分体组合式矩形顶管机关键技术探究——结合中铁装备地下停车场项目
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摘要
为解决分体组合式矩形顶管机高精高效掘进难题,以中铁装备厂区地下停车场项目为依托,对矩形顶管机分体组合式结构适应性、位姿(位置与姿态)控制、组合式小刀盘开挖系统设计等关键技术展开研究:1)提出新型组合连接形式,解决因设备组合带来的密封、管线联通等结构适应性问题; 2)创新盾体铰接结构,提出分体组合式顶管机复合位姿控制方法,即以纠偏油缸为主,双螺旋输送机互馈出渣为辅的协同纠偏策略,多刀盘转向转速控制与主机周向多点加压控制相结合的纠滚策略,实现浅覆土、零间距隧洞的高精度施工; 3)基于回归分析方法,探讨小刀盘扭矩系数随刀盘直径、刀盘布置位置的变化规律,建立直径3 m以下小刀盘扭矩系数的计算模型,为多刀盘系统驱动配置提供理论依据。
The split-unit rectangular pipe jacking with high precision and high efficiency is very difficult. Hence, study is made on the applicability of split-unit structure, design of position and attitude control, and design of excavation system of composite small cutterheads of rectangular pipe jacking machine boring in the underground parking lot project of CREG. Some conclusions are drawn as follows:(1) A new type of combination method is proposed, which solves the problems of structure adaptability of split-unit rectangular pipe jacking machine, such as sealing and pipeline communication brought by equipment combination.(2) The hinged structure of shield body is innovated; and the compound position and attitude control methods of the split-unit pipe jacking machine, i.e. coordination deviation rectifying by deviation cylinder and double screw convey mucking, and rotation deviation rectifying by multi-cutterhead speed and direction control and loading control along radial direction of main machine, are put forward.(3) The variation law of torque coefficient of small cutterhead with cutterhead diameter and layout is discussed by regression analysis method; and a calculation model of torque coefficient of small cutterhead, with diameter less than 3 m, is built, which can provide a theoretical basis for drive configuration of the multi-cutterhead system.
The split-unit rectangular pipe jacking with high precision and high efficiency is very difficult. Hence, study is made on the applicability of split-unit structure, design of position and attitude control, and design of excavation system of composite small cutterheads of rectangular pipe jacking machine boring in the underground parking lot project of CREG. Some conclusions are drawn as follows:(1) A new type of combination method is proposed, which solves the problems of structure adaptability of split-unit rectangular pipe jacking machine, such as sealing and pipeline communication brought by equipment combination.(2) The hinged structure of shield body is innovated; and the compound position and attitude control methods of the split-unit pipe jacking machine, i.e. coordination deviation rectifying by deviation cylinder and double screw convey mucking, and rotation deviation rectifying by multi-cutterhead speed and direction control and loading control along radial direction of main machine, are put forward.(3) The variation law of torque coefficient of small cutterhead with cutterhead diameter and layout is discussed by regression analysis method; and a calculation model of torque coefficient of small cutterhead, with diameter less than 3 m, is built, which can provide a theoretical basis for drive configuration of the multi-cutterhead system.
引文
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[13] 狄晓红. 砂卵石层矩形顶管机切削技术及排渣系统研究与应用[J]. 隧道建设, 2018, 38(5): 865.DI Xiaohong. Study and application of cutting technology and mucking system of rectangular pipe jacking machine in sandy cobble strata[J]. Tunnel Construction, 2018, 38(5): 865.
[14] 地盘工学会. 盾构法的调查·设计·施工[M]. 牛清山, 陈凤英, 徐华, 译. 北京: 中国建筑工业出版社, 2008. Japanese Geotechnical Society. Investigation, design and construction of shield construction[M]. Translators: NIU Qingshan, CHEN fengying, XU Hua. Beijing: China Architecture & Building Press, 2008.
[15] 贾连辉, 范磊, 冯猛. 马蹄形盾构机研制关键技术及工程应用[J].中国铁道科学, 2018, 39(6): 61.JIA Lianhui, FAN Lei, FENG Meng. Key technology and engineering application of horseshoe-shaped shield machine[J]. China Railway Science, 2018, 39(6): 61.
[2] 贾连辉. 矩形顶管在城市地下空间开发中的应用及前景[J]. 隧道建设, 2016, 36(10): 1269.JIA Lianhui. Application of rectangular pipe jacking machine to urban underground space development and its prospects[J]. Tunnel Construction, 2016, 36(10): 1269.
