CN110004933B - Underwater broken stone foundation bed laying device and method - Google Patents
Underwater broken stone foundation bed laying device and method Download PDFInfo
- Publication number
- CN110004933B CN110004933B CN201910055359.1A CN201910055359A CN110004933B CN 110004933 B CN110004933 B CN 110004933B CN 201910055359 A CN201910055359 A CN 201910055359A CN 110004933 B CN110004933 B CN 110004933B
- Authority
- CN
- China
- Prior art keywords
- sliding rail
- chute
- ship body
- buoyancy tank
- ship
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000004575 stone Substances 0.000 title claims description 59
- 238000010276 construction Methods 0.000 claims abstract description 40
- 238000007667 floating Methods 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 241000406668 Loxodonta cyclotis Species 0.000 abstract description 9
- 239000003921 oil Substances 0.000 description 41
- 230000001105 regulatory effect Effects 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 6
- 230000008602 contraction Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009430 construction management Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 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
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
-
- 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
- E02D15/10—Placing gravel or light material under water inasmuch as not provided for elsewhere
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
The invention provides an underwater macadam foundation bed laying device and method, comprising a ship body, wherein a conveying trolley is arranged on the ship body and is driven by a driving device to slide along the length direction of the ship body, a chute is arranged on the conveying trolley, the top end of the chute is provided with a feeding port, and the bottom end of the chute is close to the water bottom; at least one conveyer belt for feeding the conveying trolley is also arranged; the positions of the ship bow and the ship stern are provided with buoyancy tank sliding rails which are connected with the ship in a sliding way, lifting positioning piles are arranged on the two buoyancy tank sliding rails and the ship body; the floating box sliding rail is of a folding structure. Through adopting two folding buoyancy tank slide rails and hull alternately through the locating pile location and the relative slip's scheme, after the construction of riprap accomplished an district, can be through reciprocating removal locating pile and hull realization have the continuous motion of accurate direction to avoid moving the hull at every turn and all need to fix a position the hull again, realize the construction of high-accuracy continuous "Z" font riprap paving through the elephant trunk.
Description
Technical Field
The invention relates to the field of underwater engineering construction, in particular to an underwater broken stone foundation bed laying device and an underwater broken stone foundation bed laying method.
Background
The immersed tube method is a construction method for building tunnels under water. The immersed tube tunnel is an underwater tunnel constructed by respectively floating a plurality of prefabricated sections to the sea surface (river surface) site and arranging the prefabricated sections in the dredged foundation tank one by one in a sinking way. In order to avoid local high points of the foundation, the bottom plate of the immersed tube is uniformly stressed, a high-precision leveling broken stone cushion layer is designed between the bottom plate and the foundation to serve as a foundation bed, and a special broken stone cushion layer laying ship with high leveling precision is required to perform construction.
A representative vessel is the dynamically positioned straight drop tube riprap "flinstone" under the DEME company group flag, which is the largest riprap in the world. The ship adopts DP/DT dynamic positioning, does not need the assistance of a tugboat, can operate in the range of 500 meters adjacent to the platform structure, and has the operation water depth of 2000m. Measurement systems with active elevation compensation ROV, including multi-beam, echo sounders and on-line processing systems, are considered to be the most advanced in the industry. However, the positioning accuracy of the floating dynamic riprap ship is difficult to reach the cm level, and the traveling direction of the ship and the transverse movement of the riprap pipe are difficult to accurately form a Z-shaped cushion layer. The method is generally only suitable for projects with low requirements on surface layer precision, such as protection of oil platforms, stone throwing protection of large-scale offshore wind power foundations and submarine cables, and is not suitable for laying immersed tube beds.
In the construction of the Korean Busan-Geoje tunnel, a more advanced supporting platform type riprap leveling ship (KUS-ISLAND) is adopted, [ the leveling ship integrates the functions of stone throwing, leveling and detecting, is essentially integrated with a supporting platform structure and a riprap pipe system with a compensation device, and is matched with a development and construction management system, and the platform type laying ship is basically not influenced by waves, waves and currents when in operation because the platform is lifted off the water surface; can be leveled in a floating state when the sea condition is good, and has strong capability of adapting to the working environment. The stone throwing pipe management system can accurately detect and control the elevation and the position of the discharge hole of the material distribution pipe, and the leveling precision is high. The 'KUS-ISLAND' has the comprehensive precision of actually measuring and paving in the still mountain tunnel, and the accumulated elevation and flatness reach +/-40 mm. The method has the defects of extremely high manufacturing cost, and the pile leg needs to be inserted into the range of the tunnel foundation bed groove, so that the foundation is damaged to a certain extent.
Chinese patent document CN107489154A describes a deep sea bed leveling construction method, which achieves stone throwing through movement of a ship body, and has the problems that the ship body is affected by sea waves in the moving process, and the construction precision is not high. Chinese patent document CN 208328938U describes a riprap leveling device in which a frame-type platform is provided to realize a X, Y-directional travel of a riprap pipe, thereby realizing a "zigzag" shaped riprap. However, by adopting the scheme, the hull needs to be integrally moved after finishing a construction area, and the hull needs to be repositioned, and in the repositioning process, the positioning accuracy of the GPS needs to be relied on, so that the problems of low positioning speed and poor positioning accuracy exist. Further, although a scheme of performing stroke adjustment by repeatedly expanding and contracting the balance pipe by the hydraulic cylinder is described therein, it is difficult to keep the stone throwing pipe vertical due to the influence of water flow and wind and wave, and although an inclinometer is described in the specification, it is not described how to correct the inclination degree of the stone throwing pipe according to the inclination degree to ensure the flatness of the foundation bed. Further, since the hydraulic cylinders are underwater and each hydraulic cylinder is provided with an oil inlet pipe and an oil return pipe, accurate control of the hydraulic cylinders is very difficult, and the lifting control of the stone throwing pipe is very troublesome due to the fact that more hydraulic oil pipes are used. Furthermore, the above document also describes that the foundation bed is scraped with a flattening head, but as the length of the riprap tube increases, the bending deformation of the riprap tube increases, and the flattening accuracy of this solution is difficult to control.
