CN206736929U - Protect the foundation pit structure of surrounding building - Google Patents
Protect the foundation pit structure of surrounding building Download PDFInfo
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- CN206736929U CN206736929U CN201720589157.1U CN201720589157U CN206736929U CN 206736929 U CN206736929 U CN 206736929U CN 201720589157 U CN201720589157 U CN 201720589157U CN 206736929 U CN206736929 U CN 206736929U
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- cast
- situ bored
- bored pile
- pile
- foundation ditch
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Abstract
The utility model discloses a kind of foundation pit structure for protecting surrounding building, it is related to foundation pit construction technology, aim to provide a kind of foundation pit structure for protecting surrounding building, with during foundation pit construction reduce to building periphery soil disturbance the advantages of, its drip irrigation device is to include foundation ditch, foundation ditch is arranged on close to the cast-in-situ bored pile one of building side and is circumferentially provided on the cast-in-situ bored piles two of the other sides of foundation ditch, the external cast-in-situ bored pile two of Foundation Pit is circumferentially with tri-axes deep mixing stake one, root pile provided with gap between the adjacent cast-in-situ bored pile one of closing between the external adjacent cast-in-situ bored pile one of Foundation Pit, the foundation ditch is provided with sleeve valve barrel grouting between adjacent root pile and cast-in-situ bored pile one.
Description
Technical field
Foundation pit construction technology is the utility model is related to, more particularly to a kind of foundation pit structure for protecting surrounding building.
Background technology
Since reform and opening-up, the fast development of China politics, economy, cultural undertakings, the climax of urban construction, city have been brought
City's land resource is increasingly in short supply, and urban construction gradually extends to aerial and underground stereo.In the urban construction of an inch of land is an inch of gold, ground
The utilization in lower space, turn into a developing direction.Become therefore, being close to existing building and carrying out underground structure excavation construction
It is increasingly frequent.The stabilization for the lower end soil body for how ensuring to be close to existing building in work progress turns into one in work progress
Emphasis and difficult point.
Utility model content
The purpose of this utility model is to provide a kind of foundation pit structure for protecting surrounding building, has in foundation pit construction process
The advantages of middle disturbance of the reduction to the building periphery soil body.
Above-mentioned technical purpose of the present utility model technical scheme is that：One kind protection neighboring buildings
The foundation pit structure of thing, including foundation ditch, be arranged on foundation ditch close to the cast-in-situ bored pile one of building side and be circumferentially provided on base
The cast-in-situ bored pile two of other sides is cheated, the external cast-in-situ bored pile two of Foundation Pit is circumferentially with tri-axes deep mixing stake one, the base
Cheat the root pile provided with gap between the adjacent cast-in-situ bored pile one of closing between external adjacent cast-in-situ bored pile one, the foundation ditch in hole
Sleeve valve barrel grouting is provided between adjacent root pile and cast-in-situ bored pile one.
By using above-mentioned technical proposal, cast-in-situ bored pile one and cast-in-situ bored pile two play protection to the soil body in foundation ditch
Effect, the external circumferential of cast-in-situ bored pile two play waterproof action provided with tri-axes deep mixing stake one, and reducing infiltration in foundation ditch prevents foundation ditch
Sedimentation, due to cast-in-situ bored pile one close to building set, the root pile now set between adjacent cast-in-situ bored pile one,
The gap between cast-in-situ bored pile one is enclosed, the underground water not allowed outside foundation ditch is infiltered into foundation ditch, and root pile is being applied
Man-hour is small to the range of disturbance of the soil body, and sleeve valve barrel grouting strengthens the soil structures on root pile periphery, and the note of sleeve valve barrel grouting
Slurry pressure can control, and reduce the disturbance to the periphery soil body, and now cast-in-situ bored pile one, root pile and sleeve valve barrel grouting reduce
Disturbance in work progress to the periphery soil body, and control the sedimentation and deformation of Nearby Structure, on the other hand also meet base
The requirement of sealing in hole.
The utility model is further arranged to：It is adjacent that closing is provided between the external adjacent cast-in-situ bored pile two of Foundation Pit
The high-pressure rotary jet grouting pile one in gap between cast-in-situ bored pile two.
By using above-mentioned technical proposal, the water that high-pressure rotary jet grouting pile one is reduced outside foundation ditch passes through between cast-in-situ bored pile two
Gap enter in foundation ditch, enhance the water resistance of foundation ditch.
