CN1948714A - Method of construction supporting protection for mine under ground tunnel surrounding rock broken - Google Patents
Method of construction supporting protection for mine under ground tunnel surrounding rock broken Download PDFInfo
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- CN1948714A CN1948714A CN 200610107381 CN200610107381A CN1948714A CN 1948714 A CN1948714 A CN 1948714A CN 200610107381 CN200610107381 CN 200610107381 CN 200610107381 A CN200610107381 A CN 200610107381A CN 1948714 A CN1948714 A CN 1948714A
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- surrounding rock
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Abstract
This invention discloses a kind of construction timbering method for the wall rock fracture zone of the mine underground roadway. It adopts the combine timbering of the drilling hole, blasting, mucking out, anchoring the network, setting steel-shelf (1), gunite in the work surface. The character is in that: before drilling hole in the work surface, a group of advance metal skeleton (2) is inserted in to the dig terrane parallel along the outer limits of the permanent bracket in the forefront of the roadway head as the elevation of 6 degree to 8 degree. After inserting one group of the metal skeleton, the roadway construction completes 2 meters and finishes one timbering period. The space between the advance metal skeleton is less than 200mm. the advance metal skeleton is made of steel pipe and the front end is cut into the point. Constructing operation is simple which has reduced the labor intensity and improved operating environment, especially in the over geological conditions changing band of the roadway such as fault or broken band, it has the temporary supporting role to avoid the slide occurred, cave-ins and personal injury incident of the roadway during construction, so it can get the larger economic and security benefits.
Description
Technical field:
The present invention relates to a kind of supporting method of mine laneway, relate in particular to a kind of method of construction supporting protection for mine under ground tunnel surrounding rock broken.
Background technology:
In mine working rock crusher belt construction, the supporting measure that is adopted is as anchor net+U29 type steel shed+whitewashing combined supporting, this support pattern is to implement after tunnelling, therefore, wall caving, roof fall accident not only easily taking place, also may cause personal injury accidents, has also increased difficulty of construction, labor strength, the waste support material influences problems such as construction speed and work efficiency.
Summary of the invention: for the wall caving that solves protection for mine under ground tunnel surrounding rock broken construction existence, the accident that roof fall caused, guarantee the reliability of zone of fracture construction safety, the purpose of this invention is to provide a kind of simple, easy row, safety, effectively prevent that above-mentioned accident from the method for the construction supporting protection for mine under ground tunnel surrounding rock broken of roadway construction speed and work efficiency taking place, can also improve simultaneously.
Technical scheme of the present invention realizes in the following manner:
A kind of method of construction supporting protection for mine under ground tunnel surrounding rock broken, its adopt carry out perforating at work plane, blow out, muck removal, anchor net, setting steel-shelf, whitewashing combined supporting; Wherein, before work plane was carried out perforating, the permanent support outer of meeting head on to construct foremost along the tunnel with one group of leading metallic framework was with 6 °～8 ° elevations angle, and parallel squeezing into waited to dig in the rock stratum, every dozen of one group of leading metallic framework, tunnel are constructed forward 2 meters and are finished a supporting circulation; Leading metallic framework spacing≤200mm, leading metallic framework employing steel pipe is processed into, front cutting becomes cone tip shape.
Leading metallic framework 2 length are 2.5～3 meters.
Leading metallic framework 2 protruded lengths are no more than edge in the permanent support, can carry out other operation construction again after making a call to one group of skeleton, every dozen of one group of skeleton, and construct forward 2 meters and finish a supporting and circulate in the tunnel.
Good effect of the present invention is:
Constructing operation was both convenient and simple, alleviated labor strength, improved operating environment again, particularly cross in the tunnel geological conditions change band as: tomography or zone of fracture etc. plays the temporary lining effect, avoided the tunnel generation of wall caving, roof fall and personal injury accident to take place, can obtain bigger economic benefit and safety benefit in construction period.
Description of drawings:
Fig. 1 is one group of leading metallic framework of drift section in the invention and the structural representation between the U type steel shed.
Fig. 2 is the side-looking structural representation of Fig. 1.
Fig. 3 is the plan structure schematic diagram of Fig. 1.
Fig. 4 is leading metallic framework structural representation in the invention
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
Embodiment one: the present invention crosses application in the tomography, position of fault: 11.2m place chance F before the T47 measuring point at wing rail road, north, colliery, the positive imperial company outskirts of a town of coal group forever main haulage roadway
38Tomography is inclined to 130 °, 65 ° at inclination angle, and drop 20m, base plate sees two
2Coal.The 64.2m place runs into F again before the T47 measuring point
43Tomography is inclined to 2 °, 55 ° at inclination angle, drop 15m.Drift section specification: stalk semicircular arch section, clear span 4.6m, clear height 3.8m; Cross tomography and adopt leading metallic framework+anchor net+U29 type steel shed+whitewashing combined supporting: anchor pole adopts Φ 20 * 2200mm high strength anchor bar, and pallet adopts 150 * 150 * 8mm; Between group apart from 800 * 800mm; Full section is hung steel mesh reinforcement, and net is made by the weldering of Φ 6.5mm reinforcing bar, grid 100 * 100mm, and net sheet specification 1800 * 1300mm, net oblique cut grafting length 150mm is every the 300mm bifilar colligation of 12# iron wire; The steel canopy adopts the U29 type steel shed, and canopy is apart from 700mm; Spray thick 100mm.As seen from Figure 4: leading metallic framework adopts 1 o'clock steel pipe to make 3 meters long as temporary lining, by Fig. 1, Fig. 3 as can be seen: leading metallic framework spacing is not more than 200mm, be it can also be seen that by Fig. 1, Fig. 2: leading metallic framework is met head on foremost U29 type steel shed support 1 outer with 6 ° of elevations angle along the tunnel, parallel squeezing into waited to dig in the rock stratum, protruded length is no more than edge in the U29 type steel shed support, make a call to can carry out the work plane perforating behind one group of leading metallic framework, blow out, operations such as muck removal, anchor net, frame U29 type steel shed construct; Every dozen of one group of skeleton, tunnel are constructed forward 2 meters and are finished a supporting circulation.Wing rail road, north main haulage roadway uses this support technology construction to pass through tomography smoothly for 180 meters, wall caving, top board roof fall accident have been avoided, save support material and manpower consumptions such as handling wall caving, the employed mine timber of roof fall accident, the annual saving is worth more than the units up to a million; Stopped personal injury accident, safety benefit is remarkable; It is flat to have improved the single water inlet in tunnel, advances 50m by original month and brings up to 80m by using this support technology, and single water inlet is flat to have improved 160% than originally; Work efficiency is brought up to 0.222 meter/worker by original 0.133 meter/worker by using this support technology, and work efficiency has improved 167% than originally, improved driving speed, has guaranteed that mine excavation takes over.
