Advanced geological exploration device and method for directional drilling coal mine underground rock shield roadway
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A technology of directional drilling and shielding, which is applied in directional drilling, tunnels, mining equipment, etc., can solve the problems of low precision and achieve the effects of precise trajectory control, expanded coverage, and long detection distance
Pending Publication Date: 2022-07-01
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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[0009] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a device and method for advanced geological exploration of underground rock shield tunnels in coal mines by directional drilling, so as to solve the problem of the accuracy of advanced geological exploration of underground rock shield tunnels in coal mines in the prior art. low technical issues
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Embodiment 1
[0069] This embodiment provides an advanced geological exploration device for a directional drilling coal mine underground rock shield tunnel, such as Figure 2 to Figure 4 As shown, the device includes a mining dynamic formation detection instrument while drilling, and the mine dynamic formation detection instrument while drilling includes a short-range detection and transmission probe 9 and a long-distance signal transmission probe 10;
[0070] The short-range detection and transmission probe 9 includes a curved outer pipe 901, and the curved outer pipe 901 is provided with a screw 902, a universal torsion shaft 903 and a drive shaft 904 connected in sequence. The drill bit joint 905 to which the drill bit is connected, the rear end of the curved outer tube 901 is provided with a remote joint 906 for connecting with the remote signal transmission probe tube 10;
[0071] In this embodiment, the curved outer tube 901 , the screw rod 902 , the universal torsion shaft 903 and th...
Embodiment 2
[0087] This embodiment provides an advanced geological exploration method for underground rock shield tunnels in directional drilling coal mines, such as figure 1 As shown, the method includes the following steps:
[0088] Step 1: Route design of shield tunnel 1:
[0089] According to the preliminary geological survey data of the mine and the layout of the mine working face, determine the control distance between the shield tunnel 1 and the coal seam 2, design the shield tunnel 1 line, and determine the spatial parameters of the control point according to the construction control requirements of the shield tunnel 1;
[0090] Step 2: Explore the directional drilling 3 design:
[0091] Taking the starting point of the shield tunnel 1 line as the opening point, design the exploration directional drilling hole 3, and determine the plane coordinate parameters and section coordinate parameters of the exploration directional drilling hole 3;
[0092] Step 3, explore the constructio...
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Abstract
The invention provides an advanced geological exploration device and method for an underground rock shield roadway of a directional drilling coal mine. The advanced geological exploration method comprises the following steps: (1) designing a shield roadway line; (2) exploring directional drilling design; (3) exploring directional drilling sleeve section construction; (4) exploration directional drilling main hole construction is conducted, specifically, according to the design track of exploration directional drilling, a directional drilling machine and a mining while-drilling dynamic stratum detection instrument are utilized, a while-drilling measurement directional drilling technology is adopted to construct a main hole, and the mining while-drilling dynamic stratum detection instrument comprises a short-distance measurement and transmission probe tube and a long-distance signal transmission probe tube; (5) exploring directional drilling branch hole construction; (6) the design track of exploring directional drilling is corrected; (7) probing directional drilling completion; (8) remote exploration of geological anomalous bodies; (9) adjusting a shield roadway line; and (10) tunnel shield construction. The exploration distance is long, the track can be accurately controlled, the drilling work amount is small, and the exploration result is accurate.
Description
technical field [0001] The invention belongs to the technical field of coalfield geological exploration, relates to advanced geological exploration, and in particular relates to an advanced geological exploration device and method for a rock shield tunnel under a directional drilling coal mine. Background technique [0002] Roadway engineering is an indispensable part of coal mining. In high gas and coal and gas outburst mines, there are a large number of rock roadway excavation needs. In view of the problems of low efficiency and high labor intensity of traditional rock roadway excavation techniques such as drill-blast method and freezing method, in recent years, a mining shield machine has been developed, and a high-efficiency shield excavation technology for rock roadway has been developed, and the mechanized excavation of rock roadway has been realized. , more and more widely used in Anhui, Shanxi, Shaanxi and other regions. [0003] Considering that the shield machine ...
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