ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2020, Vol. 40 ›› Issue (1): 43-49.DOI: 10.3973/j.issn.2096-4498.2020.01.006
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XIN Zhenggang
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Abstract:
The jacking experiment is carried out on pipecurtain group with inner interlock joints adjacent to Tianlinlu Project in Shanghai crossing underneath pipe curtainbox culvert section, so as to study the feasibility and safety of inner interlock joints. The curtain pipe stiffness, interlock stiffness and curtain pipe jacking sequence, jacking excavation and attitude controlling technology, and jacking lubrication and jacking force control are studied by numerical simulation method. The experiment and simulation results show that: (1) With the help of inner interlock joints, the accurate attitude control, smooth curtain pipe closure, and good water proofing performance can be guaranteed. (2) The curtain pipes with inner interlock joints have sufficient stiffness. (3) The boring machines, deviation controlling system and backup system adopted can precisely control the pipe curtain jacking with axis deviation within ±1 cm. (4) The inner interlock joints have effective guiding effect in the experiment.
Key words: pipecurtain group, inner interlock joints, ANSYS numerical simulation, attitude controlling technology, stiffness
CLC Number:
U 455
XIN Zhenggang. Experimental Study on AttitudeInterlock Control Technology of Pipecurtain Group with Inner Interlock Joints[J]. Tunnel Construction, 2020, 40(1): 43-49.
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http://www.suidaojs.com/EN/Y2020/V40/I1/43
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