CN208844578U - Suspended net shotcrete system between a kind of stake - Google Patents
Suspended net shotcrete system between a kind of stake Download PDFInfo
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- CN208844578U CN208844578U CN201821203863.9U CN201821203863U CN208844578U CN 208844578 U CN208844578 U CN 208844578U CN 201821203863 U CN201821203863 U CN 201821203863U CN 208844578 U CN208844578 U CN 208844578U
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Abstract
Suspended net shotcrete system between a kind of stake is set between cast-in-situ bored pile, rams excessive layer including the element that from-inner-to-outer is set on the outside of inter-pile soil and microlith rams surface layer；The microlith, which rams in surface layer, sets reinforced mesh and lateral lacing wire；It is vertically equipped with linked network component in the cast-in-situ bored pile, microlith is protruded on the outside of the linked network component and is rammed in surface layer；Binding connection respectively between the linked network component, reinforced mesh and lateral lacing wire；Further include tapping pipe, protruded into inter-pile soil on the inside of the tapping pipe, outside is exposed at microlith and rams outside surface layer, realizes system drain function.The utility model structure is simple, design is reasonable, the outlet of water body in soil layer is realized by setting tapping pipe, and setting element between surface layer is rammed in inter-pile soil and microlith and rams excessive layer, on the one hand existing gap between inter-pile soil and surface layer after surface layer injection is avoided, on the other hand provided excessively for the bonding between two layers, make between layers be adhesively fixed it is stronger.
Description
Technical field
The utility model belongs to Base hole supporting technology field, and in particular to suspended net shotcrete system between a kind of stake, for avoiding
Inter-pile soil body is lost.
Background technique
Bored concrete pile is the directly aperture on designed stake position, and steel reinforcement cage concrete perfusion is then placed in hole and is formed
's.In pattern foundation pit supporting structure and underground engineering, bored concrete pile because its construction technology is simple, system easy to control the quality and when construction to surrounding enviroment
Small feature is influenced to be widely used in base pit engineering.Generally there are a fixed gap between adjacent bored concrete pile, gap according to
Force request or construction perpendicularity deviation, the factors such as reaming determine, adjacent bored concrete pile gap is larger or Site soil grittiness compared with
In the case where weight, inter-pile soil body tends to be lost, and especially in the sand soil area base pit engineering of not set water-stop curtain, exists
Biggish foundation pit supporting system security risk.In order to avoid the soil body is lost the peace so that it is guaranteed that foundation pit supporting system between grout pile
Entirely, reliable inter-pile soil body safeguard procedures need to be taken.
Utility model content
The purpose of the utility model is to provide suspended net shotcrete systems between a kind of stake, it is therefore intended that solves between existing bored concrete pile
Inter-pile soil body is easy the problem of being lost and fixed not firm enough the technical problem of existing spraying anchor between piles technology.
To realize the above-mentioned technical purpose, the utility model adopts the following technical solution:
Suspended net shotcrete system between a kind of stake is set between cast-in-situ bored pile, it is characterised in that: is set to stake including from-inner-to-outer
Between the element in soil outside ram excessive layer and microlith rams surface layer；The microlith, which rams in surface layer, sets reinforced mesh and lateral lacing wire；The brill
It is vertically equipped with linked network component in hole pouring pile, microlith is protruded on the outside of the linked network component and is rammed in surface layer；The linked network component, reinforcing bar
Binding connection respectively between mesh sheet and lateral lacing wire；Further include tapping pipe, is protruded into inter-pile soil on the inside of the tapping pipe, outside dew
It is rammed outside surface layer in microlith, realizes system drain function.
As the optimal technical scheme of the utility model, the element rams excessive layer and the thickness of microlith rammer surface layer is
100mm。
Further, it is 42.5 that the microlith, which rams the strength of cement grade of surface layer, and the maximum particle of crushed stone therein is 10mm.
Further, the reinforced mesh is 8@200 of single-layer bidirectional Ф, lateral 16@1500 of lacing wire Ф.
Further, the tapping pipe transversely lacing wire arranged for interval, and with lateral lacing wire binding and fixing.
Further, the linked network component is the linked network reinforcing bar planted in advance or the subsequent expansion bolt squeezed into.
