铁道科学与工程学报2017，Vol.14Issue(10)：2194-2202,9.
盾构下穿敏感性建筑的管棚+ 水平冻结接收技术
Shield receiving technology of pipe-roof grouting and horizontal freezing entrancing beneath sensitive buildings
摘要
Abstract
Wuxi Underground Shenglimen Station~Sanyang Square Station interval right line shield locates in small radius curve receiving section of soft formation, and it is required to thread into the shopping mall sensitive buildings. The shield is 3.7 m from the shopping mall foundation bottom. Under the condition of ground reinforcement, the shield receiving is adopted by horizontal freezing and grouting reinforcement. In this paper, the cup type horizontal freezing reinforcement scheme of 3 m in thickness and 11.4 m in length was revealed, the freezing temperature field was measured and analyzed, and the change law of the development of the frozen wall was obtained. The technology and parameters of grouting reinforcement for end pipe roof were put forward, together with the driving parameters of the shield tunneling to the small radius curved line segment and the frozen soil of the cutting cup bottom. The concrete parameters of the grouting were carried out in the thaw settlement, and the deformation of the building was monitored in real time. The measured results show that the horizontal freezing and grouting reinforcement effect is good. The maximum settlement of the main building of the oasis shopping mall is only 2.6 mm. It is proved that the horizontal freezing and grouting technology is reasonable and feasible, which provides a feasible technology for the similar projects in the future.关键词
水平冻结/管棚注浆/温度场/沉降控制/盾构接收Key words
horizontal freezing/pipe–roof grouting/temperature field/settlement control/shield receiving分类
建筑与水利引用本文复制引用
刘健鹏,杨平,何文龙,刘玉江..盾构下穿敏感性建筑的管棚+ 水平冻结接收技术[J].铁道科学与工程学报,2017,14(10):2194-2202,9.基金项目
住房和城乡建设部科学技术项目(2014-k3-029) （2014-k3-029）
