CN207436069U - A kind of deep foundation pit supporting structure - Google Patents
A kind of deep foundation pit supporting structure Download PDFInfo
- Publication number
- CN207436069U CN207436069U CN201721458965.0U CN201721458965U CN207436069U CN 207436069 U CN207436069 U CN 207436069U CN 201721458965 U CN201721458965 U CN 201721458965U CN 207436069 U CN207436069 U CN 207436069U
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- China
- Prior art keywords
- foundation pit
- bolt body
- anchor pole
- strut
- supporting structure
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Abstract
The utility model discloses a kind of deep foundation pit supporting structures, including foundation pit and the anchoring wall being arranged in excavation slope, several anchor poles are equipped in the foundation pit, one end that the anchor pole oblique cutting enters excavation slope is anchored on anchoring wall, the anchor pole includes bolt body, in the bolt body releasable connection have anchor pole casing, the bolt body is hollow pipe, the side wall of the bolt body is equipped with strut several circumferentially distributed and in anchor pole casing, and the strut is fixedly connected with bolt body.By bolt body and the support action of strut, make foundation pit soil layer more firm, solve the problems, such as that conventional anchor supporting foundation pit is unstable.
Description
Technical field
The utility model is related to Base hole supporting technology fields, and in particular to a kind of deep foundation pit supporting structure.
Background technology
With urban construction and the development and utilization of the continuous development of infrastructure, on a large scale down space.It is building
In work progress, in order to ensure the safety of the construction of underground structure and surrounding deep foundation pit environment, it is necessary to deep-foundation side wall and week
Surrounding environment takes supporting and the measure reinforced.
Such as the Chinese patent that Authorization Notice No. is CN201406687Y, a kind of deep foundation pit supporting structure is which disclose,
The braced wall to be formed is arranged in juxtaposition including more mini piles, anchor cable and fixed body, anchor cable are provided on the inside of the supporting of braced wall
One end be connected on mini pile, the other end is connected on fixed body.
When conventional anchor carries out supporting to foundation pit, since weak soil physico-mechanical properties is poor, fixed body is to the branch mask of the soil body
Product it is smaller, cause be arranged on soil layer in fixed body anti-pulling capacity it is relatively low, deformation it is larger, influence the supporting stability of foundation pit.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of deep foundation pit supporting structure, solutions
The problem of conventional anchor of having determined supporting foundation pit is unstable.
To achieve the above object, the utility model provides following technical solution：
A kind of deep foundation pit supporting structure including foundation pit and the anchoring wall being arranged in excavation slope, is equipped in the foundation pit
Several anchor poles, one end that the anchor pole oblique cutting enters excavation slope are anchored on anchoring wall, and the anchor pole includes bolt body, described
Releasable connection has anchor pole casing in bolt body, and the bolt body is hollow pipe, if the side wall of the bolt body is equipped with
Strut dry circumferentially distributed and in anchor pole casing, the strut are fixedly connected with bolt body.
By using above-mentioned technical proposal, anchor pole is inserted between anchoring wall and foundation pit, along bolt body length direction
Anchor pole casing is taken out, foundation pit soil layer under gravity, is contacted with the strut on bolt body side wall, and strut is embedded in soil layer
In, bolt body and the contact area of soil layer are increased, makes being installed in foundation pit for bolt body stabilization, enhances bolt body
To the supporting effect of foundation pit soil layer.
The utility model is further arranged to：The bolt body is fixedly connected with anchor on one end away from excavation slope
Bar tip, the tapered setting in anchor pole tip.
By using above-mentioned technical proposal, when promotion anchor pole enters foundation pit, anchor pole and foundation pit soil layer are reduced in anchor pole tip
Contact area facilitates in anchor pole insertion foundation pit.
The utility model is further arranged to：The bolt body is fixed on one end side wall at anchor pole tip
Spacing ring is provided with annular groove in the spacing ring, and the anchor pole casing threads is connected to annular groove.
By using above-mentioned technical proposal, anchor pole casing and bolt body plug connection, after anchor pole is inserted into foundation pit, along anchor
Bar body length direction rotates anchor pole casing, and anchor pole casing is made to be skidded off out of annular groove, facilitates and takes out anchor pole casing.
The utility model is further arranged to：Cement mortar is perfused in the bolt body.
By using above-mentioned technical proposal, rotate and take out anchor pole casing, be perfused with cement mortar to bolt body, add anchor
The gravity of bar body makes the supporting foundation pit that bolt body is more stable.
The utility model is further arranged to：Several first slurry holes are provided on the side wall of the bolt body.
By using above-mentioned technical proposal, into bolt body after grout injection, a part of cement mortar is along anchor pole sheet
The first slurry hole on body sidewall is flowed into the soil layer near bolt body, and bolt body is made preferably to be fixed in foundation pit soil layer.
The utility model is further arranged to：The strut is the hollow pipe of one end closing, on the side wall of the strut
Offer several second slurry holes.
