CN207846429U - A kind of phreatic high, high basement rock go out the foundation pit supporting system shown up - Google Patents
A kind of phreatic high, high basement rock go out the foundation pit supporting system shown up Download PDFInfo
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- CN207846429U CN207846429U CN201721552956.8U CN201721552956U CN207846429U CN 207846429 U CN207846429 U CN 207846429U CN 201721552956 U CN201721552956 U CN 201721552956U CN 207846429 U CN207846429 U CN 207846429U
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- grouting
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- 239000011435 rock Substances 0.000 title claims abstract description 35
- 239000002689 soil Substances 0.000 claims abstract description 20
- 239000007921 spray Substances 0.000 claims description 43
- 238000007569 slipcasting Methods 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 13
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 35
- 238000010586 diagram Methods 0.000 description 11
- 238000007789 sealing Methods 0.000 description 9
- 238000009412 basement excavation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000003673 groundwater Substances 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 206010015535 Euphoric mood Diseases 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
A kind of phreatic high, high basement rock go out the foundation pit supporting system shown up, the support system includes the water-stop curtain of the slope protection pile and outer row of interior row, the water-stop curtain is combination water-stop curtain, include row's high pressure water-seal pile in gap between closing slope protection pile stake, further includes outer row's sleeve valve grouting body in gap and the closed interior row's sleeve valve grouting body of enhancing between closing high pressure water-seal pile stake.The utility model combines the advantages of high pressure water-seal pile and sleeve valve barrel grouting, and Multiple Combination curtain system reaches preferable water-stagnating effect.It is especially with the obvious advantage in the case where phreatic high, high basement rock go out to show up layer geological conditions, while the foundation pit periphery soil body can also be reinforced, it is a kind of support system of economical and efficient.
Description
Technical field
The utility model is related to a kind of foundation pit supporting systems, especially a kind of to go out to show up for phreatic high, high basement rock
Foundation pit supporting system.
Background technology
With the quickening of Urbanization in China, city is on the middle and senior level and high-rise building emerges in multitude, and base pit engineering is continuous
Develop towards especially big ultra-deep direction, the deep basal pit of 20m even 30m or more is commonplace.In order to ensure that base pit engineering is smoothly implemented,
Underground water must be handled.Caused at present since groundwater treatment is improper foundation pit collapse or precipitation cause foundation pit road surface,
The engineering accident that building settlement collapses happens occasionally.Therefore, more and more areas expressly provide that deep foundation pit precipitation must be set
Water-stop curtain is set, to reduce influence of the base pit dewatering to surrounding enviroment.Groundwater treatment mode, especially water-stop curtain pattern are selected
Select the key factor that quality has become foundation pit success or failure
Level of ground water is higher, in deep-foundation pit engineering of rich groundwater, soil moisture in layer is high, groundwater treatment difficulty
Greatly, underground water influences whether the stabilization of side slope or crater wall, and the degree of danger brought to Construction of Deep Excavation Engineering is very high.Basement rock exposure
The high base pit engineering in face is not excluded for the possibility of Local topography extensional cranny development although rock mass is substantially complete, especially on
It is bad that portion's soil layer permeates by force boundary surface treatment with lithosphere, serious leakage when can cause earth excavation.
There are no going out the synthesis water-stopping method shown up for phreatic high, high basement rock in existing patent, and this work
Journey geological conditions is more typical in engineering practice.There is situations such as subway, building especially for foundation pit periphery, to foundation pit deformation
Higher is required with sealing.The flexibility that the prior art selects different operating modes and deformation requirements is poor, therefore needs a kind of on highland
Lower water level, high basement rock go out effective water-stop technology under geological conditions of showing up, and can solve that phreatic high sealing difficulty is big, foundation pit
The problem of Deformation control hardly possible, but can solve the problems, such as high basement rock go out to show up caused soil-rock interface leak it is serious, while can
With according to the support system of different operating modes and deformation requirements flexibility selection construction pile-type and sequence of construction.
