CN106285689A - A kind of reinforcing sealing device for ore deposit blast in well to pithead - Google Patents

A kind of reinforcing sealing device for ore deposit blast in well to pithead Download PDF

Info

Publication number
CN106285689A
CN106285689A CN201610646515.8A CN201610646515A CN106285689A CN 106285689 A CN106285689 A CN 106285689A CN 201610646515 A CN201610646515 A CN 201610646515A CN 106285689 A CN106285689 A CN 106285689A
Authority
CN
China
Prior art keywords
well
reinforcing
seat
connecting cylinder
pithead
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610646515.8A
Other languages
Chinese (zh)
Other versions
CN106285689B (en
Inventor
孙丽君
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Chuan9 Construction Co., Ltd.
Original Assignee
孙丽君
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 孙丽君 filed Critical 孙丽君
Priority to CN201610646515.8A priority Critical patent/CN106285689B/en
Priority to CN201810458235.3A priority patent/CN108708728B/en
Priority to CN201810458237.2A priority patent/CN108708729B/en
Publication of CN106285689A publication Critical patent/CN106285689A/en
Application granted granted Critical
Publication of CN106285689B publication Critical patent/CN106285689B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D7/00Shaft equipment, e.g. timbering within the shaft
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D5/00Lining shafts; Linings therefor
    • E21D5/04Lining shafts; Linings therefor with brick, concrete, stone, or similar building materials
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D5/00Lining shafts; Linings therefor
    • E21D5/11Lining shafts; Linings therefor with combinations of different materials, e.g. wood, metal, concrete
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00Methods or devices for use in mines or tunnels, not covered elsewhere

Abstract

The invention discloses a kind of reinforcing sealing device for ore deposit blast in well to pithead, including: well seat, described well seat includes well seat and goes into the well seat, described upper well seat be arranged on described in go into the well above seat and be the setting that matches, described upper well seat lateral wall is provided with sealing and reinforcing mechanism;Described a kind of for ore deposit blast in well, the reinforcing sealing device of pithead is also included well head, bracing reinforcement mechanism is set in described well head, described bracing reinforcement mechanism is provided with the use of well lid;Described sealing and reinforcing mechanism and described bracing reinforcement mechanism be inside and outside with the use of.The present invention meet easy to use on the premise of; change traditional technical scheme; use new reinforcing Sealing Technology; greatly improve the reinforcing sealing effectiveness to mine well head; stability is the best, it is to avoid explosion causes mine to cave in event, greatly improves safety coefficient and protects mine workman's life security; there is preferable safe application performance, meet actual operation requirements.

Description

A kind of reinforcing sealing device for ore deposit blast in well to pithead
Technical field
Present invention relates particularly to a kind of reinforcing sealing device for ore deposit blast in well to pithead, belong to mine well head and add Gu technical field.
Background technology
In the mine of underground exploitation, also referred to as mine, the mine such as the inclined shaft in mine underground developing, vertical shaft, footrill Open up and the overall situation of metal mine or the production and construction of coal mining mine is had important and far-reaching impact, the base of its not only relation mine Build quantities, initial investment and speed of shaft sinking, it is often more important that the working condition of mine, technical-economic index will be determined for a long time. A series of roadways are i.e. dug in development from ground to underground, pass to exploiting field.The subject matter that development needs solve is: just Really divide field with "nine squares", select rational expanding design, determine ore deposit capacity of well, divide mining level by absolute altitude, select suitably Draft type, carry out exploiting field deployment and determine exploiting field exploitation order etc..Development is generally divided into the form of pit shaft Be opened up by adits, slope development and shaft development, using rational mining methods is the key doing shaft production well.
Actual exploitation is to need mine is carried out explosion, in order to the carrying out of follow-up development work.The developing of mine can To be divided into shaft development, slope development, it is opened up by adits and combined development, main shaft and transportation roadway etc. are required for permanent supporting, can Building arch supporting to use, arching supporting, the fluffy supporting of frame, suspension roof support, bolt-spary supports, bolt-mesh-spurting supporting, cable bolting, metal encircles Shape bracket support, work stone supporting, armored concrete supporting, certainly also have the combined supporting between all kinds of supportings;Getting working face It is accomplished by gib, mainly gets the modes such as post, hydraulic prop supporting, wooden prop supporting ready;Mine after typically all using Formula of moving back is mined, Bian Caibian strengthening supporting;Goaf generally use filling or etc. its own collapse.
At present, needing, through row, well head is reinforced encapsulation process in mine blasting engineering, at entrance, this reinforces close through row Envelope, prior art uses the mode of multilamellar supporting to reinforce box and seals, owing to blasting engineering vibration amplitude is very big, relates to and affect face Amassing relatively wide, use the mode of multilamellar supporting to carry out reinforcing sealing and be unable to reach predetermined consolidation effect, reinforcing and sealing effectiveness are all Poor, there is mine and cave in and affect surrounding enviroment, time serious, jeopardize mine workman's life security.For this reason, it may be necessary to design Kind new technical scheme, it is possible to comprehensive overcome the deficiencies in the prior art.
Summary of the invention
The deficiency that the present invention exists for prior art just, it is provided that a kind of reinforcing for ore deposit blast in well to pithead Sealing device, meet easy to use on the premise of, change traditional technical scheme, use new reinforcing Sealing Technology, greatly Improve the reinforcing sealing effectiveness to mine well head, stability is the best, it is to avoid explosion causes mine to cave in event, greatly carries High safety coefficient and protect mine workman's life security, has preferable safe application performance, meets actually used wanting Ask.
For solving the problems referred to above, the technical solution used in the present invention is as follows:
A kind of reinforcing sealing device for ore deposit blast in well to pithead, including well seat, described well seat include well seat and under Well seat, described upper well seat be arranged on described in go into the well above seat and be the setting that matches, described upper well seat lateral wall is provided with sealing Strengthening mechanism;
Described a kind of for ore deposit blast in well, the reinforcing sealing device of pithead is also included well head, in described well head, support is set Strengthening mechanism, described bracing reinforcement mechanism is provided with the use of well lid;
Described sealing and reinforcing mechanism and described bracing reinforcement mechanism be inside and outside with the use of.
As the improvement of technique scheme, described sealing and reinforcing mechanism includes connecting cylinder, described connecting cylinder is machined with Coordinating the connection interface that described upper well seat uses, described connecting cylinder two ends are provided with projection, and described connecting cylinder two ends are respectively provided with Have with the use of connecting plate, described connecting plate is machined with coordinate described projection use chute, described sealing and reinforcing mechanism Also include the auger spindle through described connecting plate and connecting cylinder, described auger spindle is provided with tightening device.
As the improvement of technique scheme, described bracing reinforcement mechanism includes connecting cylinder and lower connecting cylinder, described on Connecting cylinder is the setting that is connected with described lower connecting cylinder, is provided with link slot in described upper connecting cylinder and described lower connecting cylinder, It is provided with adjusting means on described link slot, in described link slot, is provided with the connection coordinating described adjusting means to use Axle, described connecting shaft two ends are provided with clamping butcher's knife and chopping block, and described adjusting means is provided with the tune for regulating connecting shaft tightness Joint screw rod, described adjusting screw rod top is provided with handle portion, is provided with the reinforcing spiral shell for regulating effect below described handle portion Female.
As the improvement of technique scheme, described upper connecting cylinder and described lower connecting cylinder are detachable connection, and institute State connecting cylinder and described lower connecting cylinder junction is provided with the detachable connection fixture block installed.
As the improvement of technique scheme, described upper connecting cylinder top is provided with well lid, is provided with below described well lid Threaded rod, described upper connecting cylinder top is provided with rib, and described rib is provided with the screw thread coordinating described threaded rod to use Hole.
As the improvement of technique scheme, the plate part of described upper well seat is equipped with steel mesh reinforcement group, described in go into the well Seating portion is equipped with ring steel reinforced bar group, and described upper well seat and described seat of going into the well are formed by concreting.
