CN114657941A - U-shaped sheet pile support construction method - Google Patents
U-shaped sheet pile support construction method Download PDFInfo
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- CN114657941A CN114657941A CN202210356645.3A CN202210356645A CN114657941A CN 114657941 A CN114657941 A CN 114657941A CN 202210356645 A CN202210356645 A CN 202210356645A CN 114657941 A CN114657941 A CN 114657941A
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- 238000010276 construction Methods 0.000 title claims abstract description 108
- 238000000034 method Methods 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000005452 bending Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 238000003908 quality control method Methods 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 4
- 238000005527 soil sampling Methods 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 238000004873 anchoring Methods 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- 238000010008 shearing Methods 0.000 abstract description 3
- 238000009417 prefabrication Methods 0.000 abstract description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
- E02B3/066—Quays
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/04—Guide devices; Guide frames
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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
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/10—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete
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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
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/10—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete
- E02D5/105—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete of prestressed concrete
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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
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/10—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete
- E02D5/12—Locking forms; Edge joints; Pile crossings; Branch pieces
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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
- E02D7/18—Placing by vibrating
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a construction method for supporting a U-shaped sheet pile, which comprises the steps of customizing and transporting the sheet pile, measuring and rechecking a construction base line, leveling a field, constructing a positioning pile, sinking the sheet pile and clamping the pile; the sheet pile with the U-shaped cross section has good bending resistance and shearing resistance, the construction period can be greatly shortened by adopting a customized prefabrication method, the construction speed is obviously improved, the construction quality is ensured, the structural design is flexible, the reinforcing bars, the pile length, the length and the number of the anchoring bars, the water stop bars and the like of the U-shaped sheet pile can be adjusted according to the requirements of actual engineering, the pile can be flexibly assembled, the combination of single sheet piles is tight through the design of the male and female tenons, the pile sinking guide frame is erected, when a construction site with complicated geological conditions is met, the pile sinking can be effectively assisted by adopting an auxiliary pre-hole forming mode, meanwhile, the sheet pile can also be used as a supporting pile, the construction site area is reduced, and the comprehensive construction cost of the engineering is reduced.
Description
Technical Field
The invention relates to the technical field of sheet pile construction, in particular to a U-shaped sheet pile support construction method.
Background
The pre-tensioned U-shaped prestressed concrete sheet pile is called 'U-shaped sheet pile' for short, is a novel prefabricated concrete component for industrial production and on-site pile sinking, has the advantages of large retaining cross section, excellent stress performance, high construction speed, good pile forming quality, good durability, small influence on the surrounding environment and the like, is suitable for various geological conditions and construction site environments, and is mainly applied to the projects of riverways, flood drainage channels, navigation channels, ports, docks, municipal works and the like as revetments or retaining slope protection structures.
The conventional steel sheet pile and common reinforced concrete slab have poor durability, small cross-sectional area, poor mechanical property, more construction procedures of cast-in-place pile, long construction period, great influence on the surrounding environment, great influence on the construction quality by factors such as geological conditions, construction process and the like, and high comprehensive cost. Therefore, the invention provides a U-shaped sheet pile supporting construction method to solve the problems in the prior art.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a U-shaped sheet pile support construction method, in which a sheet pile with a U-shaped cross section has good bending and shearing resistance, and the reinforcing bars, pile length, length and number of anchoring bars, and water stop bars of the U-shaped sheet pile can be adjusted according to the requirements of actual engineering, so that pile can be flexibly configured, and pile sinking can be effectively assisted by using an auxiliary pre-hole-forming manner when a construction site with complex geological conditions is encountered.
