CN111778970A - Measurement and control method for sinking of pile group steel casing of far-shore non-construction platform - Google Patents
Measurement and control method for sinking of pile group steel casing of far-shore non-construction platform Download PDFInfo
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- CN111778970A CN111778970A CN202010548077.8A CN202010548077A CN111778970A CN 111778970 A CN111778970 A CN 111778970A CN 202010548077 A CN202010548077 A CN 202010548077A CN 111778970 A CN111778970 A CN 111778970A
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- pile
- casing
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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
- E02D5/66—Mould-pipes or other moulds
- E02D5/68—Mould-pipes or other moulds for making bulkheads or elements thereof
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
Abstract
The invention relates to the field of steel pile casing construction, and aims to solve the problems that the sinking efficiency of the existing far-shore steel pile casing is low and the sinking precision is difficult to guarantee, and provides a measurement and control method for the sinking of the pile group steel pile casing without a construction platform on a far-shore, wherein two spaced verticality observation devices are arranged on a piling ship, and a connecting line between one of the verticality observation devices and a lower pile point on the piling ship forms a 90-degree included angle with a connecting line between the other verticality observation device and the lower pile point on the piling ship; sinking a first steel pile casing through a piling ship; a measuring platform is erected on the steel casing, and data of the measuring platform erected on the first steel casing is obtained through data of existing control points on the shore; and controlling the verticality of the pile by using a verticality observation device on the piling ship, and sinking other steel pile casings by using the piling ship until all the steel pile casings are sunk. The invention has the advantages of high working efficiency and guaranteed sinking precision.
Description
Technical Field
The invention relates to the field of steel casing construction, in particular to a measuring and controlling method for sinking of group pile steel casings of a far-shore non-construction platform.
Background
Some bridges carry out steel casing sinking work, and since the bridges are far away from the bank, the total station cannot be used for directly commanding the steel casing to sink on the bank, a construction area is on the water surface far away from the bank, no measuring station is provided, and a construction platform is not erected in the steel casing area, the conventional method of erecting the platform and then sinking the steel casing cannot be adopted. And use marine pile driving ship to execute and beat the influence that the steel protects a section of thick bamboo receives rivers, is in the motion, and the location needs one day time, and is consuming time for a long time, and is inefficient, and can't guarantee to sink the precision.
Disclosure of Invention
The invention aims to provide a measurement and control method for sinking of a group pile steel casing of a far-shore non-construction platform, and aims to solve the problems that the existing far-shore steel casing is low in sinking efficiency and difficult to guarantee sinking precision.
The embodiment of the invention is realized by the following steps:
a measuring and controlling method for sinking of a pile group steel pile casing without a construction platform at a far bank is characterized in that two spaced verticality observation devices are arranged on a piling ship, and a 90-degree included angle is formed between a connecting line between one of the verticality observation devices and a lower pile point on the piling ship and a connecting line between the other verticality observation device and the lower pile point on the piling ship;
sinking a first steel pile casing by using a piling ship, controlling the plane position and the elevation of the steel pile casing by using a GPS (global positioning system) on the piling ship in the sinking process, and simultaneously ensuring the verticality of the pile according to the two verticality observation devices;
after the first steel pile casing is sunk in place, a measuring platform is erected on the first steel pile casing, and data of the measuring platform erected on the first steel pile casing is obtained through data of existing control points on the bank;
the perpendicularity of the pile is controlled by a perpendicularity observation device on the piling ship, meanwhile, the position and the elevation of the sunk steel pile casing are controlled by data of a measuring platform erected on the first steel pile casing, and sinking of other steel pile casings is carried out through the piling ship until all the steel pile casings are sunk.
In one embodiment:
and the measuring platform arranged on the first steel casing is a total station.
The total station can conveniently monitor the elevation and the plane position.
In one embodiment:
the grouped piles are distributed in a matrix manner, and the first steel pile casing is a steel pile casing positioned in the middle of the long direction of the grouped piles.
Through setting up the long middle position of a first steel pile casing at the crowd's stake for other stake that wait to sink all with this first steel pile casing apart from not too far away.
