某隧道工作井深基坑施工變形特性研究.pdf

1、江蘇科技大學(xué)碩士學(xué)位論文某隧道工作井深基坑施工變形特性研究姓名：許為強(qiáng)申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：姜朋明；尹蓉蓉2011-03-12Abstract III Abstract With the rapid development of modern urban construction, and further development and utilization of underground space, the de

2、ep foundation construction on the surrounding environment influence has been highly valued. How to control the retaining structure deformation and soil displacement around deep foundation, protect the surrounding buildin

3、gs and public facilities is the question which must be considered in excavation process. Background in Pudong working well of Shanghai West Changjiang Road Tunnel, a series of studies for deformation law and control meas

4、ures of retaining structure and soil in the whole process of excavation and supporting construction of deep foundation in soft soil area is carried out, the main contents are as follows: 1.At the excavation process of f

5、oundation with depth of 28m of Pudong working well of Shanghai West Changjiang Road Tunnel, retaining structure deformation and surrounding displacement of soil are actually measured and researched, and the appropriate m

6、onitoring scheme is formulated according to the design and construction project of supporting structure of this foundation. In different conditions, the lateral displacement and the vertical displacement of diaphragm wal

7、l, the settlement of lattice column and soil behind the wall, the axial force of struts, and the settlement of existing buildings are made on monitoring in the whole process. A profoundly analysis is made to monitoring r

8、esults, then obtained the laws of the displacement of diaphragm wall varied with depth, the settlement of lattice column and the vertical displacement of diaphragm wall varied with time, the axial force of struts varied

9、with time, and the settlement of soil behind the wall varied with horizontal distance, can provide a reference to design of same foundation. 2.The full construction process of the retaining scheme in this project was si

10、mulated by three-dimensional finite element software-ADINA according to the actual construction conditions, the nonlinear of soil and interaction between soil and structure are considered in simulation process. The displ

11、acement of diaphragm wall, soil resilience, the axial force of struts, the displacement of soil behind the wall, and so on are obtained in different conditions. 3.The actual measurement data and numerical simulation resu