In order to realize the purpose of the invention, the invention is realized by the following technical scheme: a U-shaped sheet pile support construction method comprises the following steps:
step one, customizing and transporting sheet piles, wherein the sheet piles are customized according to design requirements, male and female tenons are reserved on two sides of each sheet pile, and a U-shaped sheet pile with an oblique angle is arranged on one side of the male tenon at the pile end;
secondly, measuring a construction baseline, rechecking a measurement control baseline and a baseline point of a construction site before pile sinking construction, carrying out the guided measurement of a construction plane coordinate control point and an elevation reference point according to the construction site, and then carrying out the setting-out of the pile sinking construction baseline;
thirdly, according to the pile sinking quality control requirement, carrying out leveling treatment on the site of the construction site, and driving a positioning pile;
and step four, arranging a pile sinking guide frame at the position of the positioning pile along the pile sinking construction direction, adopting a unidirectional single-direction sequential driving mode, carrying out pile sinking construction on the qualified checked and accepted U-shaped plate pile by means of the auxiliary of the pile sinking guide frame and utilizing construction equipment and a vibration hammer, adopting an auxiliary forming process to assist construction according to the geological condition of the stratum during construction, and immediately carrying out pile clamping treatment by utilizing pile clamping equipment after the construction is finished.
The further improvement lies in that: in the first step, the difference value of the two opposite sides of the cross section is required to be less than 5mm, the deviation value of the male tenon and the female tenon is required to be +/-3 mm, the deviation value of the thickness of the protective layer is required to be +/-5 mm, the axial displacement of the pile tip to the pile is less than 10mm, and the bending rise of the pile body is less than or equal to 0.1% of the length of the pile and less than or equal to 10 mm.
The further improvement lies in that: and in the fourth step, after the positioning pile is sunk to the designed elevation, inserting the tenon sleeve of the next U-shaped plate pile one by one and sinking the pile to the designed elevation at one time, aligning and splicing the male tenon of one group of U-shaped plate piles and the female tenon of the other group of U-shaped plate piles when two adjacent groups of U-shaped plate piles are sunk, and taking control measures on the axis, the perpendicularity and the elevation deviation of the positioning pile when the pile is sunk.
The further improvement lies in that: the axis deviation control measure is that the deviation between the axis of the pile sinking guide frame and the axis of the rechecked pile foundation is smaller than 20mm when the pile sinking guide frame is arranged, and meanwhile, pile clamping equipment is checked and adjusted at any time in the pile sinking construction process to adjust the axis deviation of the pile foundation.
The further improvement lies in that: and the verticality deviation control measure is that a theodolite measuring instrument is adopted to correct and monitor the verticality of the pile body and is stopped and adjusted in time during the period from the beginning of pile sinking to 2m of entering soil, the U-shaped plate pile is pulled out when the pile is sunk when underground buried objects are met, and the pile is sunk again after obstacles are cleared.
The further improvement lies in that: the elevation deviation control measures are that the deviation of the pile top is controlled to be +/-50 mm according to the designed elevation position, and when the U-shaped sheet pile is sunk to be close to the designed elevation position, the frequency and the force of the parameter control vibration hammer of the construction equipment are adjusted.
The further improvement lies in that: the auxiliary forming process in the fourth step comprises a high-pressure water jetting hole forming process, a steel sheet pile pre-hole forming process and an auger drilling soil sampling process for auxiliary pre-hole forming, wherein the construction equipment in the fourth step adopts one of a crawler crane, a mast type pile machine, a self-walking type pile machine, a pile driver and a pontoon crawler crane, and the vibration hammer adopts one of an electric vibration hammer and a hydraulic vibration hammer.
The further improvement lies in that: step four pile clamping equipment set up in pile sinking leading truck top, including shaped steel leading truck, fixed rigging, connecting cable, guide way, commentaries on classics roller frame and sheet pile protection roller, the symmetry is equipped with fixed tool to lock on the shaped steel leading truck, be equipped with the commentaries on classics roller frame through the connecting cable on the fixed tool to lock, be equipped with the guide way on the shaped steel leading truck, commentaries on classics roller frame and guide way slip adaptation, commentaries on classics roller frame inboard is equipped with sheet pile protection roller.
The further improvement lies in that: the fixing riggings are arranged in two groups, the two groups of fixing riggings operate synchronously, and the sheet pile protection rollers are arranged in two groups from top to bottom.