The utility model is further arranged to：The diameter of the cast-in-situ bored pile one is more than the diameter of cast-in-situ bored pile two.
By using above-mentioned technical proposal, the diameter of cast-in-situ bored pile one can carry when big compared with the diameter of cast-in-situ bored pile two
The anti-bending strength of high cast-in-situ bored pile one, improve the soil structures stability on the periphery of cast-in-situ bored pile one.
The utility model is further arranged to：It is adjacent provided with closing between adjacent cast-in-situ bored pile one in the Foundation Pit
The high-pressure rotary jet grouting pile two in gap between cast-in-situ bored pile one.
By using above-mentioned technical proposal, high-pressure rotary jet grouting pile two further increases foundation ditch close to the anti-of the side of building
Water-based energy, and foundation ditch is reinforced.
The utility model is further arranged to：The high-pressure rotary jet grouting pile two is being provided with three away from the side of cast-in-situ bored pile one
Axle stirs stake two deeply, and the tri-axes deep mixing stake two is provided with multilayer.
By using above-mentioned technical proposal, tri-axes deep mixing stake two is being added outside foundation ditch water resistance, to high-pressure rotary jet grouting pile
Two position is reinforced.
The utility model is further arranged to：The lower end of tri-axes deep mixing stake two is provided with sub-merged pier.
By using above-mentioned technical proposal, sub-merged pier strengthens position of the tri-axes deep mixing stake two in foundation ditch, and control foundation ditch is opened
Deformation during digging.
The utility model is further arranged to：Vertically it is all provided with the cast-in-situ bored pile one and cast-in-situ bored pile two
Have some layer concrete support bars, the one end of the concrete support bar on the cast-in-situ bored pile one away from cast-in-situ bored pile one with
Adjacent cast-in-situ bored pile two connects, the one end of concrete support bar away from cast-in-situ bored pile two on the cast-in-situ bored pile two
It is connected with adjacent or relative cast-in-situ bored pile two.
By using above-mentioned technical proposal, multi-layer concrete support bar strengthens cast-in-situ bored pile one and cast-in-situ bored pile two
Between connection, enhance the globality of cast-in-situ bored pile one and cast-in-situ bored pile two.
In summary, the utility model has the advantages that：In the drilling that foundation ditch is set close to the side of building
Bored concrete pile one strengthens the soil structures in foundation ditch, and root pile closes the gap between adjacent cast-in-situ bored pile, reduces base
Water outside hole enters in foundation ditch, and the setting of sleeve valve barrel grouting reduces water and entered between root pile and cast-in-situ bored pile one,
And the disturbance of root pile and sleeve valve barrel grouting when constructing to the periphery soil body, protect the building on foundation ditch periphery.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment；
Fig. 2 is the close-up schematic view in A portions in Fig. 1；
Fig. 3 is the close-up schematic view in B portions in Fig. 1；
Fig. 4 is the structural representation for being used to embody concrete support bar of the present embodiment；
Fig. 5 is the present embodiment for embodying the concrete support bar structural representation on cast-in-situ bored pile one.
In figure, 1, foundation ditch；11st, cast-in-situ bored pile one；12nd, cast-in-situ bored pile two；13rd, tri-axes deep mixing stake one；14th, tree root
Stake；15th, sleeve valve barrel grouting；16th, high-pressure rotary jet grouting pile one；17th, high-pressure rotary jet grouting pile two；18th, tri-axes deep mixing stake two；181st, sub-merged pier；19、
Concrete support bar.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of foundation pit structure for protecting surrounding building, such as Fig. 1, including foundation ditch 1, foundation ditch 1 is arranged on close to building one
The cast-in-situ bored pile 1 of side and the cast-in-situ bored pile 2 12 for being circumferentially provided on 1 other sides of foundation ditch, the He of cast-in-situ bored pile 1
Cast-in-situ bored pile 2 12 strengthens the structure of the soil body in foundation ditch 1, plays a part of earth-retaining, and the diameter of cast-in-situ bored pile 1 is big
In the diameter of cast-in-situ bored pile 2 12, i.e., cast-in-situ bored pile 1 is used into large diameter bored pile, specially diameter 1.4m,
Cast-in-situ bored pile 2 12 uses small-diameter cast-in-place bored pile, specially diameter 1.2m, and cast-in-situ bored pile 1 is squeezed into the soil body
Depth is relatively deep compared with cast-in-situ bored pile 2 12, and large diameter bored pile can improve the anti-bending strength of cast-in-situ bored pile 1, subtract
Research of Small Bored Cast-in-situ piles 1 is deformed when by soil pressure.
