CN118186954A - Box culvert floating transportation installation method - Google Patents
Box culvert floating transportation installation method Download PDFInfo
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- CN118186954A CN118186954A CN202410489082.4A CN202410489082A CN118186954A CN 118186954 A CN118186954 A CN 118186954A CN 202410489082 A CN202410489082 A CN 202410489082A CN 118186954 A CN118186954 A CN 118186954A
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- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000007667 floating Methods 0.000 title claims abstract description 40
- 238000009434 installation Methods 0.000 title claims abstract description 36
- 238000010276 construction Methods 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 210000001503 joint Anatomy 0.000 claims abstract description 16
- 230000009471 action Effects 0.000 claims abstract description 15
- 238000013459 approach Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims description 14
- 230000005484 gravity Effects 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 6
- 230000009916 joint effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Abstract
The invention relates to a box culvert floating transportation installation method, which belongs to the technical field of box culvert construction, wherein the box culvert floating transportation installation method comprises the following steps: a first air bag is arranged in a hole of the box culvert to be placed, and a second air bag is arranged at the outer side of the box culvert to be placed; connecting the first anchor boat with a hanging ring arranged at the front end of the box culvert to be placed, and correspondingly connecting the second anchor boat and the third anchor boat with a hanging ring arranged at the rear end of the box culvert to be placed; the first anchor boat pulls the box culvert to be placed into water, and the first anchor boat pulls the box culvert to be placed to move towards the construction position; when the box culvert to be placed floats to a certain distance from the construction position, the first anchor boat starts to decelerate, so that the box culvert to be placed slowly approaches to the positioning ship; after the box culvert to be placed is positioned close to the positioning ship, the box culvert to be placed moves to a construction position to be initially positioned under the action of the positioning ship; removing a second air bag at the outer side of the box culvert to be placed, and exhausting part of the first air bag in the holes of the box culvert to be placed so that the box culvert to be placed sinks in water; connecting a winch on the positioning ship with a hanging ring arranged on the box culvert to be placed, and pulling the box culvert to be placed to move towards the direction of the box culvert to be placed by the winch, so that the box culvert to be placed is in butt joint with the box culvert to be placed.
Description
Technical Field
The invention belongs to the technical field of box culvert construction, and particularly relates to a box culvert floating transportation installation method.
Background
The box culvert is a culvert with a body constructed by reinforced concrete box-shaped pipe joints, consists of one or more square or rectangular sections, is usually made of reinforced concrete or masonry, and has important functions in drainage, traffic and the like.
The box culvert is usually prefabricated in a prefabrication place, and then is hoisted to a construction site for placement. The transportation and installation of the box culvert are important steps of box culvert project construction. At present, most of the transportation and installation of the box culverts are through a dock or a crane ship, and for some medium-and-large-sized box culverts, the required dock or crane ship is large in specification due to large size and weight, so that the construction cost is obviously increased, the construction efficiency is low, the transportation and installation construction period is long, and the requirements of construction projects with a tighter construction period cannot be well met.
Disclosure of Invention
Aiming at the defects existing in the related art, the invention provides a box culvert floating transportation installation method, so as to simplify the box culvert floating transportation installation method, improve the construction efficiency and reduce the construction cost.
The invention provides a box culvert floating transportation installation method, which comprises the following steps:
a first air bag is arranged in a hole of the box culvert to be placed, and a second air bag is arranged at the outer side of the box culvert to be placed;
Connecting the first anchor boat with a hanging ring arranged at the front end of the box culvert to be placed, and correspondingly connecting the second anchor boat and the third anchor boat with a hanging ring arranged at the rear end of the box culvert to be placed;
the first anchor boat pulls the box culvert to be placed into water, and the first anchor boat pulls the box culvert to be placed to move towards the construction position;
When the box culvert to be placed floats to a certain distance from the construction position, the first anchor boat starts to decelerate, so that the box culvert to be placed slowly approaches to the positioning ship;
After the box culvert to be placed is positioned close to the positioning ship, the box culvert to be placed moves to a construction position to be initially positioned under the action of the positioning ship;
removing a second air bag at the outer side of the box culvert to be placed, and exhausting part of the first air bag in the holes of the box culvert to be placed so that the box culvert to be placed sinks in water;
Connecting a winch on the positioning ship with a hanging ring arranged on the box culvert to be placed, and pulling the box culvert to be placed to move towards the direction of the box culvert to be placed by the winch, so that the box culvert to be placed is in butt joint with the box culvert to be placed.
According to the technical scheme, the first air bag and the second air bag are arranged on the box culvert to be placed, so that the buoyancy of the box culvert to be placed is increased, and the box culvert to be placed is convenient to transport in water; when the box culvert to be placed floats to a construction position, the second air bag is removed, and part of the first air bag is exhausted, so that the buoyancy of the box culvert to be placed is reduced, and the box culvert to be placed sinks in water under the action of self gravity; through setting up the locating boat, not only can treat to lay the box culvert and fix a position to can realize waiting to lay the box culvert and having laid the box culvert when waiting to lay the box culvert and sink into the submarine and draw to close, realize waiting to lay the box culvert and having laid the butt joint of box culvert.
In some embodiments, the box culvert to be placed is provided with at least one hole, and at least one first air bag is filled in the same hole.
In some embodiments, a jacking air bag is arranged at the bottom of the box culvert to be placed, and the box culvert to be placed and the jacking air bag move relatively in the process of dragging the box culvert to be placed into water by the first anchor boat.
According to the technical scheme, the jacking air bags are arranged at the bottoms of the box culverts to be placed, the box culverts to be placed are supported by the jacking air bags, so that on one hand, the ground stress is uniform, and on the other hand, the damage to the box culverts to be placed in the relative motion process of the box culverts to be placed and the jacking air bags can be reduced.
In some embodiments, after the jacking air bags form a support for the box culvert to be laid, the buttresses placed at the bottom of the box culvert to be laid when the box culvert to be laid is prefabricated are removed.
In some embodiments, after the box culvert to be placed is initially positioned, the box culvert to be placed is connected with a crane ship, so that the crane ship can apply a hanging force to the box culvert to be placed in the process of dismantling the second air bag and exhausting part of the first air bag, and the box culvert to be placed is prevented from sinking.
In some embodiments, when the lifting force of the crane ship to the box culvert to be placed reaches a certain value, the first air bag stops exhausting, so that the box culvert to be placed sinks under the action of self gravity.
In some of these embodiments, the crane ship performs attitude adjustment of the box culvert to be laid when the box culvert to be laid is submerged a distance from the water bed.
In some embodiments, a measuring tower is arranged at the top of the box culvert to be placed, a GPS is arranged on the measuring tower, and the position of the box culvert to be placed is determined by detecting the position of the GPS in the floating and/or sinking and/or placing process of the box culvert to be placed.
In some embodiments, before the box culvert to be placed is filled with water, the total station is used for measuring the distance between each corner of the top surface of the box culvert to be placed and the GPS respectively, so that the relative position relationship between each corner of the top surface of the box culvert to be placed and the GPS is obtained.
In some embodiments, the positioning ship is provided with a first fixed pulley, the hanging ring arranged at the front end of the placed box culvert is connected with a second fixed pulley, and the steel wire rope of the winch sequentially bypasses the first fixed pulley and the second fixed pulley to be connected with the hanging ring at the rear end of the box culvert to be placed.
