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Shield synchronous grouting slurry prepared by using shield waste mud and its construction method

A waste mud and synchronous grouting technology, applied in the direction of solid waste management, sustainable waste treatment, climate sustainability, etc., can solve the problems of waste mud pollution, environmental pollution, non-environmental protection, etc., to achieve good fluidity and reduce environmental pollution Pollution problems and low project cost

Active Publication Date: 2019-08-06
CCCC SECOND HARBOR ENG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of waste mud is unavoidably produced during shield tunneling. The pollution of waste mud has become one of the main problems faced by the engineering community. It is not economical and not environmentally friendly. Under the circumstances that the requirements for environmental protection are getting higher and higher at home and abroad, it is urgent to find an economical and environmentally friendly process for recycling and reusing waste slag and pulp.

Method used

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  • Shield synchronous grouting slurry prepared by using shield waste mud and its construction method
  • Shield synchronous grouting slurry prepared by using shield waste mud and its construction method
  • Shield synchronous grouting slurry prepared by using shield waste mud and its construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A shield synchronous grouting slurry prepared by using shield waste slurry, the slurry includes the following components per cubic meter: 150kg of cement, 440kg of fly ash, 300kg of waste slurry, 320kg of water and 800kg of sand.

[0036] In the shield synchronous grouting slurry prepared by using shield waste mud, the cement is P.O 42.5 grade ordinary / rapid-hardening Portland cement, and the fly ash is grade I and grade II fly ash. The sand is standard sand, and the waste mud is waste mud produced by shield tunneling.

[0037] A construction method for shield synchronous grouting grout prepared by shield waste mud, comprising the following steps:

[0038] 1) According to the performance requirements of shield synchronous grouting grout on the construction site and the parameters of waste mud, determine the grout ratio scheme, that is, the grout per cubic meter includes: 150kg of cement, 440kg of fly ash, 300kg of waste mud, water 320kg and sand 800kg;

[0039] 2) Acc...

Embodiment 2

[0053] A shield synchronous grouting slurry prepared by using shield waste slurry, the slurry includes the following components per cubic meter: 150kg of cement, 440kg of fly ash, 400kg of waste slurry, 250kg of water and 800kg of sand.

[0054] In the shield synchronous grouting slurry prepared by using shield waste mud, the cement is P.O 42.5 grade ordinary / rapid-hardening Portland cement, and the fly ash is grade I and grade II fly ash. The sand is standard sand, and the waste mud is waste mud produced by shield tunneling.

Embodiment 3

[0056] A shield synchronous grouting slurry prepared by using shield waste slurry, the slurry includes the following components per cubic meter: 150kg of cement, 440kg of fly ash, 650kg of waste slurry and 800kg of sand.

[0057] In the shield synchronous grouting slurry prepared by using shield waste mud, the cement is P.O 42.5 grade ordinary / rapid-hardening Portland cement, and the fly ash is grade I and grade II fly ash. The sand is standard sand, and the waste mud is waste mud produced by shield tunneling.

[0058] A construction method for shield synchronous grouting grout prepared by shield waste mud, comprising the following steps:

[0059] 1) According to the performance requirements of shield synchronous grouting grout on the construction site and the parameters of waste mud, determine the grout ratio scheme, that is, the grout per cubic meter includes: 150kg of cement, 440kg of fly ash, 650kg of waste mud and sand 800kg;

[0060] 2) According to the addition amount...

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Abstract

The invention discloses shield synchronous grouting slurry prepared from shield waste slurry and a construction method thereof, each cubic meter of the shield synchronous grouting slurry comprises the following components: 100-200kg of cement or 40-100kg of lime, 300-450kg of fly ash, 200-750kg of the waste slurry, 600-1300kg of sand, 0-450kg of water and 0-12kg of a water reducer. The waste slurry pollution problems can be alleviated, the amount of raw materials of mortar can be reduced, the shield waste slurry is mainly used in backwall grouting material for replacement of bentonite and arts of water in backwall grouting mortar, and the environmental pollution problems caused by the waste slurry can be reduced.

Description

technical field [0001] The invention relates to the field of inorganic non-metal building materials. More specifically, the present invention relates to a shield synchronous grouting slurry prepared by using shield waste mud and a construction method thereof. Background technique [0002] With the continuous development of my country's urban rail transit, subway construction has entered a peak period, and the shield tunneling method is the most widely used construction method in subway construction. A large amount of waste mud is unavoidably produced during shield tunneling. The pollution of waste mud has become one of the main problems faced by the engineering community. It is not economical and not environmentally friendly. Under the circumstances that the requirements for environmental protection are getting higher and higher at home and abroad, it is urgent to find an economical and environmentally friendly process for recycling and reusing waste slag and pulp. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B28/10C04B18/04C04B111/70
CPCY02W30/91
Inventor 杨钊屠柳青翟世鸿李顺凯唐衡陈培帅贺祖浩吴克雄蒋道东李德杰冯德定
Owner CCCC SECOND HARBOR ENG
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