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Preliminary Research on the Standardization of Highway Mountain Tunnels

Author: WangXiaoDong
Tutor: SuShengRui
School: Chang'an University
Course: Geological Engineering
Keywords: Standardization of mountain tunnel Separate mountain tunnel Finite Element Monitoring and Measurement
CLC: U459.2
Type: Master's thesis
Year: 2009
Downloads: 95
Quote: 1
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Abstract


With the rapid growth of the national economy , the deepening of the western development , vigorously develop China 's western region of the transportation business to become an important national policy of nation building . The more mountainous western area with complex terrain , mountain tunnel construction is essential . Highway mountain tunnel design and construction is more economical , safe , reasonable , highway mountain tunnel standardized become inevitable . Although our current set of highway tunnel design and construction standards , but the construction of mountain tunnels in many ways still do not achieve standardization , or low degree of standardization . In this paper, the standardization of the highway mountain tunnel study . First collected and summarized information highway tunnel design and construction standards and specifications , data finishing stages using the more highway tunnel cross-sectional design calculation program and theory of tunnel surrounding rock pressure and classification of rock ; then Marc finite element software for different surrounding rock level , different inner contour tunnel , buried deep the highway tunnel structure stress, strain and displacement to simulate depth highway mountain tunnel surrounding rock classification standards and highway mountain tunnel cross-sectional design standards Erenhot to estuaries Mengzi to new Street Expressway Lushuihe tunnel design and construction , and monitoring of the study ; Finally , from the collection of many of Yunnan Province, the tunnel design and construction information , sorting out the national trunk road (GZ40) as the primary measurement instance , the finite element simulation results comparison and research . In this paper, draw some useful conclusions , systematic study of standards surrounding rock classification system , forming a tunnel surrounding rock category tunnel model of the finite element simulation of surrounding rock stress . The model shows a highway mountain tunnel in different surrounding rocks under stress and strain of the situation . Tunnel cross section whether analog invert draw foundation bearing capacity and looser surrounding rock should be used to invert the cross-sectional design conclusions . Finally, the relative ratio of the actual monitoring results with the simulation results , verify the accuracy of the model of the standard highway mountain tunnel surrounding rock .

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CLC: > Transportation > Road transport > Tunnel project > A variety of tunnel > Highway tunnel
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