CN105926621B - A kind of construction method of static pressure carrier pile - Google Patents
A kind of construction method of static pressure carrier pile Download PDFInfo
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- CN105926621B CN105926621B CN201610275071.1A CN201610275071A CN105926621B CN 105926621 B CN105926621 B CN 105926621B CN 201610275071 A CN201610275071 A CN 201610275071A CN 105926621 B CN105926621 B CN 105926621B
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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
- E02D7/20—Placing by pressure or pulling power
-
- 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
- E02D5/385—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes
-
- 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
- E02D5/44—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with enlarged footing or enlargements at the bottom of the pile
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
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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 present invention provides a kind of construction method of static pressure carrier pile, and step is：1）The grasping system of Static pressure pile driver embraces folder outer tube, intussusception inner tube in outer tube；2）Outer tube static pressure is entered to projected depth；3）Grasping system embraces folder inner tube；4）Inner tube is above put forward, fine grained filler material is inserted in the gap between inner and outer pipes, is embraced folder inner tube and is pushed filler；5）It repeats filler depression and forms carrier in stake bottom, observe end resistance pressure value；6）Make cast-in-place or implantation concrete pile body.The present invention another static pressure carrier pile construction method the step of be：1）Sink to casing；2）The grasping system of Static pressure pile driver embraces folder precast pile and sinks to casing；3）Precast pile is above carried, fine grained filler material is inserted in the gap between casing and precast pile, is embraced folder precast pile and is pushed filler；4）It repeats filler depression and forms carrier in stake bottom, observe end resistance pressure value；5）The gap of casing and precast pile with cement mortar is filled up and proposes casing pile.
Description
Technical field
The present invention relates to piling Technology more particularly to a kind of construction methods of static pressure carrier pile.
Background technology
A kind of construction technology of concrete-pile is disclosed in the document of Patent No. ZL98101041.5, its main feature is that logical
It crosses and forms artificial supporting course in the compacted grade operations of progress filling tamped of stake bottom, upper load is made to pass through concrete pile body and stake bottom
The artificial supporting course at end, is transferred on preferable supporting course, so as to improve the bearing capacity of stake.But patented technology land in use
Supervention shows some problems, such as：1. a feature of the technology for weight is carried out again after casing bottom certain distance is rammed out
Filler, which rams, to be expanded, and the depth that receipts hammer hour hammer is required to go out casing is more than 50cm, therefore is being easy disturbed soil when bearing course at pile end
When, it is this hammer into shape out casing ram mode can cause to supporting course generate compared with large disturbances, it is therefore desirable to rammer fill out more fillers,
Disturbed soil layer can be made to reach required compactness, disadvantage one is the increase in material cost, second is that amount of filler crosses conference
The destruction to adjacent stake is caused, larger quality problems occurs.2. since the grain size of the fillers such as used building waste is larger, because
Be both needed to weight proposing that casing is suitable for reading during this each filler could to complete filler, disadvantage one be weight oneself fall fall when ramming away from compared with
Greatly, energy is higher, has aggravated the disturbance to bearing course at pile end, second is that it is slow to propose that weight takes more process every time, significantly
Reduce construction efficiency.3. because gap is smaller between weight and casing, when disadvantage one is heavy tamping around it is logical without exhaust
Road can generate gas support at hammer bottom, influence hammering energy, be not still vented when being again stepped up second is that heavy tamping goes out after casing
The influence of passage can generate negative pressuren zone between hammer bottom and the soil body, not only increase and promote the required energy of weight, and vacuum is born
The presence of pressure area can also aggravate the Hui Yong of underground water, and work efficiency is reduced while increasing difficulty of construction.4. used building rubbish
The fillers such as rubbish are mostly the even new brick of removal brick, disadvantage one be the development clay brick with construction using fewer and fewer, make rammer
The cost of filler continues to increase, second is that easily causing the secondary pollution of building waste.5. the technology further includes rammer and fills out no slump concrete
Process, but the building stones in no slump concrete during heavy tamping ram powdering substantially by weight, greatly reduce
The intensity of no slump concrete.
Static pressure pile driver is the construction equipment of currently used a kind of, possesses fast speed of application, noiseless, the spy without seismaesthesia
Point, and the measured value of end resistance can be drawn immediately.But Static pressure pile driver is generally used for the construction of prefabricated pile, is applicable in model
Enclose smaller, and the stake of static pressure construction is mostly friction pile, and bearing capacity is limited.
The content of the invention
The present invention is, and it is an object of the present invention to provide a kind of construction party of static pressure carrier pile in order to solving the problem above-mentioned and propose
Method, using the static pressure function of Static pressure pile driver, by way of inserting fine grained filler the gap between outer inner tube and pushing, soon
Speed efficiently makes carrier, work progress noiseless, without seismaesthesia at stake end, and realizes the raising of work efficiency and the saving of cost.
To achieve these goals, the present invention includes a kind of construction method of static pressure carrier pile, and step is：
1）The grasping system of Static pressure pile driver embraces folder outer tube, intussusception inner tube in outer tube；
2）Precast pile tip is placed in outer pipe bottom, outer tube static pressure is entered in the soil body until projected depth；
3）It unclamps and moves up grasping system and embrace folder inner tube；
4）It embraces folder inner tube and above carries certain altitude, fine grained filler material is inserted in the feeding port of outer tube upper end, fine grained is filled out
Gap of the charge between outer tube wall and outer wall of inner tube is filled in bottom in outer tube as passage, embraces folder inner tube and pushes fine grained
Filler material jacked pile end soil layer；
5）Repeat above-mentioned steps 4）Filler and depression, gradually formed in stake bottom by reinforcing filler material and squeeze
The carrier that the close soil body is formed observes end resistance pressure value, when end resistance pressure value reaches design bearing capacity at any time in the process
It is required that when stop filler and depression；
6）Make cast-in-situ steel reinforced concrete pile body or implantation precast pile.
The step 1 of the construction method of above-mentioned static pressure carrier pile）In, the bottom lock and length of above-mentioned inner tube are more than outer tube,
The bottom end opening of outer tube and upper end are equipped with feeding port, and the outer diameter of inner tube middle and lower part is less than the internal diameter of outer tube, the caliber on inner tube top
Overstriking is simultaneously equal with the outer diameter of outer tube.
The step 4 of the construction method of above-mentioned static pressure carrier pile）In, above-mentioned fine grained filler material is mixed by cement and Sha Heshui
It closes, the maximum particle diameter of filler material is less than the gap between outer tube wall and outer wall of inner tube.
The step 4 of the construction method of above-mentioned static pressure carrier pile）In, the height that above-mentioned armful of folder inner tube above carries is less than 1.5m.
The step 6 of the construction method of above-mentioned static pressure carrier pile）In, the method for above-mentioned making cast-in-situ steel reinforced concrete pile body
It is：Outer tube, the method for above-mentioned implantation precast pile are proposed after steel reinforcement cage and concrete perfusion are sunk in outer tube after proposition inner tube
It is：After proposition outer tube and inner tube precast pile is implanted by guiding of stake holes.
To achieve these goals, present invention additionally comprises the construction method of another static pressure carrier pile, step is：
1）Using one of following a variety of methods or combination at stake position, casing is sunk into projected depth in the soil body：
1. by the movement of falling object of weight or inner tube in casing, foundation soil body is punched out, forms stake holes
Afterwards to casing is lowered by way of vibrating either static pressure or back-pressure, until projected depth；
2. by the way of static pressure either vibration or hammering, the casing with pile top is drowned into set depth；
3. by the way of static pressure either vibration or hammering, the casing of bottom end opening is sunk into pore-forming, and passes through spiral
Drill bit or soil sampler discharge the soil body in casing；
4. casing is sunk in stake holes after using auger or churning driven soil taking hole forming；
2）The grasping system of Static pressure pile driver is embraced folder precast pile and is sunk in casing；
3）It embraces folder precast pile and above carries certain altitude, insert fine grained filler material in the feeding port of casing upper end, thin
Gap of the grain filler material between casing inner wall and precast pile outer wall is filled in bottom in casing as passage, embraces folder precast pile
It pushes fine grained filler material jacked pile end soil layer；
4）Repeat above-mentioned steps 4）Filler and depression, gradually formed in stake bottom by reinforcing filler material and squeeze
The carrier that the close soil body is formed observes end resistance pressure value, when end resistance pressure value reaches design bearing capacity at any time in the process
It is required that when stop filler and depression；
5）Gap between casing inner wall and precast pile outer wall with cement mortar is filled up, proposes casing pile.
The step 2 of the construction method of above-mentioned another kind static pressure carrier pile）In, above-mentioned precast pile includes prefabricated concrete
Solid pile and hollow tubular piles of prestressed concrete, the outer diameter of precast pile is less than casing internal diameter and length is more than casing, prefabricated pile
The bottom of body is flat or add shoe.
The step 2 of the construction method of above-mentioned another kind static pressure carrier pile）In, when above-mentioned grasping system embraces folder precast pile,
Protective case is added in the outside of precast pile.
The step 3 of the construction method of above-mentioned another kind static pressure carrier pile）In, above-mentioned fine grained filler material is by cement and sand
It is formed with water mix, the maximum particle diameter of filler material is less than the gap between precast pile inner wall and casing outer wall.
The step 3 of the construction method of above-mentioned another kind static pressure carrier pile）In, the height that above-mentioned armful of folder precast pile above carries is small
In 1.5m.
The construction method of the precast concrete pile body carrier pile of the present invention, main feature and advantage are：1. utilize static pressed pile
The static pressure ability of machine, by the making stake end carrier of inner tube or precast pile static pressure filler material rapidly and efficiently, work progress is without making an uproar
Sound, without seismaesthesia.2. realizing, filler is synchronous with static pressure to carry out, and air is in the gap between inner tube or precast pile and outer tube
Passage avoids and negative pressuren zone suction is formed when promoting inner tube or precast pile, takes out pile-end soil body and underground water, meanwhile, it reduces and fills out
The grain size of reinforced material is filled, cement mixture is made smoothly to fall into casing bottom from air duct, it is not necessary to by inner tube or precast pile
It is proposed outside outer tube can filler static pressure, ensure that continual continuous static pressure greatly improves work efficiency.3. changing filler ingredient, improve and carry
Body intensity, the filler ingredient for the cement mixture inserted is the larger fine grained hydrophilic substance of specific surface area, to being sealed during construction
Close the excellent of underground water, also avoid it is original ram destruction of the process to bulky grain aggregate, while cement mixture has
Standby cementing property improves bearing capacity of pile foundation so as to significantly enhance support strength.4. the end resistance reflected by Static pressure pile driver
Pressure value can draw the compactness and bearing capacity of an end carrier immediately, without carrying out original penetration etc. again
Detection means decreases original rammer and fills out no slump concrete process, that is, ensure that construction quality saves process and improves work efficiency again.
5. precast pile can be used in two kinds of construction methods, no matter soil layer residing for pile body whether there is underground water, Muddy Bottoms, saturated soil,
Be not in the real common fault that the in situ concrete piles such as undergauge, broken pile, concrete disintegration are not easy to avoid, can significantly play stake
Hold the bearing capacity of carrier.6. the scope of application of former technical solution is significantly improved, it is applicable in various soil layers and base form.
Description of the drawings
Fig. 1 is the process chart of one embodiment of the static pressure carrier pile construction method of the present invention；Fig. 2 is the another of the present invention
The process chart of one embodiment of kind static pressure carrier pile construction method；In Fig. 1 and Fig. 2,1 embraces clipping system for Static pressure pile driver, and 2 are
Outer tube, 3 be outer tube, and 4 be fine grained filler material, and 5 be solid soil, and 6 be steel reinforcement cage, and 7 be concrete, and 8 be auger stem, and 9 are
Casing, 10 be precast pile, and 11 be cement mortar.
Specific embodiment
Below by specific embodiment, the invention will be further described.