The invention has the beneficial effects that: the sheet pile with the U-shaped cross section has good bending resistance and shearing resistance, the construction period can be greatly shortened by adopting a customized prefabrication method, the construction speed is obviously improved, the construction quality is ensured, the structural design is flexible, the reinforcing bars, the pile length, the length and the number of the anchoring bars, the water stop bars and the like of the U-shaped sheet pile can be adjusted according to the requirements of actual engineering, the pile can be flexibly arranged, the combination of single sheet piles is tight through the design of the male and female tenons, the pile sinking guide frame is erected, when a construction site with complex geological conditions is met, the pile sinking can be effectively assisted by adopting an auxiliary pre-hole forming mode, meanwhile, the sheet pile can also be used as a supporting pile, the construction site area is reduced, and the comprehensive construction cost of the engineering is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flow chart of pile sinking according to an embodiment of the present invention.
Fig. 2 is a structural diagram of a pile sinking guide frame and pile clamping equipment according to an embodiment of the invention.
Wherein: 1. a section steel guide frame; 2. fixing a rigging; 3. a connecting cable; 4. a guide groove; 5. a roller frame; 6. sheet pile protection roller.
Detailed Description
In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
Example one
According to fig. 1 and 2, the embodiment provides a U-shaped sheet pile support construction method, which comprises the following steps:
step one, customizing and transporting sheet piles, wherein the sheet piles are customized according to design requirements, male and female tenons are reserved on two sides of each sheet pile, and a U-shaped sheet pile with an oblique angle is arranged on one side of the male tenon at the pile end;
the design requires that the difference value of the two opposite sides of the cross section is less than 5mm, the deviation value of the male and female tenons is +/-3 mm, the deviation value of the thickness of the protective layer is +/-5 mm, the axial displacement of the pile tip to the pile is less than 10mm, and the bending rise of the pile body is less than or equal to 0.1% of the pile length and less than or equal to 10mm
Secondly, measuring a construction baseline, rechecking a measurement control baseline and a baseline point of a construction site before pile sinking construction, carrying out the guided measurement of a construction plane coordinate control point and an elevation reference point according to the construction site, and then carrying out the setting-out of the pile sinking construction baseline;
thirdly, according to the pile sinking quality control requirement, carrying out leveling treatment on the site of the construction site, and driving a positioning pile;
step four, arranging a pile sinking guide frame at the position of the positioning pile along the pile sinking construction direction, adopting a unidirectional single-pile sequential driving mode, carrying out pile sinking construction on the qualified checked and accepted U-shaped plate pile by the aid of the pile sinking guide frame and by means of construction equipment and a vibration hammer, adopting an auxiliary forming process to assist construction according to the geological condition of the stratum during construction, and immediately carrying out pile clamping treatment by pile clamping equipment after the construction is finished;
after the positioning piles are sunk to the designed elevation, the tenon sleeves of the next U-shaped plate pile are inserted one by one and are sunk to the designed elevation, when two adjacent groups of U-shaped plate piles are sunk, the male tenons of one group of U-shaped plate piles and the female tenons of the other group of U-shaped plate piles are aligned and spliced to carry out construction, and when the piles are sunk, control measures are needed to be taken for the axis, the perpendicularity and the elevation deviation of the piles.
The axis deviation control measure is that the deviation between the axis of the pile sinking guide frame and the axis of the rechecked pile foundation is smaller than 20mm when the pile sinking guide frame is arranged, and meanwhile, pile clamping equipment is checked and adjusted at any time in the pile sinking construction process to adjust the axis deviation of the pile foundation.
And the verticality deviation control measure is that a theodolite measuring instrument is adopted to correct and monitor the verticality of the pile body and is stopped and adjusted in time during the period from the beginning of pile sinking to 2m of entering soil, the U-shaped plate pile is pulled out when the pile is sunk when underground buried objects are met, and the pile is sunk again after obstacles are cleared.
The elevation deviation control measures are that the deviation of the pile top is controlled to be +/-50 mm according to the designed elevation position, and when the U-shaped sheet pile is sunk to be close to the designed elevation position, the frequency and the force of the parameter control vibration hammer of the construction equipment are adjusted.
