CN109577312A - A kind of silt geology vibro-replacement stone compacting pile construction method - Google Patents
A kind of silt geology vibro-replacement stone compacting pile construction method Download PDFInfo
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- CN109577312A CN109577312A CN201811401026.1A CN201811401026A CN109577312A CN 109577312 A CN109577312 A CN 109577312A CN 201811401026 A CN201811401026 A CN 201811401026A CN 109577312 A CN109577312 A CN 109577312A
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- pile
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- compacting
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
- E02D3/123—Consolidating by placing solidifying or pore-filling substances in the soil and compacting the soil
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of silt geology vibro-replacement stone compacting pile construction methods, including following construction procedure: (1) site clearing is smooth, (2) surveying setting-out, (3) construction equipment assembling is in place, and (4) pile press machine is in place, (5) impact holing, (6) tube drawing, (7) pile, (8) compacted compacting pore-forming, (9) remove top and loosen layer and the compacting that paves.The compacted inter-pile soil form compound foundation of construction method energy of the invention, can save construction machinery, reduce construction cost, working efficiency is improved, noise and mud pollution are reduced, consumption dregs keeps environment, and the method for the present invention step is simple, design is reasonable, construction technology is simple, and progress is fast, it is at low cost, it is succinct efficient, it is easy to Standardize operation, sequencing, standardization, operator and manager are easy to grasp, the intensity and overall stability that ensure that ground, ensure that construction quality.
Description
Technical field
The present invention relates to Foundation Treatment technical field, specifically a kind of silt geology vibro-replacement stone compacting pile construction side
Method.
Background technique
Passing Dense Broken Stone Peg is by, to the compacted and vibration densification of silt around, sandy soils, leaning on rubble in formation of pile
Indentation obtain consolidation effect, rearrange the grogs around stake closely knit, void ratio reduce, compactness increase.Meanwhile it being formed
Dense Broken Stone Peg reinforcement, itself is again a good drainage channel, its presence not only contributes to sand, in powder soil horizon
The dissipation of excess pore water pressure effectively enhances the anti-liquefying ability of the soil body, and under the action of load, Dense Broken Stone Peg increases
Strong body forms Dense Broken Stone Peg composite earth layer again with sand, powder soil horizon shared load action.
Dense Broken Stone Peg is suitable for loose silt, sand, plain fill and Artifical Fill Ground.Broken stone pile is main in engineering
Applied to highway, railway, municipal administration and room build etc. liquescency that flabbiness ground strengthened, embankment slope reinforces, eliminates liquefiable sandy soil,
The collapsibility of Compaction variables loess, the shearing resistance non-deformability for increasing ground.Traditional construction construction technology speed is slow, internal broken
Stone vibrates unevenly, and stressed effect is poor.
Summary of the invention
The purpose of the present invention is to provide a kind of silt geology vibro-replacement stone compacting pile construction methods, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of silt geology vibro-replacement stone compacting pile construction method, including following construction procedure:
(1) site clearing is smooth: being cleared up according to the arrangement and method for construction of design construction site, while eliminating construction site
High-altitude and ground obstacle；
(2) surveying setting-out: restoring middle line, releases the stake of section sideline, clears up smooth construction section foundation surface, measure stake
Position, and drilling machine is laid in designated position；
(3) construction equipment assembling is in place: assembling pilot hole water filling hidden pipe pile machine and its bracket, and assembling, which is rammed, expands equipment, completes stake
Base degree control, water injection equipment debugging；
(4) pile press machine is in place: after selected hydraulic static pile pressing machine installation and debugging are good, at row to stake position, making hydraulic
Static pile press clamping jaw center is substantially aligned with the sample stake on ground, levels hydraulic static pile pressing machine, it is ensured that in construction
Not run-off the straight and movement, check again it is errorless, by long stride land stress；
(5) impact holing: hammer hidden pipe method pore-forming, when pile top starts to bury, first low hammer tap or low mention are beaten again, wait sink to
In soil 1~2m and various aspects it is normal after, then with scheduled speed, fall away from hammer hidden pipe to projected depth.
