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多年来,湖南省第四建筑公司曾在52个工程(其中工业厂房、烟囱、锅炉房等20个,民用建筑宿舍、教学楼、商店等32个)中共使用了混凝土灌注桩约1.8万根,总进尺约11.3万m。摸索了在软弱地基上采用灌注桩的经验,现介绍如下。一、灌注桩用于湖南丘陵地区软弱地基的技术经济效果 1.灌注桩对一般粘性土、杂填土、淤泥、淤泥质土适应性强,不论在地下水位以上还是以下,或深浅不同的软土层,只要按土质情况区别操作,都可以整体成型,无需截桩、接桩。由于桩尖能深入到可液化层以
Over the years, the Fourth Construction Company of Hunan Province used a total of about 18,000 cast-in-place concrete piles in 52 projects (including 20 industrial plants, chimneys, and boiler houses, and 32 civil building dormitories, teaching buildings, and shops). The total footage is approximately 113,000 m. The experience of using cast-in-place piles on soft foundations is explored and is presented below. 1. The technical and economical effects of pouring piles for soft foundations in the hilly areas of Hunan. 1. The percolation piles have strong adaptability to general cohesive soils, miscellaneous fills, silts and silty soils, whether above or below the groundwater level, or different shades of softness. Soil layer, as long as the difference in the operation of soil conditions, can be formed as a whole, no need to cut piles, piles. As the tip can penetrate deeper into the liquefiable layer