CN209555940U - A kind of miniature piled anchor prop structure of ladder - Google Patents
A kind of miniature piled anchor prop structure of ladder Download PDFInfo
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- CN209555940U CN209555940U CN201920050178.5U CN201920050178U CN209555940U CN 209555940 U CN209555940 U CN 209555940U CN 201920050178 U CN201920050178 U CN 201920050178U CN 209555940 U CN209555940 U CN 209555940U
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- foundation pit
- mini pile
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- coupling beam
- pile
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Abstract
The utility model relates to a kind of miniature piled anchor prop structures of ladder, are injected into the anchor pole in foundation pit side-wall including foundation pit, the hole being evenly arranged in foundation pit side-wall, the mini pile for being located at hole, the coupling beam for being located at mini pile upper end and inclination.Mini pile is vertically arranged, and coupling beam sequence is connect with each mini pile, and the higher one end of anchor pole is connected in coupling beam.The interplanar spacing of adjacent mini pile is 1.5-2.0 times of stake diameter.The quantity of foundation pit is two or more, and the length and width of next foundation pit is respectively less than the length and width of a foundation pit.The lower end of mini pile on a upper foundation pit side-wall is inserted into the lower section of the adjacent coupling beam on next foundation pit side-wall.The utility model has construction volume small, the small and stronger technical effect of the destructiveness to soil.
Description
Technical field
The utility model relates to the technical fields of foundation ditch strengthening, more particularly, to a kind of miniature piled anchor prop knot of ladder
Structure.
Background technique
With the continuous development of building trade, huge variation is also had occurred in construction environment, and especially having previously been thought that can not
The place of construction, such as soil property are soft, and easily collapsing equal soil layers and layer of sand etc. can also build above and build into after crossing processing
It builds.
Foundation pit is the basis of building, should be determined according to geology hydrological data in conjunction with live nearby buildings situation before excavation
Excavation plan, and perform water-proof drainage work.The available method for putting side slope of not deep person is excavated, Stability of Earth Slopes, gradient size are made
It provides to determine by related construction.The relatively deep and neighbouring person that has building is excavated, foundation pit walls method for protecting support, gunite concrete retaining wall can be used
Method, Large Foundation Pit even use diaphram wall and colonnade formula cast-in-situ bored pile the methods of chain, protection outside soil layer collapse into；
No influencer is nearby built, well-point method lowering of watertable can be used, using slope open cut；It can be used in cold district natural cold
Gas freezing process excavation etc..With increasing rapidly for architectural volume and weight, the requirement to foundation pit is also higher and higher.
Loose bottom is a kind of geological stratification frequently encountered in Excavation Process, mainly by soil property, sand, gravel, cobble
The equal not yet consolidation and sclerosis diagenesis of layer and the evacuation deposit composition formed.It constructs on loose bottom, mainly there is soil nail wall
Slope protection and heavy caliber pile-anchor retaining two ways.Soil nail wall slope protection is to carry out beating soil nailing after digging out the soil body, does veil and spray
Concrete topping carries out supporting.Medium coarse sand during this easily caves in, and often results in accident, and layer of sand is very thick, and foundation pit is very
It is easier to cave in when deep, forms accident.The cost of heavy caliber pile-anchor retaining is very high, furthermore in pore forming process, collapse hole is serious, and pore-forming is tired
It is difficult.Secondly, after the construction of slope protection piled anchor, the layer of sand of two centres slips sand seriously, often results in inter-pile soil and all slip sky, piled anchor body
Impetus is lost, is caused the accident.
Utility model content
The purpose of the utility model is to provide a kind of miniature piled anchors of ladder that the foundation pit reduced on loose bottom collapses
Prop structure.
The above-mentioned purpose of the utility model has the technical scheme that
A kind of miniature piled anchor prop structure of ladder, including foundation pit；Further include the hole being evenly arranged in foundation pit side-wall, be located at hole
Mini pile, be located at mini pile upper end coupling beam and inclination be injected into anchor pole in foundation pit side-wall；
The mini pile is vertically arranged；
The coupling beam sequence is connect with each mini pile；
Described higher one end of anchor pole is connected in coupling beam.