(6) tube drawing: pile pipe is extracted in time after sinking to projected depth, in order to avoid difficulty in decannulation after frictional resistance increase；Tube drawing is true
When real difficult, the method for soaking or try to rotate pile pipe pipe week is taken to reduce resistance in soil.
(7) pile: by defined fillings rubble amount by rubble loading pile pipe, if pile pipe is not accommodated once and should be poured into
Whole rubbles, remaining rubble are supplemented being packed into after pile pipe promotes blanking pressure by cibration for a period of time.
(8) compacted compacting pore-forming: compacted pore-forming is combined using equilateral triangle arrangement, pore-forming using " interlacing is beaten every row, jump "
Method, compaction in layers pile survives for four times, while at the compacted formation Dense Broken Stone Peg of hole edge filling tamped；
(9) remove top and loosen layer and the compacting that paves: after pilot hole, ramming, surface loosens, and is gone according to condition of construction
Except surface loosens layer, surface loosens layer and with backfill carries out place Min layers and fill out to be densified to designed elevation.
As a further solution of the present invention: the hydraulic static pile pressing machine is the piling of hugging pressure type hydraulic static.
As a further solution of the present invention: the hydraulic static pile pressing machine is top press type hydralic static pile press machine.
As a further solution of the present invention: when step (5) hammer hidden pipe, when the gradient of stake is more than 1.5%, pulling out
Pipe filling perforation is beaten again.
As a further solution of the present invention: in the step (5), when immersed tube speed be less than 1m/min when, by it is inner outward
It hits；When pilespacing is 2.0~2.5 times of stake diameters or pilespacing is less than 2m, constructed using the method that jump point, the row of jump beat.
As a further solution of the present invention: when step (5) impact holing, steel pipe guider on drilling machine, by wall
The seamless steel pipe of thick 10mm or more is made, and internal diameter is greater than tup diameter, is highly 2 times of block stamp length.
As a further solution of the present invention: starting tube drawing, side again after should first vibrating 5~10s when step (6) tube drawing
Vibration side is pulled out, and tube drawing 1.2m, anti-plug 0.6m mention pipe 0.3m；Land pile pipe, 15~20s of vibration-extrusion, then tube drawing 1.2m, so anti-
Again until full pipe is extracted.
Compared with prior art, the beneficial effects of the present invention are:
The compacted inter-pile soil form compound foundation of construction method energy of the invention, can save construction machinery, reduction is constructed into
This, improves working efficiency, reduces noise and mud pollution, consumption dregs keeps environment, and the method for the present invention step is simple, design
Rationally, construction technology is simple, and progress is fast, at low cost, succinct efficient, is easy to Standardize operation, sequencing, standardization, operator
It is easy to grasp with manager, ensure that the intensity and overall stability of ground, ensure that construction quality.
Specific embodiment
Technical solution of the present invention will be clearly and completely described below, it is clear that described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
Embodiment 1
A kind of silt geology vibro-replacement stone compacting pile construction method, including following construction procedure:
(1) site clearing is smooth: being cleared up according to the arrangement and method for construction of design construction site, while eliminating construction site
High-altitude and ground obstacle；
(2) surveying setting-out: restoring middle line, releases the stake of section sideline, clears up smooth construction section foundation surface, measure stake
Position, and drilling machine is laid in designated position；
(3) construction equipment assembling is in place: assembling pilot hole water filling hidden pipe pile machine and its bracket, and assembling, which is rammed, expands equipment, completes stake
Base degree control, water injection equipment debugging；
(4) pile press machine is in place: after selected hydraulic static pile pressing machine installation and debugging are good, at row to stake position, making hydraulic
Static pile press clamping jaw center is substantially aligned with the sample stake on ground, levels hydraulic static pile pressing machine, it is ensured that in construction
Not run-off the straight and movement, check again it is errorless, by long stride land stress；Hydraulic static pile pressing machine is that hugging pressure type is hydraulic at this time
Static press piling；
(5) impact holing: hammer hidden pipe method pore-forming, when pile top starts to bury, first low hammer tap or low mention are beaten again, wait sink to
In soil 1m and various aspects it is normal after, then with scheduled speed, fall away from hammer hidden pipe to projected depth；When immersed tube speed is less than 1m/
When min, hit outward by inner；When pilespacing is 2.0 times of stake diameters or pilespacing is less than 2m, constructed using the method that jump point, the row of jump beat；Hammer
When sinking pipe, when the gradient of stake is more than 1.5%, tube drawing filling perforation is beaten again；
When impact holing, steel pipe guider on drilling machine is made of the seamless steel pipe of wall thickness 10mm or more, and internal diameter is greater than hammer
Head diameter is highly 2 times of block stamp length；
(6) tube drawing: pile pipe is extracted in time after sinking to projected depth, in order to avoid difficulty in decannulation after frictional resistance increase；Tube drawing is true
When real difficult, the method for soaking or try to rotate pile pipe pipe week is taken to reduce resistance in soil；It is opened again after 5s should first be vibrated when tube drawing
Beginning tube drawing is pulled out in vibration, and tube drawing 1.2m, anti-plug 0.6m mention pipe 0.3m；Land pile pipe, vibration-extrusion 15s, then tube drawing 1.2m, such as
This is repeatedly until full pipe is extracted；Pipe-pulling speed is uniform.
(7) pile: by defined fillings rubble amount by rubble loading pile pipe, if pile pipe is not accommodated once and should be poured into
Whole rubbles, remaining rubble are supplemented being packed into after pile pipe promotes blanking pressure by cibration for a period of time.
(8) compacted compacting pore-forming: compacted pore-forming is combined using equilateral triangle arrangement, pore-forming using " interlacing is beaten every row, jump "
Method, compaction in layers pile survives for four times, while at the compacted formation Dense Broken Stone Peg of hole edge filling tamped；
(9) remove top and loosen layer and the compacting that paves: after pilot hole, ramming, surface loosens, and is gone according to condition of construction
Except surface loosens layer, surface loosens layer and with backfill carries out place Min layers and fill out to be densified to designed elevation.
Embodiment 2
A kind of silt geology vibro-replacement stone compacting pile construction method, including following construction procedure:
(1) site clearing is smooth: being cleared up according to the arrangement and method for construction of design construction site, while eliminating construction site
High-altitude and ground obstacle；
(2) surveying setting-out: restoring middle line, releases the stake of section sideline, clears up smooth construction section foundation surface, measure stake
Position, and drilling machine is laid in designated position；
(3) construction equipment assembling is in place: assembling pilot hole water filling hidden pipe pile machine and its bracket, and assembling, which is rammed, expands equipment, completes stake
Base degree control, water injection equipment debugging；
(4) pile press machine is in place: after selected hydraulic static pile pressing machine installation and debugging are good, at row to stake position, making hydraulic
Static pile press clamping jaw center is substantially aligned with the sample stake on ground, levels hydraulic static pile pressing machine, it is ensured that in construction
Not run-off the straight and movement, check again it is errorless, by long stride land stress；Hydraulic static pile pressing machine is that roof pressing type is hydraulic at this time
Static pile press；
(5) impact holing: hammer hidden pipe method pore-forming, when pile top starts to bury, first low hammer tap or low mention are beaten again, wait sink to
In soil 2m and various aspects it is normal after, then with scheduled speed, fall away from hammer hidden pipe to projected depth；When immersed tube speed is less than 1m/
When min, hit outward by inner；When pilespacing is 2.5 times of stake diameters or pilespacing is less than 2m, constructed using the method that jump point, the row of jump beat；Hammer
When sinking pipe, when the gradient of stake is more than 1.5%, tube drawing filling perforation is beaten again；
When impact holing, steel pipe guider on drilling machine is made of the seamless steel pipe of wall thickness 10mm or more, and internal diameter is greater than hammer
Head diameter is highly 2 times of block stamp length；
(6) tube drawing: pile pipe is extracted in time after sinking to projected depth, in order to avoid difficulty in decannulation after frictional resistance increase；Tube drawing is true
When real difficult, the method for soaking or try to rotate pile pipe pipe week is taken to reduce resistance in soil；It is opened again after 10s should first be vibrated when tube drawing
Beginning tube drawing is pulled out in vibration, and tube drawing 1.2m, anti-plug 0.6m mention pipe 0.3m；Land pile pipe, vibration-extrusion 20s, then tube drawing 1.2m, such as
This is repeatedly until full pipe is extracted；Pipe-pulling speed is uniform；
(7) pile: by defined fillings rubble amount by rubble loading pile pipe, if pile pipe is not accommodated once and should be poured into
Whole rubbles, remaining rubble are supplemented being packed into after pile pipe promotes blanking pressure by cibration for a period of time；
(8) compacted compacting pore-forming: compacted pore-forming is combined using equilateral triangle arrangement, pore-forming using " interlacing is beaten every row, jump "
Method, compaction in layers pile survives for four times, while at the compacted formation Dense Broken Stone Peg of hole edge filling tamped；
(9) remove top and loosen layer and the compacting that paves: after pilot hole, ramming, surface loosens, and is gone according to condition of construction
Except surface loosens layer, surface loosens layer and with backfill carries out place Min layers and fill out to be densified to designed elevation.
The foregoing descriptions are merely the embodiment using this origination techniques content, any those skilled in the art use this wound
Make done modifications and changes, all belong to the scope of the patents of this creation opinion, and is not limited to those disclosed embodiments.
If not specified, technological means employed in embodiment is conventional means known to those skilled in the art, institute
The reagent and product of use are also available commercial.The source of agents useful for same, trade name and its composition is listed when necessary
Ingredient person, is indicated on the first occurrence.
Claims (7)
1. a kind of silt geology vibro-replacement stone compacting pile construction method, including following construction procedure:
(1) site clearing is smooth: being cleared up according to the arrangement and method for construction of design construction site, while eliminating the height of construction site
Empty and ground obstacle；
(2) surveying setting-out: restoring middle line, releases the stake of section sideline, clears up smooth construction section foundation surface, measure stake position, and
Drilling machine is laid in designated position；
(3) construction equipment assembling is in place: assembling pilot hole water filling hidden pipe pile machine and its bracket, and assembling, which is rammed, expands equipment, completes pile foundation and hangs down
Straight degree control, water injection equipment debugging；
(4) pile press machine is in place: after selected hydraulic static pile pressing machine installation and debugging are good, at row to stake position, making hydraulic static
Pile press machine clamping jaw center is substantially aligned with the sample stake on ground, levels hydraulic static pile pressing machine, it is ensured that do not send out in construction
Raw inclination and mobile, checks errorless again, and long stride is landed stress；
(5) impact holing: hammer hidden pipe method pore-forming, when pile top starts to bury, first low hammer tap or low mention are beaten again, wait sink in soil
1~2m and various aspects it is normal after, then with scheduled speed, fall away from hammer hidden pipe to projected depth.
(6) tube drawing: pile pipe is extracted in time after sinking to projected depth, in order to avoid difficulty in decannulation after frictional resistance increase；Tube drawing is stranded really
When difficult, the method for soaking or try to rotate pile pipe pipe week is taken to reduce resistance in soil.
(7) pile: rubble is packed into pile pipe by defined filling rubble amount, if pile pipe does not accommodate the whole that should be poured into once
Rubble, remaining rubble are supplemented being packed into after pile pipe promotes blanking pressure by cibration for a period of time.
(8) compacted compacting pore-forming: the side that compacted pore-forming uses " interlacing is beaten every row, jump " using equilateral triangle arrangement, pore-forming is combined
Method, compaction in layers pile survives for four times, while at the compacted formation Dense Broken Stone Peg of hole edge filling tamped；
(9) remove top and loosen layer and the compacting that paves: after pilot hole, ramming, surface loosens, and removes table according to condition of construction
Face loosens layer, and surface loosens layer and with backfill carries out place Min layers and fill out to be densified to designed elevation.
2. silt geology vibro-replacement stone compacting pile construction method according to claim 1, characterized in that the hydraulic static
Pile press machine is the piling of hugging pressure type hydraulic static.
3. silt geology vibro-replacement stone compacting pile construction method according to claim 1, characterized in that the hydraulic static
Pile press machine is top press type hydralic static pile press machine.
4. silt geology vibro-replacement stone compacting pile construction method according to claim 1, characterized in that the step (5)
When hammer hidden pipe, when the gradient of stake is more than 1.5%, tube drawing filling perforation is beaten again.
5. silt geology vibro-replacement stone compacting pile construction method according to claim 1, characterized in that the step (5)
In, when immersed tube speed is less than 1m/min, hit outward by inner；When pilespacing is 2.0~2.5 times of stake diameters or pilespacing is less than 2m, adopt
The method construction beaten with jump point, the row of jump.
6. silt geology vibro-replacement stone compacting pile construction method according to claim 1, characterized in that the step (5)
When impact holing, steel pipe guider on drilling machine is made of the seamless steel pipe of wall thickness 10mm or more, and internal diameter is greater than tup diameter,
The block stamp length that height is 2 times.
7. silt geology vibro-replacement stone compacting pile construction method according to claim 1, characterized in that the step (6)
Start tube drawing again after 5~10s should first be vibrated when tube drawing, is pulled out in vibration, tube drawing 1.2m, anti-plug 0.6m mention pipe 0.3m；Landing stake
Pipe, 15~20s of vibration-extrusion, then tube drawing 1.2m, repeatedly until full pipe is extracted.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811401026.1A CN109577312A (en) | 2018-11-22 | 2018-11-22 | A kind of silt geology vibro-replacement stone compacting pile construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811401026.1A CN109577312A (en) | 2018-11-22 | 2018-11-22 | A kind of silt geology vibro-replacement stone compacting pile construction method |
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| CN201811401026.1A Pending CN109577312A (en) | 2018-11-22 | 2018-11-22 | A kind of silt geology vibro-replacement stone compacting pile construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847163A (en) * | 2019-12-17 | 2020-02-28 | 徐鹏 | Pulse pile foundation bottom expanding construction method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319500A (en) * | 2008-07-21 | 2008-12-10 | 中铁七局集团第三工程有限公司 | Construction method of static pressure compaction pile |
| CN102864774A (en) * | 2012-10-10 | 2013-01-09 | 江苏南通六建建设集团有限公司 | Shrinkage treatment construction method for composite foundation- lime soil compaction piles |
| CN107905212A (en) * | 2017-09-27 | 2018-04-13 | 中铁三局集团有限公司 | A kind of construction method of original position water filling element earth pile composite foundation |
| CN108643172A (en) * | 2018-04-02 | 2018-10-12 | 济南城建集团有限公司 | Silt geology vibro-replacement stone compacting pile construction method |
-
2018
- 2018-11-22 CN CN201811401026.1A patent/CN109577312A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319500A (en) * | 2008-07-21 | 2008-12-10 | 中铁七局集团第三工程有限公司 | Construction method of static pressure compaction pile |
| CN102864774A (en) * | 2012-10-10 | 2013-01-09 | 江苏南通六建建设集团有限公司 | Shrinkage treatment construction method for composite foundation- lime soil compaction piles |
| CN107905212A (en) * | 2017-09-27 | 2018-04-13 | 中铁三局集团有限公司 | A kind of construction method of original position water filling element earth pile composite foundation |
| CN108643172A (en) * | 2018-04-02 | 2018-10-12 | 济南城建集团有限公司 | Silt geology vibro-replacement stone compacting pile construction method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847163A (en) * | 2019-12-17 | 2020-02-28 | 徐鹏 | Pulse pile foundation bottom expanding construction method and device |
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Application publication date: 20190405 |