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复合地层盾构施工中泡沫对刀盘扭矩的影响分析及参数优化
收稿日期: 2015-12-04
修回日期: 2016-01-29
网络出版日期: 2016-08-17
基金资助
国家自然科学基金资助项目(51275321); 河北省自然科学基金资助项目(E2015210058); 河北省教育厅基金资助项目(YQ2013035)
Analysis of Influence of Foam on Cutterhead Torque of Shield Boring in Composite Strata and Its Parameter Optimization
Received date: 2015-12-04
Revised date: 2016-01-29
Online published: 2016-08-17
李杰 , 郭京波 , 戴树合 , 张增强 , 章卫 , 牛江川 . 复合地层盾构施工中泡沫对刀盘扭矩的影响分析及参数优化[J]. 隧道建设, 2016 , 36(8) : 906 -910 . DOI: 10.3973/j.issn.1672-741X.2016.08.003
The foam is usually used to carry out ground conditioning. The ground conditioning will affect shield boring performance directly, and it is the key to tunnel face stability, shield boring efficiency and wear of cutting tools. The ground conditioning effect of shield boring in composite strata of Humen Shangmaocheng StationChang’an Xiabian Station on GuangzhouDongguanShenzhen intercity railway is studied. The numerical models for cutterhead torque and boring parameters of shield boring in composite strata are established. The influence of foam on cutterhead torque is analyzed; and then the boring parameters are optimized. The analytical results show that the cutterhead torque can reach the optimal value (2 033.1 kN·m) when the volume of foam reaches 0.01 m3 and the volume fraction of foam reaches 7%.
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