A slope surface soil nail wall surface layer structure

Abstract

A slope soil-nailing wall surface layer structure is assembled by a plurality of surface layer units, the surface layer unit is mainly assembled by an anchoring node, an I-beam keel and a panel, the anchoring node is welded by two upper and lower steel plates, a steel pipe connecting the centers of the two upper and lower steel plates and four rib plates outside the wall of the steel pipe, the I-beam lower flange is provided with a rotatable baffle on the front face and a fixed baffle on the back face, and the panel is clamped between the rotatable baffle and the fixed baffle. The present application is prefabricated in the factory and assembled on site, which can effectively solve the dust problem of the traditional soil-nailing wall surface layer construction site and reduce pollution. At the same time, the surface layer structure is connected by bolts, which is convenient, simple and efficient, solves the problem of long construction period on site, and is suitable for some supporting projects with complex site conditions. The whole is made of steel, which is light, can be removed after use, recycled, saves a lot of materials, and can effectively reduce the deformation of the slope body.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of civil engineering foundation pit support technology, in particular to a kind of assembled steel structure soil nailing wall surface layer structure. BACKGROUND

[0002] At present, when the slope surface of the general soil nailing wall support structure is constructed, the slope surface steel mesh is fixed after the construction of soil nailing, and is connected with the soil nailing together, and then the concrete is sprayed by using the anchor spraying machine. Dry spraying machine, large air compressor and other tools need to be equipped during construction. The raw materials used in dry spraying machine operation are bulk cement, sand and gravel, and the dust pollution at the construction site is more serious. When using the more environmentally friendly wet spraying, the equipment is large, and the concrete used needs to be transported by using a concrete tank truck, which has large volume and weight. When the slope height is high and the site is small, or the traffic is not convenient, the equipment is not convenient to use, that is, it is more difficult to apply to some support projects with complex site conditions. In addition, the traditional soil nailing wall has long construction period, difficult site management and difficult quality guarantee. In addition, the weight of the traditional soil nailing wall is heavy, and it cannot be removed after use. When the foundation pit is backfilled, the entire soil nailing wall structure can only be abandoned and buried in the soil, causing a large amount of material waste. SUMMARY

[0003] In order to overcome the problems in the prior art, the present application provides an assembled steel structure soil nailing wall surface layer structure to realize the purposes of reusability, light weight, green environmental protection, fast construction speed and low cost.

[0004] In order to achieve the above-mentioned application purposes, the present application provides an assembled slope soil nailing wall surface layer structure, characterized in that: the surface layer structure is connected by a plurality of surface layer units, the surface layer unit is mainly composed of an anchoring node, an I-beam and a panel, the anchoring node is welded by two steel plates, a steel pipe connecting the centers of the two steel plates and four rib plates on the outer wall of the steel pipe, the four rib plates are arranged in a cross shape, and the end of the I-beam is connected with the rib plate of the anchoring node.

[0005] The front surface and the back surface of the lower flange of the I-beam are provided with rotatable flaps, and the panel is clamped between the front and back rotatable flaps.

[0006] Further, the four corners of the steel plate are provided with a notch of the same size.

[0007] Further, each rib plate on the anchoring node is provided with a bolt hole, and the I-beam is also provided with a bolt hole, and the I-beam and the rib plate are fixed by the front and rear connecting plates and bolts.

[0008] Further, the web of the I-beam is designed in a honeycomb shape and is slotted to the lower flange of the I-beam for drainage.

[0009] Further, the rotatable baffle clamping panel end is provided with a handle.

[0010] Further, the panel is in the same plane with the I-beam lower flange.

[0011] The assembled type steel structure soil nailing wall surface layer structure can effectively solve the dust problem in the construction site of the traditional soil nailing wall surface layer, and reduce environmental pollution. Meanwhile, the assembled type steel structure soil nailing wall surface layer is connected through bolts, which is convenient, simple and efficient, and can not only solve the problem of long construction period of the traditional soil nailing wall surface layer, but also effectively solve the problems of inconvenient transportation of concrete and use of spraying equipment caused by small site or inconvenient transportation, and is suitable for some supporting projects with complex site conditions. In addition, the whole assembled type steel structure soil nailing wall surface layer is made of steel, and the whole surface layer is lighter than the traditional soil nailing wall, and can be removed after use, recycled, solves the problem that the traditional soil nailing wall structure cannot be removed after use, and can effectively reduce the deformation of the slope body. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a decomposition diagram of the soil nailing wall surface layer structure of the present application;

[0013] Figure 2 It is a node detail diagram of the assembled type steel structure soil nailing wall surface layer;

[0014] Figure 3 It is an assembly diagram of the soil nailing wall surface layer structure of the present application;

[0015] Figure 4 It is an overall effect diagram of the soil nailing wall surface layer structure of the present application.

