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Home > News > Industry Information > Analysis of self drilling anchor bar supporting technology in deep roadway
Analysis of self drilling anchor bar supporting technology in deep roadway
Deep roadway excavation of rock mass, rock mass under complicated environment of high temperature, high stress, high water pressure .There is great change in the deep surrounding rock geological mechanics environment, so the mechanical characteristics of deep roadway surrounding rock has its peculiar.
So give you some tips about making control scheme of high stress self drilling anchor bar supporting,
First,the self drilling anchor bar supporting structure must have a good ductility,in other words,no doubt the destruction is inevitable occurs if the self drilling anchor bar supporting system that has no the pressure and yield properties.So you have to maintain stability of the self drilling anchor bar supporting system.
Second, the deep roadway instability is the concrete performance of damage of rock mass , you should have the function of the self drilling anchor bar supporting system under the condition of static instability routine.
Third, supporting equipment also should have the following features:
1.The supporting device should has high bearing capacity, the self drilling anchor bar supporting system of the yield strength is bigger, far more than the strength of the static balance needed.
2.The supporting design of roadway surface coverage increased, roadway instability of deep well area is not easy to determine.
3.Allowing the rock mass displacement larger before the self drilling anchor bar supporting system failure, therefore absorbing big of the kinetic energy of rock release, under the condition of instability and failure of deep roadway, you should design appropriate supporting structure or system, the requirements before in roadway damage ,it must improve the bunker by the supporting strength, to ensure the integrity of the rock mass, rock mass and support together form a continuum, further improve the system which can quickly absorb seismic reinforcement.
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