By using above-mentioned technical proposal, the utility model digs foundation pit after squeezing into mini pile in ground again, passes through ladder
The lower excavation formula of formula builds foundation pit, and digging depth is small under single, can reduce the probability for collapsing generation.The aperture that mini pile needs
It is small, be easy to pore-forming with small-sized machine, small-bore stub, do not needed in scall special measure can rapid construction, no
But material can be saved, additionally it is possible to foundation pit cost be greatly lowered.Multiple mini piles can be connected into an entirety by coupling beam,
Local pressure can be distributed it on remaining mini pile when excessive by coupling beam, and mini pile is disconnected after avoiding local pressure excessive
Split caused landslide.The present invention also injects anchor cable in loose bottom, when applying one with caving in coupling beam and micro-column
Sandy soil flow to opposite pulling force, can play barrier effect, avoid the generation of landslide.
The utility model is further arranged to: the interplanar spacing of the adjacent mini pile is 1.5-2.0 times of stake diameter.
By using above-mentioned technical proposal, the utility model gives the optimum diameter range of mini pile, is less than the range
Then the bending resistance of mini pile is inadequate, cannot achieve the effect for reinforcing loose bottom；Diameter be greater than the range then construction cost and
Difficulty can rise.The diameter range had both taken into account cost and has in turn ensured construction safety.
The utility model is further arranged to: the quantity of the foundation pit is two or more；
The foundation pit is sequentially arranged from top to bottom.
By using above-mentioned technical proposal, the utility model gives the quantity of foundation pit, combines to be formed by multiple foundation pits
Last actual use foundation pit.It is small that depth is dug in this way during lower digging, under single, can be effectively reduced the general of generation of caving in
Rate.
The utility model is further arranged to: the length and width of next foundation pit is respectively less than the foundation pit
Length and width.
By using above-mentioned technical proposal, the foundation pit of the utility model uses stepped construction, can be to mini pile
It squeezes into and reserves installation space, can either guarantee mini pile can be exposed after foundation pit is dug out, and can be avoided mini pile quilt
It digs disconnected.
The utility model is further arranged to: the injection angle of the anchor pole is 5 ° -25 °.
By using above-mentioned technical proposal, the utility model gives the range that anchor cable injects angle.Anchor pole incident angle <
When less than 5 degree, the bad construction of bolt grouting construction, slurries are not easily accessible to anchor pole bottom；When anchor pole incident angle > 25 degree, anchor
The horizontal force that bar provides is smaller, and anchor pole is caused to waste.The framework of the present definition has not only taken into account the complexity of construction, but also
Anchor pole can be made to be capable of providing enough pulling force.
The utility model is further arranged to: the diameter of the mini pile is 200-300mm.
By using above-mentioned technical proposal, the utility model gives the optimum diameter range of mini pile, is less than the range
Then the bending resistance of mini pile is inadequate, cannot achieve the effect for reinforcing loose bottom；Diameter be greater than the range then construction cost and
Difficulty can rise.The diameter range had both taken into account cost and has in turn ensured construction safety.
The utility model is further arranged to: the lower end of the mini pile on a upper foundation pit side-wall is inserted into next
The lower section of adjacent coupling beam on the foundation pit side-wall.
By using above-mentioned technical proposal, the mini pile on a upper foundation pit side-wall, which is inserted on next foundation pit side-wall, to be connected
The lower section of beam can make mini pile, coupling beam and anchor cable in multiple foundation pits be linked to be an entirety in this way, when some mini pile stress
When excessive, the mini pile of surrounding can be passed to by coupling beam and is transmitted on Adjacent Pit by the coupling beam of two end in contact therewith
Mini pile on, can be effectively reduced the pressure that the mini pile receives, the landslide for avoiding its stress from crossing major rupture and be likely to occur
Accident.
The utility model is further arranged to: the total depth of the foundation pit is less than or equal to 12 meters.
By using above-mentioned technical proposal, the utility model defines the total depth of foundation pit, can be avoided the micro- of the bottom
Type stake is broken, and guarantees construction safety.
The utility model is further arranged to: the mini pile on Adjacent Pit side wall is staggered.
By using above-mentioned technical proposal, the mini pile being staggered is capable of forming one and is similar to netted structure, will
The side wall support of foundation pit is got up.The distribution of mini pile is more uniform under this kind of structure, and energy supporting effect is more preferable.
The utility model is further arranged to: the mini pile is reinforced concrete pile or Section-steel Piles.
