然而，有关黄土暗穴研究甚少，从公路工程角度，对其进行研究几乎空白。
However, the research of loess hidden cavity is almost zero from highway engineering.
黄土暗穴的稳定性不仅与黄土自身的工程地质特性有关，而且还与各种自然条件及人为因素有关。
The stability of loess hidden holes not only relates to the engineering geology characteristics, but to all kinds of natural conditions and human factors.
针对车辆动荷载作用下黄土暗穴对路基稳定性的影响，运用有限元方法对其进行了动力响应分析。
Aiming at the subgrade stability problem influenced by hidden holes in loess under dynamic load of vehicles, dynamic response analysis was performed by finite element method.
其次，晋西黄土中存在着大量节理裂隙，是黄土暗穴形成的优势面，为地下水的运移和储存提供了场所；
Secondly, numerous loess joint fractures are preferred plane of loess hidden holes and provide place for the transport and the storage of the groundwater.
黄土潜蚀是黄土地区水土流失的重要原因，同时潜蚀作用形成的黄土暗穴是黄土地区主要工程地质问题之一。
The subsurface erosion of loess is a critical problem that causes the loss of water and soil in loess area.
本论文以大量的野外调研为基础，结合现场试验和室内试验数据，对黄土暗穴的特征、成因机制、分布规律进行了较深入地研究。
Based on the field investigation and test data, this thesis studies profoundly on the characteristic, the origin mechanism and the characteristic of distribution of loess hidden cavity.
本论文以大量的野外调研为基础，结合现场试验和室内试验数据，对黄土暗穴的特征、成因机制、分布规律进行了较深入地研究。
Based on the field investigation and test data, this thesis studies profoundly on the characteristic, the origin mechanism and the characteristic of distribution of loess hidden cavity.
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