Based on the technical scheme, the box culvert floating transportation installation method provided by the embodiment of the invention realizes floating transportation of the box culvert to be placed and sinking of the box culvert to be placed by utilizing the first air bag and the second air bag, so that the construction method is simplified, the construction is convenient, the construction efficiency is high, equipment such as a large crane ship is not required to be arranged, and the construction cost is reduced; and the positioning ship is utilized to position the box culvert to be placed and to butt joint the box culvert to be placed with the placed box culvert, so that the accuracy of the placement position of the box culvert to be placed is high and the butt joint effect with the placed box culvert is good.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic diagram of a box culvert in one embodiment of the box culvert floating installation method of the present invention;
FIG. 2 is a schematic diagram of a box culvert in one embodiment of the method for installing a first air bag and a second air bag;
FIG. 3 is a schematic diagram of a box culvert in one embodiment of the method for installing a lifting airbag;
FIG. 4 is a schematic diagram of box culvert floating on the water surface in one embodiment of the box culvert floating installation method of the invention;
FIG. 5 is a schematic view of a box culvert approaching a positioning vessel in one embodiment of the box culvert floating installation method of the present invention;
FIG. 6 is a schematic view of a box culvert sinking in an embodiment of the box culvert floating installation method of the invention;
FIG. 7 is a schematic diagram 1 of a box culvert to be placed in butt joint with a box culvert already placed in an embodiment of the box culvert floating installation method of the invention;
fig. 8 is a schematic diagram 2 of a box culvert to be placed in butt joint with a box culvert already placed in an embodiment of the box culvert floating installation method of the invention.
In the figure:
1. The box culvert is to be placed; 2. a first air bag; 3. a second air bag; 4. jacking the air bag; 5. a first anchor boat; 6. second anchor boat; 7. third anchor boat; 8. positioning a ship; 9. a crane vessel; 10. a water-based bed;
11. A measurement assembly; 12. the box culvert is already placed; 13. a second fixed pulley; 14. a hanging ring;
81. A hoist; 82. a wire rope; 83. a first fixed pulley;
91. And (5) a crane.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", or a third "may explicitly or implicitly include one or more such feature.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In practical application, the box culvert at least comprises a hole, and the hole penetrates through the box culvert along the horizontal direction.
In the prior art, when the box culvert is used for constructing under water, wait to lay the box culvert 1 and hoist to the construction position through large-scale crane ship 9 after prefabricating and accomplish, then wait to lay the subsidence of box culvert 1, to some middle-size and large-size box culverts, because its volume and weight are great, hoist and mount required crane ship 9 specification is also great, consequently, adopt the mode transportation of hoist and mount box culvert to increase construction cost, and the efficiency of construction is still lower moreover.
In an exemplary embodiment of the box culvert floating installation method of the present invention, as shown in fig. 1 to 8, the box culvert 1 to be installed is transported to a construction position by means of buoyancy of water, and the box culvert 1 to be installed is submerged into the water bed 10 under the action of its own gravity, the large crane ship 9 is not required to be used in the whole underwater construction of the box culvert 1 to be installed, so that not only can construction cost be saved, but also construction efficiency is high, and the butt joint effect of the box culvert 1 to be installed and the box culvert 12 to be installed is good.
As shown in fig. 1, a measuring component 11 is installed at the top of the box culvert 1 to be placed, and the position and the posture of the box culvert 1 to be placed need to be measured when the box culvert 1 to be placed is under water, in this embodiment, the measuring component 11 is disposed at the top of the box culvert 1 to be placed, and the position of the box culvert 1 to be placed is determined by measuring the position of the measuring component 11.
Specifically, the measuring assembly 11 comprises a measuring tower and a GPS, the GPS is arranged on the measuring tower, the total station is used for measuring the distance between each corner of the top surface of the box culvert 1 to be placed and the GPS respectively, the relative position relationship between each corner of the top surface of the box culvert 1 to be placed and the GPS is obtained, when the box culvert 1 to be placed is subjected to underwater construction, the position of the GPS can be obtained through a wireless technology, and the position and the posture of the box culvert 1 to be placed are obtained according to the relative position relationship between each corner of the top surface of the box culvert 1 to be placed and the GPS.
As shown in fig. 2, a first air bag 2 is installed in a hole of the box culvert 1 to be placed, and the first air bag 2 is used for increasing the buoyancy of the box culvert when the box culvert is transported in water.
In some embodiments, a plurality of first air bags 2 are disposed in the same hole, and the plurality of first air bags 2 are fully filled in the hole to increase the buoyancy of the box culvert 1 to be placed.
It should be noted that the box culvert 1 to be placed is usually provided with at least one hole.
As shown in fig. 2, in order to ensure that a proper freeboard is maintained during the floating process of the box culvert 1 to be placed, a second air bag 3 is arranged on the outer side of the box culvert 1 to be placed, and the second air bag 3 is used for increasing the buoyancy of the box culvert 1 to be placed.
In some embodiments, the first bladder 2 and/or the second bladder 3 are inflated using an air compressor and a phi 50 air tube, each first bladder 2 and/or second bladder 3 being inflated to 0.15Mpa.
In the prior art, the box culvert is usually prefabricated on land, and after the box culvert is prefabricated, supporting pieces such as buttresses are arranged at the bottom of the box culvert to support the box culvert.
The box culvert 1 to be placed needs to be moved into water from land and then to float in the water.
In some embodiments, a slideway is provided on land, one end of the slideway being arranged close to the shore, so that the box culvert 1 to be laid can be introduced into the water through the slideway.
As shown in fig. 3, a jacking air bag 4 is installed at the bottom of the box culvert 1 to be placed, and the jacking air bag 4 is used for supporting the box culvert 1 to be placed. After the jacking air bags 4 form a support for the box culvert 1 to be placed, removing the buttresses placed at the bottom of the box culvert 1 to be placed when the box culvert 1 to be placed is prefabricated. Through setting up jacking gasbag 4 in the bottom of waiting to lay box culvert 1, utilize jacking gasbag 4 to support and wait to lay box culvert 1, on the one hand can make ground atress even, on the other hand can reduce and wait to lay box culvert 1 and jacking gasbag 4 relative motion in-process, wait to lay the damage that box culvert 1 received.
In some embodiments, the jacking air bag 4 is an ultra-high pressure air bag, the diameter of the jacking air bag 4 is 1000mm, the wall thickness of the jacking air bag 4 is 10mm, the pressure bearing capacity of the jacking air bag 4 in factory inspection is 0.36MPa, and the normal use pressure is 0.2-0.25MPa.
It should be noted that, for convenience of description, the box culvert 1 to be placed advances along the front-back direction thereof, and the front of the box culvert 1 to be placed is the advancing direction thereof.
The front end and the rear end of the box culvert 1 to be placed are respectively provided with a hanging ring 14, when the box culvert 1 to be placed floats on the water surface, the hanging rings 14 at the front end of the box culvert 1 to be placed are connected to the first anchor boat, the first anchor boat applies a pulling force to the box culvert 1 to be placed, and the box culvert 1 to be placed is dragged to a construction position; the hanging ring 14 at the rear end of the box culvert 1 to be placed is connected to the second anchor boat and the third anchor boat, and the second anchor boat and the third anchor boat are matched with each other to assist the first anchor boat 5 in controlling the speed and the advancing direction of the box culvert 1 to be placed.
It should be noted that, as shown in fig. 4, the first anchor boat is located in front of the advancing direction of the box culvert 1 to be placed, and the second anchor boat and the third anchor boat are correspondingly located at the left and right sides of the advancing direction of the box culvert 1 to be placed.
It should be further noted that, in order to increase the connection firmness between the first anchor boat and the box culvert 1 to be placed, two hanging rings 14 at the front end of the box culvert 1 to be placed are provided, and both the two hanging rings 14 are connected with the first anchor boat.
In addition, it should be noted that, in order to make the stress even after the box culvert 1 to be placed is connected with the second anchor boat and the third anchor boat, two hanging rings 14 at the rear end of the box culvert 1 to be placed are also provided, and the second anchor boat and the third anchor boat are respectively connected with the corresponding hanging rings 14.
The construction position is moored with a positioning ship 8, and the positioning ship 8 is used for positioning the position of the box culvert 1 to be placed and realizing the butt joint of the box culvert 1 to be placed and the box culvert 12 to be placed.