By using above-mentioned technical proposal, the utility model provides two kinds of materials of mini pile, reinforced concrete pile production letter
Just, intensity is high, stiffness is big, can be made into various cross sectional shapes；The penetration capability of Section-steel Piles is stronger, to stratum generate disturbance more
Slightly, it can effectively avoid piling work and cause the ground bad phenomenon such as laterally to squeeze and swell.
In conclusion the advantageous effects of the utility model are as follows:
1. the utility model uses stepped construction method on loose bottom, the excavation of foundation pit is divided into multiple ranks
Duan Jinhang reinforces its side wall in each stage, and foundation depth is too deep when effectively single can be avoided to excavate is easy
The cave in accident of appearance.When being reinforced to foundation pit side-wall, by squeezing into multiple mini piles, mini pile coupling beam is connected
It is used together the mode that anchor cable applies pulling force to coupling beam, the intensity of foundation pit side-wall is improved, avoids caving in.The diameter of mini pile is small, right
Surrounding extent of the destruction is smaller, can reduce and slips husky phenomenon between adjacent pile body, to reduce the probability that landslide occurs.Even
Multiple mini piles can be connected into an entirety by beam, and it is micro- to distribute it to remaining by coupling beam when local pressure is excessive
In type stake, landslide caused by mini pile fracture after avoiding local pressure excessive.The present invention also injects anchor cable in loose bottom, right
Coupling beam and micro-column apply one and flow to opposite pulling force with sandy soil when caving in, and can play barrier effect, avoid
The generation of landslide.
2. squeeze into mini pile in loose bottom, the mini pile on a upper foundation pit side-wall is inserted into next foundation pit side
The lower section of coupling beam on wall can make mini pile, coupling beam and anchor cable in multiple foundation pits be linked to be an entirety in this way, when some is miniature
When stake stress is excessive, the mini pile of surrounding can be passed to by coupling beam and is transmitted to by the coupling beam of two end in contact therewith adjacent
On mini pile on foundation pit, it can be effectively reduced the pressure that the mini pile receives, its stress avoided to cross major rupture and be likely to occur
Cave in accident.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the utility model.
Fig. 2 is the punching schematic diagram of the utility model.
In figure, 11, foundation pit；12, hole；13, mini pile；14, coupling beam；15, anchor pole.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Referring to Figures 1 and 2, be a kind of miniature piled anchor prop structure of ladder disclosed by the utility model, including on to
Multiple foundation pits 11 that lower sequence is dug out, total foundation depth that multiple foundation pits 11 form is at 12 meters, because the depth when total foundation pit is super
When crossing 12 meters, the bending resistance of mini pile is not reached requirement, and is easy to happen landslide.
It is provided with hole 12 on the side wall of foundation pit 11, mini pile 13 is installed in hole 12.Adjacent mini pile 13 in same foundation pit 11
Between horizontal space be 1.5-2.0 times of stake diameter, i.e., when stake diameter is 300mm, the horizontal distance between adjacent mini pile is answered
When in 450-600mm.Spacing in this way between stake and stake is small, after later period simple process, it is ensured that the loose bottom between stake is not
Husky phenomenon is slipped in appearance.
Mini pile 13 on same foundation pit side-wall is connected with coupling beam 14.Coupling beam 14 is located at the top of mini pile 13, mini pile
13 are welded on the bottom surface of coupling beam 14.
The inclination of anchor pole 15 is injected into 11 side wall of foundation pit, is then connected in coupling beam 14, applies a pulling force to coupling beam 14,
To resist the deformation of 11 side wall of foundation pit.
The work progress of the present embodiment are as follows:
It is punched on the ground with punch device according to the shape of foundation pit 11 in construction drawing first, it will be miniature after the completion of punching
13 sequences of stake are driven into each hole 12.
Then coupling beam 14 is placed on the upper end of mini pile 13, the upper end of itself and mini pile 13 is welded.
Then excavating equipment is marched into the arena, and is started to dig foundation pit, be stopped when lower digging is to close to mini pile lower end.The foundation pit of first stage
Construction terminates.Mini pile 13 in the foundation pit 11 is known as first layer mini pile.
Then continue to be punched with punch device in the surrounding of above-mentioned foundation pit 13 and squeeze into mini pile 13 in hole 12, then use
Whole mini piles 13 are linked in sequence and dig foundation pit 11 together and again by coupling beam 14.Mini pile 13 in the foundation pit 11 is known as second
Layer mini pile.The lower end of first layer mini pile is inserted into the lower section of coupling beam on second layer mini pile.