Such as Fig. 2, foundation ditch 1 is provided between the adjacent cast-in-situ bored pile 1 of closing between cheating external adjacent cast-in-situ bored pile 1
The root pile 14 in gap, the water that root pile 14 is reduced outside foundation ditch 1 enter in foundation ditch 1, and root pile 14 is in work progress to soil
The disturbance of body is small so that foundation ditch 1 reduces the disturbance to the surrounding building soil body while with water-proof function；Foundation ditch 1 simultaneously
Sleeve valve barrel grouting 15 is provided between adjacent root pile 14 and cast-in-situ bored pile 1, sleeve valve barrel grouting 15 strengthens root pile 14
The soil structures on periphery so that the position of root pile 14 is fixed, while the grouting pressure of sleeve valve barrel grouting 15 can control, is reduced
Disturbance to the periphery soil body, now cast-in-situ bored pile 1, root pile 14 and sleeve valve barrel grouting 15 are reduced in work progress
Disturbance to the periphery soil body, controls the sedimentation and deformation of Nearby Structure, and on the other hand also meet sealing in foundation ditch 1 will
Ask；It can be set during construction first by cast-in-situ bored pile 1 and cast-in-situ bored pile 2 12 dozens on the periphery of foundation ditch 1 by root pile 14
Between cast-in-situ bored pile 1, then sleeve valve barrel grouting 15 is beaten between root pile 14 and cast-in-situ bored pile 1.
Such as Fig. 2, enter to further reduce the water outside foundation ditch 1 from the gap between cast-in-situ bored pile 1 in foundation ditch 1,
Therefore foundation ditch 1 cheats the high pressure provided with gap between the adjacent cast-in-situ bored pile 1 of closing between inherent adjacent cast-in-situ bored pile 1
Rotary churning pile 2 17,2 17 pairs of foundation ditches 1 of high-pressure rotary jet grouting pile are reinforced；In addition high-pressure rotary jet grouting pile 2 17 is away from cast-in-situ bored pile one
11 side is provided with tri-axes deep mixing stake 2 18, and tri-axes deep mixing stake 2 18 is provided with multilayer, 2 18 pairs of foundation ditches 1 of tri-axes deep mixing stake cheat in enter
Row is reinforced；Such as Fig. 5, sub-merged pier 181 is provided with the lower end of tri-axes deep mixing stake 2 18 in addition so that control three in the digging process of foundation ditch 1
Axle stirs the deformation of stake 2 18 deeply.
Such as Fig. 3, foundation ditch 1 cheats external cast-in-situ bored pile 2 12 and is circumferentially with tri-axes deep mixing stake 1, tri-axes deep mixing stake 1
Water outside foundation ditch 1 is reduced by the gap between cast-in-situ bored pile 2 12 to enter in foundation ditch 1, at the same in order to further reduce into
Enter the water in foundation ditch 1, therefore be provided between foundation ditch 1 cheats external adjacent cast-in-situ bored pile 2 12 and close adjacent cast-in-situ bored pile two
The high-pressure rotary jet grouting pile 1 in gap between 12.
Such as Fig. 4 and Fig. 5, if being vertically equipped with dried layer coagulation on cast-in-situ bored pile 1 and cast-in-situ bored pile 2 12
Native support bar 19, specially three layer concrete support bars 19, second layer concrete support bar 19 and first layer concrete support bar
Distance is 4.5m to 5m between 19, and distance is also between third layer concrete support bar 19 and second layer concrete support bar 19
4.5m to 5m, the one end of concrete support bar 19 away from cast-in-situ bored pile 1 and adjacent drilling on cast-in-situ bored pile 1
Bored concrete pile 2 12 connects, the one end of the concrete support bar 19 on cast-in-situ bored pile 2 12 away from cast-in-situ bored pile 2 12 with it is adjacent
Or relative cast-in-situ bored pile 2 12 connects, the globality of cast-in-situ bored pile 1 and cast-in-situ bored pile 2 12 is enhanced.
The foundation pit structure of the present embodiment is adapted to Deep Thick Soft Ground Area protection surrounding building.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (7)
- A kind of 1. foundation pit structure for protecting surrounding building, it is characterised in that：Including foundation ditch（1）, be arranged on foundation ditch（1）It is close to build Build the cast-in-situ bored pile one of thing side（11）And it is circumferentially provided on foundation ditch（1）The cast-in-situ bored pile two of other sides（12）, it is described Foundation ditch（1）Cheat external cast-in-situ bored pile two（12）It is circumferentially with tri-axes deep mixing stake one（13）, the foundation ditch（1）Cheat external adjacent brill Hole pouring pile one（11）Between be provided with and close adjacent cast-in-situ bored pile one（11）Between gap root pile（14）, the foundation ditch （1）In adjacent root pile（14）With cast-in-situ bored pile one（11）Between be provided with sleeve valve barrel grouting（15）.
- 2. the foundation pit structure of protection surrounding building according to claim 1, it is characterised in that：The foundation ditch（1）Hole is outer In adjacent cast-in-situ bored pile two（12）Between be provided with and close adjacent cast-in-situ bored pile two（12）Between gap high-pressure rotary jet grouting pile one （16）.
- 3. the foundation pit structure of protection surrounding building according to claim 1, it is characterised in that：The cast-in-situ bored pile one （11）Diameter be more than cast-in-situ bored pile two（12）Diameter.
- 4. the foundation pit structure of protection surrounding building according to claim 1, it is characterised in that：The foundation ditch（1）In hole In adjacent cast-in-situ bored pile one（11）Between be provided with and close adjacent cast-in-situ bored pile one（11）Between gap high-pressure rotary jet grouting pile two （17）.
- 5. the foundation pit structure of protection surrounding building according to claim 4, it is characterised in that：The high-pressure rotary jet grouting pile two （17）Away from cast-in-situ bored pile one（11）Side be provided with tri-axes deep mixing stake two（18）, the tri-axes deep mixing stake two（18）It is provided with Multilayer.
- 6. the foundation pit structure of protection surrounding building according to claim 5, it is characterised in that：The tri-axes deep mixing stake two （18）Lower end is provided with sub-merged pier（181）.
- 7. the foundation pit structure of protection surrounding building according to claim 1, it is characterised in that：The cast-in-situ bored pile one （11）With cast-in-situ bored pile two（12）On be vertically equipped with some layer concrete support bars（19）, the cast-in-situ bored pile One（11）On concrete support bar（19）Away from cast-in-situ bored pile one（11）One end and adjacent cast-in-situ bored pile two（12） Connection, the cast-in-situ bored pile two（12）On concrete support bar（19）Away from cast-in-situ bored pile two（12）One end with it is adjacent Or relative cast-in-situ bored pile two（12）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720589157.1U CN206736929U (en) | 2017-05-24 | 2017-05-24 | Protect the foundation pit structure of surrounding building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720589157.1U CN206736929U (en) | 2017-05-24 | 2017-05-24 | Protect the foundation pit structure of surrounding building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206736929U true CN206736929U (en) | 2017-12-12 |
Family
ID=60567934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720589157.1U Expired - Fee Related CN206736929U (en) | 2017-05-24 | 2017-05-24 | Protect the foundation pit structure of surrounding building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206736929U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585270A (en) * | 2021-07-08 | 2021-11-02 | 中铁第四勘察设计院集团有限公司 | Foundation pit supporting structure next to high-speed rail operation line and construction method thereof |
| CN115978354A (en) * | 2022-12-30 | 2023-04-18 | 中国电建集团西北勘测设计研究院有限公司 | Active protection device and protection method for preventing underground pipeline from deforming |
| WO2023178967A1 (en) * | 2022-07-25 | 2023-09-28 | 中建三局绿色产业投资有限公司 | Buttress-column-type pile-wall integrated structure system |
-
2017
- 2017-05-24 CN CN201720589157.1U patent/CN206736929U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585270A (en) * | 2021-07-08 | 2021-11-02 | 中铁第四勘察设计院集团有限公司 | Foundation pit supporting structure next to high-speed rail operation line and construction method thereof |
| WO2023178967A1 (en) * | 2022-07-25 | 2023-09-28 | 中建三局绿色产业投资有限公司 | Buttress-column-type pile-wall integrated structure system |
| CN115978354A (en) * | 2022-12-30 | 2023-04-18 | 中国电建集团西北勘测设计研究院有限公司 | Active protection device and protection method for preventing underground pipeline from deforming |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |