CN106087996A - Manual digging pile construction method based on oneself's leveling backpressure device - Google Patents
Manual digging pile construction method based on oneself's leveling backpressure device Download PDFInfo
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- CN106087996A CN106087996A CN201610572089.8A CN201610572089A CN106087996A CN 106087996 A CN106087996 A CN 106087996A CN 201610572089 A CN201610572089 A CN 201610572089A CN 106087996 A CN106087996 A CN 106087996A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention belongs to the construction field of artificial digging pile, in order to solve under water rich strata geological conditions, artificial digging pile passes through and gushes sand, the problem such as sand, collapse hole, degree control of bursting in layer of sand, Extra-fine sand geology work progress, provide a kind of manual digging pile construction method based on oneself's leveling backpressure device, use oneself's leveling backpressure device during construction and combine horizon rule examination steel pile casting insert state, utilizing jack back-pressure steel pile casting.Counter-pressure method of the present invention is utilized to can solve the problem that next-door neighbour's problem that existing railway operating line Active workings is limited, the activity duration is limited, a degree control difficult problem for steel pile casting, reduce main equipment and the input of large area Active workings, can the most dynamically adjust the perpendicularity of steel pile casting, construction effect is good simultaneously.
Description
Technical field
The invention belongs to the construction field of artificial digging pile, be specifically related to a kind of based on oneself's leveling backpressure device artificial
Dug pile construction method.
Background technology
Artificial digging pile has working place and requires the features such as little, construction technology is simple, speed of application is fast, cost is low,
In building pile foundation work progress, artificial digging pile becomes the first-selection into many engineering designs.Running into features as poor geologic condition, digging
Hole stake uses excavation one section to pour the construction method of a section concrete retaining wall, and the method for concrete guard wall is in manual digging pile construction
In be a kind of common, easy, effect preferable retaining wall mode.When running into drift sand, water rich strata condition, manual digging pile construction
Middle will be used for the construction avoiding the steel pile casting of drift sand to be directly used in superstructure steel core concrete column, use limit shoveling limit sinking steel
The mode of pipe carries out retaining wall.Also there is the circular steel pile casting of roll of steel plate using certain thick end, then use static pressure or the side of machinery
Method is pressed into and penetrates soft layer, then excavated by manual work except the soft layer in steel pile casting and continues to excavate downwards, protect according to a conventional method
Wall is until casting concrete completes.During using static pressure and mechanical means press-in, mainly use by circular steel lid
The method that steel pile casting static pressure is put in place by the method for sand pocket of banking up symmetrically and evenly on plate；Mechanical means mainly uses excavator
Scraper bowl be placed in the center compressed steel casing vertically downward of circular steel cover plate, make steel pile casting vertically, slowly sink, until design is deep
Degree, the method for press-fitting of above two steel pile casting is higher to the requirement of machinery and place.
In the occasion that some are special, the existing railway operation line that such as narrow space, activity duration are limited, construction is artificial
During caisson, the method for press-fitting of these above-mentioned steel pile casting, owing to needs use big machinery or take large-scale place etc., is executed
Work method is the most limited, it is impossible to meet requirement.Degree control at steel pile casting is also the heavy difficult point of construction simultaneously, and it is often
Need main equipment guarantee effect.
Summary of the invention
The purpose of the present invention is mainly for solving under water rich strata geological conditions, and next-door neighbour's existing railway runs line, excavated by manual work
Hole stake is passed through in layer of sand, Extra-fine sand geology work progress, prevents stake holes generation from gushing sand, routed sand, collapse hole, degree control etc. and asks
Topic, to reach purpose quick, safe efficient, that high-quality carries out man-made digging pile mould-pipe, it is ensured that construction safety, and then provides
A kind of manual digging pile construction method based on oneself's leveling backpressure device.
The present invention adopts the following technical scheme that
A kind of manual digging pile construction method based on oneself's leveling backpressure device, the construction procedure of caisson is:
The first step, routinely construction technology excavation, before manual digging pile construction passes through water rich strata, when absolute altitude at the bottom of hole is away from this ground
Time beyond layer 50cm, stop boring excavation；
Second step, utilize oneself leveling backpressure device by identical with drilled pile diameter, height be 50～100cm steel pile casting
Press-in water rich strata bottom surface below 30cm, then according to conventional construction method continues to be excavated to projected depth.
The concrete process of press in of described steel pile casting is: first back-pressure leveling I-steel and bottom back-pressure I-steel are formed
Counter-pressure system and top are fixed I-steel and are kept zero degree angle, after the jack certain stroke of downward jacking, use horizon rule to put
It is placed on steel pile casting, the angle deviating situation of examination steel pile casting；Then adjust counter-pressure system and top is fixed between I-steel
Angle, continues to make jack downward jacking back-pressure steel pile casting；The perpendicularity of recycling horizon rule examination steel pile casting, and adjust back-pressure
The angle that system and top are fixed between I-steel carries out back-pressure to steel pile casting, until steel pile casting meets perpendicularity requirement.
Described counter-pressure system and top are fixed the single between I-steel and adjusted angle is 45 or 90.The list of counter-pressure system
Secondary press-in stroke (the single jacking stroke of jack) is less than the 1/3 of steel pile casting height.
Wherein, the single jacking stroke (i.e. the single compression distance of steel pile casting) of steel pile casting press-in starting stage jack
As less than steel pile casting height 1/3, job site can according to steel pile casting height 20% control.Concrete jacking stroke can foundation
The departure degree of field geology conditions and steel pile casting adjusts, but basic principle be deviation situation occurs after, can be in time by adjusting
Steel pile casting perpendicularity.
When the thickness of water rich strata is more than a steel pile casting height, using every force feed one to save steel pile casting, drilled pile excavates
Certain altitude, reserved certain altitude, then carry out pre-manufactured steel casing force feed, circulation force feed, excavation drilled pile, until being excavated to design
The degree of depth.The i.e. single excavation height of drilled pile should be less than the single compression distance (the single jacking stroke of jack) of steel pile casting,
Making steel pile casting lower end embed below the bottom having excavated drilled pile all the time, formation supporting is excavated in the continuation to drilled pile, it is ensured that steel
The advance support effect of casing.
Described self-leveling backpressure device includes that I-steel, back-pressure leveling I-steel are fixed in the top from top to bottom arranged
With bottom back-pressure I-steel, top fix I-steel and back-pressure leveling I-steel connected by bearing pin make top fix I-steel can
Rotate around bearing pin and move along bearing pin length direction；Back-pressure leveling I-steel and bottom back-pressure I-steel constitute counter-pressure system and anti-
Being provided with some jack between pressure leveling I-steel and bottom back-pressure I-steel, top is fixed on two ends and the steel pile casting of I-steel
Pre-embedded bolt connecting plate connect, the bottom surface of bottom back-pressure I-steel acts on steel pile casting end face.
The lumps of wood backing plate of some support jacks it is additionally provided with between described back-pressure leveling I-steel and bottom back-pressure I-steel,
The two ends of lumps of wood backing plate are fixed by vertically arranged fixing Bolted angle connection respectively, and lateral connection is passed through at the two ends up and down of fixing angle steel
Ear fixes I-steel with top, bottom back-pressure I-steel is flexibly connected.
I-steel, back-pressure leveling I-steel and the width phase of bottom back-pressure I-steel are fixed in described lumps of wood backing plate and top
Deng.
The length of described fixing angle steel more than top fix maximum vertical between I-steel and bottom back-pressure I-steel away from
From and at least grow 40cm.
The length of described bottom back-pressure I-steel is equal in magnitude with the external diameter of steel pile casting.
Described pre-embedded bolt connecting plate is located along the same line with the center of circle of steel pile casting.
The present invention has the following technical effect that
1) method of jack back-pressure steel pile casting in employing caisson, makes the more traditional reduction of control difficulty of steel pile casting perpendicularity
, and it can be adjusted in construction, in traditional caisson, the perpendicularity adjustment difficulty of back-pressure steel pile casting is big, or base
Originally can not regulate, can only rely in early stage work progress and construct by rule of thumb, it is possible to solve next-door neighbour's existing railway operating line operation
The problem that place is limited, the activity duration is limited, a steel pile casting degree control difficult problem, decrease main equipment and large area operation field
The input on ground.
2) use oneself's leveling backpressure device and combine horizon rule examination steel pile casting insert state, can the most dynamically adjust steel
The perpendicularity of casing, construction effect is good.
2) use this device to carry out steel pile casting construction, equipment is simple, easy accessibility, construction less investment.
3) fast jacking of steel pile casting can be realized, can meet on-the-spot with digging with a rapid construction requirement, can effectively prevent from gushing
Sand, gushing mud and the generation of collapse hole phenomenon, safety is good.
4) the back-pressure construction operation place of steel pile casting is positioned at caisson, and the impact for surrounding enviroment is little.
5) equipment used in work progress is simple, draws materials extensively, easily operates, easily process.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of oneself's leveling back-pressure construction combination unit；
Fig. 2 is the installation top view of top I-steel；
Fig. 3 is the installation top view of top I-steel and leveling I-steel；
In figure: 1-concrete guard wall, 2-pre-embedded bolt connecting plate, 3-lumps of wood backing plate, 4-back-pressure leveling I-steel, 5-bottom back-pressure
I-steel, 6-steel pile casting, 7-fix angle steel, I-steel is fixed on 8-top, 9-jack, 10-caisson, 12-bearing pin.