As shown in fig. 5, when the first anchor boat pulls the culvert 1 to be laid to float at a certain distance from the construction site, the first anchor boat starts to decelerate, and the second anchor boat 6 and the third anchor boat cooperate with each other to make the culvert 1 to be laid slowly approach the positioning ship 8.
When the box culvert 1 to be placed is close to the positioning ship 8 and is in place, the box culvert 1 to be placed moves to a construction position for preliminary positioning under the action of the positioning ship 8.
In order to realize the sinking of the box culvert 1 to be placed, the buoyancy received by the box culvert 1 to be placed needs to be reduced, the second air bags 3 on the outer side of the box culvert 1 to be placed are removed, and then part of the first air bags 2 in the holes are exhausted, so that the buoyancy received by the box culvert 1 to be placed is reduced, and the box culvert 1 to be placed can be sunk under the action of gravity.
In the embodiment, the first air bag 2 and the second air bag 3 are arranged on the box culvert 1to be placed so as to increase the buoyancy of the box culvert 1to be placed, thereby facilitating the transportation of the box culvert 1to be placed in water; through dismantling the second gasbag 3 and exhausting partial first gasbag 2 when waiting to lay box culvert 1to the construction position in order to reduce the buoyancy of waiting to lay box culvert 1, make waiting to lay box culvert 1 under its self gravity effect under the aquatic subsidence, wait to lay the transportation of box culvert 1 and the equipment such as heavy crane ship 9 that need not use in the subsidence in-process, not only construction method is simple, the efficiency of construction is high, can save construction cost moreover.
As shown in fig. 6, in order to ensure the sinking effect of the box culvert 1 to be placed, before the second air bag 3 is removed and part of the first air bag 2 is exhausted, the crane ship 9 is connected with the box culvert 1 to be placed, and the crane ship 9 applies a hanging force to the box culvert 1 to be placed in the process of removing the second air bag 3 and exhausting part of the first air bag 2, so that the stress of the box culvert 1 to be placed is kept balanced, and the box culvert 1 to be placed is prevented from sinking.
It should be noted that, with the removal of the second air bag 3 and the exhaustion of the first air bag 2, the buoyancy force to which the box culvert 1 to be placed is subjected gradually decreases, and the hanging force of the crane 91 on the crane ship 9 to the box culvert is gradually increased on the premise of keeping the stress balance of the box culvert 1 to be placed.
When the hanging force of the crane 91 on the crane ship 9 to the box culvert 1 to be placed reaches a certain value, the exhaust pipe of the first air bag 2 is closed, and the exhaust of the first air bag 2 is stopped, so that the box culvert 1 to be placed sinks under the action of gravity.
Note that, during the process of exhausting the first air bag 2, attention needs to be paid to control the box culvert posture and the hanging force of the crane 91 on the crane ship 9.
It should be noted that, in the sinking process of the box culvert 1 to be placed, the sinking speed of the box culvert is controlled by monitoring the posture and the hanging force change of the box culvert 1 to be placed.
When the box culvert 1 to be placed sinks to a certain distance from the water foundation bed 10, the crane ship 9 adjusts the posture of the box culvert 1 to be placed so as to facilitate the butt joint of the box culvert 1 to be placed and the box culvert 12 to be placed.
As shown in fig. 7, when the box culvert 1 to be laid is sunk in the underwater foundation bed 10, the hoist 81 on the positioning ship 8 is connected with the hanging ring 14 provided on the box culvert 1 to be laid, and the hoist 81 pulls the box culvert 1 to be laid to move towards the direction of the box culvert 12 to be laid, so that the box culvert 1 to be laid is in butt joint with the box culvert 12 to be laid.
It should be noted that, if the front end of the box culvert 1 to be placed is close to the box culvert 12 already placed, the hoist 81 is connected with the hanging ring 14 at the front end of the box culvert 1 to be placed, and if the rear end of the box culvert 1 to be placed is close to the box culvert 12 already placed, the hoist 81 is connected with the hanging ring 14 at the rear end of the box culvert 1 to be placed.
As shown in fig. 8, the positioning ship 8 is provided with a first fixed pulley 83, the hanging ring 14 at the front end of the box culvert 12 which is placed is connected with a second fixed pulley 13, and the steel wire rope 82 of the winch 81 sequentially bypasses the first fixed pulley 83 and the second fixed pulley 13 to be connected with the hanging ring 14 of the box culvert 1 to be placed.
The winch 81 winds the steel wire rope 82, and the box culvert 1 to be placed moves towards the direction of the box culvert 12 to be placed under the action of the steel wire rope 82, so that the butt joint of the box culvert to be placed and the box culvert 12 to be placed is realized.
Through setting up positioning boat 8 in the construction position, not only can treat to lay box culvert 1 and fix a position to can realize treating to lay box culvert 1 and the drawing of having laid box culvert 12 when waiting to lay box culvert 1 to sink into the submarine, realize treating to lay box culvert 1 and the butt joint of having laid box culvert 12.
The box culvert floating transportation installation method comprises the following steps:
A first air bag 2 is arranged in a hole of the box culvert 1 to be placed, and a second air bag 3 is arranged at the outer side of the box culvert 1 to be placed;
the first anchor boat is connected with a hanging ring 14 arranged at the front end of the box culvert 1 to be placed, and the second anchor boat and the third anchor boat 7 are correspondingly connected with the hanging ring 14 arranged at the rear end of the box culvert 1 to be placed;
The first anchor boat pulls the box culvert 1 to be placed into water, and the first anchor boat 5 pulls the box culvert 1 to be placed to move towards a construction position;
when the box culvert 1 to be placed floats to a certain distance from the construction position, the first anchor boat starts to decelerate, so that the box culvert 1 to be placed slowly approaches the positioning ship 8;
after the box culvert 1 to be placed is positioned close to the positioning ship 8, the box culvert 1 to be placed moves to a construction position for preliminary positioning under the action of the positioning ship 8;
Removing the second air bags 3 on the outer side of the box culvert 1 to be placed, and exhausting part of the first air bags 2 in the holes of the box culvert 1 to be placed to enable the box culvert 1 to be placed to sink in water;
The hoisting machine 81 on the positioning ship 8 is connected with the hanging ring 14 arranged at one end of the box culvert 1 to be placed close to the box culvert 12, and the hoisting machine 81 pulls the box culvert 1 to be placed to move towards the direction of the box culvert 12 to be placed so that the box culvert 1 to be placed is in butt joint with the box culvert 12 to be placed.
The box culvert floating transportation installation method further comprises the step of installing the jacking air bags 4 at the bottom of the box culvert 1 to be placed, and the box culvert 1 to be placed and the jacking air bags 4 move relatively in the process that the first anchor boat drags the box culvert 1 to be placed into water.
The box culvert floating installation method further comprises the step that the box culvert 1 to be placed is connected with a crane 91 on a crane ship 9, and the crane ship 9 exerts a hanging force on the box culvert 1 to be placed in the process of dismantling the second air bag 3 and exhausting part of the first air bag 2, so that the box culvert 1 to be placed is prevented from sinking. When the lifting force of the crane ship 9 to the box culvert 1 to be placed reaches a certain value, the exhaust of the first air bag 2 is stopped, so that the box culvert 1 to be placed sinks under the action of the gravity of the box culvert.
The box culvert floating transportation installation method further comprises the steps that a measuring tower and a GPS are installed at the top of the box culvert 1 to be placed, before the box culvert 1 to be placed enters water, the total station is used for measuring the distance between each corner of the top surface of the box culvert 1 to be placed and the GPS respectively, and the relative position relation between each corner of the top surface of the box culvert 1 to be placed and the GPS is obtained, so that the position and the gesture of the box culvert 1 to be placed are detected in the floating transportation and installation process through detecting the position of the GPS.
The box culvert 1 to be placed comprises three holes, and four first air bags 2 are installed in each hole, so that the floating transportation installation method of the box culvert is described in detail. The box culvert floating transportation installation method comprises the following steps:
And installing a measuring tower at the top of the box culvert 1 to be placed, installing a GPS (global positioning system) at the measuring tower, and respectively measuring the distances between the four corners of the top surface of the box culvert 1 to be placed and the GPS by using a total station to obtain the relative position relationship between the four corners of the top surface of the box culvert 1 to be placed and the GPS.
The first air bags 2 are arranged in holes of the box culvert 1 to be placed, four first air bags 2 are arranged in one hole, and the holes are fully filled with the four first air bags 2 as much as possible; two second air bags 3 are arranged on the outer side of the box culvert 1 to be placed, and the two second air bags 3 are correspondingly arranged on the left side and the right side of the box culvert 1 to be placed so as to ensure that the stress of the box culvert 1 to be placed is uniform.
And installing a jacking air bag 4 at the bottom of the box culvert 1 to be placed, so that the jacking air bag 4 supports the bottom of the box culvert 1 to be placed, and removing the buttresses placed at the bottom of the box culvert 1 to be placed when the jacking air bag 4 provides support for the box culvert 1 to be placed.
The first anchor boat is connected with the hanging ring 14 at the front end of the box culvert 1 to be placed, and the second anchor boat and the third anchor boat 7 are correspondingly connected with the hanging ring 14 at the rear end of the box culvert 1 to be placed.
The first anchor boat pulls the box culvert 1 to be placed towards the construction position, so that the box culvert 1 to be placed enters water along the slideway, and the first anchor boat 5 pulls the box culvert 1 to be placed towards the construction position. When the box culvert 1 to be placed floats to 150 meters away from the construction position, the first anchor boat begins to decelerate, and the second anchor boat and the third anchor boat 7 are matched with each other, so that the box culvert 1 to be placed slowly approaches the positioning ship 8.
When the box culvert 1 to be placed is positioned by the positioning ship 8, the box culvert 1 to be placed moves to a construction position for preliminary positioning under the action of the positioning ship 8.
The crane ship 9 is connected with the box culvert 1 to be placed, the second air bags 3 on the outer side of the box culvert 1 to be placed are removed, then one of the first air bags 2 in each hole is exhausted to reduce the buoyancy force suffered by the box culvert 1 to be placed, after the lifting force of the crane 91 on the crane ship 9 reaches 100t, the exhaust of the first air bags 2 is stopped, the box culvert 1 to be placed sinks under the action of gravity, and when the box culvert 1 to be placed sinks to a distance of 0.2m from the underwater foundation bed 10, the posture of the box culvert 1 to be placed is adjusted by the crane ship 9.
The hoist 81 on the positioning ship 8 is connected with the hanging ring 14 at the front end of the box culvert 1 to be placed, and the hoist 81 pulls the box culvert 1 to be placed to move towards the box culvert 12 to enable the box culvert 1 to be placed to be in butt joint with the box culvert 12 to be placed.
It should be noted that, during the sinking and placement process of the box culvert 1 to be placed, the position of the box culvert 1 to be placed is obtained by monitoring the position of the GPS and according to the relative positional relationship between the GPS and the four corners at the top of the box culvert 1 to be placed.
It should be noted that, by detecting the position of the box culvert 1 to be placed, the placement accuracy of the box culvert 1 to be placed is ensured.
The box culvert floating transportation installation method utilizes the first air bag 2 and the second air bag 3 to realize floating transportation of the box culvert 1 to be placed and sinking of the box culvert 1 to be placed, simplifies the construction method, is convenient to construct and high in construction efficiency, does not need to arrange equipment such as a large crane ship 9 and the like, and reduces the construction cost; the positioning ship 8 is utilized to position the box culvert 1 to be placed, the box culvert 1 to be placed is in butt joint with the placed box culvert 12, the placement position of the box culvert 1 to be placed is high in accuracy, and the butt joint effect with the placed box culvert 12 is good.
Finally, it should be noted that: in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (10)
1. The box culvert floating transportation installation method is characterized by comprising the following steps of:
a first air bag is arranged in a hole of a box culvert to be placed, and a second air bag is arranged on the outer side of the box culvert to be placed;
Connecting a first anchor boat with a hanging ring arranged at the front end of the box culvert to be placed, and correspondingly connecting a second anchor boat and a third anchor boat with the hanging ring arranged at the rear end of the box culvert to be placed;
The first anchor boat pulls the box culvert to be placed into water, and the first anchor boat pulls the box culvert to be placed to move towards a construction position;
When the box culvert to be placed floats to a certain distance from the construction position, the first anchor boat starts to decelerate so that the box culvert to be placed slowly approaches to the positioning ship;
after the box culvert to be placed is close to the positioning ship and is in place, the box culvert to be placed moves to a construction position to be initially positioned under the action of the positioning ship;
Removing a second air bag at the outer side of the box culvert to be placed, and exhausting part of the first air bag in the holes of the box culvert to be placed so that the box culvert to be placed sinks in water;
And connecting a winch on the positioning ship with a lifting ring arranged at one end of the box culvert to be placed close to the box culvert to be placed, and pulling the box culvert to be placed to move towards the direction of the box culvert to be placed so as to enable the box culvert to be placed to be in butt joint with the box culvert to be placed.
2. The box culvert floating installation method of claim 1, wherein the box culvert to be placed is provided with at least one hole, and at least one first air bag is filled in the same hole.
3. The box culvert floating installation method of claim 1, wherein a jacking air bag is installed at the bottom of the box culvert to be placed, and the box culvert to be placed and the jacking air bag move relatively in the process that the first anchor boat drags the box culvert to be placed into water.
4. The box culvert floating installation method according to claim 3, wherein after the jacking air bags support the box culvert to be placed, the buttresses placed at the bottom of the box culvert to be placed when the box culvert to be placed is prefabricated are removed.
5. The box culvert floating installation method according to claim 1, wherein after the box culvert to be placed is initially positioned, the box culvert to be placed is connected with a crane ship, so that the crane ship can apply a hanging force to the box culvert to be placed in the process of dismantling the second air bag and exhausting part of the first air bag to prevent the box culvert to be placed from sinking.
6. The box culvert floating installation method according to claim 5, wherein when the lifting force of the crane ship on the box culvert to be placed reaches a certain value, the exhaust of the first air bag is stopped, so that the box culvert to be placed sinks under the action of self gravity.
7. The box culvert floating installation method of claim 6 wherein the crane ship performs attitude adjustment of the box culvert to be placed when the box culvert to be placed is submerged to a distance from a water bed.
8. The box culvert floating installation method according to claim 1 or 7, wherein a measuring tower is installed at the top of the box culvert to be placed, a GPS is installed on the measuring tower, and the position of the box culvert to be placed is determined by detecting the position of the GPS in the floating and/or sinking and/or placing process of the box culvert to be placed.
9. The box culvert floating installation method according to claim 8, wherein before the box culvert to be placed is filled with water, distances between each corner of the top surface of the box culvert to be placed and the GPS are measured respectively by using a total station, and the relative positional relationship between each corner of the top surface of the box culvert to be placed and the GPS is obtained.
10. The box culvert floating installation method according to claim 1, wherein the positioning ship is provided with a first fixed pulley, a hanging ring arranged at the front end of the placed box culvert is connected with a second fixed pulley, and a steel wire rope of the winch sequentially bypasses the first fixed pulley and the second fixed pulley to be connected with the hanging ring at the rear end of the box culvert to be placed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410489082.4A CN118186954A (en) | 2024-04-23 | 2024-04-23 | Box culvert floating transportation installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410489082.4A CN118186954A (en) | 2024-04-23 | 2024-04-23 | Box culvert floating transportation installation method |
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| Publication Number | Publication Date |
|---|---|
| CN118186954A true CN118186954A (en) | 2024-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410489082.4A Pending CN118186954A (en) | 2024-04-23 | 2024-04-23 | Box culvert floating transportation installation method |
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| Country | Link |
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| CN (1) | CN118186954A (en) |
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- 2024-04-23 CN CN202410489082.4A patent/CN118186954A/en active Pending
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