Reconstructed bearing layer control technology of large-deformation roadway surrounding rock
A control technology and bearing layer technology, which is applied in the field of surrounding rock control of large deformation roadways, can solve problems such as difficult and effective control
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[0015] The present invention will be described in further detail below in conjunction with accompanying drawings and examples.
[0016] The invention provides a large-deformation roadway surrounding rock reconstruction bearing layer control technology.
[0017] Such as figure 1 Shown, concrete technology of the present invention is as follows:
[0018] (1) According to the geological data and the functional requirements of the roadway 4, select a reasonable location for the roadway 4, determine the scope of the plastic (broken) zone 2 of the surrounding rock of the roadway 4, and select the appropriate basic support parameters of the anchor rod 6 and the anchor cable 5. The roof of the surrounding rock and the two sides are supported to form the action area 3 of the basic support system of the roadway 4 surrounding rock.
[0019] (2) Determine the reasonable position and diameter of the upper drill hole 7 and the lower drill hole 8 at the lower part of the two sides of the s...
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