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H-shaped flexible concrete ultra-thin cut-off wall and construction method thereof

An anti-seepage wall and ultra-thin technology, which is applied in artificial islands, sheet pile walls, water conservancy projects, etc., can solve the problems of wall lap joints opening and inapplicability, and achieve strong deformation resistance and fine wall materials Silky, low-cost effect

Inactive Publication Date: 2010-07-28
中基发展建设工程有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is impossible to form grooves for soft plastic and flow plastic muddy soils, so this method cannot be applied to soft plastic and flow plastic muddy soils.
Moreover, the plastic concrete anti-seepage wall prepared by the water-jet wall construction method is composed of the first groove and the second groove wall connected end-to-end. If the ground is partially displaced or deformed, it is easy to make the wall lap seam open.

Method used

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  • H-shaped flexible concrete ultra-thin cut-off wall and construction method thereof
  • H-shaped flexible concrete ultra-thin cut-off wall and construction method thereof
  • H-shaped flexible concrete ultra-thin cut-off wall and construction method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0052]An "H" type flexible concrete ultra-thin cut-off wall is made of the following raw materials in parts by weight:

[0053] Portland cement 150 parts,

[0054] 60 parts of sodium bentonite,

[0055] Limestone powder 550 parts,

[0056] 650 parts of water,

[0057] 3.5 parts of dispersant,

[0058] 3.0 parts of coupling agent;

[0059] Described dispersant is ethylene bis stearic acid amide; Described coupling agent is titanate coupling agent;

[0060] The pH of the sodium-based bentonite is 8, the colloid rate is 98.5%, the water content is 11%, and the fineness is 92% of particles passing through a 200-mesh sieve;

[0061] The limestone powder is siliceous limestone powder; the particle size distribution of the siliceous limestone powder is: the proportion of powder particles passing through a sieve with a mesh diameter of 0.09 mm is 10% to 18%, and the ratio of passing through a sieve with a mesh diameter of 0.063 mm is 20%. ~30%, the ratio of passing through a sie...

Embodiment 2

[0080] An "H" type flexible concrete ultra-thin cut-off wall of the present invention is composed of the following raw materials in parts by weight:

[0081] 170 parts of slag cement,

[0082] 80 parts of sodium bentonite,

[0083] 650 parts of limestone powder,

[0084] 750 parts of water,

[0085] 4.8 parts of dispersant,

[0086] 6.0 parts of coupling agent;

[0087] The dispersant is a hydrocarbon paraffin solid; the coupling agent is an aluminate coupling agent;

[0088] The pH of the sodium-based bentonite is 9, the colloid rate is 99%, the water content is 10%, and the fineness is 94% of particles passing through a 200-mesh sieve;

[0089] The limestone powder is siliceous limestone powder, and the particle size distribution of the limestone powder is: the proportion of powder particles passing through a sieve with a mesh diameter of 0.09 mm is 10 to 18%, and the ratio of particles passing through a sieve with a mesh diameter of 0.063 mm is 20 to 30%. %, the ratio...

Embodiment 3

[0106] An "H" type flexible concrete ultra-thin cut-off wall of the present invention is composed of the following raw materials in parts by weight:

[0107] Portland cement 160 parts,

[0108] 70 parts of sodium bentonite,

[0109] Limestone powder 600 parts,

[0110] 710 parts of water,

[0111] 3.5 parts of dispersant,

[0112] 3.2 parts of coupling agent;

[0113] Described dispersant is sodium carbonate; Described silane coupling agent is aminopolysiloxane;

[0114] The pH of the sodium-based bentonite is 9, the colloid rate is 99%, the water content is 10%, and the fineness is 96% of particles passing through a 200-mesh sieve;

[0115] The limestone powder is siliceous limestone powder, and the particle size distribution of the limestone powder is: the proportion of powder particles passing through a sieve with a mesh diameter of 0.09 mm is 10 to 18%, and the ratio of particles passing through a sieve with a mesh diameter of 0.063 mm is 20 to 30%. %, the ratio of p...

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Abstract

The invention relates to a H-shaped flexible concrete super-thin infiltration prevention wall, which is prepared by the following ingredients according to the weight: Portland cement or slag cement 150-170 weights; sodium base bentonite 60-80 weights; limestone powder 550-650 weights; water 650-750 weights; dispersant 3.5-4.8 weights; coupling agent 3.0-6.0 weights. The invention has the following beneficial effect: 1 the infiltration prevention wall is applicable for the construction in clay, silty soil, and soft plastic muddy stratum, the thickness of wall can reach 70-100cm, the compressive strength of wall can reach 0.5-1.0MPa, the infiltration coefficient of wall k is less than i X 10E-8 cm / s(i=1-10); the construction efficiency can reach 400-800 square meter per d, the material consumption is only 0.12-0.15 cubic meter per square meter; 2. the infiltration prevention wall of the invention is formed by overlapping a plurality of H-shaped walls from beginning to end, so as to realize seamless overlapping so that the infiltration prevention wall is continuous and complete and has stronger anti-deformation capability, low cost and high efficiency; the materials of wall is fine and smooth, and has strong anti-deformation capability and good infiltration prevention effect.

Description

technical field [0001] The invention relates to an anti-seepage wall and a construction method thereof, in particular to an "H" type flexible concrete ultra-thin anti-seepage wall and a construction method thereof. Background technique [0002] There are many technologies used in underground vertical anti-seepage engineering, such as traditional deep-layer mixing pile technology, high-pressure rotary grouting technology, small-diameter cast-in-place pile technology, underground diaphragm wall technology, and plastic concrete anti-seepage wall technology prepared by water-jet wall construction. Each technology has its own strengths and different scopes of application. [0003] First of all, the pile diameter and the verticality of the pile body are not easy to control in the deep mixing pile technology, and poor lap joints are prone to occur, resulting in local leakage; the high-pressure rotary grouting technology is affected by the change of stratum lithology, it is difficul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04E02D29/02E02D5/18C04B14/10C04B14/28
CPCC04B2201/52C04B28/04C04B2111/50C04B28/08
Inventor 王秀丽陈志辉孙仲启刘勇郑中诚
Owner 中基发展建设工程有限责任公司