Soil retaining structure used between cylindrical piles

Abstract

The utility model relates to a soil retaining structure used between cylindrical piles, and belongs to the field of slope protection, the soil retaining structure comprises supports arranged on the outer walls of cast-in-place piles, the supports between the adjacent cast-in-place piles are in one group, the two supports in one group incline towards the direction close to each other, a soil retaining plate is arranged between the supports, and the soil retaining plate is arranged between the supports. The soil retaining plate is slidably clamped to the supporting baffle, the end face, facing the cast-in-place pile, of the soil retaining plate abuts against the cast-in-place pile, and the sliding direction of the soil retaining plate is parallel to the length direction of the cast-in-place pile. The slope protection construction method has the effect of improving the slope protection construction speed.

Description

Technical Field

[0001] The present application relates to the field of slope protection, and in particular to a retaining structure used between cylindrical piles. Background Art

[0002] Pile-sheet wall structure, also known as pile-board structure, is a retaining wall structure, usually composed of piles, retaining wall panels and pile top beams. Pile-sheet walls are usually made of reinforced concrete or precast concrete, with high strength and stability. It is a commonly used foundation structure, usually used for retaining soil and bearing building loads.

[0003] The retaining plate between piles is a temporary retaining structure to prevent the earthwork of trenches and foundation pits from collapsing. In the prior art, after the piles are driven, while the earthwork is being excavated, retaining plates between piles are set up to reinforce the slopes to prevent slope landslides and safety accidents. However, the retaining plates between piles are usually cast-in-place reinforced concrete structures. After the concrete is poured, it needs to be cured to reach the designed strength before the earthwork can be excavated. The use of cast-in-place reinforced concrete structures slows down the construction speed and reduces the construction efficiency. Utility Model Content

[0004] In order to increase the speed of slope protection construction, the present application provides a retaining structure used between cylindrical piles.

[0005] The present application provides a retaining structure for use between cylindrical piles using the following technical solution:

[0006] A retaining structure used between cylindrical piles, including supports arranged on the outer walls of the cast-in-place piles, the supports between adjacent cast-in-place piles form a group, the two supports in a group are inclined in a direction approaching each other, retaining plates are arranged between the supports, the retaining plates are slidably clamped on the supports and abut against the cast-in-place piles with the end faces facing the cast-in-place piles, and the sliding direction of the retaining plates is parallel to the length direction of the cast-in-place piles.

[0007] Optionally, the cross-section of the retaining plate is arc-shaped, and the surface of the retaining plate used for supporting is convex toward the supporting soil layer.

[0008] Optionally, the retaining plate is provided with a sliding groove for the support to slide and engage, the end of the support located in the sliding groove is dovetail-shaped, and the sliding groove is a dovetail groove adapted to the support.

[0009] Optionally, the upper end surface of the retaining plate is provided with two symmetrical thread grooves, and the lower end surface of the retaining plate away from the thread groove is rotatably provided with a screw rod that cooperates with the thread groove. The end of the retaining plate away from the screw rod is provided with a through hole, the through hole is coaxial with the screw rod, and the screw rod is rotatably provided in the through hole.

[0010] Optionally, a connecting block is provided on the upper end surface of the retaining plate, and the connecting block is in an inverted L shape. A groove is provided on the lower end surface of the retaining plate, and a sliding block is slidably provided in the groove. The sliding direction of the sliding block is perpendicular to the center line direction of the retaining plate. The retaining plate is provided with a driving member for driving the sliding block to slide into the connecting block to connect adjacent retaining plates.

[0011] Optionally, the driving member includes a first inclined surface provided on the connecting block and a second inclined surface provided on the sliding block, the first inclined surface is located on the transverse block of the connecting block and is inclined toward the earth retaining plate, the second inclined surface is adapted to the first inclined surface, and when the earth retaining plate is installed in an overlapping manner, the second inclined surface is pressed against the first inclined surface and slides along the first inclined surface, and a spring is also provided in the groove, one end of the spring is provided on the earth retaining plate, and the other end is provided on the sliding block, and the spring drives the sliding block to have a movement tendency toward the inside of the connecting block.

[0012] The optional retaining structure between the cylindrical piles also includes a winch arranged on the cast-in-place pile, on which a first steel wire rope is wound, a hook is provided at the end of the first steel wire rope, and a hanging ring for the hook to be hung is provided on the retaining plate at the bottom.

[0013] Optionally, the supports are evenly and staggeredly arranged on both sides of adjacent cast-in-place piles.

[0014] Optionally, a lifting ring is provided on the upper end surface of the retaining plate, and a lifting ring groove corresponding to the position of the lifting ring and used to accommodate the lifting ring is opened on the lower end surface of the retaining plate.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. By setting supports on the wall of the cast-in-place piles, setting prefabricated arc-shaped retaining plates between the supports, and opening a slide groove on the retaining plate for the supports to slide and engage, the retaining plate is slid and engaged on the supports and the end face facing the cast-in-place piles abuts against the cast-in-place columns, so that the cast-in-place piles, retaining plates and supports form a support system, which has a retaining effect on the earthwork on the side walls of the foundation pit. The retaining plates are prefabricated in the factory, and there is no need to cast concrete in sections when the foundation pit is excavated, which avoids the problem that the concrete needs to be cured to reach the design strength before the foundation pit can be excavated, reduces the slope protection construction period, and improves the construction speed;

[0017] 2. The retaining plates are overlapped to form an integrated type. The winch on the cast-in-place piles can drive the retaining plates as a whole to move toward the bottom of the foundation pit. The retaining plates can also be fixed to a specified position, realizing protection while excavating the foundation pit. The operation is simple and convenient, and it improves the safety during foundation pit excavation and reduces the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the overall structure of Example 1 of the present application;

[0019] Figure 2 It is a schematic diagram of the splicing of the support and the retaining plate in Example 1 of the present application;

[0020] Figure 3 It is a structural schematic diagram of the splicing method of the retaining plate in Example 1 of the present application;

[0021] Figure 4 is a schematic diagram of the connection between the winch and the earth retaining plate in Example 1 of the present application;

[0022] Figure 5 yes Figure 4 A magnified schematic diagram of part A;

[0023] Figure 6 It is a structural schematic diagram of the splicing method of the retaining plate in Example 2 of the present application;

[0024] Figure 7 yes Figure 6 Schematic diagram of the enlarged portion B.

[0025] Description of reference numerals: 1. cast-in-place pile; 2. support; 3. retaining plate; 4. slideway; 5. threaded groove; 6. screw rod; 7. through hole; 8. winch; 9. first wire rope; 10. hook; 11. hanging ring; 12. lifting ring; 13. connecting block; 14. groove; 15. slider;

[0026] 1. Driving member; 161. first inclined surface; 162. second inclined surface; 17. spring. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-7 This application is described in further detail.

[0028] Example 1

[0029] The present application embodiment discloses a retaining structure for use between cylindrical piles. Figure 1 and Figure 2 The retaining structure between the cylindrical piles includes a support 2 arranged on the outer wall of the bored pile 1. The supports 2 between adjacent bored piles 1 are a group, and the two supports 2 in a group are inclined in the direction of approaching each other. A support 2 is formed by pre-embedding dowels in the bored piles 1 and then casting the dowels in situ. A retaining plate 3 is arranged between the supports 2. The retaining plate 3 is slidably clamped on the support 2 and abuts against the bored pile 1 facing the end face of the bored pile 1. The sliding direction of the retaining plate 3 is parallel to the length direction of the bored pile 1. The retaining plate 3 is prefabricated in the factory. As the earth is excavated, the retaining plate 3 prefabricated between the piles is constructed to form a complete circular pile plate structure.

[0030] When constructing the retaining plate 3 between piles, the retaining plate 3 is first transported to the specified position, and then the retaining plate 3 is clamped on the support 2. Since the retaining plate 3 is prefabricated and slidably clamped on the support 2, the retaining plate 3 automatically slides toward the bottom of the foundation pit as the foundation pit is excavated, so that the foundation pit can be excavated and protected at the same time, which greatly speeds up the slope protection construction speed and reduces the construction period.

[0031] Reference Figure 1 and Figure 2 In the embodiment of the present application, the cross-section of the retaining plate 3 is arc-shaped, the surface of the retaining plate 3 used for supporting is convex toward the supporting soil layer, and the supporting surface is in contact with the side wall of the foundation pit. The arc-shaped retaining plate 3 has better strength, and under the action of the soil pressure of the side wall of the foundation pit, the supporting effect on the side wall of the foundation pit is further improved.

[0032] Reference Figure 1 and Figure 3 In order to facilitate the installation and fixation between the retaining plate 2 and the retaining plate 3, the retaining plate 3 is provided with a slide groove 4 for the retaining plate 2 to slide and engage. The end of the retaining plate 2 located in the slide groove 4 is dovetail-shaped, and the slide groove 4 is a dovetail groove adapted to the retaining plate 2. The setting of the dovetail groove enables the retaining plate 3 to be engaged with the retaining plate 2, making the connection between the retaining plate 3 and the retaining plate 2 more stable and enhancing the stability of the structure.

[0033] Reference Figure 3 Furthermore, in order to enable the retaining plate 3 to be superimposed to form an integrated structure for the convenience of on-site construction, two symmetrical thread grooves 5 are provided on the upper end surface of the retaining plate 3, and a screw 6 cooperating with the thread groove 5 is rotatably provided on the lower end surface of the retaining plate 3 away from the thread groove 5, and a through hole 7 is provided at one end of the retaining plate 3 away from the screw 6, and the through hole 7 is coaxial with the screw 6, and the screw 6 is rotatably provided in the through hole 7. The screw 6 is rotated through the through hole 7 to enter the thread groove 5, and the two retaining plates 3 are superimposed into a whole. The integrated retaining plate 3 makes it convenient to hoist and operate on the construction site.

[0034] Reference Figure 4 and Figure 5Furthermore, in order to facilitate the movement of the retaining plate 3, the retaining structure between the cylindrical piles also includes a winch 8 arranged on the cast-in-place pile 1. The winch 8 is arranged on each of the adjacent cast-in-place piles 1. The winch 8 is located at the top of the cast-in-place pile 1. The winch 8 is wound with a first steel wire rope 9. A hook 10 is arranged at the end of the first steel wire rope 9. A hanging ring 11 for the hook 10 to hang is arranged on the retaining plate 3 located at the bottom. When the retaining plate 3 needs to move toward the bottom of the foundation pit, the hook 10 on the first steel wire rope 9 is hung on the hanging ring 11, and then the retaining plate 3 is transported to the designated position by the first steel wire rope 9 on the winch 8. The conveying of the retaining plate 3 by the winch 8 replaces the traditional mechanical transportation. With the excavation of the earthwork, the retaining plate 3 only needs to be transported to the designated position by the first steel wire rope 9 on the winch 8. The retaining plate 3 can also be fixed to the desired position, realizing the protection while excavating the foundation pit, which is easy to operate and improves the safety of the foundation pit excavation.

[0035] Reference Figure 1 and Figure 4 In order to save raw materials and reduce the number of cast-in-place supports 2, the supports 2 are evenly arranged on both sides of adjacent cast-in-place piles 1. The supports 2 are evenly arranged, which reduces the number of cast-in-place supports 2, not only saving costs but also reducing the maintenance time of the supports 2, thereby increasing the construction speed.

[0036] Reference Figure 3 Furthermore, a lifting ring 12 is provided on the upper end surface of the retaining board 3, and a lifting ring groove corresponding to the position of the lifting ring 12 and used to accommodate the lifting ring 12 is provided on the lower end surface of the retaining board 3. The provision of the lifting ring 12 facilitates the lifting of the retaining board 3 when it is stacked, and after the lifting is completed, the lifting ring 12 can be located in the lifting ring groove, so that the lifting ring 12 does not affect the stability of the entire retaining board 3. The provision of the lifting ring 12 makes it more convenient to lift the retaining board 3.

