|
|
|
| Determination of thrust force for shield tunneling machine |
| SHI Hu, GONG Guo-fang, YANG Hua-yong, WANG Hui |
| State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China |
|
|
|
Abstract Various influential factors related to determining thrust force were analyzed in order to reduce the uncertainties existing in determination of total thrust force of shield tunneling machine by traditional method. All resistance forces acted on a metro shield machine with 6 m diameter were calculated, and the approximate calculation model composed of several components was given by neglecting the minor components. Experiments were conducted on an earth pressure balanced shield test rig. Results show that earth pressure plays a key part in thrust force calculation, regardless of in clay and sandy soil. Cutting ratio and a relationship with thrust force were developed to establish a more accurate model based on two important factors of earth pressure and cutting ratio．
|
|
Published: 03 March 2011
|
|
|
盾构掘进机推进力计算模型
为了解决传统基于经验系数的盾构掘进机总推进力计算公式在确定推力时存在随机性的问题,在分析盾构掘进机总推进力的各种影响因素及计算方法的基础上,以直径为6 m的地铁盾构为对象,计算在盾构掘进过程中受到的各种推进阻力,通过对比忽略次要部分,建立盾构推进分项阻力计算模型.利用土压平衡盾构模拟试验台对在黏土和砂土2种土质条件下的计算模型进行验证.结果表明,土压力在推进力计算中发挥关键性作用.为了进一步修正分项阻力计算模型,提出切深率的概念,分析切深率与盾构总推进力之间的关系,确定由土压力与切深率2个重要因素组成的推进力计算模型.
|
|
| ［1］ BERNHARD M,MARTIN H,LOTHAR A.Mechanised shield tunneling ［M］. Berlin: Ernst＆Sohn, 1996:10-12．
［2］ 宋克志.无水砂卵石地层盾构推力及刀盘转矩的计算［J］.建筑机械,2004,11(10)：58-61．
SONG Kezhi. Calculation of shield thrust force and cutterhead torque in sandy gravel ［J］. Construction Machine, 2004,11(10)：58-61．
［3］ 王良.盾构法施工在北京地铁5号线的应用［J］.都市快轨交通,2004,17(5):33-37．
WANG Liang. Application of shield tunneling method in Beijing Metro Line 5 ［J］. Urban Rapid Rail Transit, 2004, 17(5): 33-37．
［4］ 何其平.南京地铁盾构选型研究［D］.成都：西南交通大学,2004．
HE Qiping. The type selection of shield for Nanjing Metro ［D］. Chengdu: Southwest Jiaotong University, 2004．
［5］ 白中仁.广州地铁三号线客大盾构区间盾构及选型技术［D］. 成都：西南交通大学,2003．
BAI Zhongren. Shield tunneling study to KecunDatang section, No.3 line of Guangzhou subway ［D］. Chengdu: Southwest Jiaotong University, 2003．
［6］ 傅德明, 杨国祥. 上海地区越江交通盾构施工技术综述［C］∥国际隧道研讨会暨公路建设技术交流大会论文集. 北京：人民交通出版社,2002．
FU Deming, YANG Guoxiang. Overview of shield construction technology in Shanghai river crossing transportation ［C］∥Proceeding of International Workshop on Tunnel Highway Construction Technology. Beijing: China Communications Press, 2002．
［7］ 王洪新,傅德明.土压平衡盾构掘进的数学物理模型几个参数间关系研究［J］.土木工程学报,2006,39(9): 86-90．
WANG Hongxin, FU Deming. A mathematical model and the related parameters for EPB shield tunneling ［J］.China Civil Engineering Journal, 2006, 39(9): 86-90．
［8］ 周文波.盾构法隧道施工技术及应用［M］.北京：中国建筑工业出版社,2004:35-42．
［9］ 徐东强.土力学［M］.北京：中国建材工业出版社,2006:57-63．
［10］ 尹旅超,朱振宏,李玉珍,等.日本隧道盾构新技术［M］.武汉：华中理工大学出版社,1999: 112-115．
［11］ 胡国良,龚国芳,杨华勇.盾构掘进机土压平衡的实现［J］.浙江大学学报：工学版,2006,40（5）：874-877．
HU Guoliang, GONG Guofang, YANG Huayong. Realization of earth pressure balance for shield tunnelling machine ［J］. Journal of Zhejiang University: Engineering Science, 2006, 40(5): 874-877．
［12］ 邢彤.盾构刀盘液压驱动与控制系统研究［D］.杭州：浙江大学,2008．
XING Tong. Research on hydraulic drive and control system of the cutter head in shield tunneling machine ［D］. Hangzhou: Zhejiang University, 2008． |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
