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前言近年,在推广深层搅拌法地基加固技术过程中多次遇到泥炭及泥炭质土地基加固问题,如昆明滇池沼泽相泥炭土地基、南京梅山冲沟沉积泥炭质土地基等。泥炭和泥炭质土含水量大、重度低、孔隙比大、有机质含量高、pH值低,以往在这类地基上建造3、4层房屋也要采用混凝土桩基础。根据对这些工程地基加固方案的对比分析,如采用高水泥掺量,被加固的泥炭土、泥炭质土能达到设计要求的加固土强度,则深层
Preface In recent years, in the promotion of deep mixing method foundation reinforcement technology in the process of mixing peat and peat soil reinforcement encountered many times, such as the Kunming Dianchi swamp phase peat soil foundation, Nanjing Meishan gully sedimentary peat soil foundation. Peat and peat soil with large water content, low severity, large void ratio, high organic matter content, low pH value, in the past in this type of foundation to build 3,4-story houses should also use concrete pile foundation. According to the comparison and analysis of these project foundation reinforcement schemes, such as using high cement content, reinforced peat soil, peat soil can meet the design requirements of reinforced soil strength, the deep