Utility model content
The purpose of this utility model is to provide a kind of phreatic high, high basement rock goes out the foundation pit supporting system shown up, and to solve
Certainly existing support system cannot be satisfied phreatic high, high basement rock goes out the foundation pit situation shown up there are construction risk degree high, extensional
Cranny development possibility is big, when earth excavation the technical issues of serious leakage, stops when especially there are subway, building in foundation pit periphery
The technical issues of shipwreck degree bigger, deformation control of foundation pit are more difficult to, and to solve for different operating modes and deformation requirements selection branch
The poor problem of watch box system flexibility.
To achieve the above object, the utility model adopts the following technical solution：
A kind of phreatic high, high basement rock go out the foundation pit supporting system shown up, including the slope protection pile of interior row and outer row only
Water curtain, the water-stop curtain are row's high pressure water-seal pile in gap between combination water-stop curtain, including closing slope protection pile stake, are also wrapped
It includes outer row's sleeve valve grouting body in gap between closing high pressure water-seal pile stake and enhances closed interior row's sleeve valve grouting body, the high pressure is stopped
The mode in gap is engaged directly closing or outside between stake and closes indirectly between water stake closing slope protection pile stake.
The high pressure water-seal pile is high-pressure rotary jet grouting pile, high-pressure rotary jet grouting pile interval setting occlusion closing slope protection pile stake successively
Between gap, outer row's sleeve valve grouting body squeezes into outer row's sleeve valve grouting pipe on the outside of high-pressure rotary jet grouting pile in the soil body successively by interval
Slip casting is formed, and interior row's sleeve valve grouting body squeezes into interior row between Pile of High-pressure Spiral Jet in the soil body of gap successively by being spaced setting
Sleeve valve grouting pipe slip casting is formed.
The high pressure water-seal pile is that high pressure swing sprays stake, and overlap joint forms high pressure swing spray stake successively between the high pressure swing spray stake stake
Wall is squeezed into outer row's sleeve valve grouting pipe that high pressure swing is sprayed on the outside of stake in the soil body by interval between outer row's sleeve valve grouting body and is noted successively
Slurry is formed, and interior row's sleeve valve grouting body is squeezed into slope protection pile and high pressure swing by interval and sprayed between stake stake in the soil body of gap successively
Row's sleeve valve grouting pipe slip casting is formed.
Outer row's sleeve valve grouting body squeeze into position be located at high pressure swing spray stake stake between lap position on extension cord, institute
State interior row's sleeve valve grouting body squeeze into position be located at high pressure swing spray stake stake between lap position inside extensions on, outer row's sleeve valve grouting
Body is arranged in a one-to-one correspondence with interior row's sleeve valve grouting inside and outside.
The wave shaped side of the high pressure swing spray wall is back to foundation pit inside, and planar side is on the inside of foundation pit.
The high pressure water-seal pile supporting top weathered rock formation, outer row's sleeve valve grouting body and interior row's sleeve valve grouting body supporting
The high-strength micro- weathered rock formation in lower part.
The utility model has the characteristics that and advantageous effect compared with prior art：
The utility model proposes support system include foundation pit periphery slope protection pile composite high pressure water-seal pile-sleeve valve barrel grouting group
Water-stop curtain is closed, combination water-stop curtain forms closed sealing system with slope protection pile, and high pressure water-seal pile is closed using high-pressure slip-casting
Gap between slope protection pile stake, outer row's sleeve valve barrel grouting body, which is formed, closes curtain, empty between the interior further bored pile of row's sleeve valve barrel grouting body
Gap achievees the purpose that close sealing, the inside and outside hydraulic connection in partition hole.
The utility model can select different pile-type and apply to more preferably effectively be directed to different operating modes according to deformation requirements
Work sequence.The base pit engineering shown up is gone out for high basement rock, conventional water-stop curtain is of poor quality, and water-stagnating effect is bad.High-pressure rotary jet grouting pile
It is combined with sleeve valve barrel grouting, ensures that upper soil horizon and lithosphere boundary surface treatment are good, sleeve valve barrel grouting can fill local rock
Stony fracture gap improves water-stagnating effect.And there are subway, building i.e. to foundation pit deformation and sealing requirement more high feelings on foundation pit periphery
When condition, the form water-stagnating effect of pendulum spray wall made of high pressure swing sprays stake cross-linking composition is more preferable, is conducive to control deformation.
