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Title:
SMART GROUTING SYSTEM AND GROUTING METHOD FOR GEOLOGICALLY COMPLEX REGIONS
Document Type and Number:
WIPO Patent Application WO/2019/085424
Kind Code:
A1
Abstract:
A smart grouting method for geologically complex regions, in which the coefficient of permeability of grouting holes in a region is obtained from water permeability tests, an optimal grout concentration for each grouting hole is determined, and sensors (8, 9, 11, 12) and control valves (C, D, E) are installed on every pipeline for real-time control in order to achieve a smart grouting effect. Concentrated grout and dilute grout are mixed at different flow rates to formulate the optimum grout concentration for each grouting hole. A corresponding final grouting pressure is proposed such that when the grouting pressure of a particular grouting hole in the middle of the region suddenly rises, the area designed for that grouting hole is deemed to be full of grout, and grouting of this hole is ended. Grouting of the region is complete when all grouting roles in a target region reach this final grouting pressure. The method enables smart grouting under complex geological conditions and features a high level of automation. It is possible to speed up grouting in workings without compromising work efficiency and quality. Further provided is a smart grouting system for geologically complex regions.

Inventors:
LU, Yinlong (No. 1, Daxue Road Tongsha, Xuzhou Jiangsu 6, 221116, CN)
WANG, Kai (No. 1, Daxue Road Tongsha, Xuzhou Jiangsu 6, 221116, CN)
WANG, Lianguo (No. 1, Daxue Road Tongsha, Xuzhou Jiangsu 6, 221116, CN)
MENG, Xingyu (No. 1, Daxue Road Tongsha, Xuzhou Jiangsu 6, 221116, CN)
Application Number:
CN2018/085303
Publication Date:
May 09, 2019
Filing Date:
May 02, 2018
Export Citation:
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Assignee:
CHINA UNIVERSITY OF MINING AND TECHNOLOGY (No. 1, Daxue Road Tongsha, Xuzhou Jiangsu 6, 221116, CN)
International Classes:
E21D11/10
Foreign References:
CN106321117A2017-01-11
CN107956483A2018-04-24
CN205558931U2016-09-07
CN104632252A2015-05-20
DE10310599A12004-09-23
KR20160096753A2016-08-17
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (12th FL.-B, No. 179 Zhongshan Road Gulo, Nanjing Jiangsu 5, 210005, CN)
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