Detailed description of the invention
In conjunction with accompanying drawing, the detailed description of the invention of the present invention is described further:
Overall technological scheme: before manual digging pile construction passes through the stratum such as layer of sand, Extra-fine sand, surveys according to test pile situation and geology
Examine data, when absolute altitude at the bottom of hole to such stratum certain altitude (50cm specifically can determine according to stake footpath and water content situation), stop
Boring excavation.The steel pile casting of sheet metal thickness identical with drilled pile diameter, reasonable, highly (50～100cm) by diameter, utilizes
Steel pile casting is pressed into below sandy strata bottom surface (30cm, reference value) by oneself's leveling backpressure device pressure, then according to conventional construction
Method is excavated；If sand layer thickness is more than a casing height, every force feed one can be used to save steel pile casting, excavation is certain high
Degree, reserved certain altitude, then carry out pre-manufactured steel casing force feed, circulate force feed, excavation, until being excavated to projected depth.
The structure of described oneself's leveling backpressure device is as it is shown in figure 1, mainly have I-steel, big stroke jack, I-steel
Connecting plate, lumps of wood backing plate, the fixing composition such as angle steel, horizon rule.The one before concrete guard wall at construction steel casing circulates colligation and mixes
During solidifying soil retaining wall reinforcing bar, the connecting plate of the most symmetrical pre-buried I-steel, prepared screw-bolt hole on junction steel plate, pre-buried work
The center of circle of word steel connecting plate and stake is point-blank.
Wherein, I-steel is divided into top to fix I-steel, back-pressure leveling I-steel and three, bottom back-pressure I-steel.Wherein
Top is fixed I-steel two ends and is welded with Bolt plate, can be connected with reserved Bolt plate；The length of I-steel is fixed to meet in top
Can be connected with pre-buried connecting plate and be advisable.Back-pressure leveling I-steel is fixed I-steel by centre bore, central shaft with top and is connected,
Central shaft uses pin to connect, it is ensured that the two is concentric, can move up and down, but not slide laterally.
Bottom back-pressure I-steel is identical with the model of back-pressure leveling I-steel, and length is equal in magnitude with steel pile casting external diameter.Under
Portion's back-pressure I-steel directly acts on steel pile casting end face.Two same model jack are used to carry out synchronization of jacking up, until meeting
Steel pile casting insertion depth requirement；After the insertion depth of steel pile casting requires to exceed jack stroke range, use at upper and lower I-shaped
Increase lumps of wood backing plate between steel, require until the steel pile casting jacking degree of depth meets, the width of lumps of wood backing plate and I-steel width
Unanimously, lumps of wood backing plate carries out stable row control by being fixed on the angle steel of upper and lower I-steel both sides.Angle steel and upper and lower back-pressure I-shaped
Steel uses lateral connection ear to connect, it is ensured that angle steel can be carried out vertical direction move along with the increase of lumps of wood backing plate, and angle steel model can
Determining according to practical situation, length is can connect upper and lower I-steel, and considers that certain surplus (reference value 40cm) is advisable.
In process of press in, the counter-pressure system that can first back-pressure leveling I-steel and bottom back-pressure I-steel be formed is with upper
The holding zero degree angle of I-steel is fixed in portion, after the certain stroke of jack jacking, uses horizon rule to be directly placed at steel pile casting
On, the angle deviating situation of examination steel pile casting, then according to certain angle (generally 45 or 90), adjust the back-pressure decorum with
The angle of I-steel is fixed on top, as it is shown on figure 3, carry out back-pressure and perpendicularity adjustment, until steel pile casting meets perpendicularity requirement.
Steel pile casting back-pressure is constructed to projected depth, removes lumps of wood backing plate and I-steel, practical for later cycles.
Claims (10)
1. a manual digging pile construction method based on oneself's leveling backpressure device, it is characterised in that the construction procedure of caisson
For:
The first step, routinely construction technology excavation, before manual digging pile construction passes through water rich strata, when absolute altitude at the bottom of hole is away from this ground
Time beyond layer 50cm, stop boring excavation；
Second step, utilize oneself leveling backpressure device by identical with drilled pile diameter, height be 50～100cm steel pile casting
(6) press-in water rich strata bottom surface below 30cm, then according to conventional construction method continues to be excavated to projected depth.
Manual digging pile construction method based on oneself's leveling backpressure device the most according to claim 1, it is characterised in that
The concrete process of press in of described steel pile casting (6) is: first back-pressure leveling I-steel (4) and bottom back-pressure I-steel (5) are formed
Counter-pressure system and top fix I-steel (8) and keep zero degree angle, after jack (9) the downwards certain stroke of jacking, use
Horizon rule is positioned on steel pile casting (6), the angle deviating situation of examination steel pile casting (6)；Then counter-pressure system is adjusted solid with top
Determine the angle between I-steel (8), continue to make jack (9) jacking back-pressure steel pile casting (6) downwards；Recycling horizon rule examination steel
The perpendicularity of casing (6), and adjust counter-pressure system and steel pile casting (6) is carried out instead by angle that top is fixed between I-steel (8)
Pressure, until steel pile casting meets perpendicularity requirement.
Manual digging pile construction method based on oneself's leveling backpressure device the most according to claim 2, it is characterised in that:
Described counter-pressure system and top are fixed the single between I-steel (8) and adjusted angle is 45 or 90；The single pressure of counter-pressure system
Enter stroke less than the 1/3 of steel pile casting (6) height.
Manual digging pile construction method based on oneself's leveling backpressure device the most according to claim 3, it is characterised in that:
When water rich strata thickness more than a steel pile casting (6) highly time, use every force feed one to save steel pile casting (6), drilled pile excavation one
Fixed height, reserved certain altitude, then carry out the force feed of pre-manufactured steel casing (6), circulation force feed, excavation drilled pile, until being excavated to
Projected depth；Wherein, the single excavation height of drilled pile is less than the single compression distance of steel pile casting (6).
Manual digging pile construction method based on oneself's leveling backpressure device the most according to claim 4, it is characterised in that:
Described self-leveling backpressure device include the top from top to bottom arranged fix I-steel (8), back-pressure leveling I-steel (4) and
Bottom back-pressure I-steel (5), top is fixed I-steel (8) and back-pressure leveling I-steel (4) and is made top by bearing pin (12) connection
Fixing I-steel (8) can rotate around bearing pin (12) and move along bearing pin (12) length direction；Back-pressure leveling I-steel (4) and bottom
Back-pressure I-steel (5) constitutes counter-pressure system and is provided with some thousand between back-pressure leveling I-steel (4) and bottom back-pressure I-steel (5)
Jin pushes up (9), and top is fixed the two ends of I-steel (8) and is connected with the pre-embedded bolt connecting plate (2) on steel pile casting (6), bottom back-pressure
The bottom surface of I-steel (5) acts on steel pile casting (6) end face.
Manual digging pile construction method based on oneself's leveling backpressure device the most according to claim 5, it is characterised in that:
The lumps of wood backing plate of some support jacks (9) it is additionally provided with between described back-pressure leveling I-steel (4) and bottom back-pressure I-steel (5)
(3), the two ends of lumps of wood backing plate (3) are connected fixing respectively by vertically arranged fixing angle steel (7), up and down the two of fixing angle steel (7)
End fixes I-steel (8) by lateral connection ear with top, bottom back-pressure I-steel (5) is flexibly connected.
Manual digging pile construction method based on oneself's leveling backpressure device the most according to claim 6, it is characterised in that:
I-steel (8), back-pressure leveling I-steel (4) and the width of bottom back-pressure I-steel (5) are fixed in described lumps of wood backing plate (3) and top
Equal.
Manual digging pile construction method based on oneself's leveling backpressure device the most according to claim 7, it is characterised in that:
The length of described fixing angle steel (7) more than top fix maximum vertical between I-steel (8) and bottom back-pressure I-steel (5) away from
From and at least grow 40cm.
Manual digging pile construction method based on oneself's leveling backpressure device the most according to claim 8, it is characterised in that:
The length of described bottom back-pressure I-steel (5) is equal in magnitude with the external diameter of steel pile casting (6).
Manual digging pile construction method based on oneself's leveling backpressure device the most according to claim 9, its feature exists
In: described pre-embedded bolt connecting plate (2) is located along the same line with the center of circle of steel pile casting (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610572089.8A CN106087996B (en) | 2016-07-20 | 2016-07-20 | Manual digging pile construction method based on self leveling backpressure device |
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|---|---|---|---|
| CN201610572089.8A CN106087996B (en) | 2016-07-20 | 2016-07-20 | Manual digging pile construction method based on self leveling backpressure device |
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| CN106087996A true CN106087996A (en) | 2016-11-09 |
| CN106087996B CN106087996B (en) | 2018-05-11 |
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Cited By (3)
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| CN107083771A (en) * | 2017-06-15 | 2017-08-22 | 中铁六局集团天津铁路建设有限公司 | A kind of drilling construction method of artificial digging pile |
| CN108951614A (en) * | 2018-08-02 | 2018-12-07 | 长江勘测规划设计研究有限责任公司 | A kind of spigot-and-socket drilled pile steel pile casting and its construction method |
| CN109403953A (en) * | 2018-11-16 | 2019-03-01 | 中铁三局集团有限公司 | A kind of quick device for accurately measuring of drilling pile body verticality and method |
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| CN109403953A (en) * | 2018-11-16 | 2019-03-01 | 中铁三局集团有限公司 | A kind of quick device for accurately measuring of drilling pile body verticality and method |
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| CN106087996B (en) | 2018-05-11 |
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