CN109778839A - Construction system and construction method for the closely knit cobble coating steel-pipe pile of deep water - Google Patents
Construction system and construction method for the closely knit cobble coating steel-pipe pile of deep water Download PDFInfo
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- CN109778839A CN109778839A CN201910204279.8A CN201910204279A CN109778839A CN 109778839 A CN109778839 A CN 109778839A CN 201910204279 A CN201910204279 A CN 201910204279A CN 109778839 A CN109778839 A CN 109778839A
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Abstract
The invention discloses a kind of construction system and construction method for the closely knit cobble coating steel-pipe pile of deep water, the construction method based on construction system includes the following steps: that (1) Waterborne movable operation platform installs anchor, locating guide device；(2) hydraulic impact hammer, hydraulic vibration driver are lifted to Waterborne movable operation platform；(3) it casts anchor and makes the center of locating guide device and design the deviation of stake position less than 50cm；(4) it adjusts locating guide device and and designs the deviation of stake position less than 5cm；(5) steel-pipe pile is hung in locating guide device, then lifts by crane the heavy steel-pipe pile of hydraulic vibration driver vibration to closely knit cobble surface layer；(6) hydraulic impact hammer is lifted, so that steel-pipe pile is passed through closely knit cobble geology by continuously hammering；(7) Waterborne movable operation platform is moved to next position after the completion of single pile construction.The present invention, it is pollution-free to construction waters, greatly improve the pile efficiency and construction quality of steel-pipe pile under the conditions of deep water closely knit cobble coating.
Description
Technical field
The invention belongs to steel trestle technical field of construction, in particular to a kind of to be used for the closely knit cobble coating steel-pipe pile of deep water
Construction system and construction method.
Background technique
Under silt coating and muck soil geology, steel pipe pile driving construction generally relies on steel bracket platform or molded stack more
Bridge makes its liquefaction sink again using loop wheel machine and the hydraulic vibration driver clamping steel-pipe pile vibration soil body；In coating containing cobble, shallow covering
Layer or naked rock geology, steel pipe pile driving construction rely on operation platform for over-water construction, using steel pile casting as auxiliary guiding facility, using rotary digging
Drilling machine or percussive drill carry out pilot hole or hole milling, then in place using hydraulic vibration driver vibration-sunk steel-pipe pile, in last steel-pipe pile
Concrete perfusion is to guarantee that steel-pipe pile is anchored in riverbed.
For example, bridge site area riverbed contains closely knit cobble coating, average thickness in Suining rural area road network one phase ship mountain section D1 bid section
Degree reaches 3m, and cobble content is greater than 65%, and partial size is generally 5-10cm, is saturated closely knit shape.Such as use hydraulic vibration in the prior art
Dynamic hammer construction, steel-pipe pile can not pass through closely knit boulder bed under being acted on by exciting power, can not be successfully and sink down into design altitude；As used
Rotary drilling rig pilot hole or percussive drill hole milling construction, need more steel pile casting to carry out auxiliary construction, steel input amount is big, cost
Height, construction efficiency is low, and the construction period is long, and it is at high cost that underwater concrete construction is poured into steel-pipe pile.In addition, bridge site is located at Samsung pivot
In knob reservoir area, upstream and downstream has power station, and large ship can not drive into.
Summary of the invention
For the technical problems in the prior art, the present invention provides a kind of for the closely knit cobble coating steel pipe of deep water
The construction system and construction method of stake, can effectively improve steel pipe pile driving construction precision, while guaranteeing verticality and pile penetration,
Ensure single pile bearing capacity.Maximumlly improve construction quality and working efficiency, it is ensured that construction quality and construction speed.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of construction system for the closely knit cobble coating steel-pipe pile of deep water, covers cobble class weathering on deep water reservoir area
Rock geology, including
Waterborne movable operation platform which is provided with hydraulic vibration driver, hydraulic impact hammer and hoisting machinery；
Anchor is set to Waterborne movable operation platform surrounding, and Waterborne movable operation platform is anchored at construction area
Domain；
Locating guide device is fixed on Waterborne movable operation platform, to be positioned and be oriented to steel-pipe pile.
