Similar model test device for simulating residual deformation of stratum in old goaf

• Main Authors: JING SHIJIE, GUO WENBING, MA ZHIBAO, XU SHUGUANG, HAN MINGZHEN, JIAO YIHENG, LIU XUAN, YANG WEIQIANG
• Format: Patent
• Language: Chinese; English
• Published: 01.07.2022
• Subjects: CLEANING; CLEANING IN GENERAL; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PERFORMING OPERATIONS; PHYSICS; PREVENTION OF FOULING IN GENERAL; TESTING; TRANSPORTING

The utility model discloses a similar model test device for simulating residual deformation of an old goaf stratum, which comprises a base, the two sides of the upper surface of the base are respectively and fixedly connected with a fixed block, the two sides of the opposite inner walls of the two fixed blocks are jointly and fixedly connected with an observation plate, and the two observation plates are both fixedly connected with the base. The device has the advantages that the transparent model box enables the whole analog simulation test process to be visualized, the miniature inflatable jack device plays a role in supporting and releasing the spring device in the similar material laying process, and the device is simple in structure, convenient to use and high in practicability. The spring device plays a role in simulating broken rock mass of an overlying rock layer of an old goaf, the excavation process of a similar simulation test coal seam can be omitted, the time for researching stratum residual defo