CN103867158A - Underwater drilling fast blockage air bag and blockage method thereof - Google Patents
Underwater drilling fast blockage air bag and blockage method thereof Download PDFInfo
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- CN103867158A CN103867158A CN201410071046.2A CN201410071046A CN103867158A CN 103867158 A CN103867158 A CN 103867158A CN 201410071046 A CN201410071046 A CN 201410071046A CN 103867158 A CN103867158 A CN 103867158A
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- air bag
- airbag body
- wireway
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Abstract
The invention discloses an underwater drilling fast blockage air bag, comprising an air bag body made of rubber; a cylindrical bulge is arranged at the top of the air bag body; an air inlet/outlet is formed in the outer wall of the cylindrical bulge; the air inlet/outlet is communicated with the inner cavity of the air bag body by a channel arranged in the cylindrical bulge; an air guide pipe is arranged at the air inlet/outlet, and the other end of the air guide pipe is provided with a control valve; a connection ring is sleeved on the air bag body; the connection ring is positioned at the upper part of the air bag body; a plurality of connection ropes are uniformly distributed along the circumferential direction of the connection ring; a falling weight is arranged at the tail end of each connection rope. The underwater drilling fast blockage air bag is good in blockage effect, can block an underwater geological drilled hole with failure in very short time, and the implementation method is simple and feasible.
Description
Technical field
The present invention relates to a kind of shutoff air bag, especially relate to a kind of underwater drilling quick blocking air bag and method for blocking thereof.
Background technology
In rock stratum, build tunnel under water, generally adopt drilling and blasting method.In the time of Blasting Excavation, even if process early stage, under concussion of blasting and high Water Pressure, existing geotechnical boring position, top is still weak link, once there is water burst phenomenon, will cause great threat to the safety of operating personnel, equipment in tunnel, at this moment just need to carry out quick blocking to water burst drilling holes position, guarantee that the safety of operating personnel, equipment is also for punishment measure below gains time.
In broken ground, build under water the conventional shield method in tunnel.When shield machine tunnels in Jiang Haizhong section, because thickness of earth covering is generally less, and hydraulic pressure is larger, stable being difficult to of cutting face controlled, and if any accidentally, just likely causes muddy water splitting stratum, produce " roof fall " phenomenon, subside and river (sea) water such as pours in down a chimney at the Important Project accident thereby produce.Particularly passing through in existing geotechnical boring process, the existing boring existing due to top is a weak link, even if the cutterhead position of shield structure front portion is sealed, but in tunneling process, still there will be water burst phenomenon, bring security threat to the operating personnel in tunnel, and equipment is caused to the infringement that is difficult to reparation in the short time, bring great economic loss if process bad meeting to construction enterprises, more can cause tunnel to build up rear operating environment severe.Therefore must carry out quick blocking in existing geotechnical boring position, guarantee the safety of shield machine in tunneling process.
At present, the method for geotechnical boring shutoff under water, adopts sleeve valve pipe or steel floral tube to carry out slip casting in borehole circumference mostly, and the top mud cleaning of holing after slip casting finishes, then applies concrete cover, by this region shutoff.But there is following shortcoming in above-mentioned slip casting and concrete landfill shutoff mode: 1, must be chosen to be at and when the water surface is tranquil, adopt cofferdam or overwater drilling platform construction, activity duration greatly to be limited the dry seasons such as river (river), and with high costs; When slip casting under water, the range of scatter of slurries is difficult to be effectively controlled, and slip casting effect check is more difficult; 2, because grouting serous fluid can be diffused in water unavoidably, cause alkaline slurry to cause severe contamination to water body; 3, underwater drilling shutoff difficulty is large, owing to can not have stable working platform on the water surface, therefore the activity duration is long, operating environment requires harsh, under water in case of emergency, adopt the method for blocking such as landfill, grouting cannot be in time geotechnical boring under water to be carried out to shutoff, cannot provide time enough to guarantee personnel and device security at all.
Summary of the invention
For addressing the above problem, the object of this invention is to provide a kind of wear-resisting, be difficult for piercing through, can fast aeration and the underwater drilling quick blocking air bag of venting, it under water can be closely cementing with various soil and rock, can convenient, fast, effectively solve the quick blocking problem of existing geotechnical boring under water, the safety of personnel and equipment while guaranteeing to wear under shield tunnel and drilling and blasting method tunnel at the bottom of river, existing boring location.
For achieving the above object, the present invention adopts following technical scheme:
A kind of underwater drilling quick blocking air bag, it comprises the spheroidal airbag body of quality of rubber materials, airbag body top has cylindrical bump, on cylindrical bump outer wall, offer air inlet/outlet, air inlet/outlet communicates with the inner chamber of airbag body via the inner passage arranging of cylindrical bump, air inlet/outlet place is provided with wireway, and the wireway other end is provided with by-pass valve control; On airbag body, be arranged with a connecting ring, connecting ring is positioned at airbag body top, is along the circumferential direction evenly distributed with some connection cords on connecting ring, and connection cord end is provided with falling body.
Another kind of underwater drilling quick blocking air bag, it comprises the oval spherical envelope body of quality of rubber materials, airbag body top has cylindrical bump, on cylindrical bump outer wall, offer air inlet/outlet, air inlet/outlet communicates with the inner chamber of airbag body via the inner passage arranging of cylindrical bump, air inlet/outlet place is provided with wireway, and the wireway other end is provided with by-pass valve control; On airbag body, be arranged with a connecting ring, connecting ring is positioned at airbag body top, is along the circumferential direction evenly distributed with some connection cords on connecting ring, and connection cord end is provided with falling body.
Further, in above-mentioned oval spherical envelope body, be marked with the compound plugging material of high-performance inorganic thing polymer of grade separation structure.
The method for blocking of above-mentioned underwater drilling quick blocking air bag, it comprises the following steps:
(1), determine underwater drilling position
Consult relevant geologic information or adopt physical prospecting mode to position underwater drilling position;
(2), shutoff air bag is prepared
Inner chamber inflation by wireway to spheroidal airbag body or oval spherical envelope body, surrounding has been evenly arranged falling body, and the cylindrical bump at backstay and airbag body top is connected;
(3), shutoff air bag is transferred
By backstay, shutoff air bag is sunk to existing bore position, again gas is discharged to a part, backstay is taken out, emit slowly gas after sinking to assigned address by the self gravitation of falling body and airbag body, now can rise and sink by wireway control air bag; In gas purging process, due to the water-swellable characteristic of airbag body, airbag body can be adjacent to hole wall surrounding, reaches the object of shutoff sealing.
In the method for blocking of above-mentioned underwater drilling quick blocking air bag, while adopting oval spherical envelope body, in the time that oval spherical envelope body arrives assigned address, inject the compound plugging material of high-performance inorganic thing polymer of grade separation structure by wireway.
The compound plugging material of high-performance inorganic thing polymer of grade separation structure under water can rapid curing, and elasticity is high, has good adhesion stress with airbag body inner surface, and in the time that elongation per unit length is greater than 200%, bonding does not firmly come off.
It is the rubber of ethylene propylene diene rubber, acrylic copolymer and methylcellulose that airbag body in the present invention adopts main material.
When quality of rubber materials airbag body in the present invention contacts with water, hydrone enters in rubber by physical actions such as diffusion, capillary and adsorptions, forms extremely strong affinity with the hydrophilic radical in rubber.Hydroaropic substance constantly absorbs moisture, causes rubber generation deformation, and in the time that rubber self anti deformational force is suitable with permeable pressure head, the expansion rate recording is hydrostatic maximum swelling rate.Generally, shutoff air bag is to use under semi-enclosed geotechnical boring condition, after meeting water, expansion rate can not reach its hydrostatic maximum swelling rate, therefore just produce rubber after expanding and the contact between obligatory point, relied on this contact hydro-expansive rubber just can to bring into play the effect of hermetic seal.
