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Updated: Jul 4, 2025

Mechanical Expansion of Steel Tubing as a Solution to Leaky Wellbores
Published on: November 20, 2014
Research and development of fully enclosed wire-shell support structure technology for deep soft rock roadway based
Weijing Yao1,2,3, Chengjun Wang4, Jianyong Pang5,6
1Base for innovative Methods Promotion Application and Demonstration of Anhui Province, Anhui University of Science and Technology, Huainan, 232001, Anhui Province, China. yaoweijing0713@163.com.
Abstract:
The TRIZ theory was used to accurately discover the problems to be solved in the design of roadway surrounding rock control technology. This paper tried to solve the complex issue of surrounding rock control in deep roadways from a new perspective. Based on the functional component analysis and causal axis analysis of the problem's primary reason, simultaneously, the surrounding rock control technology was optimized through technical contradiction analysis, physical contradiction analysis, and substance and field model analysis. As a result, a fully enclosed wire-shell support technology was proposed. Finally, taking the typical soft rock roadway engineering of Pansan Coal Mine in Huainan Mining Area, Anhui Province, China, as the engineering background, the engineering application and effect evaluation were completed. This paper provides a reference for controlling the instability of deep soft rock roadways in coal mines. A new idea of optimizing roadway support engineering based on TRIZ theory was proposed.
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