The above process persistently carries out, until the total depth of foundation pit 11 reaches requirement.Under normal circumstances, the quantity of foundation pit 11 is
3, the height of every layer of foundation pit is 4 meters.On the one hand perforating efficiency can be taken into account, because too deep hole needs large scale equipment to march into the arena,
It is larger to the destruction of loose bottom；On the other hand the efficiency for digging foundation pit 11 can be taken into account, single digs the depth as shallow meeting duration
Extension is obviously increased with construction cost.
In work progress, the lower end of each layer of mini pile 13 will be inserted into the lower section of coupling beam 14 on next layer of mini pile 13.
And the mini pile 13 of each layer of mini pile 13 and adjacent layer will be staggered, such as some mini pile 13 in the second layer
Between the adjacent mini pile 3 of first layer and third layer.Mini pile 13 can be made to form one in this way and be similar to netted structure,
After some 13 stress of mini pile, adjacent other coupling beams 14 and mini pile 13 can be passed to rapidly by coupling beam 14.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (10)
1. a kind of miniature piled anchor prop structure of ladder, including foundation pit (11)；It is characterized by also including be evenly arranged on foundation pit (11)
Hole (12) in side wall, the mini pile (13) for being located at hole (12), the coupling beam (14) for being located at mini pile (13) upper end and inclination are injected
Anchor pole (15) in foundation pit (11) side wall；
The mini pile (13) is vertically arranged；
The coupling beam (14) sequentially connect with each mini pile (13)；
The higher one end of the anchor pole (15) is connected on coupling beam (14).
2. the miniature piled anchor prop structure of a kind of ladder according to claim 1, it is characterised in that: the adjacent mini pile
(13) interplanar spacing is 1.5-2.0 times of stake diameter.
3. the miniature piled anchor prop structure of a kind of ladder according to claim 1 or 2, it is characterised in that: the foundation pit
(11) quantity is two or more；
Sequence is arranged the foundation pit (11) from top to bottom.
4. the miniature piled anchor prop structure of a kind of ladder according to claim 3, it is characterised in that: next foundation pit
(11) length and width is respectively less than the length and width of a foundation pit (11).
5. the miniature piled anchor prop structure of a kind of ladder according to claim 2, it is characterised in that: the anchor pole (15)
Injecting angle is 5 ° -25 °.
6. the miniature piled anchor prop structure of a kind of ladder according to claim 1, it is characterised in that: the mini pile (13)
Diameter be 200-300mm.
7. the miniature piled anchor prop structure of a kind of ladder according to claim 4, it is characterised in that: a upper foundation pit
(11) lower end of the mini pile on side wall (13) is inserted under the adjacent coupling beam (14) on the next foundation pit (11) side wall
Side.
8. the miniature piled anchor prop structure of a kind of ladder according to claim 3, it is characterised in that: the foundation pit (11)
Total depth be less than or equal to 12 meters.
9. the miniature piled anchor prop structure of a kind of ladder according to claim 1, it is characterised in that: Adjacent Pit (11) side
Mini pile (13) on wall is staggered.
10. the miniature piled anchor prop structure of a kind of ladder according to claim 1, it is characterised in that: the mini pile
It (13) is reinforced concrete pile or Section-steel Piles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920050178.5U CN209555940U (en) | 2019-01-11 | 2019-01-11 | A kind of miniature piled anchor prop structure of ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920050178.5U CN209555940U (en) | 2019-01-11 | 2019-01-11 | A kind of miniature piled anchor prop structure of ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209555940U true CN209555940U (en) | 2019-10-29 |
Family
ID=68306178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920050178.5U Active CN209555940U (en) | 2019-01-11 | 2019-01-11 | A kind of miniature piled anchor prop structure of ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209555940U (en) |
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2019
- 2019-01-11 CN CN201920050178.5U patent/CN209555940U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 050000 room 2201, Binjiang Yougu building, No. 3, xiumen street, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee after: Zhongdi Zhicheng Construction Technology Co., Ltd Address before: Room 1-2803, Binjiang Business Building, 158 Shandong Road, Qiaoxi District, Shijiazhuang City, Hebei Province, 050000 Patentee before: HEBEI ZHONGDI ZHICHENG FOUNDATION ENGINEERING Co.,Ltd. |
|
| CP03 | Change of name, title or address |