As the improvement of technique scheme, described upper well seat includes circulus and round table-like structure, described in go into the well seat For circulus, wherein, described upper well seat endoporus is up-small and down-big two holes, and hole diameter is less than described well lid diameter.
As the improvement of technique scheme, set between described sealing and reinforcing mechanism and described upper well seat lateral wall contact surface It is equipped with seal washer.
Compared with prior art, the implementation result of the present invention is as follows for the present invention:
A kind of reinforcing sealing device for ore deposit blast in well to pithead of the present invention, is meeting premise easy to use Under, change traditional technical scheme, use new reinforcing Sealing Technology, utilize sealing and reinforcing mechanism and bracing reinforcement mechanism to be formed For inside and outside complementation and with the use of effect, greatly improve the reinforcing sealing effectiveness to mine well head, stability is the best, keeps away Having exempted from explosion causes mine to cave in event, greatly improves safety coefficient and protects mine workman's life security, having relatively Good safe application performance, meets actual operation requirements.
Accompanying drawing explanation
Fig. 1 is a kind of reinforcing schematic diagram of sealing device for ore deposit blast in well to pithead of the present invention;
Fig. 2 is sealing and reinforcing mechanism knot in a kind of reinforcing sealing device for ore deposit blast in well to pithead of the present invention Structure schematic diagram;
Fig. 3 is bracing reinforcement mechanism knot in a kind of reinforcing sealing device for ore deposit blast in well to pithead of the present invention Structure schematic diagram.
Detailed description of the invention
Present disclosure is described below in conjunction with specific embodiments.
As shown in figures 1 and 3, for a kind of reinforcing sealing device for ore deposit blast in well to pithead of the present invention Structural representation.
A kind of reinforcing sealing device for ore deposit blast in well to pithead of the present invention, including: well seat, well seat includes Upper well seat 10 and seat 20 of going into the well, upper well seat 10 is arranged on above seat 20 of going into the well and is the setting that matches, and upper well seat 10 lateral wall sets It is equipped with sealing and reinforcing mechanism 40;A kind of for ore deposit blast in well, the reinforcing sealing device of pithead is also included well head 30, well head Bracing reinforcement mechanism 50 is set in 30, bracing reinforcement mechanism 50 is provided with the use of well lid 60;Sealing and reinforcing mechanism 40 With bracing reinforcement mechanism 50 be inside and outside with the use of.Sealing and reinforcing mechanism 40 includes connecting cylinder 41, and connecting cylinder 41 is machined with The connection interface 411 that in cooperation, well seat 10 uses, connecting cylinder 41 two ends are provided with projection 412, and connecting cylinder 41 two ends are respectively provided with Have with the use of connecting plate 42, connecting plate 42 is machined with coordinate projection 412 use chute 421, sealing and reinforcing mechanism 40 Also include the auger spindle 43 through connecting plate 42 and connecting cylinder 41, auger spindle 43 is provided with tightening device 431;Bracing reinforcement mechanism 50 Be the setting that is connected including upper connecting cylinder 51 and lower connecting cylinder 52, upper connecting cylinder 51 and lower connecting cylinder 52, upper connecting cylinder 51 and under It is provided with link slot 53 in connecting cylinder 52, link slot 53 is provided with adjusting means 54, be provided with in link slot 53 and join Closing the connecting shaft 55 that adjusting means 54 uses, connecting shaft 55 two ends are provided with clamping butcher's knife and chopping block 56, adjusting means 54 are provided with For regulating the adjusting screw rod 57 of connecting shaft 55 tightness, adjusting screw rod 57 top is provided with handle portion 58, sets below handle portion 58 It is equipped with the reinforcing nut 59 for regulating effect.A kind of reinforcing sealing for ore deposit blast in well to pithead of the present invention Device, meet easy to use on the premise of, change traditional technical scheme, use new reinforcing Sealing Technology, utilize and seal Strengthening mechanism 40 and bracing reinforcement mechanism 50 be formed as inside and outside complementary and with the use of effect, greatly improve mine well head Reinforcing sealing effectiveness, stability is the best, it is to avoid explosion causes mine to cave in event, greatly improve safety coefficient and Protect mine workman's life security, there is preferable safe application performance, meet actual operation requirements.
The most with improvement, as it is shown on figure 3, upper connecting cylinder 51 and lower connecting cylinder 52 are detachable connection, and upper connection Cylinder 51 and lower connecting cylinder 52 junction are provided with the connection fixture block 70 of detachable installation.Attachment structure is strong, and installation and removal are more Convenient, meet application request.
The most with improvement, as it is shown on figure 3, well lid 60 is arranged on connecting cylinder 51 top, below well lid 60, it is provided with spiral shell Rasp bar 61, upper connecting cylinder 51 top is provided with rib 511, and rib 511 is provided with the screwed hole that matching thread bar 61 uses 512.With the use of effect preferable, there is the strongest combinative structure, meet actual operation requirements.
Specifically, the plate part of upper well seat 10 is equipped with steel mesh reinforcement group, and seat 20 part of going into the well is equipped with ring steel reinforced bar Group, and upper well seat 10 and seat 20 of going into the well form by concreting.
Specifically, upper well seat 10 includes circulus and round table-like structure, and seat 20 of going into the well is for circulus, wherein, and upper well Seat 10 endoporus are up-small and down-big two holes, and hole diameter is less than well lid 60 diameter.
Specifically, as it is shown in figure 1, be provided with sealing gasket between sealing and reinforcing mechanism 40 and upper well seat 10 lateral wall contact surface Circle 80.Strengthen sealing property, convenient use.
Above content is detailed description the most made for the present invention, it is impossible to assert that the present invention is specifically real Execute and be only limitted to these explanations.For those skilled in the art, before without departing from present inventive concept Put, it is also possible to make some simple deduction or replace, all should be considered as belonging to the scope of protection of the invention.

Claims (8)

1. for an ore deposit blast in well reinforcing sealing device to pithead, including: well seat, it is characterised in that: described well seat Including upper well seat (10) and seat of going into the well (20), described upper well seat (10) be arranged on described in go into the well seat (20) top and be to match to set Putting, described upper well seat (10) lateral wall is provided with sealing and reinforcing mechanism (40);
Described a kind of for ore deposit blast in well, the reinforcing sealing device of pithead is also included well head (30), in described well head (30) Bracing reinforcement mechanism (50) is set, described bracing reinforcement mechanism (50) is provided with the use of well lid (60);
Described sealing and reinforcing mechanism (40) and described bracing reinforcement mechanism (50) be inside and outside with the use of.
A kind of reinforcing sealing device for ore deposit blast in well to pithead, it is characterised in that: institute State sealing and reinforcing mechanism (40) and include connecting cylinder (41), described connecting cylinder (41) is machined with the described upper well seat (10) of cooperation and uses Connection interface (411), described connecting cylinder (41) two ends are provided with projection (412), and described connecting cylinder (41) two ends are respectively provided with Have with the use of connecting plate (42), described connecting plate (42) is machined with and coordinates described projection (412) chute that uses (421), described sealing and reinforcing mechanism (40) also includes the auger spindle (43) through described connecting plate (42) and connecting cylinder (41), described Tightening device (431) it is provided with on auger spindle (43).
A kind of reinforcing sealing device for ore deposit blast in well to pithead, it is characterised in that: institute State bracing reinforcement mechanism (50) and include connecting cylinder (51) and lower connecting cylinder (52), described upper connecting cylinder (51) and described lower connection Cylinder (52) is the setting that is connected, and is provided with link slot (53), institute in described upper connecting cylinder (51) and described lower connecting cylinder (52) State and on link slot (53), be provided with adjusting means (54), in described link slot (53), be provided with the described adjusting means of cooperation (54) connecting shaft (55) used, described connecting shaft (55) two ends are provided with clamping butcher's knife and chopping block (56), described adjusting means (54) On be provided with the adjusting screw rod (57) for regulating connecting shaft (55) tightness, described adjusting screw rod (57) top is provided with handle portion (58), described handle portion (58) lower section is provided with the reinforcing nut (59) for regulating effect.
A kind of reinforcing sealing device for ore deposit blast in well to pithead, it is characterised in that: institute State connecting cylinder (51) and described lower connecting cylinder (52) is detachable connection, and described upper connecting cylinder (51) and described lower connection Cylinder (52) junction is provided with the connection fixture block (70) of detachable installation.
A kind of reinforcing sealing device for ore deposit blast in well to pithead, it is characterised in that: institute Stating well lid (60) and be arranged on described upper connecting cylinder (51) top, described well lid (60) lower section is provided with threaded rod (61), described on Connecting cylinder (51) top is provided with rib (511), and described rib (511) is provided with and coordinates described threaded rod (61) to use Screwed hole (512).
A kind of reinforcing sealing device for ore deposit blast in well to pithead, it is characterised in that: institute The plate part stating well seat (10) is equipped with steel mesh reinforcement group, described in go into the well seat (20) part be equipped with ring steel reinforced bar group, and Described upper well seat (10) and described seat of going into the well (20) are formed by concreting.
A kind of reinforcing sealing device for ore deposit blast in well to pithead, it is characterised in that: institute State well seat (10) and include circulus and round table-like structure, described in seat (20) of going into the well be circulus, wherein, described upper well seat (10) endoporus is up-small and down-big two holes, and hole diameter is less than described well lid (60) diameter.
A kind of reinforcing sealing device for ore deposit blast in well to pithead, it is characterised in that: institute State and be provided with seal washer (80) between sealing and reinforcing mechanism (40) and described upper well seat (10) lateral wall contact surface.
CN201610646515.8A 2016-08-09 2016-08-09 It is a kind of to be used for reinforcing sealing device of the mine blast in well to pithead Active CN106285689B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201610646515.8A CN106285689B (en) 2016-08-09 2016-08-09 It is a kind of to be used for reinforcing sealing device of the mine blast in well to pithead
CN201810458235.3A CN108708728B (en) 2016-08-09 2016-08-09 It is a kind of for mine blast in well to the reinforcing sealing device of pithead
CN201810458237.2A CN108708729B (en) 2016-08-09 2016-08-09 A consolidate sealing device that is used for blasting in pit to mine mouth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610646515.8A CN106285689B (en) 2016-08-09 2016-08-09 It is a kind of to be used for reinforcing sealing device of the mine blast in well to pithead

Related Child Applications (2)

Application Number Title Priority Date Filing Date
CN201810458235.3A Division CN108708728B (en) 2016-08-09 2016-08-09 It is a kind of for mine blast in well to the reinforcing sealing device of pithead
CN201810458237.2A Division CN108708729B (en) 2016-08-09 2016-08-09 A consolidate sealing device that is used for blasting in pit to mine mouth

Publications (2)

Publication Number Publication Date
CN106285689A true CN106285689A (en) 2017-01-04
CN106285689B CN106285689B (en) 2018-10-09

Family

ID=57667030

Family Applications (3)

Application Number Title Priority Date Filing Date
CN201810458237.2A Active CN108708729B (en) 2016-08-09 2016-08-09 A consolidate sealing device that is used for blasting in pit to mine mouth
CN201810458235.3A Active CN108708728B (en) 2016-08-09 2016-08-09 It is a kind of for mine blast in well to the reinforcing sealing device of pithead
CN201610646515.8A Active CN106285689B (en) 2016-08-09 2016-08-09 It is a kind of to be used for reinforcing sealing device of the mine blast in well to pithead

Family Applications Before (2)

Application Number Title Priority Date Filing Date
CN201810458237.2A Active CN108708729B (en) 2016-08-09 2016-08-09 A consolidate sealing device that is used for blasting in pit to mine mouth
CN201810458235.3A Active CN108708728B (en) 2016-08-09 2016-08-09 It is a kind of for mine blast in well to the reinforcing sealing device of pithead

Country Status (1)

Country Link
CN (3) CN108708729B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111271063B (en) * 2020-01-20 2022-03-25 黑龙江工业学院 A consolidate sealing device that is used for blasting in pit to mine mouth

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102401616A (en) * 2011-10-11 2012-04-04 中国矿业大学(北京) Blasting excavation method of vertical shaft
CN202390857U (en) * 2012-01-10 2012-08-22 刘建华 Inspection wellhead reinforcement structure
CN103422862A (en) * 2013-07-26 2013-12-04 王绍华 Ultra-large hole-diameter drilling shaft drilling method
CN203717014U (en) * 2014-03-10 2014-07-16 山东科技大学 Novel explosion-proof apparatus for return air vertical shaft
RU144329U1 (en) * 2014-04-08 2014-08-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) DEVICE FOR Dismounting Shaft Barrier Reinforcement Elements
CN205315001U (en) * 2015-12-14 2016-06-15 西安汇科地质技术服务有限责任公司 Opening of mines reinforcing apparatus
CN105714859A (en) * 2016-03-15 2016-06-29 万庆昆 Reinforcing device for opening of inspection chamber

