CN103822553A - Pre-splitting hole drilling powder charging method for underwater rock plug blasting - Google Patents
Pre-splitting hole drilling powder charging method for underwater rock plug blasting Download PDFInfo
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- CN103822553A CN103822553A CN201410067248.XA CN201410067248A CN103822553A CN 103822553 A CN103822553 A CN 103822553A CN 201410067248 A CN201410067248 A CN 201410067248A CN 103822553 A CN103822553 A CN 103822553A
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Abstract
The invention provides a pre-splitting hole drilling powder charging method for underwater rock plug blasting. The method includes the steps of (1) drilling parameter calculating and labeling, (2) positioning steel pipe arranging, (3) hole drilling, (4) hole cleaning, (5) drilling direction and hole depth detecting, (6) powder charging, (7) detonator foot wire and detonating fuse fixing and (8) pre-splitting hole blocking. A positioning half-pipe precise positioning technology is adopted in the method, the drilling accuracy is high, and the formed outline after blasting is good. The guaranteeing degree of drilling powder charging is high, rapid and accurate powder charging can be achieved, especially when poor geologies and water seepage holes exist, blast holes cannot be influenced by external condition changes, high-quality powder charging can be still performed smoothly, the blocking speed is high, the quality is good, and therefore the blasting effect can be effectively guaranteed. The drilling accuracy is high, the process is simple, and the cost is low. An original rapid plugging agent is high in condensation rate, plugs are high in intensity, and the problem that due to the fact that at present, blast hole plugs for underwater rock plug blasting can be damaged by seepage water easily and even be rushed out of the holes gradually after being soaked, the plugging effect fails is solved.
Description
Technical field
The present invention relates to a kind of borehole charge method, relate in particular to a kind of presplitting hole drilling loading method for chock blasting under water.
Background technology
The pre-ceasma of chock blasting under water is generally arranged in rock plug section design profile line periphery; it is all space angling hole; borehole charge difficulty is large, and required precision is high, and the quality of its construction quality is directly connected to the final molding of chock blasting and the protection effect to surrounding rock body.The pre-ceasma of chock blasting under water at present generally adopts hand air drill or for hole drill, measures after unwrapping wire, utilizes common scaffold location then to hole, and this technological borehole precision is not high, and drilling quality assurance degree is poor; Also have the special sample frame of making to hole, this technique is more complicated, and cost is high.Particularly, in the time that hole depth exceedes 8m, centralizer is not generally installed, therefore drilling quality is poor.Easily occur before powder charge or powder charge process in collapse hole, fall slag, the rock ballast alluvial that causes because of infiltration etc. causes this hole cannot complete powder charge, needs again clear hole, even redrilling when serious.After boring, powder stick is tied up and on bamboo chip, directly sent in hole, this loading method is extremely inconvenient, and mixture that then adopts yellow mud, rock dust or yellow mud and sand etc. carries out big gun hole plug as stemming, and tamper intensity is low, and demolition effect is had to impact.Particularly for the big gun hole that has infiltration, because of its can not rapid condensation and adhesion strength own low, be easy to the destruction of being seeped water, after even soaking, gone out gradually outside hole, lose obstruction effect.Due to the existence of the problems referred to above, cause borehole accuracy not high, directly affect the profile quality after explosion, in the time running into unfavorable geology and water seepage hole, powder charge assurance degree is poor, stops up effect bad, also may occur that big gun hole causes repeatedly hole, the phenomenon of redrilling even clearly again of needs such as rock ballast alluvial because of slump rock ballast in hole, infiltration, thereby affect progress and the quality of powder charge, and cause expense to rise.
Summary of the invention
For above-mentioned deficiency or problem, the invention provides the borehole charge technology of the pre-ceasma of a kind of chock blasting under water, solve preferably the borehole charge problem of the pre-ceasma of chock blasting under water.
