西安云轨地裂缝专项勘察及影响范围分析

地裂缝作为一种不良地质作用影响着工程建设。采用资料收集、地面调查、物探(高密度电法、地微动探测)、工程地质钻探等综合勘察手段,对西安高新区云轨工程拟建线路沿线的地裂缝进行专项勘察,查明了拟建线路场地内与线路相交的地裂缝的具体位置、产状、活动性;通过规范法及数值模拟法对地裂缝活动影响范围进行分析,并提出地裂缝防治措施建议,为云轨桥梁通过地裂缝的结构设计以及施工提供依据。

Special Investigation and Influence Range of the GroundFissure in Xi an Skyrail

As an adverse geological effect,ground fissures affect the project construction.Comprehensive investigation methods have been applied in the Skyrail of Xi’an High-tech Zone,such as data collection and ground investigation,geophysical exploration(high-density electrical method,microtremor survey method),engineering geological drilling.Special investigation is carried out on the ground fissures along the proposed line of the Skyrail,and the specific location,occurrence and activity of the ground fissures intersecting the line are investigated.Through the standard method and numerical simulation method,the influence range of the ground fissure activity is analyzed,and the prevention and control measures of the ground fissure are provided,which provide the basis for the structural design and construction of the Skyrail bridge passing through the ground fissures.