Similar simulation experimental device of hydraulic energy-absorbing roadway support
US11326452B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2021 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Nov 12, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21F17/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A similar simulation experimental device of hydraulic energy-absorbing roadway support is provided. A similar model is placed in a model box, a roadway is excavated in the similar model, and hydraulic energy-absorbing support devices are placed in the roadway on the periphery of the roadway. Front and rear ends of the hydraulic energy-absorbing support device are connected to supporting plates, left and right sides of the model box are provided with horizontal hydraulic cylinders, and front ends of the horizontal hydraulic cylinders are connected to pressure plates. One or several cushion blocks are placed at the top of the model box, and an upper pressure plate is placed above the cushion block(s). Vertical hydraulic cylinders are installed at both ends of the upper pressure plate. An impact rod passing through the upper pressure plate is placed above the cushion block to apply vertical impact load to the similar model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.