CN206986904U - A kind of depth hole composite supporting construction with water-proof function - Google Patents
A kind of depth hole composite supporting construction with water-proof function Download PDFInfo
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- CN206986904U CN206986904U CN201720878317.4U CN201720878317U CN206986904U CN 206986904 U CN206986904 U CN 206986904U CN 201720878317 U CN201720878317 U CN 201720878317U CN 206986904 U CN206986904 U CN 206986904U
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Abstract
The utility model belongs to foundation pit supporting construction field, and specifically disclose a kind of depth hole composite supporting construction with water-proof function, it includes shallow foundation pit structure and deep basal pit structure, the shallow foundation pit structure includes horizontally disposed shallow foundation pit foundation bottom and the sole plate above shallow foundation pit foundation bottom, and shallow foundation pit foundation bottom surface offers the depression pond that blocks water to the one side of the sole plate；The upper end of deep basal pit structure is connected with one end of sole plate, and abutted with the side at shallow foundation pit foundation bottom, it includes the ground-connecting-wall arranged vertically and deep basal pit side wall, the side of ground-connecting-wall is bonded with deep basal pit side wall, opposite side is bonded with the side at shallow foundation pit foundation bottom, and ground-connecting-wall offers anti-water blocking groove with the side that deep basal pit side wall is bonded.The utility model ensure that the durability of deep pit monitor and Structural Engineering, have the advantages that convenient, the economical and practical, waterproof of construction and barrier performance are good.
Description
Technical field
The utility model belongs to foundation pit supporting construction field, is cheated more particularly, to a kind of depth with water-proof function
Composite supporting construction.
Background technology
Base pit engineering is the construction work for excavating a underground space downwards by ground, and foundation ditch surrounding typically sets vertical
Earth-retaining building enclosure, building enclosure is usually plate (stake) wall construction for having under excavation face substrate certain insertion depth, with really
The needs of border engineering, such as in the underground structures such as subway, the underground space, there is depth hole integration engineering, with its phase
The supporting depth that is provided with cheats compound containment system.
The existing depth, which cheats compound containment system, following two structures and form of construction work：First, deep (interior) foundation ditch of first constructing
With deep basal pit agent structure, deep (interior) foundation pit enclosure structure is not connected to agent structure；Second, before deep (interior) excavation of foundation pit, will
The building enclosure ground-connecting-wall rigid connection of the sole plate in shallow foundation hole and deep (interior) foundation ditch, deep (interior) foundation pit enclosure structure take part in anti-
It is floating, and contribute to the reinforcement of internal deep foundation pit support, save investment and facilitate construction.
But further investigations have shown that, problems be present in above-mentioned containment system and form of construction work：1) use and first construct
Deep (interior) foundation ditch and deep basal pit agent structure, deep (interior) foundation pit enclosure structure and the unconnected mode of agent structure, its economy effect
Property beneficial and easy for construction is poor；2) sole plate and deep (interior) foundation pit enclosure structure ground-connecting-wall, deep (interior) foundation ditch agent structure side wall
Between seam crossing, the processing method of special construction seam is usually taken, node waterproof is not strong, easily forms groundwater seepage road
Footpath, seam leak, steel bar corrosion phenomenon are serious, directly affect structure safety and durability.
Utility model content
For the disadvantages described above or Improvement requirement of prior art, the utility model provides a kind of depth hole composite support knot
Structure, wherein the characteristics of cheating composite supporting construction itself with reference to the depth, respective design has the depth hole composite support of water-proof function
Protection structure, by being cheated to its shallow foundation between sole plate and deep footing groove enclosing structure ground-connecting-wall and shallow foundation cheats sole plate and depth
Structure between foundation ditch agent structure side wall is improved and waterproofing design, efficiently solves shallow foundation hole sole plate and interior foundation pit enclosure
Structure ground-connecting-wall, the junction water-protected enclosure of deep basal pit agent structure side wall be not strong, percolating water and steel bar corrosion phenomenon are serious
The problem of, it is ensured that the durability of deep pit monitor and Structural Engineering, it can be applied to building construction, track traffic, port and pier etc.