In one embodiment:
the number of the control points is two, and the two control points are arranged on the same side of the river bank and distributed at intervals along the river flow direction.
The data of the measuring platform can be conveniently obtained by adopting coordinate operation by arranging the two control points.
In one embodiment:
the precision of each steel casing is controlled to be 5cm on the plane, 5cm in elevation and 1/400 in perpendicularity.
In one embodiment:
the verticality observation device comprises an observation frame and an observation part connected with the observation frame; the observation frame is provided with an electromagnet which can control the observation frame to be in a magnetic state or a non-magnetic state;
the observation portion includes:
the liquid container comprises a box body and a liquid storage box, wherein the box body is provided with a vertical through seam penetrating through the front wall and the rear wall of the box body, and the lower end of the vertical through seam is positioned above the bottom wall of the box body, so that the lower part of the box body is provided with a liquid box with an upward opening and capable of containing liquid;
the graduated scale is arranged on the box body and vertically passes through the vertical through seam;
the suspension hammer is suspended in the box body through the rope piece and is positioned in the liquid box; the rope piece is right opposite to the vertical through seam of the front wall and the rear wall of the box body.
In one embodiment:
the top wall of the box body is provided with a cutting seam which is positioned on the same vertical surface with the vertical through seam of the front wall and the rear wall, and the upper end of the rope piece is connected to a cross rod which stretches across two sides of the cutting seam and is supported on the top wall.
In one embodiment:
the observation frame comprises a horizontal table supported by a plurality of supporting legs, and the box body is supported and connected to the upper surface of the horizontal table;
the electromagnets are arranged at the lower ends of the supporting legs.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a layout view of a construction site;
FIG. 2 is a schematic view of the pile driving vessel sinking a first steel casing;
FIG. 3 is a schematic view of a measuring platform arranged on a first steel casing;
FIG. 4 is a schematic view of the piling vessel sinking other steel casings;
FIG. 5 is a schematic view of a verticality observation apparatus;
figure 6 is a schematic view of one connection of the hammer and the line member.
Icon: the device comprises a pile group 51, a pile driving barge 52, a steel casing 53, a verticality observation device 54, a measuring platform 55, a first steel casing 56, a control point 57, an observation frame 11, an observation part 12, an electromagnet 13, a box body 14, a graduated scale 17, a hanging hammer 18, a rope piece 19, a vertical through seam 15, a liquid box 16, a cross rod 20, a connecting nut 23, a supporting leg 21 and a horizontal table 22.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1, the embodiment proposes a method for measuring and controlling the sinking of steel casing of a pile group without a construction platform on a far shore, wherein a pile group 51 comprises a plurality of steel casings 53 which are located in a water flow and are far from the shore. In this construction situation, it is difficult and time-consuming to position the pile in the flowing water for the pile driving vessel, for example, when the steel pile casings of the pier groups of a certain bridge are arranged in the Yangtze river in practice, because the flowing water is fast, the time consumption for sinking each steel pile casing in the prior art is nearly one day, the total construction period of the pier is nearly 36, and the construction period is greatly influenced.
The method for measuring and controlling the sinking of the group pile steel casing on the far shore without the construction platform can shorten the total construction period to be nearly within 3-4 days, is only 1/6-1/9 which consumes time originally, and has high practical value.
With reference to fig. 2 to 4, the embodiment of the measurement and control method for sinking the far-shore non-construction-platform group pile steel casing in the embodiment is as follows:
arranging two spaced apart verticality observation devices 54 on the pile driving vessel 52, and enabling a connecting line between one of the verticality observation devices and a lower pile point on the pile driving vessel to form a 90-degree included angle with a connecting line between the other verticality observation device and the lower pile point on the pile driving vessel; sinking a first steel pile casing 56 by using a piling ship, controlling the plane position and elevation of the steel pile casing by using a GPS (global positioning system) on the piling ship in the sinking process, and simultaneously ensuring the perpendicularity of the pile according to the two perpendicularity observation devices;
under this setting, through setting for the position relation of perpendicular observation device and lower stake point for can conveniently accurately to the straightness that hangs down of two orthogonal directions of steel casing, thereby make the steel casing straightness that hangs down obtain accurate control.
