-
-
-
-
Honor
-
-
-
-
-
Contact
-
How to prevent roof fall? How to deal with roof fall?
Release time:
2019-08-27
Author:
Source:
1, must strictly strengthen the quality of mining face engineeringManagement, strengthen the quality of help, top plug back, to prevent piece help, leakage roof, the headspace must use large material plug back to connect the top, really can't connect the top must stop pushing, to be reportedSafety technical measuresProcessible only after handling.
2. When roof caving occurs in the mining surface, the team leader must organize personnel to reinforce the upper and lower brackets in the roof caving area in time after the roof pressure is stable to prevent the caving area from continuing to expand.
3, for the treatment of roof fall, the monitor according to the situation on the spot, take row gangue, wedge, help and other ways can be carried out, it is strictly prohibited to take risks and brute force.
4. Under normal circumstances, it is processed from bottom to top one by one. If there is no difficulty in shipping, it can be processed up and down at the same time.
5. After the edge bracket of the caving area is reinforced, insert a probe plate or wedge into the caving area along the edge bracket, and then ship and erect pillars under the shelter. Generally, a 1.8m long large plate or a 2.4m long square wooden column is used to set up a three-column bracket to support the caving area. The large plate or square wooden column must be vertically probed to the coal wall. The erected bracket must be strong and the pillar must be hit on the solid base, it is not allowed to hit floating coal (gangue). After the bracket is erected, the roof must be inserted and backed in good condition. In case of headspace, the roof must be connected with large material to prevent gangue from hurting people. Headspace and empty roof operations are strictly prohibited.
6. When erecting the bracket, the posterior bracket must be intact, firm and reliable, and the retreat must be kept unimpeded. When erecting the bracket, it can only be carried out one by one.
7. When dealing with roof fall, the head-on must be an experienced old worker, preferably 2-3 people, and there is an experienced old worker to watch the mountain.
8. In the process of dealing with roof caving, if the roof is pressed twice, the monitor and the security inspector must withdraw all personnel to the outside of the caving area in timeSecurityLocation, the head-on operation can only be started after the pressure is stable.
9, in the process of dealing with roof fall, the monitor should often inspect the activities of the bracket and roof near the caving area, and immediately organize personnel to deal with the problem and be responsible for the command in person. When dealing with the back road bracket, it is strictly prohibited to deal with the head-on from the caving area.
10. At the end of the shift, the squad leader and the security inspector must strictly check and accept the project quality in the risk area, and if unqualified products are found, they must organize personnel to rectify and pass the rectification in time.
11, processing time exceeds 24 hours, another report for processingMeasures.
Key words:
Previous Page
Previous Page:
