干旱区生态环境知识资源中心(Arid): 极度干旱区板块状盐渍土路用性能试验

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	极度干旱区板块状盐渍土路用性能试验
其他题名	Road performance test of plate-like saline soil in extremely arid regions
	乌延玲 1; 冯忠居 1; 王廷武 2; 刘小飞 3
来源期刊	长安大学学报. 自然科学版
ISSN	1671-8879
出版年	2011
卷号	31 期号:1 页码:31-35
中文摘要	为解决新疆红鄯(红山口--鄯善)高速公路沿线板块状盐渍土用于工程建设的问题,基于渗透试验,无侧限抗压强度试验,CBR试验和承载力试验,研究了板块状盐渍土的路用性能.结果发现:板块状盐渍土的天然抗压强度受含盐量分布不均匀,土样级配不同和试件尺寸效应等因素的影响,其值为2.8~28.6 Pa,相差极大;板块状盐渍土的CBR值高达120%,远大于非板块状盐渍土的CBR值(28.6%),其弯沉值远小于设计弯沉值.这些结果说明,在工程实际中控制水的浸入,就可以充分利用板块状盐渍土作为路基的地基;结合渗透性试验成果和新疆红鄯高速公路周边环境的气候条件与降雨特征,提出对现场粗粒,细粒板块状盐渍土区段盐溶的深度处理分别为80 cm和50 cm
英文摘要	In order to solve the engineer application problems of the plate-like saline soil of Hongshankou--Shanshan freeway in Xinjiang, this paper studies the road performance of the plate-like saline soil, based on the permeability test, unconfined compression strength test,CBR test and bearing test. The result shows that the value of plate-like saline soil’s natural strength ranges widely from 2.8 to 28.6 Pa, conditioned by the uneven distribution of salinity, different grad-ation and size effects of soil sample and other factors. The CBR value is 120% and much greater than the one of non-plate-like saline soil, which is 28.6% and much less than the design deflection. This data indicates that the plate-like saline soil can be used as the subgrade if the immersion of water can be control properly. Permeability tests’ results give the salt-in depth are 80 cm and 50 m respectively about coarse-grained soil and fine-grained soil, combined with the surrounding environment in Xinjiang weather conditions and rain capacity along with Hongshankou--Shanshan freeway
中文关键词	道路工程 ; 路基 ; 板块状盐渍土 ; 路用性能 ; 强度特性
英文关键词	road engineering subgrade plate-like saline soil road performance strength characteristic
语种	中文
国家	中国
收录类别	CSCD
WOS类目	TRANSPORTATION ; CONSTRUCTION BUILDING TECHNOLOGY
WOS研究方向	Transportation ; Construction & Building Technology
CSCD记录号	CSCD:4131139
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227358
作者单位	1.长安大学公路学院, 西安, 陕西 710064, 中国; 2.新疆维吾尔自治区交通厅, 乌鲁木齐, 新疆 830000, 中国; 3.广东省公路勘察规划设计院有限公司, 广州, 广东 510507, 中国
推荐引用方式 GB/T 7714	乌延玲,冯忠居,王廷武,等. 极度干旱区板块状盐渍土路用性能试验[J],2011,31(1):31-35.
APA	乌延玲,冯忠居,王廷武,&刘小飞.(2011).极度干旱区板块状盐渍土路用性能试验.长安大学学报. 自然科学版,31(1),31-35.
MLA	乌延玲,et al."极度干旱区板块状盐渍土路用性能试验".长安大学学报. 自然科学版 31.1(2011):31-35.