CN101837929B - Operation method for lifting fan for barge in shoal area - Google Patents

Abstract

The invention relates to an operation method for lifting a fan for a barge in a shoal area, which comprises the following steps of: 1) performing barge reformation and load tests, including temporarily fixing a crawler crane on the barge and arranging a water storage bin and a suction pump; 2) carrying fan components to the barge; 3) sinking a positioning pile near the foundation of the fan, dragging the barge to an area enclosing by the positioning pile by utilizing a tugboat during flood tide, and anchoring the barge in place; 4) storing water in the water storage bin of the barge for ballast to make the barge properly bottomed; 5) after the barge is stabilized, beginning the lifting operation: a, arranging a tower; b, arranging a hub and two blades; and c, arranging the last one blade;6) after the primary construction operation, pulling the barge near the foundation of another fan by using the tugboat during flood tide; and 7) finishing arrangement of all fans in the primary load, unmooring the barge during the next flood tide to load the next batch of fan components shoreside, and repeating the operation. The operation method is particularly suitable for construction operation in a shallow water area of the shoal area.

Description

A kind of operational method at the shoal area lifting fan for barge

Technical field

The present invention relates to the method for marine lifting operation, particularly about a kind of operational method at the shoal area lifting fan for barge.

Background technology

Coastal beach had both belonged to land, was again the component part in marine site, on the geomorphic geology, was called " intertidal zone ".Because the effect of morning and evening tides and eolian tide, beach is not had by water logging sometimes, surfaces sometimes.Beach is not only being contained various mineral products, and is important land resources.Common beach engineering has: sea wall cofferdam, break-water, pierhead trestle, artificial island, jetty formula sea-going road, submerged pipeline, jacket platform, bridge spanning the sea etc.Because coastal beach and coastal waters wind energy are bigger than landlocked, the construction of mudflat wind electric field also becomes a kind of important means of energy utilization.

But because the landforms characteristics of beach make the wet soft land vehicle in soil not sail into, water level is also stranded easily than ship on the shallow sea, therefore, in this case, makes any construction that has lifting operation of shoal area all become very difficult.Seek a kind of method that is suitable for the shoal area lifting construction, become a kind of technical barrier.

With regard to the shoal area construction, (the climax depth of water 0～1.0m) can adopt the mode of building shoofly, progressively advances the arrival operation field from land, builds operation platform on the spot in extremely shallow district; In the abyssal zone (more than the climax depth of water 5m), do not reveal the beach basically during owing to lowest low water level, can adopt the method for medium and small crane barge operation; Have in the shoal water zone that (climax depth of water 1.0m～5.0m), construction is difficulty comparatively only.

Summary of the invention

To the problems referred to above, the present invention seeks to propose a kind of operational method at the shoal area lifting fan for barge.This method is suitable for the engineer operation of beach Sub-aqua area.

To achieve these goals, the present invention takes following technical scheme: the method that adopts barge to add crawler crane is installed.Concrete steps are:

1) at first barge is carried out structure of modification and load trial: the crawler crane that 1. will satisfy the lifting ability is temporarily fixed on the barge deck, and steel or wood structure bed course are set between crawler crane and barge deck; 2. under the sea situation of 0.5 meter depth of water, carry out maximum lifting loading test at least, make that hull structural strength is good when loading, have enough is that rises after the unloading; 3. water storehouse is set on barge, and settles draft engine;

2) on ship, carry fan assembly, comprise tower tube, cabin, wheel hub and blade, be placed on the barge deck.

3) near shoal area blower fan installation basis, sink in advance and establish some work piles, take advantage of at the incoming tide, utilize tugboat to pull barge into an area surrounded that is positioned, behind assigned address, barge casts anchor in place;

4), let barge other suitable the seat at the end in basis is installed at blower fan through retaining ballast in the barge water storehouse;

5) after barge is in plateau, begin to carry out lifting operation, the step of operation is: 1. joint tower tube down is installed; 2. install joint tower tube (meet the demands if crawler crane hangs height, but tower tube amerism, once mounting); 3. wheel hub is installed is added two blades; 4. last a slice blade is installed;

6) after construction operation is accomplished, take advantage of and utilize work pile, leading sheave and steel rope that barge is drawn at the incoming tide to move on near the other typhoon machine basis;

7) all blower fans in will once loading all after the installation, wait for that once more at the incoming tide barge is weighed anchor, and loads and transports the next batch fan part to the bank, repeats 3 then)～5) go on foot.

