抗疏力固化剂改性黄土工程性质及其改性机制

doi:10.13722/j.cnki.jrme.2015.1782

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (1265 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract This paper studies the improvement mechanism of loess soil modified by the consolid system in comparison with the loess soil modified by cement and lime. The mechanical strength test，disintegration test and flexible-wall permeability test were conducted to measure the engineering property of soil. The water drop penetration time test，X-Ray diffraction test，scanning electron microscope(SEM) test and mercury intrusion porosimetry(MIP) test were carried out to investigate the microscopic properties，such as the surface energy，mineral composition，microstructure and pore filling condition of loess soil. The loess soil modified by the consolid system has higher strength，better durability of slaking and slightly lower permeability. The surface energy of soil particles is reduced greatly and the water repellency ability is obviously better than that of cement or lime modified loess soil. The phase peak groups are basically same in the X-ray diffraction patterns. The silt particle arrangement of loess soil remains unchanged with the increase of consolid system content，but the fine particles coagulate with more adhering material. The volume of large，medium and small pores in loess soil are reduced slightly while the micro pores are increased obviously. The improvement mechanism of loess soil modified by consolid system is that the decrease of surface energy of loess soil enhances the water repellency and water-resisting property，the consolid system reinforces the bonding strength of the microstructure of soil particle skeleton，the weak swelling and pore filling effect of consolid system lead to good permeability of loess soil. Apart from improving the mechanical and hydraulic properties，the consolid system solve the problem of improving the water resistance property and keeping the good permeability of loess soil to some extent.

Key words： soil mechanics loess soil consolid system engineering properties modified mechanism

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	PENG Yu1
	ZHANG Huyuan1
	2
	LIN Chengbin1
	WANG Xuewen1
	YANG Long1

Cite this article:

PENG Yu1,ZHANG Huyuan1,2, et al. Engineering properties and improvement mechanism of loess soil modified by consolid system[J]. , 2017, 36(3): 762-772.

URL:

http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2015.1782 OR http://www.rockmech.org/EN/Y2017/V36/I3/762

[6]	FAROUKI O T. The thermal properties of soils in cold regions[J]. Cold Regions Science and Technology，1981， 5(1) ：67-75. " target="_blank">
[8]	KASSIAN W N J. Typical field application of consolid in Tanzania[C]// Proceedings of First Road Transportation Technology Transfer Conference in Africa. Arusha，Tanzania：[s. n.]. 2001：23-25. " target="_blank">
[16]	SECO A，RAMÍREZ F，MIQUELEIZ L，et al. Stabilization of expansive soils for use in construction[J]. Applied Clay Science，2011，51(3)：348-352.
[18]	KISHAN K，MISHRA C B，AMIN A A. Comparative study of thickness design of flexible pavement by use of stabilizers in black cotton soil[J]. Journal of International Academic Research for Multidisciplinary，2014，2(6)：170-176. " target="_blank">
[23]	尹亚雄，王生新，韩文峰，等. 加气硅化黄土的微结构研究[J]. 岩土力学，2008，29(6)：1 629-1 633.(YIN Yaxiong，WANG Shengxin，HAN Wenfeng，et al. Study on microstructure of CO2-silicification grouted loess[J]. Rock and Soil Mechanics，2008，29(6)：1 629-1 633. (in Chinese))
[26]	LAPIERRE C，LEROUEIL S，LOCAT J. Mercury intrusion and permeability of Louiseville clay[J]. Canadian Geotechnical Journal，1990，27(6)：761-773. " target="_blank">
[4]	李先瑞，李晓媛，王圣麟. 改性黄土垂直方向毛细水上升作用研究[J]. 科学技术与工程，2015，35(28)：191-195.(LI Xianrui，LI Xiaoyuan，WANG Shenglin. Capillary water migration effects of modified loess in vertical direction[J]. Science Technology and Engineering，2015，35(28)：191-195.(in Chinese))
[14]	张虎元，林澄斌，生雨萌. 抗疏力固化剂改性黄土工程性质试验研究[J]. 岩石力学与工程学报，2015，34(增1)：3 574-3 580.(ZHANG Huyuan，LIN Chengbin，SHENG Yumeng. Experimental study of engineerging properties of loess reinforced by consolid system[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(Suup.1)：3 574-3 580.(in Chinese))
[24]	黄新，许晟，宁建国. 含铝固化剂固化软土的试验研究[J]. 岩石力学与工程学报，2007，26(1)：156-161.(HUANG Xin，XU Sheng，NING Jianguo. Experimental research on stabilized soft soils by alumina bearing modifier[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(1)：156-156.(in Chinese))
[28]	李云峰. 黄土渗透性与空隙性关系的研究[M]. 北京：地质出版社，1994：84-157.(LI Yunfeng. Research on the relationships between permeability and porosity for loess[M]. Beijing：Geological Publishing House，1994：84-157. (in Chinese)) " target="_blank">
[2]	杨校辉，黄雪峰，朱彦鹏，等. 大厚度自重湿陷性黄土地基处理深度和湿陷性评价试验研究[J]. 岩石力学与工程学报，2015，33(5)： 1 063-1 074.(YANG Xiaohui，HUANG Xuefeng，ZHU Yanpeng，et al. Experimental study on collapsibility evaluation and treatment depths of collapsible loess upon self weight with thick depth[J]. Chinese Journal of Rock Mechanics and Engineering，2015，33(5)：1 063-1 074.(in Chinese)) " target="_blank">
[12]	EREN S，FILIZ M. Comparing the conventional soil stabilization methods to the consolid system used as alternative admixture matter in Isoarta Daridere material[J]. Construction and Building Materials，2009，23(7)：2 473-2 680. " target="_blank">
[22]	马学宁，梁波，黄志军，等. 高速客运专线路基改良填料的试验研究[J]. 铁道学报，2005，27(5)：96-101.(MA Xuening，LIANG Bo， HUANG Zhijun，et al. Experimental study on improved loess for subgrade of high-speed dedicated passenger special lines[J]. Journal of The China Railway Society，2005，27(5)：96-101.(in Chinese))
[9]	林澄斌. 抗疏力固化黄土工程性质试验研究[硕士学位论文][D]. 兰州：兰州大学，2015.(LIN Chengbin. Experimental study of engineering properties of loess reineforced by consolid system[M. S. Thesis][D]. Lanzhou：Lanzhou University，2015.(in Chinese)) " target="_blank">
[19]	TAILOR R M，SHAH N C. Applications of innovative materials for performance improvement of flexible pavement over expansive subgrade[J]. International Journal of Geomate，2015，8(1)：1 197-1 202. " target="_blank">
[29]	BELL F G. Lime stabilization of clay minerals and soils[J]. Engineering Geology，1996，42(4)：223-237. " target="_blank">
[1]	李保雄，牛永红，苗天德. 兰州马兰黄土的物理力学特性[J]. 岩土力学，2007，28(6)：1 077-1 082.(LI Baoxiong，NIU Yonghong，MIAO Tiande. Physico-mechanical characteristics of Malan loess in Lanzhou region[J]. Rock and Soil Mechanics，2007，28(6)：1 077-1 082.(in Chinese))
[3]	松尾新一郎. 土质加固方法手册[M]. 孙明漳，梁清彦译. 北京：中国铁道出版社，1983：2-31.(MATSUNOO S. Soil solidification methods manual[M]. Translated by SUN Mingzhang，LIANG Qingyan. Beijing：China Railway Publishing House，1983：2-31.(in Chinese)) " target="_blank">
[5]	LI M，ZHANG H Y. Hydrophobicity and carbonation treatment of earthen monuments in humid weather condition[J]. Science China Technological Sciences，2012，55(8)：2 313-2 320. " target="_blank">
[7]	张虎元，彭宇，王学文，等. 抗疏力固化剂改性黄土进失水能力研究[J]. 岩土力学，2016，38(增1)：1-8.(ZHANG Huyuan，PENG Yu，WANG Xuewen，et al. Water entrance-and-release ability of loess soil modified by consolid system[J]. Rock and Soil Mechanics，2016，38(Supp.1)：1-8.(in Chinese))
[10]	刘万锋，胡爱萍，孙波，等. 抗疏力技术在黄土塬区上的应用研究[J]. 中国建材科技，2009，(2)：73-75.(LIU Wanfeng，HU Aiping，SUN Bo，et al. The applied research of consoild technology in loess plateau region[J]. China Building Materials Science and Technology，2009，(2)：73-75.(in Chinese))
[11]	李琦，何兆益，冷艳玲. 抗疏力固化土的室内击实试验研究[J]. 西部交通科技，2008，(6)：36-38.(LI Qi，HE Zhaoyi，LENG Yanling. Testing study of indoor compaction test for con-solid solidified-soil[J]. Western China Communications Science and Technology，2008，(6)：36-38.(in Chinese))
[13]	刘俊，陈思旻，凌天清，等. 抗疏力固化土干缩性能试验研究[J].城市道桥与防洪，2010，(3)：167-170.(LIU Jun，CHEN Simin，LING Tianqing，et al. Test study on dry shrinkage properties of soil solidified by consolid system[J]. Urban Roads Bridges and Flood Control，2010，(3)：167-170.(in Chinese)) " target="_blank">
[15]	SECO A，RAMÍREZ F，MIQUELEIZ L，et al. The use of non- conventional additives in Marls stabilization[J]. Applied Clay Science，2011，51(4)：419-423.
[17]	邹雁飞. 抗疏力固化剂配合比设计研究[J]. 交通标准化，2012，(4)： 64-66.(ZUO Yanfei. Study on mixture ratio design of consoled agent[J]. Communications Standardization，2012，(4)：64-66.(in Chinese)) " target="_blank">
[20]	刘俊. 抗疏力土壤固化剂的应用研究[硕士学位论文][D]. 重庆：重庆交通大学，2010.(LIU Jun. Application of research on the soil stabilizer of the Consolid System[M. S. Thesis][D]. Chongqing：Chongqing Jiaotong University，2010.(in Chinese)) " target="_blank">
[21]	刘万锋，杨永东，张斌伟. 抗疏力固化土工程特性及其在黄土路基稳定层中的应用[J]. 中国建材科技，2014，(6)：61-62.(LIU Wanfeng，YANG Yongdong，ZHANG Binwei. Study on construction properties of consolid solidified soil and its application on road pavement base in collapsible loess region[J]. China Building Materials Science and Technology，2014，(6)：61-62.(in Chinese))
[25]	BISDOM E B A，DEKKER L W，SCHOUTE J F. Water repellency of sieve fractions from sandysoils and relationships with organic material and soil structure[J]. Geoderma，1993，56(1)：105-118. " target="_blank">
[27]	雷祥义. 中国黄土的孔隙类型与湿陷性[J]. 中国科学，1987，(12)：1 309-1 316.(LEI Xiangyi. Chinese loess pore type and collapsibility[J]. Science China，1987，(12)：1 309-1 316.(in Chinese)) " target="_blank">