盾构开挖引起土体沉降灾害研究浅述

Review of Research on Soil Settlement Disasters Caused by Shield Tunneling Excavation

盾构法以其高集成技术和先进性被广泛应用于隧道施工,尤其在地铁隧道施工。盾构法因独特构造、复杂地质、工况等因素,会引起隧道一定范围土体下沉,且目前尚难完全防止这种沉降现象的发生。对此基础性问题,结合大量相关研究文献,分析盾构隧道土体沉降机理,对隧道的土体沉降影响因素进行全面综述,提出预防和治理盾构开挖引起隧道土体沉降灾害的对策和建议,并对今后的研究做出展望。The shield method is widely used in tunnel construction, especially in subway tunnel construction, because of its highly integrated technology and progressive nature. The shield tunneling method, due to its unique structure, complex geology, and working conditions, can cause soil subsidence within a certain range of the tunnel, and it is still difficult to completely prevent this subsidence phenomenon from occurring. This fundamental issue, combined with a large number of related research, analyzes the mechanism of soil settlement in shield tunnels, and the factors affecting soil settlement in tunnels are comprehensively reviewed. It puts forward countermeasures and suggestions for the prevention and management of tunnel soil settlement disasters caused by shield excavation and makes a prospective study for future research.