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A Mechanical Investigation on Altered Rocks in Tunnel Construction Kai Cui1, a, Zhong Cheng Ling1, b 1School of Civil Engineering Southwest Jiaotong University, Chengdu, China acuikai80@hotmail.com, b526255259@qq.com Keywords: Altered rocks, Mechanical properties, Physical tests, Mechanical tests Abstract.
Finally, it makes a brief summary about the major determinants of engineering properties of the alteration zone through an overall understanding of mechanical characteristics of the typical altered rocks.
Finally, more attentions are suggested on the engineering properties of altered sandstone which relates to establish the tunnel excavation and supporting program.
Fu, Analysis of slaking property and discussion of slaking on expansive soil, Soil Engineering and Foundation, 22 (2008) 66-68.
Guo, Engineering geological research on altered rocks in the area of NW Yunnan along Yunnan-Tibet Railway line, Chinese Journal of Geotechnical Engineering, 29 (2007), 531-536.

Finite element analysis for the Stress Field and Seepage Field interaction within Qingdao Submarine Tunnel Rockmass Cheng Li 1,a, Taiquan Zhou 1,b, Shasha Jiang 2,c, Jie Kong 1,d 1School of Environment and Civil Engineering, Jiangnan University, Wuxi Jiangsu 214122, China 2School of Materials Engineering, Yancheng Institute of Technology, Yancheng Jiangsu 224051, China a licheng0917@126.com;bzhoutaiquan@163.com; c jiangshasha0420@163.com; dkongjie_12@163.com Keywords: fluid solid coupling；submarine tunnel；rock mass stress field；seepage field；nonlinear finite element method；plastic region Abstract.
It is important to understand the further deterioration caused by the seepage in conditions of stability of surrounding rock as an engineering problem.
Mechanical effects of engineering measures in controlling the deformation in the surrounding rock of the tunnel.
[J].Chinese Journal of Geotechnical Engineering,Vol. 20 (1998), p. 27-33 [4] Xuefu Yu, Yingren Zhen.
Surrounding Rock Mass in Underground Engineering [M].

The calculation analysis of supporting structure with no-load CFG composite foundation Lianxiang LI1,2,a, Xuebo Hu1,2,b, Xixiang Dong3,c, Guanglei Hu4,d 1School Of Civil Engineering Shandong University, Jinan 250061, China; 2Foundation Pit and Deep Foundation Engineering Research Center, Shandong University, Jinan 250061, China; 3Jinan West Investment and Development Group Co., Ltd. , Jinan 250300, China; 4Jinan Institute of Investigation and Surveying, Jinan 250013, China a lilianxiang@sdu.edu.cn, bhuxuebopy@126.com, cdongxx@163.com, d 375101384 @qq.com Keywords: CFG composite foundation; supporting structure, composite soil, calculation analysis.
Engineering background General situation of stage bin Jinan Cultural＆Art Center(the Grand Theater) is the main venue of the 10th Chinese Culture and Art Culture Festival.
It is not scientific, reasonable, and causes quite a waste of retaining structure that similar practical engineering regards CFG composite foundation as undisturbed soil to design the supporting structure and ignores the reinforcement effect of CFG pile on soil.
Therefore it is worthy of attention and further strengthen study of the theorists, while more in need of engineering seriously.
Chinese Journal of Geotechnical Engineering，2012，34（supp）：500-506.

At present, docks, airport runways, collecting tanks, and other kinds of civil and military infrastructures are constructed on coral reefs because of necessity, as well as for protection and the development of marine resources.
Understanding the explosion compression wave propagation and attenuation can provide basic information for engineering constructions.
Engineering Geological Properties of Coral Reefs on Nansha Islands[M].
Chinese Journal of Geotechnical Engineering, 2002, 24(6): 723－729
Engineering Blasting, 2006,12(3):14-17

EXPERIMENTAL STUDY ON SHEAR STRENGTH CHARACTERISTICS AND STRESS-STRAIN RELATIONSHIP OF LOESS Bo Han 1, a, Hong-jian Liao 1,b, Hangzhou Li1, cand Zhenghua Xiao 2,d 1 Department of Civil Engineering Xi’an Jiaotong University, XI’AN , SHANNXI 710049,CHINA 2 Collegd of Architectural Engineering, Xinjiang University, URUMQI, XINJIANG 830008,CHINA a han_bo961@163.com, b hjliao@mail.xjtu.edu.cn, c lihangzhou77@163.com (corresponding author), d xzh-70@163.com Keywords: Loess, Stress-strain relationship, Triaxial shear test, Strength Characteristics.
In practical engineering, we are often faced with various problems of loess.
Especially, the strength and deformation of loess are important designed and calculated parameters in loess foundation engineering and slope engineering.
References [1] Zhou Xiaoyan, Luo Yasheng, Influence of stress path on the mechanical characteristics of saturated loess in drained test, Chinese Journal of Underground Space and Engineering. 3(2007) 1064-1068
[6] Song Zhang, Cheng Qiangong, Zhang Wei, etc., Analysis of structural strength and deformation properties of intact Loess Journal of Railway Engineering Society. 3(2007) 6-12

