Fabricated soil nailing wall supporting structure

Abstract

The utility model relates to an assembly type soil nailing wall supporting structure which comprises a plurality of groups of prefabricated supporting units, the plurality of groups of supporting units can be mutually spliced to form a soil nailing wall body, each supporting unit comprises a wall plate and soil nails, through holes penetrating through the wall plate are formed in the wall plate, and the soil nails are used for being arranged in the through holes in a penetrating mode and fixing the wall plate on a side slope. The wallboard comprises a board body and a reinforcing mesh arranged in the board body, the board body comprises a prefabricated board body and filling grooves, the filling grooves are formed in the circumferential direction of the prefabricated board body at intervals, one end of each filling groove is of an open structure, and the reinforcing mesh is arranged in the prefabricated board body and the filling grooves at the same time; the prefabricated slab body of the supporting unit is spliced with the prefabricated slab body of the adjacent supporting unit, the filling groove of the supporting unit is spliced with the filling groove of the adjacent supporting unit, and the adjacent filling grooves can jointly form a closed filling area. According to the soil nailing wall supporting structure, measurement and line drawing are not needed during soil nailing hole positioning, a reinforcing mesh does not need to be bound independently, and construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to an assembled soil nailing wall support structure. Background Art

[0002] A soil nailing wall is formed by locally reinforcing natural soil and combining it with a shotcrete panel, forming a gravity retaining wall-like structure to resist the earth pressure behind the wall; thus maintaining the stability of the excavation surface, and this soil retaining wall is called a soil nailing wall. The soil nailing wall is set by drilling holes, inserting steel bars, and grouting, generally called mortar bolts, or angle steels and thick steel bars can be directly driven in to form soil nails. The construction method of the soil nailing wall is similar to the method of using shotcrete and wire mesh to reinforce rock masses in mine tunnels, so it is also called shotcrete and wire mesh reinforced slope or

[0003] Shotcrete and wire mesh retaining wall.

[0004] In the existing technology, the conventional construction method of the soil nailing wall requires multiple processes. Especially, the operations such as measuring and drawing lines for soil nail holes in the early stage and hanging and tying the steel wire mesh during the process take too long, affecting the construction efficiency and progress. Content of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide an assembled soil nailing wall support structure that can be prefabricated and reduce construction links.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is an assembled soil nailing wall support structure, which includes several groups of prefabricated support units, and several groups of support units can be spliced with each other to form a soil nailing wall body;

[0007] The support unit includes a wall panel and a soil nail. A through hole penetrating the wall panel is opened on the wall panel, and the soil nail is used to pass through the through hole and fix the wall panel on the slope;

[0008] The wall panel includes a plate body and a steel wire mesh built inside the plate body. The plate body includes a precast plate body and filling grooves. The filling grooves are arranged at intervals along the circumference of the precast plate body, and one end of the filling groove is an open structure. The steel wire mesh is arranged in both the precast plate body and the filling grooves.

[0009] The beneficial effects of the above technical solution are as follows: Through holes are reserved on the wall panels of the support units. Then, during the construction of the soil nailing wall, on the soil nailing wall body formed by splicing the support units, the through holes on the wall panels can replace the conventional measurement and positioning method of soil nail holes, reducing the working steps and operation time; the precast wall panels are provided with steel wire meshes, which also reduces the construction links of tying the steel wire meshes and improves the construction efficiency; at the same time, compared with the pouring method of the traditional soil nailing wall, the precast wall panel structure can make the thickness of the soil nailing wall uniform, and overall improves the aesthetics of the soil nailing wall.

[0010] Furthermore, the precast panel body of the wall panel is spliced with the precast panel bodies of adjacent wall panels, and the filling grooves of the wall panels are spliced with the filling grooves of adjacent wall panels. The filling grooves of adjacent wall panels can jointly form a closed filling area.

[0011] Beneficial effects: The precast panel body facilitates the size comparison during the splicing of the support units. The filling area formed by the splicing of the filling grooves can connect the spliced wall panels into an integral wall surface after pouring, further enhancing the integrity and structural strength of the soil nail wall support.

[0012] Furthermore, the steel mesh of the filling grooves of adjacent wall panels is fixedly connected.

[0013] Beneficial effects: All the steel meshes can be connected into an integral whole, further enhancing the structural strength of the formed soil nail wall.

[0014] A fastener is provided at the connection between the tail of the soil nail and the wall panel, and the fastener is used to connect the soil nail and the wall panel into one body.