In barge ship side both sides 4 cover stability stakes are set, when barge water storehouse ballast power was not enough, the stability stake was inserted under the mud face, and auxiliary barge is sat the end.

The built-in sprinkler of 4 covers is set alow, when barge buoyancy is not enough, washes away absorption mud aboard ship through said sprinkler injection water.

The present invention is owing to take above technical scheme; It has the following advantages: the present invention is directed to beach and do not had by water logging sometimes; Sometimes the characteristics that surface are fixed on the crawler crane that satisfies the lifting ability on the barge deck, take advantage of climax barging construction equipment and material to arrive the blower fan erecting stage; Barge is dilatory in place to the blower foundation next door after casting anchor through tugboat, use the crawler crane of outfit to carry out the blower fan installation exercise.The present invention adopts the mode of in water storehouse, drawing water at seat during the end except that employing shallow-draft barge and crawler crane, and at shipboard be set the auxiliary seat of the stability stake end, also aboard ship assists sprinkler is set, and is used for ship and works the adsorption affinity that destroys mud layer when floating.The present invention is particularly suitable for the construction operation of beach district than the shallow water territory.

Description of drawings

Fig. 1 is the scheme drawing of barge loading fan assembly among the present invention

Fig. 2 is the birds-eye view of Fig. 1

Fig. 3 installs the scheme drawing of joint tower tube down with crawler crane

Fig. 4 is a scheme drawing of installing joint tower tube

Fig. 5 is the scheme drawing that cabin and two blades are installed

Fig. 6 is the scheme drawing that last a slice blade is installed

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is carried out detailed description.

Adopt the shallow water barge to add the concrete steps that crawler crane carries out lifting operation to be:

1) at first barge is carried out structure of modification and load trial: the crawler crane that 1. will satisfy the lifting ability is temporarily fixed on the barge deck, and steel or wood structure bed course are set between crawler crane and barge deck; 2. under the sea situation of 0.5 meter depth of water, carry out maximum lifting loading test at least, make that hull structural strength is good when loading, have enough is that rises after the unloading; 3. water storehouse is set on barge, and settles draft engine.

2) on ship, carry fan assembly, comprise tower tube, cabin, wheel hub and blade, be placed on the barge deck.

3) near shoal area blower fan installation basis, sink in advance and establish some work piles, take advantage of at the incoming tide, utilize tugboat to pull barge into an area surrounded that is positioned.

4) behind assigned address, barge casts anchor in place.

5), let barge other suitable the seat at the end in basis is installed at blower fan through retaining ballast in the lattice of barge storehouse.

6) after barge is in plateau, begin to carry out lifting operation, the step of operation is: 1. joint tower tube down is installed; 2. install joint tower tube (meet the demands if crawler crane hangs height, but tower tube amerism, once mounting); 3. wheel hub is installed is added two blades; 4. last a slice blade is installed.

7) after construction operation is accomplished, take advantage of and utilize work pile, leading sheave and steel rope that barge is drawn at the incoming tide to move on near the other typhoon machine basis.

8) all blower fans in shipment once all after the installation, wait for that once more at the incoming tide barge is weighed anchor, and loads and transports the next batch fan part to the bank, repeats 3 then)～7) go on foot.

In the said process, if barge still can not guarantee enough to stablize after sitting the end, then both sides are provided with 4 cover fluid pressure type or the stakes of mechanical type stability on the quarter, and after barge was in place, the stability stake was inserted sea-bottom shallow stable support is provided.

If it is floating that the barge seat can't be risen by the effect of seabed adsorption affinity at the end, the built-in sprinkler of 4 covers then need be set alow, through hydraulic jetting erosion damage mud face adsorption effect.

