城市地下工程建设"问题土水"及风险综合防控
Analysis of Risky Stratum and Risk-Base Prevention and Control Measures about Urban Underground Engineering Contraction
徐耀德 1刘永勤 1卢蓉 1刘丹 1谢峰2
作者信息
- 1. 北京城建设计发展集团股份有限公司,北京 100037;北京城建勘测设计研究院有限责任公司,北京 100101
- 2. 北京城建勘测设计研究院有限责任公司,北京 100101
- 折叠
摘要
本文在全面归纳分析首都地区典型地质条件分布及特征、易导致地下工程建设典型施工工法(明挖、矿山、盾构)安全风险及其管控经验的基础上,系统研究了首都地区城市地下工程建设的重大地质风险因素即主要"问题土水"类型,分别为填土及其衍生地层空洞或水囊、砂土及(或)层间潜水、大粒径土及(或)高渗透性潜水-承压水、土岩复合地层(含基岩隆起)及基岩裂隙水、细粒土组合地层及多层地下水,梳理总结了地下工程建设中易导致的工程建设安全风险,最终研究并提出工程建设中(含勘察、设计、施工等)应针对性或加强考虑的工程风险应对或管控措施,为当前及后续北京地区地下工程建设安全风险管控管理提供支撑.
Abstract
The paper analyzed the geological condition and stratums distribution of underground constructions in Beijing area.And this paper also concluded the risky stratums that may lead to the engineering safety accidents in construction process.The risky stratums are as follows:the fill stratum and derivative formation(hole and water capsule in fill stratum);sandy stratum and interlayer phreatic;large-stone stratum and hypertonicity phreatic-confined aquifers;soil-rock compound stratum contained basement uplift and bedrock fissure water;fine-grained strata combination and multi-aquifer.Construction project safety risks are analyzed and control measures are provided including geotechnical investigation,engineering design and construction.This analysis provided condition for future safety risk management of underground construction in Beijing.
关键词
地下工程/地质风险/问题土水/施工工法/风险控制Key words
underground construction/geologic risk/risky stratum/construction method/risk control引用本文复制引用
出版年
2024
NETL
NSTL
万方数据