Preferably, the Waterborne movable operation platform forms concave character type structure, concave character type knot by single small buoyancy tank spelling
Structure is used for steel pipe pile driving construction, so that center of gravity is kept balance to guarantee that Waterborne movable operation platform is stablized.
Preferably, the anchor, which is included in Waterborne movable operation platform trailing end cross, is arranged two groups, front end is oblique
It is arranged two groups, flank is respectively arranged one group, moves operation platform movement on the water and construction period is anchored fixation.
Preferably, anchor described in every group includes hoist engine, wirerope, roller bearing and Hall'sanchor, the hoist engine
Setting is moved on operation platform on the water, and the roller bearing being arranged by steel wire penetrating Waterborne movable operation platform edge is simultaneously connected to
Hall'sanchor.
Preferably, the locating guide device includes longitudinal bottom susceptor, lateral bottom susceptor, vertical reinforced bar, vertically puts down
Connection and connection frame, two longitudinal bottom susceptors are parallel to each other and longitudinally disposed along Waterborne movable operation platform, two cross
It is parallel to each other to bottom susceptor and be laterally arranged along Waterborne movable operation platform, and the lateral bottom susceptor is located at longitudinal bottom susceptor
Top, and square crossing and by connection frame connect, it is described longitudinal direction bottom susceptor and Waterborne movable operation platform by locating rack company
It connects, the vertical reinforced bar is connect by connection frame and vertical lateral with lateral bottom susceptor.
Preferably, the connection frame includes fixing steel plate, stiffened steel plates and pin shaft, two stiffened steel plates are opposite in parallel to be set
It sets and with fixing steel plate vertical welding, the pin shaft wears two fixing steel plates positioned at two sides, is connected with passing through connection frame
Longitudinal bottom susceptor and Waterborne movable operation platform or longitudinal bottom susceptor and lateral bottom susceptor.
Preferably, the relatively transverse bottom susceptor of vertical reinforced bar is angularly disposed, and vertical reinforced bar is set as four,
Four vertical reinforced bars are located at a square quadrangle.
Preferably, being provided with adjustment structure on the vertical reinforced bar, the adjustment structure includes adjusting screw rod and tune
Nut is saved, the side welding of the adjusting nut and vertical reinforced bar, the vertical reinforced bar is equipped with coaxial with adjusting nut
The adjusting threaded hole of the heart, to wear adjusting screw rod.
Preferably, the longitudinal direction bottom susceptor, lateral bottom susceptor and vertical reinforced bar are welded side by side by two I-steel
It forms.
A kind of construction method for the closely knit cobble coating steel-pipe pile of deep water, includes the following steps:
(1) small buoyancy tank group is combined into Waterborne movable operation platform, moves on operation platform and installs on the water after the completion of spelling
Anchor, locating guide device, generator and guard rail；
(2) hoisting machinery is travelled to Waterborne movable operation platform, and hydraulic impact hammer, hydraulic vibration driver etc. are lifted to water
On upper mobile operation platform, Waterborne movable operation platform is then consigned to point to be onstructed by Power Vessel；
(3) hoist engine of anchor is cast anchor and adjusts, to anchor fixed Waterborne movable operation platform；Then setting-out is tapped
Pipe pile position, then hoist engine is adjusted, make the center and design stake position of the locating guide device of Waterborne movable operation platform
Deviation control within 50cm；
(4) setting-out tapping pipe pile position, the longitudinal bottom susceptor of adjustment make locating guide device and design the deviation control of stake position again
System fixes locating guide device within 5cm；
(5) steel-pipe pile carries out spreading on the coast, and single stake total length is not less than designing pile length, and at stake bottom, spreading, stake
The positions such as top are reinforced, and are then delivered to construction point by cargo ship；Steel-pipe pile is hung in positioning and guiding dress by hoisting machinery
In setting, the adjusting screw rod at the top of locating guide device is adjusted, makes the verticality of steel-pipe pile less than 1%；Lift by crane hydraulic vibration driver, vibration
Heavy steel-pipe pile passes through riverbed surface muck soil and partial loose cobble coating；
(6) hydraulic impact hammer is lifted by hoisting machinery, according to geological condition, controls height of the fall and impact speed, steel
Cobble is smashed or directly by boulder bed by the temporary impact energy that tubular pole is applied by hydraulic impact hammer, realize steel-pipe pile at
Stake；Impact sinking watching makes the verticality of steel-pipe pile less than 1% by adjusting the adjusting screw rod at the top of locating guide device；
(7) single pile construction is completed, and hoisting machinery temporarily hangs locating guide device, then makes water by adjusting anchor
Upper mobile operation platform is moved to next position, and repeat the above steps construction.
Compared with prior art, the present invention has the beneficial effects that the present invention is cleared without boring mud, to urban river water without dirt
Dye, noise is small, and can improve the pile efficiency and construction quality of steel-pipe pile under the conditions of deep water closely knit cobble coating.
Detailed description of the invention
Fig. 1 is the Waterborne movable operation platform in the present invention for the construction system of the closely knit cobble coating steel-pipe pile of deep water
And anchor line arrangement schematic diagram；
Fig. 2 is the use state front view structure in the present invention for the construction system of the closely knit cobble coating steel-pipe pile of deep water
Schematic diagram；
Fig. 3 is the vertical view knot in the present invention for the use state of the construction system of the closely knit cobble coating steel-pipe pile of deep water
Structure schematic diagram；
Fig. 4 is the master in the present invention for the locating guide device of the construction system of the closely knit cobble coating steel-pipe pile of deep water
Depending on structural schematic diagram；
Fig. 5 is bowing for the locating guide device of the construction system of the closely knit cobble coating steel-pipe pile of deep water in the present invention
Depending on structural schematic diagram；
Fig. 6 is in the present invention for the perpendicular of the locating guide device of the construction system of the closely knit cobble coating steel-pipe pile of deep water
To the structural schematic diagram of reinforcing rod.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, in the following with reference to the drawings and specific embodiments
It elaborates to the present invention.
As shown in Figures 1 to 6, the main bridge of the grand bridge of the embodiment of the present invention is across the variable cross-section company of (102+170+102) m tri-
Continuous rigid frame bridge, the river stream of big spanning about 300m wide, bosom depth of water 18m, bridge site area Riverbed is closely knit cobble, with a thickness of
2.2m~5.5m.To assist main bridge construction, a steel trestle based on steel tube pile embeded in rock is built, 125 steel-pipe piles are amounted to.
This example discloses a kind of construction system for the closely knit cobble coating steel-pipe pile of deep water, including Waterborne movable is applied
Work platform 1 is assembled into 19m × 15m U shape knot using five section 16m × 3m × 2m and the small buoyancy tank of a section 11m × 3m × 2m
Structure, concave character type structure are used for steel pipe pile driving construction, so that center of gravity is kept balance to guarantee that Waterborne movable operation platform 1 is stablized.Shifting waterborne
Dynamic operation platform 1 is equipped with hydraulic vibration driver, hydraulic impact hammer 4 and hoisting machinery 6, and wherein the traveling of hoisting machinery 6 is moved on the water
The center of dynamic operation platform 1.Construction system further includes anchor 2 and locating guide device 3, and anchor 2 is set to shifting waterborne
Dynamic 1 four jiaos of operation platform, and Waterborne movable operation platform 1 is anchored at construction area.Mobile construction is flat on the water for anchor 2
1 trailing end cross of platform is arranged two groups, and angularly disposed two groups of front end, flank is respectively arranged one group, move on the water operation platform 1 it is mobile and
Construction period is anchored.Every group of anchor 2 includes hoist engine, wirerope, roller bearing and Hall'sanchor, and hoist engine is arranged in water
On upper mobile operation platform 1, by 1 edge of steel wire penetrating Waterborne movable operation platform be arranged roller bearing and be connected to Hall
Anchor.Locating guide device 3 is fixed on Waterborne movable operation platform 1, steel-pipe pile 5 is positioned and is oriented to, realizes steel pipe
The accurate positioning of stake and degree control, prevent run-off the straight or deviation in steel-pipe pile penetration process.
