湿陷性黄土地基强夯加固模式及加固范围研究

• 作 者: 郭伟 汤克胜
• 机 构: 上海港湾工程质量检测有限公司,青岛港(集团)港安建设有限公司,
• 出 处: 工业建筑
• 发表日期: 2010年S1期
• 关键词: 强夯加固 有效加固深度 湿陷性黄土地基 加固土 强夯处理 高能级强夯 加固模式 夯击次数 地基加固 强夯地基

介绍强夯加固地基的模式。假设地基加固区体积与夯击次数及单击夯沉量之间存在一定的对应关系,对前人的强夯加固模式公式进行改进,得到实用的强夯有效加固深度与加固范围的公式;通过8 000,12 000,15 000 kN.m三个高能级强夯处理湿陷性黄土地基实例,建立干密度和单击夯沉量之间的对应关系,计算得到的有效加固深度与检测结果相对比分析,计算的加固范围与设计值进行比较,验证改进后公式的可行性与实用性。

Introducing the mode of dynamic compaction and reinforcement foundation. It is assumed that there is a certain correspondence between the volume of foundation reinforcement zone and the number of tamping and the per unit area of ​​percussive settlement, and the formula of dynamic tamper reinforcement mode is improved to obtain the practical formula of effective tightening depth and reinforcement range. 8 000,12 000,15 000 kN.m three high-energy dynamic compaction collapsible loess foundation example, the establishment of dry density and click the amount of percussion settlement between the corresponding effective reinforcement depth calculated with the test results Compared with the analysis and calculation of the reinforcement range and the design value, the feasibility and practicability of the improved formula are verified.