CN204753654U - Underground continuous wall reentrant corner position piping block structure - Google Patents
Underground continuous wall reentrant corner position piping block structure Download PDFInfo
- Publication number
- CN204753654U CN204753654U CN201520436424.2U CN201520436424U CN204753654U CN 204753654 U CN204753654 U CN 204753654U CN 201520436424 U CN201520436424 U CN 201520436424U CN 204753654 U CN204753654 U CN 204753654U
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- Prior art keywords
- cofferdam
- diaphragm wall
- block structure
- corner position
- underground continuous
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Abstract
The utility model relates to an underground continuous wall reentrant corner position piping block structure, this block structure is through a little inserting the honeycomb duct leaking of reentrant corner position to building first cofferdam with the bagged cement, building second way cofferdam in the periphery in first cofferdam, insert the rubble in the hole capital after selling all securities of first cofferdam and underground continuous wall formation, the rubble top is equipped with the apron, covers the pressure with the bagged cement on the apron, builds sealing material in the hole capital after selling all securities of second way cofferdam and underground continuous wall formation. When this block structure can guarantee going on smoothly of foundation ditch engineering, when the piping appeared in diaphragm wall reentrant corner position, the timely shutoff of carrying on was handled, had guaranteed constructor's the person and property safety, provided necessary technical guarantee smoothly for the construction.
Description
[technical field]
The utility model relates to a kind of diaphragm wall internal corner part piping plugging structure, belongs to deep foundation ditch waterproof and leaking stoppage technology field.
[background technology]
According to place hydrogeological conditions and the excavation of foundation pit degree of depth, larger on foundation ditch impact is shallow-layer diving and deep water in confined.When base pit engineering excavates; face severe artesian water problem; for the surrounding enviroment of protection construction; base pit engineering diaphragm wall enters rock stratum and cuts off artesian water inside and outside foundation ditch; but the underground water affecting base pit engineering is the diving of superficial part and the artesian water in deep, adopt two filter dewatering well to carry out precipitation for these two kinds of underground water, top filter is positioned at diving position; bottom filter is positioned at soil with confined aquifer, therefore the sealing performance of diaphragm wall seam is most important to excavation of foundation pit safety.If do not reach stagnant water effect, easily there is percolating water situation in diaphragm wall in Excavation Process, causes foundation ditch periphery earth's surface water level decreasing, cause ground settlement, crisis surrounding building safety, if process not in time, then develop into water burst risk.
In order to implement process to foundation ditch " water burst, gush sand " accident effectively in an orderly manner, " water burst, gush sand " degree is avoided to expand to greatest extent, make every effort to timely prevention " Sand " phenomenon, reduce the subsequent construction pressure of excavation of foundation pit, event harm is dropped to minimum point, proposes piping plugging structure outside a kind of deep foundation ditch diaphragm wall.
[utility model content]
The purpose of this utility model is: for defect and the deficiency of prior art, provide a kind of diaphragm wall internal corner part piping plugging structure, while this plugging structure can ensure carrying out smoothly of base pit engineering, when there is piping in diaphragm wall internal corner part, carry out shutoff and process timely, ensure that the person and the property safety of constructor, is the technical guarantee carrying out providing necessity smoothly of constructing.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of diaphragm wall internal corner part piping plugging structure, comprise diaphragm wall, the excavation soil body, leakage point, mozzle, first cofferdam and second cofferdam, leakage point is positioned at the internal corner part of diaphragm wall and the excavation soil body, mozzle is inserted at the leakage point of internal corner part, mozzle front end is provided with valve, first cofferdam built by the cement that is simultaneously packed in bag, second cofferdam is built in the periphery in first cofferdam, wherein in the hole capital after selling all securities that first cofferdam and diaphragm wall are formed, insert rubble, cover plate is provided with above rubble, the cement that is on the cover board packed in bag again covers pressure, encapsulant is built in the hole capital after selling all securities that second cofferdam and diaphragm wall are formed.
In the utility model: described encapsulant is concrete or dual slurry, wherein said dual slurry is cement paste limit and water glass.
After adopting said method, the utility model beneficial effect is: while this plugging structure can ensure carrying out smoothly of base pit engineering, when there is piping in diaphragm wall internal corner part, carry out shutoff and process timely, ensure that the person and the property safety of constructor, is the technical guarantee carrying out providing necessity smoothly of constructing.
[accompanying drawing explanation]
Accompanying drawing described herein is used to provide to further understanding of the present utility model, forms a application's part, but does not form improper restriction of the present utility model, in the accompanying drawings:
Fig. 1 is structural representation of the present utility model.
In figure: 1. sacked cement; 2. encapsulant; 3. second cofferdam; 4. valve; 5. mozzle; 6. rubble; 7. first cofferdam; 8. leakage point; 9. diaphragm wall; 10. excavate the soil body; 11. cover plates.
[detailed description of the invention]
The utility model is described in detail, illustrative examples wherein and illustrate and be only used for explaining the utility model below in conjunction with accompanying drawing and specific embodiment, but not as to restriction of the present utility model.
As shown in Figure 1, a kind of diaphragm wall internal corner part piping plugging structure, comprise diaphragm wall 9, the excavation soil body 10, leakage point 8, mozzle 5, first cofferdam 7 and second cofferdam 3, leakage point 8 is positioned at the internal corner part of diaphragm wall 9 and the excavation soil body 10, mozzle 5 is inserted at the leakage point 8 of internal corner part, mozzle 5 front end is provided with valve 4, first cofferdam 7 built by the cement 1 that is simultaneously packed in bag, second cofferdam 3 is built in the periphery in first cofferdam 7, rubble 6 is inserted in the hole capital after selling all securities wherein formed with diaphragm wall 9 in first cofferdam 7, cover plate 11 is provided with above rubble 6, the cement 1 that is packed in bag on cover plate 11 again covers pressure, encapsulant 2 is built in the hole capital after selling all securities formed with diaphragm wall 9 in second cofferdam 3, described encapsulant 2 is concrete or dual slurry, and wherein said dual slurry is cement paste limit and water glass.
The injecting treatment method of the diaphragm wall internal corner part piping undertaken by above-mentioned plugging structure, is comprised the following steps:
(1), pick cutter cleaning leakage point: have comparatively obviously outstanding uneven phenomenon at diaphragm wall internal corner part, simply carry out picking cutter process, and clear up the foreign material of leakage point periphery;
(2), plug mozzle: caliber is installed on leakage point and is not less than Φ 100 mozzle, and install valve additional, make leakage point current unobstructed, contact closely with diaphragm wall leakage point simultaneously as far as possible;
(3), cofferdam: first cofferdam built by the cement that is packed in bag, and builds second cofferdam simultaneously;
(4), rubble is inserted: in the hole capital after selling all securities that first cofferdam and diaphragm wall are formed, insert rubble, then add a cover with plank, then the cement that is on the cover board packed in bag covers pressure;
(5), insert encapsulant: concreting in the hole capital after selling all securities that second cofferdam and diaphragm wall are formed, pouring concrete limit, limit pours into water glass, makes it rapid solidification; Or pouring into cement grout, pouring water glass in cement grouting limit, limit, makes it rapid solidification;
(6), valve-off;
(7), in the slip casting of diaphragm wall internal corner part: after valve closing, in cofferdam, peripheral place carries out concreting mortar, and makes it solidify.
The above is only better embodiment of the present utility model, therefore all equivalences done according to structure, feature and the principle described in the utility model patent claim change or modify, and are included in the utility model patent claim.
Claims (2)
1. a diaphragm wall internal corner part piping plugging structure, it is characterized in that: comprise diaphragm wall, the excavation soil body, leakage point, mozzle, first cofferdam and second cofferdam, leakage point is positioned at the internal corner part of diaphragm wall and the excavation soil body, mozzle is inserted at the leakage point of internal corner part, mozzle front end is provided with valve, first cofferdam built by the cement that is simultaneously packed in bag, second cofferdam is built in the periphery in first cofferdam, wherein in the hole capital after selling all securities that first cofferdam and diaphragm wall are formed, insert rubble, cover plate is provided with above rubble, the cement that is on the cover board packed in bag again covers pressure, encapsulant is built in the hole capital after selling all securities that second cofferdam and diaphragm wall are formed.
2. diaphragm wall internal corner part piping plugging structure according to claim 1, it is characterized in that: described encapsulant is concrete or dual slurry, wherein said dual slurry is cement paste limit and water glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520436424.2U CN204753654U (en) | 2015-06-24 | 2015-06-24 | Underground continuous wall reentrant corner position piping block structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520436424.2U CN204753654U (en) | 2015-06-24 | 2015-06-24 | Underground continuous wall reentrant corner position piping block structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204753654U true CN204753654U (en) | 2015-11-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520436424.2U Expired - Fee Related CN204753654U (en) | 2015-06-24 | 2015-06-24 | Underground continuous wall reentrant corner position piping block structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204753654U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895118A (en) * | 2015-06-24 | 2015-09-09 | 江苏省建筑科学研究院有限公司 | Underground diaphragm wall internal corner position piping plug structure and grouting processing method thereof |
| CN107761753A (en) * | 2017-10-17 | 2018-03-06 | 山东大学 | A kind of foundation ditch water burst rapid rescue slip casting method for blocking |
| CN110939150A (en) * | 2019-12-12 | 2020-03-31 | 周希圣 | Emergency rescue method for rapidly constructing large-hydraulic-slope-drop-ratio thin-wall structure in confined water inrush accident state |
-
2015
- 2015-06-24 CN CN201520436424.2U patent/CN204753654U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895118A (en) * | 2015-06-24 | 2015-09-09 | 江苏省建筑科学研究院有限公司 | Underground diaphragm wall internal corner position piping plug structure and grouting processing method thereof |
| CN107761753A (en) * | 2017-10-17 | 2018-03-06 | 山东大学 | A kind of foundation ditch water burst rapid rescue slip casting method for blocking |
| CN107761753B (en) * | 2017-10-17 | 2019-11-19 | 山东大学 | A kind of foundation pit water burst rapid rescue slip casting method for blocking |
| CN110939150A (en) * | 2019-12-12 | 2020-03-31 | 周希圣 | Emergency rescue method for rapidly constructing large-hydraulic-slope-drop-ratio thin-wall structure in confined water inrush accident state |
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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: 20151111 Termination date: 20160624 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |