鲁南某高速铁路岩溶塌陷风险评估及防治对策

Risk Assessment and Countermeasures for Karst Collapse of a High-speed Railway in Southern Shandong

本文以鲁南某高速铁路某段线路岩溶塌陷为研究对象,通过收集区域地质资料、现场水文地质调查和理论分析计算等方法相结合,研究分析岩溶的发育形态和发育规律,从岩溶发育程度、覆盖层特征、地下水动力条件及历史条件4个方面,对铁路沿线两侧威胁较大的潜在岩溶塌陷区进行风险评估,并提出相应的工程防治对策。本文研究成果对鲁南岩溶地区铁路勘察设计和施工具有重要参考价值。

In this paper,the karst collapse of a section of a high-speed railway in southern Shandong is researched,and the development form and development law of karst are studied and analyzed from four aspects: karst development degree,overburden characteristics,groundwater dynamic conditions,and historical conditions by combining regional geological data collection,onsite hydrogeological investigation,and theoretical analysis and calculation. The potential karst subsidence areas on both sides of the railway are risk-assessed and the corresponding engineering prevention and control countermeasures are put forward. The research results of this paper have significant reference value for railway survey,design,and construction in karst areas of southern Shandong.