复合地层下盾构刀盘滚刀刀具的布置与优化  

Disc cutter layout and optimization of shield cutterhead under the composite strata

作　　者：周阳宗[1,2] 孙涛[3] 李杰[3] 章卫 郭京波[3] 

机构地区：[1]中南大学地球科学与信息物理学院,长沙410083 [2]中铁16局集团有限公司,北京101100 [3]石家庄铁道大学机械工程学院,石家庄050043

出　　处：《现代制造工程》2015年第11期128-133,共6页Modern Manufacturing Engineering

基　　金：国家自然科学基金资助项目(51275321);国家863高技术研究项目(2012AA041803);河北省自然科学基金项目(E2015210058);河北省教育厅基金资助项目(YQ2013035)

摘　　要：盾构滚刀刀具直接与岩土接触并进行切削。在复合地层下,滚刀布置的优劣和刀具的寿命与盾构掘进性能的好坏有着直接的联系,影响着盾构的施工效率。以滚刀的布置规律为基础,结合工程实例,分析了某复合地层下影响盾构滚刀刀具布置的关键因素和盾构刀盘刀具的轨迹曲线,并对刀盘的力学性能进行了校核,最后利用遗传算法对滚刀刀具的布置进行了优化,实现了刀盘滚刀刀具布置的最优化。研究结果为复合地层下盾构刀盘刀具的合理布置提供了理论依据,同时也保证了盾构施工的安全性,对提高刀具的使用寿命具有重要的科学意义与工程价值。The disc cutter of a shield directly contacts the soil during excavation. The arrangement pattern of the hob cutter good and bad is direct impact on machine performance and the cutter＇ s life. Based on study the layout principles of hob the key factors affect the shield hob cutter arrangement is analyzed under compound stratum and shield cutter head cutter path curve is analyzed too. The mechanical properties of the cutter head is checked. Finally, the hereditary algorithm technology is used in the hob cutter layout optimization configuration ,the cutter head hob cutter configuration optimization is realized. The results provide theory basis of the shield cutter tool＇ s reasonable configuration in the compound stratum, also make sure the safety of shield construction. It has scientific significance and engineering value to improve the cutter life.

关 键 词：复合地层 滚刀刀具布置 轨迹 性能校核 优化 

分 类 号：U455.3[建筑科学—桥梁与隧道工程]