Claims (3)
1, a kind of method of construction supporting protection for mine under ground tunnel surrounding rock broken, its adopt carry out perforating at work plane, blow out, muck removal, anchor net, setting steel-shelf (1), whitewashing combined supporting; It is characterized in that: before work plane is carried out perforating, the permanent support outer of meeting head on to construct foremost along the tunnel with one group of leading metallic framework (2) is with 6 °～8 ° elevations angle, parallel squeezing into waits to dig in the rock stratum, every dozen of one group of leading metallic framework, and construct forward 2 meters and finish a supporting circulation in the tunnel; Leading metallic framework spacing≤200mm, leading metallic framework 2 employing steel pipes are processed into, front cutting becomes pointed.
2, the method for construction supporting protection for mine under ground tunnel surrounding rock broken according to claim 1 is characterized in that: leading metallic framework (2) length is 2.5～3 meters.
3, the method for construction supporting protection for mine under ground tunnel surrounding rock broken according to claim 1, it is characterized in that: leading metallic framework (2) protruded length is no more than edge in the permanent support, every dozen of one group of skeleton, tunnel are constructed forward 2 meters and are finished a supporting circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610107381 CN1948714A (en) | 2006-11-06 | 2006-11-06 | Method of construction supporting protection for mine under ground tunnel surrounding rock broken |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610107381 CN1948714A (en) | 2006-11-06 | 2006-11-06 | Method of construction supporting protection for mine under ground tunnel surrounding rock broken |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1948714A true CN1948714A (en) | 2007-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610107381 Pending CN1948714A (en) | 2006-11-06 | 2006-11-06 | Method of construction supporting protection for mine under ground tunnel surrounding rock broken |
Country Status (1)
| Country | Link |
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| CN (1) | CN1948714A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155246A (en) * | 2011-05-16 | 2011-08-17 | 安徽省皖北煤电集团有限责任公司百善煤矿 | Temporary support defense network device |
| CN102312676A (en) * | 2011-09-26 | 2012-01-11 | 山西晋城无烟煤矿业集团有限责任公司 | Construction method for high face mining support removing passage under complicated geological condition |
| CN108222984A (en) * | 2018-01-04 | 2018-06-29 | 晋城煤炭规划设计院 | The advance support structure of the loose coal road of breaking roof |
| CN108798737A (en) * | 2018-08-27 | 2018-11-13 | 邓立杰 | A kind of movable outstanding shield bone plate supporting construction in tunnel |
| CN115030746A (en) * | 2022-06-17 | 2022-09-09 | 山东黄金矿业科技有限公司深井开采实验室分公司 | Metal mine tunneling grouting support method |
| CN117145523A (en) * | 2023-10-31 | 2023-12-01 | 煤炭工业太原设计研究院集团有限公司 | Sylvite inclined shaft mudstone section roof-falling treatment reinforcing structure and method |
-
2006
- 2006-11-06 CN CN 200610107381 patent/CN1948714A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155246A (en) * | 2011-05-16 | 2011-08-17 | 安徽省皖北煤电集团有限责任公司百善煤矿 | Temporary support defense network device |
| CN102312676A (en) * | 2011-09-26 | 2012-01-11 | 山西晋城无烟煤矿业集团有限责任公司 | Construction method for high face mining support removing passage under complicated geological condition |
| CN108222984A (en) * | 2018-01-04 | 2018-06-29 | 晋城煤炭规划设计院 | The advance support structure of the loose coal road of breaking roof |
| CN108798737A (en) * | 2018-08-27 | 2018-11-13 | 邓立杰 | A kind of movable outstanding shield bone plate supporting construction in tunnel |
| CN108798737B (en) * | 2018-08-27 | 2023-09-12 | 邓立杰 | Movable suspension bone plate supporting structure for roadway |
| CN115030746A (en) * | 2022-06-17 | 2022-09-09 | 山东黄金矿业科技有限公司深井开采实验室分公司 | Metal mine tunneling grouting support method |
| CN117145523A (en) * | 2023-10-31 | 2023-12-01 | 煤炭工业太原设计研究院集团有限公司 | Sylvite inclined shaft mudstone section roof-falling treatment reinforcing structure and method |
| CN117145523B (en) * | 2023-10-31 | 2023-12-26 | 煤炭工业太原设计研究院集团有限公司 | Sylvite inclined shaft mudstone section roof-falling treatment reinforcing structure and method |
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