Fig. 1 is the process chart of one embodiment of the static pressure carrier pile construction method of the present invention, first, such as a institutes in Fig. 1
Show, the grasping system 1 of Static pressure pile driver embraces folder outer tube 2, intussusception inner tube 3 in outer tube 2, the caliber overstriking on 3 top of inner tube and with outer tube 2
Outer diameter it is equal；Then, as shown in b in Fig. 1, precast pile tip is placed in 2 bottom of outer tube, 2 static pressure of outer tube is entered in the soil body until
Projected depth；Then, as shown in c in Fig. 1, unclamp and move up grasping system 1 and embrace folder inner tube 3；Then, as shown in d in Fig. 1, embrace
Folder inner tube 3 above carries certain altitude, inserts fine grained filler material 4 in the feeding port of 2 upper end of outer tube, beyond fine grained filler material 4
Gap between 3 outer wall of 2 inner wall of pipe and inner tube is filled in bottom in outer tube 2 for passage, embraces folder inner tube pushing and fills fine grained
Expect 4 jacked pile end soil layers；Then, as shown in e in Fig. 1, repeat above-mentioned filler and depression, gradually formed in stake bottom
The carrier being made of reinforcing filler material 4 and solid soil 5 observes end resistance pressure value, when end resistance pressure at any time in the process
Numerical value stops filler and depression when reaching design bearing capacity requirement；Then, as shown in f in Fig. 1, after proposition inner tube 3 outside
Steel reinforcement cage 6 is sunk in pipe 2；Finally, as shown in g in Fig. 1,2 pile of outer tube is proposed after concrete perfusion 7 in outer tube 2.
Fig. 2 is the process chart of one embodiment of another static pressure carrier pile construction method of the present invention；First, such as Fig. 2
Shown in middle a, using 8 soil taking hole forming of auger stem to projected depth；Then, as shown in b in Fig. 2, propose auger stem 8 by casing
9 sink in stake holes；Then, as shown in c in Fig. 2, the grasping system 1 of Static pressure pile driver embraces folder precast pile 10 and sinks to casing 9
In；Then, as shown in d in Fig. 2, embrace folder precast pile 10 and above carry certain altitude, thin is inserted in the feeding port of 9 upper end of casing
Grain filler material 4, gap of the fine grained filler material 4 between 10 outer wall of 9 inner wall of casing and precast pile is filled in casing 9 as passage
Interior bottom is embraced folder precast pile 10 and is pushed 4 jacked pile end soil layer of fine grained filler material；Then, as shown in e in Fig. 2, repeat into
The above-mentioned filler of row and depression, the carrier being made of reinforcing filler material 4 and solid soil 5 are gradually formed in stake bottom, herein
It observes end resistance numerical value at any time in the process, stops filler and depression when end resistance numerical value reaches design bearing capacity requirement；Then,
As shown in f in Fig. 2, the gap between 10 outer wall of 9 inner wall of casing and precast pile is filled up with cement mortar 11；Finally, such as Fig. 2
Shown in middle g, 9 pile of casing is proposed.
Above example is descriptive, and non-limiting, it is impossible to protection scope of the present invention is limited with this, upper
State it is bright on the basis of the other various forms of variations or variation amplified out, be still in the protection scope of this invention.
Claims (5)
1. a kind of construction method of static pressure carrier pile, comprises the following steps：
1）Using one of following a variety of methods or combination at stake position, casing is sunk into projected depth in the soil body：
1. by the movement of falling object of weight or inner tube in casing, foundation soil body is punched out, is led to after forming stake holes
Crossing vibration, either the mode of static pressure or back-pressure is to casing is lowered into, until projected depth；
2. by the way of static pressure either vibration or hammering, the casing with pile top is drowned into set depth；
3. by the way of static pressure either vibration or hammering, the casing of bottom end opening is drowned into projected depth, and passes through and takes
Earthenware discharges the soil body in casing；
4. casing is sunk in stake holes after using auger or churning driven soil taking hole forming；
2）The grasping system of Static pressure pile driver is embraced folder precast pile and is sunk in casing；
3）It embraces folder precast pile and above carries certain altitude, fine grained filler material is inserted in the feeding port of casing upper end, fine grained is filled out
Gap of the charge between casing inner wall and precast pile outer wall is filled in bottom in casing as passage, embraces folder precast pile and pushes
By fine grained filler material jacked pile end soil layer；
4）Repeat above-mentioned steps 3）Filler and depression, gradually formed in stake bottom by compacted fine grained filler material
The stake end carrier formed with solid soil observes end resistance numerical value, when end resistance numerical value reaches design bearing capacity at any time in the process
It is required that when stop filler and depression；
5）Gap between casing inner wall and precast pile outer wall with cement mortar is filled up, proposes casing pile.
2. the construction method of static pressure carrier pile according to claim 1, it is characterised in that above-mentioned steps 2）In, it is above-mentioned prefabricated
Pile body includes prefabricated concrete solid pile or hollow tubular piles of prestressed concrete, the outer diameter of precast pile be less than casing internal diameter and
Length is more than casing, and the bottom of precast pile is flat or add shoe.
3. the construction method of static pressure carrier pile according to claim 1, it is characterised in that above-mentioned steps 2）In, above-mentioned clamping
When system embraces folder precast pile, protective case is added in the outside of precast pile.
4. the construction method of static pressure carrier pile according to claim 1, it is characterised in that above-mentioned steps 3）In, above-mentioned thin
Grain filler material is formed by cement and sand and water mix, the maximum particle diameter of filler material be less than precast pile inner wall and casing outer wall it
Between gap.
5. the construction method of static pressure carrier pile according to claim 1, it is characterised in that above-mentioned steps 3）In, above-mentioned armful of folder
The height carried on precast pile is less than 1.5m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610275071.1A CN105926621B (en) | 2016-04-28 | 2016-04-28 | A kind of construction method of static pressure carrier pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610275071.1A CN105926621B (en) | 2016-04-28 | 2016-04-28 | A kind of construction method of static pressure carrier pile |
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| CN105926621A CN105926621A (en) | 2016-09-07 |
| CN105926621B true CN105926621B (en) | 2018-05-29 |
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| CN108978636A (en) * | 2018-08-28 | 2018-12-11 | 中冶沈勘工程技术有限公司 | A kind of compacted type shaped pile of CHARACTERISTICS OF TAILINGS SAND and its composite foundation treatment process |
| CN109098172A (en) * | 2018-09-17 | 2018-12-28 | 朱建新 | The construction method of stake |
| CN112064623A (en) * | 2020-08-07 | 2020-12-11 | 王继忠 | Construction method of carrier pile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004018663A1 (en) * | 2004-04-13 | 2005-11-03 | Klaus Prof. Dr.-Ing. Affeld | Method for pressing granular matter into lower earth layers especially for compacting support structure for piles using a periodically expanding and contracting element |
| JP2006063526A (en) * | 2004-08-24 | 2006-03-09 | Asahi Kasei Construction Materials Co Ltd | Expansive foot protection method using friction pile |
| CN102409667A (en) * | 2011-07-29 | 2012-04-11 | 张立军 | Construction device and construction process of extruded and expanded cast-in-place pile |
| CN104404956A (en) * | 2014-11-20 | 2015-03-11 | 张红 | Construction method for pedestal piles |
| CN104404958A (en) * | 2014-11-20 | 2015-03-11 | 上海智岛建筑科技有限公司 | Construction method for precast hollow pedestal piles |
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2016
- 2016-04-28 CN CN201610275071.1A patent/CN105926621B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004018663A1 (en) * | 2004-04-13 | 2005-11-03 | Klaus Prof. Dr.-Ing. Affeld | Method for pressing granular matter into lower earth layers especially for compacting support structure for piles using a periodically expanding and contracting element |
| JP2006063526A (en) * | 2004-08-24 | 2006-03-09 | Asahi Kasei Construction Materials Co Ltd | Expansive foot protection method using friction pile |
| CN102409667A (en) * | 2011-07-29 | 2012-04-11 | 张立军 | Construction device and construction process of extruded and expanded cast-in-place pile |
| CN104404956A (en) * | 2014-11-20 | 2015-03-11 | 张红 | Construction method for pedestal piles |
| CN104404958A (en) * | 2014-11-20 | 2015-03-11 | 上海智岛建筑科技有限公司 | Construction method for precast hollow pedestal piles |
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