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首页> 外文会议>International Symposium on Geotechnical Measurements and Modelling; Sep 23-25, 2003; Karlsruhe, Germany >The geomechanical influence of insolubles in solution mining for mining layout in Alpine salt rock
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The geomechanical influence of insolubles in solution mining for mining layout in Alpine salt rock

机译：高山盐岩采矿布局中固溶过程中不溶物的地质力学影响

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摘要

For salt production brine is won by solution mining with the borehole well method. The Alpine salt rock consists of a high share of insolubles, and therefore leached caverns are filled with clay residue, as so-called Laist, a natural backfill, according to salt content. The influence of cavern-fill-pressure on the long-term behavior of the cavern system is demonstrated based on numerical calculations, whereby the creep behavior of the salt rock is described by an elasto-viscous power law and the clay residue by the modified Cam-clay model. The research method for registering relevant parameters concerning short, as well as long-term behavior and furthermore, the obtained results are presented. Additionally, it will be demonstrated that the creep behavior of a material, which can be described via the Norton power law, can additionally be obtained from the convergence rates of drifts in different depths.
机译：为了生产盐，可通过井眼法进行溶液开采获得盐水。高山盐岩由大量不溶物组成，因此浸出的洞穴中充斥着粘土残渣，根据盐分，天然回填物称为Laist。通过数值计算，证明了洞室充填压力对洞室系统长期性能的影响，其中盐岩的蠕变行为通过弹性粘弹性定律描述，而黏土残渣则通过改进的Cam进行描述。 -粘土模型。记录有关短期和长期行为的相关参数的研究方法，并介绍了获得的结果。另外，将证明可以通过诺顿幂定律描述的材料的蠕变行为可以另外从不同深度处的漂移的收敛速度获得。

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