A variable stiffness level load-bearing pile

Abstract

The present application relates to the technical field of foundation pit support, and specifically discloses a variable rigidity horizontal load bearing support pile, which comprises an upper support pile, a lower support pile, an upper variable rigidity assembly, a lower variable rigidity assembly, a mounting ring and a rubber ring, the mounting ring is fixedly connected with the lower support pile and is sleeved on the outer wall of the lower support pile, the rubber ring is fixedly connected with the mounting ring and is located on one side of the mounting ring, and the rubber ring is sleeved on the outer wall of the lower support pile, the lower support pile is screwedly connected with the upper support pile and is located at one end of the upper support pile, the upper variable rigidity assembly is arranged at one end of the upper support pile, and the lower variable rigidity assembly is arranged at one end of the lower support pile. The above structure can change the rigidity of the support pile, and can be disassembled and assembled according to requirements, so that the materials can be used to the maximum extent, the cost can be saved, and the support cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of foundation pit support technology, and in particular to a variable stiffness horizontal load-bearing support pile. Background Technology

[0002] Currently, foundation pit support is a measure to support, reinforce, and protect the sidewalls and surrounding environment of foundation pits in order to ensure the safety of underground structure construction and the surrounding environment. In urban construction projects, foundation pit support engineering is an indispensable part, as it involves the development and utilization of underground space and is also closely related to the safety of ground buildings and the surrounding environment.

[0003] However, in the existing technology, the support stiffness of the foundation pit support piles is constant and the uniform cross-section design will lead to a great waste of building materials, increase the cost of each support pile, and increase the support cost. Summary of the Invention

[0004] The purpose of this invention is to provide a variable stiffness horizontally loaded support pile, which aims to solve the technical problem that the uniform cross-section design in the prior art leads to a great waste of building materials, increases the cost of each support pile, and increases the support cost.

[0005] To achieve the above objectives, the present invention employs a variable stiffness horizontal load-bearing retaining pile, comprising an upper retaining pile, a lower retaining pile, an upper variable stiffness assembly, a lower variable stiffness assembly, an mounting ring, and a rubber ring. The mounting ring is fixedly connected to the lower retaining pile and is sleeved on the outer wall of the lower retaining pile. The rubber ring is fixedly connected to the mounting ring and is located on one side of the mounting ring, and the rubber ring is sleeved on the outer wall of the lower retaining pile. The lower retaining pile is threadedly connected to the upper retaining pile and is located at one end of the upper retaining pile. The upper variable stiffness assembly is disposed at one end of the upper retaining pile, and the lower variable stiffness assembly is disposed at one end of the lower retaining pile.

[0006] The upper stiffening assembly includes an upper stiffening column, an upper stiffening plate, upper stiffening mounting bolts, and upper stiffening springs. The upper stiffening column is threadedly connected to the upper retaining pile, and one end of the upper stiffening column is embedded inside the upper retaining pile. The upper stiffening plate is fixedly connected to the upper stiffening column and is located at one end of the upper stiffening column. There are multiple upper stiffening mounting bolts, each of which passes through the upper stiffening plate and is threadedly connected to the upper retaining pile. There are multiple upper stiffening springs, each of which is sleeved on the outer wall of the corresponding upper stiffening mounting bolt, and each upper stiffening spring is respectively disposed between the upper stiffening plate and the upper retaining pile.

[0007] The lower stiffening assembly includes a first lower stiffening column, a first lower stiffening plate, and a first lower stiffening mounting bolt. The first lower stiffening column is disposed inside the lower retaining pile. The first lower stiffening plate is fixedly connected to the first lower stiffening column and is located at one end of the first lower stiffening column. There are multiple first lower stiffening mounting bolts, each of which passes through the first lower stiffening plate and is threadedly connected to the lower retaining pile.