Addressing the above problem taked technical measures is:
For a presplitting hole drilling loading method for chock blasting under water, it is characterized in that:
(1) calculate drilling parameter mark: calculate in detail the parameter such as boring direction, hole depth in each hole, be labeled on scar with red paint;
(2) arrange positioning steel tube: set up double-pole scaffold with steel pipe, positioning steel tube is all arranged in each presplitting hole site, positioning steel tube is cutd open into two equal semicanals from centre, each semicanal is the positioning steel tube in a hole, through measuring strict control, and accurately location, allow the center line of positioning steel tube overlap with pre-ceasma, dimensional orientation is identical, positioning steel tube opening up, and fixation;
(3) boring: adopt QCZ60 type hidden hole drilling from positioning steel tube internal drilling, want timely follow-up investigations record before boring, after perforate and in boring procedure, in the time that hole depth exceedes 8m, a centralizer is being installed apart from 6m place, aperture;
(4) clear hole: after having holed, with clear hole repeatedly, high pressure geomantic omen, insert pvc pipe in hole;
(5) detect orientation and the hole depth of holing: adopt gyrolevel to detect the azimuth of boring by hole, adopt the excellent hole depth of measuring of big gun;
(6) powder charge: powder stick, according to designing requirement, is tied up on PVC powder charge semicanal, installed detonator, tie up primacord, carry out water-proofing treatment, carry out the powder charge of pre-ceasma by hole;
(7) payment to a porter and the primacord of fixing detonator: after powder charge completes, the exposed parts dish of the payment to a porter of detonator and primacord is well used to the mouth of pipe of immobilization with adhesive tape at pvc pipe afterwards;
(8) presplitting hole plug: adopt the fast blocking agent of development voluntarily to carry out presplitting hole plug, fast blocking agent is made up of the mixture of yellow mud, sand, cement, water and waterglass, ratio is: yellow mud: sand: cement: water: waterglass=1: 1: 1: 0.2: 0.15, the moisture content of yellow mud is 8%～10%, on-the-spot with mixing with use.
beneficial effect of the present invention: the present invention has solved the borehole charge problem of the pre-ceasma of chock blasting under water preferably, and owing to having adopted location semicanal placement technology, borehole accuracy is high, and explosion aftershaping profile is good.Borehole charge assurance degree is high, can realize quick and precisely powder charge, especially in the time running into unfavorable geology and water seepage hole, the impact that big gun hole is not changed by external condition can, still powder charge in high quality smoothly, obstruction speed is fast, quality good, thereby can effectively guarantee demolition effect.Compared with prior art, borehole accuracy is high, and technique is simple, and cost is low.The fast blocking agent rate of set of the present invention's original creation is fast, tamper intensity is high, be particularly conducive to the big gun hole of infiltration, because of its rapid condensation and adhesion strength high, be not easy the destruction of being seeped water, stop up effective, effectively solve chock blasting under water at present by yellow mud, after the simple mixing of rock dust or yellow mud and sand, carry out big gun hole plug, tamper intensity is low, demolition effect is had to impact, particularly for the big gun hole that has infiltration, because of its can not rapid condensation and adhesion strength own low, be easy to the destruction of being seeped water, after even soaking, gone out gradually outside hole, lose the problem of stopping up effect.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in detail.
For a presplitting hole drilling loading method for chock blasting under water, its concrete steps are:
(1) calculate drilling parameter mark: calculate in detail the parameter such as boring direction, hole depth in each hole, then by the position of each pre-ceasma by measuring unwrapping wire, be labeled on scar with red paint;
(2) arrange positioning steel tube: adopt the steel pipe of diameter 42～48mm to set up double-pole scaffold, positioning steel tube is all arranged in each presplitting hole site, and it is 60mm steel pipe that positioning steel tube adopts internal diameter, cuts open into two equal semicanals from centre, each semicanal is the positioning steel tube in a hole, length is 1000～1500mm, through measuring strict control, and accurately location, allow the center line of positioning steel tube overlap with pre-ceasma, dimensional orientation is identical, positioning steel tube opening up, and fixation.Compared with prior art, borehole accuracy is high, and technique is simple, and cost is low;
(3) boring: adopt QCZ60 type hidden hole drilling from positioning steel tube internal drilling, before boring, after perforate and in boring procedure, want the bore angle of timely follow-up investigations boring, and carry out detailed record, guarantee that hole scattering error is no more than 1 °, when hole depth exceedes 8m, a centralizer is installed apart from 6m place, aperture, to prevent that drilling rod is because of the downward curving of Action of Gravity Field;
(4) clear hole: after having holed, with clear hole repeatedly, high pressure geomantic omen, after inspection meets the demands, in hole, inserting external diameter is the pvc pipe that φ 55mm, wall thickness are 1.2～2.5mm, prevent before powder charge or powder charge process in collapse hole, fall slag, the rock ballast alluvial that causes because of infiltration etc. causes this hole cannot complete powder charge, need again clear hole, even redrilling when serious;
(5) detect orientation and the hole depth of holing: adopt gyrolevel to detect the azimuth of boring by hole, at the bottom of adopting big gun rod to stretch into hole, and mark, after taking-up big gun rod, measure hole depth by measuring big gun rod on big gun rod;
(6) powder charge: powder stick, according to designing requirement, is tied up on PVC powder charge semicanal, installed detonator, tie up primacord, carry out water-proofing treatment, then by manually transporting to the scope of operation, carry out the powder charge of pre-ceasma by hole, powder stick is tied up on PVC powder charge semicanal, powder charge in more convenient past hole;
(7) payment to a porter and the primacord of fixing detonator: after powder charge completes, the exposed parts dish of the payment to a porter of detonator and primacord is well used to the mouth of pipe of immobilization with adhesive tape at pvc pipe afterwards;
(8) presplitting hole plug: adopt the fast blocking agent of development voluntarily to carry out presplitting hole plug, fast blocking agent is by yellow mud, sand, cement, the mixture of water and waterglass forms, ratio is: yellow mud: sand: cement: water: waterglass=1: 1: 1: 0.2: 0.15, the moisture content of yellow mud is 8%～10%, fast blocking agent adopts on-the-spot mixing, with mixing with use, with bamboo tamping rod by fast blocking agent tamping, and must not note and damage detonator lead and primacord, complete thus the powder charge of a pre-ceasma, the agent of this fast blocking, rate of set is fast, tamper intensity is high, be particularly conducive to the big gun hole of infiltration, because of its rapid condensation and adhesion strength high, be not easy the destruction of being seeped water, stop up effective.
Claims (1)
1. for a presplitting hole drilling loading method for chock blasting under water, it is characterized in that:
(1) calculate drilling parameter mark: calculate in detail the parameter such as boring direction, hole depth in each hole, be labeled on scar with red paint;
(2) arrange positioning steel tube: set up double-pole scaffold with steel pipe, positioning steel tube is all arranged in each presplitting hole site, positioning steel tube is cutd open into two equal semicanals from centre, each semicanal is the positioning steel tube in a hole, through measuring strict control, and accurately location, allow the center line of positioning steel tube overlap with pre-ceasma, dimensional orientation is identical, positioning steel tube opening up, and fixation;
