With sign well to compare, the weakness of the inclined well BE:At nature condition homology, the inclined well want ratio to sign well long of many;Round a rock unsteady and solid, inclined and tidy tube maintenance expenses Gao;Promote speed when adoption winch promote lower, the ability be smaller, the steel wire rope wear away severity, the motive consume big, promote expenses higher, be the well farmland be inclined long more big, adoption several winch promote and turn to carry link many, system complications, even want to take up equipments and manpower more;Because the inclined well be longer, follow the well tube spread to establish tube the pipeline length for need of the road, electric cable bigger, can adopt to drill a hole while having a condition tube road drain power supply, but want for this reserve public security coal pillar, increment coal pillar loss;But to produce the ability outsize and inclined well, the assistance promote of workload very big, even the beard increase to open pair inclined well.Moreover, the well ventilated breeze road of the inclined well be longer and gush to have great capacity to the gas of large mineral well, the inclined and tidy tube cross section be small, well ventilated the resistance lead big, probably satisfy not well ventilated of request, have to open another appropriation well ventilated or return to sign of breeze well combine and make assistance to promote;When topsoil for rich contain water of pound at layer or flow a sand layer, the inclined and tidy tube dig into the technique complications, sometimes hard pass.
Therefore be the well coal seam inside the farmland to bury not deep, the topsoil layer be not thick, hydrology geology circumstance simple, master in not demand special method construction of slow inclined with tilt to one side coal seam, general can adoption the inclined well expand.The mineral well promoted to adoption string car or Ji Dou, general promote to carry on mine by 1 beneficial, can also adoption the two pieces mine, but not proper adoption 3.With new strong dint with be applicable to 25 degrees Qing Cape of the tape transport machine of development, mine of large and inclined well depth will big in order to increase, inclined well application of scope will more extensive.
The slice well with inclined dish has ground industry building and technique material simple, the well lane amount of engineering be little, initial stage investment province, set up well period short, hurl produce with attain design time of ability quicker etc. advantage.Produce system while mining a shallow department simple, boost production a potential bigger, technique economy the index sign be better.Its weakness is:Mouth of a well dispersion, cover more;With mine a development toward the deep department, after turning into two pieces to mine, mineral well produce the link increase, produce the ability descend, technique economy effect more bad;Because the well type be small, the service time limit be not long, each mouth of a well produce continue multifarious, to assurance mineral area balanced produce disadvantageous.The past slice well with inclined dish apply a condition BE:The coal seam shallow department, coal seam Lou the hair teach good;Follow the coal seam incline to of the plait be wrinkly with break a layer to incise less;The Qing Cape smaller thin and medium thick coal seam;Topsoil layer and coal seam divide to take of hang deep general not proper over 20~30 m;The hydrology geology's condition is simple.Area in the region need coal urgent, the geology investigate to explore degree low, large equipments and device supply be subjected to restriction and set up a well technique strength weak, adoption slice the well with inclined dish be beneficial.In addition, such as the coal seam endow with to save unsteady, geology structure complications, first construction produce investigate to explore well, can also adoption slice the well with inclined dish expand.
Sign the applicability that the well expand very strong, general be free from coal seam Qing Cape, thickness, gas hydrology etc. nature condition of restriction.Sign the well tube of well short, promote speed quick, promote ability big, to assistance promote special beneficial;To well type outsize mineral well, can the sign of the adoption big cross section tidy tube, material 2 sets promote an equipments;The cross section of well tube is very big, can satisfy strong wind quantity of request;Because the well tube be short, the well ventilated resistance be smaller, more beneficial to deep well.Its weakness is opposite with inclined well advantage should, no longer give unnecessary details.Therefore be the geography geology of well farmland a condition disadvantageous while adopt even Tong or inclined well, rightness can consideration adoption sign well to expand.Endow with to save to the coal seam more deep, the topsoil layer be thick, or hydrology circumstance more complications, the well tube need to use a special method construction, or many the level mine the mineral well of nasty and inclined coal seam, general all should adoption sign well to expand.For tilt to one side length big of well farmland, adoption sign well many the level expand an ability compare reasonably give attention to both a shallow department with deep mine of department, also more beneficial.
Section 5 is comprehensive to expand
At some concrete under the condition, adoption one of the well tube form expand and have on the technique difficulty, economy top not reasonable, can adoption dissimilarity well tube the form carry on comprehensive expand.
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