地基处理问题常见的都有哪些

2025-03-14 23:42:00
推荐回答(1个)
回答1:

地基处理的方法主要有:压实法、换土法、化学处理法、打桩法。
压实法:当土壤中水及空气含量过大时,土壤的承载力就低,且压缩变形量也大,含水量大、密实性差的地基土,可预先人工加压,排出一定量的空气和水,使土壤板结,提高地基土的承载力。这种方法不消耗建筑材料,较为经济,但作业效率低。
换土法:当地基的上表层部分为承载能力低的软弱土时,可将软弱土层全部挖走,换成坚硬土,这种方法处理的地基强度高,见效快,但成本较大。
化学处理法:对局部地基强度不足的在建建筑物或已建建筑物,可以采用注入化学物质,促使土壤板结,提高土壤承载力。
打桩法,是将钢筋混凝土桩打入或灌入土中,由桩和桩间土层一起组成复合地基,从而提高地基的承载力。
知识拓展:地基施工工序
基槽验收
桩基施工
桩基验收
基础垫层
基础防水
基础防水保护层
基础放线
基础筏板钢筋施工
基础地梁、后浇带模板施工
墙、柱插筋
检查验收
基础筏板、地梁砼施工。

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