For researching the self-property of yielding anchor cable in the high slope supported

and getting first-hand data of yielding support

the article taking the high slope located in Hongping power plant in Jiangxi province as engineering background

and using a new yielding anchor cable which is produced by Tuqiang Engineering Materials Co.

Ltd.

field experiments on different length of free section and yielding anchor cable are conducted. Then reveals: Part of the appeared obvious yielding slippage; yielding effect is significant. But the pressure value is great different between tension of orifice and the design of yielding support. It indicated that orifices tension is not as ideal all passed to the anchor cable inside the hole; instead a large part of the orifice tension will be used to overcome the fritional resistance between the anchor cable and anchor hole

And quantity has reached the degree of which is not allowed to ignore. At the same time

test reveals that the length of anchor and free section

number of beam and anchor hole construction quality play a crucial influence on the value of the friction resistance; the longer anchor cable and free section

the more number of beam

the worse the construction quality are

the larger frictional resistance is. And then design focus and further research contents about slope protection by anchor cable in future are put forward.