CN206655233U - Deep foundation pit slope protector - Google Patents
Deep foundation pit slope protector Download PDFInfo
- Publication number
- CN206655233U CN206655233U CN201720355077.XU CN201720355077U CN206655233U CN 206655233 U CN206655233 U CN 206655233U CN 201720355077 U CN201720355077 U CN 201720355077U CN 206655233 U CN206655233 U CN 206655233U
- Authority
- CN
- China
- Prior art keywords
- rubber blanket
- concrete layer
- layer
- foundation ditch
- foundation pit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model discloses a kind of deep foundation pit slope protector, including concrete layer, it is laid on slopes outer surface and the bottom of foundation ditch of foundation ditch both sides, separation layer is laid on concrete layer outer surface, separation layer is mutually spliced to form by polylith rubber blanket, the first water expandable waterstop is provided with positioned at adjacent two pieces of rubber blanket stitching portions, the first water expandable waterstop outer surface is provided with the first glass glue-line；Band is arranged at the top of foundation ditch, positioned at the top of separation layer and concrete layer contact position；Multiple pressure relief units, pressure relief unit includes more branch pipes, supervisor, multiple valves and pressure gauge and pump, branch pipe one end sequentially passes through the position beyond rubber blanket stitching portion and concrete layer is located in soil, the other end connects with supervisor, and supervisor gos deep into one end bottom of foundation ditch, other end connection pump.The utility model, which has, reduces underground water to the impulsive force of concrete layer, avoids ice and snow, rainwater and corrosive medium from directly being contacted with concrete layer, protects the beneficial effect of foundation ditch slope retaining structure.
Description
Technical field
It the utility model is related to deep foundation pit slope protection field.More specifically, it the utility model is related to a kind of deep basal pit
Slope protecting device.
Background technology
Consider the stability of high building structure and use upper requirement, generally require to design one or more layers basement,
Or subway is built, it is necessary to design underground rail, 5~20m of lower digging or so, in city, the excavation of deep basal pit is subjected to surrounding
Environment, Architectural Equipment and road, underground utilities influence, it is impossible to which slope, it is necessary to carry out foundation pit stope support, protect by deep foundation pit slope
Largely by the way of gunite concrete and suspension roof support, and due in lower digging more than 6m, in fact it could happen that under in large quantities
Water, because of physical features reason, underground water is easily to the concrete sprayed the effect of impacting, while concrete is exposed to outside, easily
Acted on by dust storm and rainwash, and peeling, or even missing, the service life of supporting construction is shortened, and influence whole
The safety issue of individual work progress, potential safety hazard is caused to later stage house.
Utility model content
A purpose of the present utility model is that solve at least the above, and provides the advantages of at least will be described later.
The utility model also has a purpose to be to provide a kind of deep foundation pit slope protector, can reduce underground water to depth
The impulsive force of excavation slope concrete layer, dust storm and rainwater is avoided to reach guarantor to the souring of the concrete exposed to outside
The effect of Slope Supporting of Deep Excavation structure is protected, and then eliminates the effect of later stage engineering construction potential safety hazard.
In order to realize according to these purposes of the present utility model and further advantage, there is provided a kind of deep foundation pit slope protection dress
Put, including：
Concrete layer, it is laid on the slopes outer surface of foundation ditch both sides and bottom of foundation ditch,
Separation layer, it is laid on the concrete layer outer surface, and the separation layer mutually splices shape by polylith rubber blanket
Into being provided with the first water expandable waterstop, the first water expandable waterstop appearance positioned at adjacent two pieces of rubber blanket stitching portions
Face is provided with the first glass glue-line；
Band, it is arranged at the top of foundation ditch, and positioned at the top of the separation layer and the concrete layer contact position, institute
State the first bitumen layer, waterproof cloth and the second bitumen layer that band includes laying from bottom to up；
Multiple pressure relief units, the pressure relief unit include more branch pipes, supervisor, multiple valves and pressure gauge and pump, institute
State branch pipe one end sequentially pass through position beyond the rubber blanket stitching portion and the concrete layer be located in soil, the other end with
Supervisor's connection, bottom of foundation ditch is goed deep into described supervisor one end, the other end connects the pump, and the valve and pressure gauge are distributed in
On each branch pipe and supervisor.
