Novel retaining wall structure

Abstract

The utility model discloses a novel retaining wall structure which solves the problem that in existing retaining wall construction, a prefabricated wallboard cannot be adjusted and installed at any angle. Comprising a prefabricated base, a prefabricated wallboard and a traction rope, the prefabricated base is installed at the base position of the retaining wall, an arc-shaped groove is formed in the side upper edge of the prefabricated base, an arc-shaped part at the lower edge of the prefabricated wallboard is movably matched with the arc-shaped groove, and a limiting edge is arranged on the upper side of the arc-shaped part of the prefabricated wallboard; the limiting edge is located on the front face of the prefabricated wallboard and is horizontally arranged, the gap between the limiting edge and the prefabricated base is filled with mortar, one end of the traction rope is fixed to the prefabricated wallboard, and the other end of the traction rope is provided with an anchoring part and is embedded in the rammed earth layer. Through implementation of the technology, construction and angle adjustment of the retaining wall prefabricated wall panel can be simply, conveniently and rapidly carried out, so that the construction cost is saved, and the construction period is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of retaining wall construction. Background Art

[0002] In civil engineering construction such as highway construction and residential area construction, retaining walls, which are a kind of auxiliary structure, need to be set up to meet engineering needs, such as sand fixation and landslide prevention.

[0003] The construction technology of retaining walls can be divided into wet construction and dry construction. The so-called wet construction refers to the use of formwork support and concrete cast-in-place technology, while the so-called dry construction refers to the use of special blocks, prefabricated modules stacking and wall construction.

[0004] The construction of existing prefabricated blocks requires high-level wall-building technology, the construction quality is difficult to guarantee, and the construction intensity is relatively high. Therefore, the technical route has evolved to form prefabricated retaining wall panels, that is, the use of assembled wall panel technology for construction. For example, CN219450808U introduces an assembled retaining wall structure, in which a base and a prefabricated baffle clamped on the base are included, that is, the two are connected by clamping, and this connection method cannot achieve the angle adjustability of the prefabricated baffle. In actual engineering, the retaining wall has a certain inclination angle (to ensure mechanical stability), and this angle has a certain deviation during the construction process. The technology in this technical document cannot well meet the construction needs of arbitrary angle adjustment. Utility Model Content

[0005] Based on the above technical needs, the utility model provides a new retaining wall structure to solve the problem that prefabricated wall panels in existing retaining wall construction cannot be adjusted and installed at any angle, aiming to improve construction convenience and construction speed.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A novel retaining wall structure comprises a prefabricated base, a prefabricated wall panel and a traction rope, and is characterized in that: the prefabricated base is installed at the base position of the retaining wall, the upper side edge of the prefabricated base is an arc-shaped groove, the arc portion at the lower edge of the prefabricated wall panel is movably matched with the arc-shaped groove, a limiting edge is arranged on the upper side of the arc portion of the prefabricated wall panel, the limiting edge is located on the front side of the prefabricated wall panel and is arranged horizontally, the gap between the limiting edge and the prefabricated base is filled with mortar, one end of the traction rope is fixed to the prefabricated wall panel, and the other end is provided with an anchor and buried in the rammed earth layer.

[0008] Furthermore, a narrow slit and a slot are provided on the top of the prefabricated wall panel, and the slot is a fixing slot for the end of the traction rope.

[0009] Furthermore, a short steel rod is fixed to one end of the traction rope, and the short steel rod is engaged with the slot.

[0010] Furthermore, the anchoring piece may be a rod-shaped or sheet-shaped steel piece.

[0011] Furthermore, the traction rope is a high-strength fiber rope or a steel wire rope or a belt rope.

[0012] Furthermore, the arc angle of the arc-shaped groove is in the range of 150 degrees to 180 degrees.

[0013] Furthermore, a Z-shaped PVC pipe is embedded in the prefabricated wall panel, and the upper end of the PVC pipe is located at the back of the prefabricated wall panel, and the lower end is located at the front of the prefabricated wall panel.

[0014] Furthermore, rigid connectors with a T-shaped cross section are provided on both sides of the two prefabricated wall panels.

[0015] Furthermore, it also includes a prefabricated top plate arranged on the arc-shaped portion of the upper edge of the prefabricated wall panel, and the two are movably matched.

[0016] Furthermore, the prefabricated base and / or the prefabricated top plate are provided with drainage grooves.

[0017] The beneficial effects of the utility model are:

[0018] The implementation of this technology can easily and quickly carry out the construction and angle adjustment of the retaining wall prefabricated wall panels, thereby saving construction costs and shortening construction period. By adjusting the setting angle of the prefabricated wall panels, the construction convenience and durability of the retaining wall are improved.

[0019] After the implementation of this technology, the structural reliability of the retaining wall is high, especially the caulking operation at the limiting edges, which further improves the stability of the retaining wall.

[0020] After the implementation of this technology, the wet joints between prefabricated wall panels have higher connection strength, and the mortar grouting operation is simple and easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of the prefabricated base.

[0022] Figure 2 This is a three-dimensional diagram of a prefabricated wall panel.

[0023] Figure 3 This is a schematic diagram of the installation of the first embodiment.

[0024] Figure 4 This is a cross-sectional view of a precast wall panel.

[0025] Figure 5 This is a cross-sectional view of a precast wall panel.

[0026] Figure 6 Schematic diagram of steel bar arrangement in prefabricated wall panels.

[0027] Figure 7 This is a structural diagram of the implementation of Example 1.

[0028] Figure 8 This is a structural diagram of the implementation of Example 2.

[0029] In the figure:

[0030] 10 prefabricated base, 11 arc groove, 12 drainage trough,

[0031] 20 prefabricated wall panel, 21 narrow seam, 22 slot, 23 limiting edge, 24 PVC pipe, 25 wet joint connection groove, 26 connector,

[0032] 30 traction rope, 31 short steel rod, 32 anchor,

[0033] 40 prefabricated top plate,

[0034] 00 rammed earth layer, 01 highway pavement. DETAILED DESCRIPTION

[0035] This embodiment introduces a new retaining wall structure that is easy to construct quickly. The retaining wall uses reinforced concrete prefabricated modules and is quickly constructed in conjunction with a crane and an assembled construction method. The innovation is that the prefabricated wall has an adjustable angle during installation.

[0036] The following is attached to the instruction manual Figure 1 To Attachment Figure 7 Implementation method 1 is described in detail.

[0037] After the construction is completed, the structure includes a prefabricated base 10, a prefabricated wall panel 20, and a traction rope 30. The retaining wall is located at the slope outside the rammed earth layer 00, and the road surface 01 is below. The prefabricated wall and the prefabricated base are matched at an arc surface and have a pivot connection relationship to facilitate the angle adjustment of the prefabricated wall panel during the installation process.

[0038] The prefabricated base 10 is installed at the base of the retaining wall. The prefabricated base has an arc groove prefabricated at the upper edge of the side. The arc groove is the installation groove of the prefabricated wall panel. The arc angle of the arc groove 11 is about 160 degrees. More specifically, it is in the range of 150 degrees to 180 degrees. Figure 1For example, when it is 160 degrees, the prefabricated wall panel has an adjustment space within the 30-degree angle, forming a slope angle β of 90 to 120 degrees. Within this range, the specific angle can be adjusted according to the construction site, that is, the installation angle of the prefabricated wall panel can be adjusted.

[0039] A drainage groove 12 is provided on the upper surface of the prefabricated base 10 , and the drainage groove is provided along the length direction of the prefabricated base.

[0040] The prefabricated wall panel 20 is a prefabricated reinforced concrete component with a steel mesh inside. The arrangement of the steel mesh is shown in FIG. Figure 6 .

[0041] The prefabricated wall panel 20 has the following structural features in terms of spatial structure: an arc portion 21, which is located at the lower edge position, and the arc portion is of the same size as the arc groove and can be flexibly matched, that is, the angle can be adjusted within a certain angle range. A long narrow slit 21 is arranged vertically at the top of the prefabricated wall panel, and a slot 22 is arranged at the lowest point of the narrow slit, and the slot is formed by being concave inward from the front of the prefabricated wall panel. The slot is used to fix the end of the traction rope 30, specifically, a traction rope made of high-strength fiber rope or steel wire rope, or a narrow ribbon rope. A short steel rod 31 is fixed at one end of the traction rope 30, and the short steel rod is engaged with the slot, and an anchor 32 is fixed at the other end. The anchor can be a rod-shaped or sheet-shaped steel part. The anchor is buried in the compacted layer during the construction stage, and the traction rope is in a tensioned state, which has an auxiliary fixing action for the prefabricated wall panel.

[0042] A limiting edge 23 is provided on the upper side of the arc portion of the prefabricated wall panel 20. The limiting edge is located on the front of the prefabricated wall panel and is arranged horizontally. The limiting edge can prevent the prefabricated wall panel from tilting outward during the installation stage, and has a safety protection function. After the installation of the prefabricated wall panel is completed, mortar is filled between the limiting edge and the prefabricated base. After solidification, the mortar has the function of fixing the position of the prefabricated wall panel, and the mortar filling process is simple, meeting the requirements of rapid construction.

[0043] The Z-shaped PVC pipe 24 is embedded in the prefabricated wall panel 20. It is a small-diameter pipe not larger than 50 mm and is vertically arranged. The upper end of the PVC pipe is located on the back of the prefabricated wall panel, and the lower end is located on the front of the prefabricated wall panel. Its function is to guide the seepage water in the rammed earth layer inside the prefabricated wall panel to the outside, forming a seepage channel.

[0044] T-shaped wet joint connection grooves 25 are provided on both sides of the prefabricated wall panels. Mortar is poured into the wet joint connection grooves and short steel bars are embedded therein. The short steel bars span the two prefabricated wall panels and form rigid connectors 26 after solidification to improve the shear strength of the joints.

[0045] The construction process of this retaining wall is as follows:

[0046] First, the slope is arranged and compacted, C20 plain concrete is used to level the bottom of the prefabricated base, then the line is drawn and the prefabricated base is installed at the construction location, and then the prefabricated wall panels are hoisted and installed in the arc groove of the prefabricated base. The base and the wall panels are arranged in a staggered manner, and then the traction rope is arranged and compacted, and the joints between the two prefabricated wall panels are leveled so that the grouting mortar connects the wet joints. Note that in the process of pouring mortar, several short steel bars are thrown in batches to improve the shear resistance of the wet joints.

[0047] After all the construction is completed, fill the mortar between the limiting edge and the prefabricated base to complete the construction.

[0048] Another advantage of the structure of the retaining wall is that the prefabricated wall panels exert a lateral downward pressure on the prefabricated base, which has a higher reliability according to gravity mechanics analysis.

[0049] The following is attached to the instruction manual Figure 8 The second implementation method is described in detail.

[0050] The second embodiment is a design with a roadway on the top, and the retaining wall acts as a roadbed slope. The difference between the retaining wall and the first embodiment is that the upper edge of the prefabricated wall panel is also an arc-shaped portion, and a prefabricated top plate 40 is arranged above the corresponding position. The prefabricated top plate has a similar structure to the prefabricated base below, and the prefabricated top plate and the top of the prefabricated wall panel are matched through an arc surface to meet the requirements of use. The other structures are the same as those of the first embodiment and will not be repeated.

[0051] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements to the present invention by relevant technical personnel in the field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A novel retaining wall structure, comprising a prefabricated base, prefabricated wall panels and traction ropes, characterized in that: The prefabricated base is installed at the base position of the retaining wall. The upper side edge of the prefabricated base is an arc-shaped groove. The arc portion at the lower edge of the prefabricated wall panel is movably matched with the arc-shaped groove. A limiting edge is arranged on the upper side of the arc portion of the prefabricated wall panel. The limiting edge is located on the front side of the prefabricated wall panel and is arranged horizontally. The gap between the limiting edge and the prefabricated base is filled with mortar. One end of the traction rope is fixed to the prefabricated wall panel, and the other end is provided with an anchor and buried in the rammed earth layer.

2. The novel retaining wall structure according to claim 1 is characterized in that: A narrow slit and a clamping groove are arranged on the top of the prefabricated wall panel, and the clamping groove is a fixing groove for the end of the traction rope.

3. The novel retaining wall structure according to claim 2 is characterized in that: A short steel rod is fixed at one end of the traction rope, and the short steel rod is engaged with the clamping slot.

4. The novel retaining wall structure according to claim 1 is characterized in that: The anchoring piece may be a rod-shaped or sheet-shaped steel piece.

5. The novel retaining wall structure according to claim 1 is characterized in that: The traction rope is a high-strength fiber rope or a steel wire rope or a belt rope.

6. The novel retaining wall structure according to claim 1 is characterized in that: The arc angle of the arc groove is in the range of 150 degrees to 180 degrees.

7. The novel retaining wall structure according to claim 1 is characterized in that: A Z-shaped PVC pipe is embedded in the prefabricated wall panel, an upper end of the PVC pipe is located at the back of the prefabricated wall panel, and a lower end of the PVC pipe is located at the front of the prefabricated wall panel.

8. The novel retaining wall structure according to claim 1 is characterized in that: Rigid connectors with T-shaped cross sections are arranged on both sides of the two prefabricated wall panels.

9. The novel retaining wall structure according to claim 1 is characterized in that: It also includes a prefabricated top plate arranged on the arc-shaped portion of the upper edge of the prefabricated wall panel, and the two are movably matched.

10. The novel retaining wall structure according to claim 9, characterized in that: The prefabricated base and / or the prefabricated top plate are provided with drainage grooves.

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