[3] 赵晋友, 黄松. 城市地下空间开发面临的机遇与挑战[J]. 地质与勘探, 2013, 49 (5): 964.ZHAO Jinyou, HUANG Song. Opportunities and challenges in the development of urban underground space[J]. Geology and Exploration, 2013, 49(5): 964.
[4] 余剑锋. 矩形顶管的发展和关键技术综述[J]. 广东土木与建筑, 2015(11): 51. YU Jianfeng. Review on development and key technology of rectangular pipe jacking[J]. Guangdong Architecture Civil Engineering, 2015(11): 51.
[5] 建设工业新闻.鹿岛建设研制出R-SWING 工法三联掘进机[J]. 程邵磊, 译. 科技情报信息, 2016, (21): 6.Construction Industry News. R-SWING Sanlian boring machine manufactured by Kajim Construction Co., Ltd.[J]. Translator: CHENG Shaolei. Scientific Information, 2016(21): 6.
[6] 大木智明. 密閉型矩形シールド工法の開発(パドルシールド工法)[J]. 新技術新工法部門, 2015(17): 1.OOKI Chiaki. Development of close type rectangular shield machine (slurry shield)[J]. New Technology New Method,2015(17): 1.
[7] 余彬泉, 贾连辉, 范磊. 顶管技术[M]. 北京: 人民交通出版社股份有限公司, 2018.YU Binquan, JIA Lianhui, FAN Lei. Pipe jacking technology[M]. Beijing: China Communications press Co., Ltd., 2018.
[8] 魏建. 面向纠偏工况的盾构机载荷模型及仿真研究[D]. 大连: 大连理工大学, 2010.WEI Jian. Load model and simulation studies of shield machine oriented to rectification working conditions[D]. Dalian: Dalian University of Technology, 2010.
[9] 王小涛, 贾连辉, 贺开伟. 矩形顶管机刀盘的设计讨论[J].城市建设理论研究, 2013, 3(13): 183.WANG Xiaotao, JIA Lianhui, HE Kaiwei. Discussion on design of the cutterhead of rectangular pipe jacking machine[J]. Urban Construction Theory Research, 2013, 3(13): 183.
[10] 贾连辉. 超大断面矩形盾构顶管设计关键技术[J]. 隧道建设, 2014, 34 (11): 1098. JIA Lianhui. Key technologies for design of super-large rectangular pipe jacking machine[J]. Tunnel Construction, 2014, 34(11): 1098.
[11] 濮良贵, 纪名刚, 陈国定, 等. 机械设计[M].第八版. 北京: 高等教育出版社, 2006.PU Lianggui, JI Minggang, CHEN Guoding, et al. Design of machinery[M]. 8th edtion. Beijing: Higher Education Press, 2006.
[12] 陈世友, 范磊, 徐德帆, 等. 一种用于成都砂卵石地层的矩形顶管刀盘设计[J]. 建设机械化, 2018, 39 (11): 42.CHEN Shiyou, FAN Lei, XUE Defan, et al. A cutterhead design of rectangular pipe jacking machine using in Chengdu sandy gravel stratum[J].Construction Mechanization, 2018, 39(11): 42.
[13] 狄晓红. 砂卵石层矩形顶管机切削技术及排渣系统研究与应用[J]. 隧道建设, 2018, 38(5): 865.DI Xiaohong. Study and application of cutting technology and mucking system of rectangular pipe jacking machine in sandy cobble strata[J]. Tunnel Construction, 2018, 38(5): 865.
[14] 地盘工学会. 盾构法的调查·设计·施工[M]. 牛清山, 陈凤英, 徐华, 译. 北京: 中国建筑工业出版社, 2008. Japanese Geotechnical Society. Investigation, design and construction of shield construction[M]. Translators: NIU Qingshan, CHEN fengying, XU Hua. Beijing: China Architecture & Building Press, 2008.
[15] 贾连辉, 范磊, 冯猛. 马蹄形盾构机研制关键技术及工程应用[J].中国铁道科学, 2018, 39(6): 61.JIA Lianhui, FAN Lei, FENG Meng. Key technology and engineering application of horseshoe-shaped shield machine[J]. China Railway Science, 2018, 39(6): 61.
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