在地震区,场地移定性和场地土的抗震分类,对于工程的抗震设计是一个重要的问题,本文拟就此进行初步探讨。一、场地稳定性的划分从工程地质、地震地质的观点,可将场地稳定性分为三类:1.稳定的场地:为洪积冲积的低丘或平原,地势较为平坦,且无山洪、泥石流的威胁,在地震作用下不会发生山崩、滑坡、岸坡滑移等现象,岩溶土洞较少且不发生地震 In the seismic area, the site determinacy and seismic classification of the site soil are important issues for the seismic design of the project. This article intends to conduct a preliminary discussion on this. First, the division of site stability From the perspective of engineering geology, seismic geology, site stability can be divided into three categories: 1. Stable site: alluvial alluvial hills or plains, the terrain is relatively flat, and there is no torrent, The threat of mudslides will not cause landslides, landslides, bank slope slips and other phenomena under the action of earthquakes, and there will be fewer karst soil caves and no earthquakes.