Owing to adopting technical scheme as above, the present invention has following superiority:
This underwater drilling quick blocking air bag, it adopts the airbag body of quality of rubber materials, nontoxic, tasteless, hydraulic pressure holding capacity is strong, dilation can not reduce its key property yet repeatedly, there is mechanical strength high simultaneously, wear-resisting, be difficult for piercing through, the feature that water imbibition is high, plugging effect is good, can be by the shutoff of geotechnical boring under water going wrong within the extremely short time, implementation method is simple and easy to do, only need to determine the particular location of boring, by backstay, shutoff air bag is delivered to assigned address, due to the characteristic of the water-swellable of airbag body, airbag body can be adjacent to hole wall surrounding, reach the object of shutoff sealing.
Accompanying drawing explanation
Fig. 1 is the structure top view of one of underwater drilling quick blocking balloon embodiment of the present invention;
Fig. 2 is the structural front view of shutoff air bag in Fig. 1;
Fig. 3 is the structure side view of shutoff air bag in Fig. 1;
Fig. 4 is two structural front view of underwater drilling quick blocking balloon embodiment of the present invention;
Fig. 5 is the structure side view of shutoff air bag in Fig. 4;
In figure: 1-falling body; 2-connecting ring; 3-airbag body; 4-wireway; 5-by-pass valve control; 6-air inlet/outlet; 7-cylindrical bump; The compound plugging material of high-performance inorganic thing polymer of 8-grade separation structure.
The specific embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in further detail.
Embodiment mono-
As shown in Figure 1, 2, 3, underwater drilling quick blocking air bag of the present invention, it comprises the spheroidal airbag body 3 of quality of rubber materials, airbag body top has cylindrical bump 7, on cylindrical bump outer wall, offer air inlet/outlet 6, air inlet/outlet communicates with the inner chamber of airbag body via the inner passage arranging of cylindrical bump, and air inlet/outlet place is provided with wireway 4, and the wireway other end is provided with by-pass valve control 5; On airbag body, be arranged with a connecting ring 2, connecting ring is positioned at airbag body top, is along the circumferential direction evenly distributed with some connection cords on connecting ring, and connection cord end is provided with falling body 1.
When use, first consult relevant geologic information or adopt physical prospecting mode to position underwater drilling position; Then, the inner chamber inflation by wireway to airbag body, surrounding has been evenly arranged falling body, and the cylindrical bump at backstay and airbag body top is connected; Then, by backstay, shutoff air bag is sunk to existing bore position, then gas is discharged to a part, backstay is taken out, after sinking to assigned address by the self gravitation of falling body and airbag body, emit slowly gas, now can rise and sink by wireway control air bag; In gas purging process, due to the water-swellable characteristic of airbag body, airbag body can be adjacent to hole wall surrounding, reaches the object of shutoff sealing.
Embodiment bis-
As shown in Figure 4,5, underwater drilling quick blocking air bag of the present invention, it comprises the oval spherical envelope body 3 of quality of rubber materials, airbag body top has cylindrical bump 7, on cylindrical bump outer wall, offer air inlet/outlet 6, air inlet/outlet communicates with the inner chamber of airbag body via the inner passage arranging of cylindrical bump, and air inlet/outlet place is provided with wireway 4, and the wireway other end is provided with by-pass valve control 5; On airbag body, be arranged with a connecting ring 2, connecting ring is positioned at airbag body top, is along the circumferential direction evenly distributed with some connection cords on connecting ring, and connection cord end is provided with falling body 1.
In above-mentioned oval spherical envelope body 3, be marked with the compound plugging material 8 of high-performance inorganic thing polymer of grade separation structure.
Spheroidal airbag body is applicable to underwater drilling shutoff generally, still, when spheroidal shutoff air bag is well when shutoff underwater drilling, adopts oval spherical envelope body.
When use, first consult relevant geologic information or adopt physical prospecting mode to position underwater drilling position; Then, the inner chamber inflation by wireway to airbag body, surrounding has been evenly arranged falling body, and the cylindrical bump at backstay and airbag body top is connected; Then, by backstay, shutoff air bag is sunk to existing bore position, again gas is discharged to a part, backstay is taken out, while sinking to assigned address by the self gravitation of falling body and airbag body, inject the compound plugging material of high-performance inorganic thing polymer of grade separation structure by wireway, and inject a small amount of catalyzer, then emit slowly gas, now can rise and sink by wireway control air bag; In gas purging process, due to the water-swellable characteristic of airbag body, airbag body can be adjacent to hole wall surrounding, reaches the object of shutoff sealing.
Claims (5)
1. a underwater drilling quick blocking air bag, it is characterized in that: it comprises the spheroidal airbag body of quality of rubber materials, airbag body top has cylindrical bump, on cylindrical bump outer wall, offer air inlet/outlet, air inlet/outlet communicates with the inner chamber of airbag body via the inner passage arranging of cylindrical bump, air inlet/outlet place is provided with wireway, and the wireway other end is provided with by-pass valve control; On airbag body, be arranged with a connecting ring, connecting ring is positioned at airbag body top, is along the circumferential direction evenly distributed with some connection cords on connecting ring, and connection cord end is provided with falling body.
2. a underwater drilling quick blocking air bag, it is characterized in that: it comprises the oval spherical envelope body of quality of rubber materials, airbag body top has cylindrical bump, on cylindrical bump outer wall, offer air inlet/outlet, air inlet/outlet communicates with the inner chamber of airbag body via the inner passage arranging of cylindrical bump, air inlet/outlet place is provided with wireway, and the wireway other end is provided with by-pass valve control; On airbag body, be arranged with a connecting ring, connecting ring is positioned at airbag body top, is along the circumferential direction evenly distributed with some connection cords on connecting ring, and connection cord end is provided with falling body.
3. underwater drilling quick blocking air bag according to claim 2, is characterized in that: the compound plugging material of high-performance inorganic thing polymer that is marked with grade separation structure in its oval spherical envelope body.
4. a method for blocking for the underwater drilling quick blocking air bag described in arbitrary claim in claim 1～3, is characterized in that: it comprises the following steps:
(1), determine underwater drilling position
Consult relevant geologic information or adopt physical prospecting mode to position underwater drilling position;
(2), shutoff air bag is prepared
Inner chamber inflation by wireway to spheroidal airbag body or oval spherical envelope body, surrounding has been evenly arranged falling body, and the cylindrical bump at backstay and airbag body top is connected;
(3), shutoff air bag is transferred
By backstay, shutoff air bag is sunk to existing bore position, again gas is discharged to a part, backstay is taken out, emit slowly gas after sinking to assigned address by the self gravitation of falling body and airbag body, now can rise and sink by wireway control air bag; In gas purging process, due to the water-swellable characteristic of airbag body, airbag body can be adjacent to hole wall surrounding, reaches the object of shutoff sealing.
5. method according to claim 4, is characterized in that: when it adopts oval spherical envelope body, in the time that oval spherical envelope body arrives assigned address, inject the compound plugging material of high-performance inorganic thing polymer of grade separation structure by wireway.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410071046.2A CN103867158B (en) | 2014-02-28 | 2014-02-28 | Underwater drilling fast blockage air bag and blockage method thereof |
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| CN201410071046.2A CN103867158B (en) | 2014-02-28 | 2014-02-28 | Underwater drilling fast blockage air bag and blockage method thereof |
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| CN103867158A true CN103867158A (en) | 2014-06-18 |
| CN103867158B CN103867158B (en) | 2017-01-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115545A (en) * | 2018-08-03 | 2019-01-01 | 邹城兖矿泰德工贸有限公司 | Geological casing pipe |
| CN114482137A (en) * | 2022-01-27 | 2022-05-13 | 中钢集团马鞍山矿山研究总院股份有限公司 | Method for treating water spraying turbidity running of cover plate at lower part of drainage chute of tailing pond |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109115545A (en) * | 2018-08-03 | 2019-01-01 | 邹城兖矿泰德工贸有限公司 | Geological casing pipe |
| CN114482137A (en) * | 2022-01-27 | 2022-05-13 | 中钢集团马鞍山矿山研究总院股份有限公司 | Method for treating water spraying turbidity running of cover plate at lower part of drainage chute of tailing pond |
| CN114482137B (en) * | 2022-01-27 | 2024-02-27 | 中钢集团马鞍山矿山研究总院股份有限公司 | Method for controlling water spraying and turbidity of cover plate at lower part of drainage chute of tailing pond |
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| CN103867158B (en) | 2017-01-25 |
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