A construction system of austenitic ash hydrological hole in the steeply inclined coal seam associated with the Tan-Lu fault zone
A fault zone and steep inclination technology, applied in drilling equipment and methods, wellbore/well components, sealing/packing, etc., can solve problems such as hidden dangers of mine water inrush disasters, achieve simple and reasonable structure, prevent blowout problems, Easy to install and use
Active Publication Date: 2022-04-12
SHANDONG DONGSHAN MINING CO LTD ZHU BAI COAL MINING
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Problems solved by technology
[0004] Usually the Ordovician limestone is a strong aquifer, which is the indirect water source for coal seam mining, and there is a huge hidden danger of mine water inrush disasters
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[0029] see figure 1 , figure 2 , image 3 , Figure 4 , a kind of Austrian ash hydrological hole construction system associated with steeply inclined coal seams in the Tanlu fault zone provided by the embodiment of the present invention, such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the system includes a casing 1 arranged in a borehole 5, the borehole 5 is located at a selected hydrological observation point on the ground of the mine roadway 6; the first end of the casing 1 protrudes from the mine roadway On the ground, a plugging structure 2 is formed between the outer side of the casing 1 and the inner wall of the borehole;
[0030] A passive blowout prevention mechanism 3, the passive blowout prevention mechanism 3 includes a water pressure collection part 31, an encircling ram assembly 32 and two sets of drive assemblies 33, the water pressure collection part 31 is located at the first end of the casing 1 Between the encircling gate assembly 32; the...
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The invention discloses an Austrian ash hydrological hole construction system associated with a steeply inclined coal seam in the Tanlu fault zone. The system includes a casing arranged in a borehole, and the borehole is located at a hydrological observation point selected on the ground of a mine roadway; The first end of the casing protrudes from the ground of the mine roadway, and a sealing structure is formed between the outer side of the casing and the inner wall of the borehole; a passive blowout prevention mechanism, the passive blowout prevention mechanism includes hydraulic pressure A collecting part, an encircling ram assembly and two sets of driving assemblies, the hydraulic pressure collecting part is located between the first end of the casing and the encircling ram assembly. The Austrian ash hydrological hole construction system of the associated steeply inclined coal seam in the Tanlu fault zone provided by this application has a simple and reasonable structure and is easy to install and use. It is suitable for the drilling construction of underground hydrological holes, and can prevent the blowout problem of Austrian ash water inrush. It has high safety and is worthy of large-scale promotion and use.
Description
technical field [0001] The invention relates to the technical field of hydrological survey, in particular to an Austrian ash hydrological hole construction system associated with steeply inclined coal seams in the Tanlu fault zone. Background technique [0002] In the actual production and operation of coal mines, supplementary exploration in the mining area has become an indispensable part of coal mine geological work, especially for some mines with complicated geological conditions and special circumstances, the construction protection of hydrological long observation holes has become more obvious. [0003] In some coalfields, the stratigraphic sequences revealed in the range of minefields are Ordovician, Carboniferous, Permian, Cretaceous, and Quaternary in order from old to new. The strata were uplifted and denuded in the middle Ordovician, and were in false conformity contact with the Carboniferous strata. From the Middle Carboniferous, the strata received continuous de...
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IPC IPC(8): E21B33/06E21B34/02E21B7/20
CPCE21B33/06E21B34/02E21B7/20
Inventor 高建伟王成功齐东合茹新华董建廷王自波曹正刘顺娟刘艳洲
Owner SHANDONG DONGSHAN MINING CO LTD ZHU BAI COAL MINING