CN109854249A - It is a kind of for extra deep shaft formation pre processing around the lane Jing Huan method - Google Patents
It is a kind of for extra deep shaft formation pre processing around the lane Jing Huan method Download PDFInfo
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- CN109854249A CN109854249A CN201910160767.3A CN201910160767A CN109854249A CN 109854249 A CN109854249 A CN 109854249A CN 201910160767 A CN201910160767 A CN 201910160767A CN 109854249 A CN109854249 A CN 109854249A
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Abstract
The invention discloses a kind of for extra deep shaft formation pre processing around the lane Jing Huan method, is mainly used for carrying out formation pre processing when vertical driving and masonry construction, super/special deep shaft construction of especially 1200 meters of depth or more magnitudes；Its step includes: that self well digging is constructed to need to improve stratum top certain altitude；Determine the cutting radius and optimal crosssection in the ring-like tunnel laid centered on wellbore centre point；Dig contact crossdrift, connection pit shaft, annular tunnel and measure chamber；Ring-like tunnel is dug around pit shaft, stratum improvement is formed and administers space, the engineering methods techniques such as conventional slip casting method, freezing process are combined in the space；Corresponding measure chamber is set.The present invention solves in the prior art the problem of drilling ratio is big, at high cost, the stratum that can be effectively controlled of improvement operation is small, and means are single, poor for applicability and low efficiency in vain.Construction efficiency is greatly improved in it, reduces construction cost.
Description
Technical field
The present invention relates to shaft construction technical fields, and in particular to it is a kind of for extra deep shaft formation pre processing around well ring
Lane method.It is primarily adapted for use in the extra deep shaft construction of 1200 meters of depth or more magnitudes.
Background technique
China's underground mineral resources exploitation is with a long history, is buried using vertical shaft hoisting or lowering device, material and personnel
The main expanding design in mine.In recent years, mine is obvious to the development of big depth direction, and domestic vertical has once dug depth gradually
Develop to 2000 meters of orders.Primary pick is built into well depth by " extra deep shaft construction safety technical specification " (AQ2062-2018)
Vertical of the degree greater than 1200 meters is defined as extra deep shaft.The geological problems opposition such as mine water, High-geotemperature, the highland pressure of extra deep shaft
The harm of well construction construction is further prominent, there is an urgent need to develop a kind of efficient formation pre processing technology, with to disaster stratum into
Row improvement is administered.
It include at present that ground pretreatment and working face pre-process two methods using the formation pre processing method of comparative maturity.
Wherein ground method for pretreating carries out slip casting or freezing to improve by applying drilling on ground to disaster stratum, this method investment is big,
At high cost, invalid drilling ratio is big, and can not verify in time to improved effect；And working face method for pretreating need to occupy sinking shaft
Working face, because that must stop occupying the mine construction duration due to operation is built in pick when improvement construction, meanwhile, bore angle is big, improvement operation can
The formation volumes effectively controlled are small, and without its still its effective means in addition to slip casting, means are single, poor for applicability.
Summary of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of for extra deep shaft formation pre processing around well ring
Lane method, to solve in the prior art, drilling ratio in vain is big, at high cost, improvement operation can be effectively controlled that formation volumes are small, change
The technical issues of good means are single, poor for applicability and low efficiency.
In order to solve the above-mentioned technical problem, realize that the object of the invention, the present invention adopt the following technical scheme that: one kind is for surpassing
Deep vertical formation pre processing around the lane Jing Huan method, include the following steps:
Step 1 constructs self well digging to need to improve stratum top certain altitude；
Step 2 determines the cutting radius and optimal crosssection in the ring-like tunnel laid centered on wellbore centre point；
Step 3 digs contact crossdrift, to connection pit shaft, step 4 annular tunnel and step 5 measure chamber；
Step 4 digs ring-like tunnel around pit shaft, forms stratum improvement and administers space；
Corresponding measure chamber is arranged in step 5.
Further, improvement stratum top certain altitude is needed to be by characteristics of surrounding rock, construction speed, change described in step 1
Good means, protection rock cap combined factors determine.
It further, need to be according to stratum around the cutting radius of Jing Huanxiang, optimal crosssection technical characteristic described in step 2
Preprocess method, construction equipment setting geometric dimension and process range combined factors determine.
Further, contact crossdrift structure feature described in step 3 is according to stratum improved equipment outer dimension, annular
Tunnel and chamber arrangement mode and permanent works feature combined factors determine.
Further, it is required according to design and construction, the improvement of stratum described in step 4 is administered in space can be using drilling
Slip casting, The Small Well precipitation, steel sheet pile, diaphragm wall, refrigeration cool-down freeze or dig imperial pressure hole mode, to deep formation water, soft
Rock crushed zone, the region of high stress or highland warm area are handled, and provide good construction environment for pit shaft cutting.