(3) boring: adopt QCZ60 type hidden hole drilling from positioning steel tube internal drilling, want timely follow-up investigations record before boring, after perforate and in boring procedure, in the time that hole depth exceedes 8m, a centralizer is being installed apart from 6m place, aperture;
(4) clear hole: after having holed, with clear hole repeatedly, high pressure geomantic omen, insert pvc pipe in hole;
(5) detect orientation and the hole depth of holing: adopt gyrolevel to detect the azimuth of boring by hole, adopt the excellent hole depth of measuring of big gun;
(6) powder charge: powder stick, according to designing requirement, is tied up on PVC powder charge semicanal, installed detonator, tie up primacord, carry out water-proofing treatment, carry out the powder charge of pre-ceasma by hole;
(7) payment to a porter and the primacord of fixing detonator: after powder charge completes, the exposed parts dish of the payment to a porter of detonator and primacord is well used to the mouth of pipe of immobilization with adhesive tape at pvc pipe afterwards;
(8) presplitting hole plug: adopt the fast blocking agent of development voluntarily to carry out presplitting hole plug, fast blocking agent is made up of the mixture of yellow mud, sand, cement, water and waterglass, ratio is: yellow mud: sand: cement: water: waterglass=1: 1: 1: 0.2: 0.15, the moisture content of yellow mud is 8%～10%, on-the-spot with mixing with use.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197797A (en) * | 2014-08-29 | 2014-12-10 | 中国水利水电第六工程局有限公司 | Water seepage blast hole explosive filling device used in tunnel blasting excavation process |
| CN106288996A (en) * | 2016-08-24 | 2017-01-04 | 广西新港湾工程有限公司 | The one construction method of groove presplit blasting under water |
| CN107024153A (en) * | 2017-05-04 | 2017-08-08 | 中水东北勘测设计研究有限责任公司 | Underwater rock plug burst gyro distribution coyote hole method |
| CN111964544A (en) * | 2020-07-03 | 2020-11-20 | 中国水利水电第九工程局有限公司 | Blasting construction process for diversion tunnel strong-water-seepage rock plug |
| CN113916075A (en) * | 2021-10-31 | 2022-01-11 | 中国能源建设集团广西水电工程局有限公司 | Single face empty face rock plug blasting parameter primary selection test method |
| CN115164660A (en) * | 2022-08-16 | 2022-10-11 | 南昌大学 | Blocking bag applied to underwater drilling blasting and using method thereof |
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| US4135450A (en) * | 1975-07-11 | 1979-01-23 | Canadian Industries Limited | Method of underground mining |
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| US4135450A (en) * | 1975-07-11 | 1979-01-23 | Canadian Industries Limited | Method of underground mining |
| CN1884962A (en) * | 2006-07-04 | 2006-12-27 | 裘尧云 | Reef blasting method in underwater complex geological condition |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197797A (en) * | 2014-08-29 | 2014-12-10 | 中国水利水电第六工程局有限公司 | Water seepage blast hole explosive filling device used in tunnel blasting excavation process |
| CN106288996A (en) * | 2016-08-24 | 2017-01-04 | 广西新港湾工程有限公司 | The one construction method of groove presplit blasting under water |
| CN106288996B (en) * | 2016-08-24 | 2018-05-25 | 广西新港湾工程有限公司 | A kind of underwater groove presplit blasting construction method |
| CN107024153A (en) * | 2017-05-04 | 2017-08-08 | 中水东北勘测设计研究有限责任公司 | Underwater rock plug burst gyro distribution coyote hole method |
| CN111964544A (en) * | 2020-07-03 | 2020-11-20 | 中国水利水电第九工程局有限公司 | Blasting construction process for diversion tunnel strong-water-seepage rock plug |
| CN113916075A (en) * | 2021-10-31 | 2022-01-11 | 中国能源建设集团广西水电工程局有限公司 | Single face empty face rock plug blasting parameter primary selection test method |
| CN113916075B (en) * | 2021-10-31 | 2023-11-03 | 中国能源建设集团广西水电工程局有限公司 | Single-temporary-face rock plug blasting parameter primary selection test method |
| CN115164660A (en) * | 2022-08-16 | 2022-10-11 | 南昌大学 | Blocking bag applied to underwater drilling blasting and using method thereof |
| CN115164660B (en) * | 2022-08-16 | 2024-01-19 | 南昌大学 | Blocking bag applied to underwater drilling blasting and using method thereof |
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Application publication date: 20140528 |