CN102071652A - Method and device for dragging large-tonnage object ashore - Google Patents

Abstract

The invention discloses a method and a device for dragging a large-tonnage object ashore. The method comprises the following steps of: putting the large-tonnage object on a ship steel sliding plate of a ship rail, and dragging the large-tonnage object by using a traction device of a winch until the large-tonnage object is dragged and slipped to the end part of a protruding section of the ship rail; and jacking the large-tonnage object by using a lifting jack to get away from the ship steel sliding plate, withdrawing the ship rail from a shore ground rail, lowering the large-tonnage object to a shore steel sliding plate of the shore rail by using the lifting jack, and dragging the large-tonnage object to the other end of the shore rail by using the traction device of the winch, so that the large-tonnage heavy object is ashore. The device is low in cost; cutting and disassembling cost is greatly saved; meanwhile, the machine-shift cost of large-scale lifting equipment is greatly reduced, and good economic benefits are achieved.

Description

Method and device for dragging large tonnage objects ashore

technical field

The invention belongs to bridge hoisting and transportation construction, and in particular relates to a technology for dragging large-tonnage objects ashore from water.

Background technique

The main technology of demolition of concrete bridges is mainly decomposition and hoisting technology. To achieve high economic and social benefits in bridge demolition, the cost of concrete decomposition and hoisting technology must be weighed. When the existing concrete bridge across the waterway is dismantled, the dismantled components can be transferred from the water to the shore for secondary treatment. If the dismantled components are small tonnage components, conventional lifting equipment such as cranes, mast cranes and floating cranes can be used for transfer. This bridge dismantling method not only requires a lot of concrete decomposition costs, but also requires a lot of transportation. In a certain sense, it is inappropriate for bridge demolition projects without later economic benefits.

In actual bridge dismantling, in order to reduce the expensive cost of cutting and dismantling, it is often considered to dismantle the bridge structure in large sections, so that the dismantled components are of large tonnage (over 50t), and if they are hoisted by large lifting equipment , will inevitably have to pay a greater economic price. How to minimize the cost of cutting and dismantling, and at the same time realize the safe and economical transfer of large-tonnage concrete members to shore, there is currently no effective solution.

Contents of the invention

The object of the present invention is to provide a method and device for dragging large-tonnage objects ashore, so as to solve the above problems.

The method for dragging large-tonnage objects ashore according to the present invention is to arrange two parallel on-board rails on the keel of a flat barge, the on-board rails have an overhanging section stretching out from the outboard of the flat barge, the ground rail on the shore; the overhang of the on-board rails The section is connected with the connecting section of the onshore ground track, and a set of onboard steel slides and onshore steel slides are respectively arranged on the ship's track and the ground track; large-tonnage objects are placed on the shipboard steel slides of the ship's track, and are pulled by the hoist traction device. Large-tonnage objects Drag and slide to the end of the extended section of the track on the ship to stop, use the lifting jack to jack up the large-tonnage object, after it is separated from the steel slide plate on the ship, and after the track on the ship is withdrawn from the ground track on the shore, the lifting jack will lower the large-tonnage object to the shore of the on-shore track On the steel slide, the large-tonnage object is dragged to the other end of the shore track through the hoist traction device again, so as to realize the landing of the large-tonnage heavy object.

The large-tonnage object is placed on the pallet of the steel slide plate on the ship or the pallet of the steel slide plate on the shore to be dragged.

When the elevation of the overhanging section of the track on the ship is inconsistent with the connecting section of the ground track on the shore, by adjusting the loading or unloading of the water tank, sand container or soil container of the flat barge, the height of the flat barge makes the overhanging section of the track on the ship and the shore The ground tracks are at the same elevation.

The device for dragging large-tonnage objects ashore of the present invention includes a winch traction device, and it also includes two on-board rails arranged parallel to the flat barge. The connecting section of the onshore ground track is connected with the extended section of the ship's track; a lifting jack is provided at the junction of the onshore ground track and the ship's track, and a set of shipboard steel slides and shore rails are arranged on the ship's track and the ground track. Steel skateboard.

The steel slide plate on the ship includes a first steel plate, a first PTFE plate is arranged under the first steel plate, and the end of the first steel plate is tilted upward; a first limiting steel plate is arranged under the first steel plate, and the first limiting plate and the track on the ship sides parallel.

The steel slide plate on the shore includes a second steel plate, a second PTFE plate is arranged under the second steel plate, and the end of the second steel plate is tilted upward; a second limiting steel plate is arranged under the second steel plate, and the second limiting steel plate is connected with the ground on the shore. The sides of the tracks are parallel.

The connecting section of the ground track on the shore overlaps and connects with the overhanging section of the track on the ship.

A water tank or a sand container or an earth container is provided on the flat barge.

The ground track on the shore is fixed on the foundation of the onshore track. The foundation of the onshore track is two parallel concrete enlarged foundations. The positioning screws need to be pre-embedded in the foundation, and the surface of the foundation needs to be leveled.