Disclosure of Invention
The invention aims to solve the technical problem of providing the underwater broken stone foundation bed laying device and the underwater broken stone foundation bed laying method, which can realize continuous stone throwing construction along the slide rail with higher precision, do not need repeated positioning, reduce repeated positioning errors and improve construction precision; in the preferred scheme, the elevation and the inclination angle of the discharge hole at the bottom of the chute can be respectively adjusted so as to improve the control precision; the control difficulty of the hydraulic cylinder positioned under water can be reduced, and particularly, complex control pipelines can be reduced; the leveling of the broken stone foundation bed can be realized without depending on the rigidity of the chute.
In order to solve the technical problems, the invention adopts the following technical scheme: the underwater macadam foundation bed laying device comprises a ship body, wherein a conveying trolley is arranged on the ship body and driven by a driving device to slide along the length direction of the ship body, a chute is arranged on the conveying trolley, the top end of the chute is provided with a feeding port, and the bottom end of the chute is close to the water bottom; at least one conveyer belt for feeding the conveying trolley is also arranged;
the positions of the ship bow and the ship stern are provided with buoyancy tank sliding rails which are connected with the ship in a sliding way, lifting positioning piles are arranged on the two buoyancy tank sliding rails and the ship body;
the floating box sliding rail is of a folding structure.
In the preferred scheme, positioning pile locking devices are arranged at positions, close to two ends, of the floating box sliding rail, and positioning piles are arranged in the positioning pile locking devices in a lifting mode;
at least two spud locking devices and spuds are also provided on the hull.
In the preferable scheme, at least one folding joint is arranged on the buoyancy tank sliding rail, the folding buoyancy tank sliding rail is connected through a rotating shaft, a rack and a sliding rail are arranged on one side, close to the ship body, of the buoyancy tank sliding rail, a sliding gear driven to rotate by a driving device is arranged on the ship body, and the sliding gear is meshed with the rack.
In the preferable scheme, a lifting rack capable of lifting is further arranged at the folding position of the floating box sliding rail, and the lifting rack falls to the folding position and is parallel to the rack in the state that the floating box sliding rail is opened; the lifting rack is arranged in parallel or coaxially with the axis of the rotating shaft through at least one vertical shaft, and lifting is realized through a manual work, an electric hoist or a hydraulic cylinder.
Two fixing plates are fixedly arranged on the back of the folding position of the two sections of the floating box slide rails, and when the floating box slide rails are unfolded, the two fixing plates are contacted and fixedly connected through bolts.
In the preferred scheme, the sliding rail is of a structure protruding out of the outer wall, a sliding rail space for accommodating the sliding rail is arranged at the corresponding position of the ship body and is used for forming a structure mutually buckled with the sliding rail, and a guide wheel is arranged between the sliding rail and the inner wall of the sliding rail space;
the sliding rail is connected with and disconnected from the hull by adjusting the draft between the floating box sliding rail and the hull.
In the preferred scheme, the slide pipes are a first slide pipe and a second slide pipe which are mutually sleeved;
the first chute is connected with the second chute in a lifting way, and a discharge hole adjusting device is arranged at the bottom of the second chute;
a plurality of hoisting devices are arranged on the conveying trolley, and the ends of the steel wire ropes of the hoisting devices are connected with the second slide pipes; and controlling the lifting of the second chute through a winding device.
In the preferred scheme, in the discharge port adjusting device, a discharge port sleeve is movably sleeved with a second chute, a plurality of upper fixing frames extending outwards are arranged on the outer wall of the second chute, a plurality of lower fixing frames extending outwards are correspondingly arranged on the outer wall of the discharge port sleeve, and an inclination angle adjusting oil cylinder is arranged between the upper fixing frames and the lower fixing frames;
the discharge hole sleeve is also provided with a first inclination sensor;
a distance sensor is arranged at the bottom of the lower fixing frame and used for detecting the distance from the discharge hole sleeve to the bottom of the foundation bed;
the oil ports at two ends of the inclination angle adjusting oil cylinder are connected with an inclination angle reversing valve, the inclination angle reversing valve is respectively connected with an oil inlet pipe and an oil return pipe, and a second flow valve and a second one-way valve are arranged on the oil inlet pipe;
the oil inlet pipes are connected with a multi-position distribution electromagnetic valve which is connected with an oil supply pipe.
In the preferred scheme, a vibrating device is arranged on the outer wall of the discharge hole sleeve; the structure of the vibration device is as follows: the outer wall of the discharge hole sleeve is provided with a hydraulic motor which is connected with the eccentric block.
In the preferred scheme, one side of a foldable end of the floating box sliding rail is provided with a floating box propelling device;
the first chute is also provided with a stone detection device for detecting the loading height of stones;
the first chute is also provided with a GPS positioning device 103;
and a total station prism is further arranged on the outer wall of the first chute.