The auxiliary forming process comprises a high-pressure water jetting hole forming process, a steel sheet pile pre-hole forming process and an auger drilling soil sampling process for auxiliary pre-hole forming, the construction equipment adopts one of a crawler crane, a mast type pile machine, a self-walking type pile machine, a pile driver and a floating pontoon crawler crane, and the vibration hammer adopts one of an electric vibration hammer and a hydraulic vibration hammer.
Step four pile clamping equipment set up in pile sinking leading truck top, including shaped steel leading truck 1, fixed rigging 2, connecting cable 3, guide way 4, commentaries on classics roller frame 5 and sheet pile protection roller 6, the symmetry is equipped with fixed tool to lock on the shaped steel leading truck 1, be equipped with commentaries on classics roller frame 5 through connecting cable 3 on the fixed tool to lock, be equipped with guide way 4 on the shaped steel leading truck 1, commentaries on classics roller frame 5 and 4 sliding adaptation of guide way, 5 inboards of commentaries on classics roller frame are equipped with sheet pile protection roller 6.
The fixed rigging 2 is provided with two sets, two sets of the fixed rigging 2 operate synchronously, and two sets of the sheet pile protection rollers 6 are arranged up and down.
Example two
According to fig. 1 and 2, the embodiment provides a U-shaped sheet pile support construction method, which comprises the following steps:
customizing and transporting sheet piles, wherein a U-shaped sheet pile with male and female tenons at two sides and an oblique angle at one side of the male and female tenons at the pile end is customized according to design requirements, so that foundation force can generate pushing force on the oblique plane when the sheet pile is driven, the sheet pile driven later can be tightly leaned against the driven sheet pile, the sheet pile is transported to a construction site for acceptance after production, and the sheet pile is lifted, transported and stacked by light lifting and light releasing, tightly thrown, collided and rolled, and kept stable in the lifting process;
the hollow water-stopping adhesive tape can also be used as a grouting channel, cement slurry is poured after forming, and the water-stopping function and the forming effect of the groove-tongue joint are ensured;
the design requires that the difference value of two opposite sides of the cross section is less than 5mm, the deviation value of the male and female tenons is +/-3 mm, the deviation value of the thickness of the protective layer is +/-5 mm, the axial displacement of the pile tip to the pile is less than 10mm, and the bending rise of the pile body is less than or equal to 0.1% of the pile length and less than or equal to 10 mm;
secondly, measuring a construction baseline, rechecking a measurement control baseline and a baseline point of a construction site before pile sinking construction, carrying out the guided measurement of a construction plane coordinate control point and an elevation reference point according to the construction site, and then carrying out the setting-out of the pile sinking construction baseline;
thirdly, according to pile sinking quality control requirements, carrying out leveling treatment on a field of a construction site, driving positioning piles, and constructing the U-shaped sheet pile in the ground and on water by adopting methods such as a hammering method, a vibration method and the like;
step four, arranging a pile sinking guide frame at the position of the positioning pile along the pile sinking construction direction, adopting a unidirectional single-direction sequential driving mode, carrying out pile sinking construction on the qualified U-shaped plate pile by virtue of the auxiliary pile sinking guide frame and utilizing construction equipment and a vibration hammer, adopting an auxiliary forming process to assist construction according to the geological condition of the stratum during construction, keeping the pile hammer and the pile on the same axis during pile sinking, and immediately carrying out pile clamping treatment by utilizing pile clamping equipment after the construction is finished;
after the positioning piles are sunk to the designed elevation, the tenon sleeves of the next U-shaped plate pile are inserted one by one and are sunk to the designed elevation, when two adjacent groups of U-shaped plate piles are sunk, the male tenons of one group of U-shaped plate piles and the female tenons of the other group of U-shaped plate piles are aligned and spliced to carry out construction, and when the piles are sunk, control measures are needed to be taken for the axis, the perpendicularity and the elevation deviation of the piles.
The axis deviation control measure is that the deviation between the axis of the pile sinking guide frame and the axis of the rechecked pile foundation is smaller than 20mm when the pile sinking guide frame is arranged, and meanwhile, pile clamping equipment is checked and adjusted at any time in the pile sinking construction process, the deviation of the axis of the pile foundation is adjusted, and the plate pile is prevented from tenoning.
