通州湾新区工程地质特征及地基预处理技术研究

发布时间：2018-03-21 14:09

本文选题：岩土工程　切入点：地质特征　出处：《重庆交通大学学报(自然科学版)》2017年12期 　论文类型：期刊论文

【摘要】：对通州湾新区区域环境地质背景进行了阐述;整理、归纳、分析了区内正在开发建设的科教城A03、A04、B01、B03地块及春晖路等区域的地勘资料;依托典型工程案例,针对适宜于新区的多项地基预处理技术进行了对比分析。研究表明:新区地质土层为韵律型砂层与黏土层交替出现的双层松散型地质,既有区域环境地质特征,又有其局部特殊性。过高的地下水位、连续的降雨是新区水文地质的又一特点,给地基施工和降水带来了较大的困难。新型降水强夯法、排水固结法是完成新区大面积地基预处理较为适宜的方法。合理的选择复合地基法亦可以将地基预处理与处理合二为一,大大缩短整个工程的工期、节省造价。
[Abstract]:This paper expounds the regional environmental geological background of Tongzhou Bay New area, arranges, sums up and analyzes the geological prospecting data of the scientific and educational city A03, A04, B01, B03 and Chunhui Road, which are being developed and constructed in this area, and relies on typical engineering cases. In this paper, several foundation pretreatment techniques suitable for the new area are compared and analyzed. The results show that the geological layer of the new area is a double layer loose geology with rhythmic sand and clay layers alternately, which has the regional environmental geological characteristics. High groundwater level and continuous rainfall are another characteristic of hydrogeology in the new area, which bring great difficulties to foundation construction and dewatering. The drainage consolidation method is a more suitable method to complete the pretreatment of large area foundation in the new area, and the reasonable choice of composite foundation method can combine the pretreatment of foundation with the treatment of foundation, which greatly shortens the construction period of the whole project and saves the cost.
【作者单位】：南通沿海开发集团有限公司;南京瑞迪建设科技有限公司;南京水利科学研究院;
【基金】：水利部行业公益性项目(1261430210302)
【分类号】：U655.54

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