Repair of the Czar Shaft sinkhole
Conference
·
OSTI ID:588768
- DEI Professional Services, Phoenix, AZ (United States)
- City of Bisbee, AZ (United States)
After a Portion of the Queen Mine parking lot collapsed into a sinkhole, an engineering study was conducted to confirm that the cause of the damage was settlement into the Czar Shaft in Bisbee, Arizona. Historical records were researched to describe and locate the original shaft, and a seismic refraction survey was performed to define the foundation conditions within and around the shaft. Recommended mitigation measures were developed to repair the parking lot. Mitigation included design and construction of a flexible geosynthetic cap and telltale settlement monitoring system.
- OSTI ID:
- 588768
- Report Number(s):
- CONF-9605286--
- Country of Publication:
- United States
- Language:
- English
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