摘要
Abstract
In this paper,a numerical model for seismic analysis of integrated pipeline corridors under seismic loads is established by using finite element software.The effects of the number of cabins,soil properties,and soil cover thickness on the seismic mechanical response of large-span urban underground integrated pipeline corridors are analyzed.The results show that when the thickness of soil cover increases from 3mm and 5mm to 7mm,the peak stress of roof decreases by 9.5%and 12.7%,respectively.The reduction of peak stress of bottom plate was 5.4%and 10.7%,respectively.The peak stress reduction of the left wall was 25%and 31.2%,respectively.The peak stress reduction of the right wall was 9.1%and 18.2%,respectively.From silty soil to silty clay to sandy soil,the increase of peak stress of roof is 44.2%and 90.7%,respectively.The increase of peak stress of bottom plate is 51.4%and 131.4%respectively.The increase of peak stress on the left wall was 14.3%and 185.7%,respectively.The peak stress of the right wall increased by 100%and 340%,respectively.关键词
城市地下综合管廊/地震荷载/抗震性能/覆土厚度/土体性质Key words
Urban underground integrated pipe corridor/Earthquake load/Seismic performance/Thickness of soil cover/Soil property分类
建筑与水利
