渝怀线地质灾害发育特征及处理原则

重点介绍渝怀铁路线地质灾害发育分布特征 ,主要灾害类型包括滑坡、崩坡积层、危岩落石、顺层及软质岩高边坡、岩溶突水、地表水漏失、水库坍岸、软土、膨胀土和煤层瓦斯等 ,在总结铁路行业对整治地质灾害的经验教训基础上 ,针对渝怀线的地质灾害提出相应的处理原则 ,即针对大型地质灾害和地质灾害集中发育地段 ,采取绕避的方法 ;无法绕避地段 ,则采用相应的工程措施。

DISTRIBUTING CHARACTER AND DISPOSING PRINCIPLE OF GEOLOGIC HAZARDS ALONG CHONGQING-HUAIHUA RAILROAD

The Chongqing Huaihua railway is one of the main railroads of road network in the plan of western exploitation being put in force. The whole road, 624.523 km, goes through all layers from Proterozoic Group to Quaternary (except Carboniferous layer), which are mainly made up of classic rocks, soluble rocks, epimetamorphic rocks and loose sediments. The main geologic structure through which the railway goes is a fold belt being made up of a set of north north east bundle of fold. The geologic hazards in the Chongqing Huaihua railway are characterized by section developing. They include slides, collapse sloping deposits, bedding and flexible rock slopes, inburst of karst water, leakage of surface water, collapsing of reservoir bank, soft soil, expanding soil, gas from coal seams. Based on the experience and lesson of treating with geologic hazards in railroad industry, the authors put forward the principle that different disposing measures are taken according to different geologic hazards in the Chongqing Huaihua railroad. For example, the authors try their best to avoid sections which develop lots of big geologic hazards. If the road must go through these sections, the related engineering measures ought to be taken.