[0008] The lower stiffening assembly includes a second lower stiffening column, a second lower stiffening plate, a lower stiffening ring, and second lower stiffening mounting bolts. The second lower stiffening column is disposed inside the lower retaining pile. The second lower stiffening plate is fixedly connected to the second lower stiffening column and is located at one end of the second lower stiffening column. The lower stiffening ring is fixedly connected to the second lower stiffening plate and is located on one side of the second lower stiffening plate. There are multiple second lower stiffening mounting bolts, each of which passes through the second lower stiffening plate and is threadedly connected to the lower retaining pile.

[0009] The lower variable stiffness assembly further includes a pile guard sleeve, which is threadedly connected to the lower variable stiffness ring and sleeved on the outer wall of the lower variable stiffness ring, and the pile guard sleeve is sleeved on the outer wall of the lower protective pile.

[0010] The beneficial effects of the variable stiffness horizontal load-bearing support pile of the present invention are as follows: the upper support pile and the lower support pile are connected by threads, allowing for assembly and disassembly; the upper support pile and the lower support pile are sealed by a rubber ring, which improves the connection strength between them; and the upper and lower variable stiffness components adjust the stiffness of the corresponding upper and lower support piles respectively, thereby changing their stiffness and increasing the load-bearing capacity of the support piles. Furthermore, when not performing high-strength support, the upper and lower variable stiffness components can be arbitrarily combined, disassembled, and assembled to achieve changes in the stiffness of the support piles, adapting to different support environments and strengths. This structural design allows for changes in the stiffness of the support piles and enables disassembly and assembly as needed, maximizing the effectiveness of the materials, saving costs, and reducing support costs. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention.

[0013] Figure 2 This is a magnified view of a partial structure of the first embodiment of the present invention.

[0014] Figure 3 This is a cross-sectional view of the internal structure of the first embodiment of the present invention.

[0015] Figure 4 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0016] Figure 5 This is a cross-sectional view of the internal structure of the second embodiment of the present invention.

[0017] Figure 6 This is a structural schematic diagram of the third embodiment of the present invention.

[0018] Figure 7 This is a partial structural enlarged view of the third embodiment of the present invention.

[0019] Figure 8 This is a cross-sectional view of the internal structure of the third embodiment of the present invention.

[0020] 101-Upper protective pile, 102-Lower protective pile, 103-Upper variable stiffener column, 104-Upper variable stiffener plate, 105-Upper variable stiffener mounting bolt, 106-Upper variable stiffener spring, 107-First lower variable stiffener column, 108-First lower variable stiffener plate, 109-First lower variable stiffener mounting bolt, 110-Mounting ring, 111-Rubber ring, 201-Second lower variable stiffener column, 202-Second lower variable stiffener plate, 203-Lower variable stiffener ring, 204-Second lower variable stiffener mounting bolt, 205-Pile sleeve, 301-Inlay, 302-Threaded cylinder, 303-Screw rod, 304-Support rib, 305-Support rib. Detailed Implementation

[0021] The first embodiment of this application is as follows:

[0022] Please see Figures 1 to 3 , among which Figure 1 This is a structural schematic diagram of the first embodiment of the present invention. Figure 2 This is a partial enlarged view of the structure of the first embodiment of the present invention. Figure 3 This is a cross-sectional view of the internal structure of the first embodiment of the present invention.

[0023] This invention provides a variable stiffness horizontal load-bearing retaining pile: comprising an upper retaining pile 101, a lower retaining pile 102, an upper variable stiffness assembly, a lower variable stiffness assembly, an mounting ring 110, and a rubber ring 111. The mounting ring 110 is fixedly connected to the lower retaining pile 102 and is sleeved on the outer wall of the lower retaining pile 102. The rubber ring 111 is fixedly connected to the mounting ring 110 and is located on one side of the mounting ring 110, and is sleeved on the outer wall of the lower retaining pile 102. The lower retaining pile 102 is threadedly connected to the upper retaining pile 101 and is located at one end of the upper retaining pile 101. The upper variable stiffness assembly is disposed at one end of the upper retaining pile 101, and the lower variable stiffness assembly is disposed at one end of the lower retaining pile 102. The upper support pile 101 and the lower support pile 102 are connected by threads, allowing for assembly and disassembly. The upper support pile 101 and the lower support pile 102 are sealed by the rubber ring 111, which can improve the connection strength between the upper support pile 101 and the lower support pile 102. The upper and lower stiffness-changing components adjust the stiffness of the corresponding upper support pile 101 and lower support pile 102 respectively, thereby changing the stiffness of the upper support pile 101 and the lower support pile 102 and improving the load-bearing capacity of the support pile. At the same time, when high-strength support is not required, the upper and lower stiffness-changing components can be arbitrarily combined, disassembled, and assembled to achieve changes in the stiffness of the support pile to correspond to different support environments and support strengths.

