CN106337687B - Mine slant chute portable sectional supporting method - Google Patents
Mine slant chute portable sectional supporting method Download PDFInfo
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- CN106337687B CN106337687B CN201510400186.4A CN201510400186A CN106337687B CN 106337687 B CN106337687 B CN 106337687B CN 201510400186 A CN201510400186 A CN 201510400186A CN 106337687 B CN106337687 B CN 106337687B
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Abstract
The present invention relates to mine slant chute portable sectional supporting methods comprising following steps: (1), according to actual condition of construction, carrying out calculating analysis to the stability of the borehole wall of drop shaft, determine support form；(2), join lane every 15 meters of one drop shafts of cutting downwards in the well head of slant chute；(3), it is cut with backfill and fills slant chute, until the surface of backfill quarrel is away from well head 2m, backfill quarrel upper surface laying plank, construction personnel step down in progress supporting construction operation on plank in well；(4), muck removal is carried out in the drop shaft connection lane of next segmentation, until the quarrel position in drop shaft declines 2m；(5), construction personnel carries out next supporting construction operation；(6), step (4)~(5) are repeated, until fulfiling assignment.The present invention discloses method for protecting support and has the advantages that quarrel is filled out in (1), drop shaft, puts quarrel, graded supporting by several times, and supporting circulation drops to drop shaft supporting with quarrel face and completes；(2), safety coefficient is high.
Description
Technical field
The invention belongs to energy extraction fields, and in particular to mine slant chute portable sectional supporting method.
Background technique
Currently, domestic underground mine is mostly due to rock crusher, construction and supporting operation are difficult, after the completion of ore pass construction, branch
Due to rock crusher during shield, drop shaft Sidewall Surrounding Rock exposed area and space are larger, to operating personnel and construction equipment, equipment
Cause security threat, inconvenience construction.
There are many unfavorable factors during supporting, often result in that the duration is longer, and security risk is more, this constructs to mine safety
Production, and adopt, select etc. each system steady production it is more unfavorable, mine overall efficiency is affected.
Currently, domestic and international large and medium-sized underground mine drop shaft method of support, the mostly method for protecting support such as suspended bulkhead raising method or whole sliding formwork,
This method is suitble to the preferably perfectly straight well supporting of drop shaft Sidewall Surrounding Rock.The slant chute of rock crusher can not be sliding using suspended bulkhead raising method, entirety
Mold technique, and Sidewall Surrounding Rock exposed area is big, inspection sled float stone is difficult, and Sidewall Surrounding Rock slump is larger.
Summary of the invention
Goal of the invention: the present invention has made improvements in view of the above-mentioned problems of the prior art, i.e., the invention discloses mines
Slant chute portable sectional supporting method.
Technical solution: mine slant chute portable sectional supporting method, comprising the following steps:
(1), according to actual condition of construction, according to existing stability of the hill analysis method, to the steady of the borehole wall of drop shaft
It is qualitative to carry out calculating analysis, determine support form；
(2), join lanes every 15 meters of one drop shafts of cutting downwards in the well head of slant chute, drop shaft join lane respectively with slant chute,
Face communicates；
(3), it is cut with backfill and fills slant chute, until the surface of backfill quarrel is away from well head 2m；The upper table of backfill quarrel in well
Face is laid with plank, and construction personnel steps down in progress supporting construction operation on plank；
(4), muck removal is carried out in the drop shaft connection lane of next segmentation using underground trackless scraper, until the quarrel position in drop shaft
Until declining 2m；
(5), construction personnel, which steps down on plank, carries out next supporting construction operation；
(6), step (4)~(5) are repeated, until fulfiling assignment.
Further, the supporting construction operation in step (3) the following steps are included:
(31), inspection sled is carried out to the float stone of the drop shaft borehole wall first,
(32), interim spray concrete supporting is carried out,
(33), after basic security, construction bolthole carries out suspension roof support,
(34), steel mesh is worked out on the drop shaft borehole wall, steel mesh and exposed anchor pole is welded as together；
(35) support template, then the casting concrete into support template will be set up close to the outside of steel mesh, to concrete
After solidification, support template is removed.
Further, the anchor pole in step (33) is the screw-thread steel that diameter 18mm length is 3m.
Further, the anchor pole injects well wall body 2.7m, exposed 0.3m.
Further, the spacing of the steel mesh in step (34) is 0.3m*0.3m.
The utility model has the advantages that mine slant chute portable sectional supporting method disclosed by the invention has the advantages that
(1), drop shaft fills out quarrel, puts quarrel, graded supporting by several times, and supporting circulation drops to drop shaft supporting with quarrel face and completes；
(2), the safe and reliable carry out supporting of the slant chute of rock crusher, not only without influence progress in Bracing Process, and
And it is safe and reliable, realize biggish safety benefit, social benefit.
Detailed description of the invention
Fig. 1 is the schematic diagram of mine slant chute portable sectional supporting method disclosed in specific embodiment；
Wherein:
1- backfill quarrel 2- underground trackless scraper
3- drop shaft joins lane
Specific embodiment:
Detailed description of specific embodiments of the present invention below.
Specific embodiment
As shown in Figure 1, the height in some mine is 35m.