In the present embodiment, locating guide device includes longitudinal bottom susceptor 31, lateral bottom susceptor 32, vertical reinforced bar 37, erects
To lateral 36 and connection frame, two longitudinal bottom susceptors 31 are parallel to each other and longitudinally disposed along Waterborne movable operation platform 1, two cross
It is parallel to each other to bottom susceptor 32 and along the laterally setting of Waterborne movable operation platform 1, and lateral bottom susceptor 32 is located at longitudinal bottom susceptor
31 top, and square crossing and connected by connection frame, longitudinal bottom susceptor 31 passes through locating rack with Waterborne movable operation platform 1
Connection, vertical reinforced bar 37 are connect by connection frame and vertical lateral 36 with lateral bottom susceptor 32.
In the present embodiment, connection frame includes fixing steel plate 33, stiffened steel plates 34 and pin shaft 35, and two stiffened steel plates 34 are parallel
It is oppositely arranged and with fixing steel plate vertical welding, fixing steel plate 33 is used for and Waterborne movable operation platform 1 or longitudinal bottom susceptor
The welding of 31 phases, pin shaft 35 wear two fixing steel plates 33 positioned at two sides, to connect longitudinal bottom susceptor 31 and water by connection frame
Upper mobile operation platform 1 or longitudinal bottom susceptor 31 and lateral bottom susceptor 32, lateral bottom susceptor 32 is equipped with hole, for wearing pin
Axis 35.
In the present embodiment, the relatively transverse bottom susceptor 32 of vertical reinforced bar 37 is angularly disposed, and vertical reinforced bar 37 is set as
Four, four vertical reinforced bars 37 are located at a square quadrangle.It is provided with adjustment structure on vertical reinforced bar 37, is used for
Verticality is adjusted in 5 sinking watching of steel-pipe pile.Adjustment structure includes adjusting screw rod 38 and adjusting nut 39, adjusting nut 39 and perpendicular
It is welded to the side of reinforcing rod 37, vertical reinforced bar 37 is equipped with the adjusting threaded hole concentric with adjusting nut 39, to wear
Adjusting screw rod 38.
In the present embodiment, longitudinal bottom susceptor 31, lateral bottom susceptor 32 and vertical reinforced bar 37 by two I-steel side by side
It is welded.
The processing method of locating guide device in the present invention is, first by fixing steel plate 33,1 and of Waterborne movable operation platform
34 firm welding of stiffened steel plates, in the center hole-opening of fixing steel plate 33, then by fixing steel plate 33, longitudinal bottom susceptor 31,
34 firm welding of stiffened steel plates.Nut 39, vertical reinforced bar 37 are welded, bolt 38 is by adjusting threaded hole and nut 39
Connection, then by 36 firm welding of lateral bottom susceptor 32, vertical reinforced bar 37 and vertical lateral, opened at the both ends of lateral bottom susceptor 32
Apertured hole is connect with longitudinal bottom susceptor 31 by pin shaft 35, is finally lifted locating guide device 3 to waterborne using hoisting machinery 6
Longitudinal bottom susceptor 31 and fixing steel plate 33 are connected by pin shaft 35, complete assembling by mobile operation platform 1.
Locating guide device in the present invention can be improved the positioning accuracy of steel-pipe pile and reinforce in sinking watching to vertical
The control of degree avoids the occurrence of the common quality defects such as steel pipe pile deflection, deviation, greatly ensured steel-pipe pile construction quality and into
Degree.Furthermore it is also possible to reduce cost input, locating guide device can be processed in processing factory's back court, and the scene of being transported to is installed, nothing
Need occupied ground.
The invention also discloses one kind to be based on construction system disclosed by the invention, steel under the closely knit cobble coating geology of deep water
The construction method of tubular pole, includes the following steps:
(1) small buoyancy tank group is combined into Waterborne movable operation platform 1.
In the step, small buoyancy tank unifies processing and fabricating inside, is transported to on-site hoisting and is lauched carry out spelling, after the completion of spelling
It moves on the water and the auxiliary equipment such as anchor 2, locating guide device 3, generator, guard rail is installed on operation platform 1.
(2) traveling of hoisting machinery 6 integrally checks construction point to Waterborne movable operation platform 1.
In the step, the traveling of hoisting machinery 6 is to Waterborne movable operation platform 1, and by hydraulic impact hammer 4, hydraulic vibration driver
Deng in lifting to Waterborne movable operation platform 1；Waterborne movable operation platform 1 is consigned to point to be onstructed by Power Vessel.
(3) hoist engine of anchor 2 is cast anchor and adjusts, to anchor fixed Waterborne movable operation platform 1.Pass through GPS-
RTK setting-out tapping pipe pile position, then hoist engine is adjusted, make in the locating guide device 3 of Waterborne movable operation platform 1
The heart and the deviation for designing stake position control within 50cm.
(4) again by GPS-RTK setting-out tapping pipe pile position, adjusting longitudinal bottom susceptor 31 makes locating guide device 3 and sets
The deviation for counting stake position controls within 5cm, is fixed to locating guide device 3.
(5) steel-pipe pile 5 carries out spreading on the coast, and single stake total length is not less than designing pile length, and at stake bottom, spreading,
Reinforced the positions such as stake top；It is delivered to construction point by cargo ship, steel-pipe pile 5 is hung in positioning and guiding and filled by hoisting machinery 6
It sets in 3, adjusts the adjusting screw rod 38 at 3 top of locating guide device, make the verticality of steel-pipe pile 5 less than 1%；Lift by crane hydraulic vibration
Hammer 4, the heavy steel-pipe pile 5 that shakes pass through riverbed surface muck soil and partial loose cobble coating；Because 5 bottoms of steel-pipe pile are by closely knit ovum
The resistance of stone geology is larger, can not be further continued for vibration by hydraulic vibration driver and sink, and it is heavy to stop hydraulic vibration driver vibration at this time.
(6) hydraulic impact hammer 4 is lifted by hoisting machinery 6, according to geological condition, controls height of the fall and impact speed, make
In 40-60kJ, steel-pipe pile 5 is smashed cobble by the temporary impact energy that hydraulic impact hammer 4 applies or directly for hammering energy control
Boulder bed was connected, realizes the pile of steel-pipe pile.Sinking watching is impacted by adjusting the adjusting screw rod at the top of locating guide device 3
38 make 5 verticality of steel-pipe pile less than 1%.5 pile of steel-pipe pile mutually checks control using stake bottom elevation and pile penetration, it is ensured that reaches
Design bearing capacity requirement.Last 30-50, which hits when mean penetration reaches 10mm and enters rock anchorage depth, reaches requirement, can stop to hammer into shape.
(7) single pile construction is completed, and hoisting machinery 6 temporarily hangs locating guide device 3, then by adjusting anchor 2
Move Waterborne movable operation platform 1 to next position, repeat the above steps construction.
Based on above-mentioned work progress, average construction efficiency is 6 pieces/day, this example amounts to 125 steel-pipe piles, and the duration only needs
21 days, construction efficiency was high.
In addition, scheme provided in this embodiment is in practical application, can also bring high economic benefit and social benefit.
The economic benefit of generation: such as pressing the construction method of rotary drilling rig pilot hole, and Waterborne movable operation platform 1 is wanted under this method
Gravity anchor is cast, could resist what Waterborne movable operation platform 1 occurred for the horizontal torque generated in the rotary drilling rig course of work
Interference effect；Rotary drilling rig pilot hole need to be constructed using elongated steel pile casting auxiliary simultaneously, and steel input amount is very big；Pilot hole terminates
After still need to carry out in steel-pipe pile to fill sand or pouring underwater concrete, need additional lifting machine auxiliary construction in the process, once
Property material and mechanical equipment input amount it is big, occupy high labor cost.Rotary drilling rig drawing hole construction low efficiency, average construction efficiency are
2 pieces/day, construction speed are more slow.
