预制内锚头新型锚索锚固性能研究及工程应用

doi:10.13722/j.cnki.jrme.2017.0795

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Abstract A new pressure-type anchor cable with precast anchor head was developed to explore enduring and anchoring effect of anchorage system in the high embankment and deep cut slope. The structural characteristics, anchorage mechanism and the method of stress calculation were analyzed. The enduring and anchoring performance of the traditional type of cable of pressure concentrated and the new type of cable of pressure anchor with precast anchor head were compared through the indoor experiments. The anchoring force of the new type of cable of pressure anchor with precast anchor head is 2 times the one of the traditional type of cable. The load carried by the new type of cable of pressure anchor with precast anchor head at the moment of occurring of plastic deformation is 1.6 times of that by the traditional pressure anchor. The range of compressive strain distribution in the grouting body of the new anchor bolt is about 0.5 times of that of the traditional tensions anchor. The zone with the largest compressive strain the traditional pressure-concentrated anchor cable is in the head and the maximum compressive strain is 1 219.7 ??. However，the maximum compressive strain is in the tail of the new anchor，and the maximum compressive strain is 309.5 ??. In an engineering project，the anchorage force of the new anchor cable was raised by 54.07%.

Key words： slope engineering anchor technology precast anchor head new type anchor cable slop reinforcement full scale model test.

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	Articles by authors
	YUAN Kun1
	ZHANG Yufang1
	2
	LI Jian1
	2
	WAN Junli1
	2

Cite this article:

YUAN Kun1,ZHANG Yufang1,2, et al. Performance and application of anchor with a new pressure-type of anchor cable with precast anchor head[J]. , 2018, 37(1): 77-86.

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2017.0795 OR http://www.rockmech.org/EN/Y2018/V37/I1/77

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