The method for adopting the underwater macadam foundation bed laying device comprises the following steps:
s1, moving a ship body to a designed position, and positioning the position of a chute on a horizontal plane by using a GPS or Beidou system;
the buoyancy tank sliding rail is unfolded, so that the ship body is positioned at the initial position of the buoyancy tank sliding rail; driving a positioning pile on the floating box slide rail into the water bottom;
s2, controlling the elevation position of a discharge hole at the bottom of the chute by adjusting the lifting of the chute;
s3, a discharge port adjusting device is arranged at the bottom of the chute, an inclination angle adjusting oil cylinder is arranged in the discharge port adjusting device, and levelness of a discharge port at the lowest end of the chute is adjusted;
s4, filling stones into the chute through the conveying belt, and driving the conveying trolley and the chute to slide along the length direction of the ship body when the stones reach a set height, wherein the stones flow out from the lower part of the chute to form a stone ridge belt, namely a stone foundation bed;
s5, after the construction of one row of gravel beds is completed, the ship body moves to the position of the next row through the guide of the floating box sliding rail, and then the paving construction of the gravel beds is carried out;
after the hull reaches the sliding limit position along the buoyancy tank sliding rail, driving the positioning pile on the hull into the water to fix the hull, lifting the positioning pile on the buoyancy tank sliding rail, and sliding the buoyancy tank sliding rail to the initial position along the hull;
and repeating the steps S4-S5 to realize continuous and accurate laying construction of the underwater gravel foundation bed.
According to the underwater gravel foundation bed laying device and method, the two foldable buoyancy tank sliding rails and the ship body are alternately positioned through the positioning piles and slide relatively, after a region is completed through stone throwing construction, continuous movement with accurate guiding can be achieved through the reciprocating movement of the positioning piles and the ship body, the situation that the ship body needs to be positioned again each time when the ship body is moved is avoided, and high-precision continuous Z-shaped stone throwing paving construction is achieved through the slide carriage. The special foldable sliding rail structure is adopted, the end head of the floating box sliding rail can be conveniently fixed on the side of the ship board of the ship body, and the whole movement is convenient. The buoyancy tank propelling device arranged on the buoyancy tank sliding rail can conveniently unfold buoyancy tank sliding rail equipment on a construction site. Through adopting the discharge gate adjusting device structure that has mount, mount and inclination adjustment hydro-cylinder down, except can adjusting the elevation of elephant trunk discharge gate, can also adjust the inclination of elephant trunk discharge gate to make the distance of discharge gate and mud ground in the setting value, can adjust the angle of discharge gate under the circumstances that the elephant trunk produced the slope simultaneously, guarantee discharge gate and mud face parallel and level and guarantee that the distance of discharge gate and mud face keeps the fixed value, thereby guarantee the precision that the building stones was laid. Through the structure that first elephant trunk and second elephant trunk that adopts cup jointed, cooperation hoist device and flexible fixing device, the length of the whole elephant trunk of adjustment that can be convenient to the thickness of accurate control rubble foundation bed. Be provided with building stones detection device in the elephant trunk, guarantee that the quantity of building stones is certain to guarantee that the building stones of discharge gate is unanimous to the earth pressure, can guarantee the precision that the building stones laid. The chute can be controlled to stretch and retract through the winding device, and can be adjusted at any time according to the change of the water depth. Through setting up at telescopic vibrating device of discharge gate, can be through vibration with rubble foundation bed flattening, and need not to rely on the rigidity of elephant trunk self. In the preferred scheme, continuous high-precision stone throwing construction without repeated repositioning is performed, so that the paving speed of the broken stone foundation bed is improved, meanwhile, the paving precision of the broken stone foundation bed is also improved, and the flatness error of the paved broken stone foundation bed can be controlled within 40mm.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic flow chart of the continuous stone throwing construction.
Fig. 2 is a schematic top view of the overall structure of the present invention.
Fig. 3 is a schematic front view of the whole structure of the present invention.
Fig. 4 is a side view of the overall structure of the present invention.
Fig. 5 is a schematic top view of the folding floating box rail according to the present invention.
Fig. 6 is a schematic top view of the floating box rail according to the present invention when unfolded.
Fig. 7 is a B-direction view of fig. 6.
Fig. 8 is a schematic structural view of the connection position of the hull and the pontoon rail according to the invention.
Fig. 9 is a schematic top view of a preferred embodiment of the floating box rail of the present invention.
Fig. 10 is a schematic structural view of a chute and a discharge port adjusting device in the present invention.
Fig. 11 is a top view of a discharge port adjustment device in accordance with the present invention.
Fig. 12 is a top view of the telescopic fixture of the present invention.
Fig. 13 is a schematic view of a hydraulic driving structure of a fixed cylinder in the present invention.
Fig. 14 is a schematic view of a hydraulic driving structure of the tilt cylinder according to the present invention.
Fig. 15 is a schematic view of a hydraulic driving structure of the buoyancy tank propulsion device according to the present invention.
In the figure: the first slide pipe 1, the stone detection device 101, the total station prism 102, the gps positioning device 103, the second slide pipe 2, the hull 3, the rail 31, the slide gear 32, the slide motor 33, the discharge port adjustment device 4, the upper mount 41, the tilt cylinder 42, the tilt direction valve 421, the second flow valve 422, the second check valve 423, the multi-position distribution valve 424, the pressure buffer tank 425, the lower mount 43, the distance sensor 44, the first tilt sensor 45, the discharge port sleeve 46, the vibration device 47, the spud 5, the spud locking device 51, the telescopic fixing device 6, the fixed bracket 61, the fixed cylinder 62, the pressure sensor 621, the first flow valve 622, the first check valve 623, the reversing solenoid 624, the stone foundation 7, the feed port 8, the second conveyor belt 9, the winch 10, the slide pipe adjustment cable 11, the first conveyor 12, the transfer trolley 13, the winch device 14, the pontoon rail 15, the slide rail 151, the 152, the rotating shaft 153, the fixed plate 154, the lifting rack 155, the rack 156, the tank pushing device 16, the pushing head valve 161, the pushing flow valve 162, the pushing flow valve 163, the hydraulic pump 166, the hydraulic pump.
