CN107448143A - Broken rock mass dynamic boring method - Google Patents
Broken rock mass dynamic boring method Download PDFInfo
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- CN107448143A CN107448143A CN201710591477.5A CN201710591477A CN107448143A CN 107448143 A CN107448143 A CN 107448143A CN 201710591477 A CN201710591477 A CN 201710591477A CN 107448143 A CN107448143 A CN 107448143A
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- drilling
- rock
- rock mass
- mass
- depth
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
Abstract
The invention provides a kind of Broken rock mass dynamic boring method, its step is：The crushed zone geological information that collection mapping and radar detection are arrived, determines dynamic boring region；Drilled since the dynamic boring region of determination, and drilling parameter is recorded in drilling operating record sheet；According to the drilling parameter in drilling operating record sheet, differentiate drilling along the rock-mass quality distribution situation on depth direction；An optional direction is drilled in drilling area planar, according to the rock-mass quality distribution situation in adjacent drilling depth direction, determines next bore position, depth and direction；Finally other directions on drilling plane are drilled, to drilling covering outlet area.Broken rock mass dynamic boring method provided by the invention, it can accurately determine the geological condition inside palisades.
Description
Technical field
The present invention relates to underground cavern excavation technology field, more particularly to a kind of Broken rock mass dynamic boring method.
Background technology
Large Underground cave depot excavation frequently suffers from crushed zone tomography and passed through, because the situation inside rock mass is ever-changing extremely
Complexity, it is difficult to the accurate geological condition described inside palisades by existing technological meanses.In traditional work, often using complete
The mode that section is evenly arranged injected hole carries out bored grouting, as shown in Figure 2.But due to the crushed zone and leakage passage of rock mass
It is typically hidden within below palisades surface, the plane of disruption and EXIT POINT position rear that rock mass surface is observed are not often real
Leakage passage, as shown in Figure 3 and Figure 4.Therefore, geology inside palisades is determined by the way of tunneling boring is evenly arranged injected hole
The method workload of situation is big, and efficiency is low, it is often more important that the fresh rock body drilled outside crushed zone can usually be destroyed originally
Complete fresh rock mass, influence rock mass strength or even form new leakage passage, it is final determine result often it is unsatisfactory with it is accurate
Really.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of rock mass that can accurately determine geological condition inside palisades
Crushed zone dynamic boring method.
In order to solve the above technical problems, the invention provides a kind of Broken rock mass dynamic boring method,
Comprise the following steps：
The crushed zone geological information that step 10, collection mapping and radar detection are arrived, determines dynamic boring region；
Step 20, first hole is bored since the dynamic boring region of determination, and drilling parameter is recorded in drilling operating
In record sheet；
Step 30, the drilling parameter in drilling operating record sheet, differentiate the rock-mass quality point on drilling depth direction
Cloth situation；
After the completion of step 40, first drilling, follow-up drilling can be drilled in an optional direction in drilling area planar,
According to the rock-mass quality distribution situation in adjacent drilling depth direction, next bore position, depth and direction are determined；
Step 50, finally other directions in drilling area planar are drilled according to the method described above, covered out to drilling
Aqua region.
Further, the drilling parameter includes time, bit freezing parameter, rock mass water outlet parameter used in every section of drilling.
Further, the method that first hole is bored since the dynamic boring region of determination is taken out of if crushing
Water unobvious, then drilled since crushed zone one end of palisades exposure, obvious EXIT POINT carried if broken, using EXIT POINT as
Center proceeds by drilling around EXIT POINT.
Further, it is described to differentiate that drilling is along the determination methods of the rock-mass quality distribution situation on depth direction, creeps into
Used time, short position illustrated that rock mass is soft but does not crush, and drilling duration and not bit freezing illustrate that rock mass is hard, boring duration and card
Bore explanation rock crushing.
