中南大学学报（自然科学版）2018，Vol.49Issue(6)：1491-1497,7.DOI:10.11817/j.issn.1672-7207.2018.06.023
软土区盾构刀盘扭矩分析及对地表变形影响
Analysis of torque of shield cutter head and its influence on surface deformation in soft soil region
摘要
Abstract
Based on the project of Hangzhou Metro Line 2, a calculation method of torque of cutter head for the soft soil region was put forward. The correlation between surface deformation and the torque of cutter head in shield tunneling was tested. The result indicates that the torque of cutter head in soft soil region can be composed of seven influential factors. The calculated theoretical maximum torque is about 10% larger than the measured maximum torque. Furthermore, a positive correlation is found between the instantaneous surface deformation at the top of the excavation face and the ratio of the torque of cutter to the single ring excavated soilM. In the case of a certain torque value, the surface deformation is gradually changed from settlement to uplift with the reduction of the amount of the single ring excavated soil.关键词
刀盘扭矩/盾构掘进/土压平衡盾构/地表变形Key words
torque of cutter head/shield tunneling/earth pressure balance shield/surface deformation分类
交通工程引用本文复制引用
魏新江,王凡勇,丁智,范俊聪..软土区盾构刀盘扭矩分析及对地表变形影响[J].中南大学学报（自然科学版）,2018,49(6):1491-1497,7.基金项目
浙江省自然科学基金资助项目(LQ16E080008) （LQ16E080008）
国家自然科学基金资助项目(51278463,51508506) （51278463,51508506）
浙江省重点研发计划项目(2017C03020) （2017C03020）
杭州市科技计划项目(20160533B94, 20172016A06)(Project(LQ16E080008) supported by the Natural Science Foundation of Zhejiang Province （20160533B94, 20172016A06）
Projects (51278463, 51508506) supported by the National Natural Science Foundation of China （51278463, 51508506）
Project(2017C03020) supported by the Key Research and Development of Zhejiang Province （2017C03020）
Projects(20160533B94, 20172016A06) supported by the Science and Technology Program of Hangzhou) （20160533B94, 20172016A06）
