地下構造物(3)

[VI-179] A study of ground surface displacement prediction method for continuous element construction

〇FUMIYUKI MARUKO¹, SATOSHI HONAHONDADA¹, TAKAHITO OOTSUKA¹, TAKASHI NAKAYAMA², RYOU TAKIGAWA² (1.JReast, 2.Railway Technical Research Institute)

Keywords:Cross-line structure, Construction test, Numerical analysis

In the new work of the hakobody to be crossed directly below the line, in consideration of the influence on the ground equipment, there is a non-open construction method for constructing a box by inserting elements of the divided small cross section. In this study, we have developed a method for continuously inserting elements for the purpose of shortening construction period and reducing costs. From the measurement results obtained by the construction test of this method, we report the results of examining the analysis method for predicting the ground surface displacement.