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., Ltd, Suzhou 215131, China)Abstract:A complete case of a deep excavation was explored. According to the practical working conditions, a 3D non-linear finite element procedure is used to simulate...A case study on behaviors of composite soil nailed wall with bored piles in a deep excavationZHU Feng-bin(朱逢斌)1, 2, MIAO Lin-chang(缪林昌)1, GU Huan-da(顾欢达)2, CHENG Yue-hong(程月红)3(1. Institute......
with the case of a single weak plane. In this case, not only are weak planes activated by progressive slab failure induced by excavation unloading effects but the mutual interaction among weak planes also... the excavation boundaries. 2) The range of failure intensity and damage are further aggravated with increasing weak plane length except for the case of θ=0°. Shearing and sliding along multiple weak planes......
, part of Springer Nature 2021 Abstract: A case of Qinghuayuan tunnel excavation below the existing Beijing Subway Line 10 is presented. The new Qinghuayuan tunnel, part of the Beijing-Zhangjiakou... diameter of the new shield tunnel was 6.34 m. This research presents a comprehensive case study of the new Qinghuayuan shield excavation below the existing subway Line 10 in Beijing. The external......
the case of excavation artificial inducted roadway in the orebody, the case of horizontal or vertical excavation direction and the case of the upward or downward excavation order. The simulation results... excavation order is more helpful for ground pressure to break rock than downward excavation order. Key words: inducted fracturing; high stress hard-rock deposit; excavation case; roadheader excavation......
CASE法及其应用中若干问题的讨论王继华桂林工学院资源与环境工程系 广西 桂林 541004摘 要:CASE法是一种简单近似地确定单桩承载力和判断桩身质量的桩基检测技术,但由于CASE法本身理论上存在一定缺陷性,使其在实际应用中往往理论计算与实际不相符,桩基工程界对CASE法一直褒贬不一.文中简单介绍了CASE法的基本原理,并从辨证的观点和实事求是的态度出发,讨论了CASE法理论的缺陷性,应用的局限性,数据采集处理等问题,并对它的应用领域和应用价值进行了评价.关键词:CASE法;桩基检测;传感器;......
J. Cent. South Univ. (2017) 24: 2164-2171 DOI: https://doi.org/10.1007/s11771-017-3625-3 Calculation of foundation pit deformation caused by deep excavation considering influence of loading... analytical solution for ground surface settlement induced by deep excavation is proposed based on the elastic half space Melan’s solution, and the analytical model is related to the physical and mechanical......
to analyze the dynamic impedance of pile under the excavation condition. Because there is no literature investigating the pile dynamic impedance considering the effect of excavation, a case study... J. Cent. South Univ. (2020) 27: 1870-1879 DOI: https://doi.org/10.1007/s11771-020-4414-y Influence of excavation beneath existing building on dynamic impedances of underpinning pile considering......
between inner column and diaphragm wall in top-down method. Top-down excavation of the Metro Line 10 in Shanghai was modeled with finite element analysis software ABAQUS and parameters of subsoil were...: length of diaphragm wall, thickness of jet-grouting reinforcement layer, ways of subsoil reinforcement, sequence of pit excavation, connection between slabs and diaphragm wall or column and width of pit......
Industrial Experience with Case Hardening of Stainless Steels by Solution Nitriding Bernd Edenhofer1,Roland Zaugg2,Hans Berns3 (1.IPSEN Industries International GmbH, D-47514 Kleve, Germany;2.H(a;3.Ruhr University, Materials Technology, D-44780 Bochum, Germany) 摘要:SolNit(R) is a novel heat treatment to case harden stainless steels with nitrogen instead of carbon. The calculated equilibrium......
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