Further, in step 5 measure chamber whether dig will according to engineering structure, administration way and measures engineering at
Originally comprehensively consider decision, can be arranged in the measure chamber reservoir, mud pit, refrigeration plant, drainage equipment, grouting equipment and
Safety devices equipment.
Compared with prior art, the invention has the benefit that
This method by the ring-like tunnel laid centered on wellbore centre point, measure chamber and the contact crossdrift for being connected to them,
And form stratum improvement in ring-like tunnel and administer in space, using slip casting method, freezing process, precipitation method, campshed method, tremie method, company
The works such as rope, classification power transformation are helped at the engineering methods such as continuous wall method, milling digging method, destressing method and refrigeration cool-down, relay draining, sectionalized ventilation, middle part
Skill carries out formation pre processing and disaster prevention is administered, to reach improved means diversification, enhancing engineering method applicability, improve improvement
Construction efficiency, the purpose for expanding improvement effective range.In short, the present invention is at low cost, and it is high-efficient, to extra deep shaft formation pre processing
Effect is best.
Detailed description of the invention
Fig. 1 is floor plan of the invention.
Fig. 2 is facade layout drawing of the invention.
In figure: 1, around Jing Huanxiang；2, No. 1 vertical；3, No. 2 vertical；4, crossdrift is got in touch with；5, measure chamber；6- country rock, 7, brill
Hole；8, rock stratum to be processed.
Specific embodiment
Invention is further explained with example with reference to the accompanying drawing.
As shown in Figure 1 and Figure 2, the cutting depth of No. 1 vertical 2 and No. 2 vertical 3 at project scene is more than 1200 meters, in conjunction with
In conjunction with field operation complex environment, we are taken for extra deep shaft formation pre processing for design drawing and Design of Construction Organization
Around the lane Jing Huan method, steps are as follows:
Step 1 constructs the self well digging of No. 1 vertical 2 and No. 2 vertical 3 to that need to improve stratum top certain altitude, such as Fig. 2 institute
Show, according to permanent works structure type, Design of Construction Organization and exploration 6 characteristic of country rock determines that stratum top need to be improved centainly high
The numerical value of degree, generally 10~40 meters or so.I.e. according to characteristics of surrounding rock, construction speed, improved means, protection rock cap combined factors
It determines；
Step 2 determines the cutting half in the annular tunnel 1 laid centered on the wellbore centre point of No. 1 vertical 2 and No. 2 vertical 3
Diameter and optimal crosssection form, according to stratum modification method, improved equipment type selecting and the comprehensive determination of expected process range, general feelings
Under condition, for annular head-room at 5 meters or so, width can be skene arch, basket handle arch or rectangular cross section at 3 meters or so；
Step 3, according to improved equipment outer dimension, annular tunnel 1 and 5 arrangement of measure chamber and permanent works feature,
It determines contact 4 cross dimensions of crossdrift and form, is then open from pit shaft, dig contact crossdrift 4 to annular tunnel 1 or measure chamber
5 design positions；
Step 4 is open from crossdrift 4 is got in touch with, and digs ring-like tunnel 1 around the pit shaft of No. 1 vertical 2 and No. 2 vertical 3 respectively, is formed
Space is administered in stratum improvement；It is required according to designing and constructing, improveing to administer in space on stratum can use Drilling guide hole, cutting small
Well is implanted into piling bar, constructs diaphragm wall, refrigeration cool-down or freezes or dig imperial pressure hole mode, broken to deep formation water, soft rock
Band, the region of high stress or highland warm area are handled, and provide good construction environment for pit shaft cutting.Because bored grouting method has
Apply the advantages such as simple, water reinforcement effect is good and passed through frequently with.
Corresponding measure chamber 5 is arranged in step 5 between the pit shaft of No. 1 vertical 2 and No. 2 vertical 3；Whether measure chamber 5
Cutting will comprehensively consider decision according to engineering structure, modification method and measures engineering cost.Apply settable reservoir in chamber 5,
One or more kinds of facilities in mud pit, refrigeration plant, drainage equipment, grouting equipment and safety devices equipment etc..It is infused using drilling
When slurry processes, the mud circulating systems such as setting mud pit in measure chamber.
By using this method, the reliability of formation pre processing engineering method is improved, enhances stratum improved effect.Dig around
The measures engineering cost of Jing Huanxiang is made thinner because of the increase of mine shaft depth, and mine shaft depth is bigger, is pre-processed compared to ground
Or modification methods, the economy, the technical advantage of this method such as working face pretreatment are more obvious.
This method both can be applied to independent shaft construction, can also be applied to vertical group construction.Especially to extra deep shaft
Layer pretreatment advantage is more obvious.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
Claims (6)
1. it is a kind of for extra deep shaft formation pre processing around the lane Jing Huan method, include the following steps:
Step 1 constructs self well digging to need to improve stratum top certain altitude；
Step 2 determines the cutting radius and optimal crosssection in the ring-like tunnel laid centered on wellbore centre point；
Step 3 digs contact crossdrift, connection pit shaft, step 4 annular tunnel and step 5 measure chamber；
Step 4 digs ring-like tunnel around pit shaft, forms stratum improvement and administers space；
Corresponding measure chamber is arranged in step 5.
