干旱区生态环境知识资源中心(Arid): 沙漠风积沙地基的水泥固化及其性能试验

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	沙漠风积沙地基的水泥固化及其性能试验
其他题名	CEMENT-STABILIZATION OF AEOLIAN SAND FOUNDATION AND PERFORMANCE TEST
	鲁先龙 1; 乾增珍 2; 杨文智 1; 郑卫锋 1
来源期刊	工业建筑
ISSN	1000-8993
出版年	2018
卷号	48 期号:3 页码:103-108
中文摘要	沙漠地区自然条件恶劣,风积沙结构松散、地基稳定性和承载性能差,常被视为工程建设"禁区"。但随着我国"一带一路"和全球能源互联网建设等国家战略的实施,越来越多的输电线路及其他关系国计民生的重点工程都需建设在沙漠腹地或需穿越沙漠地区。利用水泥作为固化剂固化稳定风积沙,形成固化风积沙地基将是改善其不利工程特性的有效手段。分析水泥作为固化剂固化稳定风积沙的基本原理,并采用内蒙古库布齐沙漠的风积沙试样,开展了不同水泥掺量下固化风积沙的强度和变形特性试验。结果表明:水泥作为固化剂能形成具有稳定的抗剪和抗压强度的固化风积沙地基,从而显著改善风积沙的强度和变形性能。当利用风积沙地基的天然含水量,并向其中掺入少量水泥固化稳定风积沙时,天然含水量与水泥掺量之间存在最优比值。
英文摘要	Desert areas are excluded from the engineering construction because of loose construction of aeolian sand, poor foundation stability and bearing capacity. However, with the implementation of strategies of the Silk Road Economic Belt and the 21st-Century Maritime Silk Road (B&R) and the Global Energy Internet (GEI), more and more transmission lines and other key projects related to national economy and people’s livelihood need to be built in desert hinterland or need to cross the desert areas. Cement-stabilization of aeolian sand can be regarded as an alternative method to improve the mechanical properties of aeolian sand in the desert areas. The purpose of the paper is to analyze the stabilization principle of aeolian sand and to investigate the strength and deformation of cement-stabilized aeolian sand, which was depended on the aeolian sand samples collected from the Hobq Desert. It was indicated that cement had contributed to form solidified aeolian sand foundation with stable shear and compressive strength, thereby significantly improved the strength and deformation of aeolian sand. Taking advantage of the natural water content of aeolian sand foundation, the aeolian sand foundation was stabilized when a small amount of cement was added to the aeolian sand foundation, and there was an optimal water-to-cement ratio.
中文关键词	沙漠地区 ; 风积沙 ; 固化土 ; 固化机理
英文关键词	desert area aeolian sand solidified soil stabilization mechanism
语种	中文
国家	中国
收录类别	CSCD
WOS类目	CONSTRUCTION BUILDING TECHNOLOGY
WOS研究方向	Construction & Building Technology
CSCD记录号	CSCD:6221378
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237769
作者单位	1.中国电力科学研究院有限公司, 北京 100192, 中国; 2.中国地质大学(北京), 北京 100083, 中国
推荐引用方式 GB/T 7714	鲁先龙,乾增珍,杨文智,等. 沙漠风积沙地基的水泥固化及其性能试验[J],2018,48(3):103-108.
APA	鲁先龙,乾增珍,杨文智,&郑卫锋.(2018).沙漠风积沙地基的水泥固化及其性能试验.工业建筑,48(3),103-108.
MLA	鲁先龙,et al."沙漠风积沙地基的水泥固化及其性能试验".工业建筑 48.3(2018):103-108.