The social benefit of generation:
(1) construction does not generate any boring mud and waste compared to the mode of pilot hole, to water quality without any pollution；It does not need simultaneously
It is mucked haulage, waste, avoids the influence to navigation navigation channel.
(2) construction efficiency is high, and daily pile quantity is 3 times that pilot hole mode is used under similar geology, and construction speed obtains
It preferably ensures, duration progress is greatly improved.
(3) steel-pipe pile pile quality is reliable, and bearing capacity is high, and Bearing Capacity of Steel Pipe Piles, which has reached, under closely knit cobble geology sets
Meter requires.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (10)
1. a kind of construction system for the closely knit cobble coating steel-pipe pile of deep water, covers cobble class decomposed rock on deep water reservoir area
Geology, which is characterized in that including
Waterborne movable operation platform which is provided with hydraulic vibration driver, hydraulic impact hammer and hoisting machinery；
Anchor is set to Waterborne movable operation platform surrounding, and Waterborne movable operation platform is anchored at construction area；
Locating guide device is fixed on Waterborne movable operation platform, to be positioned and be oriented to steel-pipe pile.
2. the construction system according to claim 1 for the closely knit cobble coating steel-pipe pile of deep water, which is characterized in that institute
Waterborne movable operation platform is stated by single small buoyancy tank spelling into concave character type structure, concave character type structure is used for steel pipe pile driving construction, makes
Center of gravity keeps balance to guarantee that Waterborne movable operation platform is stablized.
3. the construction system according to claim 1 for the closely knit cobble coating steel-pipe pile of deep water, which is characterized in that institute
It states anchor and is included in two groups of Waterborne movable operation platform trailing end cross setting, angularly disposed two groups of front end, flank is respectively arranged
One group, operation platform movement is moved on the water and construction period is anchored fixation.
4. the construction system according to claim 3 for the closely knit cobble coating steel-pipe pile of deep water, which is characterized in that every
The group anchor includes hoist engine, wirerope, roller bearing and Hall'sanchor, and mobile construction is flat on the water for the hoist engine setting
On platform, by steel wire penetrating Waterborne movable operation platform edge be arranged roller bearing and be connected to Hall'sanchor.
5. the construction system according to claim 1 for the closely knit cobble coating steel-pipe pile of deep water, which is characterized in that institute
Stating locating guide device includes longitudinal bottom susceptor, lateral bottom susceptor, vertical reinforced bar, vertical lateral and connection frame, described in two
Longitudinal bottom susceptor is parallel to each other and longitudinally disposed along Waterborne movable operation platform, and two lateral bottom susceptors are parallel to each other and edge
Waterborne movable operation platform is laterally arranged, and the lateral bottom susceptor is located at the top of longitudinal bottom susceptor, and square crossing and logical
Connection frame connection is crossed, the longitudinal direction bottom susceptor is connect with Waterborne movable operation platform by locating rack, and the vertical reinforced bar is logical
Connection frame and vertical lateral is crossed to connect with lateral bottom susceptor.
6. the construction system according to claim 5 for the closely knit cobble coating steel-pipe pile of deep water, which is characterized in that institute
Stating connection frame includes fixing steel plate, stiffened steel plates and pin shaft, and two stiffened steel plates are oppositely arranged in parallel and hang down with fixing steel plate
Straight welding, the pin shaft wear two fixing steel plates positioned at two sides, to connect longitudinal bottom susceptor and shifting waterborne by connection frame
Dynamic operation platform or longitudinal bottom susceptor and lateral bottom susceptor.
7. the construction system according to claim 5 for the closely knit cobble coating steel-pipe pile of deep water, which is characterized in that institute
It is angularly disposed to state the relatively transverse bottom susceptor of vertical reinforced bar, and vertical reinforced bar is set as four, four vertical reinforced bars
The quadrangle square positioned at one.
8. the construction system according to claim 7 for the closely knit cobble coating steel-pipe pile of deep water, which is characterized in that institute
It states and is provided with adjustment structure on vertical reinforced bar, the adjustment structure includes adjusting screw rod and adjusting nut, the adjusting nut
It is welded with the side of vertical reinforced bar, the vertical reinforced bar is equipped with the adjusting threaded hole concentric with adjusting nut, to wear
If adjusting screw rod.
9. the construction system according to any one of claims 1 to 8 for the closely knit cobble coating steel-pipe pile of deep water, special
Sign is that the longitudinal direction bottom susceptor, lateral bottom susceptor and vertical reinforced bar are welded side by side by two I-steel.
10. a kind of construction system based on as described in claim 1 to 9 is used for the closely knit cobble coating steel pipe pile driving construction of deep water
Method includes the following steps:
(1) small buoyancy tank group is combined into Waterborne movable operation platform, is moved on the water after the completion of spelling and anchoring is installed on operation platform
Device, locating guide device, generator and guard rail；
(2) hoisting machinery is travelled to Waterborne movable operation platform, and hydraulic impact hammer, hydraulic vibration driver etc. are lifted to shifting waterborne
On dynamic operation platform, Waterborne movable operation platform is then consigned to point to be onstructed by Power Vessel；
(3) hoist engine of anchor is cast anchor and adjusts, to anchor fixed Waterborne movable operation platform；Then setting-out goes out steel-pipe pile
Stake position, then hoist engine is adjusted, the center of the locating guide device of Waterborne movable operation platform is made and designs the inclined of stake position
Difference control is within 50cm；
(4) setting-out tapping pipe pile position, the longitudinal bottom susceptor of adjustment make the deviation control of locating guide device and design stake position exist again
Within 5cm, locating guide device is fixed；
(5) steel-pipe pile carries out spreading on the coast, and single stake total length is not less than designing pile length, and at stake bottom, spreading, stake top etc.
Position is reinforced, and is then delivered to construction point by cargo ship；Hoisting machinery hangs in steel-pipe pile in locating guide device,
The adjusting screw rod at the top of locating guide device is adjusted, makes the verticality of steel-pipe pile less than 1%；Hydraulic vibration driver is lifted by crane, shake heavy steel
Tubular pole passes through riverbed surface muck soil and partial loose cobble coating；
(6) hydraulic impact hammer is lifted by hoisting machinery, according to geological condition, controls height of the fall and impact speed, steel-pipe pile
Cobble is smashed by the temporary impact energy that hydraulic impact hammer applies or directly by boulder bed, realizes the pile of steel-pipe pile；
Impact sinking watching makes the verticality of steel-pipe pile less than 1% by adjusting the adjusting screw rod at the top of locating guide device；
(7) single pile construction is completed, and hoisting machinery temporarily hangs locating guide device, then makes shifting waterborne by adjusting anchor
Dynamic operation platform is moved to next position, and repeat the above steps construction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910204279.8A CN109778839A (en) | 2019-03-18 | 2019-03-18 | Construction system and construction method for the closely knit cobble coating steel-pipe pile of deep water |
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| CN201910204279.8A CN109778839A (en) | 2019-03-18 | 2019-03-18 | Construction system and construction method for the closely knit cobble coating steel-pipe pile of deep water |
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| CN110939133A (en) * | 2019-12-10 | 2020-03-31 | 安徽开源路桥有限责任公司 | Construction method for pile sinking operation of steel pipe pile |
| CN110939133B (en) * | 2019-12-10 | 2024-01-23 | 安徽开源路桥有限责任公司 | Construction method for pile sinking operation of steel pipe pile |
| CN115012415A (en) * | 2022-05-13 | 2022-09-06 | 中国铁建大桥工程局集团有限公司 | Precise positioning floating construction platform for deepwater reservoir area and construction method thereof |
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Application publication date: 20190521 |