求翻译：通过研究雷家冲水库坝区区域地质条件和主要工程地质问题，并分析岩石物理力学性质，评价坝体抗滑稳定性、坝体填筑土质量、坝体渗透变形。对大坝结构、渗流、抗震进行安全评价，发现坝体抗滑稳定性不满足规范要求，反滤坝丧失反虑作用，大坝坝体发生流土现象。是什么意思？

By studying Lei Chong Reservoir Dam Area Regional geological conditions and the main engineering geological problems, and analyze the physical and mechanical properties of rocks, and evaluation of dam stability against sliding of the dam embankment soil quality, dam seepage deformation. The dam stru

Mine is a punch through the study area as well as reservoir and the main Engineering geological conditions, and analysis of geologic rock physical dynamics, nature and the anti-skid stability, and reclaimed land quality, as well as infiltrated body deformation. The dam seepage, earthquake-resistant

By studying Lei Jia regional geological conditions of reservoir dam and the main engineering geological problems and analysis of physical and mechanical properties of rocks, evaluation of stability against sliding of dam, the dam embankment dam seepage deformation of soil quality,. On seismic safety

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