CN207130744U - A kind of megalith mixture landslide micro combination pile group buttress ruggedized construction - Google Patents
A kind of megalith mixture landslide micro combination pile group buttress ruggedized construction Download PDFInfo
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- CN207130744U CN207130744U CN201720962194.2U CN201720962194U CN207130744U CN 207130744 U CN207130744 U CN 207130744U CN 201720962194 U CN201720962194 U CN 201720962194U CN 207130744 U CN207130744 U CN 207130744U
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- megalith
- megalith mixture
- mixture
- buttress
- landslide
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a kind of megalith mixture landslide micro combination pile group buttress ruggedized construction, including megalith mixture, and the mini pile more than the row in megalith mixture, slip casting is provided with gap between mini pile and megalith mixture, mini pile and megalith mixture within the specific limits forms an entirety, i.e. micro combination pile group buttress；The leading edge on the megalith mixture landslide is provided with shotcrete with steel bar nets；Thrust of Landslide is resisted using the shearing resistance of micro combination pile group buttress；Prevent the megalith mixture on leading edge top layer from deforming movement.
Description
Technical field
It the utility model is related to a kind of megalith mixture landslide micro combination pile group buttress ruggedized construction.
Background technology
Megalith mixture refers to the accumulation body being made up of larger-size block of stone.Due to megalith mixture by megalith accumulate and
Into, space between megalith be present, cause conventional preventing land slide method construction when larger difficulty be present, as in preventing land slide often
When manually digging hole friction pile is applied to megalith mixture landslide control, it is big excavation supporting difficulty to be present, big to landslide disturbance
The shortcomings that.Therefore, a kind of Prevention Technique for being relatively applied to megalith mixture landslide need to be explored.Megalith in megalith mixture landslide
Between inlay mutually, be engaged, cause the shearing strength of megalith mixture itself higher, there is certain self-stability, therefore megalith
Mixture comes down when whole slide occurs, and is generally slided along the contact surface of megalith mixture and basement rock, and anterior block stone
Cause the block stone at its rear portion to have the space of amoeboid movement after deformation, the deformation of rear block stone can be induced.Therefore, to this kind of cunning
When slope is prevented and treated, it should be noted that it is following some：First, preferably use the prevention and controls of non-excavating construction；Second, emphasis is to Ji Fumianchu
Gliding mass reinforced；Third, the megalith at leading edge position is prevented to be locally deformed with.At present in preventing land slide, friction pile is most
Conventional Anti-sliding stopping structure.During anti-slide pile design, calculated friction pile as bending resistance component, determine its cross section chi
Very little, arrangement of reinforcement etc., and carry out anti-shear check.Generally use manually digging hole-making steel reinforcement cage-concrete perfusion during construction
Mode is carried out.It has the following disadvantages：(1) accumulated and formed by megalith due to megalith mixture, manually digging hole pore-forming difficulty is big, work
Phase is grown；(2) there is larger potential safety hazard in underground construction in workmen；(3) according to blast working during pore-forming, to gliding mass
Disturb larger；(4) pore-forming size is larger, easily reduces Landslide Stability during pore-forming, promotes landslide to slide.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of megalith mixture landslide micro combination pile group buttress and added
Fixing structure, more mini piles are squeezed into megalith mixture, be total to mini pile and megalith mixture using the construction method of slip casting
With the buttress formed near base clad can, Thrust of Landslide is resisted using the shearing resistance of micro combination pile group buttress；Mixed in megalith
The leading edge on body landslide carries out shotcrete with steel bar nets, prevents the megalith mixture on leading edge top layer from deforming movement.
To solve the above problems, the utility model adopts the following technical scheme that：
A kind of megalith mixture landslide micro combination pile group buttress ruggedized construction, including megalith mixture, and positioned at megalith
A mini pile more than row in mixture, slip casting is provided with the gap between mini pile and megalith mixture, in certain model
Mini pile and megalith mixture in enclosing form an entirety, i.e. micro combination pile group buttress；The megalith mixture landslide
Leading edge is provided with shotcrete with steel bar nets.
Preferably, the block stone of the megalith mixture is mutually inlayed, is engaged.
Preferably, set osculum in shotcrete with steel bar nets, the osculum of row is most descended close to bedrock surface.
Preferably, shotcrete with steel bar nets can be substituted with active protecting net, osculum need not be now set.
The beneficial effects of the utility model are：(1) megalith mixture landslide is added using micro combination pile group buttress
Gu giving full play to the antiskid performance of megalith mixture itself, construction costs is reduced；(2) rig pore-forming is used when constructing, to gliding mass
Disturb small, easy for construction, degree of safety height；(3) speed of application is fast, can quick on-slip.
Brief description of the drawings
Fig. 1 is that the utility model micro combination pile group buttress reinforces megalith mixture landslide profile；
Fig. 2 is that the utility model micro combination pile group buttress reinforces megalith mixture landslide plan.
In figure mark for：1- mini piles, 2- buttresses, 3- shotcrete with steel bar nets, 4- osculums, 5- megalith mixtures.
Embodiment
As depicted in figs. 1 and 2, a kind of megalith mixture landslide micro combination pile group buttress ruggedized construction, is mixed in megalith
Multiple rows of mini pile 1 is squeezed into body 5, mini pile 1 is the small-bore bored concrete pile constructed using drilling, strong arrangement of reinforcement, grouting process, due to
Using the construction method of slip casting during construction, the hole between block stone in megalith mixture 5 can be filled, be made a range of
Mini pile 1 and megalith mixture 5 form an entirety, i.e. micro combination pile group buttress 2, play a part of reinforcing landslide.Due to
The block stone of megalith mixture 5 is mutually inlayed, is engaged, and shear resistance is stronger, therefore does not consider that the inside of megalith mixture 5 produces sliding surface
Possibility, only certain thickness gliding mass near base clad can is reinforced, i.e., micro combination pile group buttress do not have to extend to
Earth's surface, reinforcing bar and concrete material are so greatlyd save, reduce cost.Meanwhile enter in the leading edge that megalith mixture 5 comes down
Row shotcrete with steel bar nets 3, prevent the block stone on leading edge top layer from deforming movement.