Compared with prior art, the utility model has the technical advantages that:
1, the utility model structure is simple, and design rationally, avoids inter-pile soil body stream by the shotcrete with steel bar nets between grout pile
It loses, the safety of foundation pit supporting system is ensured using the continuous safeguard procedures of inter-pile soil body, the construction is easy for construction, securely and reliably；
2, the outlet of water body in soil layer is realized by setting tapping pipe, and rams in inter-pile soil and microlith and element is set between surface layer
Excessive layer is rammed, existing gap between inter-pile soil and surface layer after surface layer injection is on the one hand avoided, on the other hand between two layers
Bonding provide excessively, make between layers be adhesively fixed it is stronger.
Detailed description of the invention
By made detailed description in conjunction with the following drawings, above-mentioned and/or other aspects and advantage of the utility model will
It becomes more apparent upon and is easier to understand, these attached drawings are only schematical, are not intended to limit the utility model, in which:
Fig. 1 be the utility model relates to stake between suspended net shotcrete system overall structure diagram；
Fig. 2 be the utility model relates to stake between suspended net shotcrete system schematic view of facade structure.
Appended drawing reference: 1- cast-in-situ bored pile, 2- inter-pile soil, 3- element ram excessive layer, 4- microlith rams surface layer, 5- reinforced mesh,
The lacing wire of 6- transverse direction, 7- linked network component, 8- tapping pipe.
Specific embodiment
Hereinafter, the embodiment of suspended net shotcrete system between the stake of the utility model is described with reference to the accompanying drawings.
The embodiment recorded herein is the specific specific embodiment of the utility model, for illustrating the utility model
Design, be it is explanatory and illustrative, should not be construed as the limit to the utility model embodiment and the scope of the utility model
System.In addition to the embodiment recorded herein, those skilled in the art can also be public based on the claim of this application book and specification institute
For the content opened using obvious other technical solutions, these technical solutions include using doing to the embodiment recorded herein
The technical solution of any obvious substitutions and modifications out.The attached drawing of this specification is schematic diagram, and it is practical new to aid in illustrating this
The design of type, it is schematically indicated the shape and its correlation of each section.It note that for the ease of clearly showing this reality
With the structure of each component of new embodiment, do not drawn according to identical ratio between each attached drawing.Identical reference marker is used
In the identical part of expression.
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.Such as Fig. 1 and Fig. 2, suspended net shotcrete system between a kind of stake is set to drilling and fills
It infuses between stake 1, it is characterised in that: ram excessive layer 3 including the element that from-inner-to-outer is set to 2 outside of inter-pile soil and microlith rams surface layer 4；Institute
It states in microlith rammer surface layer 4 and sets reinforced mesh 5 and lateral lacing wire 6；Linked network component 7 is vertically equipped in the cast-in-situ bored pile 1, it is described
Microlith is protruded on the outside of linked network component 7 to ram in surface layer 4；It is bound respectively between the linked network component 7, reinforced mesh 5 and lateral lacing wire 6
Connection；Further include tapping pipe 8, protruded into inter-pile soil 2 on the inside of the tapping pipe 8, outside is exposed at microlith and rams outside surface layer 4, realizes body
It is drain function.
Wherein, the tapping pipe 8 transversely 6 arranged for interval of lacing wire, and with lateral 6 binding and fixing of lacing wire.The linked network structure
Part 7 can be the linked network reinforcing bar or the subsequent expansion bolt squeezed into planted in advance.Concrete construction method is as follows:
Firstly, the slope surface of finishing inter-pile soil 2, using manual cleaning.To ensure to spray the smooth of surface layer, this process must be hung
Line positioning, reserves the 100mm thickness soil body, carries out manually repairing slope, structure construction must not be influenced after the completion of slope retaining.It is carried out in slope surface
Before jetting cement supporting, slope surface loosened soil is removed, it is ensured that the facade of side slope and the flatness of wall surface.Flatness tolerance ±
20mm.Then press design drawing, according to earth excavation sideline and positive and negative zero level, by survey crew release protective layer sideline and
Height control line.
Subsequent construction process are as follows: be laid with element and ram excessive layer 3, embedded jetting cement thickness control mark, injection first layer microlith
It rams surface layer 4, laying expanded metal lath, injection second layer microlith rammer surface layer 4, setting tapping pipe 8 and is used as drainage system.