[0037] The implementation principle of Example 1 of the present application embodiment, a retaining structure between cylindrical piles, is as follows:

[0038] After the construction of the cast-in-place pile 1 is completed, the soil in front of the pile is first excavated in layers, and then the dowels are pre-buried in layers. As the earthwork is excavated, a template is set on the dowels, and concrete is cast in place to form the retaining plate 2. The retaining plate 3 is stacked into a whole by the use of the screw 6 and the threaded groove 5 on the retaining plate 3, and then the retaining plate 3 is hoisted and slidably connected to the retaining plate 2, and the retaining plate 3 is slid to the position that needs to be protected by the first wire rope 9 of the winch 8. As the earthwork is excavated, the retaining plate 3 automatically slides to the excavated part with the cooperation of the winch 8, and then the retaining plate 3 is fixed by the first wire rope 9 on the winch 8, and then the next section of the foundation pit earthwork is excavated.

[0039] Example 2

[0040] The difference between Example 2 and Example 1 is that, referring to Figure 6 and Figure 7 In the embodiment of the present application, a connecting block 13 is provided on the upper end surface of the retaining plate 3, and the connecting block 13 is in an inverted L shape. A groove 14 is provided on the lower end surface of the retaining plate 3, and a slider 15 is slidably provided in the groove 14. The sliding direction of the slider 15 is perpendicular to the center line direction of the retaining plate 3. The retaining plate 3 is provided with a driving member 16 for driving the slider 15 to slide into the connecting block 13 to connect adjacent retaining plates 3. When the retaining plates 3 are overlapped and installed, under the action of gravity, the retaining plates 3 are connected into a whole through the use of the connecting block 13 and the slider 15 to enhance the integrity of the retaining plates 3. The retaining plates 3 spliced ​​into a whole can increase the vertical protection area of ​​the slope, thereby reducing safety accidents caused by inadequate slope protection.

[0041] Reference Figure 7 The driving member 16 includes a first inclined surface 161 provided on the connecting block 13 and a second inclined surface 162 provided on the sliding block 15. The first inclined surface 161 is located on the transverse block of the connecting block 13 and is inclined toward the retaining plate 3. The second inclined surface 162 is adapted to the first inclined surface 161. When the retaining plate 3 is overlapped and installed, the second inclined surface 162 is pressed on the first inclined surface 161 and slides along the first inclined surface 161. A spring 17 is also provided in the groove 14. One end of the spring 17 is provided on the retaining plate 3, and the other end is provided on the sliding block 15. The spring 17 drives the sliding block 15 to have a movement tendency toward the inside of the connecting block 13.

[0042] When the retaining plates 3 are overlapped and installed, the second inclined surface 162 is pressed against the first section. Under the action of the upper load, the second inclined surface 162 drives the slider 15 to slide toward the retaining plate 3. The spring 17 is compressed under the action of the load. As the retaining plates 3 move downward, the elastic force of the spring 17 drives the slider 15 into the connection block 13, connecting the retaining plates 3 as a whole, thus realizing the integration of the retaining plates 3. The retaining plates 3 are spliced ​​in this way, so that the connection between the retaining plates 3 is more firm and the operation is more convenient.

[0043] The implementation principle of Example 2 is:

[0044] After the construction of the cast-in-place pile 1 is completed, the soil in front of the pile is first excavated in layers, and then the dowels are pre-buried in layers. As the earthwork is excavated, a template is set on the dowels, and concrete is cast in place to form the retaining plate 2. The retaining plate 3 is stacked into a whole through the connecting block 13 and the slider 15 on the retaining plate 3, and then the retaining plate 3 is hoisted and slidably connected to the retaining plate 2, and the retaining plate 3 is slid to the position that needs to be protected during construction through the first steel wire rope 9 of the winch 8. As the earthwork is excavated, the retaining plate 3 automatically slides to the excavated part with the cooperation of the winch 8, and then the retaining plate 3 is fixed by the first steel wire rope 9 on the winch 8, and then the next section of foundation pit earthwork excavation is carried out.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A retaining structure used between cylindrical piles, characterized in that: The invention comprises a retaining plate (2) arranged on the outer wall of a bored pile (1), wherein the retaining plates (2) between adjacent bored piles (1) form a group, wherein two retaining plates (2) in a group are inclined in a direction approaching each other, and a retaining plate (3) is arranged between the retaining plates (2), wherein the retaining plate (3) is slidably engaged with the retaining plates (2) and abuts against the bored pile (1) with its end surface facing the bored pile (1), and wherein the sliding direction of the retaining plate (3) is parallel to the length direction of the bored pile (1).

2. A retaining structure for use between cylindrical piles according to claim 1, characterized in that: The cross section of the retaining plate (3) is arc-shaped, and the surface of the retaining plate (3) used for supporting is convex toward the supporting soil layer.

3. A retaining structure for use between cylindrical piles according to claim 2, characterized in that: The retaining plate (3) is provided with a slide groove (4) for the support (2) to slide and engage with, the end of the support (2) located in the slide groove (4) is dovetail-shaped, and the slide groove (4) is a dovetail groove adapted to the support (2).

4. A retaining structure for use between cylindrical piles according to claim 3, characterized in that: The upper end surface of the retaining plate (3) is provided with two symmetrical thread grooves (5); the lower end surface of the retaining plate (3) away from the thread groove (5) is rotatably provided with a screw rod (6) matched with the thread groove (5); one end of the retaining plate (3) away from the screw rod (6) is provided with a through hole (7); the through hole (7) is coaxial with the screw rod (6); and the screw rod (6) is rotatably provided in the through hole (7).

5. The retaining structure for use between cylindrical piles according to claim 3, characterized in that: The upper end surface of the retaining plate (3) is provided with a connecting block (13), the connecting block (13) is in an inverted L shape, the lower end surface of the retaining plate (3) is provided with a groove (14), a sliding block (15) is slidably arranged in the groove (14), the sliding direction of the sliding block (15) is perpendicular to the center line direction of the retaining plate (3), and the retaining plate (3) is provided with a driving member (16) for driving the sliding block (15) to slide into the connecting block (13) so as to connect adjacent retaining plates (3).

6. A retaining structure for use between cylindrical piles according to claim 5, characterized in that: The driving member (16) comprises a first inclined surface (161) provided on the connecting block (13) and a second inclined surface (162) provided on the sliding block (15); the first inclined surface (161) is located on the transverse block of the connecting block (13) and is inclined toward the retaining plate (3); the second inclined surface (162) is adapted to the first inclined surface (161); when the retaining plate (3) is overlapped and installed, the second inclined surface (162) is pressed against the first inclined surface (161) and slides along the first inclined surface (161); a spring (17) is further provided in the groove (14); one end of the spring (17) is provided on the retaining plate (3) and the other end is provided on the sliding block (15); the spring (17) drives the sliding block (15) to have a movement tendency toward the inside of the connecting block (13).

7. A retaining structure for use between cylindrical piles according to claim 6, characterized in that: The retaining structure between the cylindrical piles also includes a winch (8) arranged on the cast-in-place pile (1), a first steel wire rope (9) being wound on the winch (8), a hook (10) being arranged at the end of the first steel wire rope (9), and a hanging ring (11) for the hook (10) to be hung is arranged on the retaining plate (3) at the bottom.

8. The retaining structure for use between cylindrical piles according to claim 3, characterized in that: The supports (2) are evenly and staggeredly arranged on both sides of adjacent cast-in-place piles (1).

9. The retaining structure for use between cylindrical piles according to claim 7, characterized in that: The upper end surface of the retaining plate (3) is provided with a lifting ring (12), and the lower end surface of the retaining plate (3) is provided with a lifting ring groove corresponding to the position of the lifting ring (12) and used to accommodate the lifting ring (12).

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