贝壳砾砂在大型地基工程中的密实处理

作者：李位星 曾文锋

单位：中国海洋石油南海西部公司 中国海洋石油南海西部公司 广东湛江524057  广东湛江524057

关键词：贝壳砾砂  振冲  强夯  密实效果检测

分类号：TU472

出版年,卷(期):页码：2005,29(3):49-52

摘要：

贝壳砾砂是我国沿海丰富的自然资源,对其在大型地基工程中的应用并同时采用振冲法和强夯法密实处理,在国内尚属首例。文章主要介绍贝壳砾砂在本工程中的运用,并采用75kW、100kW振冲器挤密处理和采取2000kN·m、3000kN·m夯能强夯挤密处理的施工方法及密实效果检测等情况进行综述。

Crushed shells and gravelly sand are ample natural resources along China's coast.It is a first case in China that the crushed shells and gravelly sand were used in large foundation works and were densified and compacted simultaneously with the vibroflotation methos and the dynamic compaction method.The paper presents mainly the use of crushed shells and gravelly sand on this project and the construction methods by which the crushed shells and gravelly sand were compacted with 75 kW and 100 kW vibroflots and dynamic compactors with tamping energies of 2 000 kN·m and 3 000 kN·m as well as an overview of the measured result.

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