Pile plate type retaining wall and vertical limiting structure of prefabricated breast board of pile plate type retaining wall

Abstract

The utility model relates to a vertical limiting structure of a pile plate type retaining wall prefabricated breast board. The vertical limiting structure comprises a first bolt hole piece, a second bolt hole piece and a bolt. Lug walls are formed on the two sides of the pile body, the first bolt hole pieces are connected to the lug walls, and first bolt holes penetrating through the lug walls are formed in the lug walls through the first bolt hole pieces. The second bolt hole piece is connected to the soil retaining plate, a second bolt hole transversely penetrating through the soil retaining plate is formed in the soil retaining plate through the second bolt hole piece, the second bolt hole is aligned to the first bolt hole, and the bolt sequentially penetrates through the first bolt hole and the second bolt hole and is in threaded connection with the first bolt hole and the second bolt hole so that the soil retaining plate can be limited to the preset position of the pile body. By the adoption of the vertical limiting device, layer-by-layer excavation of a soil body can be conducted, it is guaranteed that the breast board is stably connected with the pile body all the time, reliable vertical limiting is achieved, mounting and dismounting are convenient, the breast board mounting construction difficulty is lowered, the work efficiency is improved, and the construction risk is lowered. The utility model further discloses a pile board type retaining wall.

Description

Technical Field

[0001] The utility model relates to the field of high slope vertical support in house construction, municipal engineering and highway engineering, and in particular to a pile-plate type retaining wall and a vertical limiting structure of a prefabricated retaining plate thereof. Background Art

[0002] Pile-sheet retaining walls are suitable for slopes where excavation of earth and stone may endanger the safety of adjacent buildings or the environment, fill slope support, and engineering landslide control. Pile-sheet retaining walls are divided into cantilever pile-sheet retaining walls and anchor pile-sheet retaining walls according to their structural forms. The retaining plates can be cast-in-place plates or prefabricated plates. The choice of pile-sheet retaining wall form should be determined based on comprehensive considerations such as project characteristics, use requirements, terrain, geology, and construction conditions.

[0003] Due to the stress characteristics and design conditions of the pile-sheet wall, the soil in front of the pile is excavated layer by layer from top to bottom (the excavation depth of each layer is determined by calculation), and a retaining board is installed after each layer is excavated. When the upper retaining board has been installed, the lower soil layer is excavated, and the retaining board needs to be vertically limited to prevent it from sliding. At the same time, after the lower soil layer is excavated in place, the vertical limit needs to be released to allow the installed retaining board to fall in a controlled manner, and then a new retaining board is installed above it.

[0004] Therefore, it is necessary to design a retaining plate limiting device that is easy to install and disassemble, which can reduce the installation difficulty of the retaining plate and improve work efficiency. Utility Model Content

[0005] Based on the above description, the utility model provides a vertical limiting structure for a prefabricated retaining plate of a pile-plate retaining wall to solve the technical problems in the prior art that the retaining plate cannot be effectively controlled to fall during installation, and that the position of the upper retaining plate is unstable when excavating the lower soil layer, posing a major safety hazard.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] A vertical limiting structure of a prefabricated retaining plate of a pile-plate retaining wall, used for vertical limiting of the retaining plate relative to the pile body, comprising a first bolt hole member, a second bolt hole member and bolts;

[0008] Ear walls are formed on both sides of the pile body, the first bolt hole member is connected to the ear wall, and the first bolt hole member forms a first bolt hole penetrating through the ear wall on the ear wall;

[0009] The second bolt hole member is connected to the retaining plate, and the second bolt hole member forms a second bolt hole on the retaining plate that transversely penetrates the retaining plate, the second bolt hole and the first bolt hole are aligned, and the bolts are sequentially passed through and threadedly connected to the first bolt hole and the second bolt hole to limit the retaining plate to a predetermined position of the pile body.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0011] In traditional construction, due to the difficulty of construction, the soil in front of the pile is mostly excavated to the bottom at one time and the retaining plate is installed from bottom to top, which violates the design principle and poses a safety hazard. The vertical limit device can be used to excavate the soil layer by layer to ensure that the retaining plate is always stably connected to the pile body and has reliable vertical limit. It is easy to install and disassemble, and the vertical limit of the retaining plate can be added and removed simply and quickly, which reduces the difficulty of retaining plate installation and construction, improves work efficiency, and reduces construction risks.

[0012] On the basis of the above technical solution, the present invention can also be improved as follows.

[0013] Furthermore, the first bolt hole member and the second bolt hole member have the same structure, both including an annular end plate, an anchor bar and a bolt sleeve, the bolt sleeve is fixed to the middle part of the annular end plate, the bolt sleeve and the annular end plate are coaxially arranged, the anchor bar is arranged on the annular end plate along the outer circumference of the bolt sleeve, and the anchor bar and the axis of the annular end plate are arranged parallel.

[0014] Furthermore, the first bolt hole is pre-buried in a predetermined position of the ear wall.

[0015] Furthermore, the anchor bar corresponding to the first bolt hole is fixed to the main reinforcement of the pile body by spot welding.

[0016] Furthermore, the second bolt hole is pre-buried at a predetermined position of the retaining plate.

[0017] Furthermore, the bolt is a half-thread bolt.

[0018] The present application also provides a pile-plate retaining wall, which comprises:

[0019] A plurality of pile bodies spaced apart in a predetermined direction, each of the pile bodies having a side close to and away from an adjacent pile body formed with an ear wall protruding outward;

[0020] A plurality of retaining plates, wherein the retaining plates are arranged between two adjacent pile bodies, and the retaining plates between two adjacent pile bodies are stacked from bottom to top;

[0021] A plurality of vertical limiting structures as described above are provided at positions corresponding to each of the retaining plates and the ear walls. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a top view of a vertical limiting structure of a prefabricated retaining plate of a pile-plate retaining wall provided in an embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the structure of the first bolt hole member / the second bolt hole member in the embodiment of the present application;

[0024] Figure 3 This is a schematic diagram of the installation structure of the first bolt hole member in the embodiment of the present application;

[0025] Figure 4 This is a schematic diagram of the installation structure of the second bolt hole member in the embodiment of the present application;

[0026] Figure 5 A schematic diagram of the top structure of a pile-board retaining wall provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0029] It will be appreciated that spatial relationship terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It should be understood that in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, the element or feature described as "under other elements" or "under it" or "under it" will be oriented as "on" the other elements or features. Therefore, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0030] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0031] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0032] like Figures 1 to 4 As shown, an embodiment of the present application provides a vertical limiting structure of a prefabricated retaining plate of a pile-plate retaining wall, which is used for vertical limiting of the retaining plate 1 relative to the pile body 2, and includes a first bolt hole member 10, a second bolt hole member 20 and a bolt 30.

[0033] Wherein, ear walls 21 are formed on both sides of the pile body 2, the first bolt hole member 10 is connected to the ear wall 21, and the first bolt hole member 10 forms a first bolt hole 10a penetrating the ear wall 21 on the ear wall.

[0034] The first bolt hole member 10 and the second bolt hole member 20 have the same structure, and both include an annular end plate 11, an anchor bar 12 and a bolt sleeve 13. The bolt sleeve 13 is fixed to the middle part of the annular end plate 11. The bolt sleeve 13 and the annular end plate 11 are coaxially arranged. The anchor bar 12 is arranged on the annular end plate 11 along the outer circumference of the bolt sleeve 13. The anchor bar 12 and the axis of the annular end plate 11 are arranged parallel.

[0035] The first bolt hole 10 is pre-buried at a predetermined position of the ear wall 21 . Preferably, in order to ensure connection stability, the anchor bar 12 corresponding to the first bolt hole 10 is fixed to the main steel bar of the pile body 2 by spot welding.

[0036] The second bolt hole member 20 is connected to the retaining plate 1, and the second bolt hole member 20 forms a second bolt hole 20a on the retaining plate 1 that transversely penetrates the retaining plate. The second bolt hole 20a is aligned with the first bolt hole 10a, and the bolt 30 is sequentially penetrated and threadedly connected to the first bolt hole 10a and the second bolt hole 20a to limit the retaining plate 1 to a predetermined position of the pile body 2.

[0037] In order to reduce the difficulty of bolt tightening, the bolt 30 in the present application adopts a half-thread bolt, and the thread length only needs to meet the calculation and installation requirements.

[0038] It is understandable that the materials and specifications of the annular end plate 11, the anchor bar 12, and the bolt sleeve 13 are determined comprehensively based on the deadweight and thickness of the retaining plate 1 and the thickness of the ear wall 21 to ensure the stability of the vertical limit.

[0039] Based on the above vertical limit structure, combined with Figure 5 As shown, the present application also provides a pile-plate retaining wall, which includes:

[0040] A plurality of pile bodies 2 are spaced apart along a predetermined direction, and each of the pile bodies 2 is formed with an outwardly protruding ear wall 21 on one side close to and away from the adjacent pile body 1. It can be understood that the predetermined direction can be a straight line direction or a curved direction, which is specifically determined according to the construction requirements. The ear wall 21 can be located on the soil side (the side close to the soil body) or the air side (the side close to the open space) of the pile body 2, and the height of the ear wall 21 needs to be at least not less than the height of the uppermost retaining plate 1.

[0041] A plurality of retaining plates 1 are provided between two adjacent pile bodies 2, and the retaining plates 1 between two adjacent pile bodies 2 are stacked from bottom to top.

[0042] A plurality of vertical limiting structures 3 as above are provided, and the vertical limiting structures 3 are arranged at positions corresponding to each of the retaining plates 1 and the ear walls 21 .

[0043] In order to have a more complete understanding of the technical solution of the present application, the present application describes the vertical limiting structure 3 and its use in combination with the actual construction process of the pile-plate retaining wall:

[0044] The first step is to pre-order the first bolt hole components 10 and the second bolt hole components 20 with corresponding specifications and strengths in batches in the factory.

[0045] Step 2: Cast the pile body 2, and bury a plurality of first bolt hole members 10 in the predetermined position of the ear wall 21 of the pile body 2 in sequence along the vertical direction, so as to form a plurality of first bolt holes arranged along the vertical direction on each ear wall 21.

[0046] Step 3: Make the retaining plate 1. Bury the second bolt hole members 20 at a predetermined depth on both sides of the retaining plate 1, so that second bolt holes are formed on both sides of each retaining plate 1. The retaining plate 1 is prefabricated in batches using steel templates to improve its structural accuracy.

[0047] Step 4: hoist the retaining plate 1 into place, align the second bolt hole on the retaining plate 1 with the first bolt hole on the ear wall, and screw the bolt 30 into place to achieve vertical limit;

[0048] Step 5: excavate the soil below the vertically limited retaining plate 1. After the lower soil is excavated in place, screw out the bolts 30 with the help of suspension measures, release the vertical limit, and lower the retaining plate 1 in a controlled manner. After it is in place, screw in the bolts 30 again.

[0049] The depth of layered excavation is determined by the design unit through calculation. Taking the layered excavation depth of 2m and the height of a single retaining board of 0.5m as an example, that is, 4 retaining boards 1 are placed in each layer, during construction, first excavate to a depth of 2m, and then start to hoist and place the first retaining board 1. Each time a retaining board 1 is placed, a vertical limit structure 3 of the retaining board 1 is added to avoid placing 4 boards at one time and then adding a limit, which makes it difficult to align the bolt holes and the bolts 30 difficult to screw in due to heavy pressure.

[0050] When removing the vertical limiting structure 3 of a single retaining plate 1, a controlled fall should be achieved by hoisting or lifting with a forklift, and the retaining plate 1 should not be allowed to fall freely to avoid structural damage or safety accidents.

[0051] Step 6: Repeat step 5 until all retaining plates 1 are installed.

[0052] Preferably, the second bolt hole member 20 is pre-buried at a predetermined position of the retaining plate 1 .

[0053] In summary, the vertical limit device can be used to excavate the soil layer by layer, ensuring that the retaining plate is always stably connected to the pile body and has reliable vertical limit. It is easy to install and disassemble, and the vertical limit of the retaining plate can be simply and quickly added and released, which reduces the difficulty of retaining plate installation construction, improves work efficiency, and reduces construction risks.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vertical limiting structure of a prefabricated retaining plate of a pile-plate retaining wall, used for vertical limiting of the retaining plate relative to the pile body, characterized in that: It includes a first bolt hole member, a second bolt hole member and a bolt; Ear walls are formed on both sides of the pile body, the first bolt hole member is connected to the ear wall, and the first bolt hole member forms a first bolt hole penetrating through the ear wall on the ear wall; The second bolt hole member is connected to the retaining plate, and the second bolt hole member forms a second bolt hole on the retaining plate that transversely penetrates the retaining plate, the second bolt hole and the first bolt hole are aligned, and the bolts are sequentially passed through and threadedly connected to the first bolt hole and the second bolt hole to limit the retaining plate to a predetermined position of the pile body.

2. The vertical limiting structure of the prefabricated retaining plate of the pile-plate retaining wall according to claim 1 is characterized in that: The first bolt hole member and the second bolt hole member have the same structure, both including an annular end plate, an anchor bar and a bolt sleeve, the bolt sleeve is fixed to the middle part of the annular end plate, the bolt sleeve and the annular end plate are coaxially arranged, the anchor bar is arranged on the annular end plate along the outer circumference of the bolt sleeve, and the anchor bar and the axis of the annular end plate are arranged parallel.

3. The vertical limiting structure of the prefabricated retaining plate of the pile-plate retaining wall according to claim 2 is characterized in that: The first bolt hole member is pre-buried at a predetermined position of the ear wall.

4. The vertical limiting structure of the prefabricated retaining plate of the pile-plate retaining wall according to claim 3 is characterized in that: The anchor bar corresponding to the first bolt hole is fixed to the main reinforcement bar of the pile body by spot welding.

5. The vertical limiting structure of the prefabricated retaining plate of the pile-plate retaining wall according to claim 2 is characterized in that: The second bolt hole is pre-buried at a predetermined position of the retaining plate.

6. The vertical limiting structure of the prefabricated retaining plate of the pile-plate retaining wall according to claim 2 is characterized in that: The bolt is a half-thread bolt.

7. A pile-sheet retaining wall, characterized in that: include: A plurality of pile bodies spaced apart in a predetermined direction, each of the pile bodies having a side close to and away from an adjacent pile body formed with an ear wall protruding outward; A plurality of retaining plates, wherein the retaining plates are arranged between two adjacent pile bodies, and the retaining plates between two adjacent pile bodies are stacked from bottom to top; A plurality of vertical limiting structures according to any one of claims 1 to 6, wherein the vertical limiting structures are arranged at positions corresponding to each of the retaining plates and the ear walls.

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