Further, it is described to determine that next bore position, depth and the method in direction are, for the good portion of rock-mass quality
Position, the drilling around rock mass is reduced along the adjacent drilling depth direction, for the serious portion of rock-mass quality difference or percolating water
Position, along the adjacent drilling depth direction encryption drilling, drilling depth through rock mass internal fracture band to be defined.
Further, the drilling depth is no more than 6m.Broken rock mass dynamic boring method provided by the invention, passes through
The drilling parameter recorded in boring procedure obtains the quality condition of rock mass inside palisades, is then fed back according to each drilling
Drilling parameter can easily determine out the rock mass situation such as depth, trend, degree of crushing of crushed zone, broken further according to what is judged
Position, depth and the direction of next drilling are adjusted with the rock mass situation such as depth, trend, degree of crushing result dynamic, finally may be used
The invalid drilling arranged with accurately determining the geological condition inside palisades, and effectively reducing on rockmass, is improved
Drilling efficiency and subsequent construction efficiency.
Brief description of the drawings
Fig. 1 is Broken rock mass dynamic boring step schematic diagram provided in an embodiment of the present invention；
Fig. 2 is the drilling schematic diagram that injected hole mode is evenly arranged using tunneling boring that prior art provides；
Fig. 3 is the rock mass surface and internal fracture band relation schematic diagram that prior art provides；
Fig. 4 is the rock mass surface and internal fracture band relation A-A sectional views that prior art provides；
Fig. 5 surrounds EXIT POINT dynamic boring schematic diagram to be provided in an embodiment of the present invention；
Fig. 6 is drilling hole position sequence number floor map provided in an embodiment of the present invention.
Embodiment
Referring to Fig. 1, a kind of Broken rock mass dynamic boring method provided in an embodiment of the present invention, comprise the following steps：
1) the crushed zone geological information of mapping and radar detection etc. is collected first, for mapping and radar
Detection shows that rock-mass quality is preferable and the unconspicuous region of leakage passage, can wouldn't arrange drilling；For reflecting rock-mass quality
Region that is poor and more apparent leakage passage being present, it can primarily determine that to arrange the region of dynamic boring.
2) first hole is bored since the dynamic boring region primarily determined that, if crushed zone water outlet unobvious, from broken
Broken band starts to drill in one end of palisades exposure, and drilling parameter is recorded in drilling operating record sheet；If broken carry
Obvious EXIT POINT, then drilling is proceeded by around EXIT POINT centered on EXIT POINT, and drilling parameter is recorded in drillman
In sequence record sheet.Wherein, drilling parameter includes the parameters such as every drilling time used, bit freezing situation, rock mass water outlet situation.Bore
Hole process record sheet is as shown in table 1.
Table 1
3) drilling parameter in drilling operating record sheet, differentiate that drilling is distributed feelings along the rock-mass quality on depth direction
Condition.If the drilling used time, short position illustrated that rock mass is soft but does not crush, drilling duration and not bit freezing illustrate that rock mass is hard, drilling
Illustrate rock crushing with duration and bit freezing.
4) after the completion of first drilling, follow-up drilling can first any selection a direction be bored successively on drilling plane
Hole, according to the rock-mass quality distribution situation in adjacent drilling depth direction, determine next bore position, depth and direction.Such as：It is right
The drilling around rock mass is reduced in the good position of rock-mass quality, encrypts and bores for the serious position of rock-mass quality difference or percolating water
Hole, drilling depth through rock mass internal fracture band to be defined, but the depth to drill is no more than 6m.
5) finally other directions on drilling plane are drilled according to above-mentioned boring method, to drilling covering exhalant region
Domain.
Now by taking certain case history as an example, a kind of Broken rock mass dynamic boring method provided by the invention is done specifically
It is bright.