This invention has technical characteristics such as good adaptability, simple structure, convenient manufacture, good operability, safety and reliability, good economy, and good application prospects:

Good adaptability: It is suitable for landing objects on rivers with water transport functions, both for small-tonnage objects and large-tonnage objects; it is suitable for both centralized container landing and concrete and steel structure landing.

The structure of the device is simple: only a simple flat barge, section steel, steel plate combination and commonly used small lifting equipment can realize the function of transferring heavy objects to shore without hoisting equipment.

Easy to make: the parts required by the device are all formed products on the market, which can be realized through reasonable organization.

Good operability: when the traction device is used, only one general commander, one hoist operator, one jack hydraulic pump station operator and two sliding track tracking operators are required to complete the operation smoothly.

Safe and reliable: the whole set of hauling devices are molded products, and the safety of each component of the system assembly is high; there is no need to raise the center for hoisting during the movement of heavy objects ashore, eliminating the risk of hoisting; there is no special process in the construction process, and the working conditions are stable and convenient. Control, construction technology risk is small.

Good economy: On the one hand, the device is mainly composed of market-shaped products, which is easy to assemble and process, and the cost of realizing the device itself is low; on the other hand, it saves a lot of cutting and disassembly costs; The cost of the mechanical shift has very good economic benefits.

Good application prospects: this kind of device provides the possibility for large-segment concrete box girder demolition and landing treatment, and shows good technical characteristics and superior economic performance, which is very suitable for bridge demolition projects without later economic benefits , has a good application prospect. At the same time, this kind of device can also be used in projects such as centralized boxes in ports and wharfs and large-scale steel structures going ashore, greatly expanding its applicable fields.

Description of drawings

Fig. 1 is a schematic plan view of the device for dragging large-tonnage regular objects ashore.

Figure 2. Schematic diagram of the elevation of the device for dragging large tonnage irregular objects ashore.

Figure 3 is an enlarged schematic diagram of the connection plane between the ground track on the shore and the track section on the ship.

Fig. 4 is a large schematic diagram of the connection between the ground track on the shore and the track section on the ship.

As shown in Figure 1 and 2,. For the object on the track, the flat barge 1 is positioned and fixed by the cable device 2, the onboard track 3 is arranged on the flat barge 1, the onboard steel slide 4 is arranged on the onboard track 3, and the heavy object 5 is placed on the onboard steel slide 4, and the onboard track 3 has The overhanging section 3.1 protruding from the outboard of the flat barge ship, the onshore ground track 8 is arranged on the onshore track foundation 6, and the connecting section 8.3 of the onshore ground track 8 is connected with the overhanging section 3.3 of the onboard track 3. In this embodiment, the two onboard The overhanging section 3.1 of the track 3 is embedded in the connecting section 8.3 of the two onshore ground tracks 8, a lifting jack 7 is provided at the junction of the onshore ground track and the onboard track, and an onshore track steel slide plate 9 is set on the onshore track 8. 5. Move to the shore along the track 3 on the ship and the track 8 on the shore sequentially through the traction device 10 of the hoist. It is a schematic diagram of the structure before the heavy object is dragged.

Flat barge 1 needs to have stronger keel 1.1, the water storehouse (or sand, soil container) 1.2 that capacity is enough to adjust water level, when the elevation of track device 3 on board is lower than the altitude of track 8 on shore, water storehouse (or sand, soil container) Soil container) 1.2 needs to reduce emissions; the cable device 2 needs to set the anchor 2.2 at a suitable position on the bank, and connect it with the anchor column 2.3 on the barge through the cable 2.1;

As shown in Figures 3 and 4, the onboard track 3 is composed of a steel frame 3.1 and a stiffening plate 3.2; the onboard steel slide plate 4 on the onboard track includes a steel plate 4.1, and a PTFE plate 4.3 is provided under the steel plate 4.1, and the end of the steel plate is tilted upward Constitute head-up structure 4.4; Steel plate 4.1 is provided with limiting steel plate 4.2, and limiting steel plate 4.2 is parallel to the side of track 3 on board; Shaped steel skeleton 3.1 and stiffening plate 3.2 are the internal structure of track, and the track surface is flat.

One side of the PTFE plate 4.3 is glued to the steel plate 4.1, and the other side is in contact with the upper surface of the rail 3 on the ship by smearing butter. Such a structure is convenient to drag the weight on the shore steel slide device to move on the shore rail device by a small external force. When the weight moves to the turning point, the shore steel slide device should be in place at the position of the jack system first. The limiting steel plate 4.2 is used to limit the steel plate 4.1 from sliding out of the track, and acts as a guide; in this embodiment, the limiting steel plate 4.2 is formed by bending the steel plate 4.1.

The shore track 8 is composed of a steel frame 8.1 and a stiffening plate 8.2; the shore track slide 9 is composed of a steel plate 9.1, a PTFE plate 9.3 is provided under the steel plate 9.1, and the end of the steel plate is tilted upward to form a head-up structure 9.4; Position steel plate 9.2, limit steel plate 9.2 is parallel with the side of track 8 on the bank. The section steel frame 8.1 and the stiffening plate 8.2 in the figure are both internal structures of the track, and the track surface is flat.

As shown in Figures 1 and 2, the hoist traction device 10 includes a steel wire rope 10.1, a hook 10.4, a moving block 10.2, and a hoist device 10.3 in sequence.

During construction: large-tonnage objects are placed on the steel slide plate on the ship’s track, dragged by the traction device of the hoist, and the large-tonnage object is dragged and slipped to the end of the extended section of the ship’s track to stop, and the large-tonnage object is lifted by the lifting jack and separated from it. After the steel slide plate on the ship and the track on the ship are withdrawn from the ground track on the shore, the lifting jack lowers the large-tonnage object onto the steel slide plate on the shore track, and then drags the large-tonnage object to the other end of the on-shore track through the hoist traction device, so as to realize the large-tonnage transportation. Heavy things ashore.

Large-tonnage objects are placed on the pallet of the steel slide on the ship or on the pallet of the steel slide on the shore for dragging.

When the elevation of the overhanging section of the track on the ship is inconsistent with the connecting section of the ground track on the shore, by adjusting the loading or unloading of the water tank, sand container or soil container of the flat barge, the height of the flat barge makes the overhanging section of the track on the ship and the shore The ground tracks are at the same elevation.

Claims (8)

1. implement the dilatory method of debarking of large-tonnage object for one kind, it is two parallel ships to be set get on the right track on dull and stereotyped barge keel, and ship gets on the right track and has overhanging section that stretches out outside the dull and stereotyped barge ship side, on the bank ground rail; Ship gets on the right track overhanging section be connected with the section of linking of ground rail on the bank, ship get on the right track and ground rail on respectively arrange on the cover ship steel slide plate and steel slide plate on the bank; The large-tonnage object is placed on the ship that ship gets on the right track on the steel slide plate, dilatory by the hoist engine draw-gear, the dilatory slippage of large-tonnage object stops to the overhanging section end that ship gets on the right track, utilize the lifting jack with large-tonnage object jack-up, break away from the ship behind the steel slide plate, after ship gets on the right track and withdraws on the bank ground rail, the lifting jack is transferred to the large-tonnage object on the slide plate of steel on the bank of track on the bank, draw the large-tonnage object other end of track ashore by the hoist engine draw-gear once more, thereby realize the disembarkation of large-tonnage weight.

2. implement the method for the dilatory disembarkation of large-tonnage object according to claim 1, it is characterized in that the large-tonnage object places the pallet of steel slide plate aboard ship or draw in the pallet of steel slide plate on the bank.

3. implement the method for the dilatory disembarkation of large-tonnage object according to claim 1, it is characterized in that getting on the right track overhanging section when ship with ground rail on the bank to be connected segment mark high when inconsistent, by the sump of dull and stereotyped barge or husky container or soil container are loaded or the off-loading adjustment, overhanging section of making that ship gets on the right track of the height of dull and stereotyped barge is identical with the absolute altitude of ground rail on the bank.

4. device of implementing the dilatory disembarkation of large-tonnage object, it comprises the hoist engine draw-gear, it is characterized in that it also comprise be provided with dull and stereotyped barge on parallel two ships get on the right track, ship gets on the right track to have and stretches out outward overhanging section of dull and stereotyped barge ship side; Be arranged at ground rail on the bank on the bank, overhanging section of getting on the right track of the linking section of ground rail and ship is connected on the bank; The joining place that gets on the right track of ground track and ship is provided with the lifting jack on the coast, ship get on the right track and ground rail on respectively arrange on the cover ship steel slide plate and steel slide plate on the bank.

5. the device of the dilatory disembarkation of enforcement large-tonnage object as claimed in claim 4 is characterized in that the steel slide plate comprises first steel plate on the ship, and first steel plate has the first tetrafluoro plate, and the end of first steel plate is upturned; First steel plate has the first spacing steel plate, the parallel sided that the first spacing steel plate and ship get on the right track.

6. the device of the dilatory disembarkation of enforcement large-tonnage object as claimed in claim 4 is characterized in that the steel slide plate comprises second steel plate on the bank, and second steel plate has the second tetrafluoro plate, and the end of second steel plate is upturned; Second steel plate has the second spacing steel plate, the second spacing steel plate and the parallel sided of ground rail on the bank.

7. overhanging period overlapping linking that the device of the dilatory disembarkation of enforcement large-tonnage object as claimed in claim 4, the linking section that it is characterized in that ground rail on the bank and ship get on the right track.

8. the device of the dilatory disembarkation of enforcement large-tonnage object as claimed in claim 4 is characterized in that dull and stereotyped barge is provided with sump or husky container or soil container.

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