CN204419114U - The hole sealing device of a kind of limestone area prospecting boring - Google Patents
The hole sealing device of a kind of limestone area prospecting boring Download PDFInfo
- Publication number
- CN204419114U CN204419114U CN201420435909.5U CN201420435909U CN204419114U CN 204419114 U CN204419114 U CN 204419114U CN 201420435909 U CN201420435909 U CN 201420435909U CN 204419114 U CN204419114 U CN 204419114U
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- propeller
- blanking plug
- clay
- boring
- sealing device
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Abstract
The utility model relates to the hole sealing device of a kind of limestone area prospecting boring, comprise blanking plug (4), clay ball (8), propeller (6), cement grout (9), blanking plug (4) is positioned at grey scar reducing interface, clay ball (8) is on blanking plug (4), propeller (6) is positioned on clay ball (8), and cement grout (9) is positioned on propeller (6).The defect that prior art slurries run off can be solved, also there is the features such as construction is simple, reliable in quality.
Description
Technical field
The utility model relates to the hole sealing device of limestone area prospecting boring, and the boring that being mainly used in limestone area has solution cavity to grow needs the situation of sealing of hole.
Background technology
Limestone area solution cavity is grown, and after prospecting boring completes, if do not carry out sealing of hole, prospecting boring will become underflow circulation passage, and under groundwater table fluctuation, the soil body of upper cover layer flows to solution cavity by boring, thus form soil cave.Prospecting boring has become in engineering a key factor of bringing out soil cave, therefore, needs to carry out sealing of hole to prospecting boring.In prior art, normal employing directly backfills the measure such as core, satchel shutoff post-grouting, and the measure of backfill core is owing to can not cut off the hydraulic connection of karst water and upper cover layer, and its effect is very little; Make cylindric after satchel shutoff post-grouting measure normally adopts bag of cement or gunnysack to load onto a certain amount of cement, drilling rod is utilized to be sent to grey scar, form water proof passage, then it is in the milk, after slurry consolidation, cut off the hydraulic connection of upper cover layer and karst water, avoid boring to become karst water passage.Satchel shutoff post-grouting technology can be holed to a certain extent in shutoff; but during actual enforcement; satchel block head often can because of distortion or scar injustice; sometimes even whole block head falls into solution cavity; slurries easily flow into solution cavity along contact surface, cause boring not have slurries can not reach shutoff drilling effect.
Summary of the invention
The hole sealing device of a kind of limestone area prospecting boring, it is characterized in that: comprise blanking plug, clay ball, propeller, cement grout, blanking plug is positioned at grey scar reducing interface, and clay ball is on blanking plug, propeller is positioned on clay ball, and cement paste is positioned on propeller.
Further, the shape of blanking plug is that reducing is cylindric or coniform, and its length should be greater than maximum diameter of hole, and upper diameter size should between upper bore aperture and reducing aperture, bottom, and its material can be timber, metal or plastic product.
Further, clay ball sphere diameter is slightly less than boring aperture, adopts clay or silty clay to make.
Further, angle of rake shape is square or cylindrical, the length of side or diameter suitable with clay ball diameter, material can be timber, metal or plastic product.
In order to overcome existing hole sealing technology defect, the utility model provides a kind of prospecting drilling and sealing device newly, adopts this technology thoroughly can solve the defect of prior art slurries loss, also has the features such as construction is simple, reliable in quality.
The utility model solves the technical scheme that its technical problem adopts: this technology is for reconnoitring the sealing of hole of boring at scar place, limestone area, and main device comprises blanking plug, sealing of hole clay ball, propeller, sealing of hole slurries.Limestone area prospecting boring adopts larger aperture to construct to limestone scar in superstratum, continue to creep into adopting smaller aperture due during limestone scar, reducing step is defined like this at limestone and superstratum, hole to be drilled complete after, blanking plug is utilized to be pushed to grey scar reducing interface, then clay ball and propeller is thrown in boring successively, utilize borer drill rod by propeller and clay ball force feed to blanking plug, itself and blanking plug is made to form water barrier device clay ball extruding, finally utilize drilling rod, cement grout is filled boring from lower to upper, after cement grout consolidation, stop underground water to flow into solution cavity from boring, prevent the generation of soil cave, reach the object of sealing of hole.
Usual blanking plug is reducing cylinder, and for preventing blanking plug upset in boring, its length should be greater than boring aperture, top; For convenience of blanking plug is delivered to grey scar, its diameter at butt end should be less than aperture, top; For preventing blanking plug from falling into solution cavity, its diameter at butt end should be greater than aperture, bottom; General diameter at butt end gets the average in upper and lower aperture, reducing place; Top diameter should be less than aperture, bottom, the half in aperture, general desirable bottom, or makes taper shape.Blanking plug should have certain shear strength, needs to bear top rod and send angle of rake pressure.
Clay ball will adopt clay to make, if condition restriction, when need adopt silty clay, thin layer plastic sheeting should be adopted to be wrapped by clay ball and put into hole again, prevents silty clay from meeting water and scatters, can not become water barrier.The sizableness of clay ball sphere diameter size and blanking plug.