By using above-mentioned technical proposal, into bolt body after grout injection, a part of cement mortar is along on strut
The second slurry hole flow into the soil layer near strut, after cement slurry sets, make the soil layer adhesion near strut and strut, and then make
Strut is preferably fixed in foundation pit soil layer.
The utility model is further arranged to：It is described first slurry the tapered setting in hole, it is described first slurry hole aperture by
Interior to outer gradual increase.
By using above-mentioned technical proposal, in bolt body after grout injection, a part of cement mortar flows through the first slurry hole,
Since the aperture in the first slurry hole gradually increases from the inside to the outside, the speed that cement mortar is flowed out out of first slurry hole can be increased, facilitate water
Mud is flowed out out of first slurry hole.
The utility model is further arranged to：The anchor pole tip is equipped with external screw thread.
By using above-mentioned technical proposal, the external screw thread on anchor pole tip can increase rubbing between anchor pole tip and anchoring wall
Power is wiped, anchor pole tip is made to be connected with anchoring wall more firm.
In conclusion the utility model has the advantages that：
1st, by the strut in bolt body, increase bolt body and the contact area of foundation pit, make bolt body better
Supporting is carried out to foundation pit；
2nd, by grout injection, the gravity of bolt body is added, makes being inserted in foundation pit for bolt body stabilization.
Description of the drawings
Fig. 1 is the overall structure diagram of the present embodiment；
Fig. 2 is the structure diagram of anchor pole in the present embodiment；
Fig. 3 is the structure diagram that bolt body is connected with strut in the present embodiment；
Fig. 4 is enlarged drawing at the A of Fig. 1.
Reference numeral：1st, foundation pit；2nd, wall is anchored；3rd, anchor pole；31st, bolt body；311st, the first slurry hole；32nd, anchor pole tip；
4th, strut；41st, the second slurry hole；5th, spacing ring；51st, annular groove；6th, anchor pole casing；7th, bar-mat reinforcement.
Specific embodiment
The utility model is described further referring to the drawings.
A kind of deep foundation pit supporting structure, as shown in Figure 1, including foundation pit 1, the side slope of foundation pit 1 is interior to be equipped with anchoring wall 2, foundation pit 1
Side slope in be equipped with several anchor poles 3 for supporting foundation pit 1, anchor pole 3 be inserted into 1 side slope of foundation pit one end be anchored in anchors wall 2 on.
The cement-soil pile of cement production systD of the mixing containing 10%-20% weight in soil can be used in anchoring wall 2.
As shown in Figure 1 and Figure 4, anchor pole 3 includes the anchor pole tip 32 being anchored on anchoring wall 2, being provided on anchor pole tip 32
External screw thread is welded with bolt body 31 on anchor pole tip 32, and bolt body 31 is hollow pipe, is opened up on the side wall of bolt body 31
There are several the first circumferentially distributed slurry holes 311.By the grout injection in bolt body 31, a part of cement mortar is by the
One slurry hole 311 is flowed into neighbouring soil layer, is preferably fixed on bolt body 31 in the soil layer of foundation pit 1.
As shown in figure 4, in order to preferably make cement mortar outflow out of first slurry hole 311, hole 311 is tapered sets for the first slurry
It puts, the aperture in the first slurry hole 311 gradually increases from the inside to the outside.
As shown in Figure 1 and Figure 4, several struts 4 communicated with bolt body 31 are welded on the side wall of bolt body 31, are propped up
Bar 4 is the hollow pipe of one end closing, and several the second circumferentially distributed slurry holes 41 are provided on the side wall of strut 4.By in anchor pole
Grout injection in body 31, a part of cement mortar are flowed into along the second slurry hole 41 in neighbouring soil layer, make strut 4 and strut 4
Position of the strut 4 in 1 soil layer of foundation pit is preferably fixed in neighbouring soil layer adhesion；Strut 4 increases bolt body 31 and base simultaneously
The contact area of 1 soil layer is cheated, the position of bolt body 31 is made more to stablize, better supporting is carried out to 1 soil layer of foundation pit.
As shown in Figure 1 and Figure 4, in order to which preferably the strut 4 on 31 side wall of bolt body is inserted in 1 soil layer of foundation pit,
Bolt body 31 welds restraining position ring block 5 on the one end at anchor pole tip 32, and annular groove 51, annular groove 51 are provided on spacing ring 5
Internal thread is connected with anchor pole casing 6, and strut 4 is located in anchor pole casing 6.After anchor pole 3 is inserted into the soil layer of foundation pit 1, by rotating anchor
Rod bush 6, anchor pole casing 6 are skidded off out of annular groove 51, sliding from the soil layer of foundation pit 1 along the length direction of bolt body 31
Go out, contact strut 4 and the soil layer of foundation pit 1, facilitate and be inserted into strut 4 in the soil layer of foundation pit 1.
As shown in Figure 1, the side slope of foundation pit 1 is fixed with bar-mat reinforcement 7, bolt body 31 is welded to connect with bar-mat reinforcement 7.
Operation principle：Anchor pole 3 is inserted between anchoring wall 2 and foundation pit 1, rotates anchor pole casing 6, make anchor pole casing 6 from
Foundation pit 1 is skidded off in annular groove 51, the grout injection into bolt body 31, cement mortar starches hole by the first slurry hole 311 and second
41 flow into the soil layer of foundation pit 1, make bolt body 31 and strut 4 and neighbouring soil layer adhesion, make bolt body 31 preferably to base
Hole 1 carries out supporting.
The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical solutions belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, several improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (8)
1. a kind of deep foundation pit supporting structure, including foundation pit（1）Be arranged at foundation pit（1）Anchoring wall in side slope（2）, the foundation pit
（1）It is interior to be equipped with several anchor poles（3）, the anchor pole（3）Oblique cutting enters foundation pit（1）One end of side slope is anchored in anchoring wall（2）On, it is special
Sign is：The anchor pole（3）Including bolt body（31）, the bolt body（31）Upper releasable connection has anchor pole casing（6）, it is described
Bolt body（31）For hollow pipe, the bolt body（31）Side wall be equipped with it is several circumferentially distributed and positioned at anchor pole casing
（6）Interior strut（4）, the strut（4）With bolt body（31）It is fixedly connected.
2. a kind of deep foundation pit supporting structure according to claim 1, it is characterized in that：The bolt body（31）Away from foundation pit
（1）Anchor pole tip is fixedly connected on one end of side slope（32）, the anchor pole tip（32）Tapered setting.
3. a kind of deep foundation pit supporting structure according to claim 2, it is characterized in that：The bolt body（31）Close to anchor pole
Tip（32）One end side wall on be fixed with spacing ring（5）, the spacing ring（5）Inside it is provided with annular groove（51）, the anchor pole
Casing（6）It is threadedly connected to annular groove（51）.
4. a kind of deep foundation pit supporting structure according to claim 1, it is characterized in that：The bolt body（31）Inside it is perfused with
Cement mortar.
5. a kind of deep foundation pit supporting structure according to claim 4, it is characterized in that：The bolt body（31）Side wall on
It is provided with several first slurry holes（311）.
6. a kind of deep foundation pit supporting structure according to claim 4, it is characterized in that：The strut（4）For one end closing
Hollow pipe, the strut（4）Side wall on offer it is several second slurry holes（41）.
7. a kind of deep foundation pit supporting structure according to claim 5, it is characterized in that：The first slurry hole（311）It is tapered
It sets, the first slurry hole（311）Aperture gradually increase from the inside to the outside.
8. a kind of deep foundation pit supporting structure according to claim 2, it is characterized in that：The anchor pole tip（32）It is equipped with outer
Screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721458965.0U CN207436069U (en) | 2017-11-04 | 2017-11-04 | A kind of deep foundation pit supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721458965.0U CN207436069U (en) | 2017-11-04 | 2017-11-04 | A kind of deep foundation pit supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207436069U true CN207436069U (en) | 2018-06-01 |
Family
ID=62291033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721458965.0U Expired - Fee Related CN207436069U (en) | 2017-11-04 | 2017-11-04 | A kind of deep foundation pit supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207436069U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843355A (en) * | 2018-06-22 | 2018-11-20 | 贵州大学 | A kind of mechanical anchoring device |
| CN108894233A (en) * | 2018-06-28 | 2018-11-27 | 深圳市必发达科技有限公司 | A kind of suspension roof support structure of foundation pit band anchoring wall |
| CN109209458A (en) * | 2018-10-31 | 2019-01-15 | 北京交通大学 | A kind of increasing resistance pressurization anchor pole |
| CN112854792A (en) * | 2019-11-28 | 2021-05-28 | 北京京诚华宇建筑设计研究院有限公司 | Double-layer wall connecting anchor rod, hollow double-layer wall structure and reinforcing construction method |
-
2017
- 2017-11-04 CN CN201721458965.0U patent/CN207436069U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843355A (en) * | 2018-06-22 | 2018-11-20 | 贵州大学 | A kind of mechanical anchoring device |
| CN108894233A (en) * | 2018-06-28 | 2018-11-27 | 深圳市必发达科技有限公司 | A kind of suspension roof support structure of foundation pit band anchoring wall |
| CN109209458A (en) * | 2018-10-31 | 2019-01-15 | 北京交通大学 | A kind of increasing resistance pressurization anchor pole |
| CN112854792A (en) * | 2019-11-28 | 2021-05-28 | 北京京诚华宇建筑设计研究院有限公司 | Double-layer wall connecting anchor rod, hollow double-layer wall structure and reinforcing construction method |
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| 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: 20180601 Termination date: 20211104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |