CN206902710U - Retaining wall and counter-force open caisson platform pile pulling system - Google Patents
Retaining wall and counter-force open caisson platform pile pulling system Download PDFInfo
- Publication number
- CN206902710U CN206902710U CN201720342184.9U CN201720342184U CN206902710U CN 206902710 U CN206902710 U CN 206902710U CN 201720342184 U CN201720342184 U CN 201720342184U CN 206902710 U CN206902710 U CN 206902710U
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- pile pulling
- open caisson
- pile
- anchor
- hole
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Abstract
A kind of retaining wall and counter-force open caisson platform pile pulling system are the utility model is related to, belong to stake in the engineerings such as water conservancy, highway, railway, municipal administration, bridge removes technical field.The pile pulling system, which is arranged at, is embedded in the treating near pile pulling of earth's surface certain depth below, including open caisson, more anchorage cable materials and punching jack, very heavy roof panel is set on open caisson, open caisson is located in the other stakes treated near pile pulling or treated on the native rock mass on pile pulling periphery, treat the top exposed of pile pulling in open caisson, treat that pile pulling is formed with anchor hole, transfer to anchor hole one end of anchorage cable materials, it is perfused with anchor hole after solidification and treats that, to form the first slurry of anchor pole in pile pulling, punching jack is used to pull up to treat pile pulling for anchorage cable materials to be fixed on.The pile pulling system can fast and safely extract big pile body, great amount of cost is saved while entirety is very reliably secure, security greatly improves, constructs and is applicable especially for the pile pulling by railway roadbed, does not interfere with railway roadbed safety, space-consuming is also small, and improves efficiency.
Description
Technical field
A kind of open caisson platform pile pulling system is the utility model is related to, belongs to the engineerings such as water conservancy, highway, railway, municipal administration, bridge
Middle stake removes technical field.
Background technology
, it is necessary to which the whole stake for influenceing tunnel construction is carried to safe altitude in existing subway tunnel construction, tunnel will be influenceed
The whole stake of construction is extracted completely or part is extracted.
But according to the applicant understood, existing pile pulling technology both domestic and external, mainly using following several ways：
1) impact broken stake method and pull out method with full-sleeve anti-attrition；Both pile pulling technologies rely primarily on all casing drill and large-scale
Crane, therefore higher is required to construction site, construction site area is very big and place top limits without clear height, still, actually applies
Work environment is unapproachable.
2) method of all casing static pressure pile pulling, this method is using steel sleeve and combines injection water under high pressure and high pressure swelling
Soil paste is purged to the border soil body of stake, then carries out pile pulling, but technique is more complicated, actual longer, especially for that
This close to pulling out for more piles can not be applicable.
3) directly the pile crown reinforcing bar in bored concrete pile and pile pulling setting are connected, gradually force is until stake is extracted, still, now
Have the reinforced steel bar strength in bored concrete pile it is low, weld unreliable, unbalance stress, easily bored concrete pile is pulled off, this be pile pulling construction in institute
Do not allow.
In addition, according to the applicant understood, in the pile pulling construction by railway roadbed, especially by the railway roadbed of crawl space
Pile pulling construction in, in order to ensure railway roadbed safety, there are currently no a kind of pile pulling technology to be applicable.
To sum up, in existing pile pulling technology, equipment requirement is high, space is big, flexibility is small, enables large-scale crane risk
Greatly, it is impossible to fully meet and fast and safely extract large diameter pile, especially fast and safely extract large diameter pile in small space.
Utility model content
The technical problems to be solved in the utility model is in view of the shortcomings of the prior art, proposing that a kind of fast and safely extraction is different
The retaining wall and counter-force open caisson platform pile pulling system of diameter stake.
