CN115293432A - Method for measuring and calculating head-on attitude of coal mine driving face - Google Patents

Method for measuring and calculating head-on attitude of coal mine driving face Download PDF

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CN115293432A
CN115293432A CN202210959372.1A CN202210959372A CN115293432A CN 115293432 A CN115293432 A CN 115293432A CN 202210959372 A CN202210959372 A CN 202210959372A CN 115293432 A CN115293432 A CN 115293432A
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inclination angle
heading
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王言龙
惠金卫
吴宪国
梁正
刘海双
张小金
黄付军
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Abstract

The invention discloses a method for measuring and calculating head-on attitude of a coal mine heading face, which comprises the following steps of taking a roadway construction orientation as a reference, actually measuring a pseudo inclination angle of a side part of the heading face and a pseudo inclination angle of the head-on of the heading face, directly measuring a measuring tool by using a compass, a slope gauge and the like, substituting the measuring tool into a calculation formula, setting the roadway orientation as w, revealing an earth layer inclination as theta, and revealing an earth layer inclination angle of the head-on heading face of the heading face as theta'. The invention provides a calculation formula of the heading exposed stratum inclination and the inclination angle, the heading orientation is known as w, the slope pseudo inclination angle is measured by a compass or a slope gauge as beta, and the heading pseudo inclination angle is taken as alpha, the formula is introduced, the heading exposed stratum inclination and the inclination angle can be rapidly obtained, the calculation method can be introduced by improving the automatic pseudo inclination angle obtaining function of the compass, the function of rapidly obtaining the heading exposed stratum attitude of the roadway on site is realized, and the geological data can be conveniently collected.

Description

Method for measuring and calculating head-on attitude of coal mine driving face
Technical Field
The invention relates to the technical field of coal mine tunneling, in particular to a method for measuring and calculating head-on attitude of a coal mine tunneling working face.
Background
The method is characterized in that formation attitude is necessarily collected geological data when the underground coal mine tunneling working face is exposed, which is necessary for improving the basic geological data of a mine, but no tool and method for rapidly acquiring the exposed formation attitude exist under the coal mine, so that the collected data is incomplete or the accuracy is low; at present, a method of averaging through multipoint measurement is adopted, so that data collection personnel can work for a long time at the head of the tunneling machine, the operation risk is high, and the influence on the construction of the tunneling project is large.
The existing coal mine collecting and revealing stratum attitude tool mostly adopts a mechanical compass or an electronic compass, but due to the complex underground operation environment, the influence of cables, metal supporting materials and the like on tools and instruments directly measured by a magnetic field is serious, the accuracy of a measuring result is low, and particularly the trend measuring deviation is large.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a method for measuring and calculating the head-on attitude of a coal mine tunneling working face.
The invention provides a method for measuring and calculating head-on attitude of a coal mine tunneling working face, which comprises the following steps:
s1: measuring an inclination angle, taking the roadway construction direction as a reference, and directly measuring a pseudo inclination angle of the side part of a driving face of the driving face and a pseudo inclination angle of the head of the driving face by actually measuring, wherein a measuring tool can be a compass, a slope gauge and the like;
s2: substituting a calculation formula, setting the roadway orientation as w, the exposed stratum inclination as theta, the exposed stratum inclination angle of the heading of the tunneling working face as theta', the pseudo inclination angle of the side part of the tunneling working face as beta, the pseudo inclination angle of the heading of the tunneling working face as alpha, and the included angle between the exposed stratum trend and the roadway orientation as gamma, and utilizing the formula:
tan(θ′)＝√((tan(α) 2 +tan(β) 2 )
tan(γ)＝tan(α)/tan(β)
the dip angle theta' of the stratum and the included angle gamma between the trend and the roadway azimuth can be rapidly calculated.
Preferably, the pseudo inclination angle beta of the side part of the tunneling working face is positive when going up the mountain and negative when going down the mountain along the roadway construction direction, the pseudo inclination angle alpha of the head of the tunneling working face is positive when the right height is positive, and negative when the left height is negative.
Preferably, the values of α and β are in the range of (+ -90 °), and when β is a positive value, θ = (w-180 + γ); when β is negative, θ = (w + γ) may find the formation-revealing tendency.
The invention has the beneficial effects that:
the invention provides a calculation formula of the heading exposed stratum tendency and the dip angle, when the underground roadway is calculated to expose the stratum attitude, the roadway orientation is known as w, the slope pseudo dip angle is measured by a compass or a slope gauge as beta, and the heading pseudo dip angle is introduced into the formula, so that the heading exposed stratum tendency and the dip angle can be rapidly obtained, the calculation method can be introduced by improving the automatic pseudo dip angle obtaining function of the compass, the roadway exposed stratum attitude can be rapidly obtained on site, and the geological data can be conveniently collected.
Drawings
Fig. 1 is a schematic flow structure diagram of a coal mine heading face attitude measurement and calculation method provided by the invention;
fig. 2 is a schematic diagram of formation attitude revealed by the heading head.
In the figure: 1. the heading face comprises a heading face side part 2, a heading face head 3, a pseudo-inclination angle beta 4 of the heading face side part, an included angle gamma 5 between the exposed stratum trend and the roadway direction, a pseudo-inclination angle alpha 6 of the heading face head, an exposed stratum inclination angle theta' 7 of the heading face head, an exposed stratum trend 8 of the heading face, and an exposed stratum trend of the heading face.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Embodiment 1, referring to fig. 1 to 2, a method for measuring and calculating head-on attitude of a coal mine heading face includes the following steps:
s1: measuring an inclination angle, taking the roadway construction direction as a reference, and directly measuring a pseudo inclination angle of the side part of the tunneling working face and a pseudo inclination angle of the head of the tunneling working face through actual measurement, wherein a measuring tool can be a compass, a slope gauge and the like;
s2: substituting a calculation formula, setting the roadway orientation as w, revealing stratum inclination as theta 'at the head of the tunneling working face, revealing stratum inclination as beta', revealing the pseudo inclination of the side part of the tunneling working face as beta, revealing the pseudo inclination of the head of the tunneling working face as alpha, revealing stratum trend and roadway orientation as gamma, and utilizing the formula:
tan(θ′)＝√((tan(α) 2 +tan(β) 2 )
tan(γ)＝tan(α)/tan(β)
the dip angle theta' of the stratum and the included angle gamma between the trend and the roadway direction can be rapidly calculated.
And (3) taking a positive value when the slope part of the tunneling working face goes up the mountain and a negative value when the slope part of the tunneling working face goes down the mountain along the roadway construction direction, taking a positive value when the slope part of the tunneling working face is right and taking a negative value when the slope part of the tunneling working face goes left.
The value ranges of alpha and beta are (+/-90 degrees), and when the beta is a positive value, theta is (= (w-180 + gamma); when β is negative, θ = (w + γ) may find the formation-revealing tendency.
When the stratum occurrence of the underground roadway exposure is calculated, the roadway orientation is known as w, the slope pseudo-inclination angle is measured by a compass or a slope gauge as beta, and the head-on pseudo-inclination angle is measured as alpha, and the formula is substituted, so that the head-on stratum exposure tendency and the inclination angle can be quickly obtained. The calculation method can be introduced by improving the automatic pseudo-inclination acquisition function of the compass, so that the function of rapidly acquiring the attitude of the exposed stratum of the roadway on site is realized, and the geological data can be conveniently collected.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims (3)

1. A method for measuring and calculating head-on attitude of a coal mine tunneling working face is characterized by comprising the following steps:
s1: measuring an inclination angle, taking the roadway construction direction as a reference, and directly measuring a pseudo inclination angle of the side part of the tunneling working face and a pseudo inclination angle of the head of the tunneling working face through actual measurement, wherein a measuring tool can be a compass, a slope gauge and the like;
s2: substituting a calculation formula, setting the roadway orientation as w, the exposed stratum inclination as theta, the exposed stratum inclination angle of the heading of the tunneling working face as theta', the pseudo inclination angle of the side part of the tunneling working face as beta, the pseudo inclination angle of the heading of the tunneling working face as alpha, and the included angle between the exposed stratum trend and the roadway orientation as gamma, and utilizing the formula:
tan(θ′)＝√((tan(α) 2 +tan(β) 2 )
tan(γ)＝tan(α)/tan(β)
the dip angle theta' of the stratum and the included angle gamma between the trend and the roadway azimuth can be rapidly calculated.
2. The method for measuring and calculating the head-on attitude of the coal mine heading face according to claim 1, wherein the pseudo inclination angle β of the side part of the heading face takes a positive value when going up a hill and takes a negative value when going down a hill along the construction direction of a roadway, and the pseudo inclination angle α of the head-on of the heading face takes a positive value when going right and a negative value when going left.
3. The method for measuring and calculating the head-on attitude of a coal mine excavation face according to claim 1, wherein the value ranges of α and β are (+ -90 °), and when β is a positive value, θ = (w-180 + γ); when β is negative, θ = (w + γ) may find the formation uncovering tendency.
CN202210959372.1A 2022-08-10 2022-08-10 Method for measuring and calculating head-on attitude of coal mine driving face Pending CN115293432A (en)

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Application Number Priority Date Filing Date Title
CN202210959372.1A CN115293432A (en) 2022-08-10 2022-08-10 Method for measuring and calculating head-on attitude of coal mine driving face

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210959372.1A CN115293432A (en) 2022-08-10 2022-08-10 Method for measuring and calculating head-on attitude of coal mine driving face

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CN115293432A true CN115293432A (en) 2022-11-04

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