2. it is according to claim 1 it is a kind of for extra deep shaft formation pre processing around the lane Jing Huan method, it is characterised in that:
Needed described in step 1 improvement stratum top certain altitude be by characteristics of surrounding rock, construction speed, improved means, protection rock cap because
Element is comprehensive to be determined.
3. it is according to claim 1 it is a kind of for extra deep shaft formation pre processing around the lane Jing Huan method, it is characterised in that:
It need to be according to stratum modification method, improved equipment around the cutting radius of Jing Huanxiang, optimal crosssection technical characteristic described in step 2
Type selecting and expected process range combined factors determine.
4. it is according to claim 1 it is a kind of for extra deep shaft formation pre processing around the lane Jing Huan method, it is characterised in that:
Contact crossdrift structure feature described in step 3 is according to stratum improved equipment outer dimension, annular tunnel and chamber arrangement mode
And permanent works feature combined factors determine.
5. it is according to claim 1 it is a kind of for extra deep shaft formation pre processing around the lane Jing Huan method, it is characterised in that:
It is required according to design and construction, the improvement of stratum described in step 4, which is administered in space, can use Drilling guide hole, dig The Small Well, implantation
Piling bar constructs diaphragm wall, refrigeration cool-down or freezes or dig imperial pressure hole mode, to deep formation water, soft rock crushed zone, Gao Ying
Power area or highland warm area are handled, and provide good construction environment for pit shaft cutting.
6. it is according to claim 1 it is a kind of for extra deep shaft formation pre processing around the lane Jing Huan method, it is characterised in that:
Whether measure chamber, which is dug, in step 5 to comprehensively consider decision according to engineering structure, administration way and measures engineering cost, certainly
Surely the measure chamber dug will be required according to design and construction, and reservoir, mud pit, refrigeration can be arranged in the measure chamber
It stands, drainage equipment, grouting equipment and safety devices equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910160767.3A CN109854249A (en) | 2019-03-04 | 2019-03-04 | It is a kind of for extra deep shaft formation pre processing around the lane Jing Huan method |
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| CN201910160767.3A CN109854249A (en) | 2019-03-04 | 2019-03-04 | It is a kind of for extra deep shaft formation pre processing around the lane Jing Huan method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635748A (en) * | 2022-02-25 | 2022-06-17 | 华亭煤业集团有限责任公司 | Shaft sinking water damage prevention method |
| CN114635697A (en) * | 2022-02-25 | 2022-06-17 | 中国矿业大学 | Pre-grouting treatment method for water damage of shaft well construction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191223857A (en) * | 1912-10-18 | 1913-01-23 | Evence Coppee Fils | Improvements in or relating to the Congealing of Shifting Sand in the Sinking of Mine Shafts. |
| CN105545330A (en) * | 2016-02-26 | 2016-05-04 | 河北钢铁集团矿业有限公司 | Water prevention and control process in construction of metallurgical underground mining ore pass fragmenting system |
| CN108825247A (en) * | 2018-06-20 | 2018-11-16 | 北京城建集团有限责任公司 | A kind of flare sidewall horizontal for 8 pilot tunnel PBA engineering methods makes bottom basin shape and freezes sealing engineering method |
| CN109026010A (en) * | 2018-08-13 | 2018-12-18 | 中煤能源研究院有限责任公司 | A kind of mine seepage well slip casting type sinking shaft construction method |
-
2019
- 2019-03-04 CN CN201910160767.3A patent/CN109854249A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191223857A (en) * | 1912-10-18 | 1913-01-23 | Evence Coppee Fils | Improvements in or relating to the Congealing of Shifting Sand in the Sinking of Mine Shafts. |
| CN105545330A (en) * | 2016-02-26 | 2016-05-04 | 河北钢铁集团矿业有限公司 | Water prevention and control process in construction of metallurgical underground mining ore pass fragmenting system |
| CN108825247A (en) * | 2018-06-20 | 2018-11-16 | 北京城建集团有限责任公司 | A kind of flare sidewall horizontal for 8 pilot tunnel PBA engineering methods makes bottom basin shape and freezes sealing engineering method |
| CN109026010A (en) * | 2018-08-13 | 2018-12-18 | 中煤能源研究院有限责任公司 | A kind of mine seepage well slip casting type sinking shaft construction method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635748A (en) * | 2022-02-25 | 2022-06-17 | 华亭煤业集团有限责任公司 | Shaft sinking water damage prevention method |
| CN114635697A (en) * | 2022-02-25 | 2022-06-17 | 中国矿业大学 | Pre-grouting treatment method for water damage of shaft well construction |
| CN114635697B (en) * | 2022-02-25 | 2023-01-24 | 中国矿业大学 | Pre-grouting treatment method for water damage of shaft well construction |
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Application publication date: 20190607 |