| 刘宣宇.盾构机密封舱土压平衡综合优化控制[J].,2013,53(3):447-454 |
| 盾构机密封舱土压平衡综合优化控制 |
| An integrated optimization control for earth pressure balance in pressure chamber of shield machine |
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| DOI：10.7511/dllgxb201303022 |
| 中文关键词: 土压平衡盾构机 密封舱 综合优化控制 地层识别 预测控制 |
| 英文关键词: earth pressure balance shield machine pressure chamber integrated optimization control stratum identification predictive control |
| 基金项目:国家自然科学基金资助项目(61074020,61104058)；中国博士后基金资助项目(2012M510298)；北京市博士后科研活动经费资助项目(2012ZZ-04) |
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| 中文摘要: |
| 为了实现盾构机掘进过程密封舱土压平衡的精确高效控制,提出了盾构刀盘系统、推进系统和排渣系统
的综合优化控制方法．设计了以扭矩切深指数(TPI)和场切深指数(FPI)为特征输入参数的地层识别系统,
然后建立了专家控制系统,根据地层识别的量化结果和控制规则给出刀盘转速的控制策略；在此基础上,提
出了采用最小二乘支持向量机(LS-SVM)非线性预测控制方法来协调控制推进速度和螺旋输送机转速,并利
用蚁群算法(ACS)滚动优化控制变量,实现密封舱土压平衡控制．实验结果表明即使在工况发生变
化时亦能够很好地控制密封舱土压平衡,证明了方法的有效性,实现了盾构机土压平衡的多子系统协调优化
控制． |
| 英文摘要: |
| In order to control the earth pressure balance (EPB) of pressure chamber more accurately
and efficiently during tunneling process, an integrated optimization control method is
proposed for cutter head system, thrust system and discharge system. A stratum
identification system is designed which takes the torque penetration index (TPI) and field
penetration index (FPI) as input character parameters. An expert control system is
established, and it can give the control strategy of cutter speed based on the quantitative
results of stratum identification and control rules. On this basis, a least squares-support
vector machine (LS-SVM) nonlinear predictive control strategy is given to coordinatively
control advance speed and screw conveyor speed, and the control variables can be rollingly
optimized by means of ant colony system (ACS) algorithm. The experiments show that the earth
pressure balance in chamber can be controlled very well even though the working condition
changes, which demonstrates the effectiveness of this method and the earth pressure balance
in chamber can be realized by multiple subsystems coordinative optimization control. |
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