside of the second support segment 13 is the freeze line L. Containing the soil above, an anti-freeze material 30 surrounds the second support segment 13 and fills the interior of the third support segment 15 .

The anti-freezing material 30 has a waterproof function and/or the anti-freezing material 30 has a heat insulating function, and the anti-freezing material 30 is made of a rubber sponge heat insulating material, a polyethylene heat insulating material or a composite silicate heat insulating material. One or more of them may be selected. Rubber sponge insulation is a closed-cell elastic material, which is soft, flexible, cold-resistant, heat-resistant, flame-retardant, waterproof, low thermal conductivity, vibration-damping, sound-absorbing and other excellent performance, high-quality century-old insulation It is a heat insulating material, polyethylene heat insulating material is manufactured by a special process, its cells are closed cell structure, it has the characteristics of heat insulation, moisture retention, anti-condensation, aging resistance, etc. It is a high-performance energy-saving material. Salt insulation is a new lightweight and efficient high-temperature insulation material, which has the advantages of low thermal conductivity, convenient construction, no irritation and no dust pollution.

Construction steps of the concrete pipe pile 100 are as follows.
S1: Determining pile position points at the construction site based on the design drawing.
S2: Drive the pile body 10 into the soil, and insert the first support segment 11 below the freezing line L of the soil. The driving depth of the first supporting segment 11 is obtained according to the actual situation of the project and the geological survey data. Said third support segment 15 is located above the ground S.
S3: Dig a foundation pit 200 around the bottom surface where the pile body 10 is located. The depth of excavation of the foundation pit 200 is above and below the freeze line L, and the second support segment 13 is located within the foundation pit 200 .
S4: Fill the inside of the second support segment 13 with the antifreeze material 30 so that the outer circumference of the second support segment 13 is covered with the antifreeze material 30, and the antifreeze material 30 is placed in the base pit 200. Fill inside.

The construction order of S2 and S3 may be appropriately adjusted. After the pile position point is determined, a foundation pit 200 is dug in the ground S where the pile position point and its surroundings are located with the pile position point as the axis, and the digging depth of the foundation pit 200 is Above and below the freezing line L, the pile body 10 is driven into the bottom surface of the bottom of the foundation pit 200, the first support segment 11 is inserted below the foundation pit 200, and the second support segment 13 is Located within the foundation pit 200 , the third support segment 15 is partially located within the foundation pit 200 and partially located on the ground S above the foundation pit 200 .

The technical solution of the present invention is to fill the outer periphery of the second support segment 13 and the inside of the third support segment 15 with the anti-freezing material 30 to reduce the erosion of the pile body 10 by rainwater and groundwater. In order to harden the pile body 10 into the ground, the pile body 10 is deeply inserted into the ground S, the first support segment 11 is located in the ground below the freezing line L, and the second support segment 13 is located in the ground below the freezing line L. Located in the soil above L, at least part of the interior is filled with soil above the freezing line L, the soil above the freezing line L is frozen, and the frozen soil gives a frost heaving force to the pile body 10, When the second support segment 13 is affected by the frost heave of the soil, it cracks or corrodes, and the upper end of the third support segment 15 has an open shape, so that rainwater flows from the upper end of the third support segment 15 to the Inside the third support segment 15, in the cold winter, the water is easy to freeze, the frozen ice will generate frost heaving force on the third support segment 15, the third support segment 15 will crack or corrode, and the By digging a foundation pit 200 around the second support segment 13 and filling the inside of the foundation pit 200 with an anti-freezing material 30, the second support segment 13 is prevented from freezing and cracking, and anti-freezing is achieved. Filling the interior of the third support segment 15 with material 30 avoids cracking or corrosion of the third support segment 15 due to frost heaving. The concrete pipe pile 100 of the present invention is not affected by frost heaving force even in cold winter, and protects the safe operation of the photovoltaic power project.

Referring to FIG. 4, based on the above embodiment, in one embodiment, the concrete pipe pile 100 further includes a protection plate 50, the shape of the protection plate 50 is similar to the shape of the upper and lower surfaces of the foundation pit 200. The area of the lower surface of the protective plate 50 is slightly larger than the area of the upper surface of the base pit 200. A through hole is formed in the center of the protective plate 50, and the through hole extends through the upper and lower surfaces of the protective plate 50. The pile body 10 is penetrated through the through-hole, the protection plate 50 is fitted on one end of the third support segment 15 adjacent to the second support segment 13, and the protection plate 50 is An anti-freeze material 30 covering the periphery of the second support segment 13 is reinforced. Specifically, the protection plate 50 is provided at the lower end of the third support segment 15, the protection plate 50 is provided above the foundation pit 200, and is fixed to the ground S above the foundation pit 200, When the foundation pit 200 is shielded and the anti-freeze material 30 is filled into the interior of the foundation pit 200, the protection plate 50 acts to reinforce and compact the anti-freeze material 30, thereby preventing the freezing. Since the anti-freeze material 30 tightly covers the second support segment 13 and further protects the second support segment 13 closely, the anti-freeze material 30 does not tightly wrap the second support segment 13 , the second supporting segment 13 is partially frost-cracked, or the gap between the anti-freezing materials 30 is too large, so as to avoid the occurrence of a situation where the anti-freezing effect is poor.

The foundation pit 200 may be irregular polyhedral, rectangular parallelepiped, conical or cylindrical, preferably the foundation pit 200 is cylindrical, for other shapes of the foundation pit 200, The cylindrical foundation pit 200 can ensure that the anti-freeze effect of the anti-freeze material 30 at different heights of the second support segment 13 is consistent, and the lack of local anti-freeze of the second support segment 13; Alternatively, the insufficient utilization of the internal space of the foundation pit 200 is avoided. Here, the cuboidal base pit 200 and the conical base pit 200 will be described in detail as examples. First, if the minimum thickness of the antifreeze material 30 covering the outer periphery of the second support segment 13 is d, the distance from the side wall of the foundation pit 200 to the second support segment 13 is d or more, If the foundation pit 200 is a rectangular parallelepiped foundation pit 200, the height is the same, and the distance from the side wall of each part of the foundation pit 200 to the second support segment 13 cannot be kept the same, and the foundation If the middle portion of the side wall of the pit 200 to the second support segment 13 is the minimum distance and the distance is d, then the distance from the edge of the side wall of the base pit 200 to the second support segment 13 must be Practically greater than d, ie the antifreeze material 30 close to the edge of the base pit 200 at the side walls of the base pit 200 does not provide a substantial antifreeze effect. When the foundation pit 200 is conical, the distance from the inner wall of the foundation pit 200 on the same generatrix to the second support segment 13 is different at different heights, and the inner wall of the lower end of the foundation pit 200 is different. to the second support segment 13 is the minimum distance, and the distance is d, then the distance from the top inner wall of the foundation pit 200 to the second support segment 13 is necessarily greater than d, and the foundation At the top of pit 200, the antifreeze material 30 adjacent to the sidewalls of the base pit 200 does not provide substantial antifreeze. Both of the above two situations lead to wastage of the anti-freezing material 30, and digging a foundation pit 200 with a larger volume leads to wasted manpower and increased construction time.

Further, the protective plate 50 includes a first reinforcing plate 51 and a second reinforcing plate 53, and the first reinforcing plate 51 is formed with the through holes passing through the upper and lower surfaces of the first reinforcing plate 51, Both the first reinforcing plate 51 and the second reinforcing plate 53 are semi-cylindrical, the first reinforcing plate 51 and the second reinforcing plate 53 are detachably connected, and are joined together. In addition, the first reinforcing plate 51 and the second reinforcing plate 53 are fitted on the lower end of the third support segment 15 to cover the upper side of the foundation pit 200 and both fill the foundation pit 200. The antifreeze material 30 is reinforced and compacted. Since the protective plate 50 is formed to be detachably joined by the first reinforcing plate 51 and the second reinforcing plate 53, the protective plate 50 can be easily removed and filled into the foundation pit 200. Check the condition of the anti-freezing material 30 in the foundation pit 200 to ensure that the anti-freezing effect of the anti-freezing material 30 inside the foundation pit 200 has not expired. The through hole may be further surrounded by the first reinforcing plate 51 and the second reinforcing plate 53, so that the protection plate 50 and the pile body 10 can be assembled and removed more conveniently. be quick.

Referring to FIG. 3 , based on the above embodiment, in another embodiment, the concrete pipe pile 100 further includes a peg 70 , the peg 70 of the third support segment 15 , the second support segment. It is provided at one end remote from segment 13 and closes said third support segment 15 . Specifically, the pile plug 70 is provided at the uppermost end of the third support segment 15 to close the pipe opening at the upper end of the pile body 10 so that the rainwater flows from the pipe mouth at the upper end of the pile body 10 to the pile body. Prevent entry into 10. After rainwater enters the pile body 10 and accumulates in the third support segment 15, the third support segment 15 freezes up and cracks on cold days. In addition, if rainwater enters the third support segment 15, it will affect the anti-freeze performance of the anti-freeze material 30 and reduce the anti-freeze effect of the anti-freeze material 30 on the third support segment 15. The post plug 70 is conical in order to facilitate the filling of the post plug 70 into the opening at the upper end of the third support segment 15, and to improve the tightness of the closure of the post plug 70 to the post plug 70. Second, the pile plug 70 is made of an elastic material, and the pile plug 70 is made of rubber.

Continuing to refer to FIG. 2, the concrete pipe pile 100 further includes a filling unit, which fills the antifreeze material 30 around the second support segment 13 and inside the third support segment 15. . In the construction process, the protective plate 50 is first used to cover the foundation pit 200 , the pile plug 70 is used to close the upper end opening of the third support segment 15 , and the antifreeze material 30 is loaded by the filling unit. is filled inside the foundation pit 200 and inside the third support segment 15, and in the process of filling the antifreeze material 30, the protective plate 50 and the pile plug 70 both have a reinforcing and consolidating effect on the antifreeze material 30. can demonstrate

Here, a filling hole 70a penetrating through the upper and lower surfaces of the pile plug 70 is formed in the intermediate portion thereof, and a filling hole 70a penetrating through the upper and lower surfaces of the protective plate 50 is formed in the protective plate 50 at the same time. The filling hole 70a is opened in the first fixed plate or the second fixed plate, the filling unit includes a first filling pipe 91 and a second filling pipe 93, the outer pipe of the first filling pipe 91 The diameter is the same as the diameter of the filling hole 70a of the pile plug 70, the first filling pipe 91 fills the antifreeze material 30 inside the third support segment 15, and the outer pipe of the second filling pipe 93 The diameter of the filling hole 70 a of the protection plate 50 is the same as that of the filling hole 70 a , and the second filling pipe 93 fills the antifreeze material 30 into the foundation pit 200 . The mouth of the outlet end of the first filling pipe 91 enters the filling hole 70a in the middle part of the pile plug 70, and the first filling pipe 91 passes through the filling hole 70a of the pile plug 70 to the antifreeze material. 30 is filled inside the third support segment 15, the outlet end of the second filling pipe 93 is inserted into the opening filling hole 70a of the protection plate 50, and the second filling pipe 93 is The antifreeze material 30 is filled into the foundation pit 200 through the filling hole 70a of the protection plate 50. As shown in FIG.

The filling unit further comprises a flow controller connected to the first filling tube 91 for controlling the filling speed of the first filling tube 91 and/or the flow controller 2 filling pipe 93, the filling speed of the second filling pipe 93 is controlled, and the flow control device is arranged to control the start and end time of filling of the antifreeze material 30, and the filling speed By controlling the , it is possible to avoid causing a scattering accident due to too early filling or extending the construction time due to too late filling. Since the volume inside the base pit 200 does not match the volume inside the third support segment 15, the filling speed of the anti-freezing material 30 filling the insides of the two is also different. In order to independently adjust the filling speed of the filling tube 91 and the second filling tube 93, in one embodiment, a valve 95 is provided at the inlet end of each of the first filling tube 91 and the second filling tube 93. is provided, the opening and closing of the first filling tube 91 and the second filling tube 93 and the opening size are controlled independently, and the freezing prevention by the first filling tube 91 and the second filling tube 93 The filling speed of material 30 is controlled respectively.

In order to facilitate disassembly and installation of the first filling tube 91, the first filling tube 91 is connected to the peg 70 by a union 97, and the union 97 is detachable from the first filling tube 91. Similarly, a union 97 may be connected between the second filling tube 93 and the protection plate 50 , and the union 97 is detachably connected to the second filling tube 93 .

The above are only preferred embodiments of the present invention and do not limit the scope of the present invention. In the spirit of the present invention, any equivalent structural modification completed using the contents of the specification and drawings of the present invention, or directly/indirectly applied to other related technical fields, shall be within the protection scope of the present invention. falls within.

DESCRIPTION OF SYMBOLS 100...Concrete pipe pile 10...Pile body 11...First support segment 13...Second support segment 15...Third support segment 30...Anti-freezing material 50...Protective plate 51 First reinforcing plate 53 Second reinforcing plate 70 Pile plug 70a Filling hole 91 First filling pipe 93 Second filling pipe 95 Valve 97・・・Union 200 ・・・Foundation pit S ・・・Ground L ・・・Freezing line

Claims (10)

Concrete pipe piles,
A pile body comprising a first support segment, a second support segment and a third support segment arranged in sequence and internally communicating with each other, wherein the first support segment is inserted into the soil below the freeze line, a pile body inside which contains soil below the freeze line, the second support segment inside which contains soil above the freeze line;
and an anti-freezing material that covers the periphery of the second support segment and fills the interior of the third support segment. The concrete pipe pile further includes a protection plate fitted over one end of the third support segment adjacent to the second support segment, the protection plate having an anti-freezing material covering the periphery of the second support segment. The concrete pipe pile according to claim 1, which is reinforced. The protective plate includes a first reinforcing plate and a second reinforcing plate, the first reinforcing plate and the second reinforcing plate are detachably connected, and are spliced together to fit onto the third supporting segment. The concrete pipe pile according to claim 2, characterized in that it is made. 2. The concrete of claim 1, wherein the concrete pipe pile further comprises a pile plug provided at one end of the third support segment remote from the second support segment and blocking the third support segment. pipe pile. The concrete pipe pile further comprises a filling unit that fills the antifreeze material around the second support segment and/or fills the interior of the third support segment with the antifreeze material. The concrete pipe pile according to claim 4. the filling unit includes a first filling tube for filling the antifreeze material inside the third support segment;
6. The concrete pipe pile of claim 5, and/or wherein said filling unit includes a second filling tube for filling said antifreeze material around said second support segment. The filling unit further comprises a flow controller connected to the first filling tube to control the filling speed of the first filling tube and/or the flow controller is connected to the second filling tube. 7. The concrete pipe pile according to claim 6, which is connected to a filling pipe to control the filling speed of said second filling pipe. A filling hole is formed in the pile plug, the filling hole communicates the inside and the outside of the third support segment, and one end of the first filling pipe enters the filling hole. Item 6. The concrete pipe pile according to Item 6. 9. The concrete pipe pile of claim 8, wherein said first fill pipe is connected to said plug by a union, said union being removably connected to said first fill pipe. The concrete pipe pile according to any one of claims 1 to 9, wherein the anti-freezing material has a waterproof function and/or the anti-freezing material has a heat retaining function.

Images