Deep-foundation pit engineering field, the depth that is particularly suitable for use in are cheated deep (interior) foundation ditch ground-connecting-wall in support system and are connected with sole plate as branch
In the structural system of support and structural anti-buoyancy measure.
To achieve the above object, according to one side of the present utility model, it is proposed that a kind of depth with water-proof function
Composite supporting construction is cheated, it includes shallow foundation pit structure and deep basal pit structure, wherein：
The shallow foundation pit structure includes horizontally disposed shallow foundation pit foundation bottom and the basis above the shallow foundation pit foundation bottom
Bottom plate, the shallow foundation pit foundation bottom surface offer the depression pond that blocks water to the one side of the sole plate；
The upper end of the deep basal pit structure is connected with one end of the sole plate, and with the side at the shallow foundation pit foundation bottom
Abutting, it includes the ground-connecting-wall arranged vertically and deep basal pit side wall, and the side of the ground-connecting-wall is bonded with the deep basal pit side wall,
Opposite side is bonded with the side at the shallow foundation pit foundation bottom to realize the sealing in the depression pond that blocks water, in addition, the ground-connecting-wall and institute
The side for stating the fitting of deep basal pit side wall offers anti-water blocking groove.
As it is further preferred that being disposed with concrete cushion, waterproof layer from bottom to up in the depression pond that blocks water
And concrete cover.
As it is further preferred that the waterproof layer includes waterproof mortar course, waterproof coating layer and prevented successively from bottom to up
Water coiled material layer, the waterproof mortar course and waterproof coating layer extend to from the depression outer surface of the pond through the ground-connecting-wall that block water
The top of the ground-connecting-wall, and the waterproof roll layer then extends to the designed elevation of the ground-connecting-wall wall top, and it is tight with ground-connecting-wall
Closely connected conjunction.
As it is further preferred that be provided with waterproof mortar course and waterproof coating layer in the anti-water blocking groove, the waterproof
Screed and waterproof coating layer extend to the top of the ground-connecting-wall from the anti-outer surface of the water blocking groove through the ground-connecting-wall,
And overlapped respectively with corresponding waterproof mortar course and waterproof coating layer in the depression pond that blocks water, wherein the lap of splice is not less than
50mm。
As it is further preferred that the lower section inside the anti-water blocking groove is filled with waterproof mortar, top is provided with chance
Water expansion sealing strip carries out closure cut-off, and waterproof roll is provided between the anti-water blocking groove and deep basal pit side wall, and should
Anti- water blocking groove face is to the waterproof gasket cement pasted with the waterproof roll is provided with the end face of the deep basal pit side wall, with this reality
The sealing of the existing anti-water blocking groove.
As it is further preferred that the side that the sole plate is connected with the deep basal pit side wall is provided with waterproof material
Layer, the surface of the waterproof layer is provided with water expandable waterstop, and is embedded with grouting pipe.
As it is further preferred that the ground-connecting-wall includes ground-connecting-wall reinforcing bar and ground-connecting-wall floats stake, the ground-connecting-wall floats stake
Highly it is equal to the absolute altitude of sole plate bottom surface, the ground-connecting-wall reinforcing bar floats the contact of the waterproof coating layer above stake with the ground-connecting-wall
Water expandable waterstop is provided with face.
As it is further preferred that it is described block water depression pond and ground-connecting-wall corner waterproof layer on be provided with it is close
Sealing.
In general, by the contemplated above technical scheme of the utility model compared with prior art, mainly possess with
Under technological merit：
1. the utility model is from " existing shallow foundation is cheated between sole plate and interior foundation pit enclosure structure ground-connecting-wall, shallow foundation pit foundation
Because that can not set effective waterproof layer, waterproof measure exists not seam between plinth bottom plate and deep (interior) foundation ditch agent structure side wall
Integrality, groundwater seepage path is easily formed, the flexible waterproof sheet end of ground-connecting-wall both sides is not easy to close, channeling water easily occurs
This specific practical problem of phenomenon, and then cause the leak of structure seam crossing, steel bar corrosion phenomenon serious " is set out, respective design
With water-proof function the depth hole composite supporting construction, can be widely used for the depth hole engineering in cheat in pit enclosure structure as anti-floating
Water-proofing treatment in the case of measure, while be advantageous to deep (interior) the foundation ditch head roads support of premature removal with convenient construction, and ensure that
Deep pit monitor.
2. the sole plate in shallow foundation hole of the present utility model and the ground-connecting-wall rigid connection of deep (interior) foundation ditch, can give full play to depth
The anti-floating effect of (interior) foundation pit enclosure structure and the support drawknot effect of shallow foundation hole sole plate, have saved measure of anti float expense,
And contribute to the reinforcement of convenient construction and internal deep foundation pit support.
3. the utility model is blocked water recessed by the sole plate lower section setting that shallow foundation is cheated on the outside of deep (interior) foundation ditch ground-connecting-wall
The structure construction in pond is fallen into, can effectively extend the permeation pathway of deep basal pit ground-connecting-wall and shallow foundation hole sole plate seam crossing underground water,
Improve the waterproof ability that interior foundation ditch ground-connecting-wall is connected with sole plate, it is ensured that the durability of deep pit monitor and Structural Engineering.
4. the utility model termination on the inside of ground-connecting-wall sets anti-water blocking slot structure construction, deep basal pit body junction ensure that
The closure of structure side wall outsourcing flexible waterproof sheet joint, while the permeation pathway of underground water is blocked, avoid waterproof roll
The channeling water of end, reduce the possibility that structure seam touches water.
5. the utility model also enhances the design of waterproof detail structure, set by pouring seam crossing in new-old concrete
Reserved Grouting Pipe, expansion sealing strip and fluid sealant, new-old concrete face is set to smear cement-based capillary crystalline waterproof coating etc. and arrange
Apply, and seam crossing connection reinforcing bar is blocked using water expandable waterstop water proof, further improves depth hole composite supporting construction
Waterproof, seepage control performance, be advantageous to eliminate the hidden danger of structure later stage percolating water and steel bar corrosion.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of depth hole composite supporting construction with water-proof function of the present utility model；
Fig. 2 is the connection diagram of deep basal pit ground-connecting-wall and sole plate of the present utility model；
Fig. 3 is the structural representation of anti-water blocking groove on ground-connecting-wall of the present utility model.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.In addition, institute in each embodiment of the utility model disclosed below
As long as the technical characteristic being related to does not form conflict each other, can is mutually combined.
As shown in figure 1, a kind of depth hole composite supporting construction with water-proof function that the utility model embodiment provides,
It includes shallow foundation pit structure and deep basal pit structure, wherein, shallow foundation pit structure includes horizontally disposed shallow foundation pit foundation bottom 13 and set
Sole plate 2 above the shallow foundation pit foundation bottom, the shallow foundation pit foundation bottom surface offer the depression that blocks water to the one side of the sole plate
Pond 5；The upper end of the deep basal pit structure is connected with one end of sole plate, and is abutted with the side at shallow foundation pit foundation bottom, and it includes perpendicular
The ground-connecting-wall 1 directly arranged and the deep basal pit side wall 3 arranged vertically, the side of the ground-connecting-wall is bonded with deep basal pit side wall, another
Side is bonded with the side at shallow foundation pit foundation bottom to realize the sealing in the depression pond that blocks water, the side that the ground-connecting-wall is bonded with deep basal pit side wall
Offer anti-water blocking groove 16, be deep basal pit on the outside of deep basal pit side wall (at Fig. 1 B).Pass through the phase interworking of above-mentioned each structure
Close, can effectively solve shallow foundation hole sole plate and interior foundation pit enclosure structure ground-connecting-wall, the junction of deep basal pit agent structure side wall
The problem of water-protected enclosure is not strong, percolating water and steel bar corrosion phenomenon are serious, it is ensured that deep pit monitor and Structural Engineering it is durable
Property, have the advantages that convenient, the economical and practical, waterproof of construction and barrier performance are good.
As illustrated in fig. 1 and 2, the depression that blocks water is disposed with concrete cushion 12, waterproof layer and coagulation from bottom to up in pond
Protective soil layer 8, the upper surface of the concrete cover 8 are bonded with the lower surface of sole plate, and it can specifically be mixed using C20 microliths
Solidifying soil pours.Wherein, waterproof layer includes waterproof mortar course 11, waterproof coating layer 10 and waterproof roll layer 9 successively from bottom to up, such as
Shown in Fig. 2, the waterproof mortar course and waterproof coating layer extend to ground-connecting-wall 1 from depression outer surface of the pond through ground-connecting-wall that block water
Top, and waterproof roll layer then extends to the designed elevation of ground-connecting-wall wall top, and be brought into close contact with ground-connecting-wall, it is at the A in Fig. 2
Deep Foundation Pit excavation face.Further, concrete cushion can specifically be poured using C20 plain concretes and formed, waterproof mortar course by
Polymer cement materials are made, and waterproof coating layer is made up of cement-based capillary crystalline waterproof coating, and waterproof roll layer is by certainly
Viscous waterproof roll is made.Further, block water depression pond and ground-connecting-wall corner waterproof layer on be provided with sealing
Glue 15.
Specifically, the size of anti-water blocking groove is not less than 40mm × 200mm, as shown in figure 3, being provided with waterproof mortar in it
Layer and waterproof coating layer, the waterproof mortar course and waterproof coating layer extend to ground from anti-outer surface of the water blocking groove through ground-connecting-wall
Even coping, and waterproof mortar course and waterproof coating layer overlap joint corresponding with the depression pond that blocks water, the wherein lap of splice respectively
Not less than 50mm.
Further, the lower section inside anti-water blocking groove is filled with waterproof mortar 17, and top is provided with water-swellable sealing
Bar 18 carries out closure cut-off, and waterproof roll, and the anti-water blocking groove face are provided between anti-water blocking groove and deep basal pit side wall
The waterproof gasket cement 19 pasted with the waterproof roll is provided with to the end face of deep basal pit side wall, anti-water blocking groove is realized with this
Sealing.
More specifically, the side that sole plate is connected with deep basal pit side wall is provided with waterproof layer, the waterproof layer
Surface be provided with water expandable waterstop 21, and be embedded with grouting pipe 20.
Further, sole plate includes sole plate reinforcing bar 7 and concrete, and ground-connecting-wall includes ground-connecting-wall reinforcing bar 6 and ground
Even wall floats stake, and the ground-connecting-wall floats absolute altitude of the height equal to sole plate bottom surface of stake, and the ground-connecting-wall reinforcing bar is floated in stake with ground-connecting-wall
Water expandable waterstop 14 is provided with the contact surface of the waterproof coating layer of side
The Specific construction mode for cheating composite supporting construction to the depth of the present utility model with water-proof function below is carried out
Describe in detail, its construction method mainly includes following two parts content：Shallow foundation cheats the connection of sole plate and deep basal pit ground-connecting-wall
Pour and the connection of water-proofing treatment step and deep basal pit side wall and shallow foundation hole sole plate pours and water-proofing treatment step.
Specifically comprise the following steps：
(1) connection of sole plate and ground-connecting-wall pours and water-proofing treatment
(1.1) mark at floating stake to the bottom of sole plate that ground-connecting-wall is cut after deep pit excavation to the bottom absolute altitude of sole plate
Height, the depression pond that blocks water, namely the position of the excavation foundation bottom plate 2 lower section soil body are excavated along ground-connecting-wall inward flange to its substrate absolute altitude, and
Constructed concrete cushion on the depression pond that blocks water, such as construction 150mm thickness C20 concrete cushions；
(1.2) block water depression pond 5 in the range of concrete cushion above, the lateral surface of ground-connecting-wall and top laying waterproof
Mortar is smeared with forming waterproof mortar course, such as setting 10mm thick polymers cement waterproofing mortar 11 above waterproof mortar course
Water-repellent paint such as cement-based capillary crystalline waterproof coating is to form waterproof coating layer, then in depression pond 5 and the ground-connecting-wall 1 of blocking water
Corner waterproof coating layer above construction fluid sealant 15, construction area is preferably 50mm × 50mm；On waterproof coating layer
Side's laying adhesive waterproof coil forms waterproof roll layer, and the waterproof roll extends to the wall top designed elevation of ground-connecting-wall, and with ground
Even wall is brought into close contact；For casting concrete such as C35 pea gravel concretens to form concrete cover, this is mixed above waterproof roll
Solidifying protective soil layer is bonded with sole plate；
(1.3) finally pouring sole plate concrete makes it be connected with the upper end of ground-connecting-wall, and it is poured to the sole plate
With the junction of ground-connecting-wall, as shown in Fig. 2 the outer face (at Fig. 1 A, Fig. 2 right side) of the concrete of sole plate with
The side of ground-connecting-wall is concordant.
(2) connection of deep basal pit side wall and sole plate pours and water-proofing treatment：
(2.1) after sole plate concrete strength reaches the 85% of design strength, the upper portion of deep basal pit side wall is excavated
Point, that is, remove deep basal pit and support and be excavated to shallow foundation pit foundation bottom first, and anti-water blocking is opened up in the lateral surface of ground-connecting-wall
Groove, waterproof mortar is laid in the anti-water blocking groove and for example lays laying 10mm Polymer cement materials to form Waterproof sand
Pulp layer, water-repellent paint such as cement-based capillary crystalline waterproof coating is then smeared on waterproof mortar course to form water-repellent paint
Layer, the waterproof mortar course are carried out with the waterproof mortar course in waterproof coating layer and the depression pond that blocks water first constructed with waterproof coating layer
Overlap joint；
(2.2) the lower section filling waterproof mortar such as Polymer cement materials inside anti-water blocking groove, top is used
Water expandable waterstop carries out closure cut-off, it is preferred to use and 20mm × 10mm water expandable waterstop 18 carries out closure cut-off,
Waterproof gasket cement is set to paste waterproof roll respectively in the top and bottom of anti-water blocking groove；
(2.3) (namely sole plate concrete surface is to deep basal pit for the lateral surface in sole plate and the junction of ground-connecting-wall
It is herein construction joint at the A of the one side of side wall, i.e. Fig. 1) surface cleaning is clean and brushing interfacial agents, then smear water-repellent paint
Such as then cement-based capillary crystalline waterproof coating installs water-swellable to form waterproof coating layer on the surface of waterproof coating layer
Sealing rod and pre-buried grouting pipe, last casting concrete, which forms concealed beam 4, makes deep basal pit side wall top be connected with sole plate.
In above-mentioned steps, before the depression pond middle berth that blocks water sets waterproof mortar, by the top of ground-connecting-wall and the table of lateral surface
Face dabbing, clean clean and brushing interfacial agents；Before anti-water blocking groove middle berth sets waterproof mortar, by the surface of anti-water blocking groove
Dabbing, clean clean and brushing interfacial agents.
As it will be easily appreciated by one skilled in the art that preferred embodiment of the present utility model is the foregoing is only, not
To limit the utility model, any modification of all made within spirit of the present utility model and principle, equivalent substitution and change
Enter, should be included within the scope of protection of the utility model.
