检索范围:
排序: 展示方式:
《机械工程前沿(英文)》 2022年 第17卷 第2期 doi: 10.1007/s11465-022-0676-4
关键词: additional position change deviation correction trajectory earth pressure balance shield mechanical model posture rectification
Identification of abnormal operating conditions and intelligent decision system
Xiuliang LI, Junjie JIANG, Hongye SU, Jian CHU
《机械工程前沿(英文)》 2011年 第6卷 第4期 页码 456-462 doi: 10.1007/s11465-011-0224-0
In earth pressure balance (EPB) shield construction, the “plastic flow state” is difficult to form using the soil dug in the capsule because it can cause three abnormal operating conditions, including occlusion, caking in the capsule, and spewing at the outlet of the dump device. These abnormal operating conditions can, in turn, trigger failure in tunneling, cutter-device damage, and even catastrophic incidents, such as ground settlement. This present paper effectively integrates the mechanism of abnormal operating conditions and knowledge of soil conditioning, and establishes a uniform model of identifying abnormal conditions and intelligent decision support system based on the belief rule-base system. The model maximizes knowledge in improving the soil, construction experience, and data to optimize the model online. Finally, a numerical simulation with specific construction data is presented to illustrate the effectiveness of the algorithm.
关键词: earth pressure balance (EPB) shield machine soil pressure cabin abnormal operating condition belief rule-base system
ZHU Hehua, LIAO Shaoming, XU Qianwei, ZHENG Qizhen
《结构与土木工程前沿(英文)》 2008年 第2卷 第4期 页码 350-358 doi: 10.1007/s11709-008-0051-5
《结构与土木工程前沿(英文)》 页码 1387-1399 doi: 10.1007/s11709-023-0005-y
关键词: EPB shield bubble–slurry soil conditioning stability permeability
Prediction of shield tunneling-induced ground settlement using machine learning techniques
Renpeng CHEN, Pin ZHANG, Huaina WU, Zhiteng WANG, Zhiquan ZHONG
《结构与土木工程前沿(英文)》 2019年 第13卷 第6期 页码 1363-1378 doi: 10.1007/s11709-019-0561-3
关键词: EPB shield shield tunneling settlement prediction machine learning
《结构与土木工程前沿(英文)》 2023年 第17卷 第4期 页码 522-532 doi: 10.1007/s11709-023-0930-9
关键词: tunnel face stability cutterhead configuration aperture ratio pressure gradient support ratio
《结构与土木工程前沿(英文)》 2021年 第15卷 第6期 页码 1480-1493 doi: 10.1007/s11709-021-0776-y
关键词: seismic active earth pressure partial seepage flow pore pressure anisotropy upper bound theorem
Simulation analysis of pressure regulation of hydraulic thrust system on a shield tunneling machine
Zhibin LIU, Haibo XIE, Huayong YANG
《机械工程前沿(英文)》 2011年 第6卷 第3期 页码 377-382 doi: 10.1007/s11465-011-0226-y
Hydraulic thrust system is an important system in a shield tunneling machine. Pressure regulation of thrust cylinders is the most important function for thrust system during tunnel excavation. In this paper, a hydraulic thrust system is explained, and a corresponding simulation model is carried out in order to study the system characteristics. Pressure regulation of a certain group’s cylinders has little influence on regulation of the other groups’ cylinders. The influence will not affect the process much during tunnel excavation. Pump displacement may have a greater effect on pressure regulation and oil supply flow rate should be adaptive to the system’s demand. A exacting situation is simulated to explain how pressure regulation works during tunnel excavation.
关键词: tunnel hydraulic thrust system pressure regulation simulation
Clogging of slurry-shield tunnel-boring machine drives in sedimentary soft rock: A case study
《结构与土木工程前沿(英文)》 doi: 10.1007/s11709-023-0984-8
关键词: slurry-shield TBM geological investigation clogging argillaceous siltstone TBM performance mitigation measures
软土机械化隧道开挖——冰积层开挖模式的选择与土壤改良添加剂的运用
Rolf Zumsteg, Lars Langmaack
《工程(英文)》 2017年 第3卷 第6期 页码 863-870 doi: 10.1016/j.eng.2017.11.006
Wanghui BU, Zhenyu LIU, Jianrong TAN, Jin CHENG
《机械工程前沿(英文)》 2011年 第6卷 第4期 页码 463-467 doi: 10.1007/s11465-011-0225-z
The shield machine is a heavy construction machine for tunnel excavation, and the segment erector is an important subsystem of the shield machine. It is difficult to achieve precise control in the 6-DOF (degree of freedom) erector in the 2-DOF 5-bar radial mechanism. Hence, this paper proposes a redundantly actuated PRPRP radial mechanism for the segment erector. When the redundant actuator is unlocked, the radial mechanism is able to adjust its posture, which has two degrees of freedom. On the other hand, when the redundant actuator is locked or produces enough pre-tightening tensile force, the PRPRP mechanism can ensure the synchronization of the two driving hydraulic cylinders along the radial direction based on the mechanical structure, which has one degree of freedom. The redundant actuator also facilitates the equal application of two flexural torques at the hydraulic cylinders; thus, preventing the overload of a single cylinder.