Reinforced mesh 5 is 8@200 of single-layer bidirectional Ф, lateral 6 Ф of lacing wire, 16@1500, unit mm.Jetting cement construction should meet
" rock soil anchor and concrete spraying support engineering legislation ", stringent slope by drawing when construction, smooth processing completion
After acceptance(check), jet-anchor execution can be carried out.Element rams excessive layer and the equal 100mm of fine-stone concrete surface layer is thick, and fine-stone concrete surface layer 4 is divided
It sprays twice, first time jet thickness 50mm, second of jet thickness 50mm.Jetting cement should use strength grade for C25 microlith
Concrete, proportion are cement: sand: rubble: water=1:2: 2: 0.5, and cement strength grade is 42.5, and the maximum particle of crushed stone is answered
Less than 10mm.Injection pressure is 0.3-0.5Mpa, and spraying operation should be segmented progress, and injection order should be from following in same segmentation
On, after jetting cement final set 2h, wet curing is answered, curing time is no less than 7d.
During earth excavation, according to soil property situation, every depth for excavating 2m or so, Ying Jinhang spraying anchor between piles, Yi Mianfa
The case where raw inter-pile soil falls, hurts sb.'s feelings, while being also convenient for construction personnel and carrying out spray anchor operation.Control is cut the earth when ditch area cuts the earth
Layer is high, prevents mud from washing away inter-pile soil, to avoid safety accident.Sentenced according to shoveling field condition by Party A, management and Zong Bao
It is fixed whether to need to do spraying anchor between piles.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (6)
1. suspended net shotcrete system between a kind of stake is set between cast-in-situ bored pile (1), it is characterised in that: be set to including from-inner-to-outer
Element on the outside of inter-pile soil (2) rams excessive layer (3) and microlith rams surface layer (4)；The microlith rams in surface layer (4) and sets reinforced mesh (5)
With lateral lacing wire (6)；Linked network component (7) vertically are equipped in the cast-in-situ bored pile (1), are protruded on the outside of the linked network component (7)
Microlith rams in surface layer (4)；Binding connection respectively between the linked network component (7), reinforced mesh (5) and lateral lacing wire (6)；Also wrap
It includes tapping pipe (8), is protruded on the inside of the tapping pipe (8) in inter-pile soil (2), outside is exposed at microlith and rams surface layer (4) outside, realizes system
Drain function.
2. suspended net shotcrete system between a kind of stake according to claim 1, it is characterised in that: the element ram excessive layer (3) and
The thickness that microlith rams surface layer (4) is 100mm.
3. suspended net shotcrete system between a kind of stake according to claim 1, it is characterised in that: the microlith rams surface layer (4)
Strength of cement grade is 42.5, and the maximum particle of crushed stone therein is 10mm.
4. suspended net shotcrete system between a kind of stake according to claim 1, it is characterised in that: the reinforced mesh is that single layer is double
To 8@200 of Ф, lateral 16@1500 of lacing wire Ф.
5. suspended net shotcrete system between a kind of stake according to claim 1, it is characterised in that: the tapping pipe (8) is transversely
Lacing wire (6) arranged for interval, and with lateral lacing wire (6) binding and fixing.
6. suspended net shotcrete system between a kind of stake described in any one according to claim 1~5, it is characterised in that: the linked network
Component (7) is the linked network reinforcing bar planted in advance or the subsequent expansion bolt squeezed into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821203863.9U CN208844578U (en) | 2018-07-27 | 2018-07-27 | Suspended net shotcrete system between a kind of stake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821203863.9U CN208844578U (en) | 2018-07-27 | 2018-07-27 | Suspended net shotcrete system between a kind of stake |
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| Publication Number | Publication Date |
|---|---|
| CN208844578U true CN208844578U (en) | 2019-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821203863.9U Active CN208844578U (en) | 2018-07-27 | 2018-07-27 | Suspended net shotcrete system between a kind of stake |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113073656A (en) * | 2021-05-06 | 2021-07-06 | 北京城建勘测设计研究院有限责任公司 | Inter-pile soil protection structure of support pile and construction method thereof |
-
2018
- 2018-07-27 CN CN201821203863.9U patent/CN208844578U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113073656A (en) * | 2021-05-06 | 2021-07-06 | 北京城建勘测设计研究院有限责任公司 | Inter-pile soil protection structure of support pile and construction method thereof |
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