京沈客运高铁专线北京段地面沉降灾害危险性评估

Evaluation of land subsidence risk for the Beijing section of the Beijing–Shenyang high-speed railway

本文针对拟建的京沈客运高铁专线,介绍了该线路工程概况以及北京段区域内的水文地质、工程地质、环境地质背景,详细分析了工程沿线地面沉降发展概况。以《北京市地质灾害危险性评估技术规范》为依据,充分考虑工程沿线地面沉降灾害灾情、危害程度、发育程度等因素,对京沈客运高铁专线北京段进行了地面沉降灾害危险性现状评估和未来五年内地面沉降灾害危险性预测评估,并分别划分现状危险性中、小区段和预测危险性大、中和小区段。提出在建设过程中充分考虑地面沉降影响、严格控制沿线地下水开采、切实落实北京市地面沉降防治规划目标等地面沉降灾害防治建议,为保障工程施工建设和安全运营提供参考。

This paper brielfy introduces the hydrogeology, engineering geology, and environmental geology along the Beijing section of the Beijing-Shenyang high-speed railway, and analyses the situation with regard to land subsidence. On the basis of an analysis of the losses, harmful effects, and degree of development, we evaluate the current situation with respect to land subsidence, and predict ifve years ahead, according to Technical Regulations for Risk Evaluation of Geological Disasters in Beijing. The inlfuence of land subsidence should be ful y considered, and strict controls should be imposed on route planning, with effective measures taken to control land subsidence to ensure safe construction and operation.