ZA202102741B - Frozen aquifer-based method for underground longwall face coal mining under water-containing condition - Google Patents

Frozen aquifer-based method for underground longwall face coal mining under water-containing condition

Info

Publication number
ZA202102741B
ZA202102741B ZA2021/02741A ZA202102741A ZA202102741B ZA 202102741 B ZA202102741 B ZA 202102741B ZA 2021/02741 A ZA2021/02741 A ZA 2021/02741A ZA 202102741 A ZA202102741 A ZA 202102741A ZA 202102741 B ZA202102741 B ZA 202102741B
Authority
ZA
South Africa
Prior art keywords
aquifer
frozen
under water
based method
coal mining
Prior art date
Application number
ZA2021/02741A
Inventor
Fan Gangwei
Zhang Dongsheng
Zhang Shizhong
Li Qizhen
Liu Bang
Xin Liankai
Liu Sixiang
Original Assignee
Univ China Mining
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 Univ China Mining filed Critical Univ China Mining
Publication of ZA202102741B publication Critical patent/ZA202102741B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C41/00—Methods of underground or surface mining; Layouts therefor
    • E21C41/16—Methods of underground mining; Layouts therefor
    • E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
ZA2021/02741A 2018-11-06 2021-04-23 Frozen aquifer-based method for underground longwall face coal mining under water-containing condition ZA202102741B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811313217.2A CN109577980B (en) 2018-11-06 2018-11-06 Underground longwall working face water-retaining coal mining method based on aquifer freezing
PCT/CN2019/108477 WO2020093813A1 (en) 2018-11-06 2019-09-27 Frozen aquifer-based method for underground longwall face coal mining under water-containing condition

Publications (1)

Publication Number Publication Date
ZA202102741B true ZA202102741B (en) 2022-10-26

Family

ID=65921634

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA2021/02741A ZA202102741B (en) 2018-11-06 2021-04-23 Frozen aquifer-based method for underground longwall face coal mining under water-containing condition

Country Status (4)

Country Link
CN (1) CN109577980B (en)
AU (1) AU2019376347B2 (en)
WO (1) WO2020093813A1 (en)
ZA (1) ZA202102741B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109577980B (en) * 2018-11-06 2020-09-04 中国矿业大学 Underground longwall working face water-retaining coal mining method based on aquifer freezing
CN110159267B (en) * 2019-04-18 2020-06-02 中国矿业大学 Water-bearing stratum sectional grouting curtain water-retention mining method
CN110749533B (en) * 2019-10-31 2020-12-11 中国矿业大学 Water-retention coal mining discrimination method based on equivalent water-resisting layer thickness
CN114086955A (en) * 2020-08-24 2022-02-25 神华神东煤炭集团有限责任公司 Water-retention mining method for shallow coal seam and application thereof
CN113006871B (en) * 2021-02-03 2024-01-30 淮北矿业股份有限公司 Dynamic stability monitoring and early warning method for underground deep-buried curtain
CN113063709B (en) * 2021-02-03 2023-06-30 中煤科工集团西安研究院有限公司 Method for determining curtain under complex aquifer condition
CN112832769B (en) * 2021-03-22 2023-03-14 中国矿业大学 Outburst prevention mining method of coal seam floor high-pressure-bearing water freezing method
CN113434819B (en) * 2021-06-24 2023-08-01 中国矿业大学 Method for determining influence time and distance of working face mining on goaf mining vibration activities
CN114352287A (en) * 2021-12-17 2022-04-15 贵州盘江煤电集团技术研究院有限公司 Water prevention and control method for coal mining working face of coal mine
CN115977650A (en) * 2022-11-22 2023-04-18 安徽理工大学 Communication freezing system based on plane skew connection channel and construction method thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1763660A1 (en) * 1980-05-14 1992-09-23 В.Н.Канистеров, П.К.Кучеба, Ф.М.Киржнер, А.В.Пшеченко и Л.М.Смирнов Method of working thick spontaneously combustible coal beds
CN104213932B (en) * 2014-08-07 2016-03-02 中国矿业大学 A kind of projecting coal bed waterpower phase transformation fracturing coal uncovering method
CN106014344B (en) * 2016-06-07 2017-05-03 中国矿业大学(北京) Environment-friendly water-holding coal and uranium coordinated mining system and application method thereof
CN106088104A (en) * 2016-06-27 2016-11-09 中国矿业大学 The construction method of manual pipe jacking associating diaphram wall supporting ultra-deep foundation pit
CN106759245A (en) * 2016-12-16 2017-05-31 中国矿业大学 Opencut coal mine mining freezes the water-retaining method in water-bearing layer
CN108035335B (en) * 2017-09-30 2019-12-20 中煤第五建设有限公司 Method for constructing shaft type underground parking garage by freezing method
CN108412498B (en) * 2018-03-06 2019-04-02 山东科技大学 Freeze sinking construction pit shaft annular causes calamity channel grouting treatment design method
CN109577980B (en) * 2018-11-06 2020-09-04 中国矿业大学 Underground longwall working face water-retaining coal mining method based on aquifer freezing

Also Published As

Publication number Publication date
AU2019376347A1 (en) 2021-05-06
AU2019376347B2 (en) 2022-03-24
CN109577980A (en) 2019-04-05
WO2020093813A1 (en) 2020-05-14
CN109577980B (en) 2020-09-04

Similar Documents

Publication Publication Date Title
ZA202102741B (en) Frozen aquifer-based method for underground longwall face coal mining under water-containing condition
SG11202111608VA (en) Method for reconstructing shield tunnel for mining construction
ZA201906164B (en) Grading method for water-preserving coal mining mine/mine area
ZA201601916B (en) Method for separately mining and transporting thick coal seam with gangue, and backfilling goaf with gangue
ZA202007716B (en) Comprehensive supporting method for a fully mechanized mining face of a coal mine
ZA201604911B (en) Hydraulic control system of fully-hydraulic drill type coal mining machine
ZA201600755B (en) Optical fiber grating temperature-sensing monitoring system and method for coal-mining working surface goaf in coal mine
ZA202006726B (en) Pressed coal filling mining system and process for end slope of open pit
ZA201708629B (en) Totally closed coal mining device of soil-like coal working face and coal mining method thereof.
GB2574331B (en) Mine field layout method suitable for fluidized mining of coal resources
GB201902094D0 (en) Improvements relating to underground mining
ZA201808611B (en) Production well apparatus for underground coal gasification and use thereof
GB201812808D0 (en) Shearing system for longwall mining
ZA202006725B (en) Monitoring system for bearing compression rate of filling body in coal mine goaf and monitoring method thereof
ZA201801264B (en) Lubricated cartridge for hydraulic mining shovel track
ZA201604147B (en) Dynamic state monitor of roof for filling coal mining goaf in a comprehensive and mechanized way
GB201807373D0 (en) Rock bolts
ZA202302570B (en) Combined mining method for underground mines
EP3803053C0 (en) Rock bolting rig and method at rock bolting rig
GB202008460D0 (en) An equipment for automatically mining coal
EP3115547A4 (en) Method for extracting methane from coal beds and from penetrating rock enclosing a coal bed
ZA201808355B (en) Coal mine underground bag-shaped filling structure and method of using same
ZA202007499B (en) Block lock for round steel chains for mining
ZA201905483B (en) Method of underground mining
GB201816320D0 (en) Underground location method in coal mine based on optical communication technology