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一、地基处理发展概况长治地区采用复合地基,是从90年开始,当时采用锤击式二灰桩,处理人工填土,软塑粉质粘土。九七年西大街、梅辉坡、炉坊巷、杨家巷、东营等小区,拆除旧房进行旧城改造,地基土多为杂填土,地基处理大部采用震动式挤密碎石桩,处理效果较好。九八年以来水泥粉喷桩,以其对环境污染小(灰尘、噪音),被用户采用,逐渐占领市场。以上为长治地区历年采用主要桩型。除此以外如灰土桩、CFG 桩、人工挖井短桩等也有应用。
First, the development of foundation treatment The Changzhi area uses a composite foundation, starting from 90 years, when the use of hammered ash piles, handling artificial fill, soft plastic silty clay. In 1997, West Street, Meihuipo, Hearth Alley, Yangjiaxiang, Dongying and other districts were demolished for the transformation of the old city. The ground soil was mostly filled with miscellaneous soil. Most of the foundation treatment used vibration-type compacted stone columns. The treatment effect is better. Since cement powder jet piles have been used since 1998, they have been used by users for their environmental pollution (dust, noise) and have gradually occupied the market. The above is the main pile type used in the Changzhi area over the years. In addition to this, there are applications such as lime soil piles, CFG piles, artificial excavation short piles and so on.