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based on nonlinear failure criterion. Numerical results under the effect of river water and supporting pressure are derived and discussed. The maximum water depth above the river bottom surface...Determination of minimum cover depth for shallow tunnel subjected to water pressureHUANG Fu(黄阜)1, QIN Chang-bing(覃长兵)2, LI Shu-cai(李术才)3(1. School of Civil Engineering and Architecture, Changsha......
into surface water in Pearl River Delta. As a consequence, the total Pb concentrations in soils in plenty of agricultural areas are higher than the threshold of natural background in China due... in Mexico [J]. Water Science and Technology, 1999, 40: 45-52. [6] CHEN Yu-juan, WEN Yan-mao, CHAI Shi-wei. The heavy metal content character of agricultural soil in the Pearl River Delta [J]. Research......
by the Hunhe River and Xihe River surface water together in the middle of the fan, based on the flow model. Benzo(a) pyrene(BaP) with the highest detection rate of the organic contamination was selected...): 2057-2061. SONG Xueying, SUN Lina, WANG Xin, et al. Organic contamination status of Xihe River surface water and its riverbank underground water[J]. Chinese Journal of Ecology, 2007, 26(12): 2057-2061. [24......
造床流量增加,下游河道主槽过流输沙能力提高. 3) 目前黄河下游造床能力已由第一造床流量大于第二造床流量转变为第二造床流量大于第一造床流量. 参考文献: [1] 谢鉴衡. 河流模拟[M]. 北京: 水利电力出版社, 1990: 1-36. XIE Jianheng. River simulation[M]. Beijing: Water Resources and Electric Power... in wandering reach of the lower Yellow River[M]. Beijing: China Water & Power Press, 2006: 1-30. [11] 陈建国, 胡春宏, 董占地, 等. 黄河下游河道平滩流量与造床流量的变化过程研究[J]. 泥沙研究, 2006(5): 10-16. CHEN Jianguo, HU Chunhong, DONG......
Experimental investigation of clam water impact on flatted-bottom seafloor mining toolHU Xiao-zhou(胡小舟)1, 2, LIU Shao-jun(刘少军)1, 2(1. School of Mechanical and Electrical Engineering, Central South..., China)Abstract:A test rig for constant velocity water entry experiments was developed that drives a flatted-bottom section attached on six degree of freedom(6-DOF) platform to enter the water vertically......
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J. Cent. South Univ. (2016) 23: 1611-1617 DOI: 10.1007/s11771-016-3215-9 Determination of gold nanoparticles in natural water using single particle-ICP-MS LONG Chen-lu(龙晨璐)1, YANG Zhao-guang(杨兆光)1... in ultrapure water (UP water) and 31 nm in 0.1 μg/L Au3+ solution. Stability of AuNPs in ultrapure water and natural water samples was investigated by detecting size variation of AuNPs. The result shows......
Water coning mechanism in Tarim fractured sandstone gas reservoirsSHEN Wei-jun(沈伟军)1, 2, LIU Xiao-hua(刘晓华)3, LI Xi-zhe(李熙喆)3, LU Jia-liang(陆家亮)3(1. Institute of Porous Flow and Fluid Mechanics..., Langfang 065007, China)Abstract:The problem of water coning into the Tarim fractured sandstone gas reservoirs becomes one of the major concerns in terms of productivity, increased operating costs......
. The paleo Pearl River delta near 13.8 Ma is a wave-influenced and asymmetric delta. Reservoir property in the western deep-water area is better than that in the eastern area. Resulting from the cold ancient..."源-汇"关系[J]. 中南大学学报(自然科学版), 2011, 42(12): 3827-3834. ZHU Yanhe, ZHU Weilin, XU Qiang, et al. Sedimentary response to shelf-edge delta and slope deep-water fan in 13.8 Ma of Miocene epoch in Pearl River......
