CN107448143B - Broken rock mass dynamic boring method - Google Patents
Broken rock mass dynamic boring method Download PDFInfo
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- CN107448143B CN107448143B CN201710591477.5A CN201710591477A CN107448143B CN 107448143 B CN107448143 B CN 107448143B CN 201710591477 A CN201710591477 A CN 201710591477A CN 107448143 B CN107448143 B CN 107448143B
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- drilling
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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 present invention provides a kind of Broken rock mass dynamic boring method, it the steps include: the crushed zone geological information for collecting mapping and radar detection is arrived, determine dynamic boring region；It drills since determining dynamic boring region, and drilling parameter is recorded in drilling operating record sheet；According to the drilling parameter in drilling operating record sheet, rock-mass quality distribution situation of the drilling on depth direction is differentiated；An optional direction drills in drilling area planar, according to the rock-mass quality distribution situation in adjacent drilling depth direction, determines next bore position, depth and direction；It finally drills to other directions on drilling plane, until drilling covering outlet area.Broken rock mass dynamic boring method provided by the invention can accurately determine the geological condition inside palisades.
Description
Technical field
The present invention relates to underground cavern excavation technology field, in particular to a kind of Broken rock mass dynamic boring method.
Background technique
Large Underground cave depot excavation frequently suffers from crushed zone tomography and passes through, since the situation inside rock mass is ever-changing extremely
Complexity is difficult to accurately describe the geological condition inside palisades by existing technological means.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
Palisades surface is typically hidden within hereinafter, the plane of disruption and EXIT POINT position rear that rock mass surface is observed often are not real
Leakage passage, as shown in Figure 3 and Figure 4.Therefore, geology inside palisades is determined in such a way that tunneling boring is evenly arranged injected hole
The method heavy workload of situation, low efficiency, it is often more important that the fresh rock body drilled except crushed zone can usually be destroyed originally
Complete fresh rock mass influences rock mass strength and even forms new leakage passage, final definitive result often it is unsatisfactory with it is quasi-
Really.
Summary of the invention
Technical problem to be solved by the invention is to provide the rock mass that one kind can accurately determine geological condition inside palisades
Crushed zone dynamic boring method.
In order to solve the above technical problems, the present invention provides a kind of Broken rock mass dynamic boring method,
Include the following steps:
The crushed zone geological information that step 10, collection mapping and radar detection are arrived, determines dynamic boring region；
Step 20 bores first hole since determining dynamic boring region, and drilling parameter is recorded in drilling operating
In record sheet；
Step 30, according to 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, subsequent drilling can drill 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 according to the method described above drills to other directions in drilling area planar, until drilling covers out
Water area.
Further, the drilling parameter includes every section of drilling time used, bit freezing parameter, rock mass water outlet parameter.
Further, the method that first hole is bored since determining dynamic boring region is, if broken take out of
Water is unobvious, then drills one end of palisades exposure since crushed zone, if broken have obvious EXIT POINT, is with EXIT POINT
Center starts to drill around EXIT POINT.
Further, the judgment method for differentiating the rock-mass quality distribution situation on depth direction that drills is to creep into
Used time short position illustrates that rock mass is soft but is not crushed, and drilling duration and not bit freezing illustrate that rock mass is hard, boring duration and card
Brill illustrates rock crushing.
Further, the next bore position of the determination, depth and the method in direction be, for the good portion of rock-mass quality
The drilling around rock mass is reduced along the adjacent drilling depth direction, for rock-mass quality difference or the serious portion of percolating water in position
Position, along the adjacent drilling depth direction encryption drilling, drilling depth, which is subject to, passes through rock mass internal fracture band.
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 drill
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 that next drilling is adjusted with the rock mass situation such as depth, trend, degree of crushing result dynamic, finally may be used
To accurately determine the geological condition inside palisades, and effectively reduce the invalid drilling arranged on rockmass, improve
Drilling efficiency and subsequent construction efficiency.
Detailed description of the invention
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 the prior art provides；
Fig. 3 is the rock mass surface that the prior art provides and internal fracture band relation schematic diagram；
Fig. 4 is the rock mass surface and internal fracture band relationship A-A cross-sectional view that the prior art provides；
Fig. 5 is provided in an embodiment of the present invention around EXIT POINT dynamic boring schematic diagram；
Fig. 6 is drilling hole location serial number floor map provided in an embodiment of the present invention.
Specific embodiment
Referring to Fig. 1, a kind of Broken rock mass dynamic boring method provided in an embodiment of the present invention includes the following steps:
1) the crushed zone geological information for collecting mapping and radar detection etc. first, for mapping and radar
Rock-mass quality is preferable and the unconspicuous region of leakage passage for detection display, can wouldn't arrange drilling；For reflecting rock-mass quality
Region poor and there are more apparent leakage passage can primarily determine the region to arrange dynamic boring.
2) first hole is bored since the dynamic boring region primarily determined, if crushed zone water outlet is 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 have
Obvious EXIT POINT is then started to drill around EXIT POINT centered on EXIT POINT, and drilling parameter is recorded in drillman
In sequence record sheet.Wherein, drilling parameter includes every drilling time used, bit freezing situation, the parameters such as rock mass water outlet status.It bores
Hole process record sheet is as shown in table 1.
