摘要
由于黑山铁路隧道中的混合岩、砂岩、砂岩夹泥岩、砾岩、砾岩夹泥岩受地质构造、高地应力和地下水的影响,岩体较破碎,局部地段岩体破碎,拱部围岩稳定性相对较差,围岩级别及支护措施调整较多。本文通过对黑山隧道工程工程地质、水文特征、地应力、岩体特征等情况的研究,分析围岩调整原因及施工措施并得出了相关的结论,为黑山隧道工程施工中遇到的主要地质问题提供了解决依据。
The migmatite, sandstone, sandstone with laminated mudstone, conglomerate and conglomerate with laminated mudstone in Heishan tunnel are affected by the geological structure, high geostress and groundwater, which leads to the relative fractured rock mass, the rock disintegration in partial sections, the relative low stability of wall rock, as well as many categories of wall rocks and adjustments of support measures. The engineering geology, hydrological characteristics, geostress and rock mass features in the construction of Heishan tunnel are studied, and the causes for the wall rock adjustment and construction are analyzed, which provides the references for the resolution of main geological problems during the construction of Heishan tunnel.
出处
《工程勘察》
2014年第8期30-34,共5页
Geotechnical Investigation & Surveying
关键词
高地应力
软岩
大变形
high geostress
soft rock
large deformation