Detailed Description
Example 1:
as shown in fig. 1-4, an underwater macadam foundation laying device comprises a ship body 3, wherein a conveying trolley 13 is arranged on the ship body 3, the conveying trolley 13 is driven by a driving device to slide along the length direction of the ship body 3, a chute is arranged on the conveying trolley 13, the top end of the chute is provided with a feeding port 8, and the bottom end of the chute is close to the water bottom; at least one conveyer belt for feeding the conveying trolley 13 is also arranged;
the ship comprises a ship body 3, a ship stern and a ship head, wherein the ship body 3 is provided with a buoyancy tank sliding rail 15, the buoyancy tank sliding rail 15 is connected with the ship body in a sliding way, and lifting positioning piles 5 are arranged on the two buoyancy tank sliding rails 15 and the ship body 3;
the floating box slide rail 15 is of a folding structure, the end of the floating box slide rail 15 is folded on the side face of the ship body 3 during movement, and the end of the floating box slide rail 15 is unfolded during construction. By the scheme, the construction mode that the buoyancy tank sliding rail 15 and the ship body 3 alternately move along the construction surface is realized, so that repeated positioning is not required each time the ship body is moved, and the construction efficiency and the construction precision are greatly improved.
In the preferred scheme as shown in fig. 2, the positions of the buoyancy tank sliding rails 15 close to two ends are provided with positioning pile locking devices 51, and the positioning piles 5 are arranged in the positioning pile locking devices 51 in a lifting manner; the cross section of the positioning pile locking device 51 is of an annular structure, an opening is formed in the annular structure, a hinged compression block is arranged at the position of the opening, one end of the locking cylinder is hinged with the compression block, the other end of the locking cylinder is connected with the annular structure, and the first chute 1 is loosened or compressed through expansion and contraction of a piston rod of the locking cylinder. The construction method for lifting and driving the positioning pile 5 into the water belongs to the common technology in petroleum and foundation construction, and is not repeated here.
At least two spud locking devices 51 and spud 5 are also provided on the hull 3. By this scheme, when buoyancy tank slide rail 15 and hull 3 are fixed, can obtain more firm support, avoid appearing because of the inaccurate positioning deviation that produces of location.
After the construction of one row of gravel beds 7 is completed, the ship body 3 moves to the position of the next row through the guide of the floating box sliding rail 15, and then the paving construction of the gravel beds is carried out; optionally, the relative sliding between the hull 3 and the pontoon rails 15 is achieved by a winch.
After the hull 3 reaches the sliding limit position along the buoyancy tank sliding rail 15, driving the positioning pile 5 on the hull 3 into the water to fix the hull 3, lifting the positioning pile 5 on the buoyancy tank sliding rail 15, and sliding the buoyancy tank sliding rail 15 to the initial position along the hull 3; the initial position is the position when the hull 3 is positioned at the upper end of the pontoon rail 15 in fig. 1, and the limit position is the position when the hull 3 slides to the lower end of the pontoon rail 15.
In the preferred scheme, as shown in fig. 2 and 5-7, at least one folding joint is arranged on the buoyancy tank sliding rail 15, and two folding joints are preferably adopted, as shown in fig. 2, when the buoyancy tank sliding rail 15 is folded, the foldable ends of the buoyancy tank sliding rail 15 are fixed on two sides of the ship body 3, and at the moment, the conveying trolley 13 and the chute are operated to the middle position of the ship body 3. The folding buoyancy tank sliding rail is connected through a rotating shaft 153, a rack 152 and a sliding rail 151 are arranged on one side of the buoyancy tank sliding rail 15, which is close to the ship body 3, a sliding gear 32 driven by a driving device to rotate is arranged on the ship body 3, and the sliding gear 32 is meshed and connected with the rack 152. In this example, the slip motor 33 is used to drive the slip gear 32 to rotate, and the hydraulic control structure is the same as that in fig. 15.
In the preferred scheme, as shown in fig. 5-7, a lifting rack 155 capable of lifting is further arranged at the folding position of the floating box sliding rail 15, and the lifting rack 155 falls to the folding position and is flush with the rack 152 in the opened state of the floating box sliding rail 15; the lifting rack 155 is used to fill up the rack void in the folded position.
Repeating the steps to realize continuous and accurate laying construction of the underwater gravel foundation bed. By the scheme, the construction mode that the buoyancy tank sliding rail 15 and the ship body 3 alternately move along the construction surface is realized, so that repeated positioning is not required each time the ship body is moved, and the construction efficiency and the construction precision are greatly improved.
Preferably, as shown in fig. 5 and 6, two fixing plates 154 are fixedly arranged on the back of the folding position of the two sections of the floating box slide rails, and when the floating box slide rails are unfolded, the two fixing plates 154 are contacted and fixedly connected through bolts. With this structure, when the floating box rail 15 is unfolded, the folding position of the floating box rail 15 is fixed.
In a preferred embodiment, as shown in fig. 8, the sliding rail 151 has a structure protruding from an outer wall, a sliding rail space for accommodating the sliding rail 151 is provided at a corresponding position of the hull 3, a structure for forming a mutual fastening with the sliding rail 151, and a guide wheel is provided between the sliding rail 151 and an inner wall of the sliding rail space;
the sliding rail 151 is connected with and disconnected from the sliding rail space through adjusting the draft between the buoyancy tank sliding rail 15 and the ship body 3. The floating box slide rail 15 is provided with a draft water level adjusting structure; the draft level adjustment structure includes a weight ballast tank or a water ballast. The water level of the whole buoyancy tank sliding rail 15 is adjusted by increasing or decreasing the weight or adjusting the water level in the cabin. The draft level of the buoyancy tank sliding rail 15 is increased through the draft level adjusting structure, the buoyancy tank sliding rail 15 is moved, the sliding rail 151 enters below the sliding rail space, the draft level of the buoyancy tank sliding rail 15 is reduced, namely, ballast weights of the ballast tanks are taken out until the guide wheels 156 on the sliding rail 151 reliably contact with the sliding rail space, and the sliding gear 32 is meshed with the rack 152; when the buoyancy tank slide rail 15 is separated from the hull 3, the draft is increased through the draft level adjusting structure, namely, the ballast weight of the ballast tank is increased, the buoyancy tank slide rail 15 integrally falls down, and the slide rail 151 is separated from the lower side of the slide rail space. Through the structure, the buoyancy tank sliding rail 15 can be conveniently separated from the ship body.
