2014 Vol. 20, No. 2

  Previous Issue | Next Issue 
Display Method:
PAN-AFRICAN CENTRAL AFRICAN FOLD BELT, WITH EMPHASIS ON BEDROCKS AND HEAVY MINERAL ANALYSIS OF RIVER ALLUVIUM IN THE NORTHERN CAMEROON
YE Hao, , ZHAO Yue, LIU Jian
2014, 20(2): 103-113.
Abstract (512) HTML (442) PDF (10400KB)(24)
Abstract:
The assembly of Gondwanaland and Pan-African orogeny were briefly presented. Then, the lithological units and their tectonic settings in the northern Cameroon and southwestern Chad were dissected based on previous research. On this basis, heavy mineral analysis was carried out for river alluvium col...
RESEARCH ON CLASSIFICATION OF WATER-SOLUBLE GAS IN WEIHE BASIN
ZHANG Xue, LIU Jian-chao, LI Rong-xi, WANG Xing-yun, WENG Kai
2014, 20(2): 114-122.
Abstract (199) HTML (128) PDF (1308KB)(15)
Abstract:
The reserve of water-soluble gas is rich but the composition and origin is complex in Weihe basin. In order to guide the comprehensive utilization and development in the further, it is necessary for researching the characteristics of water-soluble gas in this area and presenting an appropriate class...
ROCK COLLAPSE MECHANISM ON HIGH-STEEP SLOPE FAILURE IN SUB-HORIZONTAL THICK-BEDDED MOUNTAINS
FENG Zhen, LI Bin, HE Kai
2014, 20(2): 123-131.
Abstract (269) HTML (121) PDF (3146KB)(23)
Abstract:
Sub-horizontal thick bedding slope shows a gentle dip of approximately 0~10°and strata structure of hard on soft, or hard interbedded with soft. It forms a high and steep terrain and is prone to rock collapse. Reviewing a lot of references, failure process and initiation mechanism, as well as failur...
DEVELOPMENT CHARACTERISTICS AND PREVENTION SUGGESTIONS OF THE LEPA DEBRIS FLOW IN THE ANNING RIVER FAULT ZONE
ZHANG Rui-duan, GUO Chang-bao, ZHANG Yong-shuang, FU Xiao-xiao
2014, 20(2): 132-139.
Abstract (289) HTML (116) PDF (3645KB)(13)
Abstract:
The paper gives careful calculations of the maximum debris flow in the Lepa gully in June 17th, 2011, the extraordinarily serious debris flow calamities in the last fifty years. By calculation, the mean velocity of the debris flow was 2.03 m/s with a peak discharge of 200.11 m3/s. The unstable slope...
COMPUTATION COMPARISON BETWEEN THE EARTHQUAKE FORCE OF SAFETY RELATED SLOPE AND THAT OF COMMON SLOPE
CHEN Li-wei
2014, 20(2): 140-148.
Abstract (258) HTML (135) PDF (912KB)(18)
Abstract:
On the basis of theoretic model and deduced formulas, the earthquake forces difference between the safety related slope and that of common slope were compared, and some deficiencies of the specification on the earthquake force computation in the current standard for seismic design of nuclear power p...
ANALYSIS OF INFLUENCING FACTORS FOR GROUND STRESS IN CHANNEL SANDSTONE
ZU Ke-wei, ZENG Lian-bo, LIU Xi-zhong, ZHANG Jun-hui, ZHAO Xiang-yuan, LIU Guo-ping
2014, 20(2): 149-158.
Abstract (266) HTML (105) PDF (3152KB)(18)
Abstract:
With the further geological exploration, it is showed that different values and directions of in-situ stress are appeared in the adjacent sedimentary facies by a mass of production test data. By changing different boundary conditions(including the elasticity modulus and Poisson's ratio of channel an...
AUTOMATIC FINITE STRAIN DETERMINATION OF QUARTZ SANDSTONE IN WEAK STRUCTURAL DEFORMATION REGION
CUI Min, CAI Jia
2014, 20(2): 159-164.
Abstract (203) HTML (106) PDF (2475KB)(10)
Abstract:
Finite strain determination is an important research for deformation characteristics of rocks. In order to improve the precision and the velocity, and ameliorate the status which is laborious and time consuming methods availability for manual finite strain determination, we take automatic method of ...
ON THE ENVIRONMENTAL CHANGES SINCE 15 ka BP IN THE ORDOS PLATEAU
JIANG Fu-chu, WANG Shu-bing, FU Jian-li, LI Chao-zhu, Cai Yao
2014, 20(2): 165-173.
Abstract (249) HTML (143) PDF (1005KB)(13)
Abstract:
In this paper, the climatic and environmental evolution since past nearly 15 kaBP were revealed by the comprehensive analysis of grain size, magnetic susceptibility and chrominance from lacustrine deposits in the Shejialiang Lake Area, central Ordos Plateau. It's revealed that during 14.3~11.9 kaBP,...
THE FEATURES AND AGES OF LAKE BEACH ROCK AROUND SAYRAM LAKE IN WESTERN TIAN SHAN AND ITS SIGNIFICANCE ON LAKE LEVEL FLUCTUATION DURING THE LAST INTERGLACIAL EPOCH MIS3
CHEN Ming-yong, XU Sheng-li, WU Zhong-hai, LI Yue-hua, ZHAO Xi-tao, ZHANG Ke-qi, MA Zhi-bang, MA Dan, TIAN Ting-ting
2014, 20(2): 174-184.
Abstract (256) HTML (341) PDF (8622KB)(11)
Abstract:
Lake beach rock is one of the products which can reflect the land and sea interactions, of great significance for studying the ancient lake level fluctuations, lakeshore zone evolution and paleoclimatic change. On the basis of Quaternary geological survey and 1 :50000 scale geological mapping for Sa...
DEVELOPMENT SITUATION IN GEOMECHANICAL FIELD IN RECENT YEARS AND THE RELATED COUNTERMEASURE ANALYSIS
FENG Hui, ZHANG Xue-ke, SONG Li-cai, WU Zhong-hai
2014, 20(2): 185-198.
Abstract (304) HTML (240) PDF (2976KB)(14)
Abstract:
Geomechanics theory is a systematic earth science theory system. For more than fifty years, both talent team and discipline of geomechanics have been growing and perfecting, great achievements famous at home and abroad have been made in each field, making great contribution to Chinese economic and s...
ACHIEVEMENTS OF NATIONAL SURVEY OF MINERAL RESOURCES AND ITS APPLICATION
ZHANG Qi, WANG Gao-shang
2014, 20(2): 199-204.
Abstract (170) HTML (77) PDF (828KB)(4)
Abstract:
The paper outlines the objectives and tasks of the reserves survey, and summarizes the main achievements obtained from projects. The application of the survey results to strengthen the mineral resources management, promote economic and social development, and ensure resource security and so on is st...

Website Copyright © Journal of Geomechanics  京ICP备18031784号  Total visits：6194475

Supported by: Beijing Renhe Information Technology Co., Ltd.