Method for Shield Tunneling Construction of Shield Tunneling Slag Purification, Recovery and Reuse System

A technology for shield and sludge, which is applied in the field of shield sludge purification and recycling system, can solve the problems of high construction cost and difficult processing, and achieve the effect of saving processing cost, consumption and workload.

Active Publication Date: 2016-02-10
CHINA CONSTR COMM ENG GRP UNITED
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Problems solved by technology

[0006] In order to solve the problem that a large amount of sludge is produced in shield tunneling construction, which is difficult to deal with, and a large amount of bentonite mud is used, which leads to high construction costs, the present invention proposes a shield tunneling sludge purification, recovery and reuse system for shield tunneling construction method

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  • Method for Shield Tunneling Construction of Shield Tunneling Slag Purification, Recovery and Reuse System

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Embodiment 1

[0033] See attached figure 1 , the shield mud slag is purified and reused in the synchronous grouting construction system, including the mud mixing tank 1 installed near the muck bin on the shield ground, the mixer 2 installed in the mud mixing tank; the mud pump installed near the slurry mixing tank 14. The cyclone desander installed near the mud pump 3. The slurry storage tank installed in the shield synchronous grouting mortar mixing station 4. The synchronous grouting mortar mixing station 5. The slurry pipelines connected to various places and installed in each at the valve.

[0034] The implementation steps are as follows:

[0035] Step 1: Excavate a foundation pit with a length × width not less than 10 × 5m and a depth not less than 2m near the shield slag bin as the mud mixing tank 1;

[0036] Step 2: The gantry crane lifts the shield mud from the tunnel trolley and pours it into the mud mixing tank 1;

[0037] Step 3: Inject water into the mud pool, and start the m...

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Abstract

The invention discloses a shield sludge cleansing / recycling / reusing system and method. The system comprises a slurry mixing pool (1), a mixer (2), a cyclone desander (3), a slurry storage tank (4), a mortar mixing station (5), a waste dump (6) and a pipeline. The shield sludge cleansing / recycling / reusing system and method have the advantages that the sludge generated in shield construction is cleansed and recycled so as to be reused as the raw material of shield synchronous grouting, so that the problems of large sludge waste amount and pollution on environment in the shield construction in the past and the problem of large consumption amount of raw materials such as shield synchronous grouting bentonite are solved, and therefore, the utilization amount of the bentonite is saved, the pollution on the environment caused by the waste sludge is reduced and the shield construction cost is also decreased. The system and the method provided by the invention further are characterized in that slurry prepared according to the slurry preparation ratio according to the invention is used for synchronous grouting in the mortar mixing station, the performance and the quality of grouting are the same with the performance and the quality of grouting by using the bentonite slurry, and the requirements of the shield construction can be met.

Description

technical field [0001] The invention relates to the technical field of shield tunneling, in particular to a system and method for purifying, recycling and reusing shield tunnel sludge. Background technique [0002] As the most advanced super-large special equipment for tunneling today, the shield machine is a high-tech construction equipment that realizes excavation, excavation, support, etc., and is widely used in urban rail transit, railways, highways, municipal administration, hydropower, etc. tunnel Engineering. [0003] During the tunnel shield excavation construction, the shield machine cuts the stratum soil and produces a large amount of sludge. At present, this kind of sludge treatment is mainly transported to the designated spoil site, the transportation volume is large, the site is large, and it is easy to cause environmental pollution. It is difficult to find a suitable spoil site, and the processing cost accounts for 10% of the cost of the shield tunnel. about....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10E21D9/06
Inventor 邓美龙郭宏智郝本峰朱军军石小军邓少闻王利宁王翠莲吕波
Owner CHINA CONSTR COMM ENG GRP UNITED
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