... ABSTRACT: We propose a new synthetic finite element regression analysis for the determination of the geostress field in engineering construction areas. In this method, numerical simulation, regression analyses and a small number of actual measurement stress data are combined in a synthetic...

... Protection, Chengdu University of Technology, Chengdu, Sichuan, China G.S. Su College of Architecture and Civil Engineering, Guangxi University, Nanning, China T.B. Li & H.M. Ma College of Enviroment and Civil Engineering, Chengdu University of Technology, Chengdu, Sichuan, China ABSTRACT: The changes...

... of surrounding rocks. The method based on measurement of in-situ rock stresses and engineering information feedback, the stability of surrounding rocks is estimated in the engineering survey or preliminary design stage. All those may provide the basis data for the projects design and construction. 1...

... Characterization Engineering in-situ observation comparative analysis reservoir geomechanics numerical simulation coal seam mining-induced stress stress development peak value stress shell strata abutment pressure Rock Stress and Earthquakes Xie (ed.) © 2010 Taylor & Francis Group, London, ISBN...

...Rock Stress and Earthquakes Xie (ed.) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-60165-8 The in situ stress state of Kailuan mining area J. Han Kailuan Group Ltd., Tangshan, China College of Resource and Environment Engineering, Liaoning Technical University, Fuxin, China P.T. Zhang...

... the most direct and effective capacity to reduce the destructive damage, we shouldn't give up any chance to find out the rules of earthquake occurrence. Zhao Wenjin, a Chinese Academy of Engineering academician, said: ‘I think Mr. Li Siguang's earthquake geology – earth stress research is very promising...

... ( ): this function closes the Matlab and exits. 3 APPLICATION In-situ stress field is very important in the numeri- cal simulation and stability analysis as well as in the engineering design and construction. So it requests an effective analysis method. The method proposed in this paper combines the advantages...

... known that the original rock stress, rock initial stress and so on. It is the fundamental forces that caused by mining engineering, civil engineering, water conser- vancy and hydropower, and various other underground or open-pit rock and soil excavation deformation and destruction. To achieve...

...Rock Stress and Earthquakes Xie (ed.) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-60165-8 Measurements and research of in-situ stress near the fault structure filed C.H. Zhou, J.M. Yin & G.Q. Xiao Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water...

... ABSTRACT: Silt mudstone lied in deep field underground is the immediate roof of roadway and coal mining face, which mechanical properties may be important to corresponding engineering. By uniaxial mechanical test in laboratory for rock specimens, average instantaneous ultimate strength...

...Rock Stress and Earthquakes Xie (ed.) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-60165-8 A mechanism and characteristic analysis of rock core discing in the in-situ stress survey on deep coalmine Y.D. Jiang School of Mechanics and Civil Engineering, China University of Mining...

... of roadway severely. The article involved engineering geology, soft rock engineering mechanics and clay mineralogy etc, employed the ways of study on engineering geomechanics, laboratory testing on properties of rock mass, and combined with FDM 3D numerical simulation, and deeply researched the deformation...

... mine in Britain in 1738, rockburst has always been a big puzzle in mining development engineering. Because it occurs suddenly with characters of dynamic failure, rockburst often brings threat to the safety of constructors and equipments, causes destruction of engineering structures and affects...

... had been developed rapidly, such as water conservancy and hydropower engineering, railway engineering and highway engineering and so on. The tunnel has become an indispensable part of the basic projects. Tunnel is concealed in the mountain, so the engineering geology of underground surrounding rock...

... and the yield surfaces are depicted. Finally a simple mathematical yield criterion is developed. 1 INTRODUCTION Over the last few decades a significant amount of research has been conducted in rock engineering, including in the areas of rock mass and rock slopes. The main difficulty in regard to rock mass...

... strong rockburst happened in the drainage tunnel of Jinping II and caused 7 deaths and 1 wounded (Liu 2010). Upstream Oil & Gas brittle failure excavation renewable energy hydropower station situ stress Reservoir Characterization Engineering MPa rock mass principal stress brittle...

... source of rock failure in underground engineering. 1 INTRODUCTION In underground construction of large cavern or tunnel, determination of in-situ rock stress and failure of wall rock is very important, not only for prevention from potential failure, large deformation, and instability of caverns...

.... The main elements on roadway stability controlling were determined and the mechanism of the deformation and failure of the roadway was researched by means of comprehensive analysis on engineering geological and the results of in situ measurement of ground stress around the roadway, based on the result...

... deformation and failure of mining engineering. Correct information of in-situ stress state is necessary for reliable and safe mine construction and mining excavation (Cai M 2001, Kang et al. 2007). In every stage and every aspect of mining design and operation, information of in-situ stress state plays...

... ABSTRACT: There exist two types of finite deformation theorems in large deformation process of deep soft rock engineering, i.e. polar decomposition theorem and additive decomposition theorem. In this paper, referring to the functional expression between geostress and the depth proposed...