Title:
断層横断埋設管路の挙動推定方法及び断層横断埋設管路の挙動推定装置
Document Type and Number:
Japanese Patent JP6502803
Kind Code:
B2
Abstract:
A behavior estimation method includes a first step of calculating number of earthquake resistant joints required for absorbing a fault displacement amount in a pipe orthogonal direction, based on an allowable deflection angle and a pipe effective length, and calculating a deflection range in a pipe axis direction, a second step of calculating a load, received by the pipe due to relative displacement between the pipe and ground corresponding to a ground spring model in the pipe orthogonal direction defined with spring constants respectively for relative displacements smaller and larger than a predetermined relative displacement, a third step of calculating a bending moment distribution of joint positions from a bending moment of a trapezoidal distribution load, and obtaining a pipe deflection angle at each of the joint positions based on a predetermined joint deflection spring model, and a deflection performance evaluation step.
Inventors:
Masazo Kishi
Keita Oda
Keita Oda
Application Number:
JP2015177923A
Publication Date:
April 17, 2019
Filing Date:
September 09, 2015
Export Citation:
Assignee:
Kubota Corporation
International Classes:
G01L1/00; F16L1/024; F16L1/028
Domestic Patent References:
| JP7248100A | ||||
| JP2003177067A | ||||
| JP2005351429A |
Foreign References:
| US20110303012 |
Attorney, Agent or Firm:
Kaoru Hashimoto