The perpendicularity deviation control measure is that a theodolite measuring instrument is adopted to correct and monitor the perpendicularity of the pile body and stop the machine for adjustment in time from the beginning of pile sinking to 2m of entering the soil, the U-shaped plate pile is pulled out when the pile is sunk when meeting underground buried objects, and the pile is sunk again after the obstacles are cleared; when the pile body is seriously inclined, the pile is pulled out, and the pile can be sunk again after being positioned by the steel pile.
The elevation deviation control measures are that the deviation of the pile top is controlled to be +/-50 mm according to the designed elevation position, and when the U-shaped sheet pile is sunk to be close to the designed elevation position, the frequency and the force of the parameter control vibration hammer of the construction equipment are adjusted.
Tolerance of U-shaped sheet pile sinking:
the allowable deviation of the plane position perpendicular to the axial direction of the U-shaped sheet pile wall is +/-50 mm;
the allowed deviation of the perpendicularity in the direction perpendicular to the axis of the sheet pile wall is 1.0 percent;
the allowable deviation of the verticality along the axial direction of the sheet pile wall is 1.5 percent;
the allowable deviation of the pile top elevation is +/-50 mm;
the allowable deviation of the seam width between the plate seams is 25 mm.
The auxiliary forming process comprises a high-pressure water jetting hole forming process, a steel sheet pile pre-hole forming process and an auger drilling soil sampling process for auxiliary pre-hole forming, the construction equipment adopts one of a crawler crane, a mast type pile machine, a self-walking type pile machine, a pile driver and a floating pontoon crawler crane, and the vibration hammer adopts one of an electric vibration hammer and a hydraulic vibration hammer.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A U-shaped sheet pile support construction method is characterized by comprising the following steps:
step one, customizing and transporting sheet piles, namely customizing sheet piles according to design requirements, reserving male and female tenons on two sides of each sheet pile, enabling one side of the male tenon at the pile end to be a U-shaped sheet pile with an oblique angle, and transporting the sheet piles to a construction site for inspection and acceptance after production;
secondly, measuring a construction baseline, rechecking a measurement control baseline and a baseline point of a construction site before pile sinking construction, carrying out the guided measurement of a construction plane coordinate control point and an elevation reference point according to the construction site, and then carrying out the setting-out of the pile sinking construction baseline;
thirdly, according to the pile sinking quality control requirement, carrying out leveling treatment on the site of the construction site, and driving a positioning pile;
and fourthly, arranging a pile sinking guide frame at the position of the positioning pile along the pile sinking construction direction, adopting a unidirectional single-direction sequential driving mode, carrying out pile sinking construction on the qualified U-shaped sheet pile by using construction equipment and a vibration hammer with the aid of the pile sinking guide frame, adopting an auxiliary forming process for auxiliary construction according to the geological condition of the stratum during construction, and immediately carrying out pile clamping treatment by using pile clamping equipment after the construction is finished.
2. A U-shaped sheet pile support construction method according to claim 1, wherein: in the first step, the difference value of the two opposite sides of the cross section is required to be less than 5mm, the deviation value of the male tenon and the female tenon is required to be +/-3 mm, the deviation value of the thickness of the protective layer is required to be +/-5 mm, the axial displacement of the pile tip to the pile is less than 10mm, and the bending rise of the pile body is less than or equal to 0.1% of the length of the pile and less than or equal to 10 mm.
3. A U-shaped sheet pile support construction method according to claim 1, wherein: and after the positioning piles are sunk to the designed elevation in the fourth step, inserting the next U-shaped sheet pile sleeve tenon one by one and sinking the pile to the designed elevation position at one time, wherein the male tenon of one group of U-shaped sheet piles and the female tenon of the other group of U-shaped sheet piles are required to be aligned and spliced for construction when two adjacent groups of U-shaped sheet piles are sunk, and control measures are required to be taken for the axis, the verticality and the elevation deviation of the positioning piles during pile sinking.