The utility model is to solve the technical scheme that above-mentioned technical problem proposes to be：A kind of retaining wall and counter-force open caisson platform
Pile pulling system, be arranged at and be embedded in the treating near pile pulling of earth's surface certain depth below, including open caisson, more high intensity anchorage cable materials and
Punching jack, is provided for the very heavy roof panel of punching jack installation on the open caisson, and the open caisson is located at treating that pile pulling is attached
In near other stakes or treat on the native rock mass on pile pulling periphery, the top exposed for treating pile pulling is described to treat pile pulling in open caisson
Top is formed with the anchor hole extended to its bottom, and one end of the anchorage cable materials is transferred to the anchor hole, the anchorage cable materials
The other end, which exposes, to be treated at the top of pile pulling；Be perfused with the anchor hole solidification after be used for the anchorage cable materials are fixed on treat in pile pulling with
The first slurry of anchor pole is formed, the punching jack treats pile pulling for the other end of anchorage cable materials described in tensioning to pull up.
The utility model is using the effect of above-mentioned technical proposal：Open caisson of the present utility model is to sink to treat near pile pulling
Other stakes on or treat open caisson on the native rock mass on pile pulling periphery, while the top exposed for treating pile pulling treats pile pulling in open caisson
Top has drilled anchor hole, and one end of anchorage cable materials is transferred to anchor hole, and its other end, which exposes, to be treated at the top of pile pulling, be perfused with hole by
High intensity anchorage cable materials are fixed on the slurry for treating that anchor pole is formed in pile pulling, and punching jack is used for the other end of stretch-draw anchor material
Pile pulling is treated to pull up, is so had the effect that：
1) cleverly the anchor pole in existing Anchorage Technology is moved in pile pulling, compared to the thinking that tradition pulls out stake
Set is hang pulling out again after the appearance of stake is fixed simply, and the utility model breaches this thinking set, treats pile pulling elder generation
Drilling is anchored pulls out again, is pulled out after forming first anchor, therefore very unexpected.
The utility model both can treat that pile pulling carried out anchoring lifting for different-diameter (large, medium and small), while treat and pull out again
Stake is reinforced, and can effectively be prevented the broken pile in pile pulling and fast and safely be extracted big pile body, especially in small space
Pulling out for the more piles being closely adjacent to each other is very applicable, is saved while entirety is very reliably secure, security greatly improves a large amount of
Cost, and improve efficiency.
2) open caisson is both basis, earth-retaining and water-retaining structure thing when being construction again, and crater wall branch need not be set in sinking watching
Support or sheet pile leg, simplify construction, smaller on close to buildings influence during open caisson construction, by setting open caisson platform, especially
It is to be applicable for the pile pulling construction by railway roadbed, does not interfere with railway roadbed safety, space-consuming is also small.
The improvement of above-mentioned technical proposal is：It is described to treat to be formed with the pile body grout hole for penetrating its top surface and bottom surface in pile pulling；Institute
State pile body grout hole and be used for the slurry of recharge second during pile pulling.
The utility model is using the effect of above-mentioned technical proposal：Its top surface and bottom surface are penetrated due to treating to be formed with pile pulling
Pile body grout hole, pile body grout hole the second slurry of recharge can be passed through, it can be ensured that the knot of stake during pulling up and treating pile pulling
Structure safety, protection surrounding building underground structure is stable, prevents from caving in, meanwhile, atmospheric pressure internal and external equilibrium can be made, reduce lifting
Power, improve success rate.It is of special importance that in the construction requirement for only needing to extract when pile pulling part, due to treating pulling up
During pile pulling, passing through pile body grout hole the second slurry of recharge so that the second slurry penetrates into the pile peripheral earth for treating pile pulling bottom,
And by the soil body and treat that pile pulling is linked as entirety, so, the remainder do not extracted completely treats that pile pulling can also be utilized.
The one of perfect of above-mentioned technical proposal be：It is described to treat to be formed with the static blasting extended to its bottom at the top of pile pulling
Hole；Cracking agent has been poured into the static blasting hole and has been blocked fast hydraulic cement block.
The utility model is using the effect of above-mentioned technical proposal：By treating to be formed with the top of pile pulling to the extension of its bottom
Static blasting hole, so by punching jack lifted anchorage cable materials the other end to pull up after pile pulling, first in static state
Cracking agent is poured into blast hole and the aperture 12-18 hours in static blasting hole are blocked with fast hydraulic cement, is then set by broken
The standby pile body that carries out crushes, and with reference to methods such as coagulation cutting and gas cutting reinforcing bars, can be realized with fast decoupled concrete and treated pile pulling
Top is removed, and pile pulling engineering is smoothly turned into subsequent processing, next pile.
Perfect two of above-mentioned technical proposal are：The depth of the anchor hole and the length of anchor pole are less than the length for treating pile pulling
Spend and be more than the least anchorage length of the anchor pole, the least anchorage length L of the anchor pole is calculated as follows：
In formula, a is safety coefficient；σ is anchorage cable materials intensity；A is anchorage cable materials area of section；D is anchor hole diameter；τ is
Anchor pole and hole wall shearing strength.
Perfect three of above-mentioned technical proposal are：The anchorage cable materials are provided with outlet respectively positioned at anchor hole bottom, middle part
With three grout pipes at top.
Perfect four of above-mentioned technical proposal are：The anchor hole is positioned at an anchor hole or the edge for treating pile pulling cross-section center
Treat at least two uniform anchor holes of pile pulling cross-section center border.
Perfect five of above-mentioned technical proposal are：It is described to treat that pile pulling is interlocking pile, cushion cap stake and driven pile.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is the pile pulling device general illustration that the open caisson pile extracting method of the utility model embodiment uses.
Fig. 2 is the layout drawing one for the pile pulling device that Fig. 1 is used.
Fig. 3 is the layout drawing two for the pile pulling device that Fig. 1 is used.
Fig. 4 is the schematic diagram in anchor hole, pile body grout hole and static blasting hole that Fig. 1 treats to drill in pile pulling.
Embodiment
Embodiment
The retaining wall and counter-force open caisson platform pile pulling system of the present embodiment, as shown in Figure 1 and Figure 4, are arranged at and are embedded in earth's surface
Certain depth below is treated near pile pulling 1, including open caisson 3, more high intensity anchorage cable materials 2 and punching jack 5.On open caisson 3
It is provided for the very heavy roof panel 4 of the installation of punching jack 5.
Open caisson 3, which is located at, to be treated (as shown in Figure 2) in other stakes near pile pulling 1 or treats (such as Fig. 3 on the native rock mass on pile pulling periphery
It is shown), treat the top exposed of pile pulling 1 in open caisson 3.
The present embodiment treats that pile pulling 1 is interlocking pile, cushion cap stake and driven pile.The anchorage cable materials 2 of the present embodiment can be gold
Category hard or soft material are made.Metal hard is made, such as：Bond steel skein, prestress wire, prestress steel twist-beam,
High tensile steel wire, high-strength steel cord or high tensile reinforcement, etc.；Can also be made of non-metal hard or soft material, such as：It is fine
Dimension, plastics or nylon, etc..Open caisson 3 is circular open caisson, rectangular open caisson, round tip shape caisson, concrete open caisson, armored concrete
Open caisson or steel open caisson, etc..
Treat that the top of pile pulling 1 is formed with the anchor hole 1-1 extended to its bottom.Anchor hole 1-1 is to be located to treat the cross-section center of pile pulling 1
An anchor hole or along treating at least two uniform anchor holes of the cross-section center border of pile pulling 1.
Anchor hole 1-1 drillings use track-mounted drill D150, separate unit power 75kW；Match somebody with somebody 15m3 simultaneously, 1.3MPa air compressor machines are empty
Press power 135kW.Operating efficiency is 60m/8hr.After being drilled hole, dry pulp is cleaned with clear water, and drains wherein Free water, under
Before anchorage cable materials 2, with plug aperture, prevent in foreign matter access aperture.If treating, pile pulling 1 is still used as engineering pile, to avoid
Damage of the track-mounted drill to stake, geological drilling rig can be used to drill.If treat that the top surface of pile pulling below earth's surface, can pass through
The stake of clear and definite pile center and diameter is reconnoitred, anchor hole 1-1 is drilled by tiretube process.
One end of the anchorage cable materials 2 of the present embodiment is transferred to anchor hole 1-1, and the other end of anchorage cable materials 2, which exposes, treats pile pulling 1
Top；Treated after solidification is perfused with anchor hole 1-1 for anchorage cable materials 2 to be fixed in pile pulling 1 to form the first slurry of anchor pole,
The other end that punching jack is used for stretch-draw anchor material 2 treats pile pulling 1 to pull up.
The anchor hole 1-1 of the present embodiment depth and the length of anchor pole are less than the length for treating pile pulling 1 and are more than the minimum of anchor pole
Anchorage length, the least anchorage length L of anchor pole are calculated as follows：
In formula, a is safety coefficient；σ is anchorage cable materials intensity；A is anchorage cable materials area of section；D is anchor hole diameter；τ is
Anchor pole and hole wall shearing strength.
The present embodiment treats to be formed with the pile body grout hole 1-2 for penetrating its top surface and bottom surface in pile pulling 1；Pile body grout hole 1-2
For the slurry of recharge second during pile pulling.
For fast decoupled concrete, realize that the top for treating pile pulling 1 is removed, by pile pulling engineering smoothly turn to subsequent processing,
Next pile：
The top for treating pile pulling 1 of the present embodiment is formed with the static blasting hole 1-3 extended to its bottom；Static blasting hole 1-3
In poured into cracking agent and block have fast hydraulic cement block.
Static blasting hole 1-2 aperture 12-18 hours are typically blocked with fast hydraulic cement, are then carried out by disintegrating apparatus
Pile body crushes.Static blasting hole 1-2 is drilled out in advance need to abolish position, is distributed in " ten " font.Cracking agent uses SCA-2
Type (soundless cracking agent), suitable for 10-25 DEG C of environment, allocate by every bag of 5 kilograms of cracking agents and 1.5 liters of water, after stirring, ensure broken
Broken dose is completely dissolved in water into slurry.Slurry must be poured into the 1-2 of static blasting hole in 10-15 minutes after agitation, filled
Fill out from the 15mm of aperture, slurry is poured into hole and stirred in hole, to ensure not having stomata in drilling；With fast hard after completing
Property cement blocks aperture；Effect can be reached after 12-18 hours.
It is closely knit in order to ensure being in the milk, the anchorage cable materials 2 of the present embodiment be provided with outlet respectively positioned at anchor hole 1-1 bottoms, in
Three grout pipes at portion and top.
Slurry is irrigated into anchor hole 1-1 using pressure grouting, slurry be by PO52.5 cement, the agent of cement mortar hole path pressure grouting and
The slurry that water mixes, the water-cement ratio of slurry is 0.35~0.45；Pressure grouting is carried out using mortar mixer and grouting pump.
Mortar block can be carried out before mud jacking and makes experiment, it is ensured that test block 3d intensity reaches 25MPa, and 10d intensity reaches 30MPa.
Pressure grouting (perfusion slurry) is carried out using mortar mixer and grouting pump.Grouting works as filling by bottom up grouting
During supreme grout pipe one by one, a upper grout pipe is opened, until filling to design attitude.Grouting makes 3 groups of cement mortar test blocks every time,
Using mortar block, treat that 3d, 7d suppress test block, can be lifted after intensity reaches.
Because stake week is influenceed by connections such as barricade, canal walls, track-mounted drill D150 can be used, this is connected through into drilling
Eliminate.When eliminating the connection, drilling scope is suitably increased, deepened, and prevents the following scope of strong ties from larger reaming be present with collapsing
Hole.Strong ties eliminate selection and carried out with the anchor hole 1-1 same periods.
Frictional resistance between stake week and soil layer partially removes, and is by drilling a number of hole, appropriate bath realization in stake week
Eliminate the mill resistance of stake week.Lower diameter 50PVC floral tubes in hole.
Pile pulling is divided into following several stages, will estimate lifting force and is divided into 10 grades, every grade of 10 clocks of observation are per minute to survey a number
According to analysis displacement at pile top changes over time and with loads change relation.Monitor ground settlement displacement, structural stress and change simultaneously
Shape.Assuming that：It is 8000kN to estimate lifting force, and specific load is classified as 800kN, 1600kN, 2400kN, until starting load.
The utility model is not limited to above-described embodiment.All technical schemes formed using equivalent substitution, all fall within this reality
With the protection domain of new requirement.
