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A reinforcement method of flexible drainage bamboo fiber rods for slumping disease in soil ruins in humid environment

A technology for wet environment and soil sites, which is applied in the field of reinforcement and treatment of slump diseases of underground soil sites, can solve the problems of slump disease strength, stiffness, aggravation, and the appearance of soil sites, and improve the undrained shear strength. , the effect of good tensile strength

Active Publication Date: 2017-02-08
FUZHOU NO 7 CONSTR ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a special reinforcement and protection method for the sliding and slumping disease of the pit wall of the underground earth site in a humid and low-lying environment, so as to solve the following problems in the technology of traditional anchorage technology for strengthening the sliding and slumping disease of the underground earth site in a humid environment: ( i) The impact of large borehole diameter on the appearance of earthen ruins; (ii) the aggravation of slump and collapse in earthen ruins due to drilling vibration; (iii) the impact of large grouting pressure on traditional grouting techniques The aggravation of slump damage and the aggravation of the damage caused by the tolerant salt generated by the grout solidification; (iv) the inconsistency of strength and stiffness between traditional anchoring technology and slump damage and irreversible reinforcement

Method used

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  • A reinforcement method of flexible drainage bamboo fiber rods for slumping disease in soil ruins in humid environment
  • A reinforcement method of flexible drainage bamboo fiber rods for slumping disease in soil ruins in humid environment
  • A reinforcement method of flexible drainage bamboo fiber rods for slumping disease in soil ruins in humid environment

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Effect test

Embodiment 1

[0032] A method for reinforcing flexible drainage bamboo fiber rods for slumping disease in underground soil ruins in humid environment, comprising the following steps:

[0033] (1) the bamboo rod material is processed into a bamboo fiber rod with a diameter of φ=6mm as the core material 1 of the flexible drainage bamboo fiber rod 5, and the length is 0.5m; and the chemical solution method is used to carry out anti-corrosion and anti-corrosion treatment;

[0034] (2) Geotextile / geotextile drainage structure layer: Bamboo fiber poles are used as the core material 1 and three layers of geotextile / geotextile are wrapped from the inside to the outside as the drainage structure layer; the three-layer civil fabric / cloth structure settings and functions are respectively: The innermost layer is a geotextile 2 with a thickness of 0.1mm, which is firmly bonded to the bamboo fiber rods with an adhesive such as epoxy resin, in order to increase the grip force of the interface; -1 ~10 -2 ...

Embodiment 2

[0037] (1) bamboo rod material is processed into the bamboo fiber rod of diameter φ=10mm as the core material 1 of flexible drainage bamboo fiber rod 5, and the length is 2.0m;

[0038] (2) Geotextile / geotextile drainage structure layer: Bamboo fiber poles are used as the core material 1 and three layers of geotextile / geotextile are wrapped from the inside to the outside as the drainage structure layer; the three-layer civil fabric / cloth structure settings and functions are respectively: The innermost layer is a geotextile 2 with a thickness of 0.5 mm, which is firmly bonded to the bamboo fiber rods with adhesives such as epoxy resin, in order to increase the grip force of the interface; -1 ~10 -2 cm / s) non-woven geotextile 3 (thickness about 2mm), the purpose is to play the role of proper drainage and decompression in the soft plastic-flow plastic relic soil, and improve the undrained shear strength of the relic soil itself; The outermost layer of geotextile is a 2.5mm thick...

Embodiment 3

[0041] (1) the bamboo rod material is processed into a bamboo fiber rod with a diameter of φ=8mm as the core material 1 of the flexible drainage bamboo fiber rod 5, with a length of 1.0m;

[0042] (4) Geotextile / geotextile drainage structure layer: Bamboo fiber poles are used as the core material 1 and three layers of geotextile / geotextile are wrapped from the inside to the outside as the drainage structure layer; the three-layer civil fabric / cloth structure settings and functions are respectively: The innermost layer is a geotextile 2 with a thickness of 0.3mm, which is firmly bonded to the bamboo fiber rods with adhesives such as epoxy resin, in order to increase the grip force of the interface; -1 ~10 -2 cm / s) non-woven geotextile 3 (thickness about 2mm), the purpose is to play the role of proper drainage and decompression in the soft plastic-flow plastic relic soil, and improve the undrained shear strength of the relic soil itself; The outermost layer of geotextile is a 1...

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Abstract

The invention discloses a method for reinforcement and protection of slump damage in soil ruins in a humid and low-lying environment. The method adopts bamboo fiber poles as the core material and geotextile as the drainage structure layer, and integrates the functions of "proper drainage-proper reinforcement" To control the landslide disease of underground soil sites. This method has no drilling and grouting process, which can avoid the disturbance of the site soil body by the drilling and grouting process and the secondary damage caused by grouting; the construction process is simple, and it can be directly pressed into the site soil by artificial static force; it will give full play to the site soil itself The combination of high strength and the tensile capacity of natural bamboo moderately improves the stability of the site soil as a whole; it can effectively solve the shortcomings of traditional anchoring technology such as large disturbance, large pollution, irreversibility, and poor suitability for deformation coordination.

Description

technical field [0001] The invention relates to a technical method for strengthening and controlling slump and collapse diseases of underground soil ruins in a humid and low-lying environment, in particular to a purely physical reversible reinforcement method for soil ruins. Background technique [0002] Due to the geological origin and special occurrence environment of the soil ruins in a humid and low-lying environment, from the perspective of environmental geology and geotechnical mechanics, the soil of the ruins has "high clay content, high moisture content, low permeability, low undrained strength, High rheology" typical soft clay characteristics. Due to the low-lying environment and the high water level at the bottom line, the soil of the ruins is mostly in a state of soft plastic or even fluid plastic. With the deepening of the excavation pit (trough) and the need for public display, the precipitation in the pit and the seasonal rise and fall of the groundwater level...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/74
CPCE02D3/00E02D3/10E02D5/74
Inventor 柴新军何春锋高金贺李爱飞陈士军鹿庆蕊吉植强李凤臣
Owner FUZHOU NO 7 CONSTR ENG
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