Mine slant chute portable sectional supporting method, comprising the following steps:
(1), according to actual condition of construction, according to existing stability of the hill analysis method, to the steady of the borehole wall of drop shaft
It is qualitative to carry out calculating analysis, determine support form；
(2), it (is segmented every 15 meters of one drop shaft of cutting connection lanes 3 downwards in the well head of slant chute, is divided into+35m points
Section ,+20m segmentation ,+5m segmentation), drop shaft connection lane 3 is communicated with slant chute, ground respectively,
(3), with 1 filling slant chute of backfill quarrel, until 1 surface of backfill quarrel is away from well head 2m, the table in backfill quarrel 1 in well
Face is laid with plank, and construction personnel steps down in progress supporting construction operation on plank；
(4), muck removal is carried out in the drop shaft connection lane 3 that+20m is segmented using underground trackless scraper 2, until the quarrel position in drop shaft
Until declining 2m；
(5), construction personnel, which steps down on plank, carries out next supporting construction operation；
(6), step (4)~(5) are repeated, until fulfiling assignment.
Further, the supporting construction operation in step (3) the following steps are included:
(31), inspection sled is carried out to the float stone of the drop shaft borehole wall first,
(32), interim spray concrete supporting is carried out,
(33), after basic security, construction bolthole carries out suspension roof support,
(34), steel mesh is worked out on the drop shaft borehole wall, steel mesh and exposed anchor pole is welded as together；
(35) support template, then the casting concrete into support template will be set up close to the outside of steel mesh, to concrete
After solidification, support template is removed.
Further, the anchor pole in step (33) is the screw-thread steel that diameter 18mm length is 3m.
Further, the anchor pole injects well wall body 2.7m, exposed 0.3m.
Further, the spacing of the steel mesh in step (34) is 0.3m*0.3m.
Embodiments of the present invention are elaborated above.But present invention is not limited to the embodiments described above,
Technical field those of ordinary skill within the scope of knowledge, can also do without departing from the purpose of the present invention
Various change out.
Claims (1)
1. mine slant chute portable sectional supporting method, which comprises the following steps:
(1), according to actual condition of construction, according to existing stability of the hill analysis method, to the stability of the borehole wall of drop shaft
Calculating analysis is carried out, determines support form；
(2), join lanes every 15 meters of one drop shafts of cutting downwards in the well head of slant chute, drop shaft join lane respectively with slant chute, ground phase
It is logical,
(3), it is cut with backfill and fills slant chute, until the surface of backfill quarrel is away from well head 2m, backfill quarrel upper surface is spread in well
If plank, construction personnel steps down in progress supporting construction operation on plank；
The supporting construction operation the following steps are included:
(31), inspection sled is carried out to the float stone of the drop shaft borehole wall first,
(32), interim spray concrete supporting is carried out,
(33), after basic security, construction bolthole carries out suspension roof support, and the anchor pole is the screw thread that diameter 18mm length is 3m
Steel, the anchor pole inject well wall body 2.7m, exposed 0.3m,
(34), steel mesh is worked out on the drop shaft borehole wall, steel mesh and exposed anchor pole is welded as together, the spacing of steel mesh is
0.3m*0.3m,
(35) support template, then the casting concrete into support template will be set up close to the outside of steel mesh, to concrete setting
Afterwards, support template is removed；
(4), muck removal is carried out in the drop shaft connection lane of next segmentation using underground trackless scraper, until the quarrel position decline in drop shaft
Until 2m；
(5), construction personnel, which steps down on plank, carries out next supporting construction operation；
(6), step (4)~(5) are repeated, until fulfiling assignment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510400186.4A CN106337687B (en) | 2015-07-10 | 2015-07-10 | Mine slant chute portable sectional supporting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510400186.4A CN106337687B (en) | 2015-07-10 | 2015-07-10 | Mine slant chute portable sectional supporting method |
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| Publication Number | Publication Date |
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| CN106337687A CN106337687A (en) | 2017-01-18 |
| CN106337687B true CN106337687B (en) | 2019-05-17 |
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| CN201510400186.4A Active CN106337687B (en) | 2015-07-10 | 2015-07-10 | Mine slant chute portable sectional supporting method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575234B (en) * | 2017-09-07 | 2019-02-26 | 长沙有色冶金设计研究院有限公司 | A kind of deep-well support design method |
| CN111852482B (en) * | 2020-07-31 | 2022-04-01 | 湖南科技大学 | Construction method of ore crusher foundation of slip-breaking system engineering below 40m |
| CN113685226B (en) * | 2021-07-20 | 2022-03-29 | 北京科技大学 | Layered filling body protection device and method suitable for upward horizontal access filling method |
| CN113969791A (en) * | 2021-11-01 | 2022-01-25 | 唐山开滦建设(集团)有限责任公司 | Construction method for reinforcing and repairing damaged coal bunker at bottom of well |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101705814B (en) * | 2009-12-03 | 2013-07-31 | 中国华冶科工集团有限公司 | Advancing direction measurement method of vertical and slant orepasses |
| CN101967984B (en) * | 2010-09-03 | 2012-11-28 | 蒋欣源 | Deep well tunnel cable anchor rigid-flexible coupling support and surrounding rock overall reinforced support method |
| CN102953733A (en) * | 2011-08-19 | 2013-03-06 | 彭康 | Central outside-vein house pillar type combined crosscut two-end inside-vein continuous segment filling mining method |
| CN103061788A (en) * | 2013-01-11 | 2013-04-24 | 江苏建筑职业技术学院 | Loose broken tunnel top plate reinforcing and supporting method |
| CN103628878B (en) * | 2013-12-16 | 2015-08-12 | 山东科技大学 | Under breaking surrounding rock ore body to route layering without segmentation tunnel filling mining methods |
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