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2518772B2 (en) * 1992-06-13 1996-07-31 株式会社金澤製作所 Vertical pit seal device
CN2642839Y (en) * 2003-08-15 2004-09-22 王守利 Easily opening and closing sealed anti-theft well mouth

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102401616A (en) * 2011-10-11 2012-04-04 中国矿业大学(北京) Blasting excavation method of vertical shaft
CN202390857U (en) * 2012-01-10 2012-08-22 刘建华 Inspection wellhead reinforcement structure
CN103422862A (en) * 2013-07-26 2013-12-04 王绍华 Ultra-large hole-diameter drilling shaft drilling method
CN203717014U (en) * 2014-03-10 2014-07-16 山东科技大学 Novel explosion-proof apparatus for return air vertical shaft
RU144329U1 (en) * 2014-04-08 2014-08-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) DEVICE FOR Dismounting Shaft Barrier Reinforcement Elements
CN205315001U (en) * 2015-12-14 2016-06-15 西安汇科地质技术服务有限责任公司 Opening of mines reinforcing apparatus
CN105714859A (en) * 2016-03-15 2016-06-29 万庆昆 Reinforcing device for opening of inspection chamber

Also Published As

Publication number Publication date
CN108708728A (en) 2018-10-26
CN108708729A (en) 2018-10-26
CN108708728B (en) 2019-07-19
CN108708729B (en) 2020-06-05
CN106285689B (en) 2018-10-09

Similar Documents

Publication Publication Date Title
Zhang et al. Green coal mining technique integrating mining-dressing-gas draining-backfilling-mining
CN102797465B (en) Underground ultra-thin virtual protection layer hydraulic coal mining method
CN108518222B (en) Paste body filling combination top plate presplitting second mining super high seam stops the method for adopting line coal column
CN109209293B (en) Comprehensive outburst prevention construction method for rock cross-cut outburst coal seam
Gong et al. Surrounding rock deformation mechanism and control technology for gob-side entry retaining with fully mechanized gangue backfilling mining: a case study
CN104763434B (en) A kind of without coal column double lanes driving method
US20190301283A1 (en) Method for recovering room-mining coal pillars by solid filling in synergy with artificial pillars
CN105545353B (en) A kind of Man-made False construction method based on paste body filling
CN103835723B (en) Pit shaft passes through the comprehensive pre-administering method on stratum, goaf
CN105927232B (en) A kind of mine is without the deeply stifled shallow note grouting method in clear area and slip casting safety device
CN109209392A (en) Loopful excavation method suitable for IV-V grade of country rock of large cross-section tunnel
CN107091091A (en) A kind of steeply-inclined seam mining gob-side entry retaining method of prefabricated arc support
CN102777185A (en) Inclined well shaft construction technology
CN111364997A (en) Upward drift-caving combined mining method
CN107269221B (en) A kind of mine special synchronous drilling device
CN103726858A (en) Underground large-scale cave depot project sphere-cylinder combination excavation method
CN105804786A (en) Method for layer penetrating, drilling, pressing punching and permeability improving of soft coal seam floor
CN105507947B (en) A kind of networking waste filling method
CN109812269A (en) It is a kind of suitable for second mining working face without pillar mining method
CN105952492A (en) A method for high-gas coal seam working surface drilling and exploitation gas pre-drainage
CN105240012A (en) F-type section coal-mining method allowing commingled mining of coal pillars
CN112943306A (en) Roadway fault zone supporting method and step based on instability deformation research
CN106285689A (en) A kind of reinforcing sealing device for ore deposit blast in well to pithead
Zhang et al. Patterns and security technologies for co-extraction of coal and gas in deep mines without entry pillars
CN205135648U (en) Rib wall caving anchor

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20180828

Address after: 401120 111 Shuangfeng Road, two Road Town, Yubei District, Chongqing

Applicant after: Chongqing Chuan9 Construction Co., Ltd.

Address before: 264000 room 317, Yuxi Road, Zhifu District, Yantai, Shandong, 317

Applicant before: Sun Lijun

GR01 Patent grant
GR01 Patent grant