摘要
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。
In this paper,foundation reinforcement models of dynamic compaction were introduced.It was assumed that there was a corres-ponding relation among foundation reinforcement area,ramming times and the simple tamping settlement.Foundation reinforcement formulas were improved and practical formulas of the effective reinforced depth and the foundation reinforcement area were got;though the project of improving the ground by dynamic compaction,three high energy levels dynamic compaction experiments(8 000,12 000,(15 000 kN·m)) were put into practice successfully,a relationship between dry density and the simple tamping settlement was established,and a comparative analysis of effective reinforced depth between calculation and detection was done,the foundation reinforcement area was compared between calculation and design,which verified the feasibility and practicability of the improved formulas.
出处
《工业建筑》
CSCD
北大核心
2010年第S1期736-740,共5页
Industrial Construction
关键词
加固模式
高能级强夯
有效加固深度
地基加固范围
reinforcement models
high energy level dynamic compaction
effective reinforced depth
foundation reinforcement area
