【作者】 沈军辉； 姚强； 沈中超； 崔杰； 刘维国； 朱容辰；

【Author】 SHEN Junhui YAO Qiang SHEN Zhongchao CUI Jie LIU Weiguo ZHU Rongchen (National Laboratory of Geological Hazard Prevention and Geological Environment Protection,Chengdu University of Technology,Chengdu 610059)

【机构】 成都理工大学地质灾害防治与地质环境保护国家重点实验室；

【摘要】 在裂缝发育分布及破裂特征调查基础上,总结了雅江县城区裂缝的发育规律,结合城区斜坡地质结构及地下水等环境地质条件,分析了城区地面及建筑物开裂的原因。分析表明,裂缝的形成是城区前、后缘斜坡地带结构复杂的松散土体,在地下水作用下,发生蠕变、蠕滑引起土体不均匀沉降所致,地震对其形成和扩展起了促进作用。研究成果对评价城区斜坡整体稳定性及对城区建设规划和下游雅砻江牙根水电站正常蓄水位的选定等具有重要意义,对山区城市建筑物开裂原因的认识具有一定的意义。更多还原

【Abstract】 Based on investigation of the distributing and distortion break characters of ground and building fissures at the city zone of Yajiang county,its growth rule was summarized,and its forming mechanism was analysed combining geological conditions such as slope geological structure and groundwater.Its forming mechanism is that the relax soil lies on the front and back zone of slope which structure is complex creeps and glides bringing on asymmetry subsiding.Besides,earthquake accelerates its form and expanding.The research production is important signification for integer stability appraisement of the city zone slope,the town planning constructing and making choice of normal sluice place Yagen hydroelectric station downstream of Yalong river.Furthermore,it is certain meaning for cognition to the causation of building crack at the county in a mountainous area.更多还原