In order to reduce the possibility of leak between stake after earth excavation, row's mini-valve tube is arranged between pendulum spray wall and support pile
Slip casting prevents Bai Pen lap-joints construction quality from being had an impact to water-stagnating effect, and water-stagnating effect is two rows of compared with being arranged on the outside of pendulum spray wall
Sleeve valve barrel grouting is more preferable.
The utility model combines the advantages of high pressure water-seal pile and sleeve valve barrel grouting, and Multiple Combination curtain system reaches preferable
Water-stagnating effect.It is with the obvious advantage in the case where phreatic high, high basement rock go out to show up layer geological conditions, while foundation pit week can also be reinforced
The side soil body is a kind of support system of economical and efficient.
Description of the drawings
The utility model is described in more detail below in conjunction with the accompanying drawings.
Fig. 1 is foundation pit supporting system showing using high-pressure rotary jet grouting pile-sleeve valve barrel grouting combination curtain structure in embodiment one
The step of intention and construction method four, completes schematic diagrames.
The step of Fig. 1 a are Fig. 1 construction methods one completes schematic diagram.
The step of Fig. 1 b are Fig. 1 construction methods two completes schematic diagram.
The step of Fig. 1 c are Fig. 1 construction methods three completes schematic diagram.
Fig. 2 is that foundation pit supporting system is illustrated using high pressure swing spray stake-sleeve valve barrel grouting combination curtain structure in embodiment two
Four completion schematic diagram the step of construction method in figure and the first and second.
The step of Fig. 2 a are the first construction methods of Fig. 2 one completes schematic diagram.
The step of Fig. 2 b are the first construction methods of Fig. 2 two completes schematic diagram.
The step of Fig. 2 c are the first construction methods of Fig. 2 three completes schematic diagram.
The step of Fig. 2 d are second of construction methods of Fig. 2 one completes schematic diagram.
The step of Fig. 2 e are second of construction methods of Fig. 2 two completes schematic diagram.
The step of Fig. 2 f are second of construction methods of Fig. 2 three completes schematic diagram.
Reference numeral：1- slope protection piles, 21- high-pressure rotary jet grouting piles, 22- high pressure swings spray stake, 23- wave shaped sides, 24-
Sleeve valve grouting body, 4- are arranged in planar side, 3- arranges sleeve valve grouting body outside.
Specific implementation mode
Embodiment one.
A kind of phreatic high, high basement rock go out the foundation pit supporting system shown up, including the slope protection pile 1 of interior row and outer row only
Water curtain, the water-stop curtain are row's high pressure water-seal pile in gap between combination water-stop curtain, including closing slope protection pile stake, are also wrapped
It includes outer row's sleeve valve grouting body 4 in gap between closing high pressure water-seal pile stake and enhances closed interior row's sleeve valve grouting body 3.The high pressure
Water-seal pile supporting top weathered rock formation, the 3 high-strength gentle breeze in supporting lower part of outer row's sleeve valve grouting body 4 and interior row's sleeve valve grouting body
Rock stratum.
Its mesohigh water-seal pile can be according to Practical Project site condition and geological conditions selection high-pressure rotary jet grouting pile 21 or high pressure
Pendulum spray stake 22.
Shown in Figure 1, the sides A are on the inside of foundation pit, and the sides B are on the outside of foundation pit.When high pressure water-seal pile is high-pressure rotary jet grouting pile 21, institute
Stating the setting of the interval of high-pressure rotary jet grouting pile 21, gap between slope protection pile stake is closed in occlusion successively, and outer row's sleeve valve grouting body 4 passes through interval
The outer row's sleeve valve grouting pipe slip casting squeezed into successively in the 21 outside soil body of high-pressure rotary jet grouting pile is formed, and interior row's sleeve valve grouting body 3 is logical
Interior row's sleeve valve grouting pipe slip casting that super-interval setting is squeezed into successively between high-pressure rotary jet grouting pile 21 in the soil body of gap is formed.
For different site condition and geological conditions, different sequences of construction have certain influence to water-stagnating effect, formally apply
Working hour must rationally control sequence of construction and sleeve valve barrel grouting position.
