(1China University of Mining and Technology， Beijing 100083 China) (2Mobile post-doctoral center of Mechanics，National University of Defence Technology，Changsha 410073 China) (3Institute of Chemical Defence of China PRI， Beijing 102205 China)
Abstract：This paper is a part of experimental study achievement gained on mine sites of Jincheng bureau and Huainan bureau. Anchoring force of bolt，pulling force of pull rod，upward force of pull rod，the surface displacement of tunnel，and the displacement in the depth of surrounding rocks were measured. The data are necessary for the study on supporting effect by truss.
4Khair A W. Physical and analytical modeling of the behavior of truss bolted mine roofs[A]. In：Proc. Int. Symp. on Rock Bolting[C]. Abisko：[s. n.]，1983，125～142
5Stankus J C，GuoS，MccaffreyJ J，et al. Innovative concept in tailgate entry support：elimination of crib blocks through utilization of new
2002, Vol. 21 
