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Characterization of subsidence over multiple lift longwall panels.

Gentry-DW; Stewart-CL

Washington, DC: U.S. Department of Energy, Contract AC22-80PC30118, 1982 Sep; :1-135

10000362

This report presents the methodology and procedures utilized in installing and removing a surface subsidence monitoring net in remote, rugged, alpine terrain. Work on this project was performed by Mine Subsidence Engineering Company (MSE) and funded by the Department of Energy (DOE). The original contract (73-month duration) called for the installation and monitoring of a surface subsidence net suitable for the characterization of subsidence over multiple lift longwall panels. However, because of DOE contract modifications, actual project work involved only the installation, baseline surveys, and subsequent removal of the subsidence monitoring net during the 24-month contract period. These activities are described herein, as well as the required permitting process. This report describes a successful methodology for permitting, installing and removing a surface subsidence monitoring net under conditions typical of those faced by many operators in the western US. This work was performed above Mid-Continent Resources' L.S. Wood No. 3 Mine, in Coal Basin, Pitkin and Gunnison Counties, Colorado, approximately five miles west of the town of Redstone.

Longwall-mining; Ground-subsidence; Coal-mining; Underground-mining; Monitors; Mining-industry; Monitoring-systems

19820901

CP; Final Contract Report

1982

DE83-001856

A07

Contract-AC22-80PC30118; DOE/PC/30118-T4

PRC

Washington, DC: U.S. Department of Energy, Contract AC22-80PC30118

PA; CO

Mine Subsidence Engineering Co., Morrison, CO