Preferably, the branch pipe is provided with the second water expandable waterstop, and described second with the rubber blanket contact position
Water expandable waterstop outer surface is provided with the second glass glue-line.
Preferably, the rubber blanket is in cuboid, and the rubber mat thickness is 5~8mm, the length of side is 60~80cm.
Preferably, in addition to multiple class cross reinforcing bars, the reinforcing bar include four ends, and the end of the reinforcing bar is set
The expansion bolt of the rubber blanket can be stretched into by having, and four expansion bolts are each passed through position beyond four rubber blanket stitching portions simultaneously
It extend into the concrete layer.
Preferably, four ends of the reinforcing bar form a square, the catercorner length of the reinforcing bar for 20~
25cm。
Preferably, the side of the rubber blanket is interval with multipair raised and groove, and two rubber blankets mutually spliced
Projection worked in coordination with groove.
Preferably, the internal diameter of the branch pipe is 10~12cm.
Preferably, the band extends 10~15cm by foundation ditch to slopes direction, first bitumen layer, described anti-
The height of water cloth and second bitumen layer is respectively 2~2.5cm, 0.2~0.5cm and 3.5~5cm.
The utility model comprises at least following beneficial effect：
Firstth, separation layer can protect concrete layer, concrete layer is avoided by dust storm and rainwash, avoid with
Ice and snow, rainwater, corrosive medium etc. directly contact, and so as to avoid the coming off of concrete layer, peeling or trachoma, ensure concrete layer
Firm intensity, preferably resists the percussion of underground water in foundation ditch both sides and bottom soil to concrete layer, and band can be with
Prevent the surface water or rainwater from being penetrated into from the gap of separation layer and concrete layer contact position, so as to which protecting insulating layer connects with concrete layer
Tactile stability；
Secondth, multiple pressure relief units, it can be recognized according to the pressure gauge on every branch pipe and supervisor in respective regions and mixed
The underground water percussion size that solidifying soil layer is born, so as to according to specific circumstances, i.e., if a certain branch pipe or more
Pressure gauge on branch pipe is shown, when pressure is excessive, can by this branch pipe or more branch pipes valve open, while open and this
Pump on the supervisor of branch pipe or this more branch pipe connections, carries out release of drawing water, and when pressure is normal, closes pump and respective valves,
Stop pumping, it is final to realize to protect concrete layer so as to reduce percussion of the underground water to the concrete layer in this region
Protection to foundation ditch；
3rd, its sealing protection performance of rubber blanket stitching portion is relatively weak, and sets first to meet water at rubber blanket gap
Expansion sealing strip, oozing out for underground water can be effectively prevented, because water expandable waterstop can produce 2~3 times after water is met
Dilatancy, and all irregular surfaces, hole and gap full of seam, while huge contact is produced, it is thoroughly anti-
Only seepage, exactly because while also water expandable waterstop is met water and can expanded, therefore be provided with the first glass glue-line in its outer surface,
Rainwater or other liquid substances can be avoided to directly contact the first water expandable waterstop, make its deformation, and failed；
4th, using class cross reinforcing bar, its four expansion bolts are made to be each passed through beyond four rubber blanket stitching portions
Position is simultaneously extend into the concrete layer, and further rubber blanket is reinforced, and during reaching seasonal changing, rubber blanket is due to heat expansion
Shrinkage and the range shorter of crimp, around the fixing point extruding provided with rigid structure, displacement caused by Reducing distortion, finally
Improve the steadiness of rubber blanket.
Further advantage, target and feature of the present utility model embody part by following explanation, and part will also pass through
Research of the present utility model and practice are understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is separation layer detailed structure schematic diagram；
Fig. 3 is the connection diagram of rubber blanket and cross reinforcing bar；
Fig. 4 is band detailed schematic.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
It should be noted that in description of the present utility model, term " on ", " under ", " top ", " bottom ", " interior ", " outer " etc.
