Mold for crack-containing bolting test

Abstract

The invention relates to a mould used for a crack-contained anchored test. The mould comprises a base seat; the base seat is provided with a base plate; side plates, end plates and vertical connecting rods are arranged on the base plate; the two end plates are vertically inserted and connected between the two ends of the two side plates respectively to form a frame body that is provided with an opening at the upper part; the two vertical connecting rods are arranged between the two side plates outside the two ends of the frame body respectively; the two side plates are connected by horizontalconnecting rods that are vertically connected with the vertical connecting rods; the center of the base plate is provided with a crack fixed device; the crack fixed device is provided with plastic thin slices. When in use, after crack and anchor rods are fixed, each screw nut is tightly fastened, semi-solid state rock-like materials or similar materials are casted into the mould of the frame bodyand then fully vibrated. Then after being maintained, the mould is dismounted. When the mould is dismounted, the screw nut A on the side plate is loosened firstly; and the side plates are dismounted;then a device fixing the crack at the bottom is dismounted; finally, the base plate and the end plates are dismounted. The invention has the advantages that the structure is simple, the cost is low, the assembly and dismounting are convenient, the efficiency is high, etc.

Description

technical field [0001] The invention relates to a test mold, in particular to a mold for an indoor test with a crack and an anchor test. Background technique [0002] In energy development, mining and cutting slopes, there are joint surfaces of various shapes and sizes, and the existence of these joint surfaces strongly affects and restricts the behavior of rock mass. The mechanical behavior of rock mass under load is actually a comprehensive reflection of its internal structural plane. Numerous rock mass engineering practices at home and abroad have shown that the instability of rock mass engineering is mostly caused by the expansion of defects such as internal joints and cracks. In order to limit the deformation and failure of rock mass, anchor rods are commonly used in rock mass engineering for reinforcement. A large number of bolt reinforcements are used in mine roadways, railway tunnels and various underground projects in China. The reinforcement effect of bolts is v...

AI Technical Summary

Problems solved by technology

At present, there are very few types of molds used to make rock-like materials or similar materials containing cracks and anchoring specimens, and the few molds are relatively complicated. On the one hand, the mold itself has complicated manufacturing processes and high processing costs On the other hand, the process of making test specimens is cumbersome, inconvenient to use, labor-intensive and time-consuming, and the anchor cannot be firmly fixed, and the effect of the anchor on crack reinforcement and crack arrest cannot be effectively simulated.

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