In the preferred scheme, a buoyancy tank propelling device 16 is arranged on one side of the foldable end of the buoyancy tank sliding rail 15; the buoyancy tank propelling device 16 is driven by a hydraulic motor, and the buoyancy tank propelling device 16 pushes the folding end of the buoyancy tank sliding rail 15 to unfold. As shown in fig. 13, an oil port of the hydraulic motor is connected with a propulsion reversing valve 161 to realize forward and reverse rotation control, a propulsion flow valve 162, a propulsion valve 167, a propulsion overflow valve 163, a hydraulic pump 164 and a filter 165 are sequentially arranged on an oil inlet pipe, and the oil inlet pipe and an oil return pipe are connected into an oil tank 166. The buoyancy tank pushing device 16 can push the buoyancy tank sliding rail 15 to move automatically, so that the buoyancy tank sliding rail 15 is conveniently fixed on the side of the ship body 3, and the buoyancy tank sliding rail 15 is installed on the bow and the stern of the ship body 3 in the construction process.
In the preferred scheme, as shown in figures 3 and 10, the slide pipes are a first slide pipe 1 and a second slide pipe 2 which are sleeved with each other; preferably, the second chute 2 is sleeved outside the first chute 1.
The first chute 1 is connected with the second chute 2 in a lifting way, and a discharge hole adjusting device 4 is arranged at the bottom of the second chute 2;
a plurality of hoisting devices 14 are arranged on the conveying trolley 13, and the ends of steel wires of the hoisting devices 14 are connected with the second chute 2; the lifting of the second chute 2 is controlled by a hoisting device 14. The lifting of the second chute 2 is controlled through the hoisting device 14, and the elevation position of the discharge hole at the bottom of the second chute 2 is controlled, wherein the elevation position is the thickness of the crushed stone foundation bed 7. I.e. the height from the discharge opening to the mud is the thickness of the crushed stone bed 7.
In the preferred scheme, as shown in fig. 3, 12 and 13, a telescopic fixing device 6 is fixedly arranged on a second chute 2, a fixing bracket 61 of the telescopic fixing device 6 is fixedly connected with the second chute 2, one or more fixing cylinders 62 are fixedly arranged on the fixing bracket 61, a clamping piece is arranged at the front end of a piston rod of the fixing cylinder 62, and passes through the second chute 2 to be in contact with the outer wall of the first chute 1 so as to fix the second chute 2;
a return spring is arranged in the fixed cylinder 62, an oil port of the fixed cylinder 62 is connected with an oil inlet pipe and a first oil return pipe through pipelines, the oil inlet pipe and the oil return pipe are connected with a reversing electromagnetic valve 624, and the reversing electromagnetic valve 624 is connected with an oil supply pipe and a second oil return pipe;
a first flow valve 622 and a first check valve 623 are provided on the oil inlet pipe;
a pressure sensor 621 is arranged on the pipeline;
the reversing solenoid valve 624 has two positions, each position has a communication passage and a stop position, and the positions of the communication passages and the stop positions in the two positions are opposite. With this structure, the continuous holding force of the hoisting device 14 is avoided, and especially in the deep water working condition, the influence of the elastic expansion and contraction of the steel wire rope on the height position of the second chute 2 is avoided.
In the preferred solution, as shown in fig. 10 and 11, in the discharge port adjusting device 4, a discharge port sleeve 46 is movably sleeved with the second chute 2, a plurality of upper fixing frames 41 extending outwards are arranged on the outer wall of the second chute 2, a plurality of lower fixing frames 43 extending outwards are correspondingly arranged on the outer wall of the discharge port sleeve 46, and an inclination angle adjusting oil cylinder 42 is arranged between the upper fixing frames 41 and the lower fixing frames 43;
the discharge hole sleeve 46 is also provided with a first inclination sensor 45;
a distance sensor 44 is arranged at the bottom of the lower fixing frame 43 and is used for detecting the distance from the discharge hole sleeve 46 to the bottom of the foundation bed;
according to the feedback of the first inclination sensor 45, the relevant inclination adjusting oil cylinder 42 is controlled to stretch and retract, so that the inclination angle of the bottom of the discharge port sleeve 46 is adjusted, and the bottom of the adjustment discharge port sleeve 46 is parallel to the bottom of the foundation bed.
In a preferred embodiment, the distance sensor 44 is used to detect the distance of the outlet sleeve 46 from the bottom of the bed; the number of the lower fixing frames 43 is four, and the number of the upper fixing frames 41, the number of the distance sensors 44 and the number of the inclination angle adjusting cylinders 42 are correspondingly four; in the paving process, at least one distance sensor 44 detects the distance of the mud land, at least one distance of the gravel bed 7 is detected, and the data of the mud land and the distance are differenced to obtain the paving height data of the gravel bed 7 so as to carry out fine adjustment by controlling the expansion and contraction of the inclination angle adjusting oil cylinder 42;
after at least one row of gravel foundation 7 is paved, the two distance sensors 44 detect the distance of the mud land, the obtained data are differenced, so that whether the discharge port is inclined or not can be obtained, and then the data are further verified by the first inclination sensor 45, and fine adjustment is performed by controlling the expansion and contraction of the inclination adjusting oil cylinder 42;
the other two distance sensors 44 detect the distance between the gravel beds 7, and the obtained data are differenced to determine whether the leveling operation needs to be started, and if so, the surface of the gravel beds 7 is leveled.
