doi:10.3850/9789810844554-0102 The Optimum Distance of Roof Umbrella Method for Soft Ground by Using PFCYusuke Doi1,a, Tatsuhiko Otani2 and Masato Shinji11Graduate School of Science and Engineering, Yamaguchi University, Yamaguchi, Japan.2Nishimatsu Construction CO., LTD., Tokyo, Japan. |