The measures to prevent roofing at the opening of the roadway are as follows:
(1) The opening of the road should avoid the scope of the original roadway.
(2) Improve the initial support of the lifting shed. The shed leg of the original roadway must be removed after the opening of the shed is stabilized. It should not be removed prematurely. It is forbidden to first detach the shed leg and then support the shed.
(3) Pay attention to the quality and specifications of the lifting shed material to ensure that the lifting shed has sufficient strength.
(4) When the corner of the surrounding rock is crushed, the measures to enhance the stability of the shed should be taken in time.
(5) Before opening the anchor and anchoring roadway, it is necessary to reduce the spacing of the anchor row or increase the anchor cable for reinforcement support in the roadway 5m range before and after the opening.
LED floodlight is a kind of can be all directions even illuminate the point light source, it can adjust the illuminate of scope, performance in the scene for a graphic is octahedron.
Product features,
floodlight uniformly in all directions from a particular point ground illuminate objects, use it to light bulbs and candle analogy is best. floodlight can be placed anywhere in the scene.For example, can be placed outside the scope of camera, or is the inside of the object. In the cosco distance of the scene using many different colored floodlight is very common.These floodlights can mix and dark projection on the model.Because the illuminate of floodlight range is big, so the floodlight light effect is very easy to predict, and the lights and many auxiliary USES, for example, place the floodlight near the surface of the object position, will create a bright light on the surface.
Led Flood Light,Aluminum Die Casting Flood Light,High Intensity Led Flood Lights,Outdoor Led Flood Lighting
NINGBO ZHENHAI BOLANG METAL PRODUCT FACTORY , https://www.blcastings.com