冲击碾压冲击能量及有效加固深度分析  

Analysis on impact energy and effective reinforced depth of impact roller compaction

作　　者：叶观宝[1] 刘青[1] 陈忠清[1] 强海飞[2] 陆胜 

机构地区：[1]同济大学岩土及地下工程教育部重点实验室,上海200092 [2]中国极地研究中心,上海200136 [3]淮安市机场建设办公室,江苏淮安223000

出　　处：《工程勘察》2014年第3期16-19,共4页Geotechnical Investigation & Surveying

基　　金：江苏省交通科学研究计划项目(No.09Y03);上海市重点学科建设项目(No.B308)资助

摘　　要：文章在已有的计算分析方法上，通过类比强夯法，从能量转化的角度，提出了计算冲击碾压能量和评价有效加固深度的理论公式。通过分析文献中的工程实例，采用文章提出的理论公式计算出砂性土、粘性土和湿陷性黄土的有效加固深度修正系数值，并结合工程实际，给出合理的建议值，其中砂性土为1．3～1．6、黏性土为0．8～1．0、湿陷性黄土为0．6～0．8。文章为冲击碾压法的有效加固深度研究提供了一个思路，希望其中的部分参数能够通过工程实践、试验或数值模拟的方法得到进一步的检验和验证。Based on the existing calculation and analysis methods, through the analogy dynamic compaction method, the new formulas to evaluate the impact energy and effective reinforced depth are suggested from the energy conversion terms. Through analyzing engineering projects and using the suggested formulas, the correction coefficient values on effective reinforced depth of sand, clay soil and collapsed loess are calculated, and the reasonable values are suggested considering with field situation. The correction coefficient values of the sand are from 1.3 to 1.6, the values of the clay soil are from 0.8 to 1.0, and the values of the collapsed loess are from 0.6 to 0.8. The study provides the way for the analysis on the effective reinforced depth of. the impact roller compaction, and some parameters are wished to be verified in the advanced study and engineering practice.

关 键 词：地基处理 冲击碾压 冲击能量 有效加固深度 

分 类 号：TU443[建筑科学—岩土工程]