天津地区岩土工程勘察中地震效应重点问题分析

Analysis on Key Problems in Evaluation of Site and Foundation Seismic Effect in Geotechnical Engineering Investigation in Tianjin Area

场地和地基的地震效应评价是岩土工程勘察的一项重要任务。结合天津地区工程地质条件和岩土工程勘察现状,对场地和地基的地震效应评价所涉及的抗震设防烈度的确定、场地类别的划分、抗震地段的划分、液化判别、软土震陷、场地稳定性和适宜性评价等重点问题进行了探讨。

Evaluation of site and foundation seismic effect plays a significant role in the geological engineering investiga- tion. Based on the engineering geological conditions and geotechnical engineering investigation situation in Tianjin, the key problems existing in the evaluation of site and foundation seismic effect are discussed, including the seismic fortification in- tensity determination, site classification, classification of seismic section, liquefaction estimation, soft soil subsidence, ground stability and suitability evaluation and so on, in order to give reference to geotechnical engineering industry.