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Research on the Treatment Standard for Highway Embankment Foundation

Author: ZuoQiang
Tutor: ZhiXiLan
School: Chang'an University
Course: Road and Railway Engineering
Keywords: Highway Roadbed Embankment Ground treatment Settlement standards Finite Element Foundation design Deformation modulus
CLC: U416.1
Type: Master's thesis
Year: 2011
Downloads: 36
Quote: 0
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Abstract


The strength and stability of the embankment of the highway , directly affect the strength of the pavement structure and driving comfort . For the embankment , the the roadbed overall mechanical properties not only fill part , to a great extent by the foundation below the base . However, since the field of China's highway no clear embankment foundation technical requirements , resulting in for subgrade foundation treatment exists great blindness , therefore , it is necessary to study the highway embankment foundation Treatment Standard , to guide the road of roadbed design and construction . Highway embankment foundation deformation analysis as the starting point , through field research, theoretical analysis , the use of finite element software and mathematical methods to carry out a systematic study of the highway embankment foundation Treatment standards , the highway foundation design principles and methods , and in engineering practice medium to be applied . Research foundation of highway embankment Treatment status quo , recognizing the urgency to solve the highway embankment foundation design methods and Treatment . Subgrade settlement mechanism and the factors affecting the subgrade settlement analysis , qualitative analysis of the impact of various factors on subgrade settlement . Road surface is absolutely settlement standards ; based to prevent pavement structure damage , road drainage and driving comfort requirements proposed road surface transverse differential settlement standards and road surface longitudinal differential settlement standards . Application of the finite element method to determine the the table absolute and posterior settlement, workers posterior table lateral differential settlement work posterior the table longitudinal differences settlement of foundation soil deformation modulus , the embankment height embankment resilient modulus embankment filling relationship between severe . Proposed critical foundation deformation modulus as the highway embankment foundation Treatment Standard control parameters , and based on this proposed the highway foundation design principles and methods , and to provide a basis for the design and construction of the highway foundation .

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CLC: > Transportation > Road transport > Road works > Roadbed, pavement engineering > Subgrade
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