The orientation or position relationship of instruction are based on orientation shown in the drawings or position relationship, are for only for ease of description the utility model
Described with simplifying, be not instruction or imply that signified device or element there must be specific orientation, with specific orientation structure
Make and operate, therefore it is not intended that to limitation of the present utility model.
As shown in figures 1-4, the utility model provides a kind of deep foundation pit slope protector, including：
Concrete layer 8, it is laid on the slopes outer surface of foundation ditch both sides and bottom of foundation ditch,
Separation layer, it is laid on the outer surface of concrete layer 8, and the separation layer is mutually spliced by polylith rubber blanket 1
Formed, the first water expandable waterstop 2, first water expandable waterstop 2 are provided with positioned at adjacent two pieces of rubber blankets 1 stitching portion
Outer surface is provided with the first glass glue-line 3；
Band 4, it is arranged at the top of foundation ditch, and is located at the top of the separation layer and the contact position of the concrete layer 8,
The band 4 includes the first bitumen layer 41, the bitumen layer 43 of waterproof cloth 42 and second laid from bottom to up；
Multiple pressure relief units, the pressure relief unit include more branch pipes 5, supervisor 6, multiple valves and pressure gauge and pump,
Described one end of branch pipe 5 sequentially passes through position beyond the stitching portion of rubber blanket 1 and the concrete layer 8 is located in soil, is another
One end connects with the supervisor 6, and the supervisor gos deep into 6 one end bottom of foundation ditch, the other end connects the pump, the valve and pressure
Table is distributed on each branch pipe 5 and supervisor 6.
In the above-mentioned technical solutions, deep basal pit is in digging process, to ensure the stabilization of excavation slope, saves engineering and makes
Valency, excavation slope protection is most of by the way of gunite concrete and suspension roof support, and excavation slope gunite concrete is applied
Work is again more using dry pressure spray process, and its is simple to operate, and construction cost is low, in the dry spraying construction of excavation slope, is supplied water using air compressor machine
Cement, sand, the macadam-aggregate mix completed with supply to dry mixing carry out feeding injection, make on the slopes outer surface of foundation ditch both sides and base
Cheat bottom and form a layer concrete layer 8, after the condensation cure of concrete layer 8, separation layer is laid in its outer surface, i.e., first remove mixed
The scattered soil layer and floating dust of the solidifying outer surface of soil layer 8, it is recessed to fill up hole, then by rubber blanket 1 to it is lower and on be laid on the appearance of concrete layer 8
On face, and water expandable waterstop is squeezed in the place that rubber blanket 1 splices with glue spraying gun, forms the first water expansion sealing strip 2,
After its chance solidification, coat glass cement on the outer surface of the first water expandable waterstop 2, form the first glass glue-line 3, when every
After the completion of absciss layer laying, at the top of foundation ditch, separation layer and the top of the contact position of concrete layer 8, band 4 is poured into a mould, it is right before cast
Surface dust cleaning is carried out around contact position, then pours into a mould the first bitumen layer 41, then waterproof cloth 42 is laid in the first bitumen layer 41
Surface, continue to pour into a mould the second bitumen layer 43, after its solidification, a guarantor can be so formed in the outer surface of concrete layer 8
Sheath, concrete layer 8 is avoided by dust storm and rainwash, avoid directly contacting with ice and snow, rainwater, corrosive medium etc.,
So as to avoid the coming off of concrete layer 8, peeling or trachoma, ensure the firm intensity of concrete layer 8, preferably resist foundation ditch both sides
And in the soil of bottom underground water to the percussion of concrete layer 8, the band 4 of setting can prevent the surface water or rainwater from every
The gap of absciss layer and the contact position of concrete layer 8 is penetrated into, so as to the stability that protecting insulating layer contacts with concrete layer 8, in order to keep away
