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di xia dong shi de mai zhi shen du he dong xing she ji you hua
Pages: 19-22+26
Year: Issue:  3
Journal: Geotechnical Investigation & Surveying

Keyword:  underground cavity\ embedded depth\ optimum design;
Abstract: Take the displacement deviation of controlled points around the cavity as objective function of optimum design and separate the goemetric parameters surrounding the cavity into shape variables and area variables and take the shape variables as design variables and fulfill the design constraints with area variables, calculation is conducted herein with the above mentioned optimum method. The general law of variation on optimum section of underground cavity shape under the condition of different embedded depth is discussed.
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