十堰市某拟建市政道路工程场地地震效应评价

Earthquake Effect Evaluation of a Municipal Road Engineering Site in Shiyan City

依据工程场地的地震安全性评价原则,对湖北十堰地区工程场地的地震动效应展开研究.首先,统计分析了十堰市地震情况,再对拟建工程区域稳定性、地震及勘探孔进行剪切波速测试,按照土层平均剪切波速的计算方法,对沿线各构造物分段按最不利条件进行计算,根据计算结果划分道路场地土类型和建筑场地类别.根据建筑场地抗震设防烈度,对拟建工程区域进行建筑抗震地段划分,最后得出地基土的地震液化及地震稳定性评价结果.

Based on the principles of seismic safety evaluation of the engineering site,this paper conducts a study on the ground motion effects of the engineering site in Shiyan,Hubei.The seismic situation of Shiyan City is statistically analyzed,the stability of the proposed project area,the shear wave velocity of earthquake and exploration holes are tested,and the engineering geological situation of the proposed area is analyzed.For the structures along the road line,the soil type of road site and the category of construction site shall be calculated according to the most unfavorable conditions.According to the seismic fortification intensity of the construction site,the seismic sections of the proposed project area are divided,and finally the seismic liquefaction and seismic stability evaluation of the foundation soil are obtained.