松辽平原某大型抽水站新站址砂土震动液化可能性分析及其对策

摘要

通过哈达山水利枢纽工程、月亮泡蓄滞洪区工程、引嫩入白工程、前郭灌区改善配套工程、松原灌区及大安灌区的工程勘察,对松辽平原的砂土液化有了一些认识。本文仅以介绍前郭灌区第二灌区锡泊屯新站址的地层结构与砂土的一般性质,对砂土液化可能性进行了评价,并提出砂土振动液化的防治对策。结合本国在处理砂土液化地基中的一些经验,探讨新站址地基砂土振动液化的方法。%The first hand experiences had been gained to understand the sand liquefaction in Songliao Plain,through the engineering investigation of Hadashan Hydro Project,Yueliangpao storage flood project,water supply project transfering water from Nen River to Baishan City,the improved and modified project in Qianguo irrigation district,Songyuan and Da＇an irrigation zone.This paper only describes the stratum structure and the general nature of sand in Xibotun new site of the second irrigation district in Qianguo area.It evaluated the feasibility of sand liquefaction,and put forward the countermeasures against them.It explored new method to control sand vibration liquefaction for new site according to the experiences of dealing with sand vibration liquefaction foundation in China.