The crushed zone geology letter of mapping and radar detection etc. in certain palisades plane internal drilling, need to be now collected first
Breath, the rock-mass quality that mapping and radar detection are shown it is poor and exist the region of more apparent leakage passage primarily determine that for
The position of dynamic boring.Then drill since the dynamic boring position primarily determined that, referring to Fig. 5, fail to understand in crushed zone water outlet
Aobvious place, drills since crushed zone one end of palisades exposure；Broken with obvious EXIT POINT, centered on EXIT POINT
The drilling parameters such as drilling, and the time used in by every section of drilling, bit freezing situation, rock mass water outlet situation are proceeded by around EXIT POINT
It is recorded in drilling operating record sheet table 1.
Referring to Fig. 6, finally reach 40 in the hole number of the palisades plane internal drilling, drilling sequences and numbering are such as Fig. 6 institutes
Show.The drilling parameters such as the time that every section of drilling is used, bit freezing situation, rock mass water outlet situation are recorded in drilling in boring procedure
In process record sheet, the drilling parameter situation finally given is as shown in table 2.
Table 2
Note：The time represents every section of drilling used time, unit mm in table:ss
Find that rock mass is hard in boring procedure referring to table 2,1 and No. 2 holes, and through observing the big pile No. direction Dong Bi in the hole
Dry tack free, therefore need not continue to the big pile No. direction cloth hole on drilling plane.
3-11 hole drillings record shows that rock-mass quality is more uniform, so region all directions can use average cloth hole, Kong Jian
Away from maintaining 0.8m or so.
No. 12 holes and No. 13 holes there are flowing out after brill in a period of time, and rock mass is relatively broken, therefore again dynamic around the hole
State arranges 16-23 holes and is encrypted, and covers the infiltration region.
24-33 holes rock mass is relatively broken, but water outlet is not serious, therefore the region can wouldn't must increase drilling.
Not bit freezing, but the time used in drill footage is shorter during 34-40 hole drillings, illustrate at this rock mass compared with
It is soft.
Inferred according to borehole log, the layer rock mass to drill in section can be divided into three regions, and a-quadrant rock-mass quality is universal
Rigid homogeneous, therefore the arrangement of drilling can be reduced in this region；B area rock mass is relatively broken and drilling depth middle part has bit freezing to show more
As illustrating that this region rock-mass quality is poor, more leakage passage being present, it is necessary to arrange that the drilling of comparatively dense improves slip casting intensity；C
Region rock-mass quality integrality is slightly better than B area, but rock mass is partially soft, illustrates that this region is likely to be the potential area to form seepage
Domain, need to strengthen paying attention to during slip casting.
It should be noted last that above embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although the present invention is described in detail with reference to example, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention, it all should cover
Among scope of the presently claimed invention.
Claims (6)
- A kind of 1. Broken rock mass dynamic boring method, it is characterised in that comprise the following steps：The crushed zone geological information that step 10, collection mapping and radar detection are arrived, determines dynamic boring region；Step 20, first hole is bored since the dynamic boring region of determination, and drilling parameter is recorded in drilling operating record In table；Step 30, the drilling parameter in drilling operating record sheet, differentiate the rock-mass quality distribution feelings on drilling depth direction Condition；After the completion of step 40, first drilling, follow-up drilling can be drilled in an optional direction in drilling area planar, according to The rock-mass quality distribution situation in adjacent drilling depth direction, determines next bore position, depth and direction；Step 50, finally other directions in drilling area planar are drilled according to the method described above, to drilling covering exhalant region Domain.
- 2. Broken rock mass dynamic boring method according to claim 1, it is characterised in that：The drilling parameter includes every Time used in section drilling, bit freezing parameter, rock mass water outlet parameter.
- 3. Broken rock mass dynamic boring method according to claim 1, it is characterised in that：The described dynamic from determination The method that drilling region starts to bore first hole is, if crushed zone water outlet unobvious, from crushed zone in one end of palisades exposure Start to drill, if broken carry obvious EXIT POINT, proceed by drilling around EXIT POINT centered on EXIT POINT.