Claims (6)
1. a kind of retaining wall and counter-force open caisson platform pile pulling system, be arranged at be embedded in earth's surface certain depth below treat that pile pulling is attached
Closely, including open caisson, more high intensity anchorage cable materials and punching jack, the installation of punching jack is provided on the open caisson
Very heavy roof panel, it is characterised in that the open caisson is located on the native rock mass for treating in other stakes near pile pulling or treating pile pulling periphery,
The top exposed for treating pile pulling is described to treat to be formed with the anchor hole extended to its bottom, the anchor cable at the top of pile pulling in open caisson
One end of material is transferred to the anchor hole, and the other end of the anchorage cable materials, which exposes, to be treated at the top of pile pulling；Irrigated in the anchor hole
Treated after having solidification for the anchorage cable materials to be fixed in pile pulling to form the first slurry of anchor pole, the punching jack use
In the other end of anchorage cable materials described in tensioning pile pulling is treated to pull up.
2. retaining wall as claimed in claim 1 and counter-force open caisson platform pile pulling system, it is characterised in that：The top for treating pile pulling
Portion is formed with the static blasting hole extended to its bottom；Cracking agent has been poured into the static blasting hole and has been blocked fast hydraulic cement
Block.
3. retaining wall as claimed in claim 1 or 2 and counter-force open caisson platform pile pulling system, it is characterised in that：The anchor hole
Depth and the length of anchor pole are less than the length for treating pile pulling and more than the least anchorage lengths of the anchor pole, and the anchor pole is most
Small anchorage length L is calculated as follows：
In formula, a is safety coefficient；σ is anchorage cable materials intensity；A is anchorage cable materials area of section；D is anchor hole diameter；τ is anchor pole
With hole wall shearing strength.
4. retaining wall as claimed in claim 1 or 2 and counter-force open caisson platform pile pulling system, it is characterised in that：The anchor cable material
Material is provided with three piece grout pipes of the outlet respectively at anchor hole bottom, middle part and top.
5. retaining wall as claimed in claim 1 or 2 and counter-force open caisson platform pile pulling system, it is characterised in that：The anchor hole is
At least two uniform anchor holes of pile pulling cross-section center border are treated positioned at the anchor hole or edge for treating pile pulling cross-section center.
6. retaining wall as claimed in claim 1 or 2 and counter-force open caisson platform pile pulling system, it is characterised in that：It is described to treat pile pulling
It is interlocking pile, cushion cap stake and driven pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720342184.9U CN206902710U (en) | 2017-04-01 | 2017-04-01 | Retaining wall and counter-force open caisson platform pile pulling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720342184.9U CN206902710U (en) | 2017-04-01 | 2017-04-01 | Retaining wall and counter-force open caisson platform pile pulling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206902710U true CN206902710U (en) | 2018-01-19 |
Family
ID=61295124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720342184.9U Withdrawn - After Issue CN206902710U (en) | 2017-04-01 | 2017-04-01 | Retaining wall and counter-force open caisson platform pile pulling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206902710U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023008A (en) * | 2017-04-01 | 2017-08-08 | 南京瑞迪建设科技有限公司 | Retaining wall and counter-force open caisson platform pile extracting method and system |
| CN115030158A (en) * | 2022-05-27 | 2022-09-09 | 中铁第六勘察设计院集团有限公司 | Assembly type device for lifting large-diameter cast-in-place pile and green construction method |
-
2017
- 2017-04-01 CN CN201720342184.9U patent/CN206902710U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023008A (en) * | 2017-04-01 | 2017-08-08 | 南京瑞迪建设科技有限公司 | Retaining wall and counter-force open caisson platform pile extracting method and system |
| CN107023008B (en) * | 2017-04-01 | 2022-08-09 | 南京瑞迪建设科技有限公司 | Pile pulling method and system for open caisson platform for retaining wall and counterforce |
| CN115030158A (en) * | 2022-05-27 | 2022-09-09 | 中铁第六勘察设计院集团有限公司 | Assembly type device for lifting large-diameter cast-in-place pile and green construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180119 Effective date of abandoning: 20220809 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180119 Effective date of abandoning: 20220809 |