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Subsidence Over AML and Its Causes?A Case Study

by S. S. Peng, West Virginia Univ, Morgantown, WV, USA,
P. M. Lin, West Virginia Univ, Morgantown, WV, USA,
S. M. Hsiung, West Virginia Univ, Morgantown, WV, USA,



Document Type: Proceeding Paper

Abstract:

Subsidence over abandoned mined lands can be attributed to several causes. For purposes of compensation and liability and developing remedial measures, it is essential to identify the real causes. The detailed procedures for a subsidence investigation and the keys to identify and determine the causes and severity of the damages are illustrated and discussed through a case study in this paper. A subsidence check list has been developed for investigation purposes. The case discussed in this paper is a mining-related subsidence. The associated subsidence index was 60%. The damage to the dwelling was due to tension. The major damage was developed within two days. A crackmeter was installed on the exterior wall to monitor the house movement. An inclinometer casing and a Sondex casing were installed in a borehole to monitor the ground movement. The results of the geotechnical instrumentation are presented to illustrate the procedures developed for investigating the subsidence cases over the abandoned mine lands.

Subject Headings: Land subsidence | Case studies | Residential buildings | Data analysis | Land use | Instrumentation | Geotechnical investigation

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