In a preferred embodiment, as shown in fig. 10, a vibration device 47 is provided on the outer wall of the outlet sleeve 46; the vibrating device 47 has the structure that: the outer wall of the discharge port sleeve 46 is provided with a hydraulic motor which is connected with an eccentric block. When the gravel bed 7 needs to be leveled, the hydraulic motor is started, the chute moves along the position needing to be leveled, and the gravel bed 7 is leveled better in a vibration mode. Further preferably, as shown in fig. 8, the vibration means 47 are arranged at 90 degrees apart along the circumference at the outer wall of the spout sleeve 46 to further improve the leveling efficiency by controlling to realize circular, elliptical or linear vibration. The vibration device 47 is arranged to enable the leveling of the crushed stone foundation bed 7 to be free from depending on the rigidity of the chute, particularly the chute adopts a telescopic structure, and the scheme of adopting the vibration device 47 has greater advantages under the working condition that a large gap is formed between the first chute 1 and the second chute 2.
In the preferred scheme, as shown in fig. 14, oil ports at two ends of an inclination angle adjusting oil cylinder 42 are connected with an inclination angle reversing valve 421, the inclination angle reversing valve 421 is respectively connected with an oil inlet pipe and an oil return pipe, and a second flow valve 422 and a second one-way valve 423 are arranged on the oil inlet pipe;
the plurality of oil inlet pipes are connected to a multi-position distribution solenoid valve 424, and the multi-position distribution solenoid valve 424 is connected to an oil supply pipe.
According to the data to be regulated, the number and the regulating parameters of the corresponding dip regulating oil cylinders 42 to be regulated are obtained, the distribution electromagnetic valves 424 are sequentially switched to the oil paths of the corresponding dip regulating oil cylinders 42, and the expansion and contraction of the dip regulating oil cylinders 42 are regulated through the dip reversing valves 421. During the adjustment, feedback is provided via the first tilt sensor 45. Or feedback is performed through the distance sensor 44, and the detection accuracy of the distance sensor 44 is within 2mm by adopting an ultrasonic or sonar sensor. Meets the precision control requirement in the example.
Preferably, as shown in fig. 10, a stone detecting device is further provided on the first chute for detecting the loading height of stone; the amount of the stones is ensured to be certain, so that the pressure of the stones at the discharge hole to the ground is ensured to be consistent, and the accuracy of stone laying is ensured.
The first chute is also provided with a GPS positioning device 103; this is used to determine the spatial position of the first chute 1 on the horizontal plane.
And a total station prism is further arranged on the outer wall of the first chute.
Example 2:
the method for adopting the underwater macadam foundation bed laying device comprises the following steps:
s1, moving a ship body 3 to a designed position, and positioning the position of a chute on a horizontal plane by using a GPS or Beidou system;
the buoyancy tank slide rail 15 is unfolded, so that the ship body 3 is positioned at the initial position of the buoyancy tank slide rail 15; driving the positioning pile 5 on the floating box slide rail 15 into the water bottom;
s2, controlling the elevation position of a discharge hole at the bottom of the chute by adjusting the lifting of the chute;
s3, a discharge port adjusting device 4 is arranged at the bottom of the chute, an inclination angle adjusting oil cylinder 42 is arranged in the discharge port adjusting device 4, and levelness of a discharge port at the lowest end of the chute is adjusted;
s4, filling stones into the chute through the conveying belt, and driving the conveying trolley 13 and the chute to slide along the length direction of the ship body 3 when the stones reach a set height, wherein the stones flow out from the lower part of the chute to form a stone ridge belt, namely a stone foundation bed 7;
in a preferred embodiment, as shown in fig. 2, a rail 31 is provided along the length or width direction of the hull 3, the trolley 13 is slidably mounted on the rail 31, and winches 10 are provided at positions at both ends of the rail 31 for driving the trolley 13 to slide along the rail 31;
the first conveyer belt 12 is arranged in parallel with the track 31, the second conveyer belt 9 is arranged on the conveying trolley 13, the inlet end of the second conveyer belt 9 is positioned below the first conveyer belt 12, and the outlet end of the second conveyer belt 9 is positioned above the feeding port 8. The first conveyor belt 12 is provided with a discharge hopper which moves along with the second conveyor belt 9 to feed the second conveyor belt 9. With this structure, continuous supply of the stone to the feed port 8 is achieved.
S5, after the construction of one row of gravel beds 7 is completed, the ship body 3 moves to the position of the next row through the guide of the buoyancy tank sliding rail 15, and then the paving construction of the gravel beds is carried out;
after the hull 3 reaches the sliding limit position along the buoyancy tank sliding rail 15, driving the positioning pile 5 on the hull 3 into the water to fix the hull 3, lifting the positioning pile 5 on the buoyancy tank sliding rail 15, and sliding the buoyancy tank sliding rail 15 to the initial position along the hull 3; the initial position is the position when the hull 3 is positioned at the upper end of the pontoon rail 15 in fig. 1, and the limit position is the position when the hull 3 slides to the lower end of the pontoon rail 15.
And repeating the steps S4-S5 to realize continuous and accurate laying construction of the underwater gravel foundation bed.
The foregoing embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without collision. The protection scope of the present invention is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this invention are also within the scope of the invention.