Table 1
3) according to the drilling parameter in drilling operating record sheet, differentiate that rock-mass quality of the drilling on depth direction is distributed feelings
Condition.If drilling used time short position illustrates that rock mass is soft but is not crushed, 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, subsequent drilling can first any selection a direction be successively bored on drilling plane
Hole determines next bore position, depth and direction according to the rock-mass quality distribution situation in adjacent drilling depth direction.Such as: it is right
The drilling around rock mass is reduced in the good position of rock-mass quality, rock-mass quality difference or the serious position encryption of percolating water are bored
Hole, drilling depth, which is subject to, passes through rock mass internal fracture band, but the depth to drill is no more than 6m.
5) it finally drills according to above-mentioned boring method to other directions on drilling plane, until 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.
It now need to be in certain palisades plane internal drilling, first the crushed zone geology letter of collection mapping and radar detection etc.
Breath, by rock-mass quality that mapping and radar detection are shown it is poor and there are the region of more apparent leakage passage primarily determine for
The position of dynamic boring.Then it drills since the dynamic boring position primarily determined, referring to Fig. 5, is discharged in crushed zone unknown
Aobvious place, drills one end of palisades exposure since crushed zone；Broken at obvious EXIT POINT, centered on EXIT POINT
Start to drill around EXIT POINT, and the time that every section of drilling is used, bit freezing situation, the drilling parameters such as rock mass water outlet status
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 number are such as Fig. 6 institute
Show.Every section is crept into boring procedure the time used, bit freezing situation, the drilling parameters such as rock mass water outlet status are recorded in drilling
In process record sheet, finally obtained drilling parameter situation is as shown in table 2.
Table 2
Note: the time indicates every section of drilling used time, unit mm:ss in table
It finds that rock mass is hard in boring procedure referring to table 2,1 and No. 2 holes, and is observed 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 drilling record shows that rock-mass quality is more uniform, so average cloth hole, Kong Jian can be used in region all directions
Away from maintaining 0.8m or so.
No. 12 holes and No. 13 holes there are flowing out in a period of time after brill, and rock mass is relatively broken, therefore again dynamic around the hole
State arranges the hole 16-23 and is encrypted, and covers the infiltration region.
The hole 24-33 rock mass is relatively broken, but water outlet is not serious, therefore the region can wouldn't must increase drilling.
Not bit freezing during 34-40 hole drilling, but the time used in drill footage is shorter, 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 area；B area rock mass is relatively broken and drilling depth middle part has bit freezing existing
As illustrating that this region rock-mass quality is poor, there are more leakage passage, needing 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 leakage
Domain needs to reinforce to pay attention to during slip casting.
It should be noted last that the above specific embodiment is only used to illustrate the technical scheme of the present invention and not to limit it,
Although being described the invention in detail referring to example, those skilled in the art should understand that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit and scope of the technical solution of the present invention, should all cover
In the scope of the claims of the present invention.
Claims (4)
1. a kind of Broken rock mass dynamic boring method, which comprises the steps of:
By rock-mass quality difference and there is obvious seep in the crushed zone geological information that step 10, collection mapping and radar detection are arrived
The region in leakage channel is determined as dynamic boring region；
Step 20 bores first hole since determining dynamic boring region, if crushed zone water outlet is unobvious, exists from crushed zone
One end of palisades exposure starts to drill, if broken have obvious EXIT POINT, is started around EXIT POINT centered on EXIT POINT
It drills, and drilling parameter is recorded in drilling operating record sheet；
Step 30, according to the drilling parameter in drilling operating record sheet, differentiate rock-mass quality distribution of the drilling on depth direction
Situation；
After the completion of step 40, first drilling, subsequent drilling can drill 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, good for rock-mass quality
Position, reduce the drilling around rock mass along the adjacent drilling depth direction, it is serious for rock-mass quality difference or percolating water
Position, along the adjacent drilling depth direction encryption drilling, drilling depth, which is subject to, passes through rock mass internal fracture band；
Step 50 finally according to the method described above drills to other directions in drilling area planar, until 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
Section is crept into the time used, bit freezing parameter, and rock mass is discharged parameter.
3. Broken rock mass dynamic boring method according to claim 1, it is characterised in that: the differentiation drilling is along depth
The judgment method of rock-mass quality distribution situation on direction is, drilling used time short position illustrates that rock mass is soft but is not crushed, and creeps into
Illustrate that rock mass is hard with duration and not bit freezing, boring duration and bit freezing illustrates rock crushing.
4. Broken rock mass dynamic boring method according to claim 1, it is characterised in that: the drilling depth is no more than
6m。
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| Application Number | Priority Date | Filing Date | Title |
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| CN2017104686485 | 2017-06-20 | ||
| CN201710468648 | 2017-06-20 |
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| CN107448143B true CN107448143B (en) | 2019-05-10 |
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| 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 |
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 |
| CN106837352A (en) * | 2017-01-22 | 2017-06-13 | 中南大学 | Fault belt surrounding rock tunnel construction method |
| CN106837351A (en) * | 2017-01-22 | 2017-06-13 | 中南大学 | Tunnel Karst water detects Treatment Methods |
-
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 |
| CN106837352A (en) * | 2017-01-22 | 2017-06-13 | 中南大学 | Fault belt surrounding rock tunnel construction method |
| CN106837351A (en) * | 2017-01-22 | 2017-06-13 | 中南大学 | Tunnel Karst water detects Treatment Methods |
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