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Study on the Engineering Characteristics of Eolian Sand in Mu US Desert

Author: ZhangDeZuo
Tutor: PengJianBing；LiXiAn
School: Chang'an University
Course: Geotechnical Engineering
Keywords: Mu Us Desert Aeolian sand Compression characteristics Strength properties Engineering applications
CLC: X171
Type: Master's thesis
Year: 2009
Downloads: 146
Quote: 0
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Abstract


Depth implementation of the 21st century, China's western development strategy, further enhance the status of the national energy strategy, investment in the oil, natural gas and other energy base in western will further increase. Changqing gas field ever found in China's largest self-contained gas field, Changqing oil proven reserves of oil and gas production are ranked third in the China National Petroleum Corporation. Most of the Changqing gas field blocks located in the Mu Us Desert in south-central and the rolling development in recent years, continues to the north-central, and invested billions of dollars each year for construction projects. Department study of the physical and mechanical properties of the Mu Us Desert engineering and the formation of systems theory to guide the engineering practice, is of great significance. This paper joint Chang'an University, Xi'an Changqing Technology Engineering Co., Ltd. jointly conducted a large-scale research projects \To carry out a field survey and experimental basis, to ascertain the aeolian sand density and water content analysis and Mu Us Desert region of aeolian sand particle compositions and Regularity. X-ray diffraction and polarized light microscopy analysis, aeolian sand and chemical composition of its micro-structure characteristics. On this basis, the region of the Mu Us Desert aeolian sand heavy compaction test, summed aeolian sand compaction characteristics and mechanism. Unconfined compression test, to determine the nature of aeolian sand and low compression and non-saturated desert sand under static loading compression characteristics, and lay the foundation for experimental data analysis for the calculation of the desert bearing capacity of foundation and ground deformation. Research in the Mu Us Desert aeolian sand strength characteristics of the direct shear tests and triaxial shear test. In support of basic information on the Mu Us Desert region aeolian sand and engineering applications. Mortar test and mixed mortar orthogonal test study, initially identified the feasibility of aeolian sand as a fine aggregate of the mortar; foundation of aeolian sand sluicing the approach working conditions, summed up its regularity and the vibration compacting mechanism depth analysis; via the cushion ratio found by cushion ratio improved physical and mechanical properties of aeolian sand, can achieve the purpose of rational use of desert sand.

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CLC: > Environmental science, safety science > The basic theory for the Environment and Science > Environmental Biology > Ecosystems and pollution ecology
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