Abstract：
The bearing capacity of anchor is mainly determined by the frictional resistance between the geotechnical layer and anchoring segment grouting body，while the strength of the bond between the geotechnical layer and anchoring segment grouting body is constant，then the anchor cable into the hole diameter is larger，the bearing capacity of the unit length of anchor cable is greater Generally the anchorage length of soil anchor is 6~12 m，for rock anchor is 3~8 m，even the anchorage length increases，the bearing capacity of anchor doesn't have a significant improvement The traditional anchor cable into the hole diameter is generally 150~200 mm，and its bearing capacity is very limited If we can increase the diameter of anchor，the bearing capacity will be improved.
XU Lu-ming,WANG Jian-hua,XIAO Zhao-ran. APPLICATION OF LARGE DIAMETER ANCHOR IN DEEP EXCAVATION RETAINING AND PROTECTION[J]. Architecture Technology, 2013, 44(9): 816-818.
