Estimation of bearing capacity of supporting pillars during in-situ leaching of thick salt deposits (in conditions of Yar-Bishkadak brine field).
Abstract
The Yar-Bishkadak field, which supplies brine to a number of chemical enterprises in Bashkiria, develops a section of salt deposit with a thickness of 200-700 m, with the thickness of overlying rocks being 400-500 meters. Development is carried out by isolated chambers, which are created by salt leaching through wells drilled from the surface. The adopted technology - step leaching - provides creation of chambers of approximately cylindrical shape with a diameter of 80-100 m and height by the end of mining equal to the thickness of the salt deposit (the height of individual chambers currently reaches 100-150 m) ....
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(Archived) Without section
References
- Levina C. O., Mikhlin S. G. To the question about calculation of stresses in inter-chamber pillars. Proc. of the Seismological Institute of the AS USSR, No. 94, 1940.
- Levina C. O. Additional studies of stresses in inter-chamber pillars. Proc. Seismologic Institute of the AS USSR, No. 108, 1941.
- Frocht M. Photoelasticity. V. 1. OGIZ, 1948.
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