盾构机掘进过程中受力平衡分析  

Analysis of stress balance of shield machine in tunneling

作　　者：陈禹臻[1] 曹丽娟[2] 李守巨[3] 上官子昌[4] 

机构地区：[1]大连理工大学机械工程学院,辽宁大连116024 [2]大连水产学院机械工程学院,辽宁大连116024 [3]大连理工大学工业装备结构分析国家重点实验室,辽宁大连116024 [4]大连水产学院土木工程学院,辽宁大连116024

出　　处：《工程建设》2010年第5期1-5,共5页Engineering Construction

基　　金：国家重点基础研究发展规划项目(2007CB714006);国家自然科学基金重点项目(90815023)

摘　　要：对盾构机进行受力平衡分析对于有效地控制地表变形和降低盾构掘进过程中的能源消耗是十分重要的。采用解析方法研究了盾构机掘进过程中的受力状态;研究了掘进工作面土压力、盾壳摩擦阻力和刀盘切刀贯入阻力的解析计算方法。研究表明,掘进工作面土压力阻力大约为盾壳与周围土体摩擦阻力的一半;而刀盘切刀贯入阻力为掘进工作面土压力阻力的20%左右。To investigate stress balance of shield machine in tunneling is very important for controlling ground deformation and decreasing energy consumption effectively.The stress state of shield machine in tunneling was analytically investigated.The computing algorithms for the earth pressure resistance acting on excavation face,friction resistance between shield shell and soil body,and the penetration resistance of cutting hobs were studied.The study shows that the earth pressure resistance acting on excavation face is half of the friction resistance between shield shell and soil body,and the penetration resistance of cutting hobs is 20% of the earth pressure resistance acting on excavation face.

关 键 词：盾构机 受力平衡 贯入阻力 土压力 摩擦阻力 

分 类 号：TU473.5[建筑科学—结构工程]