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Loess cave dwelling aseismatic strengthening method based on water glass injection

A water glass and water injection technology, applied in building maintenance, building types, buildings, etc., can solve problems such as hidden dangers of loess cave dwellings, instability and loss of stability of loess cave dwellings, and achieve high construction efficiency, low investment in construction costs, Achieving convenient effects

Active Publication Date: 2020-01-14
SHAANXI ACAD OF ARCHITECTONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the "X"-shaped shear failure occurs on the arch ring vault, the loess cave dwelling will have great potential safety hazards, and even lose stability and collapse. Instability and collapse of loess cave dwellings caused by X”-shaped shear failure

Method used

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  • Loess cave dwelling aseismatic strengthening method based on water glass injection
  • Loess cave dwelling aseismatic strengthening method based on water glass injection
  • Loess cave dwelling aseismatic strengthening method based on water glass injection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Such as figure 2 Shown is a loess cave dwelling anti-seismic reinforcement method based on water glass injection, using a water glass injection reinforcement device to reinforce the loess cave dwelling 1 to be reinforced;

[0057] combine image 3 with Figure 4 , there are two cracks 2 in the overlying soil layer above the arch ring of the loess cave dwelling 1, the two cracks 2 are laid out in a cross shape and the two are laid out in an X shape, and the overlapping gap between the two cracks 2 is a cross Seam 13, the upper area of ​​the intersection seam 13 is the cavity 3, and the lower area of ​​the intersection seam 13 is the roof fall area 4;

[0058] The water glass injection strengthening device comprises two rows of water glass injection pipes 5, the two cracks 2 are located between the two rows of water glass injection pipes 5, and the two rows of water glass injection pipes 5 are inserted from outside to inside Packed into the covering soil layer;

[00...

Embodiment 2

[0103] Such as Image 6 with Figure 7 As shown, in this embodiment, the difference from Embodiment 1 is that the water glass injection reinforcement device also includes a layer of tie netting 7 fixed on the top of the roof fall area 4;

[0104] In step 1, before drilling and installing the water glass injection strengthening device, the tie netting 7 is laid on the upper part of the roof fall area 4; in step 3, after the water glass injected in step 2 is solidified, the tie net 7 is fastened and fixed In the soil body above the arch circle of the loess cave dwelling 1.

[0105] In actual use, the knotted net 7 is a reinforced mesh or a braided net, the braided net is a strap braided net or a rope braided net, and the strap braided net is a mesh formed by weaving a plurality of straps. The rope weaving net is a mesh formed by weaving a plurality of ropes. Wherein, the rope is a nylon rope or the like.

[0106] In this embodiment, the tie net 7 is the woven net of the pack...

Embodiment 3

[0120] Such as Figure 8 As shown, in the present embodiment, the difference from Embodiment 1 is: before carrying out drilling and water glass injection reinforcement device installation in the step 1, the reinforcement formwork 11 is supported in the loess cave dwelling 1 earlier, and the transverse direction of the reinforcement formwork 11 is The section is arched, and the cross-sectional shape and size of the reinforcing formwork 11 are the same as the cross-sectional shape and size of the arch ring of the loess cave 1 .

[0121] When injecting water glass in step 2, the solid supporting force is provided by the reinforcement template 11, which can effectively ensure the water glass injection effect, increase the compactness of the reinforced soil, improve the reinforcement effect, and effectively avoid water glass injection before and after water glass injection. During the water glass injection process, the upper part of the arch ring of the loess cave dwelling 1 collap...

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Abstract

The invention discloses a loess cave dwelling aseismatic strengthening method based on water glass injection. A water glass injection strengthening device is adopted for strengthening a loess cave dwelling to be strengthened; two X-shaped arranged cracks exist above an arch ring of the loess cave dwelling to be strengthened; the water glass injection strengthening device comprises two columns of water glass injection pipelines; and when strengthening the loess cave dwelling to be strengthened, the method comprises the steps of (1) drilling, and installing the water glass injection strengthening device; (2) injecting water glass; and (3) completing strengthening. The loess cave dwelling aseismatic strengthening method based on water glass injection provided by the invention is reasonable indesign, convenient to construct and good in use effect; the water glass is synchronously injected into the two columns of water glass injection pipelines arranged above the arch ring of the loess cave dwelling so as to be used for strengthening, the two columns of water glass injection pipelines are arranged along contour lines of the two cracks in an X-shaped shear damage area so as to effectively strengthen the X-shaped shear fracture area of the arch ring of the loess cave dwelling, and the damage area is transferred to a non-key part, so that an aseismatic effect of the loess cave dwelling is improved, and the seismic hazard loss is greatly reduced.

Description

technical field [0001] The invention relates to a method for reinforcing cave dwellings, in particular to an anti-seismic reinforcing method for loess cave dwellings based on injection of water glass. Background technique [0002] Cave dwellings are an ancient living form of residents on the Loess Plateau in Northwest China. The history of this "cave-dwelling" dwelling can be traced back to more than 4,000 years ago. Cave dwellings generally have cliff-like cave dwellings, sunken cave dwellings, and free-standing cave dwellings. Among them, mountain kilns are more widely used, and mountain kilns refer to loess cave dwellings dug against mountains. At present, most of the cave dwellings used are arched cave dwellings, and the arched cave dwellings include an arch ring and two left and right side walls respectively supported under the two arch feet of the arch ring. In the actual use process, the arch ring of the loess cave dwelling is prone to roof collapse. The roof collaps...

Claims

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Application Information

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IPC IPC(8): E04G23/02E04H9/02
CPCE04G23/02E04G23/0233E04H9/027
Inventor 张风亮朱武卫田鹏刚边兆伟员作义史继创毛冬旭刘岁强成浩陈力莹孟南希杨颖李妍王昕岚
Owner SHAANXI ACAD OF ARCHITECTONICS
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