摘要
盾构机在小半径曲线段施工时平面姿态难以控制,实际施工中施工人员主要凭经验确定主要参数,缺少相关理论依据。对盾构机的平面姿态进行了分析,提出了合理的盾构机平面状态,即盾构机刀盘紧靠外边界通过曲线地段;得到了合理的盾构机平面姿态时盾构机的内外侧千斤顶行程关系,施工中只要控制内侧千斤顶顶推量,即可得到外侧千斤顶顶推量;得到了合理的盾构机平面状态时不同顶推量时盾构机的最大超挖量计算方法;提出只对曲线内侧进行超挖,上、下均不超挖,并得到了不同角度位置超挖刀伸出量计算方法。成果可为曲线地段盾构姿态智能控制提供理论基础。
It is difficult to control the plane posture of shield tunneling machines during construction on small radius curved sections.In actual construction,construction person mainly determine the main parameters based on experience,and there is currently no relevant theoretical basis.This article analyzes the plane posture of shield tunneling machines and proposes a reasonable plane state for shield tunneling machines,that is,the cutter head of the shield tunneling machine passes through curved sections close to the outer boundary;When obtaining a reasonable plane posture of the shield tunneling machine,the relationship between the inner and outer jack travel of the shield tunneling machine can be obtained.During construction,as long as the pushing amount of the inner jack is controlled,the pushing amount of the outer jack can be obtained;A reasonable calculation method for the maximum over excavation amount of the shield machine under different top pushing amounts in the plane state of the shield machine is obtained;It is proposed to only perform over excavation on the inner side of the curve,without over excavation on both the upper and lower sides,and a calculation method for the extension of the over excavation knife at different angle positions is obtained.The results have laid the theoretical foundation for intelligent control of shield tunneling posture in curved sections.
作者
黄大维
余珏
徐长节
陈后宏
陈凯
Huang Dawei;Yu Jue;Xu Changjie;Chen Houhong;Chen Kai(State Key Laboratory of Safety and Resilience of Civil Engineering in Mountain Area,East China Jiaotong University,Nanchang 330013,P.R.China;Jiangxi Provincial Key Laboratory of Comprehensive Stereoscopic Traffic Information Perception and Fusion,East China Jiaotong University,Nanchang 330013,P.R.China)
出处
《地下空间与工程学报》
北大核心
2025年第5期1685-1693,共9页
Chinese Journal of Underground Space and Engineering
基金
国家自然科学基金(52378398)
江西省主要学科学术和技术带头人领军人才项目(20232BCJ22009)
江西省自然科学基金(20242BAB26077)。
关键词
盾构法
平面姿态控制
超挖量
顶推行程差
智能化
shield tunneling construction
plane attitude control
over excavation amount
top push process difference
intelligent
