强夯地基施工怎么检验?

2025-04-07 03:52:33
推荐回答(1个)
回答1:

地基加固效果的检验是强夯地基施工一种非常重要的项目,地基检测是指施工完成后的地基进行质量检测和夯后地基的质量检验。常规检测方法有载荷试验、标准贯入试验、静力触探试验、动力触探试验、现场剪切试验、波速试验、土工试验等等。
载荷试验是指地基工程完成后对地基结构进行质量检测,主要目的是检测地基结构的承载力和变形模量。
标准贯入试验是指低饱和的粉土和粘性土等地基进行处理,将低饱和的粉土和粘性土等地基进行密实加固,检测地基的稳定性、密实度和变形参数,还可以与荷载试验相结合进行检验和判断地基的承载力并确定地基有效加固深度。
静力触探试验一般适用于碎石土、沙土、湿陷性黄土等地基。主要检查地基结构的比贯入度、锥尖阻力和孔隙水的压力。
动力触探试验适用于强化风硬质岩石、软质岩石、碎石土、沙土等土层地基,其主要检查沙土的孔隙比、密实度、强度与变形参数,采用场地的均匀性进行检测强夯地基的质量和地基的加固效果。
现场剪切试验是用于绘制应力的强度、位移、应变曲线。确定岩石的抗剪强度和弹性模量与泊松比等。
波速试验适用于确定与波速有关的岩土参数,如压缩波和剪切波的波速、剪切模量、弹性模量、泊松比等,用来检验岩土加固和改良的效果。
土工试验是测定土的基本工程特性,如土的密度、含水量、空隙比、比重、粒度、液性指数、透水性、压缩性、塑性指数、抗剪和抗压强度以及结固强度等等。

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