It is corresponding that for general operating mode, this phreatic high, high basement rock go out the construction method for the foundation pit supporting system shown up,
Construction procedure is as follows：
The grouting amount of high-pressure rotary jet grouting pile promotes the construction parameters such as speed, rotary speed according to live churning experiment determination, sleeve
The water sealing consolidation effect of sleeve valve barrel grouting is verified before valve pipe mortar depositing construction by enclosing well method, and construction technology ginseng is determined by experiment
Number.
Step 1, slope protection pile 1 of constructing successively on the inside of foundation pit, after the completion referring to Fig. 1 a.
Step 2 is constructed high-pressure rotary jet grouting pile 21 in the outside of slope protection pile, successively after the completion referring to Fig. 1 b.
Step 3 squeezes into outer row's sleeve valve grouting pipe in the outside of high-pressure rotary jet grouting pile 21 and slip casting forms outer row's sleeve valve note successively
Slurry 4, after the completion referring to Fig. 1 c.
Step 4 is arranged after the completion of the slip casting of sleeve valve grouting pipe at least seven days outside, then between two neighboring high-pressure rotary jet grouting pile 1
Interior row's sleeve valve grouting pipe is squeezed into the soil body in gap successively and slip casting forms interior row's sleeve valve grouting body 3, after the completion referring to Fig. 1.
Inside sleeve valve barrel grouting body is combined to fill out by the closure of high-pressure rotary jet grouting pile and outside sleeve valve barrel grouting inside and outside both sides
It fills to achieve the purpose that sealing to greatest extent.
Embodiment two.
The higher foundation pit of deformation requirements also may be selected to spray high-pressure rotary-spray wall made of 22 cross-linking composition of stake by high pressure swing.
A kind of phreatic high, high basement rock go out the foundation pit supporting system shown up, including the slope protection pile 1 of interior row and outer row only
Water curtain, the water-stop curtain are row's high pressure water-seal pile in gap between combination water-stop curtain, including closing slope protection pile stake, are also wrapped
It includes outer row's sleeve valve grouting body 4 in gap between closing high pressure water-seal pile stake and enhances closed interior row's sleeve valve grouting body 3.
Shown in Figure 2, the sides A are on the inside of foundation pit, and the sides B are on the outside of foundation pit.The high pressure water-seal pile is that high pressure swing sprays stake 22,
Overlap joint forms high pressure swing spray piling wall successively between high pressure swing spray stake 22, between outer row's sleeve valve grouting body 4 by interval according to
The secondary outer row's sleeve valve grouting pipe slip casting squeezed into the high pressure swing spray 22 outside soil body of stake is formed, and interior row's sleeve valve grouting body 3 passes through
Interior row's sleeve valve grouting pipe slip casting that interval squeezes between slope protection pile and high pressure swing spray stake 22 in the soil body of gap successively is formed.The height
The wave shaped side 23 of pressure pendulum spray wall is back to foundation pit inside, and planar side 24 is on the inside of foundation pit.
Outer row's sleeve valve grouting body 4 squeeze into position be located at high pressure swing spray stake stake between lap position on extension cord,
The position of squeezing into of interior row's sleeve valve grouting body 3 is located between high pressure swing spray stake stake in the inside extensions of lap position, and outer row tucks inside the sleeve valve
It is arranged in a one-to-one correspondence inside and outside injecting cement paste 4 and interior row's sleeve valve grouting body 3.This setup can spray what stake 22 was engaged in high pressure swing
Weakness zone enhances water-stagnating effect.
High pressure swing, which is sprayed the construction parameters such as the grouting amount of stake, promotion speed, rotary speed and put according to scene, sprays experiment determination, sleeve
The water sealing consolidation effect of sleeve valve barrel grouting is verified before valve pipe mortar depositing construction by enclosing well method, and construction technology ginseng is determined by experiment
Number.
Sedimentation and the especially sensitive operating mode of displacement caused by the water level decreasing of underground, near operated subway track, first
Kind phreatic high, high basement rock go out the construction method for the foundation pit supporting system shown up, and construction procedure is as follows：
Step 1, slope protection pile 1 of constructing successively on the inside of foundation pit, after the completion referring to Fig. 2 a.
Step 2, in the outside of slope protection pile 1, high pressure swing of constructing successively sprays stake 22, the injection direction of high pressure swing spray stake 22
On the inside of back to foundation pit, after the completion referring to Fig. 2 b.
Step 3, outer row's sleeve valve grouting pipe is squeezed into the outside that stake 22 is sprayed in high pressure swing successively and slip casting forms outer row's sleeve valve note
Slurry 4, after the completion referring to Fig. 2 c.
Step 4, in order to reduce the possibility of leak between stake after earth excavation, after the completion of arranging sleeve valve grouting pipe slip casting outside
At least seven days, then the soil body in gap squeezes into interior row's sleeve valve grouting pipe and slip casting successively between slope protection pile 1 and high pressure swing spray stake 22
Row's sleeve valve grouting body 3 in being formed, after the completion referring to Fig. 2.
To there is the operating mode for needing special protection construction of structures, second of phreatic high, high basement rock go out the foundation pit shown up
The construction method of support system, construction procedure are as follows：
Step 1, to prevent slope protection pile pore-forming first construction high pressure swing of caving in from spraying stake 22, the injection of high pressure swing spray stake 22
Direction is back to foundation pit inside, after the completion referring to Fig. 2 d.
Step 2, outer row's sleeve valve grouting pipe is squeezed into the outside that stake 22 is sprayed in high pressure swing successively and slip casting forms outer row's sleeve valve note
Slurry 4 reinforces waterproof, after the completion referring to Fig. 2 e.
Step 3, the inside that stake 22 is sprayed in high pressure swing is constructed slope protection pile 1 successively, after the completion referring to Fig. 2 f.
Step 4 is arranged after the completion of the slip casting of sleeve valve grouting pipe at least seven days outside, then sprays stake 22 in slope protection pile 1 and high pressure swing
Between the soil body in gap squeeze into interior row's sleeve valve grouting pipe successively and slip casting forms interior row's sleeve valve grouting body 3, reduce stake after earth excavation
Between leak possibility, after the completion referring to Fig. 2.
Rinse block protection after the completion of interior row's sleeve valve grouting pipe once grouting described in above example well, it can conduct
Secondary leak stopping uses.
In the embodiments of the present invention one and embodiment two, high-pressure rotary jet grouting pile-sleeve valve barrel grouting combined type is respectively adopted
Water-stop curtain or pendulum spray stake-sleeve valve barrel grouting Combined water-stopping curtain, high-pressure rotary jet grouting pile 21 or high pressure swing spray stake 22 utilize high pressure
Gap between slope protection pile stake is closed in slip casting, and outer row's sleeve valve barrel grouting body 4 forms closing curtain, and interior row's sleeve valve barrel grouting body 3 is further
Gap between bored pile achievees the purpose that close sealing.
High-pressure rotary jet grouting pile-sleeve valve barrel grouting Combined water-stopping curtain or pendulum spray stake-sleeve valve barrel grouting Combined water-stopping curtain
According to Practical Project site condition and geological conditions sequence of construction and sleeve valve barrel grouting position need to be reasonably selected before formal construction
It sets.Wherein high-pressure rotary jet grouting pile 21 and high pressure swing spray stake 22 belongs to high pressure jet grouting, for the sleeve valve barrel grouting shadow that prevents from having constructed
Pile-forming effect is rung, therefore high-pressure rotary jet grouting pile 21 or the sequence of construction of high pressure swing spray stake 22 are always prior to inside sleeve valve barrel grouting body 3
With outside sleeve valve barrel grouting body 4.The utility model goes out to show up the place of stratum underground water especially suitable for phreatic high, high basement rock
Reason, is a kind of synthesis water-stop technology of economical and efficient.
Claims (6)
1. a kind of phreatic high, high basement rock go out the foundation pit supporting system shown up, include the slope protection pile of interior row（1）With stopping for outer row
Water curtain, it is characterised in that：The water-stop curtain is row's high pressure in gap between combination water-stop curtain, including closing slope protection pile stake
Water-seal pile further includes outer row's sleeve valve grouting body in gap between closing high pressure water-seal pile stake（4）It is noted with closed interior row's sleeve valve is enhanced
Slurry（3）, it is indirect to be engaged directly closing or outside between stake for the mode in gap between the high pressure water-seal pile closing slope protection pile stake
Closing.
2. phreatic high according to claim 1, high basement rock go out the foundation pit supporting system shown up, it is characterised in that：Institute
It is high-pressure rotary jet grouting pile to state high pressure water-seal pile（21）, the high-pressure rotary jet grouting pile（21）Interval setting is successively between occlusion closing slope protection pile stake
Gap, outer row's sleeve valve grouting body（4）High-pressure rotary jet grouting pile is squeezed into successively by interval（21）Outer row sleeve valve in the soil body of outside
Grouting Pipe slip casting is formed, interior row's sleeve valve grouting body（3）High-pressure rotary jet grouting pile is squeezed into successively by being spaced setting（21）It is empty between stake
Interior row's sleeve valve grouting pipe slip casting in the gap soil body is formed.
3. phreatic high according to claim 1, high basement rock go out the foundation pit supporting system shown up, it is characterised in that：Institute
It is that high pressure swing sprays stake to state high pressure water-seal pile（22）, the high pressure swing spray stake（22）Overlap joint forms high pressure swing spray piling wall successively between stake,
Outer row's sleeve valve grouting body（4）Between by interval squeeze into successively high pressure swing spray stake（22）Outer row's sleeve valve grouting in the soil body of outside
Pipe slip casting is formed, interior row's sleeve valve grouting body（3）Slope protection pile is squeezed into successively by interval sprays stake with high pressure swing（22）It is empty between stake
Interior row's sleeve valve grouting pipe slip casting in the gap soil body is formed.
4. phreatic high according to claim 3, high basement rock go out the foundation pit supporting system shown up, it is characterised in that：Institute
State outer row's sleeve valve grouting body（4）Squeeze into position be located at high pressure swing spray stake stake between lap position on extension cord, the interior row
Sleeve valve grouting body（3）Squeeze into position be located at high pressure swing spray stake stake between lap position inside extensions on, outer row's sleeve valve grouting body
（4）With interior row's sleeve valve grouting body（3）It is inside and outside to be arranged in a one-to-one correspondence.
5. phreatic high according to claim 4, high basement rock go out the foundation pit supporting system shown up, it is characterised in that：Institute
State the wave shaped side of high pressure swing spray wall（23）On the inside of back to foundation pit, planar side（24）On the inside of foundation pit.
6. the phreatic high, high basement rock according to claim 1-5 any one go out the foundation pit supporting system shown up, special
Sign is：The high pressure water-seal pile supporting top weathered rock formation, outer row's sleeve valve grouting body（4）With interior row's sleeve valve grouting body
（3）The high-strength micro- weathered rock formation in supporting lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721552956.8U CN207846429U (en) | 2017-11-20 | 2017-11-20 | A kind of phreatic high, high basement rock go out the foundation pit supporting system shown up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721552956.8U CN207846429U (en) | 2017-11-20 | 2017-11-20 | A kind of phreatic high, high basement rock go out the foundation pit supporting system shown up |
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| Publication Number | Publication Date |
|---|---|
| CN207846429U true CN207846429U (en) | 2018-09-11 |
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ID=63422630
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721552956.8U Expired - Fee Related CN207846429U (en) | 2017-11-20 | 2017-11-20 | A kind of phreatic high, high basement rock go out the foundation pit supporting system shown up |
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| Country | Link |
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| CN (1) | CN207846429U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989046A (en) * | 2017-11-20 | 2018-05-04 | 中建局集团建设发展有限公司 | A kind of phreatic high, high basement rock go out the foundation pit supporting system shown up and its engineering method |
| CN113006109A (en) * | 2021-03-02 | 2021-06-22 | 北京住总第一开发建设有限公司 | Construction method of foundation pit waterproof curtain of strongly permeable stratum area |
-
2017
- 2017-11-20 CN CN201721552956.8U patent/CN207846429U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989046A (en) * | 2017-11-20 | 2018-05-04 | 中建局集团建设发展有限公司 | A kind of phreatic high, high basement rock go out the foundation pit supporting system shown up and its engineering method |
| CN113006109A (en) * | 2021-03-02 | 2021-06-22 | 北京住总第一开发建设有限公司 | Construction method of foundation pit waterproof curtain of strongly permeable stratum area |
| CN113006109B (en) * | 2021-03-02 | 2022-09-09 | 北京住总第一开发建设有限公司 | Construction method of waterproof curtain of foundation pit of highly permeable stratum area |
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