CN111206949B - 一种煤矿掘进的前探梁结构 - Google Patents
一种煤矿掘进的前探梁结构 Download PDFInfo
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- CN111206949B CN111206949B CN202010105383.4A CN202010105383A CN111206949B CN 111206949 B CN111206949 B CN 111206949B CN 202010105383 A CN202010105383 A CN 202010105383A CN 111206949 B CN111206949 B CN 111206949B
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- 239000003245 coal Substances 0.000 title claims abstract description 17
- 230000005641 tunneling Effects 0.000 title abstract description 10
- 230000007306 turnover Effects 0.000 claims abstract description 39
- 238000003466 welding Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
- E21D19/04—Provisional protective covers for working space for use in drifting galleries
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CN202010105383.4A CN111206949B (zh) | 2020-02-20 | 2020-02-20 | 一种煤矿掘进的前探梁结构 |
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CN202010105383.4A CN111206949B (zh) | 2020-02-20 | 2020-02-20 | 一种煤矿掘进的前探梁结构 |
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CN111206949A CN111206949A (zh) | 2020-05-29 |
CN111206949B true CN111206949B (zh) | 2021-06-04 |
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CN202010105383.4A Expired - Fee Related CN111206949B (zh) | 2020-02-20 | 2020-02-20 | 一种煤矿掘进的前探梁结构 |
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Families Citing this family (1)
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CN114263194B (zh) * | 2022-02-17 | 2023-10-20 | 中交四航局第三工程有限公司 | 一种下穿高速铁路修建用支护结构 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CA2886073C (en) * | 2012-09-27 | 2021-04-20 | Centre For Excellence In Mining Innovation | Drill and blast method and apparatus for the same |
CN206668305U (zh) * | 2017-04-11 | 2017-11-24 | 义马煤业集团孟津煤矿有限责任公司 | 一种煤矿综采工作面液压升降台 |
CN208669341U (zh) * | 2018-06-06 | 2019-03-29 | 黄胜坚 | 一种巷道掘进临时支护装置 |
CN208845204U (zh) * | 2018-08-21 | 2019-05-10 | 山西凌志达煤业有限公司 | 一种支护隧道凹凸不平岩体面的可折叠超前支护装置 |
CN109707430B (zh) * | 2019-03-12 | 2024-03-19 | 辽宁工程技术大学 | 一种巷道掘进工作面临时支护设备及使用方法 |
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PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CB03 | Change of inventor or designer information |
Inventor after: Yan Shizhong Inventor after: Zheng Changhao Inventor after: Zhang Rongfa Inventor before: Zhang Rongfa |
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CB03 | Change of inventor or designer information | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20210518 Address after: 271200 Room 202, unit 3, building 10, Xingfu Road, Dongdu Town, Xintai City, Tai'an City, Shandong Province Applicant after: Yan Shizhong Address before: School of modern science and technology, China University of metrology, 168 Xueyuan street, Jianggan District, Hangzhou, Zhejiang Province, 310018 Applicant before: Zhang Rongfa |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210604 |
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