Exempt from groundwater seepage out of the ordinary to have arrived on concrete outer surface, and oozed out from the stitching portion of rubber blanket 1, set at the gap of rubber blanket 1
First water expandable waterstop 2, oozing out for underground water can be effectively prevented, because water expandable waterstop can produce after water is met
2~3 times of dilatancy, and all irregular surfaces, hole and gap full of seam, while produce huge contact pressure
Power, seepage is thoroughly prevented, when seam or construction joint are subjected to displacement, and cause gap beyond the elastic range of material, can also led to
Cross water swelling and carry out sealing, damage concrete layer 8 so as to prevent from underground water from taking care of the pence forming thread, the first glass is set
Glass glue-line 3 can protect the first water expandable waterstop 2, in order to avoid encounter the rainy day or other liquid substances directly contact
One water expandable waterstop 2, makes its deformation, and fails；
Multiple pressure relief units are set, can be recognized according to the pressure gauge on every branch pipe 5 and supervisor 6 in respective regions and mixed
The underground water percussion size that solidifying soil layer 8 is born, so as to according to specific circumstances, i.e., if a certain branch pipe 5 or more
Pressure gauge on root branch pipe 5 is shown, when pressure is excessive, can be opened the valve on 5 or more branch pipes 5 of this branch pipe, be beaten simultaneously
The pump on the supervisor 6 connected with 5 or more branch pipes 5 of this branch pipe is driven, carries out release of drawing water, when pressure is normal, closes pump and phase
Valve is answered, is stopped pumping, so as to reduce percussion of the underground water to the concrete layer 8 in this region, to protect concrete layer
8, finally realize the protection to foundation ditch.
In another technical solution, the branch pipe 5 is provided with the second water-swellable sealing with the contact position of rubber blanket 1
Bar, and the second water expandable waterstop outer surface is provided with the second glass glue-line.In order to avoid underground water out of the ordinary is from coagulation
Soil layer 8 oozes out, and is oozed out from branch pipe 5 with the contact position of rubber blanket 1, carries out sealing using the second water expandable waterstop, adopts simultaneously
The second water expandable waterstop is protected with the second glass glue-line.
In another technical solution, the rubber blanket 1 is in cuboid, and the thickness of rubber blanket 1 is 5~8mm, the length of side
For 60~80cm.Quality of rubber materials easily expands with heat and contract with cold, if oversized its of monolithic rubber blanket 1 pads having a great influence for swollen shrinkage, its
The extruding force increase that edge is subject to, it is unfavorable for the steadiness of the laying of rubber blanket 1, and if monolithic rubber blanket 1 is undersized, it is spelled
It is more to connect place's seam, influences integral waterproofing performance, also increases difficulty of construction.
In another technical solution, in addition to multiple class cross reinforcing bars 7, the reinforcing bar 7 includes four ends, described
The end of reinforcing bar 7 is provided with the expansion bolt that can stretch into the rubber blanket 1, and four expansion bolts are each passed through four rubber blankets 1 and spelled
Connect and sentence outer position and extend into the concrete layer 8.In order to further strengthen the stabilization of separation layer laying concrete layer 8
Property, using class cross reinforcing bar 7, its four expansion bolts is each passed through the position beyond four stitching portions of rubber blanket 1 and stretch
Enter into the concrete layer 8, during reaching seasonal changing, rubber blanket 1 due to expanding with heat and contract with cold and the range shorter of crimp,
Around the fixing point extruding provided with rigid structure, displacement caused by Reducing distortion, the final steadiness for improving rubber blanket 1.
In another technical solution, four ends of the reinforcing bar 7 form a square, the reinforcing bar 7 it is diagonal
Line length is 20~25cm.Because reinforcing bar 7 is by Action of Gravity Field, if the length of reinforcing bar 7 is oversize, it is unfavorable for the stabilization of itself,
And if the length of reinforcing bar 7 is too short, its expansion bolt can only pass through the edge of rubber blanket 1, be unfavorable for the stabilization of rubber blanket 1.