Claims (7)
1. An underwater macadam foundation laying device comprises a ship body (3) and is characterized in that: a conveying trolley (13) is arranged on the ship body (3), the conveying trolley (13) is driven by a driving device to slide along the length direction of the ship body (3), a chute is arranged on the conveying trolley (13), the top end of the chute is provided with a feeding port (8), and the bottom end of the chute is close to the water bottom; at least one conveyer belt for feeding the conveying trolley (13) is also arranged; the ship comprises a ship body (3), a ship stem and a ship stern, wherein buoyancy tank sliding rails (15) are arranged at the positions of the ship body (3), the buoyancy tank sliding rails (15) are connected with the ship body in a sliding manner, and lifting positioning piles (5) are arranged on the two buoyancy tank sliding rails (15) and the ship body (3); the floating box sliding rail (15) is of a folding structure;
the positions, close to the two ends, of the floating box sliding rail (15) are provided with positioning pile locking devices (51), and the positioning piles (5) are arranged in the positioning pile locking devices (51) in a lifting mode; at least two positioning pile locking devices (51) and positioning piles (5) are also arranged on the ship body (3);
at least one folding joint is arranged on the buoyancy tank sliding rail (15), the folding buoyancy tank sliding rail is connected through a rotating shaft (153), a rack (152) and a sliding rail (151) are arranged on one side, close to the ship body (3), of the buoyancy tank sliding rail (15), a sliding gear (32) driven by a driving device to rotate is arranged on the ship body (3), and the sliding gear (32) is meshed and connected with the rack (152);
a lifting rack (155) capable of lifting is further arranged at the folding position of the floating box sliding rail (15), and the lifting rack (155) falls to the folding position to be flush with the rack (152) in the unfolded state of the floating box sliding rail (15);
two fixing plates (154) are fixedly arranged on the back of the folding position of the two sections of the floating box slide rails, and when the floating box slide rails are unfolded, the two fixing plates (154) are contacted and fixedly connected through bolts.
2. An underwater macadam foundation laying apparatus as claimed in claim 1, wherein: the sliding rail (151) is of a structure protruding out of the outer wall, a sliding rail space for accommodating the sliding rail (151) is arranged at the corresponding position of the ship body (3), a structure for mutually buckling with the sliding rail (151) is formed, and a guide wheel is arranged between the sliding rail (151) and the inner wall of the sliding rail space; the sliding rail (151) is connected with and disconnected from the sliding rail space through adjusting the draft between the buoyancy tank sliding rail (15) and the ship body (3).
3. An underwater macadam foundation laying apparatus as claimed in claim 1, wherein: the slide pipes are a first slide pipe (1) and a second slide pipe (2) which are sleeved with each other; the first chute (1) is connected with the second chute (2) in a lifting way, and a discharge hole adjusting device (4) is arranged at the bottom of the second chute (2); a plurality of hoisting devices (14) are arranged on the conveying trolley (13), and the end heads of the steel wire ropes of the hoisting devices (14) are connected with the second slide pipes (2); the lifting of the second chute (2) is controlled by a hoisting device (14).
4. An underwater macadam foundation laying device as claimed in claim 3, wherein: in the discharge hole adjusting device (4), a discharge hole sleeve (46) is movably sleeved with a second chute (2), a plurality of upper fixing frames (41) extending outwards are arranged on the outer wall of the second chute (2), a plurality of lower fixing frames (43) extending outwards are correspondingly arranged on the outer wall of the discharge hole sleeve (46), and an inclination angle adjusting oil cylinder (42) is arranged between the upper fixing frames (41) and the lower fixing frames (43); a first inclination sensor (45) is also arranged on the discharge hole sleeve (46);
a distance sensor (44) is arranged at the bottom of the lower fixing frame (43) and is used for detecting the distance from the discharge hole sleeve (46) to the bottom of the foundation bed; the oil ports at two ends of the inclination angle adjusting oil cylinder (42) are connected with an inclination angle reversing valve (421), the inclination angle reversing valve (421) is respectively connected with an oil inlet pipe and an oil return pipe, and a second flow valve (422) and a second one-way valve (423) are arranged on the oil inlet pipe; the plurality of oil inlet pipes are connected with a multi-position distribution electromagnetic valve (424), and the multi-position distribution electromagnetic valve (424) is connected with an oil supply pipe.
5. An underwater macadam foundation bed laying apparatus as claimed in claim 4, wherein: a vibrating device (47) is arranged on the outer wall of the discharge hole sleeve (46); the structure of the vibration device (47) is as follows: the outer wall of the discharge hole sleeve (46) is provided with a hydraulic motor which is connected with the eccentric block.
6. An underwater macadam foundation laying device as claimed in claim 3, wherein: a buoyancy tank propelling device (16) is arranged at one side of the foldable end of the buoyancy tank sliding rail (15); the first chute is also provided with a stone detection device for detecting the loading height of stones; the first chute is also provided with a GPS positioning device 103;
and a total station prism is further arranged on the outer wall of the first chute.