关键词: redundant actuation parallel mechanisms five-bar mechanisms segment erectors shield machines
孟海峰,苏清贵,翟志国
《中国工程科学》 2010年 第12卷 第12期 页码 70-74
通过对北京铁路地下直径线带压进仓换刀工程实例的分析,探讨了注浆加固及桩基加固在地层加固中的应用,分析了带压进仓的漏气原因并采取相应的应对措施,保证了盾构的正常施工。
Experimental study on slurry-induced fracturing during shield tunneling
Teng WANG, Dajun YUAN, Dalong JIN, Xinggao LI
《结构与土木工程前沿(英文)》 2021年 第15卷 第2期 页码 333-345 doi: 10.1007/s11709-021-0718-8
关键词: slurry shield tunneling hydraulic fracturing test fracturing pressure fracture dip unconfined compressive strength slurry viscosity
Coulomb-type solutions for passive earth pressure with steady seepage
WANG Junjie, CHAI Hejun, LIN Xin, XU Jiamei
《结构与土木工程前沿(英文)》 2008年 第2卷 第1期 页码 56-66 doi: 10.1007/s11709-008-0001-2
关键词: function coefficient Coulomb-type effective friction different drainage
Hu SHI, Guofang GONG, Huayong YANG
《机械工程前沿(英文)》 2011年 第6卷 第3期 页码 369-376 doi: 10.1007/s11465-011-0223-1
Focusing on a segment erector of a shield-tunneling machine developed with 6 degrees of freedom (DOF) and controlled by electro-hydraulic proportional systems, the kinematics of the segment erection process is presented. The perturbation method in the error analysis is introduced to establish the position and attitude error model, considering a number of factors such as the hydraulic drive, control accuracy, and tolerance in manufacturing and assembly. Dynamic simulations are carried out to obtain the controlling precision of electrohydraulic drive systems. Formulas for calculating the position and attitude error of the grip hand of the segment erector are derived. The calculation results verify the practicality and effectiveness of the error analysis, providing a foundation for practical designing, manufacturing, and assembling of the segment of the erecting mechanism.
关键词: shield tunneling machine segment erector kinematics position and attitude precision
标题 作者 时间 类型 操作
Deviation correction strategy for the earth pressure balance shield based on shield–soil interactions
期刊论文
Identification of abnormal operating conditions and intelligent decision system
Xiuliang LI, Junjie JIANG, Hongye SU, Jian CHU
期刊论文
Experimental study on working parameters of earth pressure balance shield machine tunneling in soft ground
ZHU Hehua, LIAO Shaoming, XU Qianwei, ZHENG Qizhen
期刊论文
Experimental study on the stratum applicability and mechanisms of bubble–slurry for earth pressure balance
期刊论文
Prediction of shield tunneling-induced ground settlement using machine learning techniques
Renpeng CHEN, Pin ZHANG, Huaina WU, Zhiteng WANG, Zhiquan ZHONG
期刊论文
Effect of cutterhead configuration on tunnel face stability during shield machine maintenance outages
期刊论文
Upper bound solution to seismic active earth pressure of submerged backfill subjected to partial drainage
期刊论文
Simulation analysis of pressure regulation of hydraulic thrust system on a shield tunneling machine
Zhibin LIU, Haibo XIE, Huayong YANG
期刊论文
A redundantly actuated PRPRP radial mechanism in the segment erector of a shield machine for synchronization
Wanghui BU, Zhenyu LIU, Jianrong TAN, Jin CHENG
期刊论文
Experimental study on slurry-induced fracturing during shield tunneling
Teng WANG, Dajun YUAN, Dalong JIN, Xinggao LI
期刊论文
Coulomb-type solutions for passive earth pressure with steady seepage
WANG Junjie, CHAI Hejun, LIN Xin, XU Jiamei
期刊论文