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Effect of cantilever soldier pile foundation excavation closing to an existing composite foundationWANG Gui-he(王贵和), YANG Yu-you(杨宇友)(School of Engineering and Technology, China University..., the displacement of supporting system caused by excavation is mainly in the horizontal direction; while when the adjacent building exists, the displacement of supporting system will be vertical. 2) When......
Comprehensive assessment on dynamic roof instability under fractured rock mass conditions in the excavation disturbed zoneXing-ping Lai1,2,3) ,Fen-hua Ren2) ,Yong-ping Wu1,3) ,and Mei-feng Cai2) 1... that the fracture in rocks induced roof collapse in Yangchangwan Coal Mine,China. The rock mass was particularly weak and fractured. There occurred 6 large-scale dynamical roof falls in the excavation......
Trans. Nonferrous Met. Soc. China 28(2018) 1413-1423 Cutting parameter optimization for one-step shaft excavation technique based on parallel cutting method Qi-yue LI1, Kai LIU1, Xi-bing LI1, Ze-wei... March 2017; accepted 28 December 2017 Abstract: The outcome of the cutting blasting in a one-step shaft excavation is heavily related to the cutting parameters used for parallel cutting method......
Rapid excavation with a newly developed retaining system: Spiral assembly steel structureGUAN Cheng-li(关成立), YANG Yu-you(杨宇友), WANG Cheng-biao(王成彪) (School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China)Abstract:The spiral assembly steel structure, a newly developed retaining wall for the rapid excavation of small-sized foundation pits......
J. Cent. South Univ. (2020) 27: 3852-3874 DOI: https://doi.org/10.1007/s11771-020-4468-x Excavation influence of triangular-distribution tunnels for wind pavilion group of a metro station CHEN Tao... of different triangular-distribution tunnels excavation schemes on the surface settlement and tunnel stability. The objective of this study is to reveal the change rules of surface settlement......
DOI: 10.11817/j.issn.1672-7207.2020.09.024 [21](1) 式中:k为常数.同时,强夯处置地基时产生的夯击能量与落锤高度,夯锤厚度,夯点面积密切相关,这与本次试验得到的结果一致.考虑到夯点间距对夯沉量的作用效果并不显著,因此,可以得出夯沉量与夯击能及夯击遍数呈正相关关系. 图7 3.0 MN·m点夯能级强夯2次时的点夯逐击夯沉量变化曲线 Fig. 7 Successive settlement curves of point tamping twice under 3.0 MN·m compaction energy 4.3 固体体积率试验分析 强......
; 文献标志码:A 文章编号:1672-7207(2017)09-2484-07 Improved TOPSIS-CV method of cut blasting mode evaluation in one-step raise excavation with burn cut LIU... mode for one-step raise excavation, an improved TOPSIS comprehensive evaluation model combining vertical projection approach was developed. Seven indexes considering the economy, technology......
Assessment of temporal and spatial variations in surface water quality using multivariate statistical techniques: a case study of Nenjiang River basin, ChinaZHENG Li-yan(郑力燕), YU Hong-bing(于宏兵), WANG Qi-shan(王启山)(College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China)Abstract:Assessment of temporal and spatial variations in surface water quality is important......
Effects of concurrent grain boundary and surface segregation on the final stage of sintering: the case of Lanthanum doped yttriastabilized zirconiaM.M.Gong1,2,S.Dey2,L.J.Wu2,C.H.Chang2,H.Li2,R.H.R.Castro2,F.Liu11. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University2. Department of Materials Science & Engineering, University of California摘 要:
Mineralogy and fracture development characteristics of marine shale-gas reservoirs: A case study of Lower Silurian strata in southeastern margin of Sichuan Basin, ChinaGUO Ling(郭岭)1, 2, JIANG Zai-xing(姜在兴)3, GUO Feng(郭峰)4(1. State Key Laboratory of Continental Dynamics (Northwest University), Xi’an 710069, China;2. Department of Geology, Northwest University, Xi’an 710069, China;3. School......