Coal roadway crossing gas control drill hole design calculation method
A technology of design calculation and drilling through layers, applied in design optimization/simulation, geometric CAD, special data processing applications, etc., can solve problems such as no intelligent drilling design
Active Publication Date: 2021-06-04
ANHUI UNIV OF SCI & TECH
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Problems solved by technology
However, there is no precedent for intelligent borehole design, especially for complex coal seam environments containing methane gas
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Embodiment 1
[0038] see Figure 1-12 : A coal roadway cross-layer gas prevention and control drilling design calculation method, the calculation method includes:
[0039] S1. Determination and design of the design model of the pre-pumping coal roadway through-layer drilling;
[0040] S11. Drilling design through layers:
[0041] Design according to the database, rule base, and output parameters; the database in the layer-crossing drilling design in S11 includes spatial coordinate determination, extraction parameters, coal seam thickness, coal seam inclination, gas content, gas pressure, and construction drilling site; rule base Including drilling inclination, drilling azimuth, roadway azimuth, drilling length calculation, drilling opening position, drilling end hole position, and determination of the number of drilling holes; output parameters include drilling inclination, drilling azimuth, roadway azimuth Angle, drilling length, drilling opening point coordinates, drilling end point coo...
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The invention provides a coal roadway crossing gas control drill hole design calculation method. The calculation method comprises the steps: S1, determining and designing a design model of a pre-drainage coal roadway crossing drill hole i; s11, carrying out layer-crossing drilling design, wherein design is conducted according to the database, the rule base and the output parameters; s12,obtaining coordinates of end hole points of all the drill sites; s13, obtianing coordinates of all drilling site trepanning points; s2, determining and designing a layer penetrating drilling design model; s21, setting a layer-penetrating drilling design rule; and S22, carrying out layer penetrating drilling calculation. Based on a dynamic three-dimensional gas geologic model, a gas prevention and control drilling information database is established, and a gas prevention and control unmanned intelligent drilling design principle and method are provided; automatic establishment and accurate correction of a three-dimensional gas geologic model, automatic division and updating of extraction units, intelligent design and dynamic adjustment of drill holes, rationality evaluation of the drill holes and intelligent remediation are achieved.
Description
technical field [0001] The invention relates to the technical field of drilling holes for gas drainage in coal mines, in particular to a method for designing and calculating drilling holes for gas prevention and control in coal lanes. Background technique [0002] The design of gas prevention and control drilling considers many factors, one is geological characteristics such as coal bed structure, dip angle, and structure; the other is gas occurrence characteristics such as coal seam permeability and gas content; Layout method; fourth, related mining plans such as mining design, mining replacement time and space requirements; fifth, problems found in the process of gas control that are partially substandard or drilling holes are not in place. [0003] At present, the design of gas prevention and control drilling is mainly manual design by technicians based on the above factors, and the use of CAD and other software to draw drilling layout diagrams has low efficiency and heav...
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IPC IPC(8): G06F30/17G06F30/20G06F111/10
CPCG06F30/17G06F30/20G06F2111/10
Inventor 薛生郑晓亮李尧斌马衍坤刘星杨超宇江丙友郑春山
Owner ANHUI UNIV OF SCI & TECH