Claims (8)
1. a kind of depth hole composite supporting construction with water-proof function, it is characterised in that including shallow foundation pit structure and deep basal pit
Structure, wherein：
The shallow foundation pit structure includes horizontally disposed shallow foundation pit foundation bottom and the sole plate above the shallow foundation pit foundation bottom,
The shallow foundation pit foundation bottom surface offers the depression pond that blocks water to the one side of the sole plate；
The upper end of the deep basal pit structure is connected with one end of the sole plate, and is supported with the side at the shallow foundation pit foundation bottom
Connect, it includes the ground-connecting-wall arranged vertically and deep basal pit side wall, and the side of the ground-connecting-wall is bonded with the deep basal pit side wall, separately
Side is bonded with the side at the shallow foundation pit foundation bottom to realize the sealing in the depression pond that blocks water, in addition, the ground-connecting-wall with it is described
The side of deep basal pit side wall fitting offers anti-water blocking groove.
2. as claimed in claim 1 with water-proof function the depth hole composite supporting construction, it is characterised in that it is described block water it is recessed
Fall into pond and be disposed with concrete cushion, waterproof layer and concrete cover from bottom to up.
3. the depth hole composite supporting construction with water-proof function as claimed in claim 2, it is characterised in that the waterproof layer
Include waterproof mortar course, waterproof coating layer and waterproof roll layer successively from bottom to up, the waterproof mortar course and waterproof coating layer are equal
The top of the ground-connecting-wall is extended to from the depression outer surface of the pond through the ground-connecting-wall that block water, and the waterproof roll layer then prolongs
The designed elevation of the ground-connecting-wall wall top is extended, and is brought into close contact with ground-connecting-wall.
4. the depth hole composite supporting construction with water-proof function as claimed in claim 3, it is characterised in that the anti-water resistance
Waterproof mortar course and waterproof coating layer are provided with fault trough, the waterproof mortar course and waterproof coating layer are from the anti-water blocking groove
Outer surface through the ground-connecting-wall extends to the top of the ground-connecting-wall, and respectively with corresponding Waterproof sand in the depression pond that blocks water
Pulp layer and waterproof coating layer overlap joint, wherein the lap of splice is not less than 50mm.
5. the depth hole composite supporting construction with water-proof function as claimed in claim 4, it is characterised in that the anti-water resistance
Lower section inside fault trough is filled with waterproof mortar, and top is provided with water expandable waterstop and carries out closure cut-off, the anti-water resistance
It is provided with waterproof roll between fault trough and deep basal pit side wall, and the anti-water blocking groove face is on the end face of the deep basal pit side wall
The waterproof gasket cement pasted with the waterproof roll is provided with, the sealing of the anti-water blocking groove is realized with this.
6. the depth hole composite supporting construction with water-proof function as claimed in claim 1, it is characterised in that the basic bottom
The side that plate is connected with the deep basal pit side wall is provided with waterproof layer, and the surface of the waterproof layer is provided with water-swellable sealing
Bar, and it is embedded with grouting pipe.
7. the depth hole composite supporting construction with water-proof function as claimed in claim 1, it is characterised in that the ground-connecting-wall
Stake is floated including ground-connecting-wall reinforcing bar and ground-connecting-wall, the ground-connecting-wall floats absolute altitude of the height equal to sole plate bottom surface of stake, the ground-connecting-wall
Reinforcing bar floats with the ground-connecting-wall and is provided with water expandable waterstop at the contact surface of the waterproof coating layer above stake.
8. as claimed in claim 3 with water-proof function the depth hole composite supporting construction, it is characterised in that it is described block water it is recessed
Fall on the waterproof layer of the corner of pond and ground-connecting-wall and be provided with fluid sealant.
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| CN201720878317.4U CN206986904U (en) | 2017-07-19 | 2017-07-19 | A kind of depth hole composite supporting construction with water-proof function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386298A (en) * | 2017-07-19 | 2017-11-24 | 中铁第四勘察设计院集团有限公司 | A kind of depth hole composite supporting construction and its construction method with water-proof function |
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2017
- 2017-07-19 CN CN201720878317.4U patent/CN206986904U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386298A (en) * | 2017-07-19 | 2017-11-24 | 中铁第四勘察设计院集团有限公司 | A kind of depth hole composite supporting construction and its construction method with water-proof function |
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