CN104131532B - A kind of blocking method for karst and structure - Google Patents
A kind of blocking method for karst and structure Download PDFInfo
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- CN104131532B CN104131532B CN201410361677.8A CN201410361677A CN104131532B CN 104131532 B CN104131532 B CN 104131532B CN 201410361677 A CN201410361677 A CN 201410361677A CN 104131532 B CN104131532 B CN 104131532B
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Abstract
The invention discloses a kind of blocking method for karst and structure, Semen Glycines (4) and quick-setting mortar (3) mix and blend being coated on is positioned over the breakthrough import of karst (1) by it in a film bag (2), Semen Glycines (4) utilized the dilatancy of self that film bag (2) inner volume is expanded before quick-setting mortar (3) solidifies, quick-setting mortar (3) quick solidification while film bag (2) volume produces and expands, quick-setting mortar (3) solidifies caudacoria bag (2) and karst (1) periphery laminating consolidation and produces frictional force and stop flowing, thus reach the purpose of karst (1) leak stopping.The present invention not only construction difficulty is little, and working procedure is simple, and reduced investment has also reached good plugging effect, can be in karst leakage stopping technology field wide popularization and application.
Description
Technical field
The present invention relates to a kind of blocking method for karst and film pocket type leak stopping structure, belong to Hydraulic and Hydro-Power Engineering technical field.
Background technology
At present in the hydroelectric project of the area such as Guizhou, Guangxi, when water retaining structure be seated lithology be limestone basis time, often limestone grow more karst, for preventing karst generation Seepage, typically taking to carry out karst impervious grouting, karst cavity takes chemical grouting time bigger.When taking impervious grouting, typically dense mortar or pea gravel concreten are injected karst by grouting equipment, when karst seepage velocity is higher, above leaking-stopping measure often ends in failure, and traces it to its cause, after dense mortar or pea gravel concreten inject karst, the diluting effect seeped water, dense mortar or pea gravel concreten are difficult to solidification within a short period of time, and its main component cement is taken away by infiltration, even if staying part microlith in karst, still it is difficult to reach the purpose of leak stopping；When karst cavity is relatively big and seepage velocity is the biggest, typically take chemical grouting, its grouting material has waterglass, acrylates, soluble polyurethane, elastic polyurethane and lignin slurry etc., its impervious leakage-stopping is respond well, but grouting material is expensive, and chemical grouting construction difficulty is relatively big, and working procedure is complicated, being easily generated chemical poisoning in filling process, security risk is big.Therefore, existing karst leaking-stopping measure is dissatisfactory.
Summary of the invention
It is an object of the invention to provide a kind of blocking method for karst and structure, to overcome the deficiencies in the prior art.
The technical scheme is that such: it is a kind of blocking method for karst, it uses a kind of film pocket type leak stopping structure, this film pocket type leak stopping structure is by Semen Glycines and quick-setting mortar mix and blend the breakthrough import being coated in a film bag and being positioned over karst, film bag can be got into the breakthrough of karst by the induced effect of seepage flow current, and in this process, Semen Glycines utilized the dilatancy of self that film bag inner volume is expanded before quick-setting mortar solidifies, quick-setting mortar quick solidification while the long-pending generation of film bag expands, quick-setting mortar solidifies caudacoria bag and karst periphery laminating consolidation and produces frictional force and stop flowing, thus reach the purpose of karst leak stopping.This leak stopping mode, is to utilize the mobility of seepage flow self to go to block seepage flow, therefore has preferable guidance quality.
Therefore, present invention employs such karst film pocket type leak stopping structure, it is to arrange at least one film bag that can produce flowing with current in the breakthrough import of karst, and film bag is enclosed construction, is coated with the Semen Glycines mixed together and quick-setting mortar in film bag.Certainly, in film bag, the ratio of quick-setting mortar and Semen Glycines is also extremely important in the technical program, as Semen Glycines is less, then it is difficult to make film bag obtain bigger dilatancy, and Semen Glycines is more, film bag may be caused again to be destroyed, or cause the rapid hardening effect of quick-setting mortar bad.Consider, it is preferred that in each film bag, the mass ratio of quick-setting mortar and Semen Glycines is 3:1～10:1.It addition, the closed bag shaped structure that film bag preferably natural rubber is made, it is possible to use artificial rubber or other material with high fluidity, pliability and water resistance to make.Film bag shape is preferably flat bag like construction, and its one end or two ends are provided with tip.
The invention has the beneficial effects as follows:
Compared with prior art, the present invention is on the premise of meeting leak stopping requirement, and film bag has high fluidity, pliability and water resistance, can not only fill karst different size cavity, and will not be punctured by stone tooth, and internal quick-setting mortar and Semen Glycines will not be overflowed.Secondly, Semen Glycines can cause film bag to produce large volume expansion after mixing quick-setting mortar, and quick-setting mortar possesses relatively high viscosity, film bag is long-pending expand while can quick solidification, film bag and karst periphery laminating consolidation is caused to produce frictional force and stop flowing, infiltration will be unable to be pushed out karst, thus reaches the purpose of karst leak stopping.The present invention not only construction difficulty is little, and working procedure is simple, and reduced investment has also reached good plugging effect, can be in karst leakage stopping technology field wide popularization and application.
Accompanying drawing explanation
Fig. 1 is the film pocket type leak stopping structure schematic diagram of the present invention.
Description of reference numerals: 1-karst, 2-film bag, 3-quick-setting mortar, 4-Semen Glycines.
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
The present invention is implemented: as shown in Figure 1, the present invention mainly uses a kind of film pocket type leak stopping structure, this film pocket type leak stopping structure, outside is a film bag 2, film bag 2 has the quality of softness, and has good stretch-resistance and enough intensity, and must also have water proofing property, therefore the selection of material is important, and the thin film generally using natural rubber to be processed into sews.Semen Glycines 4 and the quick-setting mortar 3 of mix and blend is loaded in film bag 2, then the seepage mouth of karst 1 it is placed on after being sealed by film bag 2, so, Semen Glycines 4 utilized the dilatancy of self that film bag 2 inner volume is expanded before quick-setting mortar 3 solidifies, and film bag 2 can constantly be got into towards the seepage mouth in karst 1 under the drive of seepage flow, simultaneously, quick-setting mortar 3 quick solidification while film bag 2 volume produces and expands, quick-setting mortar 3 solidifies caudacoria bag 2 and karst 1 periphery laminating consolidation and produces frictional force and stop flowing, thus reach the purpose of karst 1 leak stopping.
In order to make film bag 2 can preferably clamp-on the trickle seepage mouth of karst 1, film bag 2 can use squashed structure, and its one end or two ends are provided with tip, so along with the flowing of film bag 2, blocks trickle seepage mouth more easily.
Certainly, in the present invention, Semen Glycines can also use other beans to replace, or uses other to have the material replacement that chance water slowly expands.
Certainly, being more than the concrete exemplary applications of the present invention, the present invention also has the technical scheme that other embodiment, all employing equivalents or equivalent transformation are formed, within all falling within protection domain of the presently claimed invention.
Claims (4)
1. the blocking method for karst, it is characterized in that: use film pocket type leak stopping structure, by Semen Glycines (4) and quick-setting mortar (3) mix and blend and utilize film bag (2) to be positioned over the breakthrough import of karst (1) after being coated with, Semen Glycines (4) utilized the dilatancy of self that film bag (2) inner volume is expanded before quick-setting mortar (3) solidifies, quick-setting mortar (3) quick solidification while film bag (2) volume produces and expands, quick-setting mortar (3) solidifies caudacoria bag (2) and karst (1) periphery laminating consolidation and produces frictional force and stop flowing, thus reach the purpose of karst (1) leak stopping.
2. the karst film pocket type leak stopping structure for method described in claim 1, including karst (1), it is characterized in that: the breakthrough import at karst (1) arranges at least one film bag (2) that can produce flowing with current, film bag (2) is enclosed construction, is coated with the Semen Glycines (4) and quick-setting mortar (3) mixed together in film bag (2)；Described film bag (2) is the closed bag shaped structure that natural rubber is made.
Karst film pocket type leak stopping structure the most according to claim 2, it is characterised in that: in each film bag (2), the mass ratio of quick-setting mortar (3) and Semen Glycines (4) is 3:1～10:1.
4. according to the karst film pocket type leak stopping structure described in claims 2, it is characterised in that: described film bag (2) is squashed structure, and its one end or two ends are provided with tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410361677.8A CN104131532B (en) | 2014-07-28 | 2014-07-28 | A kind of blocking method for karst and structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410361677.8A CN104131532B (en) | 2014-07-28 | 2014-07-28 | A kind of blocking method for karst and structure |
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| Publication Number | Publication Date |
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| CN104131532A CN104131532A (en) | 2014-11-05 |
| CN104131532B true CN104131532B (en) | 2016-08-17 |
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| CN201410361677.8A Active CN104131532B (en) | 2014-07-28 | 2014-07-28 | A kind of blocking method for karst and structure |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480902B (en) * | 2014-11-21 | 2016-08-24 | 淮海工学院 | A kind of blocking method in concrete dam gap |
| CN107687556B (en) * | 2017-09-28 | 2019-09-17 | 山东建筑大学 | A kind of automatic leakage-blocking negative pressure transportation pipeline configuration |
| CN107687557B (en) * | 2017-09-28 | 2019-09-17 | 山东建筑大学 | A kind of automatic leakage-blocking conveyance conduit structure with pressure |
| CN111424695B (en) * | 2020-04-17 | 2022-01-07 | 中国水利水电第八工程局有限公司 | Seepage-proofing and leakage-stopping method for deep-buried karst pipeline |
| CN112796295B (en) * | 2021-01-07 | 2022-06-14 | 北京科技大学 | Method for extruding compact rock-soil body through soybean capsule air inflation |
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| CN202755349U (en) * | 2012-09-27 | 2013-02-27 | 北京金兴龙宇帐篷有限公司 | Water swellable bag |
| CN103074869A (en) * | 2013-02-05 | 2013-05-01 | 张永忠 | Dam leakage stopping method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004036245A (en) * | 2002-07-04 | 2004-02-05 | Shinagawa Yozai Kk | Water cut-off agent using bentonite |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202755349U (en) * | 2012-09-27 | 2013-02-27 | 北京金兴龙宇帐篷有限公司 | Water swellable bag |
| CN103074869A (en) * | 2013-02-05 | 2013-05-01 | 张永忠 | Dam leakage stopping method |
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| 卵砾石次生覆盖层防渗灌浆施工技术研究;曾金石;《中国水利学会第9此水利水电地基与基础工程学术会议》;20070816;第2.4节 * |
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