[0024] The upper stiffening assembly includes an upper stiffening column 103, an upper stiffening plate 104, upper stiffening mounting bolts 105, and an upper stiffening spring 106. The upper stiffening column 103 is threadedly connected to the upper retaining pile 101, and one end of the upper stiffening column 103 is embedded inside the upper retaining pile 101. The upper stiffening plate 104 is fixedly connected to the upper stiffening column 103 and located at one end of the upper stiffening column 103. Multiple upper stiffening mounting bolts 105 are present, each of which passes through the upper stiffening plate 104 and is threadedly connected to the upper retaining pile 101. The upper stiffening spring 106... There are multiple upper stiffness springs 106, each of which is sleeved on the outer wall of the corresponding upper stiffness mounting bolt 105. Each upper stiffness spring 106 is respectively disposed between the upper stiffness plate 104 and the upper protective pile 101. The upper stiffness column 103 changes the stiffness of the upper protective pile 101, and the upper stiffness plate 104 and the upper stiffness mounting bolt 105 fix it to one end of the upper protective pile 101. At the same time, the upper stiffness spring 106 supports the upper stiffness plate 104 to achieve the purpose of shock absorption and prevent the upper stiffness mounting bolt 105 from loosening.

[0025] Secondly, the lower stiffening assembly includes a first lower stiffening column 107, a first lower stiffening plate 108, and a first lower stiffening mounting bolt 109. The first lower stiffening column 107 is disposed inside the lower retaining pile 102. The first lower stiffening plate 108 is fixedly connected to the first lower stiffening column 107 and is located at one end of the first lower stiffening column 107. There are multiple first lower stiffening mounting bolts 109, each of which passes through the first lower stiffening plate 108 and is threadedly connected to the lower retaining pile 102. The first lower stiffening column 107 changes the stiffness of the lower retaining pile 102, and the first lower stiffening plate and the first lower stiffening mounting bolt are used to fix it to one end of the lower retaining pile 102.

[0026] When using a variable stiffness horizontal load-bearing retaining pile according to this embodiment, the upper retaining pile 101 and the lower retaining pile 102 are threaded together, allowing for assembly and disassembly. The upper retaining pile 101 and the lower retaining pile 102 are sealed by a rubber ring 111, which improves the connection strength between them. The upper and lower variable stiffness components adjust the stiffness of the corresponding upper retaining pile 101 and lower retaining pile 102, respectively, thereby increasing the load-bearing capacity of the retaining pile. Furthermore, when not requiring high-strength support, the upper variable stiffness component and the lower... The variable stiffness assembly can be arbitrarily combined, disassembled, and assembled to achieve changes in the stiffness of the support piles, corresponding to different support environments and support strengths. The stiffness of the upper support pile 101 is changed by the upper variable stiffness column 103, and it is fixed to one end of the upper support pile 101 by the upper variable stiffness plate 104 and the upper variable stiffness mounting bolt 105. At the same time, the upper variable stiffness spring 106 supports the upper variable stiffness plate 104 to achieve the purpose of shock absorption and prevent the upper variable stiffness mounting bolt 105 from loosening. The stiffness of the lower support pile 102 is changed by the first lower variable stiffness column 107, and it is fixed to one end of the lower support pile 102 by the first variable steel plate and the first variable stiffness mounting bolt.

[0027] The second embodiment of this application is as follows:

[0028] Please see Figure 4 and Figure 5 ,in Figure 4 This is a structural schematic diagram of the second embodiment of the present invention. Figure 5 This is a cross-sectional view of the internal structure of the second embodiment of the present invention.

[0029] This invention provides a variable stiffness horizontal load-bearing retaining pile: comprising an upper retaining pile 101, a lower retaining pile 102, an upper variable stiffness assembly, a lower variable stiffness assembly, an mounting ring 110, and a rubber ring 111. The mounting ring 110 is fixedly connected to the lower retaining pile 102 and is sleeved on the outer wall of the lower retaining pile 102. The rubber ring 111 is fixedly connected to the mounting ring 110 and is located on one side of the mounting ring 110, and is sleeved on the outer wall of the lower retaining pile 102. The lower retaining pile 102 is threadedly connected to the upper retaining pile 101 and is located at one end of the upper retaining pile 101. The upper variable stiffness assembly is disposed at one end of the upper retaining pile 101, and the lower variable stiffness assembly is disposed at one end of the lower retaining pile 102. The upper support pile 101 and the lower support pile 102 are connected by threads, allowing for assembly and disassembly. The upper support pile 101 and the lower support pile 102 are sealed by the rubber ring 111, which can improve the connection strength between the upper support pile 101 and the lower support pile 102. The upper and lower stiffness-changing components adjust the stiffness of the corresponding upper support pile 101 and lower support pile 102 respectively, thereby changing the stiffness of the upper support pile 101 and the lower support pile 102 and improving the load-bearing capacity of the support pile. At the same time, when high-strength support is not required, the upper and lower stiffness-changing components can be arbitrarily combined, disassembled, and assembled to achieve changes in the stiffness of the support pile to correspond to different support environments and support strengths.

[0030] The upper stiffening assembly includes an upper stiffening column 103, an upper stiffening plate 104, upper stiffening mounting bolts 105, and an upper stiffening spring 106. The upper stiffening column 103 is threadedly connected to the upper retaining pile 101, and one end of the upper stiffening column 103 is embedded inside the upper retaining pile 101. The upper stiffening plate 104 is fixedly connected to the upper stiffening column 103 and located at one end of the upper stiffening column 103. Multiple upper stiffening mounting bolts 105 are present, each of which passes through the upper stiffening plate 104 and is threadedly connected to the upper retaining pile 101. The upper stiffening spring 106... There are multiple upper stiffness springs 106, each of which is sleeved on the outer wall of the corresponding upper stiffness mounting bolt 105. Each upper stiffness spring 106 is respectively disposed between the upper stiffness plate 104 and the upper protective pile 101. The upper stiffness column 103 changes the stiffness of the upper protective pile 101, and the upper stiffness plate 104 and the upper stiffness mounting bolt 105 fix it to one end of the upper protective pile 101. At the same time, the upper stiffness spring 106 supports the upper stiffness plate 104 to achieve the purpose of shock absorption and prevent the upper stiffness mounting bolt 105 from loosening.

[0031] Secondly, the lower stiffening assembly includes a second lower stiffening column 201, a second lower stiffening plate 202, a lower stiffening ring 203, and a second lower stiffening mounting bolt 204. The second lower stiffening column 201 is disposed inside the lower retaining pile 102. The second lower stiffening plate 202 is fixedly connected to the second lower stiffening column 201 and located at one end of the second lower stiffening column 201. The lower stiffening ring 203 is fixedly connected to the second lower stiffening plate 202 and located on one side of the second lower stiffening plate 202. The number of second lower variable stiffness mounting bolts 204 is multiple. Each second lower variable stiffness mounting bolt 204 passes through the second lower variable stiffness plate 202 and is threadedly connected to the lower protective pile 102. The second lower variable stiffness column 201 changes the stiffness of the lower protective pile 102 and is fixed to one end of the lower protective pile 102 by the second lower variable stiffness plate 202 and the second lower variable stiffness mounting bolts 204. At the same time, the lower variable stiffness ring 203 is fixedly installed to one side of the second lower variable stiffness plate 202.

