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structure in underground rock engineering, and the stability of openings may affect the safe and efficient operation of the entire underground engineering system. With the deep expansion of underground engineering, the stress in the rock increases, and the dynamic disasters induced by underground engineering excavation frequently occur. Under the conditions of deep rock under a high stress......
of Heze Energy and Chemical Company Ltd, Yuncheng 274705, China) Abstract: In order to solve the problem in deep rock roadway and roadway with structural fracture zone, a new support form, i.e. U-type...% of that of U type steel arch frame. UCC arch centering can provide high support, guaranteeing the safety of supporting system effectively. Key words: deep rock roadway; U-type confined concrete; arch centering......
of saturated sandy soil [J]. Rock and Soil Mechanics, 2007, 28(3): 427-435. (in Chinese) [9] CARTER J P, BOOKER J R, WROTHU C P. A critical state soil model for cyclic loading [C]// PANDE G N, ZIENKIEWICS...J. Cent. South Univ. Technol. (2010) 17: 1376-1382 DOI: 10.1007/s11771-010-0645-7 Deduction and experimental investigation of constitutive relation of liquefaction of saturated sand WANG Xing-hua......
J. Cent. South Univ. (2017) 24: 168-177 DOI: 10.1007/s11771-017-3418-8 Rock strength interval analysis using theory of testing blind data and interval estimation TIAN Sen(田森)1, 2, 3, CHEN Jian-hong... Heidelberg 2017 Abstract: The concepts of rock strength intervals are presented in this work, furthermore, central values of intervals and their corresponding credibility are provided using two-case......
in surrounding rock, sonic wave measurement must be carried out for all measuring holes before blasting. It can confirm the damage degree and deep range caused by old blasting excavation, and provides...; Blasting cumulative damage effects of underground engineering rock mass based on sonic wave measurement YAN Chang-bin(闫长斌)1,2 (1. School of Resources......
-mechanical properties (PMP) of deep buried soft rock. And the 800 mm×800 mm×200 mm physical model (PM) was conducted, in which the endoscopic camera technique was adopted to track the entire process...Mechanical response features and failure process ofsoft surrounding rock around deeply buried three-centered arch tunnelZHAO Yu(赵瑜)1, 2, ZHANG Zhi-gang(张志刚)3, 4(1. Key Laboratory of New Technology......
is about 4 m. Increment of earth pressure is a fixed value when ground moisture is saturated, and the value is 0.57Pe. Key words: expansive soil; additional stress field; deep foundation pit; earth... Earth pressure of deep foundation pit effected by additional stress field of expansive soil CHAO Feng1, 2, WANG Mingnian1, 2, SHU Dongli1, 2, YU Li1, 2 (1. School of Civil Engineering, Southwest......
of mechanical rock drills, deep mining engineering, anti-explosion design of large span underground chamber and structure. Some domestic and foreign institutions, such as Los Alamos National Laboratory...J. Cent. South Univ. Technol. (2008) 15: 218-223 DOI: 10.1007/s11771-008-0042-7 Relationship between diameter of split Hopkinson pressure bar and minimum loading rate under rock failure LI Xi......
Impact of stretching-segment on saturated flow rate of signalized intersection using cellular automationLI Yan(李岩)1, CHEN Kuan-min(陈宽民)1, GUO Xiu-cheng(过秀成)2(1. School of Highway, Chang’an University, Xi’an 710064, China;2. School of Transportation, Southeast University, Nanjing 210096, China)Abstract:In order to analyze the impact of stretching-segment on the saturated flow rate of signalized......
are discussed based on the comparison of REEs of groundwater, average shale and aquifer rocks. It will provide additional information about the water-rock interactions in deep seated environment...J. Cent. South Univ. Technol. (2011) 18: 1646-1653 DOI: 10.1007/s11771-011-0884-2 Geochemistry of rare earth elements in groundwater from deep seated limestone aquifer in Renlou Coal Mine, Anhui......