Bearing behavior study of rammed cement-soil pile compounded foundation in collapsible loess Yuehui LI 1,a, Xiaojuan GAO 1,b 1Institute of Civil Engineering, Henan University of Science and Technology, Luoyang, China 471023 alylyh66@163.com,bgaoxjly@163.com Keywords: Rammed cement-soil pile,compounded foundation, bearing behavior, collapsible loess Abstract: The rammed cement-soil pile compounded foundation is widely used in collapsible loess of northwest China.
This lead to many bearing capacity of compounded foundation cann’t meet the engineering requirement.
Considering engineering characteristic of construction site soil and cost of building, the rammed cement-soil pile compounded foundation was selected.
This phenomenon is often appear in practical engineering.
References [1]Bo Yuan, Jiu Feng, Liangming Xu.Railway Engineering,2010,9:69-72(in Chinese) [2]Jianping Wang, Chengyan Luo.

Feasibility of Vs Liquefication Evaluation Methods by Bachu Xinjiang Earthquake Data Qianyu Zhao1,a, Rui Sun1,b, Yurun Li2,3,c and Weiming Wang1,d 1Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, CEA, Harbin 150080, China 2College of Civil Engineering, Hebei University of Technology, Tianjin 300401, China 3Civil Engineering Technology Research Center of Hebei Province, Tianjin, 300401, China azhaoqianyu_2006@yahoo.com.cn, biemsr@163.com, ciemlyr7888@163.com, dwswwm1983@163.com Keywords: shear Wave Velocity (Vs), soil liquefaction, probability analysis, discrimination model.
Journal of Harbin University of Architecture and Engineering, 1 (1996) 97-103
Word Earthquake Engineering, 1991
Institute of Engineering Mechanics China Earthquake Administration, 2006
Chinese Journal of Rock Mechanics and Engineering, 5 (2010) 943-951.

Effect of Slate Powder on Alkali Activity of Slate Aggregate Xianxiao Peng1, a, Guhua Li1, Wu Huang2, Fuhai Li1, Xiaochun He2 1School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China 2China Railway No.5 Engineering Group Co. , Ltd. , Guiyang 550003, China apengxianxiao@163.com Keywords: slate aggregate; alkali-silica reaction (ASR); slate powder; unfavorable particle size Abstract.
The method refers to the accelerated mortar bar test in the “Standard for Constructional Quality Acceptance of Railway Concrete Engineering” of China TB10424-2010 [11].
[8] Beijing Tieke Engineering Test Center: Test report for concrete aggregate (sand) C-2012-0038 (2012) In Chinese
[10] Beijing Tieke Engineering Test Center: Test report for concrete aggregate (stone) C-2012-0040 (2012) In Chinese
[11] Standard for Constructional Quality Acceptance of Railway Concrete Engineering TB 10424-2010, China Railway Publishing House (2010) In Chinese

These issues could be alleviated by the introduction of surgical simulation in a manner similar to that used in the training of pilots in civil aviation.
The BE system was developed as an implementation in Fortran centred around an existing and robust BE engineering code [16].
Acknowledgements The work outlined in this paper was undertaken with the support of the Engineering and Physical Sciences Research Council (EPSRC) via grants GR/R84030/01 and EP/D503256/1.
Mota Soares, Civil-Comp Press, Stirling, paper 100, 2004
The boundary element method in engineering, McGraw-Hill, London, 1992

Based on the engineering background of a three-span reinforced concrete rib arch bridge, a full bridge finite element model is built to analyze the structural dynamic characteristic and seismic response of the bridge.
The spectrum curve is represented by dynamic coefficient in Specifications of Earthquake Resistant Design Code for Highway Engineering [2].
According to the geological conditions of bridge site and the provisions of Specifications of Earthquake Resistant Design Code for Highway Engineering, the horizontal acceleration response spectrum is determined and shown in Fig.4.
References [1] JTG/T B02-01-2008: Guidelines for Seismic Design of Highway Bridges, (China Communications Press, Beijing 2008) [2] JTJ 004-89: Specifications of Earthquake Resistant Design Code for Highway Engineering, (China Communications Press, Being 1989) [3] Lichu Fan, Shide Hu and Aijun Ye: Seismic Design of Long Span Bridges, (China Communications Press, Beijing 2001) [4] Dalin Hu and Xiaoguo Huang: JOURNAL OF ARCHITECTURE AND CIVIL ENGINEERING, Vol 25, No 2(2008), p79-84