摘要
为了能够有效地减少水泥搅拌桩制桩过程中的黏附和阻塞,通过直剪试验研究金属刀具切削黏土时黏粒含量对界面抗剪强度的影响。其试验结果如下:在黏土含水率30%、干密度1.5g/cm3的情况下,随着黏粒含量的增加,界面抗剪强度单调增加;内摩擦角变化相差不大,黏聚力单调增大。
In order to reduce adhesion and blocking of cement mixing piles effectively,it studies the the impact of the content of clay to the interface shear strength in the metal tool cutting clay process and direct shear test.The conclusion shows when the moisture content is 30% and the dry density is 1. 5g / cm3,with the increase of the content of clay,the interface anti- shear strength is increasing monotonously as increasing cohesion monotonously and the friction angle is almost unchanged.
出处
《机械设计与制造工程》
2015年第9期74-77,共4页
Machine Design and Manufacturing Engineering
基金
中央高校基本科研业务经费资助项目(26120132013B10314)
关键词
黏粒含量
切削
抗剪强度
黏附
直剪试验
水泥搅拌桩
content of clay
cutting
anti-shear strength
adhesion
direct shear test
cement mixing pile
