厦门本岛轨道交通线路地震断层破坏效应评判

Seismic Fault Destruction Effect Evaluation on Xiamen Island Rail-transit Line

厦门市位于华南沿海地震带内,其附近发育有北东向长乐―诏安断裂带和近东西向南靖―厦门断裂带等区域性大断裂,断裂构造较为复杂。规划的厦门轨道交通一号线路在厦门岛内经过北东向文灶-五通断裂带、钟宅-狐尾山断裂带和北西向濠头-塔头断裂,可能会对线路工程安全造成潜在威胁。因此依据建筑抗震设计规范有关规定,本文对这些断裂所产生的工程影响进行地震断层破坏效应评判,得出可不考虑断裂对线路的位错影响。

Xiamen is located in the South China coastal seismic zone within the vicinity of the development of NE trending Changle -- Zhao＇an fault zone and nearly east--westward Nanjing -- Xiamen fault zone and other regional faults. The faults are more complex. The planning of Xiamen rail--transit first line in Xiamen island passed through the NE to Wenzao -- Wutong fault, Zhongzhai -- Huwei Mountain fault and the NE to Haotou -- Tatou fault. These faults may cause potential threat to line engineering security. There- fore, in accordance with the relevant provisions of the code for seismic design of buildings, the paper evaluated these faults generated effect on the project by seismic fault damage effect and obtained that it was unnecessary to consider the effect of the faults on the dislocation of the line.