[0016] In the figure: 1 anchor node, 2 I-beam, 3 panel, 4 connecting plate, 5 connecting bolt, 6 rotatable baffle, 7 fixed baffle, 8 fixed nut, 9 soil nailing steel bar, 101 steel plate, 102 rib plate, 103 steel pipe, 104 bolt hole, 105 notch, 201 lower flange, 202 groove, 203 web, 601 handle. DETAILED DESCRIPTION

[0017] The present application will be described in detail below with reference to the drawings, wherein the front and back of the I-beam refer to the front of the I-beam from the inside of the surface layer frame surrounded by the I-beam, and the back of the I-beam refers to the outside of the surface layer frame surrounded by the I-beam; the front and back of the lower flange of the I-beam refer to the front of the lower flange of the I-beam from the top, and the other side is the back.

[0018] REFERENCE Figures 1-4The application provides a slope soil-nail wall surface layer structure, which is connected by a plurality of surface layer units, wherein the surface layer unit is mainly assembled by an anchoring node 1, an I-beam 2 and a surface plate 3, the anchoring node is welded by two steel plates 101, a steel pipe 103 connecting the centers of the two steel plates and four rib plates 102 on the outer wall of the steel pipe, and the four rib plates 102 are arranged in a cross shape.

[0019] Two vertical bolt holes 104 are formed in the rib plate 102 of the anchoring node 1 and the end of the web 203 of the I-beam 2, four connecting bolts 5 are passed through the bolt holes of the anchoring node 1, the I-beam 2 and the connecting plate 4 and are screwed tightly, and the I-beam 2 and the anchoring node 1 are fixed together.

[0020] The I-beam lower flange 201 is provided with a rotatable baffle 6 on the front surface and a fixed baffle 7 on the back surface, and the rotatable baffle clamping surface of the panel is provided with a handle 601 for convenient operation.

[0021] The surface plate 3 is placed in the frame surrounded by the I-beam 2 and is clamped between the rotatable baffle 6 and the fixed baffle 7, the four corners are matched with the notches 105, and the surface plate 3 is in the same plane with the I-beam lower flange 201.

[0022] The web of the I-beam is designed in a honeycomb shape, and a groove 202 is formed to the I-beam lower flange 201 for drainage.

[0023] During on-site assembly, first, the steel pipe 103 of the anchoring node 1 is sleeved on the threaded soil-nail steel bar 9, and a fixed nut 8 matched with the size of the soil-nail steel bar is screwed tightly to fix the anchoring node 1 and the soil-nail steel bar 9 together. Then, four fixed bolts 5 are passed through the bolt holes of the anchoring node 1, the I-beam 2 and the connecting plate 4 and are screwed tightly to fix the I-beam 2 and the anchoring node 1 together. Finally, the surface plate is placed in the surface layer frame surrounded by the I-beam, is in the same plane with the I-beam lower flange 201, the rotatable baffle 6 arranged on the I-beam lower flange 2 is rotated by 90 degrees to fix the surface plate, and the assembly of one surface layer unit is completed.

[0024] According to the actual needs of the project, a plurality of surface layer units are sequentially assembled according to the above operation to assemble the complete soil-nail wall surface layer structure of various sizes.

[0025] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. The embodiments should therefore be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims with respect to the figures of the application.

Claims

1. A prefabricated slope soil nailing wall surface structure, characterized in that: The surface structure is composed of several surface units connected together. Each surface unit is mainly assembled from anchoring nodes, I-beam keels, and panels. The anchoring node is welded together from two upper and lower steel plates, a steel pipe connecting the center of the two steel plates, and four ribs on the outer wall of the steel pipe. The four ribs are arranged in a cross shape. The end of the I-beam keel is connected to the ribs of the anchoring node. The steel pipe of the anchoring node is fitted onto the threaded soil nail reinforcement and tightened with a fixing nut that matches the size of the soil nail reinforcement to fix the anchoring node and the soil nail reinforcement to each other. The lower flange of the I-beam keel has a rotatable baffle on the front and a fixed baffle on the back. The panel is clamped between the rotatable baffle and the fixed baffle.

2. The prefabricated slope soil nailing wall surface structure according to claim 1, characterized in that: The steel plate has a notch of the same size at each of its four corners.

3. The prefabricated slope soil nailing wall surface structure according to claim 1, characterized in that: Each rib plate on the anchoring node has bolt holes, and the I-beam keel also has bolt holes. The I-beam keel and the rib plate are fixed together by connecting plates and bolts.

4. The prefabricated slope soil nailing wall surface structure according to claim 1, characterized in that: The web of the I-beam keel adopts a honeycomb design and is grooved to the lower flange of the I-beam keel.

5. The prefabricated slope soil nailing wall surface structure according to claim 1, characterized in that: The rotatable baffle clamping panel is provided with a handle.

6. The prefabricated slope soil nailing wall surface structure according to claim 1, characterized in that: The panel and the lower flange of the I-beam keel are on the same plane.

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