高层建筑液化地基处理的研究

本文主要介绍拟建于严重液化场区内高层建筑地基处理的研究成果。研究表明:采用袋装砂井处理,能够收到防液化效果,但应注意时间效应;当地震烈度为7°时,对桩基础的高层建筑,只需利用沉桩作用,即可获得较好的抗震加固效果;若袋装砂井与沉桩共同作用进行处理,其抗震加固效果尤为理想,即使当地震烈度达到8°时,也不会产生液化现象。

TREATMENT OF LIQUEFACTIVE FOUNDATION FOR HIGH BUILDINGS

This paper mainly presents the achievement of foundation treatment for high buildings on a seriously liquefactive site. It shows that the disposing of sand wick can avoid liquefactive effect, but attention must be paid to time effect. For high buildings where pile foundations are adopted, the action of the sinking of the pile can be used to stabilize aseismatic strengthening, when the earthquake intensity reaches 7 If both sand wick and the sinking of the pile for the treatment of the foundation, the aseismatic strengthening will be more ideal. Even if the earthquake intensity reaches 8, the foundation will not come into liquefaction.