Roof-cutting pressure-relief coal-pillar-free self-forming roadway three-dimensional physical model test system and method

Abstract

The invention belongs to the technical field of testing or analyzing materials by means of measuring the physical properties of the materials, and particularly relates to a roof-cutting pressure-relief coal-pillar-free self-forming roadway three-dimensional physical model testing system and a roof-cutting pressure-relief coal-pillar-free self-forming roadway three-dimensional physical model testing method. The system comprises a frame system, a hydraulic servo loading system and a control and test system, the frame system comprises a base, a left vertical wall, a right vertical wall, a front moving body, a rear moving body, a cross beam and a material frame, the base, the left vertical wall, the right vertical wall, the front moving body, the rear moving body and the cross beam define a containing space, and the material frame is arranged on the base and located in the containing space; the hydraulic servo loading system is arranged in the accommodating space and comprises six loading planes and loading oil cylinders, and the loading oil cylinders on the six loading planes are respectively fixed on the base, the left vertical wall, the right vertical wall, the front moving body, the rear moving body and the cross beam; and the control and test system is electrically connected with the servo valve of each loading oil cylinder. According to the invention, three-direction six-surface loading and 110 construction method mining whole process simulation can be realized.

Description

technical field [0001] The invention belongs to the technical field of testing or analyzing materials by means of measuring the physical properties of materials, and in particular relates to a three-dimensional physical model test system and method for roof-cutting and pressure-relieving non-coal pillar-free self-forming roadways. Background technique [0002] Coal is the main energy source in our country. The reserves of coal resources at a depth of 2000m have reached 5.9 trillion tons, and its position is difficult to replace in a short period of time. Well drilling rigs and shaft boring machine equipment and various adapted drilling technologies and processes have realized the transformation from manual drilling, drilling and blasting to mechanized rock-breaking drilling; at the same time, with the depletion of shallow resources, Exploration and development of deep resources have been put on the agenda. With the increasing excavation depth, it is particularly important t...

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Problems solved by technology

At present, the test results of the indoor test cannot fully meet the technical guidance for on-site construction.

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