Be example with the construction of beach generating field below, the present invention explained in more detail:

Suppose the mudflat wind electric field of the 300MW scale of building, adopt 100 certain homemade 3MW blower fans, select the high-rise pile cap basis for use.Then blower fan lifting construction step is:

1, after each batch blower fan unit was transported to the base, Harbor, the stockyard in the base was deposited and is assembled in advance, because factor such as poor, capable of using time of marine operation environment is short considers that the base is assemblied into four parts with blower fan by land, and reducing marine fixing link,

1) joint tower tube under is about 35m, and weight is about 140t;

2) go up joint tower tube, be about 35m, weight is about 95t;

3) cabin, wheel hub and 2 blades, overall weight 165t, vertical pendulum are placed on the barge;

4) the 3rd blade, length 44m, weight 11t.

2, select 7000t level barging blower fan for use, be equipped with 3800 horsepowers of tugboats, every Ship Transportation 3 cover blower fans, like Fig. 1, shown in 2, concrete arrangement is following: 1 segmentation of upper and lower joint tower tube vertically is arranged on the barge deck, and fixes; After cabin 2, wheel hub and blade 3 assembled, adopt the unit clamp clamping wheel hub, hitch blade with rope simultaneously; Remaining the 3rd blade need adopt stent support, and being the level of state is arranged on the barge deck.

3, during high tide level, with tugboat the barge holder is moved to the installation region, barge casts anchor and stays the position then.

4, utilize draft engine toward the interior water filling of barge water storehouse, barge is suitably sat at the end, to satisfy the stability requirement of installing; If perhaps barge has the stability stake, can put down the stability stake and fix hull.

5, as shown in Figure 3, will save the tower tube down with crawler crane and sling, wait the tower tube be in plumbness and steadily after, will save the flange connection on tower tube and the basis down with bolt.

6, as shown in Figure 4, install joint tower tube.

7, as shown in Figure 5, with crawler crane sling in the cabin, in the lifting process, make already installed two blades up, be that axis is symmetrically distributed with the cabin, in order to guarantee to lift safety, be to take measures to make the temporary transient twist-lock of blade.

8, as shown in Figure 6, last a slice blade adopts at 2 and hangs, and guarantees that in the lifting process blade is in horizontality, and already installed wherein a slice blade tip vertically downward.

Install, select shoal area duration of tide once more, utilize tugboat that barge is dragged to next typhoon machine disposal is installed, repeat above-mentioned work next typhoon machine is installed.

Claims (1)

1. operational method at the shoal area lifting fan for barge, the step that comprises is:

1) at first barge is carried out structure of modification and load trial: the crawler crane that 1. will satisfy the lifting ability is temporarily fixed on the barge deck, and steel or wood structure bed course are set between crawler crane and barge deck; 2. under the sea situation of 0.5 meter depth of water, carry out maximum lifting loading test at least, make that hull structural strength is good when loading, have enough is that rises after the unloading; 3. water storehouse is set on barge, and settles draft engine;

2) on ship, carry fan assembly, comprise tower tube, cabin, wheel hub and blade, be placed on the barge deck.

3) near shoal area blower fan installation basis, sink in advance and establish some work piles, take advantage of at the incoming tide, utilize tugboat to pull barge into an area surrounded that is positioned, behind assigned address, barge casts anchor in place;

4) through retaining ballast in the barge water storehouse, let barge the side, basis is installed and suitably sit at the end, and 4 cover stability stakes are set in barge ship side both sides at blower fan, when barge water storehouse ballast power was not enough, the stability stake was inserted under the mud face, assisted barge to sit the end;

5) after barge is in plateau, begin to carry out lifting operation, the step of operation is: 1. joint tower tube down is installed; 2. install joint tower tube, meet the demands if crawler crane hangs height, but tower tube amerism, once mounting; 3. wheel hub is installed is added two blades; 4. last a slice blade is installed;

6) after construction operation is accomplished, take advantage of and utilize work pile, leading sheave and steel rope that barge is drawn at the incoming tide to move on near the other typhoon machine basis; The built-in sprinkler of 4 covers is set simultaneously alow, when barge buoyancy is not enough, washes away absorption mud aboard ship through said sprinkler injection water;

7) all blower fans in will once loading all after the installation, wait for that once more at the incoming tide barge is weighed anchor, and loads and transports the next batch fan part to the bank, repeats 3 then)～5) go on foot.

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