CN204827355U - Nearly competent pressure -bearing drilling hole sealing structure - Google Patents
Nearly competent pressure -bearing drilling hole sealing structure Download PDFInfo
- Publication number
- CN204827355U CN204827355U CN201520605603.4U CN201520605603U CN204827355U CN 204827355 U CN204827355 U CN 204827355U CN 201520605603 U CN201520605603 U CN 201520605603U CN 204827355 U CN204827355 U CN 204827355U
- Authority
- CN
- China
- Prior art keywords
- section
- hole
- sealing
- hole sealing
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a nearly competent pressure -bearing drilling hole sealing structure comprises interior hole sealing section and outer hole sealing section, and the linkage segment that the hole sealing section is connected in the outer hole sealing duan shangyu forms through the mode solidification with interior hole sealing segment synchronization cementing thick liquid, inside and outside hole sealing section form respectively high pressure -bearing drilling with enlarge downtheholely, should enlarge hole site in the drill way portion of high pressure -bearing drilling, enlarge the interior step that forms between the drilling of kong yugao pressure -bearing and have and lie in the drilling of high pressure -bearing and go up the part of generating line top. All seal partly pipeline section of slip casting pipe and fracturing pipe in preferred in hole sealing section and the outer hole sealing section up for safekeeping, still be equipped with the flexibility on the fracturing pipe and hinder the thick liquid section, outer hole sealing section still includes polyurethane hole sealing section, the horizontal segment part of still sealing L shape get pulp pipe in the outer hole sealing section up for safekeeping, the vertical section part of get pulp pipe are exposed outside and its mouth of pipe of polyurethane hole sealing section and are higher than and expand the macroporous generating line of going up. The beneficial effects of the utility model are that, can effectively eliminate the shrinkage joint to the influence of the sealed effect of hole sealing, the hole sealing is effectual, and the pressure -bearing is high, and the hole sealing is fast.
Description
Technical field
The utility model relates to the hole sealing structure of near-horizontal hole, particularly a kind of nearly level high pressure-bearing drilling and sealing structure.
Background technology
The sealing of hole of high pressure-bearing near-horizontal hole is applied wider in the engineerings such as grouting in coal bed fracturing extraction or protect.Existing sealing of hole mode is included in pressure-bearing hole and forms cement mortar sealing of hole section and polyurethane sealing of hole section, due to the particularity of near-horizontal hole, when sealing of hole, cement mortar gravitate, hole pipe middle and lower part shutoff is tight, but shrinkage joint or empty top easily appear in the circular arc top of hole pipe, a tight shutoff cross section can not be formed, cause plugging effect poor.At present, the back-grouting sealing of hole mode of expansive cement is mostly adopted to carry out sealing of hole, to reduce or to eliminate shrinkage joint or empty top.But bring the sealing of hole time long, the inefficient deficiency of sealing of hole.And nonetheless, be also difficult to reach the pressure-bearing hole sealing of hole requirement under high pressure.For this reason, require further improvement.
Summary of the invention
The purpose of this utility model is exactly for the deficiencies in the prior art, and provide a kind of nearly level high pressure-bearing drilling and sealing structure, this hole sealing structure is made up of two sealing of hole sections, wherein, outer sealing of hole section diameter is greater than interior sealing of hole section diameter, and its sealing of hole is effective, pressure-bearing is high, and sealing of hole speed is fast.
For realizing aforementioned object, the utility model adopts following technical scheme.
A kind of nearly level high pressure-bearing drilling and sealing structure, be made up of interior sealing of hole section and outer sealing of hole section, the linkage section that in outer sealing of hole Duan Shangyu, sealing of hole section connects is by solidifying to form with the mode of interior sealing of hole segment sync grout injection; Inside and outside sealing of hole section is respectively formed in the boring of high pressure-bearing and expanded hole, and this expanded hole is positioned at the orifice part that high pressure-bearing is holed, and the interior step that expanded hole and high pressure-bearing are formed between holing has the part being positioned at high pressure-bearing and holing above Up Highway UHW.
Adopt this hole sealing structure of preceding solution, be made up of interior sealing of hole section and outer sealing of hole section, the linkage section that in outer sealing of hole Duan Shangyu, sealing of hole section connects is by solidifying to form with the mode of interior sealing of hole segment sync grout injection; Cement section diameter in its outer sealing of hole section is greater than interior sealing of hole section diameter, and has the cross section covering interior sealing of hole section Up Highway UHW part.Even if interior sealing of hole section Up Highway UHW position is formed with shrinkage joint or empty top, this shrinkage joint or empty top also can block by the cementing section part of outer sealing of hole section, and can not be through with the external world, thus guarantee sealing of hole effect, reach the object of high pressure-bearing.This hole sealing structure both can utilize pressure break pipe carry out pressure break and pressure break anti-reflection after device in Gas extraction; Also pressure break pipe can be utilized to carry out pressure grouting, for the reinforcing to soft crag.
Preferably, a part of pipeline section of Grouting Pipe and pressure break pipe is all sealed up for safekeeping in described interior sealing of hole section and outer sealing of hole section, multiple weep hole is provided with in floral tube shape on the pipeline section that pressure break pipe is positioned at sealing of hole section front end, pressure break pipe is also provided with flexible plasma resistance section, this flexible plasma resistance section is positioned between the floral tube section of pressure break pipe and sealing of hole section; Described outer sealing of hole section also comprises the polyurethane sealing of hole section be positioned at outside linkage section; The mouth of pipe of described Grouting Pipe and pressure break pipe exposes polyurethane sealing of hole section outside; Also seal the horizontal segment part of L shape slurry recovering tube in outer sealing of hole section up for safekeeping, the perpendicular straight part of slurry recovering tube exposes polyurethane sealing of hole section outside, and the nozzle position of slurry recovering tube is higher than the Up Highway UHW 30cm of described expanded hole.To facilitate once grouting to form two cementing sections, guarantee that sealing of hole efficiency is high, sealing of hole is effective.
Preferably, described flexible plasma resistance section is being banded on pressure break pipe of horsetail shape by strip-shaped fibrous fabric.The horsetail shape structure formed to utilize strip-shaped fibrous fabric, guarantees that flexible plasma resistance section can forward enter in the boring of high pressure-bearing with pressure break pipe smoothly, again can reverse block water mud, and easy to make, low cost of manufacture.
The beneficial effects of the utility model are, effectively can eliminate shrinkage joint or the impact of empty top on sealing of hole sealing effectiveness, sealing of hole is effective, and pressure-bearing is high, and sealing of hole speed is fast.
Accompanying drawing explanation
Fig. 1 is hole sealing structure schematic diagram of the present utility model.
Fig. 2 is the part-structure schematic diagram during the A-A of Fig. 1 analyses and observe.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described, but therefore the utility model is not limited among described scope of embodiments.
See Fig. 1, Fig. 2, a kind of nearly level high pressure-bearing drilling and sealing structure, be made up of interior sealing of hole section and outer sealing of hole section, the linkage section that in outer sealing of hole Duan Shangyu, sealing of hole section connects is by solidifying to form with the mode of interior sealing of hole segment sync grout injection; Inside and outside sealing of hole section is respectively formed in high pressure-bearing boring 1 and expanded hole 2, this expanded hole 2 is positioned at the orifice part of high pressure-bearing boring 1, expanded hole 2 is holed at Down Highway position and described high pressure-bearing 1 inscribe, and in being formed between 1 to hole at expanded hole 2 and high pressure-bearing, step has the part being positioned at high pressure-bearing and holing above 1 Up Highway UHW.
A part of pipeline section of Grouting Pipe 3 and pressure break pipe 4 is all sealed up for safekeeping in described interior sealing of hole section and outer sealing of hole section, Grouting Pipe 3 and pressure break pipe 4 are fixed together by embracing folder 7, multiple weep hole 41 is provided with in floral tube shape on the pipeline section that pressure break pipe 4 is positioned at sealing of hole section front end, pressure break pipe 4 is also provided with flexible plasma resistance section 42, this flexible plasma resistance section 42 is being banded on pressure break pipe 4 of horsetail shape by strip-shaped fibrous fabric, and between the floral tube section and interior sealing of hole section of pressure break pipe 4; Outer sealing of hole section also comprises the polyurethane sealing of hole section 2a of the 1m length be positioned at outside linkage section; The mouth of pipe of Grouting Pipe 3 and pressure break pipe 4 exposes polyurethane sealing of hole section 2a outside, and the outer end mouth of pipe of pressure break pipe 4 is provided with snap joint 8; Also seal the horizontal segment part of L shape slurry recovering tube 5 in outer sealing of hole section up for safekeeping, the perpendicular straight part of slurry recovering tube 5 exposes polyurethane sealing of hole section 2a outside, and the nozzle position of slurry recovering tube 5 is higher than the Up Highway UHW 30cm of described expanded hole 2.
Wherein, multiple injected holes 31 that grout pouring is provided with by floral tube shape inner end in Grouting Pipe 3 realize, return slurry by slurry recovering tube 5 horizontal segment be provided with return slurry hole 51 flow in slurry recovering tube 5, the stop valve 6 of orderly close-down slurry recovering tube 5 and Grouting Pipe 3 mouth of pipe after slip casting completes.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technician in the art according to design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection domain of claims.
Claims (3)
1. a nearly level high pressure-bearing drilling and sealing structure, is characterized in that, be made up of interior sealing of hole section and outer sealing of hole section, and the linkage section that in outer sealing of hole Duan Shangyu, sealing of hole section connects is by solidifying to form with the mode of interior sealing of hole segment sync grout injection; Inside and outside sealing of hole section is respectively formed in high pressure-bearing boring (1) and expanded hole (2), this expanded hole (2) is positioned at the orifice part of high pressure-bearing boring (1), and the hole interior step that formed between (1) of expanded hole (2) and high pressure-bearing has the part being positioned at high pressure-bearing and holing above (1) Up Highway UHW.
2. nearly level high pressure-bearing drilling and sealing structure according to claim 1, it is characterized in that: a part of pipeline section all sealing Grouting Pipe (3) and pressure break pipe (4) in described interior sealing of hole section and outer sealing of hole section up for safekeeping, multiple weep hole (41) is provided with in floral tube shape on the pipeline section that pressure break pipe (4) is positioned at sealing of hole section front end, pressure break pipe (4) is also provided with flexible plasma resistance section (42), between the floral tube section that this flexible plasma resistance section (42) is positioned at pressure break pipe (4) and sealing of hole section; Described outer sealing of hole section also comprises the polyurethane sealing of hole section (2a) be positioned at outside linkage section; The mouth of pipe of described Grouting Pipe (3) and pressure break pipe (4) exposes polyurethane sealing of hole section (2a) outside; The horizontal segment part of L shape slurry recovering tube (5) is also sealed up for safekeeping in outer sealing of hole section, the perpendicular straight part of slurry recovering tube (5) exposes polyurethane sealing of hole section (2a) outside, and the nozzle position of slurry recovering tube (5) is higher than the Up Highway UHW 30cm of described expanded hole (2).
3. nearly level high pressure-bearing drilling and sealing structure according to claim 2, is characterized in that: described flexible plasma resistance section (42) is being banded on pressure break pipe (4) of horsetail shape by strip-shaped fibrous fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520605603.4U CN204827355U (en) | 2015-08-11 | 2015-08-11 | Nearly competent pressure -bearing drilling hole sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520605603.4U CN204827355U (en) | 2015-08-11 | 2015-08-11 | Nearly competent pressure -bearing drilling hole sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204827355U true CN204827355U (en) | 2015-12-02 |
Family
ID=54684966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520605603.4U Expired - Fee Related CN204827355U (en) | 2015-08-11 | 2015-08-11 | Nearly competent pressure -bearing drilling hole sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204827355U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089548A (en) * | 2015-08-11 | 2015-11-25 | 重庆市能源投资集团科技有限责任公司 | Nearly horizontal high pressure-bearing drilling sealing method and sealing structure |
| CN105756700A (en) * | 2016-03-11 | 2016-07-13 | 中铁十八局集团有限公司 | Construction method and hole sealing structure for super-large section tunnel for traversing coal measure strata section |
-
2015
- 2015-08-11 CN CN201520605603.4U patent/CN204827355U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089548A (en) * | 2015-08-11 | 2015-11-25 | 重庆市能源投资集团科技有限责任公司 | Nearly horizontal high pressure-bearing drilling sealing method and sealing structure |
| CN105756700A (en) * | 2016-03-11 | 2016-07-13 | 中铁十八局集团有限公司 | Construction method and hole sealing structure for super-large section tunnel for traversing coal measure strata section |
| CN105756700B (en) * | 2016-03-11 | 2019-01-22 | 中铁十八局集团有限公司 | Large section tunnel wears the construction method and hole sealing structure of coal measure strata section |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105735364B (en) | Concrete joint waterproof system, construction method and the protection component for the system | |
| CN102979478B (en) | Water stopping device for water inrush borehole drilling | |
| CN103470212B (en) | Active drilling and hole sealing device and method | |
| CN204000838U (en) | The anti-Flow Structure Around of diaphragm wall capsule-type | |
| CN204827355U (en) | Nearly competent pressure -bearing drilling hole sealing structure | |
| CN206874296U (en) | A kind of tunnel hollow bolt grouting device | |
| CN203362181U (en) | Mud jacking film bag for water resistance and leaking stoppage in tunnel construction | |
| CN207363261U (en) | The antipriming of outer wall template through-wall bolt | |
| CN105089548A (en) | Nearly horizontal high pressure-bearing drilling sealing method and sealing structure | |
| CN206539357U (en) | The quick grouting device of self-feeding anchor pile | |
| CN206942762U (en) | A kind of advanced rig filling system leakage preventing device | |
| CN203655220U (en) | Device for sealing drill hole for gas extraction through air bag blocking and grouting under pressure | |
| CN204960882U (en) | Coal mine underground hydraulic fracturing drilling and hole sealing device | |
| CN205330611U (en) | Mining hole packer | |
| CN205875188U (en) | Pressure -bearing precipitation well plugging device | |
| CN103967444A (en) | Gas extraction hole drilling hole sealing technology in manner of two-end self-blocking and under pressure | |
| CN206111135U (en) | Dynamic sealing structure of gas drainage drilling | |
| CN204827356U (en) | Nearly competent pressure -bearing drilling hole sealing device | |
| CN205349295U (en) | Gas drainage under suction hole packer | |
| CN205370587U (en) | Broken country rock deep hole slip casting reinforcing apparatus in colliery | |
| CN202970614U (en) | Water burst drilling and water sealing device | |
| CN106640159A (en) | Connecting sleeve sealing structure for self-drilling type hollow grouting anchors | |
| CN105064950A (en) | Approximately horizontal high-pressure-bearing drill hole sealing device | |
| CN104141286A (en) | Construction adit blocking structure | |
| CN204691791U (en) | The waterproof construction of rectangular top pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |