CN101922167B - Method for taking water by explosively enlarging spiral filter tube - Google Patents
Method for taking water by explosively enlarging spiral filter tube Download PDFInfo
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- CN101922167B CN101922167B CN2010102839770A CN201010283977A CN101922167B CN 101922167 B CN101922167 B CN 101922167B CN 2010102839770 A CN2010102839770 A CN 2010102839770A CN 201010283977 A CN201010283977 A CN 201010283977A CN 101922167 B CN101922167 B CN 101922167B
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- filter tube
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The invention relates to a method for taking water by explosively enlarging a spiral filter tube, comprising the following steps of drilling a hole: rapidly and vertically drilling the hole by utilizing a small-diameter charge hole drill; explosively enlarging the hole: fixing explosives and a detonating cord by utilizing a bamboo sheet type explosive loader or a standard explosive loader, wherein the purpose of simultaneous initiation is achieved by connecting the detonating cord with each grain; installing the spiral filter tube: manually or mechanically installing the spiral filter tube, rotatably installing a filter tube at 2-30m position in the hole subjected to explosive enlargement, and installing a well tube at the upper part of the spiral filter tube through a buckle or a screw thread; stopping water by filling gravels: forming a complete artificial gravel stratum by backfilling medium-coarse sands in an annular space between the installed spiral filter tube and the wall of an explosive-enlarged hole i.e. an annular space which is not filled by blasted and crushed sand medium, and forming a water stopping clay layer by backfilling clay balls in an annular space between the well tube and the wall of the explosive-enlarged hole after filling the medium-coarse sands. The invention has the advantages of greatly enhancing the water taking benefit and shortening the construction period.
Description
Technical field
The present invention relates to a kind of method of taking water by explosively enlarging spiral filter tube.
Background technology
In emergent or non-fight military operation, tend to occur shortage surface water or surface water and polluted the situations such as destruction, draw fast phreatic water this moment just becomes the unique selection that emergency feedwater ensures.Underground water distributes extensively, and the available resources amount is more than 400 times of surface water resources amount, is the main water source type that emergency feedwater ensures.How to construct the water intaking pipe well in the shortest time, draw fast phreatic water, become the main technologies that emergency feedwater ensures under the specific condition.For example, China groundwater in Quaternary aquifers source have bury shallow, widely distributed, water quality good, be convenient to draw, the characteristics such as safety and protective are good, be meet an urgent need or non-fight military operation in main water source type.Quaternary system scall gravel particle content is high, and particularly larger gravel particle causes difficulty to conventional drilling technique.Because gravel particle can be considered rigid media, the charges such as the ice of hole inside and clay then exist with the hard plastic form of medium, loose granule gravel aquifer then develops into the blending agent of rigid particles and hard plastic charges, cause the problems such as the drill bit efficiency of breaking rock is low, rate of penetration is slow, mud is easily missed, hole wall easily caves in, pore-forming efficiency is low, so that the loose granule gravel aquifer bore a well to obtain water of Quaternary system long construction period, cost are high.Also there is above-mentioned Similar Problems in the aquifer water intaking in the extremely frigid zones permafrost haorizon.Utilizing explosive expansion spiral filter pipe to draw fast the phreatic water new technology is exactly for the problems referred to above, and this new technology can improve the operating efficiency that phreatic water is drawn in loose sandy gravel stratum or permafrost haorizon distributed area fast, satisfies the demand that fast feedwater ensures.
Summary of the invention
The method that the purpose of this invention is to provide a kind of taking water by explosively enlarging spiral filter tube can increase substantially the water intaking benefit and shorten construction period, to overcome present prior art above shortcomings.
