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http://dx.doi.org/10.7843/kgs.2009.25.1.21

Earth Pressure Equation Acting on the Cylindrical Diaphragm Wall in a Shaft  

Kong, Jin-Young (Dept. of Civil Engrg., Hanyang Univ.)
Shin, Young-Wan (Hakyong Engrg. Co., Ltd.)
Hwang, Yi-Sung (Dept. of Civil Engrg., Hanyang Univ.)
Chun, Byung-Sik (Dept. of Civil Engrg., Hanyang Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.25, no.1, 2009 , pp. 21-29 More about this Journal
Abstract
On plane strain condition, many researchers have investigated the earth pressure according to the shape of wall, and standardized method has been applied to the design of the retaining wall. But on cylindrical diaphragm wall, at-rest earth pressure has been generally used. Even though this method is on conservative side, it may lead to over-design. In this paper, the application of convergence confinement method to the calculation of the earth pressure acting on the cylindrical diaphragm wall of a shaft was suggested. In addition, a model test was carried out to investigate the distributions of earth pressure. Model test results show that the earth pressures of diaphragm wall are about 1.4 times larger than active earth pressure and about 0.8 times less than at-rest earth pressure.
Keywords
Convergence confinement method; Earth pressure equations; Diaphragm wall; Stress relief;
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