After the first steel casing is sunk in place, a measuring platform 55 is erected on the first steel casing, and data of the measuring platform erected on the first steel casing is obtained through data of an existing control point 57 on the bank, wherein the measuring platform can be a total station; the perpendicularity of the pile is controlled by a perpendicularity observation device on the piling ship, meanwhile, the position and the elevation of the sunk steel pile casing are controlled by data of a measuring platform erected on the first steel pile casing, and sinking of other steel pile casings is carried out through the piling ship until all the steel pile casings are sunk. In this embodiment, referring to fig. 1, there are two control points, and the two control points are disposed on the same bank and are distributed at intervals along the river flow direction. The data of the measuring platform can be conveniently obtained by adopting coordinate operation by arranging the two control points.
In this embodiment, the piles are distributed in a matrix, and the first steel casing is a steel casing located at the middle position of the long direction of the piles. Through setting up the long middle position of a first steel pile casing at the crowd's stake for other stake that wait to sink all with this first steel pile casing apart from not too far away.
In the embodiment, the precision of each steel casing is controlled to be 5cm on the plane, 5cm on the elevation and 1/400 in the perpendicularity.
The perpendicularity observing apparatus in the present embodiment may employ various existing apparatuses, for example, the perpendicularity observing apparatus shown with reference to fig. 5 and 6.
The perpendicularity observation device 54 includes an observation frame 11 and an observation portion 12 connected to the observation frame 11; the observation frame 11 is provided with an electromagnet 13 which can control the observation frame to be in a magnetic state or a non-magnetic state; the observation portion 12 includes: a box 14, a scale 17, a hammer 18 and a rope 19. The box body 14 is provided with a vertical through seam 15 penetrating through the front wall and the rear wall of the box body, and the lower end of the vertical through seam 15 is positioned above the bottom wall of the box body 14, so that the lower part of the box body 14 is provided with a liquid box 16 which has an upward opening and can contain liquid; the graduated scale 17 is arranged on the box body 14 and vertically passes through the vertical through seam 15; the hanging hammer 18 is suspended in the box body 14 through a rope piece 19 and is positioned in the liquid box 16; the string 19 is aligned with the vertical through-slit 15 of the front and rear walls of the case 14. The verticality observation device can be conveniently and reliably used for carrying out verticality measurement on a fixed steel casing/steel pipe pile waiting measuring body on an unstable platform such as a ship body. When the device is used, after the device is moved to an observation point, the switch of the electromagnet 13 is turned on, so that the electromagnet is adsorbed on the position, which can be adsorbed by the electromagnet 13, on the platform; damping fluid is filled in the fluid tank 16. After the hanging hammer 18 is stabilized, the sight line is adjusted until one end of the rope piece 19 is tangent to the outer surface of one end of the body to be measured, and then the horizontal distance of the other end of the body to be measured deviating from the rope piece 19 is read through the graduated scale 17. The ratio of the horizontal distance to the height direction value can be used as a value for verticality judgment.
In this embodiment, in order to facilitate the hanging of the rope 19, the top wall of the box 14 is provided with a cutting slit which is in the same vertical plane as the vertical through slit 15 of the front and rear walls, and the upper end of the rope 19 is connected to a cross bar 20 which spans two sides of the cutting slit and is supported on the top wall. In order to connect the hanging weight 18 and the rope member 19, a connecting nut 23 is screwed to the upper portion of the hanging weight 18, and the rope member 19 is connected to the hanging weight 18 through the connecting nut 23.
The observation frame 11 in this embodiment can be configured to include a horizontal platform 22 supported by a plurality of legs 21, and the box 14 is supported and connected to the upper surface of the horizontal platform 22; the electromagnet 13 is provided at the lower end of each leg 21. Furthermore, the number of the supporting legs 21 is four, the upper ends of the four supporting legs 21 are connected with the horizontal platform 22, and the lower ends of the four supporting legs extend outwards in an inclined manner; the lower ends of the four legs 21 are provided with electromagnets 13, respectively.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A measurement and control method for sinking of a pile group steel casing of a far-shore non-construction platform is characterized by comprising the following steps:
arranging two spaced verticality observation devices on a piling ship, wherein a connecting line between one verticality observation device and a lower pile point on the piling ship forms a 90-degree included angle with a connecting line between the other verticality observation device and the lower pile point on the piling ship;
sinking a first steel pile casing by using a piling ship, controlling the plane position and the elevation of the steel pile casing by using a GPS (global positioning system) on the piling ship in the sinking process, and simultaneously ensuring the verticality of the pile according to the two verticality observation devices;
after the first steel pile casing is sunk in place, a measuring platform is erected on the first steel pile casing, and data of the measuring platform erected on the first steel pile casing is obtained through data of existing control points on the bank;
the perpendicularity of the pile is controlled by a perpendicularity observation device on the piling ship, meanwhile, the position and the elevation of the sunk steel pile casing are controlled by data of a measuring platform erected on the first steel pile casing, and sinking of other steel pile casings is carried out through the piling ship until all the steel pile casings are sunk.
2. The measurement and control method for sinking of the pile group steel casing of the far-shore non-construction platform according to claim 1, is characterized in that:
and the measuring platform arranged on the first steel casing is a total station.
3. The measurement and control method for sinking of the pile group steel casing of the far-shore non-construction platform according to claim 1, is characterized in that:
the grouped piles are distributed in a matrix manner, and the first steel pile casing is a steel pile casing positioned in the middle of the long direction of the grouped piles.
4. The measurement and control method for sinking of the pile group steel casing of the far-shore non-construction platform according to claim 1, is characterized in that:
the number of the control points is two, and the two control points are arranged on the same side of the river bank and distributed at intervals along the river flow direction.
5. The measurement and control method for sinking of the pile group steel casing of the far-shore non-construction platform according to claim 1, is characterized in that:
the precision of each steel casing is controlled to be 5cm on the plane, 5cm in elevation and 1/400 in perpendicularity.
6. The measurement and control method for sinking of the pile group steel casing of the far-shore non-construction platform according to claim 1, is characterized in that:
the verticality observation device comprises an observation frame and an observation part connected with the observation frame; the observation frame is provided with an electromagnet which can control the observation frame to be in a magnetic state or a non-magnetic state;
the observation portion includes:
the liquid container comprises a box body and a liquid storage box, wherein the box body is provided with a vertical through seam penetrating through the front wall and the rear wall of the box body, and the lower end of the vertical through seam is positioned above the bottom wall of the box body, so that the lower part of the box body is provided with a liquid box with an upward opening and capable of containing liquid;
the graduated scale is arranged on the box body and vertically passes through the vertical through seam;
the suspension hammer is suspended in the box body through the rope piece and is positioned in the liquid box; the rope piece is right opposite to the vertical through seam of the front wall and the rear wall of the box body.
7. The measurement and control method for sinking of the pile group steel casing of the far-shore non-construction platform according to claim 6, is characterized in that:
the top wall of the box body is provided with a cutting seam which is positioned on the same vertical surface with the vertical through seam of the front wall and the rear wall, and the upper end of the rope piece is connected to a cross rod which stretches across two sides of the cutting seam and is supported on the top wall.
8. The measurement and control method for sinking of the pile group steel casing of the far-shore non-construction platform according to claim 6, is characterized in that:
the observation frame comprises a horizontal table supported by a plurality of supporting legs, and the box body is supported and connected to the upper surface of the horizontal table;
the electromagnets are arranged at the lower ends of the supporting legs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010548077.8A CN111778970A (en) | 2020-06-16 | 2020-06-16 | Measurement and control method for sinking of pile group steel casing of far-shore non-construction platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010548077.8A CN111778970A (en) | 2020-06-16 | 2020-06-16 | Measurement and control method for sinking of pile group steel casing of far-shore non-construction platform |
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| CN111778970A true CN111778970A (en) | 2020-10-16 |
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