Assembled type anchor rod frame beam structure containing EPS elastic cushion layer and suitable for expansive soil slope

A technology of elastic cushion and frame beam, which is applied in foundation structure engineering, sheet pile walls, excavation, etc., can solve the problems of high cost, difficulty in prefabrication of cross lattice beam components, failure and other problems, and achieve low cost and reduce manufacturing difficulty , The effect of simple construction method

Active Publication Date: 2021-02-26
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the entire frame beams are only connected by anchors. If the anchors are damaged, the entire structure will fail under the action of the huge expansion force of the expansive soil, and the prefabrication of the cross lattice beam members is difficult and costly.

Method used

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  • Assembled type anchor rod frame beam structure containing EPS elastic cushion layer and suitable for expansive soil slope
  • Assembled type anchor rod frame beam structure containing EPS elastic cushion layer and suitable for expansive soil slope
  • Assembled type anchor rod frame beam structure containing EPS elastic cushion layer and suitable for expansive soil slope

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] see figure 1 with image 3 , an assembled anchor frame beam structure containing EPS elastic cushion suitable for expansive soil slopes, including reinforced concrete concave beam prefabricated units 10, the reinforced concrete concave beam prefabricated units 10 are arranged horizontally and vertically, and nodes 30 pass through The cast-in-place reinforced concrete 32 is connected with the bolt 34, and the bolt 34 passes through the bolt hole 12 provided at the connecting portion of the adjacently connected reinforced concrete concave beam prefabricated unit 10, and reserves the anchor hole 31 for installing the anchor rod to form an assembled Anchor frame beam structure.

[0033] The reinforced concrete frame beam in this embodiment is assembled by reinforced concrete concave beam prefabricated units and joints with cast-in-place concrete and bolts, which greatly reduces the difficulty of making prefabricated units, and first installs anchor rods, and then casts in-...

Embodiment 2

[0035] This embodiment is basically the same as Embodiment 1, and the special features are as follows:

[0036] see figure 1 with image 3 , the cast-in-place concrete 32 at the node 30 forms the cut-off edge 33 structure of the anchor rod, closes the exposed section of the anchor rod, closely connects the anchor rod and the frame beam structure, and assembles to form a reinforced concrete frame beam.

[0037] The joints 30 of this embodiment are connected by cast-in-place reinforced concrete 32 and bolts 34, and anchor holes 31 are reserved. After the anchor is poured and installed, an anchor cut-off edge 33 is formed by cast-in-place concrete 32 to make the anchor and the frame beam tight connection. In this embodiment, the cast-in-place method is adopted to form the anchor bolt water-cutting edge 33 structure, which enhances the waterproof measures of the anchor bolt, ensures the overall strength of the assembled anchor bolt frame beam structure, and makes the assembled a...

Embodiment 3

[0039] This embodiment is basically the same as the above-mentioned embodiment, and the special features are as follows:

[0040] see Figure 1-Figure 4 The two sides of the reinforced concrete concave beam prefabricated unit 10 are provided with EPS elastic cushion 20, and the EPS elastic cushion 20 is flush with the concave beam.

[0041] In this embodiment, the EPS cushion layer arranged on both sides of the concave beam allows certain deformation of the expansive soil slope, and offsets part of the expansion force through self-compression to reduce the expansion force on the concave beam, thus greatly saving the reinforcement cost of the concave beam.

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Abstract

The invention discloses an assembled type anchor rod frame beam structure containing an elastic cushion layer and suitable for an expansive soil slope and a construction method thereof. The construction efficiency and quality of an anchor rod frame beam are effectively improved, the material cost of the frame beam is saved, and the comprehensive supporting effect of the anchor rod frame beam structure is improved. The structure comprises a reinforced concrete concave beam prefabricating unit, EPS (polystyrene) elastic cushion layers arranged on two sides of the reinforced concrete concave beamprefabricating unit, and an anchor rod arranged at a joint of a reinforced concrete frame beam. The reinforced concrete frame beam is formed by connecting the reinforced concrete concave beam prefabricated unit, cast-in-place concrete at the joint and bolts. The EPS elastic cushion layers are arranged on two sides of the frame beam. According to the assembled type anchor rod frame beam structure,the construction efficiency and quality of slope supporting engineering are effectively improved, the material cost of the frame beam is reduced, and the supporting effect of the anchor rod frame beam structure and the economic benefit of the construction project are improved.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering slope anchoring, in particular to an assembled anchor rod frame beam structure containing EPS elastic cushions and a construction method for expansive soil slopes. Background technique [0002] The anchor frame beam slope support structure is widely used in slope reinforcement in expansive soil areas because of its good integrity, strong rigidity, and consideration of greening. The function of the frame is to restrain the slope soil and restrain the deformation of the slope soil. The role of the anchor is to embed the deep soil and fix the frame. At the same time, the vegetation root system in the frame can also reinforce the shallow soil and alleviate the impact of the dry-wet cycle of the expansive soil caused by the climate. [0003] At present, the prefabricated form of frame beams in engineering is mostly cross-shaped prefabricated beam units prefabricated together with fra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20E02D5/76
CPCE02D17/20E02D5/76E02D2300/002E02D2600/30E02D2600/20E02D2300/0017E02D2300/0029
Inventor 谢彦初孙德安汪磊徐永福
Owner SHANGHAI UNIV
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