In another technical solution, the side of the rubber blanket 1 is interval with multipair raised and groove, and mutually splice
The projection of two rubber blankets 1 is worked in coordination with groove.It can splice rubber blanket 1 more firm, it is more compact, enhance rubber blanket 1
The sealing protection performance of stitching portion.
In another technical solution, the internal diameter of the branch pipe 5 is 10~12cm.It is in order in underground water in this branch pipe 5
When excessive to the percussion of concrete layer 8, selectively drawn water, be not intended to water intaking and use it for anything else and draw water, therefore only
The water pipe of small internal diameter is needed, if the internal diameter of branch pipe 5 is excessive, the performance requirement of pump is also accordingly improved, can also so be saved
Save use cost.
In another technical solution, the band 4 extends 10~15cm, first drip by foundation ditch to slopes direction
The height of cyan layer 41, the waterproof cloth 42 and second bitumen layer 43 be respectively 2~2.5cm, 0.2~0.5cm and 3.5~
5cm.Due to short transverse set it is too high be unfavorable for foundation ditch construction in later period, therefore band whole height set it is relatively low, in order to
Under preferably preventing that water from oozing from band upper strata, there is provided waterproof cloth 42, can prevent water from being penetrated into from the second bitumen layer 43
First bitumen layer 41, and the height setting of the second bitumen layer 43 is higher than the first bitumen layer 41, it is to utilize the second bitumen layer
43 gravitational effects press to obtain more consolidation to waterproof layer and the first bitumen layer 41, and isolation strip is set than separation layer and concrete layer 8
The relief width of contact position, and reach 10~15cm, it can effectively prevent water from being penetrated into from the bottom of the first bitumen layer 41 in gap.
Although embodiment of the present utility model is disclosed as above, it is not restricted in specification and embodiment
Listed utilization, it can be applied to various suitable fields of the present utility model completely, for those skilled in the art,
Other modification is easily achieved, therefore under the universal limited without departing substantially from claim and equivalency range, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (8)
- A kind of 1. deep foundation pit slope protector, it is characterised in that including：Concrete layer, it is laid on the slopes outer surface of foundation ditch both sides and bottom of foundation ditch,Separation layer, it is laid on the concrete layer outer surface, and the separation layer is mutually spliced to form by polylith rubber blanket, position The first water expandable waterstop is provided with adjacent two pieces of rubber blanket stitching portions, is set on the first water expandable waterstop outer surface There is the first glass glue-line；Band, it is arranged at the top of foundation ditch, and positioned at the top of the separation layer and the concrete layer contact position, it is described close Envelope band includes the first bitumen layer, waterproof cloth and the second bitumen layer laid from bottom to up；Multiple pressure relief units, the pressure relief unit include more branch pipes, supervisor, multiple valves and pressure gauge and pump, the branch Pipe one end sequentially passes through position beyond the rubber blanket stitching portion and the concrete layer is located in soil, the other end with it is described Supervisor's connection, bottom of foundation ditch is goed deep into described supervisor one end, the other end connects the pump, and the valve and pressure gauge are distributed in each On branch pipe and supervisor.
- 2. deep foundation pit slope protector as claimed in claim 1, it is characterised in that the branch pipe contacts with the rubber blanket Place is provided with the second water expandable waterstop, and the second water expandable waterstop outer surface is provided with the second glass glue-line.
- 3. deep foundation pit slope protector as claimed in claim 1, it is characterised in that the rubber blanket is in cuboid, institute State rubber mat thickness be 5~8mm, the length of side be 60~80cm.
- 4. deep foundation pit slope protector as claimed in claim 3, it is characterised in that also including multiple class cross reinforcing bars, The reinforcing bar includes four ends, and the end of the reinforcing bar is provided with the expansion bolt that can stretch into the rubber blanket, four expanding screws Bolt is each passed through the position beyond four rubber blanket stitching portions and extend into the concrete layer.
- 5. deep foundation pit slope protector as claimed in claim 4, it is characterised in that four ends of the reinforcing bar form one Individual square, the catercorner length of the reinforcing bar is 20~25cm.
- 6. deep foundation pit slope protector as claimed in claim 1, it is characterised in that the side of the rubber blanket is interval with Multipair raised and groove, and the projection of two rubber blankets mutually spliced is worked in coordination with groove.
- 7. deep foundation pit slope protector as claimed in claim 1, it is characterised in that the internal diameter of the branch pipe be 10~ 12cm。
- 8. deep foundation pit slope protector as claimed in claim 1, it is characterised in that the band is by foundation ditch to slopes side To 10~15cm of extension, the height of first bitumen layer, the waterproof cloth and second bitumen layer be respectively 2~2.5cm, 0.2~0.5cm and 3.5~5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720355077.XU CN206655233U (en) | 2017-04-06 | 2017-04-06 | Deep foundation pit slope protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720355077.XU CN206655233U (en) | 2017-04-06 | 2017-04-06 | Deep foundation pit slope protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206655233U true CN206655233U (en) | 2017-11-21 |
Family
ID=60318071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720355077.XU Expired - Fee Related CN206655233U (en) | 2017-04-06 | 2017-04-06 | Deep foundation pit slope protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206655233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107794931A (en) * | 2017-11-24 | 2018-03-13 | 浙江宏联建设有限公司 | Pattern foundation pit supporting structure |
-
2017
- 2017-04-06 CN CN201720355077.XU patent/CN206655233U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107794931A (en) * | 2017-11-24 | 2018-03-13 | 浙江宏联建设有限公司 | Pattern foundation pit supporting structure |
| CN107794931B (en) * | 2017-11-24 | 2019-10-22 | 浙江宏联建设有限公司 | Foundation pit supporting construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103790182B (en) | A kind of hydraulic engineering vertical water stopping structure and manufacture thereof and construction method | |
| CN103774699B (en) | Vertical water-stop structure for concrete engineering expansion joint as well as manufacturing and construction methods for same | |
| CN107542115A (en) | Underground project waterproof structure and its construction method | |
| CN109236322A (en) | It a kind of artificial bottom plate preventing soft-rock tunnel pucking and its constructs and method for maintaining | |
| CN204198302U (en) | A kind of tower crane base water-tight device | |
| CN203808113U (en) | Concrete engineering expansion joint vertical water-stop structure | |
| CN206655233U (en) | Deep foundation pit slope protector | |
| CN207228173U (en) | A kind of underground project waterproof structure | |
| CN103866775B (en) | The means of defence of a kind of cold district dispersion soil side slope | |
| CN112459115A (en) | Construction method for rebuilding basement exterior wall of existing building | |
| CN111622184A (en) | Flexible anti-seepage connecting structure for mask-toe board of mask rock-fill dam and construction method of flexible anti-seepage connecting structure | |
| CN203977451U (en) | Electric power overhaul well | |
| CN203834477U (en) | Waterproof structure of anti-floating anchor bars of basement | |
| CN208039491U (en) | Outer wall of basement waterproof construction post-cast strip component | |
| CN204645097U (en) | A kind of hydro-expansive rubber repairs deformation joint structure | |
| CN205530142U (en) | Flood control antidetonation rock -fill dam | |
| CN207537973U (en) | A kind of landscape pond expanded joint structure | |
| CN104195996A (en) | Horizontal upward-turning type movable flood control system | |
| CN204959623U (en) | Top is advanced construction and is cut arc culvert with steel bell socket | |
| CN211596838U (en) | Civil engineering construction template reinforced structure | |
| CN202658616U (en) | Water draining and guiding device for constructing single-sided wall of foundation pit | |
| CN206956791U (en) | A kind of new-old concrete interface waterproof sealing structure | |
| CN206245355U (en) | A kind of new joint waterproof structure of underground diaphragm wall | |
| CN206941658U (en) | The double water sealing structures of concrete extension joint | |
| CN205975705U (en) | Basement top board waterproof structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171121 Termination date: 20210406 |