[0032] Meanwhile, the lower stiffness-changing assembly also includes a pile guard sleeve 205, which is threadedly connected to the lower stiffness-changing ring 203 and sleeved on the outer wall of the lower stiffness-changing ring 203. The pile guard sleeve 205 is also sleeved on the outer wall of the lower protective pile 102. By threading the pile guard sleeve 205 to the lower stiffness-changing ring 203 and sleeved on the outer wall of the lower protective pile 102, the stiffness of the lower protective pile 102 is changed again.

[0033] When using a variable stiffness horizontal load-bearing support pile according to this embodiment, the upper support pile 101 and the lower support pile 102 are threaded together, allowing for assembly and disassembly. The upper support pile 101 and the lower support pile 102 are sealed by a rubber ring 111, which improves the connection strength between them. The upper and lower variable stiffness components adjust the stiffness of the corresponding upper support pile 101 and lower support pile 102, respectively, thereby increasing the load-bearing capacity of the support pile. Furthermore, when not providing high-strength support, the upper and lower variable stiffness components can be arbitrarily combined, disassembled, and assembled to change the stiffness of the support pile, adapting to different support environments and strengths. 03. The stiffness of the upper protective pile 101 is changed, and it is fixed to one end of the upper protective pile 101 by the upper variable stiffness plate 104 and the upper variable stiffness mounting bolt 105. At the same time, the upper variable stiffness spring 106 supports the upper variable stiffness plate 104 to achieve the purpose of shock absorption and prevent the upper variable stiffness mounting bolt 105 from loosening. The second lower variable stiffness column 201 changes the stiffness of the lower protective pile 102 and is fixed to one end of the lower protective pile 102 by the second lower variable stiffness plate 202 and the second lower variable stiffness mounting bolt 204. At the same time, the lower variable stiffness ring 203 is fixedly installed to one side of the second lower variable stiffness plate 202. The stiffness of the lower protective pile 102 is changed again by threading the protective pile sleeve 205 to the lower variable stiffness ring 203 and fitting it on the outer wall of the lower protective pile 102.

[0034] The third embodiment of this application is as follows:

[0035] Based on the second embodiment, please refer to Figures 6 to 8 ,in Figure 6 This is a structural schematic diagram of the third embodiment of the present invention. Figure 7 This is a partial enlarged view of the structure of the third embodiment of the present invention. Figure 8 This is a cross-sectional view of the internal structure of the third embodiment of the present invention.

[0036] The present invention provides a variable stiffness horizontal load-bearing support pile: the lower variable stiffness component further includes a support component, and there are multiple support components. Each support component is respectively disposed on the outer wall of the upper support pile 101 and the support pile sleeve 205. The support component can enhance the external strength of the support pile and improve the load strength of the support pile.

[0037] Each of the support components includes an insert, a support rib 304, and a support rib 305. There are two inserts, each of which is fixedly connected to the corresponding upper retaining pile 101 and the retaining pile sleeve 205, and is located on the outer wall of the corresponding upper retaining pile 101 and the retaining pile sleeve 205. The two ends of the support rib 304 are respectively disposed inside the corresponding insert. There are multiple support ribs 305, each of which is fixedly connected to the support rib 304 and is located on both sides of the support rib 304. The support rib 304 is installed and fixed by the insert, and is supported by the support rib 304 and multiple support ribs 305, thereby improving the support strength and support load of the support pile, and can further change the stiffness of the support pile.

[0038] Secondly, each insert includes an insert 301, a threaded cylinder 302, and a screw 303. The threaded cylinder 302 is fixedly connected to the insert 301 and is located inside the insert 301. One end of the screw 303 passes through the insert 301 and is threadedly connected to the threaded cylinder 302. One end of the support rib 304 is sleeved on the outer wall of the threaded cylinder 302 and the screw 303, so that one end of the support rib 304 is embedded in the insert 301. The threaded cylinder 302 passes through the support rib 304, and the screw 303 passes through the insert 301 and is threadedly connected to the threaded cylinder 302, thereby fixing the support rib 304.

[0039] When using a variable stiffness horizontally loaded retaining pile according to this embodiment, the external strength of the retaining pile can be enhanced and the load strength of the retaining pile can be increased by the support assembly. The support bar 304 is installed and fixed by the insert. The support bar 304 and multiple support ribs 305 provide support, thereby improving the support strength and support load of the retaining pile. At the same time, the stiffness of the retaining pile can be further changed. One end of the support bar 304 is embedded in the insert 301, and the threaded cylinder 302 passes through the support bar 304. Then, the screw 303 passes through the insert 301 and is threadedly connected to the threaded cylinder 302 to achieve the purpose of fixing the support bar 304.

[0040] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A variable stiffness horizontally loaded retaining pile, characterized in that, The device includes an upper retaining pile, a lower retaining pile, an upper variable stiffness assembly, a lower variable stiffness assembly, an mounting ring, and a rubber ring. The mounting ring is fixedly connected to the lower retaining pile and is sleeved on the outer wall of the lower retaining pile. The rubber ring is fixedly connected to the mounting ring and is located on one side of the mounting ring, and is sleeved on the outer wall of the lower retaining pile. The lower retaining pile is threadedly connected to the upper retaining pile and is located at one end of the upper retaining pile. The upper variable stiffness assembly is located at one end of the upper retaining pile, and the lower variable stiffness assembly is located at one end of the lower retaining pile. The upper stiffening assembly includes an upper stiffening column, an upper stiffening plate, upper stiffening mounting bolts, and upper stiffening springs. The upper stiffening column is threadedly connected to the upper retaining pile, and one end of the upper stiffening column is embedded inside the upper retaining pile. The upper stiffening plate is fixedly connected to the upper stiffening column and is located at one end of the upper stiffening column. There are multiple upper stiffening mounting bolts, each of which passes through the upper stiffening plate and is threadedly connected to the upper retaining pile. There are multiple upper stiffening springs, each of which is sleeved on the outer wall of the corresponding upper stiffening mounting bolt, and each upper stiffening spring is respectively disposed between the upper stiffening plate and the upper retaining pile.

2. The variable stiffness horizontally loaded retaining pile as described in claim 1, characterized in that, The lower stiffening assembly includes a first lower stiffening column, a first lower stiffening plate, and a first lower stiffening mounting bolt. The first lower stiffening column is disposed inside the lower retaining pile. The first lower stiffening plate is fixedly connected to the first lower stiffening column and is located at one end of the first lower stiffening column. There are multiple first lower stiffening mounting bolts, each of which passes through the first lower stiffening plate and is threadedly connected to the lower retaining pile.

3. The variable stiffness horizontally loaded retaining pile as described in claim 1, characterized in that, The lower stiffening assembly includes a second lower stiffening column, a second lower stiffening plate, a lower stiffening ring, and second lower stiffening mounting bolts. The second lower stiffening column is disposed inside the lower retaining pile. The second lower stiffening plate is fixedly connected to the second lower stiffening column and is located at one end of the second lower stiffening column. The lower stiffening ring is fixedly connected to the second lower stiffening plate and is located on one side of the second lower stiffening plate. There are multiple second lower stiffening mounting bolts, each of which passes through the second lower stiffening plate and is threadedly connected to the lower retaining pile.

4. A variable stiffness horizontally loaded retaining pile as described in claim 3, characterized in that, The lower stiffening assembly also includes a pile protector sleeve, which is threadedly connected to the lower stiffening ring and sleeved on the outer wall of the lower stiffening ring, and the pile protector sleeve is sleeved on the outer wall of the lower protective pile.

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