地下管線耐震設計規範與數值分析方法之研究

A Study for Seismic Design Guidelines of Underground Pipelines and Numerical Analysis Methods

王佑豪(You-Hao Wang)

指導教授 ： 黃昭勳 ； 王仁佐

國立臺北科技大學/工程學院/土木與防災研究所/碩士(2011年)

https://doi.org/10.6841/NTUT.2011.00398

摘要

本文主要研究埋地管線通過斷層的數值模擬分析方法，以及研究美國維生管線聯盟(American Lifelines Alliance， ALA)、日本水道協會及中國大陸的油氣管線設計方法。研究內容可分成兩大部分，第一部分是探討各國規範對於埋地管線的評估項目如地震動、過斷層、液化等等，並針對地震動與過斷層進行研究。第二部分則是研究管體與土壤互制之數值模擬分析方法，以ASCE(1984)年所建議土彈簧模型，再以ABAQUS軟體建立數值分析模型和規範計算結果比對。由本研究第一部分可以瞭解，探討地震振動時埋地管線與圍束土壤之互制問題，除需要考慮地震波影響之外，尚需合併一起考慮管內溫度與壓力及地表垂直活載重與靜載重，對埋地管線所造成之應變量是否超過管線材料本身容許強度，作為判定埋地管線損傷與否之參考依據，並提出各國相關規範標準是否適用於台灣，以便後續研究之進行。而經由第二部份研究結果可以瞭解通過斷層埋地管線之大變形數值模擬分析方法，了解不同的參數(斷層與埋管之交角、埋地深度、土壤種類等)對埋地管線之影響，作為地震發生時埋地管線之損傷狀態以及埋設前之評估。

關鍵字

埋地管線 ； 斷層錯動 ； ABAQUS ； 土壤彈簧

並列摘要

This research studies the numerical simulation methods of the buried pipeline through the fault, and studies American Lifelines Alliance, Japan and China's pipeline design methods. It can be divided into two parts. First part is to study the national standard for assessment of underground pipeline projects such as ground shaking, fault, liquefaction, etc. The second part is to study the numerical simulation method of the buried pipeline through the fault. The numerical analysis software ABAQUS is adopted to simulate deformation of the buried pipeline through the fault. The numerical results and the results of the design methods are compared. By the first part of this study to understand, the vibration of the buried pipeline and the soil under seismic load is studied such as deformation and strain of the section of the pipe. In addition, the strain of the temperature and pressure of the pipe, surface live load and static vertical load of buried pipelines be considered. Their strength can not exceed the strength of the pipeline. In future, if these design methods is wish to use ones in Taiwan. They need to modify these design methods. The second part can understand the large deformation analysis method of the buried pipeline through the fault. In addition, considering the different parameters (the angle faults and buried, buried depth, soil types, etc.) in this study is studied.

並列關鍵字

Underground Pipelines ； Fault ； ABAQUS ； Soil Spring

參考文獻

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[29] 侯信宇，地下延性鑄鐵管通過斷層之接頭佈設研究，碩士論文，國立成功大學土木工程研究所，台南，2002。

[2] ASCE, 1984, ‘‘Guidelines for the Seismic Design of Oil and Gas Pipeline Systems, ’’ Committee on Gas and Liquid Fuel Lifelines.

[3] Dimitrios K. Karamitros, George D. Bouckovalas, George P. Kouretzis, 2007, “Stress analysis of buried steel pipelines at strike-slip fault crossings, ” Soil ynamics an Earthquake Engineering, Vol. 27, pp.200-211

[4] Do Huyng Lee, Byeong Hwa Kim, Hacksoo Lee, Jung Sik Kong, 2009, “Seismic behavior of a buried gas pipeline under earthquake wxcitations, ” Engineering Structures, Vol.31, pp.1011-1023