- 4. Broken rock mass dynamic boring method according to claim 1, it is characterised in that：It is described to differentiate drilling along depth The determination methods of rock-mass quality distribution situation on direction are, the drilling used time, short position illustrated that rock mass is soft but does not crush, and crept into Illustrate that rock mass is hard with duration and not bit freezing, boring duration and bit freezing illustrates rock crushing.
- 5. Broken rock mass dynamic boring method according to claim 1, it is characterised in that：It is described to determine next drilling position Put, the method in depth and direction is, for the good position of rock-mass quality, reduced along the adjacent drilling depth direction around rock mass Drilling, for rock-mass quality difference or the serious position of percolating water, along the adjacent drilling depth direction encryption drilling, drilling Depth through rock mass internal fracture band to be defined.
- 6. Broken rock mass dynamic boring method according to claim 5, it is characterised in that：The drilling depth is no more than 6m。
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| CN2017104686485 | 2017-06-20 | ||
| CN201710468648 | 2017-06-20 |
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| CN107448143A true CN107448143A (en) | 2017-12-08 |
| CN107448143B CN107448143B (en) | 2019-05-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198120A (en) * | 2021-12-14 | 2022-03-18 | 中铁华铁工程设计集团有限公司 | Construction method for treating fault broken zone of shield segment of submarine tunnel |
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|---|---|---|---|---|
| SE459929B (en) * | 1984-10-15 | 1989-08-21 | Atlas Copco Ab | Underground energy store prodn. |
| CN102155213A (en) * | 2011-04-08 | 2011-08-17 | 中煤科工集团西安研究院 | Dynamic detection method for mine mining-induced fracture |
| CN102322294A (en) * | 2011-05-31 | 2012-01-18 | 中铁二十局集团第一工程有限公司 | Comprehensive geological prediction method for karst tunnel construction |
| CN104863576A (en) * | 2015-04-03 | 2015-08-26 | 山东大学 | Method for judging geological layer where drill of drilling machine where drill of drilling machine drilling for certain depth is positioned |
| CN105041306A (en) * | 2015-07-22 | 2015-11-11 | 山东科技大学 | Impact risk warning method on basis of multi-parameter critical coal dust quantity indexes |
| CN106837351A (en) * | 2017-01-22 | 2017-06-13 | 中南大学 | Tunnel Karst water detects Treatment Methods |
| CN106837352A (en) * | 2017-01-22 | 2017-06-13 | 中南大学 | Fault belt surrounding rock tunnel construction method |
-
2017
- 2017-07-19 CN CN201710591477.5A patent/CN107448143B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE459929B (en) * | 1984-10-15 | 1989-08-21 | Atlas Copco Ab | Underground energy store prodn. |
| CN102155213A (en) * | 2011-04-08 | 2011-08-17 | 中煤科工集团西安研究院 | Dynamic detection method for mine mining-induced fracture |
| CN102322294A (en) * | 2011-05-31 | 2012-01-18 | 中铁二十局集团第一工程有限公司 | Comprehensive geological prediction method for karst tunnel construction |
| CN104863576A (en) * | 2015-04-03 | 2015-08-26 | 山东大学 | Method for judging geological layer where drill of drilling machine where drill of drilling machine drilling for certain depth is positioned |
| CN105041306A (en) * | 2015-07-22 | 2015-11-11 | 山东科技大学 | Impact risk warning method on basis of multi-parameter critical coal dust quantity indexes |
| CN106837351A (en) * | 2017-01-22 | 2017-06-13 | 中南大学 | Tunnel Karst water detects Treatment Methods |
| CN106837352A (en) * | 2017-01-22 | 2017-06-13 | 中南大学 | Fault belt surrounding rock tunnel construction method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198120A (en) * | 2021-12-14 | 2022-03-18 | 中铁华铁工程设计集团有限公司 | Construction method for treating fault broken zone of shield segment of submarine tunnel |
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| CN107448143B (en) | 2019-05-10 |
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