城市富水砂卵石地层大断面隧道浅埋暗挖工法研究
Research on shallow tunneling construction method of large section tunnel under the water-rich sandy gravel stratum
针对北京富水砂卵石地层大断面隧道地层稳定性差、工程周边环境复杂、对沉降控制要求高等诸多难题，在大断面隧道中采用CRD法、洞桩法进行施工，有效控制了工程结构、沿线及周围建筑物和地下管线的变形，确保了工程及周围环境的安全。
The CRD(cross diaphragm) and hole pile method were adopted in the large section tunnel,aiming at poor geological stability, complex engineering environment and the higher control requirements of subsidence in water-rich sandy gravel stratum of Beijing,which controlled the deformation of engineering structure,surrounding buildings along and underground pipeline effectively and ensured the safety of surrounding environment.
砂卵石地层 / 大断面 / CRD法 / 洞桩法 / 隧道施工
sandy gravel stratum / large section / CRD method / hole pile / tunnel construction
唐国荣（1964—），男，江苏江阳市人，高级工程师，主要从事隧道及地下工程设计审查、咨询等工作
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