Method for aiming and directionally marking central lines through visual inspection
A centerline and marking technology, which is applied in the field of visual inspection, aiming, orientation and marking the centerline, can solve the problems of low efficiency, inconvenient, and carrying bulky instruments, and achieve the effects of improving work efficiency, reducing inconvenience, and saving time
Active Publication Date: 2010-06-09
LINGBAO CITY JINYUAN MINING
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Problems solved by technology
[0002] In the directional roadway project, it is necessary to mark the center line on a regular basis. At present, the theodolite is mainly used to mark the center line. In this way, on the one hand, it is very inconvenient to carry heavy instruments every time. On the other hand, The operation of the theodolite marking the center line method is cumbersome, it takes a long time to mark the center line, and the efficiency is low
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[0015] The technical scheme of the present invention is described in further detail below in conjunction with accompanying drawing, but protection scope of the present invention is not limited thereto:
[0016] Such as Figure 1~3 As shown, first use theodolite to mark out a set of center lines A and B between the roadway roof 3 and roadway floor 4 between the left wall 1 and the right wall 2 of the roadway, and the distance between the two lines A and B is 3.0m , when the roadway project needs to mark the center line again, on the roadway roof 3 of the two lines of A and B, hang the upper hammer balls 6a, 6b by the suspension wires 5a, 5b respectively, and the person 71 who looks ahead also takes the suspension wire 5c to put the hammer The ball 6c hangs on the roof 3 of the roadway. Afterwards, the person 71 who is looking forward takes the flashlight 81, and the light faces the direction of the A line. Also take a flashlight 82, the light is towards the person 71 who is lo...
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The invention discloses a method for aiming and directionally marking central lines through visual inspection, which comprises the following steps that: a group of central lines A and B is marked on a top plate of a roadway with a theodolite; when another central line is required to be marked, a plumb bob is suspended on the top plate of the roadway with the lines A and B; another plumb bob is also suspended on the top plate by a person looking forward; then the person looking forward holds a flashlight of which the light faces the line A and the centre of the light is on the suspension line where the person stands; another person stands in the line A to aim at the line B and also holds a flashlight of which the light faces the person looking forward; at the time, the person looking forward shakes the flashlight leftwards and rightwards; the person standing in the line A commands the person looking forward to move leftwards and rightwards through a two-point one-line method until the person looking forward stands in the same line as the person giving the command; then the top plate of the roadway is marked and the plumb bob is suspended so that the line C is marked; and the personstanding in the line A stays still, and the person looking forward moves backwards from the line C to mark the line D with the same method. The method has the advantages of simpleness and convenience, short marking time and high working efficiency.
Description
technical field [0001] The invention belongs to the technical field of mining, and in particular relates to a method for visually aiming, aiming, and marking a central line. Background technique [0002] In the directional roadway project, it is necessary to mark the center line on a regular basis. At present, the theodolite is mainly used to mark the center line. In this way, on the one hand, it is very inconvenient to carry heavy instruments every time. On the other hand, The method of marking the center line with theodolite is cumbersome to operate, it takes a long time to mark the center line, and the efficiency is low. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a method for visually aiming at and marking the midline. [0004] To achieve the above object, the present invention has taken the following technical solutions: [0005] A method of visually aiming at and markin...
Claims
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IPC IPC(8): E21B47/02
Inventor 张启星
Owner LINGBAO CITY JINYUAN MINING