7. A method of using the underwater macadam foundation laying device as claimed in any one of claims 1 to 6, comprising the steps of:
s1, moving a ship body (3) to a designed position, and positioning the position of a chute on a horizontal plane by using a GPS or Beidou system; the buoyancy tank sliding rail (15) is unfolded, so that the ship body (3) is positioned at the initial position of the buoyancy tank sliding rail (15); driving a positioning pile (5) on the floating box sliding rail (15) into the water bottom;
s2, controlling the elevation position of a discharge hole at the bottom of the chute by adjusting the lifting of the chute;
s3, a discharge port adjusting device (4) is arranged at the bottom of the chute, an inclination angle adjusting oil cylinder (42) is arranged in the discharge port adjusting device (4), and levelness of a discharge port at the lowest end of the chute is adjusted;
s4, filling stones into the chute through the conveying belt, and driving the conveying trolley (13) and the chute to slide along the length direction of the ship body (3) when the stones reach a set height, wherein the stones flow out from the lower part of the chute to form a stone ridge belt, namely a stone foundation bed (7);
s5, after the construction of one row of gravel beds (7) is completed, the ship body (3) moves to the position of the next row through the guide of the floating box sliding rail (15), and then the paving construction of the gravel beds is carried out;
after the hull (3) reaches a sliding limit position along the buoyancy tank sliding rail (15), driving the positioning pile (5) on the hull (3) into the water to fix the hull (3), lifting the positioning pile (5) on the buoyancy tank sliding rail (15), and sliding the buoyancy tank sliding rail (15) to an initial position along the hull (3);
and repeating the steps S4-S5 to realize continuous and accurate laying construction of the underwater gravel foundation bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910055359.1A CN110004933B (en) | 2019-01-21 | 2019-01-21 | Underwater broken stone foundation bed laying device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910055359.1A CN110004933B (en) | 2019-01-21 | 2019-01-21 | Underwater broken stone foundation bed laying device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110004933A CN110004933A (en) | 2019-07-12 |
| CN110004933B true CN110004933B (en) | 2024-03-01 |
Family
ID=67165430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910055359.1A Active CN110004933B (en) | 2019-01-21 | 2019-01-21 | Underwater broken stone foundation bed laying device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110004933B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377676B (en) * | 2020-11-20 | 2022-03-15 | 中船华南船舶机械有限公司 | Method for laying submarine pipeline |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI0402366A (en) * | 2004-06-21 | 2006-01-31 | Jaime Zamai | System to improve river runoff to prevent flooding and flooding |
| CN103924597A (en) * | 2013-01-10 | 2014-07-16 | 中交第一航务工程局有限公司 | Platform type riprap leveling barge and construction method thereof |
| CN104652348A (en) * | 2015-02-16 | 2015-05-27 | 中交一航局第一工程有限公司 | Deep-water foundation bed rock throwing system |
| CN205998104U (en) * | 2016-08-18 | 2017-03-08 | 杨木超 | Extension type launches operation at sea platform |
| CN107829433A (en) * | 2017-11-03 | 2018-03-23 | 中交第二航务工程局有限公司 | Integrate the multi-functional leveling ship of chute jackstone and base bed flattening |
| CN209620027U (en) * | 2019-01-21 | 2019-11-12 | 中交第二航务工程局有限公司 | Underwater rubble bedding laying apparatus |
-
2019
- 2019-01-21 CN CN201910055359.1A patent/CN110004933B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI0402366A (en) * | 2004-06-21 | 2006-01-31 | Jaime Zamai | System to improve river runoff to prevent flooding and flooding |
| CN103924597A (en) * | 2013-01-10 | 2014-07-16 | 中交第一航务工程局有限公司 | Platform type riprap leveling barge and construction method thereof |
| CN104652348A (en) * | 2015-02-16 | 2015-05-27 | 中交一航局第一工程有限公司 | Deep-water foundation bed rock throwing system |
| CN205998104U (en) * | 2016-08-18 | 2017-03-08 | 杨木超 | Extension type launches operation at sea platform |
| CN107829433A (en) * | 2017-11-03 | 2018-03-23 | 中交第二航务工程局有限公司 | Integrate the multi-functional leveling ship of chute jackstone and base bed flattening |
| CN209620027U (en) * | 2019-01-21 | 2019-11-12 | 中交第二航务工程局有限公司 | Underwater rubble bedding laying apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 周厚贵等.《海岛开发成陆工程技术》.中国科学技术出版社,2015,(第第1版版),第267-272页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110004933A (en) | 2019-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103924597B (en) | Platform-type jackstone leveling ship and construction method thereof | |
| CN109898514A (en) | The continuous leveling ship of floating underwater rubble bedding | |
| CN104652348A (en) | Deep-water foundation bed rock throwing system | |
| CN109853575A (en) | Floating underwater rubble base bed flattening ship | |
| CN110952561A (en) | Working method of riprap leveling ship | |
| CN109653275A (en) | Underwater rubble base bed flattening machine | |
| CN109853576A (en) | The rubble base bed flattening elephant trunk system and method intelligently adjusted | |
| CN110667787A (en) | A throw stone ship for pile foundation is thrown and is filled | |
| CN110004933B (en) | Underwater broken stone foundation bed laying device and method | |
| CN109898557B (en) | Laying method of underwater broken stone foundation bed | |
| CN209603143U (en) | The continuous leveling ship of floating underwater rubble bedding | |
| AU2014343966B2 (en) | Device and method for arranging a layer of material of predetermined height level on an underwater bottom | |
| CN111980067B (en) | Construction method for long-distance conveying of immersed tube by adopting refuting process | |
| CN112573113A (en) | Riprap leveling ship | |
| CN209620027U (en) | Underwater rubble bedding laying apparatus | |
| AU2014343966A1 (en) | Device and method for arranging a layer of material of predetermined height level on an underwater bottom | |
| CN209555932U (en) | Floating underwater rubble base bed flattening ship | |
| JPS58173223A (en) | Seabed leveller | |
| CN110844008B (en) | Stone throwing device for throwing and tamping integrated ship | |
| CN214356557U (en) | Seabed pipe laying device | |
| CN211228512U (en) | Stone throwing ship for bridge bottom construction | |
| CN211285747U (en) | Underwater foundation bed leveling machine | |
| CN209723080U (en) | Underwater rubble base bed flattening machine | |
| CN212714952U (en) | Leveling frame device of riprap leveling ship | |
| CN213323580U (en) | Posture adjusting device of leveling frame device of riprap leveling ship |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |