Light assembly type filling retaining wall structure

Abstract

The utility model discloses a light split mounting type filling retaining wall structure, and belongs to the technical field of geotechnical engineering. The retaining wall comprises a retaining wall body, the retaining wall body is formed by mutually splicing a plurality of groups of plastic templates, and the outer side of the retaining wall body is provided with a limiting vertical circular steel beam and a fixed square steel cross beam; an inflatable sealing rubber pipe is arranged on the inner side of the retaining wall body. The retaining wall is low in manufacturing cost, work amount and material consumption, construction cost is remarkably reduced, the retaining wall body can be recycled, after a filling body is solidified, the plastic formwork, the limiting vertical circular steel beam and the fixing square steel beam are recycled through pressure relief and deflation of the inflatable sealing rubber pipe, and the retaining wall body can be recycled. Therefore, the retaining wall structure which realizes rapid assembly of the filling retaining wall and repeated recycling of the main materials through low-strength field operation, cheap materials and a simple and convenient process is provided.

Description

Technical Field

[0001] This utility model relates to the field of geotechnical engineering technology, and more specifically, to a lightweight prefabricated filling retaining wall structure. Background Technology

[0002] In the existing technology, Chinese patent CN201310649829.X, "A device for cemented backfilling retaining wall for tailings in underground mines," discloses a retaining wall structure using "gabion mesh boxes filled with mining waste rock + geotextile / dewatering pipes." Compared with traditional retaining walls, this method is simple to construct, has good load-bearing performance, and high safety. However, it has drawbacks in actual use, including a long construction cycle (the installation of the bottom dewatering pipes and the construction and curing of the wall foundation exceed 12 hours, and the beams can only be removed one month after the backfilling is completed), high on-site labor intensity (more than ten cubic meters of waste rock need to be filled on-site for the gabion mesh boxes, especially the upper backfilling which can only be done manually, and the amount of gap filling is large), and relatively complex processes due to the large amount of materials consumed (metal mesh, filter cloth dewatering pipes, concrete and cement mortar, etc.).

[0003] Chinese patent CN201410658272.0 – “A Demountable Filling Retaining Wall”. This patent discloses a retaining wall composed of multiple sets of sandbags and multiple fasteners. The main drawbacks are: high material consumption and complex process (prefabricated sandbags, four sets of fasteners of different specifications, four sets of folding plates of different specifications, and multiple interlaced concrete pouring), high labor intensity (sandbag preparation and on-site stacking, installation of multiple sets of fasteners, and the need for on-site welding), poor retaining wall quality, and safety hazards after disassembly (after removing the fasteners, the wall is full of bagged, unbonded loose sand, and there are even cases where the sandbags are broken. Although the retaining wall plays a role in sealing and dehydrating in the early stage, it brings the safety hazard of the wall collapsing on site later).

[0004] Chinese Patent CN202410580548.1 – “A Movable Propulsion Airbag Steel Structure Inflatable Retaining Wall and Construction Method”. This patent discloses a movable vehicle-mounted airbag as an inflatable retaining wall. While it has the advantages of simple and quick process, reusability, and low material consumption, it also has the disadvantages of high initial investment in the retaining wall and the need for a separate towing vehicle.

[0005] Chinese patent CN202010853378.1 - "A novel detachable recyclable filling retaining wall construction device and method" has the drawbacks of high material consumption, relatively complex process, and high labor intensity.

[0006] In summary, existing retaining wall structures all suffer from problems such as complex construction processes, high construction difficulty, long construction periods, and high construction costs. Utility Model Content

[0007] 1. Technical problem to be solved by the utility model

[0008] To address the shortcomings and deficiencies of existing technologies, this utility model provides a lightweight, modular, infill retaining wall structure. This utility model is inexpensive, with low engineering workload and material consumption, significantly reducing construction costs. The retaining wall body is recyclable. After the filling material solidifies, the plastic template, limiting vertical circular steel beam, and fixing square steel crossbeam are released and recovered through an inflatable sealing hose. Therefore, this utility model provides a retaining wall structure that enables rapid assembly of infill retaining walls and repeated recycling of main materials with low-intensity on-site operations, inexpensive materials, and simple processes.

[0009] 2. Technical Solution

[0010] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0011] This utility model discloses a lightweight prefabricated filling retaining wall structure, including a retaining wall body, which is composed of multiple sets of plastic templates spliced ​​together. The outer side of the retaining wall body is provided with a limiting vertical circular steel beam and a fixing square steel horizontal beam.

[0012] An inflatable sealing tube is installed on the inner side of the retaining wall.

[0013] Furthermore, an observation port is provided on the upper part of the retaining wall.

[0014] Furthermore, the limiting vertical circular steel beam is set between the retaining wall and the fixed square steel beam. The limiting vertical circular steel beam and the fixed square steel beam are fixed with bolts or wires, and the vertical circular steel beam and the fixed square steel beam are connected to each other to form a "well" shaped structure.

[0015] Furthermore, the inflatable sealing tubes are attached to both ends of the inner side of the retaining wall from bottom to top.

[0016] Furthermore, the inflatable sealing tube is filled between the retaining wall and the surrounding rock of the tunnel. The inflatable sealing tube is long and narrow, and its length is the same as the height of the retaining wall. In operation, the two inflatable sealing tubes are inflated to achieve air expansion fixation and sealing between the retaining wall and the surrounding rock of the tunnel.

[0017] Furthermore, a roadway support structure is provided on the inner side of the surrounding rock of the roadway, the outer side of the retaining wall is the external connecting roadway of the stope, and the inner side of the retaining wall is the goaf of the stope.

[0018] Furthermore, two vertical boreholes are respectively drilled at the top and bottom of the external connecting roadway of the mine, with a depth of not less than 0.5m, and the upper and lower ends of the limiting vertical circular steel beam are inserted into the vertical boreholes.

[0019] Furthermore, a limiting groove is excavated at the bottom of the entrance to the goaf of the mine, and the thickness and width of the limiting groove are consistent with the specifications of the retaining wall, and the minimum depth of the limiting groove is not less than 0.1m.

[0020] Furthermore, the plastic template is provided in multiple sets, and the multiple sets of plastic templates are stacked horizontally and vertically from bottom to top to form a retaining wall. The multiple sets of plastic templates are connected to each other by bolts.

[0021] 3. Beneficial effects

[0022] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0023] This utility model has low cost, low engineering workload and low material consumption, significantly reducing construction costs. The retaining wall can be recycled. After the filling material solidifies, the pressure is released and the plastic template, as well as the limiting vertical round steel beam and the fixing square steel beam, are loosened and recycled through the inflatable sealing rubber tube. Therefore, it provides a retaining wall structure that can achieve rapid assembly of filling retaining walls and repeated recycling of main materials with low-intensity on-site operation, inexpensive materials and simple process. Attached Figure Description

[0024] Figure 1 This is a front view of the present invention;

[0025] Figure 2 This is a side view of the present invention;

[0026] Figure 3 This is a top view of the present invention;

[0027] Figure 4 This is a partially enlarged view of the present invention.

[0028] In the diagram: 1. Surrounding rock of the roadway; 2. Roadway support structure; 3. Observation port; 4. Plastic template; 5. Fixed square steel beam; 6. Limiting vertical round steel beam; 7. Limiting bottom trench; 8. Inflatable sealing hose; 9. External connecting roadway of the stope; 91. Vertical borehole; 10. Retaining wall; 11. Stope goaf. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0030] Example 1

[0031] from Figure 1-4 As can be seen, a lightweight prefabricated filling retaining wall structure of this embodiment includes a retaining wall body 10, which is formed by splicing together multiple sets of plastic templates 4. A limiting vertical circular steel beam 6 and a fixing square steel crossbeam 5 are provided on the outer side of the retaining wall body 10.

[0032] An inflatable sealing tube 8 is installed on the inner side of the retaining wall 10.