Propeller is to be squeezed by clay ball, clay ball is squeezed along boring surrounding, clay and hole wall, blanking plug is combined closely, blocks the hydraulic connection of boring top underground water and limestone karst water, prevent cement grout to run off.Propeller is generally cylinder, and its diameter is general and clay ball sphere diameter is suitable, and length is generally greater than boring aperture.
The beneficial effects of the utility model are, adopting utilizes blanking plug and clay ball thoroughly to cut off the hydraulic connection of top underground water and karst water, cement grout does not have infiltration lane to run off, and can form complete induration, solves the defect that cement grout in the past runs off.In addition, this technology construction method is very simple, without the need to special training, any board workman all can implement.Adopt the material used by this technology to be generally timber, clay and cement grout, need the material used can to buy or gather materials on the spot everywhere, shutoff cost is very low.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is limestone area reducing boring schematic diagram.
Fig. 2 throws in blanking plug, clay ball, propeller schematic diagram.
Fig. 3 is hole-sealing grouting schematic diagram.
Fig. 4 is blanking plug sectional drawing.
Fig. 5 is blanking plug sectional view 1.
Fig. 6 is blanking plug sectional view 2.
Fig. 7 propeller sectional drawing.
Fig. 8 propeller sectional view.
1. limestones in figure, 2. limestone scar, 3. covering layer, 4. blanking plug, 5. clay ball, 6. propeller, 7. drilling rod, 8. clay water-stop body, 9. cement grout.
Detailed description of the invention
Embodiment one:
In FIG, drill hole of drilling machine adopts 130mm aperture to be drilled into limestone scar 2 in covering layer 1, then 110mm aperture is adopted to continue to creep in limestone 3, until holed, drilling rod 7 is proposed, adopt drilling rod 7 that blanking plug 4 is pushed to limestone scar 2, drilling rod 7 is proposed, then clay ball 5 and propeller 6 is thrown in, utilize drilling rod 7 that propeller 6 and clay ball 5 are delivered to blanking plug 4, suitable pressurization, propeller 6 is utilized to be squeezed by clay ball 7, form clay water-stop body 8, finally utilize drilling rod 7 as grouting channel, cement grout 9 is filled boring from lower to upper from propeller 6, thus reach the object of sealing of hole.
Above disclosedly be only preferred embodiment of the present utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (4)
1. the hole sealing device of a limestone area prospecting boring, it is characterized in that: comprise blanking plug (4), clay ball (8), propeller (6), cement grout (9), blanking plug (4) is positioned at grey scar reducing interface, clay ball (8) is on blanking plug (4), propeller (6) is positioned on clay ball (8), and cement grout (9) is positioned on propeller (6).
2. hole sealing device according to claim 1, it is characterized in that: the shape of blanking plug (4) is that reducing is cylindric or coniform, its length should be greater than maximum diameter of hole, upper diameter size should between upper bore aperture and reducing aperture, bottom, and its material can be timber, metal or plastic product.
3. hole sealing device according to claim 1, is characterized in that: clay ball (8) sphere diameter is slightly less than boring aperture, adopts clay or silty clay to make.
4. hole sealing device according to claim 1, is characterized in that: the shape of propeller (6) is square or cylindrical, the length of side or diameter suitable with clay ball (8) diameter, material can be timber, metal or plastic product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420435909.5U CN204419114U (en) | 2014-07-31 | 2014-07-31 | The hole sealing device of a kind of limestone area prospecting boring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420435909.5U CN204419114U (en) | 2014-07-31 | 2014-07-31 | The hole sealing device of a kind of limestone area prospecting boring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419114U true CN204419114U (en) | 2015-06-24 |
Family
ID=53469496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420435909.5U Expired - Fee Related CN204419114U (en) | 2014-07-31 | 2014-07-31 | The hole sealing device of a kind of limestone area prospecting boring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204419114U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104988923A (en) * | 2015-07-08 | 2015-10-21 | 上海建工二建集团有限公司 | Leaking stoppage assistant based on explosive-polymerization reaction and using method for leaking stoppage assistant |
| CN110056326A (en) * | 2019-04-29 | 2019-07-26 | 中铁第四勘察设计院集团有限公司 | Hole sealing structure and implementation method for drilling with bead type solution cavity |
| CN110185047A (en) * | 2019-05-31 | 2019-08-30 | 湖北建科国际工程有限公司 | A kind of geologic prospect drilling earth-filling method |
| CN115263233A (en) * | 2022-08-26 | 2022-11-01 | 广州地铁设计研究院股份有限公司 | Hole sealing method after drilling exploration |
-
2014
- 2014-07-31 CN CN201420435909.5U patent/CN204419114U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104988923A (en) * | 2015-07-08 | 2015-10-21 | 上海建工二建集团有限公司 | Leaking stoppage assistant based on explosive-polymerization reaction and using method for leaking stoppage assistant |
| CN110056326A (en) * | 2019-04-29 | 2019-07-26 | 中铁第四勘察设计院集团有限公司 | Hole sealing structure and implementation method for drilling with bead type solution cavity |
| CN110185047A (en) * | 2019-05-31 | 2019-08-30 | 湖北建科国际工程有限公司 | A kind of geologic prospect drilling earth-filling method |
| CN115263233A (en) * | 2022-08-26 | 2022-11-01 | 广州地铁设计研究院股份有限公司 | Hole sealing method after drilling exploration |
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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: 20150624 Termination date: 20160731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |