Humid environment earthen site slump damage flexible drainage bamboo fiber rod reinforcement method

A wet environment and soil ruins technology, which is applied in the field of reinforcement and management of slump damage in underground soil ruins, can solve the problems of aggravation, slump damage intensity, stiffness inconsistency, shrinkage and hole collapse, etc., achieve good tensile strength, improve Effect of Drained Shear Strength

Active Publication Date: 2015-08-26
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 (iv) traditional anchoring technology and slump damage, incompatibility of strength, stiffness and irreversible reinforcement

Method used

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  • Humid environment earthen site slump damage flexible drainage bamboo fiber rod reinforcement method
  • Humid environment earthen site slump damage flexible drainage bamboo fiber rod reinforcement method
  • Humid environment earthen site slump damage flexible drainage bamboo fiber rod reinforcement method

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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 under humid environment, comprising the following steps:

[0033] (1) Process the bamboo pole material into a diameter The bamboo fiber rod is used 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 / cloth drainage structure layer: take bamboo fiber pole as the core material 1 and wrap three layers of geotextile / cloth from the inside to the outside as the drainage structure layer; the structure settings and functions of the three layers of civil fabric / cloth are: the innermost The layer is a geotextile 2 with a thickness of 0.1mm, 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 geotextil...

Embodiment 2

[0037] (1) Process the bamboo pole material into a diameter The bamboo fiber rod is used as the core material 1 of the flexible drainage bamboo fiber rod 5, and the length is 2.0m; and use asphalt to boil for a period of time to carry out anti-corrosion treatment;

[0038] (2) Geotextile / cloth drainage structure layer: take bamboo fiber pole as the core material 1 and wrap three layers of geotextile / cloth from the inside to the outside as the drainage structure layer; the structure settings and functions of the three layers of civil fabric / cloth are: the innermost The layer is a geotextile 2 with a thickness of 0.5mm, 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 a role in proper drainage and decompression in the soft plastic-flow plastic site soil, and improve the undrained shear strength of the site...

Embodiment 3

[0041] (1) Process the bamboo pole material into a diameter The bamboo fiber rod is used as the core material 1 of the flexible drainage bamboo fiber rod 5, and the length is 1.0m; and use asphalt to boil for a period of time to carry out anti-corrosion treatment;

[0042] (2) Geotextile / cloth drainage structure layer: Bamboo fiber poles are used as the core material 1 and three layers of geotextile / cloth are wrapped from the inside to the outside as the drainage structure layer; the structure settings and functions of the three layers of civil fabric / cloth are: the innermost The layer is a geotextile 2 with a thickness of 0.3 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 a role in proper drainage and decompression in the soft plastic-flow plastic site soil, and improve the undrained shear strengt...

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Abstract

The invention discloses a humid environment earthen site slump damage reinforcement and protection method. According to the method, bamboo fiber rods are adopted as core materials, geotextile serves as a drainage structural layer, and the appropriate draining function and the appropriate reinforcement function are integrated to control underground earthen site slump damage. By means of the method, the well cementing process is omitted, and disturbance of the well cementing process on earthen site soil mass and secondary damage caused by grouting can be avoided; the construction process is simple, flexible drainage bamboo fiber rods can be directly pressed into the earthen site soil mass through artificial static force, the strength of the earthen site soil mass and the tension resistance of natural bamboo wood are combined, and the stability of the earthen site soil mass is integrally and moderately improved; the defects of large disturbance, serious pollution, irreversibility, poor deformation compatibility suitability through a traditional anchoring technology can be effectively overcome.

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 Applications(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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