The objective of the invention is to be achieved through the following technical solutions:
A kind of method of taking water by explosively enlarging spiral filter tube may further comprise the steps:
1) boring: utilize the boring of small-bore medicine drilling machine rapid vertical, installation guard aperture pipe in boring then deposits in hole wall collapse and the hole preventing, and the borehole mouth protects aperture when preventing explosive expansion, flat hole to cave in; The bore diameter in described hole is less than or equal to 80mm, and drilling depth is less than 30m, and it is 1:1 that the grade of side slope in flat hole is protected in the aperture; Described guard aperture pipe is PVC guard aperture pipe, and its external diameter is less than 80mm;
2) explosive expansion hole: utilize bamboo chip formula explosive loader or standard explosive loader fixedly explosive and detonating fuse, and the explosive array is installed in the described guard aperture pipe, connect each powder column by detonating fuse and reach the purpose of detonating simultaneously, at the detonating fuse that exposes the guard aperture mouth of pipe detonator is installed, last detonating primer, the explosive expansion result is so that the compressed compacted one-tenth pit shaft of plastic lamellated medium, simultaneously the sandy gravel stratum medium pulverized, loose and liquefaction;
3) installation spiral filter pipe: by artificial installation or mechanical erection spiral filter pipe, manually install and adopt chain tongs turn-knob equipment, directly the filter pipe rotation is installed to step 2 by manpower) 2m-30m place in the hole after the explosive expansion; Mechanical erection adopts the expanded function of medicine drilling machine, and the rotating mechanism by rig is installed to step 2 to the filter pipe rotation) in the hole after the explosive expansion 2m-30m place; Spiral filter pipe top is by buckle or screw thread installing well conductors, and the internal diameter of spiral filter pipe and well casing is 100mm-200mm;
4) fill out the gravel sealing: in the ring-like space that installs between spiral filter pipe and the explosive expansion hole wall, namely not by the ring-like space backfill medium coarse sand of explosion crushing sand medium charge, form complete manufactured sand gravel bed, after having filled medium coarse sand, ring-like space backfill clay ball between well casing and explosive expansion hole wall forms the sealing argillic horizon.
Beneficial effect of the present invention is: permafrost haorizon or scall all belong to the blending agent of rigid particles and hard plastic cement ice thing, adopt explosive expansion spiral filter pipe technology, can increase substantially the water intaking benefit and shorten construction period; The present invention mainly is comprised of line charge explosive expansion technology, spiral filter pipe technology and medicine drilling machine function integration technology, has an operating speed fast, easy and simple to handle, is convenient to promote.
Description of drawings
The below is described in further detail the present invention with reference to the accompanying drawings.
Fig. 1 is the structural representation that the described explosive expansion spiral of embodiment of the invention filter pipe installs.
Among the figure:
1, spiral filter pipe; 2, well casing; 3, explosive expansion hole wall; 4, manufactured sand gravel bed; 5, sealing argillic horizon.
The specific embodiment
The method of the described taking water by explosively enlarging spiral filter tube of the embodiment of the invention may further comprise the steps:
1) boring: utilize the boring of small-bore medicine drilling machine rapid vertical, installation guard aperture pipe in boring then deposits in hole wall collapse and the hole preventing, and the borehole mouth protects aperture when preventing explosive expansion, flat hole to cave in; The bore diameter in described hole is less than or equal to 80mm, and drilling depth is less than 30m, and it is 1:1 that the grade of side slope in flat hole is protected in the aperture; Described guard aperture pipe is PVC guard aperture pipe, and its external diameter is less than 80mm;
2) explosive expansion hole: utilize bamboo chip formula explosive loader or standard explosive loader fixedly explosive and detonating fuse, and the explosive array is installed in the described guard aperture pipe, connect each powder column by detonating fuse and reach the purpose of detonating simultaneously, at the detonating fuse that exposes the guard aperture mouth of pipe detonator is installed, last detonating primer, the explosive expansion result is so that the compressed compacted one-tenth pit shaft of plastic lamellated medium, simultaneously the sandy gravel stratum medium pulverized, loose and liquefaction;
3) installation spiral filter pipe: by artificial installation or mechanical erection spiral filter pipe 1, manually install and adopt chain tongs turn-knob equipment, directly filter pipe 1 rotation is installed to step 2 by manpower) 2m-30m place in the hole after the explosive expansion; Mechanical erection adopts the expanded function of medicine drilling machine, and the rotating mechanism by rig is installed to step 2 to filter pipe 1 rotation) in the hole after the explosive expansion 2m-30m place; Spiral filter pipe 1 top is by buckle or screw thread installing well conductors 2, and the internal diameter of spiral filter pipe 1 and well casing 2 is 100mm-200mm;
4) fill out the gravel sealing: in the ring-like space that installs between spiral filter pipe 1 and the explosive expansion hole wall 3, namely not by the ring-like space backfill medium coarse sand of explosion crushing sand medium charge, form complete manufactured sand gravel bed 4, after having filled medium coarse sand, ring-like space backfill clay ball between well casing 2 and explosive expansion hole wall 3 forms sealing argillic horizon 5.
When adopting line charge to carry out compression blasting, the diameter of its compaction cavum is determined by field trial, also can be estimated by following formula:
In the formula: D-compaction cavum diameter;
The dose of the every running meter of C-line charge (kg/m);
The resistance coefficient of A-soil can be chosen by following test value.
The moderate clay A=0.7 of water content
The larger gravel soil A=0.5 of water content～0.6
The less clay of water content, loess A=0.8
K-the coefficient relevant with soil thickness, powder charge draw ratio, charging means chooses by following test value under different charging conditions.
Soil thickness is less than 1 meter K=3
1.4～4.0 meters K=4 of soil thickness
Soil thickness is greater than 4 meters K=5
The spiral filter pipe is the steel pipe that is similar to the gravel strainer function, and tube head is pointed, and the tube wall outside is spirality, and tube wall has the little pore size distribution of a large amount of drainages, and the drainage aperture plays sand block, enlarges the effect of water supply radius and protection hole wall, is the important component of pipe well.When the spiral filter pipe rotated into the stream plasticity anaerobic condition of explosive expansion liquefaction generation, annular space can suitably be filled artificial gravel material.This explosive expansion well completion method is simple to operate, can construct fast the shallow pipe well of water intaking, constructs well depth approximately less than 30m, has important practical value at the loose granule gravel aquifer of Quaternary system or distributed area, permafrost haorizon aquifer.
After explosion medicine hole drill becomes, need Fast Installation guard aperture pipe, in case placing explosive column, hole wall collapse and sediment cause obstruction.Because stratum stratiform in the vertical is inhomogeneous, adopt the line charge mode that is not coupled, in the explosive column putting hole time, need to consider dose adjustability on vertical.General explosive expansion cavity volume and shape depend primarily on unit length explosive payload and charge constitution, and be also relevant with mechanical property, the explosive property of native medium.Reasonably explosive payload can obtain relative uniformly explosive expansion effect with charge constitution.Connect each powder column by detonating fuse and reach the purpose of detonating simultaneously, at the detonating fuse that exposes the guard aperture mouth of pipe detonator is installed, last detonating primer, the explosive expansion result is so that the compressed compacted one-tenth pit shaft of plastic lamellated medium, simultaneously the sandy gravel stratum medium pulverized, loose and liquefaction.
The spiral filter pipe is critical component in the pipe well structure, and its function is sand block and enlarges the water inlet radius.The drainage aperture of steel spiral filter pipe is relatively little, and treatment hole is towards the side direction breakdown, and the friction of avoiding rotating installation process results in blockage.The filter pipe outer wall is flakey, less spin friction resistance.Its outside is helicitic texture, forms spiral and creeps into effect, is convenient to rotation and installs.The spiral filter pipe outside can form the gravel bed of material automatically, and also manually backfill forms the gravel bed of material.The spiral filter pipe is installed need to supporting whirligig, and artificial mounting device and mechanical erection device can be set.Wherein, artificial mounting device is chain tongs turn-knob equipment, directly filter pipe rotation is installed to 2m-30m place in the hole after the explosive expansion by manpower; The mechanical erection device is the expanded function of medicine drilling machine, and the rotating mechanism by rig is installed to 2m-30m place in the hole after the explosive expansion to the filter pipe rotation, thereby forms two kinds of efficiently filter pipe installation exercises; Spiral filter pipe top connects well casing, and by buckle or screwed connection, both internal diameters are identical, and the artificial backfill clay ball in well casing exterior annular space forms the sealing layer, prevents from causing water pollution in the surface water inflow pit shaft.
Claims (5)
1. the method for a taking water by explosively enlarging spiral filter tube is characterized in that, comprises the following steps:
1) boring: utilize the boring of small-bore medicine drilling machine rapid vertical, installation guard aperture pipe in boring then deposits in hole wall collapse and the hole preventing, and the borehole mouth protects aperture when preventing explosive expansion, flat hole to cave in;
2) explosive expansion hole: utilize bamboo chip formula explosive loader or standard explosive loader fixedly explosive and detonating fuse, and the explosive array is installed in the described guard aperture pipe, connect each powder column by detonating fuse and reach the purpose of detonating simultaneously, at the detonating fuse that exposes the guard aperture mouth of pipe detonator is installed, last detonating primer, the explosive expansion result is so that the compressed compacted one-tenth pit shaft of plastic lamellated medium, simultaneously the sandy gravel stratum medium pulverized, loose and liquefaction;
3) installation spiral filter pipe: by artificial installation or mechanical erection spiral filter pipe, manually install and adopt chain tongs turn-knob equipment, directly the filter pipe rotation is installed to step 2 by manpower) 2m-30m place in the hole after the explosive expansion; Mechanical erection adopts the expanded function of medicine drilling machine, and the rotating mechanism by rig is installed to step 2 to the filter pipe rotation) in the hole after the explosive expansion 2m-30m place; Spiral filter pipe top is by buckle or screw thread installing well conductors;
4) fill out the gravel sealing: in the ring-like space that installs between spiral filter pipe and the explosive expansion hole wall, namely not by the ring-like space backfill medium coarse sand of explosion crushing sand medium charge, form complete manufactured sand gravel bed, after having filled medium coarse sand, ring-like space backfill clay ball between well casing and explosive expansion hole wall forms the sealing argillic horizon.
2. the method for taking water by explosively enlarging spiral filter tube according to claim 1, it is characterized in that: in step 1), the bore diameter in described hole is less than or equal to 80mm, and drilling depth is less than 30m.
3. the method for taking water by explosively enlarging spiral filter tube according to claim 1, it is characterized in that: in step 1), it is 1:1 that the grade of side slope in flat hole is protected in the aperture.
4. the method for taking water by explosively enlarging spiral filter tube according to claim 1 and 2, it is characterized in that: described guard aperture pipe is PVC guard aperture pipe, and its external diameter is less than 80mm.
5. the method for taking water by explosively enlarging spiral filter tube according to claim 1 and 2, it is characterized in that: the internal diameter of described filter pipe and well casing is 100mm-200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102839770A CN101922167B (en) | 2010-09-16 | 2010-09-16 | Method for taking water by explosively enlarging spiral filter tube |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102839770A CN101922167B (en) | 2010-09-16 | 2010-09-16 | Method for taking water by explosively enlarging spiral filter tube |
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| CN101922167A CN101922167A (en) | 2010-12-22 |
| CN101922167B true CN101922167B (en) | 2013-03-27 |
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| CN110005377B (en) * | 2019-04-02 | 2021-04-06 | 中国地质科学院勘探技术研究所 | Method for building vertical well bottom chamber |
| CN110313377B (en) * | 2019-08-02 | 2021-06-04 | 盐城师范学院 | Irrigation equipment of coastal mud flat agricultural |
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| CN1076003A (en) * | 1992-02-29 | 1993-09-08 | 吉林勘察工程公司 | Sinking shaft of large thick loose sandy gravel stratum and well drilling technology |
| US5273110A (en) * | 1992-07-22 | 1993-12-28 | Fitzgibbon Jr Daniel F | Inflatable devices for suspending explosives and stemming materials in boreholes |
| NO325291B1 (en) * | 2004-03-08 | 2008-03-17 | Reelwell As | Method and apparatus for establishing an underground well. |
| CN100429353C (en) * | 2006-06-27 | 2008-10-29 | 中国矿业大学 | Explosion-enlarging stake construction process |
| AU2010213345A1 (en) * | 2009-02-10 | 2011-08-25 | Dyno Nobel Asia Pacific Pty Limited | Method of blasting |
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Granted publication date: 20130327 Termination date: 20130916 |