The paper is made up of three aspects:1 , In this paper the disadvantages of calculation methods of large ground displacement are discussed, and the new method used to calculate the large ground displacement is presented.
本文主要做了以下工作： 1、本文总结了以往地面大位移计算方法的不足，提出了计算砂土液化诱发地面大位移的一种新方法。
参考来源 - 地震液化诱发地面大位移及其对桩基影响的研究Additionally the possible factors, which may influent the large ground displacement, are well studied. All of that provides theory foundation for studying buried pipeline's seismic damage due to large ground displacement.
接着对影响地面大位移的可能因素进行研究,为进一步研究地面大位移对地下管线的影响提供理论依据。
参考来源 - 地震液化引起地面大位移及其对地下管线影响的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The large ground displacement caused by seismic liquefaction is one of the main reasons which induce the failure of engineering structures.
地基液化条件下地面大变形是造成工程结构破坏的主要原因之一。
Liquefaction of sandy soil deposits is one of the most severe disasters during earthquake, and liquefaction-induced large ground displacement has more destroy.
砂土液化是地震引起的最显著的灾害形式之一，而由地震液化引起的地面大位移具有更大的破坏性。
Precipitation uplifts ground water level and weakens shearing strength of soil, thus results in large displacement in side direction.
大气降水抬升了地下水位，并削弱了土体的抗剪强度，从而使得土体的侧向位移迅速增大。
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