[0033] An observation opening 3 is provided at the upper part of the retaining wall 10. The space of two templates at the upper part of the retaining wall 10 is left open as the retaining wall observation opening 3 and the drainage outlet before filling. The opening is closed before the top filling operation.

[0034] The roadway support 2 is installed on the inner side of the surrounding rock 1, the outer side of the retaining wall 10 is the external connecting roadway 9 of the stope, and the inner side of the retaining wall 10 is the goaf area 11 of the stope.

[0035] Two vertical boreholes 91 are drilled at the top and bottom of the external connecting roadway 9 of the mine, with a depth of not less than 0.5m. The upper and lower ends of the limiting vertical circular steel beam 6 are inserted into the vertical boreholes 91, and the diameter of the limiting vertical circular steel beam 6 corresponds to the diameter of the vertical boreholes 91.

[0036] A limiting groove 7 is excavated at the bottom of the passage of the goaf 11 in the mine. The thickness and width of the limiting groove 7 are the same as those of the retaining wall 10. The minimum depth of the limiting groove 7 is not less than 0.1m.

[0037] Multiple sets of plastic templates 4 are set up, and multiple sets of plastic templates 4 are stacked horizontally and vertically from bottom to top to form a retaining wall 10. The multiple sets of plastic templates 4 are connected to each other by bolts.

[0038] The limiting vertical circular steel beam 6 is set between the retaining wall 10 and the fixed square steel beam 5. The limiting vertical circular steel beam 6 and the fixed square steel beam 5 are fixed with bolts or wires. The vertical circular steel beam 6 and the fixed square steel beam 5 are connected to each other to form a "well" shaped structure.

[0039] The inflatable sealing tube 8 is pasted on both ends of the inner side of the retaining wall 10 from bottom to top; the inflatable sealing tube 8 is filled between the retaining wall 10 and the surrounding rock 1 of the tunnel. The inflatable sealing tube 8 is long and strip-shaped, and its length is consistent with the height of the retaining wall 10. In the working state, the two inflatable sealing tubes 8 are inflated respectively to achieve air expansion fixation and sealing between the retaining wall 10 and the surrounding rock 1 of the tunnel.

[0040] The production cycle of this utility model can be shortened to within 0.5 days, the material recycling cycle is 0.5 days, the process is simplified as follows, and the entire process can be operated by 2 people;

[0041] Filling preparation: Drilling holes and slots → Lowering columns and fixing horizontal steel → Assembling retaining walls → Installing sealing hoses and inflating and fixing them;

[0042] Main material recycling: Depressurize and release air → Loosen and remove formwork → Remove fixed beams.

[0043] This utility model has low cost, low engineering volume and low material consumption, significantly reducing construction costs. The retaining wall 10 can be recycled. After the filling material solidifies, the pressure is released and the plastic template 4, as well as the limiting vertical round steel beam 6 and the fixed square steel beam 5, are loosened and recycled through the inflatable sealing tube 8.

[0044] This invention provides a retaining wall structure that enables rapid assembly of filling retaining walls and reuse of main materials with low-intensity on-site operations, inexpensive materials, and simple processes.

[0045] Example 2

[0046] from Figure 1-4 As can be seen, the construction procedure of the lightweight prefabricated infill retaining wall structure in this embodiment is as follows:

[0047] Step 1: Preparation stage: Prepare materials, equipment and site. Based on the actual measured tunnel area, prepare enough plastic templates for retaining walls 4, vertical circular steel beams for limiting 6, square steel beams for fixing 5 and inflatable sealing hoses 8, and transport them to the site; arrange for drilling rigs to excavate vertical boreholes 91 and limiting bottom trenches 7 and clean the site.

[0048] Step 2: Bracket fixing: Install two limiting vertical round steel beams 6 and fixing square steel beams 5 to form a "well" shaped structure as auxiliary fixing beams in the horizontal direction of the retaining wall 10;

[0049] Step 3: Assembly of retaining wall 10: On-site, plastic templates 4 are stacked and connected horizontally and vertically from bottom to top to form the cross section of the retaining wall 10; two plastic templates 4 are left empty in the upper part of the retaining wall 10 as observation ports 3 for the early stage of filling, and the observation ports 3 also serve as drainage ports.

[0050] Step 4: Sealing and fixing: Attach inflatable sealing tubes 8 from bottom to top on both ends of the inner side of the retaining wall 10. After the retaining wall 10 is installed, inflate the inflatable sealing tubes 8 to make the retaining wall 10 and the surrounding rock of the roadway 1 compact and fixed, and to achieve a seal.

[0051] Step 5: Test the effect: A section can be temporarily cut out from the goaf area 11 to the retaining wall 10, and water exceeding 10 meters in height of the retaining wall can be injected to test its sealing effect;

[0052] Step Six: Material Recycling: After the filling material in the goaf 11 of the mine has solidified, the plastic template 4, the inflatable sealing hose 8, the vertical circular steel beam 6, and the fixed square steel beam 5 are depressurized and loosened through the inflatable sealing hose 8.

[0053] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A lightweight prefabricated infill retaining wall structure, comprising a retaining wall body (10), characterized in that: The retaining wall (10) is made of multiple sets of plastic templates (4) spliced ​​together. The outer side of the retaining wall (10) is provided with a limiting vertical round steel beam (6) and a fixing square steel beam (5). An inflatable sealing tube (8) is provided on the inner side of the retaining wall (10).

2. The lightweight prefabricated infill retaining wall structure according to claim 1, characterized in that: An observation port (3) is provided on the upper part of the retaining wall (10).

3. The lightweight prefabricated infill retaining wall structure according to claim 1, characterized in that: The limiting vertical round steel beam (6) is set between the retaining wall (10) and the fixed square steel beam (5). The limiting vertical round steel beam (6) and the fixed square steel beam (5) are fixed with bolts or wires. The vertical round steel beam (6) and the fixed square steel beam (5) are connected to each other to form a "well" shaped structure.

4. The lightweight prefabricated infill retaining wall structure according to claim 1, characterized in that: The inflatable sealing tube (8) is attached from bottom to top to both ends of the inner side of the retaining wall (10).

5. A lightweight prefabricated infill retaining wall structure according to claim 4, characterized in that: The inflatable sealing tube (8) is filled between the retaining wall (10) and the surrounding rock (1) of the tunnel. The inflatable sealing tube (8) is long and the length of the inflatable sealing tube (8) is the same as the height of the retaining wall (10). In the working state, the two inflatable sealing tubes (8) are inflated respectively to achieve air expansion fixation and sealing between the retaining wall (10) and the surrounding rock (1) of the tunnel.

6. A lightweight prefabricated infill retaining wall structure according to claim 5, characterized in that: The roadway surrounding rock (1) is provided with a roadway support (2) on the inner side, the retaining wall (10) is the external connecting roadway (9) of the mine, and the retaining wall (10) is the goaf area (11) of the mine.

7. A lightweight prefabricated infill retaining wall structure according to claim 6, characterized in that: The top and bottom of the external connecting roadway (9) of the mine are provided with two vertical drill holes (91), with a depth of not less than 0.5m. The upper and lower ends of the limiting vertical circular steel beam (6) are inserted into the vertical drill holes (91).

8. A lightweight prefabricated infill retaining wall structure according to claim 6, characterized in that: A limiting groove (7) is excavated at the bottom of the entrance of the goaf area (11) of the mine. The thickness and width of the limiting groove (7) are consistent with the specifications of the retaining wall (10). The minimum depth of the limiting groove (7) is not less than 0.1m.

9. A lightweight prefabricated infill retaining wall structure according to claim 1, characterized in that: The plastic template (4) is provided in multiple sets. The multiple sets of plastic templates (4) are stacked horizontally from bottom to top and vertically layer by layer to form a retaining wall (10). The multiple sets of plastic templates (4) are connected to each other by bolts.

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