烧料礓石改性浆体–遗址土体界面抗剪性能试验

doi:10.13722/j.cnki.jrme.2016.0785

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Abstract To explore the shear resistance behavior of grout-soil interface in anchoring conservation of earthen sites and reveal the internal mechanical mechanism of anchorage system，calcined ginger nuts，fly ash，quartz sand and soil from earthen sites which are commonly used in anchoring engineering are selected as the main grout materials. Bonded samples were made by grout and undisturbed soil from earthen sites. Regarding the actual environment at which the anchor system survives，all the samples were buried and maintained in outdoor soil mass. The relationship between shear stress and displacement，strength parameters，and a new fitting formula were gained by direct shear test. The results show that slurry and soil fail to bond，interfacial shear strength should rely on sliding friction and particles interlock capacity. The mixing slurry of calcined ginger nuts with earthen sites soil presents the largest inner friction angle，which means that compatibility between slurry and soil is of important significance to improve shear strength of interface. Owing to the large variation of temperature and moisture and consolidation of grout-soil interface by PS solution，shear resistance of grout-soil interface is to some extent weakened. The experimental results reveal that anchor craft of earthen sites plays an important role in the improvement of shear strength.

Key words： soil mechanics earthen sites anchor slurry calcined ginger nuts grout-soil interface direct shear test shear resistance behavior

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	Articles by authors
	WANG Nan1
	ZHANG Jingke1
	2
	SHAN Tingting1
	GUO Qinglin2
	ZHAO Linyi2
	LI Zuixiong2

Cite this article:

WANG Nan1,ZHANG Jingke1,2, et al. Experiment on shear resistance behavior of interface between slurry modified by calcined ginger nuts and soil mass of earthen sites[J]. , 2016, 35(S2): 4279-4286.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2016.0785 OR https://rockmech.whrsm.ac.cn/EN/Y2016/V35/IS2/4279

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