CN203475467U - Base plate concrete bottom sealing structure - Google Patents
Base plate concrete bottom sealing structure Download PDFInfo
- Publication number
- CN203475467U CN203475467U CN201320528796.9U CN201320528796U CN203475467U CN 203475467 U CN203475467 U CN 203475467U CN 201320528796 U CN201320528796 U CN 201320528796U CN 203475467 U CN203475467 U CN 203475467U
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- flange cylinder
- flange
- bottom board
- concrete
- board concrete
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Abstract
The utility model discloses a base plate concrete bottom sealing structure. A flange cylinder is arranged in the middle of base plate concrete. The bottom part of the flange cylinder penetrates through the bottom face of the base plate concrete and extends to be located in a foundation pit of a soil foundation layer. A crushed rock layer is pre-laid in the foundation pit. The bottom part of the flange cylinder is arranged on the crushed rock layer. The top part of the flange cylinder is lower than the upper surface of the base plate concrete. The top part of the flange cylinder is connected with a flange plate, and concrete is poured on the flange plate. The structure further comprises a water guide pipe. The water guide pipe extends into the interior of the flange cylinder and goes deep into the crushed rock layer. The depth of the foundation pit is 50 to 80 cm. The diameter of the foundation pit is larger than that of the flange cylinder by 30 to 50 cm. Crushed rocks with diameters ranging from 4 cm to 6 cm are filled in the lower layer of the crushed rock layer while crushed rocks with diameters ranging from 1 cm to 3 cm are filled in the upper layer of the crushed rock layer, and the upper layer is leveled to the surface of the soil foundation layer. According to the utility model, the underground water seepage problem is solved by arranging the flange cylinder during the base plate concrete construction; the structure is simple and the construction is easy; not only is the quality guaranteed, but also the cost is reduced; and the efficacy is saved while the construction period is shortened.
Description
Technical field
The utility model relates to a kind of bottom board concrete back cover structure.
Background technology
Along with city constantly expands, Sewage Plant, water works, basement and pump station engineering are increasing, and the waterproof construction of underplate concrete requires increasingly strict.Back cover is the key link of high water level area underground structure, architecture construction.From play the effects such as sealing, load distribution, weightening finish with function back cover; From structure design back cover, be subject to the effects such as subgrade reaction, buoyancy force of underground water, pit shaft adhesion stress, working load; From construction technology, back cover is the position, deep at structure, is subject to that quicksand, pipe are readed aloud, carries out under mud scum, boulder impact.So back cover is one of major subjects that in high water level area underground structure, architecture construction, difficulty is larger.
Constructed in the past and laid concrete according to pouring order of concrete, or in concrete the method such as insert row water pipe, but all can not fundamentally solve the problem of underground infiltration, the method in past can not solve capillary channel infiltration in concrete, causes base plate face surface moisture, infiltration or the seeping phenomenons such as basement, Sewage Plant, water works and pumping plant.
Sealing collecting well with the method construction bottom board concrete that stays collecting well and dewatering well in the middle of the base plate in the past compares with dewatering well again, expense is too high, back cover poor effect, and time-consuming taking a lot of work, the concrete in well if just had no idea to construct when collecting well and the dewatering well sealing water yield is large, force construction and will cause concrete segregation phenomenon, water shutoff steel plate also cannot weld, and does not reach water sealing effect.
Bottom board concrete feature is:
(1) base plate is blocked up, leaks and is not easy to repair, if repaired from table, cures the symptoms, not the disease.
(2) condition is harsh.Have as site tissue and operating difficultiess such as Sewage Plant open caisson, pumping plants.
(3) operating difficulties.Excessive at some regional hydraulic pressure, directly pour concrete is difficult.
(4) second-rate.While using tremie method in the past, have conduit blow-by, pipe internal and external pressure balance, conduit such as move at the multiple channeling water factor to be difficult to overcome one by one, causes coagulation scholar to be washed in pouring, causes back cover to leak.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of bottom board concrete back cover structure that can solve underground seepage problem.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of bottom board concrete back cover structure arranges flange cylinder in the middle of bottom board concrete; The bottom of flange cylinder is also deeply positioned at the foundation ditch of soil matrix layer through bottom board concrete bottom surface, and foundation ditch is laid macadam in advance; Flange cylinder bottom is placed in above macadam; Flange cylinder top is lower than bottom board concrete upper surface; Flange cylinder top is connected with flange and above flange, builds concrete.
As preferably, also comprise aqueduct; Aqueduct stretches into flange cylinder inside and gos deep into macadam.
As preferably, foundation depth is 50～80cm; Foundation ditch diameter is than large 30～50 cm of flange cylinder diameter.
As preferably, the rubble that straightens footpath 4～6 cm is filled out by macadam lower floor, and upper strata is filled out and put 1～3 cm rubble and mutually concordant with soil matrix surface layer.
As preferably, flange cylinder inside fills out that to put 6～8 cm rubbles mutually concordant to soil matrix surface layer.
As preferably, the top of flange cylinder is than low 20～25 cm of bottom board concrete upper surface.
The beneficial effects of the utility model are:
Flange cylinder is set in bottom board concrete and solves underground seepage problem, simple in structure, construction easily, was both ensured the quality of products, and also can reduce costs, and saved effect, saved the duration.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model bottom board concrete back cover structure embodiment.
In figure, 1-bottom board concrete, 2-foundation ditch, 3-flange cylinder, 4-rubble, 5-drainage duct, 6-flange, concrete on 7-dish.
The specific embodiment
Fig. 1 is a kind of bottom board concrete back cover structure, by following construction method, constructs and forms:
(1) in building or structure the position of rich groundwater or near soil matrix face on dig a foundation ditch 2, the bottom of foundation ditch 2 than the dark 50～80cm of soil matrix surface layer, diameter than large 30～50 cm of the diameter of flange cylinder;
(2) 2 li of the foundation ditches digging, fill out and put 4～6 cm rubbles formation macadams again, on macadam, place flange cylinder 3, but the tip position of flange cylinder 3 is than low approximately 20～25 cm of plate upper surface;
(3) then in the lower floor of the peripheral foundation ditch of flange cylinder 3, fill out and put 4～6 cm rubbles, upper strata and fill out that to put 1～3 cm rubble mutually concordant with soil matrix surface layer, then in flange cylinder 3 inside, fill out and put 6～8 cm rubbles 4 to soil matrix surface layer, finally at the interior placement pumping for water pump of flange cylinder 3, can build bottom board concrete 1;
Etc. (4) bottom board concrete 1 reached after certain length of time, withdrew water pump, drainage duct 5(conduit is installed and is stretched into macadam), then build concrete in flange cylinder, with flexible pipe, connect drainage duct 7 simultaneously water in conduit is discharged.
Etc. (5) the interior concrete of flange concrete 3 reached after certain length of time, drainage duct 7 is exceeded to concrete partly amputate, then with stopper by conduit 7 sealings, first-class sealing ring covers flange 6 subsequently, then tighten the screws is built concrete 7(concrete on flange and is added expansion agent).
From construction technology, the method is to have simplified the construction technology of collecting well in the past or dewatering well sealing.
Above-described the utility model embodiment, does not form the restriction to the utility model protection domain.Any modification of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in claim protection domain of the present utility model.
Claims (6)
1. a bottom board concrete back cover structure, is characterized in that: flange cylinder is set in the middle of bottom board concrete; The bottom of described flange cylinder is also deeply positioned at the foundation ditch of soil matrix layer through bottom board concrete bottom surface, and described foundation ditch is laid macadam in advance; Described flange cylinder bottom is placed in above macadam; Flange cylinder top is lower than bottom board concrete upper surface; Flange cylinder top is connected with flange and above flange, builds concrete.
2. bottom board concrete back cover structure according to claim 1, is characterized in that: also comprise aqueduct; Described aqueduct stretches into flange cylinder inside and gos deep into macadam.
3. bottom board concrete back cover structure according to claim 1, is characterized in that: described foundation depth is 50～80cm; Foundation ditch diameter is than large 30～50 cm of flange cylinder diameter.
4. bottom board concrete back cover structure according to claim 1, is characterized in that: the rubble that straightens footpath 4～6 cm is filled out by described macadam lower floor, and upper strata is filled out and put 1～3 cm rubble and mutually concordant with soil matrix surface layer.
5. bottom board concrete back cover structure according to claim 1, is characterized in that: described flange cylinder inside fills out that to put 6～8 cm rubbles mutually concordant to soil matrix surface layer.
6. bottom board concrete back cover structure according to claim 1, is characterized in that: the top of described flange cylinder is than low 20～25 cm of bottom board concrete upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320528796.9U CN203475467U (en) | 2013-08-28 | 2013-08-28 | Base plate concrete bottom sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320528796.9U CN203475467U (en) | 2013-08-28 | 2013-08-28 | Base plate concrete bottom sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203475467U true CN203475467U (en) | 2014-03-12 |
Family
ID=50223823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320528796.9U Expired - Fee Related CN203475467U (en) | 2013-08-28 | 2013-08-28 | Base plate concrete bottom sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203475467U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113527A (en) * | 2015-07-03 | 2015-12-02 | 中国十七冶集团有限公司 | Deep caisson underwater concrete back cover local water burst control method |
| CN105155562A (en) * | 2015-08-06 | 2015-12-16 | 河北二十冶建设有限公司 | Construction method for bottom sealing treatment of spring openings of deep foundation pit |
-
2013
- 2013-08-28 CN CN201320528796.9U patent/CN203475467U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113527A (en) * | 2015-07-03 | 2015-12-02 | 中国十七冶集团有限公司 | Deep caisson underwater concrete back cover local water burst control method |
| CN105155562A (en) * | 2015-08-06 | 2015-12-16 | 河北二十冶建设有限公司 | Construction method for bottom sealing treatment of spring openings of deep foundation pit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20140828 |
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| EXPY | Termination of patent right or utility model |