The utility model micro combination pile group buttress reinforces the design principle on megalith mixture landslide：
Thrust of Landslide is resisted by the shearing resistance of buttress.The shearing resistance of buttress is made up of two parts, first, buttress and bedrock surface
Shearing resistance, first, the shearing resistance of mini pile.
Utilize τ=τsAsCalculate the shearing resistance of micro combination pile group in single buttress；Wherein, τ is miniature group in single buttress
Close the shearing resistance of pile group；τsFor the shearing strength of the longitudinal reinforcement of mini pile in single buttress；AsFor micro combination in single buttress
The cross-sectional area of all longitudinal reinforcements of pile group.
UtilizeCalculate the shearing resistance between single buttress and bedrock surface；Wherein, τ ' is single buttress
Shearing resistance between bedrock surface；G is the weight of single buttress and its top megalith mixture 5；AcFor the cross section of single buttress
Product；Angle of friction between buttress and bedrock surface.
Need to meet
In formula, K is design safety factor (DSF)；T is setting buttress position per linear meter(lin.m.) residual pushing force；D is buttress center spacing.
Buttress highly can be taken as the 1/3 of thickness of sliding body, i.e. arrangement of reinforcement length of the mini pile more than sliding surface is thickness of sliding body
1/3.Mini pile can be calculated in the building-in depth of the following fixed section of sliding surface by following formula：Wherein, L1To be micro-
Type stake build-in segment length；τ is the shearing resistance of micro combination pile group in single buttress；N is the quantity of mini pile in single buttress；d
For the stake footpath of mini pile；qtFor the adhesion strength of mini pile pile concrete and its all Rock And Soil.
To prevent the block stone on leading edge top layer from deforming, the leading edge on megalith mixture landslide carries out arranging for shotcrete with steel bar nets 3
Apply.The design and construction of specific shotcrete with steel bar nets 3 can be determined that the utility model does not limit the tool of shotcrete with steel bar nets 3 by relevant regulations
Body implementation.Simultaneously to make the water in slip mass discharge in time, osculum 4 is set in shotcrete with steel bar nets body, most descends the row of row
Water hole 4 can preferably join close to bedrock surface (sliding surface), the quantity and aperture size of specific osculum according to the size of local rainfall
Determined according to relevant regulations.
Implementation steps of the present utility model are：
A, determined to set the position of micro combination pile group buttress according to landslide actual conditions and execution conditions；Micro combination stake
The combining form of group's layout area and miniature pile group；
B, the size and spacing of buttress are determined；
C, Thrust of Landslide and gliding mass drag are calculated, it is determined that setting the residual pushing force of buttress position；
D, the skid resistance of buttress is calculated, determines the skid resistance that mini pile should bear；
E, the area of reinforcement of mini pile in single buttress is calculated, determines the quantity of mini pile in single buttress, stake footpath and group
Conjunction form；
F, the anchorage depth of mini pile is calculated；
G, rig pore-forming, steel reinforcement cage, slip casting are hung；
H, stake holes is backfilled.
I, shotcrete with steel bar nets and osculum construction are carried out.
Using micro combination pile group is set in megalith mixture, slurry when passing through slip casting fills the sky of megalith mixture
Gap, so as to form micro combination pile group buttress, the antiskid performance of megalith mixture itself is given full play to, reduce construction costs, and
Quick on-slip can be realized；
By the measure for the leading edge progress shotcrete with steel bar nets that come down in megalith mixture, it is huge to prevent that the deformation of localized mass stone from inducing rear portion
The a wide range of unstability of rock mixture, and take into account drainage measure.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any change or replacement expected without creative work, should all cover within the scope of protection of the utility model.
Claims (3)
- The micro combination pile group buttress ruggedized construction 1. a kind of megalith mixture comes down, it is characterised in that：Including megalith mixture, and Mini pile more than the row in megalith mixture, slip casting is provided with the gap between mini pile and megalith mixture, Mini pile and megalith mixture within the specific limits forms an entirety, i.e. micro combination pile group buttress；The megalith mixing The leading edge on body landslide is provided with shotcrete with steel bar nets.
- The micro combination pile group buttress ruggedized construction 2. megalith mixture as claimed in claim 1 comes down, it is characterised in that：It is described The block stone of megalith mixture is mutually inlayed, is engaged.
- The micro combination pile group buttress ruggedized construction 3. megalith mixture as claimed in claim 2 comes down, it is characterised in that：Hang Osculum is set in net whitewashing, most descends the osculum of row close to bedrock surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720962194.2U CN207130744U (en) | 2017-08-02 | 2017-08-02 | A kind of megalith mixture landslide micro combination pile group buttress ruggedized construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720962194.2U CN207130744U (en) | 2017-08-02 | 2017-08-02 | A kind of megalith mixture landslide micro combination pile group buttress ruggedized construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207130744U true CN207130744U (en) | 2018-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720962194.2U Active CN207130744U (en) | 2017-08-02 | 2017-08-02 | A kind of megalith mixture landslide micro combination pile group buttress ruggedized construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207130744U (en) |
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2017
- 2017-08-02 CN CN201720962194.2U patent/CN207130744U/en active Active
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