摘要
随着我国沙漠地区公路建设的不断发展,经常会使用不同含泥量风积砂填筑路基。但是,不同含泥量的风积砂是否能用做公路地基填料?风积砂含泥量的多少对路基的影响如何?这都与不同含泥量风积砂的强度特性有关。为准确评价不同含泥量风积砂的强度特性,确定适合做公路路基填料的风积砂含泥量,本文结合实际工程,通过资料调研、工程实践、室内试验以及理论分析,对不同含泥量风积砂的强度特性(直剪试验、室内回弹模量试验、CBR试验)进行了试验研究,试验结果得出风积砂的含泥量在15%左右时,其强度特性好,适合做公路路基填料,这对沙漠地区的公路建设有一定的参考意义和经济价值。
With the development of China ＇ s highway structure in desert area, we often meet the problems of using different clay-content aeolian sand to build roadbed. However, if the different mud-content aeolian sand can be used as the stuffing of roadbed and what about the roadbed ＇ s effect？ They relate to the strength the different mud-content aeolian sand. In order to ascertain right the aeolian sand and estimate exactly the strength properties of the different studies the strength properties experiment experiment） of different mud-content aeolian （ direct-shear experiment, sad through datum research stuffing of roadbed of the and theory analysis, and combining the actual engineering. The experiment good, and is adapted to do the stuffing of roadbed when the mud-conten of properties of mud-content mud-content aeolian sand, this paper rebound modulus experiment, CBR project practice, laboratory experiment results show that strength properties is aeolian sand is about 15%, and these have instruction and ecnomic value to highway construction in desert area.
出处
《工程勘察》
CSCD
北大核心
2009年第4期10-14,共5页
Geotechnical Investigation & Surveying
关键词
含泥量
风积砂
强度特性
试验研究
clay-content
aeolian sand
strength properties
examination study
