Dynamic measurements and behave laws of tunnel pressure in deep mining

Author

Miao Sheng-jun ; Li Zheng-sheng ; Ji Dong ; Li Jiang-bo

Author_Institution

Civil & Environ. Eng. Sch., Univ. of Sci. & Technol. Beijing, Beijing, China

fYear

2011

fDate

22-24 April 2011

Firstpage

250

Lastpage

253

Abstract

With the deep mining development of coal resource, many safety problems have arisen and become serious gradually, such as tunnel deformation, rock burst, and so on. Multi-source techniques and methods must be used to monitor and study the behave laws of tunnel pressure, thus safety and efficient mining can be guaranteed. It takes the working face No. VI 15-22020 and its transportation tunnel of 2nd level of a mine in Hehan province as the research subject. Borehole stress meters, multi-point extensometers, instruments of roadway convergence were used to monitor the characteristics of abutment pressure of working face, roof displacement and section deformation of surrounding rock of tunnel in the influence of deep mining. And the behave laws of tunnel pressure in deep mining of the coal mine are summarized and analyzed, which have important directive to mining design and safety.

Keywords

coal; deformation; design; mining; mining industry; rocks; safety; stress analysis; structural engineering; tunnels; Borehole stress meters; Hehan province; No. VI 15-22020; abutment pressure characteristics; coal mine; coal resource; deep mining development; deep mining influence; dynamic measurement; mining design; multi source technique; multi-point extensometers; roadway convergence instruments; rock burst; safety problem; surrounding rock deformation; transportation tunnel; tunnel deformation; tunnel pressure behave law; Coal; Convergence; Displacement measurement; Face; Monitoring; Rocks; Stress; abutment pressure; behave law; deep mining; deformation of surrounding rock; tunnel pressure;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on

Conference_Location

Lushan

Print_ISBN

978-1-4577-0289-1

Type

conf

DOI

10.1109/ICETCE.2011.5774330

Filename

5774330