北京地铁隧道水平冻结和暗挖施工模型试验与实测研究

Model test and prototype observation on artificial ground freezing and tunneling of Beijing subway

摘要: 将人工地层冻结模型试验研究应用于工程实施中,针对我国隧道内首例长距离水平地层冻结和暗挖工程,在冻土壁温度场、地层应力、位移场等方面进行了测试,取得了和工程实测一致的规律和定量结果。说明解决复杂条件下的地下工程施工难题,模型试验研究是一种有效的技术辅助手段。

Abstract: Model test on artificial ground freezing was applied to an underground engineering project—the first long horizontal ground freezing and tunneling in China.The mesured on temperatures and strainstress fields accorded with prototype observation.The model Test was proved to be a good supplermentary method to solve the complex underground engineering problem.