强震水下盾构管廊砂土液化区穿越方案研究  

Study on Scheme for Underwater Shield Tunnel Through Sand Liquefaction Zone in Strong Earthquake Load

作　　者：申骞[1] 王道远[1,2,3] 袁金秀[1] 朱正国[2] 

机构地区：[1]河北交通职业技术学院土木工程系,河北石家庄050091 [2]石家庄铁道大学土木工程学院,河北石家庄050043 [3]西南交通大学土木工程学院,四川成都610031

出　　处：《公路工程》2015年第2期54-58,共5页Highway Engineering

基　　金：国家科技支撑计划(2012BAG05B00);国家自然科学基金资助(51478277);河北省高等学校科学技术研究青年基金(QN2014161;QN2014194)

摘　　要：以"河北第一盾"曹妃甸工业区综合管廊工程为依托,选取典型砂土液化断面,利用FLAC2D有限差分软件对强震水下盾构管廊砂土液化区穿越方案进行对比分析。研究结果表明:地层加固范围取3 m,地基强度参数提高1倍即能达到安全与经济的平衡。其结论可为类似工程提供很好的参考和借鉴。Based on the comprehensive pipe Project of Caofeidian Industrial Zone Gallery known as ‘the 1st shield of He Bei＇,select typical section of sand liquefaction,cossing scheme for underwater shield tunnel through sand liquefaction zone in strong earthquake load is studied by flac2 d. The result show that the balance of safety and economic can be reached by range of 3m stratum reinforcement and increasing foundation strength parameters to 2 times. and provided some reference to perfect the related design specifications.

关 键 词：强震区 水下盾构 砂土液化 穿越方案 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]