| abstract |
The present invention relates to a kind of rocks in direct tension sample quick preparation device and preparation methods, belong to rock mechanics experiment technical field, the device includes pedestal and inverted L shape bracket, pedestal and inverted L shape bracket form basic framework, basic framework inboard, upright is provided with sliding rail, it is provided with the sliding block being matched therewith on sliding rail, rotation pull down mechanism is connected with by the first connector on sliding block, is provided with steel bushing below rotation pull down mechanism；It is sequentially installed with horizontal adjustment platform, tilt adjustment platform and magnechuck A on pedestal, a steel bushing is adsorbed on magnechuck A, rocks in direct tension sample includes rock stick, the steel pipe for being set in rock stick both ends and the plastics buckle closure for being located at steel pipe both ends.The device of the invention and method can quickly prepare high-precision both-end steel pipe felted rocks in direct tension sample using rotation pull-down pattern, the defects of cementing uneven, cementing eccentric can effectively be excluded, with the advantages that economic convenient, structure is simple, flexible operation. |