CN208884527U - A kind of waterproof foundation pit - Google Patents
A kind of waterproof foundation pit Download PDFInfo
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- CN208884527U CN208884527U CN201821478879.0U CN201821478879U CN208884527U CN 208884527 U CN208884527 U CN 208884527U CN 201821478879 U CN201821478879 U CN 201821478879U CN 208884527 U CN208884527 U CN 208884527U
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- foundation pit
- layer
- waterproof
- waterproof roll
- roll layer
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Abstract
The utility model provides a kind of waterproof foundation pit, more particularly to building field, including foundation pit, side is enclosed in the foundation pit equipped with protecting wall, the bottom of the foundation pit is equipped with cement sand bed, first waterproof roll layer above the cement sand bed, the bottom edges and corners of the first waterproof roll layer and the foundation pit fit；Top the second waterproof roll layer of the first waterproof roll layer, the second waterproof roll layer are attached to the interior bottom for enclosing side and the foundation pit of the cofferdam upper end of the foundation pit, the foundation pit；The top of the second waterproof roll layer is equipped with concrete layer, and the concrete layer is attached to the interior bottom for enclosing side and the foundation pit of the foundation pit.The utility model waterproof performance is good, improves the safety of foundation pit.
Description
Technical field
The utility model belongs to building field, and in particular to a kind of waterproof foundation pit.
Background technique
Foundation pit is the heatable adobe sleeping platform excavated in basic engineering position by substrate absolute altitude and basic plane size.It should basis before excavation
Geological hydrology data determines excavation plan in conjunction with live nearby buildings situation, and performs water-proof drainage work；Foundation pit infiltration
The safety accidents such as collapsing can be caused, therefore the waterproof performance of foundation pit is essential.Existing foundation pit waterproof construction, has much room for improvement,
To improve waterproof performance.
In view of the above deficiencies, a kind of waterproof foundation pit is now needed, waterproof performance is good, improves the safety of foundation pit.
Utility model content
The purpose of the utility model is to provide a kind of waterproof foundation pits, and waterproof performance is good, improve the safety of foundation pit.
The utility model provides the following technical solution:
A kind of waterproof foundation pit, including foundation pit, equipped with protecting wall, the bottom of the foundation pit is equipped with for the interior side of enclosing of the foundation pit
Cement sand bed, the first waterproof roll layer of the cement sand bed top, the bottom of the first waterproof roll layer and the foundation pit
Portion edges and corners fit；Top the second waterproof roll layer of the first waterproof roll layer, the second waterproof roll layer attach
The bottom of side and the foundation pit is enclosed in the cofferdam upper end of the foundation pit, the foundation pit；The second waterproof roll layer
Top is equipped with concrete layer, and the concrete layer is attached to the interior bottom for enclosing side and the foundation pit of the foundation pit.
Preferably, pea gravel concreten layer is additionally provided between the concrete layer and the second waterproof roll layer.
Preferably, the first waterproof roll slice width degree is 200 to 300 millimeters.
Preferably, the fit chamfer radius at place of the bottom edges and corners of the first waterproof roll layer and the foundation pit is 50
Millimeter is to 100 millimeters.
Preferably, pressure brick layer is equipped with above the cofferdam of the foundation pit.
Preferably, froth bed is equipped between the pressure brick layer and the second waterproof roll layer.
The utility model has the beneficial effects that
(1) the utility model solves deep foundation pit construction basal plane humidity moisture using flexible, sealing, wet-laying type waterproof material
The problem of hardly possible construction, basic easily settled cracking, waterproof safety is reliable；
(2) the utility model uses flexible waterproof sheet layer, by binary creep cracking structure, solves bottom plate, top plate is big
Span structure cracking destruction waterproof layer, the problem for causing leakage to be leaked；
(3) the utility model can construct under the complex environments such as moist moisture, reduce the basal plane dry waiting time, be suitble to catch up with
The requirement of duration, and construction efficiency is high, can effectively meet project progress demand.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is the utility model structure chart.
In the figure, it is marked as 1, foundation pit；2, protecting wall；3, cement sand bed；4, the first waterproof roll layer；5, the second waterproof roll
Material layer；6, pea gravel concreten layer；7, concrete layer；8, froth bed；9, brick layer is pressed.
Specific embodiment
As shown in Figure 1, a kind of waterproof foundation pit, including foundation pit 1, the interior side of enclosing of foundation pit 1 is equipped with protecting wall 2, the bottom of foundation pit 1
Portion is equipped with cement sand bed 3,3 the first waterproof roll layer 4 of top of cement sand bed, the bottom of the first waterproof roll layer 4 and foundation pit 1
Edges and corners fit；Top the second waterproof roll layer 5 of first waterproof roll layer 4, the second waterproof roll layer 5 is attached to foundation pit 1
Cofferdam upper end, foundation pit 1 in enclose the bottom of side and foundation pit 1；The top of second waterproof roll layer 5 is equipped with concrete layer 7, mixes
Solidifying soil layer 7 is attached to the interior bottom for enclosing side and foundation pit 1 of foundation pit 1；
Wherein, pea gravel concreten layer 6, pea gravel concreten layer 6 are additionally provided between concrete layer 7 and the second waterproof roll layer 5
The second waterproof roll layer 5 can be protected；First waterproof roll layer, 4 width is 200 to 300 millimeters, the width；First waterproof roll layer
4 with the fit chamfer radius at place of the bottom edges and corners of foundation pit 1 be 50 millimeters to 100 millimeters, avoids the first waterproof by chamfering
Coiled material layer 4 ruptures, and improves service life；Pressure brick layer 9 is equipped with above the cofferdam of foundation pit 1, it can be by the second waterproof roll by pressure brick layer 9
Material layer 5 is fixed；It presses and is equipped with froth bed 8 between brick layer 9 and the second waterproof roll layer 5, froth bed 8 can protect the second waterproof roll
Material layer 5
The advantages of the utility model:
As shown in Figure 1, the utility model is using flexible, sealing, the first waterproof roll of wet-laying type layer 4 and the second waterproof roll
Layer 5 solves the problem of the easily settled cracking in deep foundation pit construction basal plane humidity moisture difficulty construction basis, and waterproof safety is reliable, and use is soft
Property waterproof roll bottom plate solved by binary creep cracking structure, top plate longspan structure cracking destruction waterproof layer causes to seep
The problem for leaking leakage, can construct under the complex environments such as moist moisture, reduce the basal plane dry waiting time, be suitble to work to tight deadlines wants
It asks, and construction efficiency is high, can effectively meet project progress demand, can save screed-coat, the water proof structures cost such as protective layer；Using
3 wet-laying of cement sand bed, basal plane is required it is low, for bottom cushion, top plate, side wall sectional repair, it goes without doing screed-coat,
Cost is lower, and cement sand bed 3 does bottom plate coiled material protective layer, instead of traditional pea gravel concreten protective layer, this save the cost
80% or more；By mixed mud layer 7, the waterproofness and fastness of foundation pit 1 can further improve；
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, although referring to before
Embodiment is stated the utility model is described in detail, it for those skilled in the art, still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features.It is all this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (6)
1. a kind of waterproof foundation pit, it is characterised in that: including foundation pit, side is enclosed in the foundation pit equipped with protecting wall, the foundation pit
Bottom be equipped with cement sand bed, the first waterproof roll layer above the cement sand bed, the first waterproof roll layer and institute
The bottom edges and corners for stating foundation pit fit；
Top the second waterproof roll layer of the first waterproof roll layer, the second waterproof roll layer are attached to the foundation pit
Cofferdam upper end, the foundation pit in enclose the bottom of side and the foundation pit；
The top of the second waterproof roll layer be equipped with concrete layer, the concrete layer be attached to the foundation pit in enclose side and
The bottom of the foundation pit.
2. a kind of waterproof foundation pit according to claim 1, it is characterised in that: the concrete layer and second waterproof roll
Pea gravel concreten layer is additionally provided between material layer.
3. a kind of waterproof foundation pit according to claim 1, it is characterised in that: the first waterproof roll slice width degree is 200
To 300 millimeters.
4. a kind of waterproof foundation pit according to claim 1, it is characterised in that: the first waterproof roll layer and the foundation pit
Bottom edges and corners fit place chamfer radius be 50 millimeters to 100 millimeters.
5. a kind of waterproof foundation pit according to claim 1, it is characterised in that: be equipped with pressure brick above the cofferdam of the foundation pit
Layer.
6. a kind of waterproof foundation pit according to claim 5, it is characterised in that: the pressure brick layer and second waterproof roll
Froth bed is equipped between layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821478879.0U CN208884527U (en) | 2018-09-11 | 2018-09-11 | A kind of waterproof foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821478879.0U CN208884527U (en) | 2018-09-11 | 2018-09-11 | A kind of waterproof foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208884527U true CN208884527U (en) | 2019-05-21 |
Family
ID=66511845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821478879.0U Active CN208884527U (en) | 2018-09-11 | 2018-09-11 | A kind of waterproof foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208884527U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111719575A (en) * | 2020-06-30 | 2020-09-29 | 贵州建工集团第一建筑工程有限责任公司 | Foundation pit anti-settling drainage method |
| CN111894124A (en) * | 2020-08-06 | 2020-11-06 | 广州市人防建筑设计研究院有限公司 | Waterproof construction method for large-area civil air defense basement |
-
2018
- 2018-09-11 CN CN201821478879.0U patent/CN208884527U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111719575A (en) * | 2020-06-30 | 2020-09-29 | 贵州建工集团第一建筑工程有限责任公司 | Foundation pit anti-settling drainage method |
| CN111894124A (en) * | 2020-08-06 | 2020-11-06 | 广州市人防建筑设计研究院有限公司 | Waterproof construction method for large-area civil air defense basement |
| CN111894124B (en) * | 2020-08-06 | 2021-08-10 | 广州市人防建筑设计研究院有限公司 | Waterproof construction method for large-area civil air defense basement |
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