[0015] Beneficial effects: The soil nail and the wall panel are connected into one body, increasing the connection strength between the soil nail and the wall panel on the basis of grouting fixation, and thus ensuring the firmness of the soil nail wall support.

[0016] Furthermore, the fastener includes a nut. A thread is provided at the tail of the soil nail, and the thread is adapted to the nut. The diameter of the nut is larger than the diameter of the through hole.

[0017] Beneficial effects: The nut can prevent the wall panel from detaching from the soil nail, further ensuring that the soil nail and the wall panel are connected into one body.

[0018] Both the precast panel body and the filling groove are rectangular in shape.

[0019] Beneficial effects: Facilitate processing and production. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the present utility model;

[0021] Figure 2 is Figure 1 the schematic structural diagram of the support unit in

[0022] Figure 3 is the schematic structural diagram of the wall panel;

[0023] Figure 4 is the schematic structural diagram of the soil nail;

[0024] In the figure: 1 - wall panel, 2 - soil nail, 3 - nut, 10 - through hole, 11 - plate body, 12 - steel mesh, 101 - precast panel body, 102 - filling groove, 201 - thread. Detailed Embodiments

[0025] The following further describes in detail a prefabricated soil nailing wall support structure of the present utility model in conjunction with the accompanying drawings and specific embodiments.

[0026] As Figures 1-4 shown, a prefabricated soil nailing wall support structure of the present utility model includes several groups of prefabricated support units, and several groups of support units can be spliced with each other to form a soil nailing wall body. The support unit includes a wall panel 1 and a soil nail 2. A through hole 10 penetrating the wall panel 1 is opened on the wall panel 1, and the soil nail 2 is used to pass through the through hole 10 and fix the wall panel 1 on the slope. The wall panel 1 includes a plate body 11 and a steel mesh 12 built inside the plate body 11. The plate body 11 includes a precast plate body 101 and a filling groove 102. The filling grooves 102 are arranged at intervals along the circumference of the precast plate body 101, and one end of the filling groove 102 is an open structure. The steel mesh 12 is arranged in both the precast plate body 101 and the filling groove 102. In the embodiment, both the precast plate body 101 and the filling groove 102 are rectangular, which is convenient for processing and manufacturing. During the construction of the soil nailing wall, the through hole 10 on the wall panel 1 can directly serve as the positioning point of the soil nail hole, without the need for additional measurement and marking, and the steel mesh 12 does not need to be separately tied, reducing the construction links and improving the construction efficiency.

[0027] In this embodiment, the precast plate bodies 101 of the wall panels 1 are spliced with the precast plate bodies 101 of adjacent wall panels 1, which is convenient for size comparison during the splicing of the wall panels 1 and can quickly level and form a wall surface during slope support. The filling grooves 102 of the wall panels 1 are spliced with the filling grooves 102 of adjacent wall panels 1. The filling grooves 102 of adjacent wall panels 1 can jointly form a closed filling area. After pouring, the filling area formed by the splicing of the filling grooves 102 can connect the spliced wall panels 1 into an integral wall surface, further improving the integrity and structural strength of the soil nailing wall support. At the same time, the steel meshes 12 of the filling grooves 102 of adjacent wall panels 1 are fixedly connected, enabling all the steel meshes 12 to be connected into an integral body, further enhancing the structural strength of the soil nailing wall after forming. During specific construction, welding or wire tying connection methods can be used.

[0028] In this embodiment, a fastener is provided at the connection between the tail of the soil nail 2 and the wall panel 1. The fastener is used to connect the soil nail 2 and the wall panel 1 into an integral body, increasing the connection strength between the soil nail 2 and the wall panel 1 on the basis of grouting fixation, and thus ensuring the firm support of the soil nailing wall; the fastener includes a nut 3. When the soil nail 2 is inserted into the slope, a thread 201 is provided at the tail exposed outside the wall panel 1. The nut 3 adapted to the thread 201 is connected to the tail of the soil nail 2, and the diameter of the nut 3 is greater than the diameter of the through hole 10. When stressed, the nut 3 can prevent the wall panel 1 from detaching from the soil nail 2, thereby connecting the soil nail 2 and the wall panel 1 into an integral body, further ensuring the firm support of the soil nailing wall.

