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Constructing technology for layered soft foundation treatment

A technology for soft foundation treatment and construction technology, applied in infrastructure engineering, fertilization equipment, soil protection, etc., can solve the problems of poor uniformity and low strength, and achieve the effects of short construction period, low cost and simple construction process

Active Publication Date: 2013-10-16
杭州佳熠环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has poor uniformity, low strength, and complex machinery

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: a kind of sludge curing agent is made up of powder and liquid, wherein the composition and proportioning of powder and liquid are as follows:

[0012] The powder includes the following components by weight ratio: 30kg of cement clinker, 30kg of slag or slag, 3kg of lime, 1kg of gypsum, and 1kg of sulfate; the liquid agent includes the following components by weight ratio: polyacrylamide 5kg, lignosulfonate 20kg, alkylphenol polyoxyethylene ether 0.2kg, α-olefin sulfonate 0.2kg.

[0013] The powder contains 0.2 kg of sodium polymethylene naphthalene sulfonate naphthalene-based high-efficiency water reducer.

Embodiment 2

[0014] Embodiment 2: a kind of sludge curing agent is made up of powder and liquid, wherein the composition and proportioning of powder and liquid are as follows:

[0015] 60kg of cement clinker, 60kg of slag or slag, 8kg of lime, 7kg of gypsum, and 7kg of sulfate; Sulfonate 80kg, lignosulfonate complex with iron and chromium ions 30kg, alkylphenol polyoxyethylene ether 2kg, tannin 10kg, humate 10kg, α-olefin sulfonate 2.5kg.

[0016] The powder contains 2.0 kg of sodium polymethylene naphthalene sulfonate naphthalene-based high-efficiency water reducer.

Embodiment 3

[0017] Embodiment 3: a kind of sludge curing agent is made up of powder and liquid, and wherein the composition and proportioning of powder and liquid are as follows:

[0018] 45kg of cement clinker, 45kg of slag or slag, 5kg of lime, 4kg of gypsum, and 4kg of sulfate; the liquid preparation includes the following components by weight: 5kg of polyacrylamide, 5kg of polyaluminum chloride, 5kg of mannitol, wood Sulfonate 50kg, lignosulfonate complex with iron and chromium ions 5kg, alkylphenol polyoxyethylene ether 1.1kg, tannin 1kg, humate 2kg, α-olefin sulfonate 1.3kg .

[0019] The powder contains 1.1 kg of sodium polymethylene naphthalene sulfonate naphthalene-based high-efficiency water reducer.

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Abstract

The invention provides a constructing technology for layered soft foundation treatment. According to the technology, firstly, in the ground segment needing to be treated, space needed for engineering is dug with a manual or mechanical method, dug home-position soft soil and sludge curing agent are stirred and mixed to be even, and the water-seepage-proof and water-stopping function of the soil body is enhanced. The layering constructing process includes the steps that firstly, a layer of curing agent is paved at the bottom of the dug space, then the stirred soil body is paved on the curing agent layer in a layering mode, a flattening device is used to flatten the layer of the paved stirred soil body after one layer of the stirred soil body is paved, then another layer of the stirred soil body is paved, two to five layers of the stirred soil body is paved, and the thickness of the paved stirred soil body is 30cm; the sludge curing agent includes powder agent and liquor raw material, the powder agent comprises cement clinker, cinder or slag, lime, gypsum and sulfate; the liquor includes polyacrylamide, polyaluminium chloride, mannitol, lignin sulfonates, alkyl phenol polyoxyethylene ether, tannic acid, humic acid salt, alpha-olefin sulfonate and the like.

Description

technical field [0001] The invention relates to a foundation treatment construction technique suitable for uneven ground and soft soil layers, and specifically refers to a layered soft foundation treatment construction technique. Background technique [0002] At present, the similar foundation soil reinforcement technologies used in China mainly include the following types: 1) Gravel pile method: use vibration or impact to form holes in weak foundations, and then fill them with materials such as sand, gravel, pebbles, and crushed stones. A foundation treatment method for forming dense sand and gravel piles after extrusion. This method is not suitable for weak cohesive soil foundations. 2) High-pressure jet grouting method: The injection agent is formed into a high-pressure jet stream, and the hardener and the soil are mixed with the help of cutting and mixing of the high-pressure jet stream to reinforce the soil. This method has a long construction period and high cost. 3...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/12C09K17/40C09K103/00
Inventor 杨靖忠
Owner 杭州佳熠环保科技有限公司
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