4. A U-shaped sheet pile support construction method according to claim 3, wherein: the axis deviation control measure is that the deviation between the axis of the pile sinking guide frame and the axis of the rechecked pile foundation is smaller than 20mm when the pile sinking guide frame is arranged, and meanwhile, pile clamping equipment is checked and adjusted at any time in the pile sinking construction process to adjust the axis deviation of the pile foundation.
5. A U-shaped sheet pile support construction method according to claim 3, wherein: and the verticality deviation control measure is that a theodolite measuring instrument is adopted to correct and monitor the verticality of the pile body and is stopped and adjusted in time during the period from the beginning of pile sinking to 2m of entering soil, the U-shaped plate pile is pulled out when the pile is sunk when underground buried objects are met, and the pile is sunk again after obstacles are cleared.
6. A U-shaped sheet pile support construction method according to claim 3, wherein: the elevation deviation control measures are that the deviation of the pile top is controlled to be +/-50 mm according to the designed elevation position, and when the U-shaped sheet pile is sunk to be close to the designed elevation position, the frequency and the force of the parameter control vibration hammer of the construction equipment are adjusted.
7. A U-shaped sheet pile support construction method according to claim 1, wherein: the auxiliary forming process in the fourth step comprises a high-pressure water jetting hole forming process, a steel sheet pile pre-forming hole process and an auger drilling soil sampling process for auxiliary pre-forming holes, wherein the construction equipment in the fourth step adopts one of a crawler crane, a mast type pile machine, a self-walking type pile machine, a pile driving boat and a floating boat crawler crane, and the vibration hammer adopts one of an electric vibration hammer and a hydraulic vibration hammer.
8. A U-shaped sheet pile support construction method according to claim 1, wherein: step four pile clamping equipment set up in pile sinking leading truck top, including shaped steel leading truck (1), fixed rigging (2), connecting cable (3), guide way (4), commentaries on classics roller frame (5) and sheet pile protection roller (6), the symmetry is equipped with fixed tool to lock on shaped steel leading truck (1), be equipped with commentaries on classics roller frame (5) through connecting cable (3) on the fixed tool to lock, be equipped with guide way (4) on shaped steel leading truck (1), commentaries on classics roller frame (5) and guide way (4) slip adaptation, commentaries on classics roller frame (5) inboard is equipped with sheet pile protection roller (6).
9. A U-shaped sheet pile support construction method according to claim 8, wherein: the fixing riggings (2) are arranged in two groups, the two groups of fixing riggings (2) operate synchronously, and the sheet pile protection rollers (6) are arranged in two groups from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210356645.3A CN114657941A (en) | 2022-04-06 | 2022-04-06 | U-shaped sheet pile support construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210356645.3A CN114657941A (en) | 2022-04-06 | 2022-04-06 | U-shaped sheet pile support construction method |
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| CN114657941A true CN114657941A (en) | 2022-06-24 |
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| CN202210356645.3A Pending CN114657941A (en) | 2022-04-06 | 2022-04-06 | U-shaped sheet pile support construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116905494A (en) * | 2023-09-11 | 2023-10-20 | 中交第一航务工程局有限公司 | Guiding device for positioning sheet piles in channel revetment and construction method |
| CN117947772A (en) * | 2024-03-27 | 2024-04-30 | 中交第四航务工程局有限公司 | Pile sinking method for combined steel sheet pile and vibrating hammer thereof |
| CN117947772B (en) * | 2024-03-27 | 2024-06-04 | 中交第四航务工程局有限公司 | Pile sinking method for combined steel sheet pile and vibrating hammer thereof |
-
2022
- 2022-04-06 CN CN202210356645.3A patent/CN114657941A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116905494A (en) * | 2023-09-11 | 2023-10-20 | 中交第一航务工程局有限公司 | Guiding device for positioning sheet piles in channel revetment and construction method |
| CN117947772A (en) * | 2024-03-27 | 2024-04-30 | 中交第四航务工程局有限公司 | Pile sinking method for combined steel sheet pile and vibrating hammer thereof |
| CN117947772B (en) * | 2024-03-27 | 2024-06-04 | 中交第四航务工程局有限公司 | Pile sinking method for combined steel sheet pile and vibrating hammer thereof |
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