[0029] When the utility model is in use, first, the wall panel 1 is laid on the slope. When laying, the precast panel body 101 of the wall panel 1 is aligned with the precast panel body 101 of the adjacent wall panel 1, and the soil nail wall surface is formed by splicing the wall panels 1. Then, soil nail holes are drilled at the through holes 10 of all the wall panels 1. After inserting the soil nails 2, grouting is carried out along the through holes 10 to fix the soil nails 2 until the through holes 10 are filled and then wait for hardening. The tail of the soil nail 2 exposed outside the wall panel 1 is provided with a thread 201, and a nut 3 adapted to the thread 201 is screwed on. The diameter of the nut 3 is larger than the diameter of the through hole 10. The nut 3 is screwed tightly until it abuts against the wall panel 1. The filling grooves 102 of the adjacent wall panels 1 can jointly form a closed filling area. The steel wire meshes 12 in the adjacent filling grooves 102 are tied together, and finally the filling area is leveled with concrete. After curing, the construction of the entire soil nail wall is completed.

[0030] The assembled soil nail wall support structure of the utility model has the following advantages: First, compared with the conventional construction method of the soil nail wall, it saves the operation procedures of measuring and drawing lines for the soil nail holes and tying the steel wire meshes 12, reduces the operation time, and improves the construction efficiency; Second, on the basis of grouting connection between the soil nails 2 and the wall panels 1, a fastener connection is added, which improves the connection strength between the soil nails 2 and the wall panels 1 and enhances the support effect of the soil nail wall; Third, the wall panels 1 are precast. After the filling grooves 102 are leveled later, the overall formed soil nail wall body has a uniform thickness and has a more regular architectural beauty.

[0031] In the above embodiment, the precast panel body of the support unit is spliced with the precast panel body of the adjacent support unit, and the filling groove of the support unit is spliced with the filling groove of the adjacent support unit. The adjacent filling grooves can jointly form a closed filling area. In other embodiments, the adjacent filling grooves of the support units may not be adjacent.

[0032] In the above embodiment, the steel wire meshes in the filling grooves of the adjacent support units are fixedly connected. In other embodiments, the steel wire meshes in the filling grooves of the adjacent support units are not fixedly connected.

[0033] In the above embodiment, a fastener is provided at the connection between the tail of the soil nail and the wall panel to connect the soil nail and the wall panel into one body. In other embodiments, no additional fastener is provided between the soil nail and the wall panel, and they are only connected by grouting in the through hole.

[0034] In the above embodiment, the fastener includes a nut. The tail of the soil nail is provided with a thread, and the thread is adapted to the nut. The diameter of the nut is larger than the diameter of the through hole. In other embodiments, the fastener includes a gasket and a nut. A through hole is opened in the center of the gasket, and the diameter of the gasket is larger than the diameter of the through hole.

[0035] In the above embodiment, both the precast panel body and the filling groove are rectangular. In other embodiments, the precast panel body and the filling groove can be other shapes, such as semi-circular.

[0036] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An assembled soil nail wall support structure, characterized in that It includes several groups of prefabricated support units, and several groups of support units can be spliced with each other to form a soil nail wall. The support unit includes a wall panel (1) and a soil nail (2). A through hole (10) penetrating the wall panel (1) is formed in the wall panel (1), and the soil nail (2) is used to pass through the through hole (10) and fix the wall panel (1) on the slope. The wall panel (1) includes a plate body (11) and a steel mesh (12) built inside the plate body (11). The plate body (11) includes a precast plate body (101) and a filling groove (102). The filling grooves (102) are arranged at intervals along the circumferential direction of the precast plate body (101), and one end of the filling groove (102) is an open structure. The steel mesh (12) is arranged in both the precast plate body (101) and the filling groove (102).

2. The prefabricated soil nailing wall support structure according to claim 1, characterized in that, The precast plate body (101) of the wall panel (1) is spliced with the precast plate body (101) of the adjacent wall panel (1), and the filling groove (102) of the wall panel (1) is spliced with the filling groove (102) of the adjacent wall panel (1). The filling grooves (102) of the adjacent wall panels (1) can jointly form a closed filling area.

3. The prefabricated soil nailing wall support structure according to claim 2, characterized in that, The steel meshes (12) of the filling grooves (102) of the adjacent wall panels (1) are fixedly connected.

4. The prefabricated soil nailing wall support structure according to claim 1, characterized in that A fastener is arranged at the connection between the tail of the soil nail (2) and the wall panel (1), and the fastener is used to connect the soil nail (2) and the wall panel (1) into one body.

5. The prefabricated soil nailing wall support structure according to claim 4, characterized in that, The fastener includes a nut (3). A thread (201) is arranged at the tail of the soil nail (2), and the thread (201) is adapted to the nut (3). The diameter of the nut (3) is larger than the diameter of the through hole (10).

6. The prefabricated soil nail wall support structure according to claim 1, characterized in that, Both the precast plate body (101) and the filling groove (102) are rectangular in shape.

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