CN106386621A - Net cage anchoring foundation with plurality of umbrella-shaped trays distributed outside steel pile and construction method of net cage anchoring foundation - Google Patents

Abstract

The invention discloses a net cage anchoring foundation with a plurality of umbrella-shaped trays distributed outside a steel pile and a construction method of the net cage anchoring foundation. The net cage anchoring foundation comprises one hollow steel pipe, a connecting bracket and four umbrella-shaped trays, wherein a bracket is arranged at the upper middle part of the steel pipe; an anchorage hole is formed above the bracket; a support sleeve is arranged at the center of the connecting bracket; the connecting bracket is further provided with four positioning columns which are symmetrically arranged two by two by taking the supporting sleeve as the center; a sleeve is arranged at the center of the bottom of each umbrella-shaped tray; in a working process, the support sleeve sleeves the upper part of the steel pile, and the anchorage hole in the steel pile is bound and fixed with one end of an anchor chain; the four umbrella-shaped trays sleeve a positioning column of the connecting bracket respectively through the sleeve; the steel pipe, the connecting bracket and the four umbrella-shaped trays form the anchoring foundation and the anchoring foundation sinks into a pre-set sea region; the steel pile is knocked into a seabed; and crushed stone bags are put toward openings of the umbrella-shaped trays, and the crushed stone bags press the umbrella-shaped trays to form the net cage anchoring foundation so as to provide an anchorage force. The anchoring foundation provided by the invention is simple in structure, great in whole rigidity and relatively wide in applicable range and can provide a relatively large anchorage force.

Description

It is distributed net cage anchor foundation and its construction method of multiple umbrella pallets outside piling bar

Technical field：

The present invention relates to the anchor system of net cage for sea farming, more particularly, to being distributed multiple umbrella pallets outside a kind of piling bar Net cage anchor foundation and its construction method.

Background technology：

About 16,000,000 hectares of oceanic area within China's 20m isobath, the oceanic area within 40m isobath about 50,000,000 is public Hectare, the development space of sea-farming is huge.But mariculture area of current China is concentrated mainly on the shallow gulf within 15 m isobaths Interior, and more than the 20 m depth of waters marine site utilization rate still less than 1%, far below the U.S., Japan and the level of developed countries such as Norway. Therefore, greatly develop the deep-water net cage culture of more than the 20 m depth of waters, be to solve one of new way of China's food supply guarantee.

However, all suffering from the attack of several Super Typhoons, the seawater cage in typhoon track coverage China coast year Damage is serious, leads to seawater cage culture industry to be in the state of " living at the mercy of the elements " to a certain extent.

Anchor system is foundation in water for the mariculture net cage, plays the fixing, effect of mooring net cage system.Anchoring system System inefficacy in inclement weather can lead to net cage directly to be damaged.If the deep-water net cage culture industry in Hainan Province is at annual superpower In wind in succession the strike of going to wreck property, suffer heavy losses, the disaster-stricken deep water mesh cage of wherein most be because anchor foundation destroy and quilt Blow away damage.Although the cost of anchor foundation accounts for the proportion of whole net cage system total price less, lead to whole after its inefficacy Net cage system is annihilated, and has the important function controlling net cage Existence of Global Stable.

At present, domestic seawater cage anchoring foundation main will have three kinds of modes：Anchor, timber anchor and clump anchor.Wherein ferrum Anchor is referred from the anchoring method of ship, and anchor body uses cast member, and mooring forces are directly proportional to anchor body weight, will obtain enough anchorings Power need to increase investment, and the larger anchor of weight needs special workboat ability operation, and is difficult to be accurately positioned, and advantage is to be used for sea The complex marine site in bottom；Timber anchor price is relatively cheap, typically requires timber stake footpath to be more than 40 cm, embedded depth more than 4.5 M, anchor line are not more than 17 ° with horizontal sea bed angle, but it has construction quality and is difficult to ensure that and the timber corrosion-prone shortcoming of appearance, fits Together in the depth of water shallower and for silt substrate marine site；Clump anchor is moderate, and mooring forces are directly proportional to clump weight, cement Adsorption between pier bottom and sea bed is limited, is susceptible to the phenomena of drag of anchor under severe sea condition, is suitable for husky mud or sand The marine site of matter substrate.

Therefore, on the basis of absorbing existing all kinds of anchor foundation advantages it is necessary to development of Construction is easy, low cost, The big new anchor foundation form of mooring forces.

Content of the invention：

In order to make up the deficiency of prior art problem, it is an object of the invention to provide being distributed multiple umbrella pallets outside a kind of piling bar Net cage anchor foundation and its construction method, its structure is simple, flexible arrangement, and better economy is provided that larger anchor force.

Technical scheme is as follows：

Be distributed the net cage anchor foundation of multiple umbrella pallets outside piling bar it is characterised in that include hollow piling bar, one link Support and four umbrella pallets, piling bar middle and upper part is provided with bracket, is provided with mooring hole above bracket；The described carriage center that links sets There is bearing sleeve pipe, link and symmetrically arranged four locating dowels two-by-two are additionally provided with centered on bearing sleeve pipe on support；Umbrella pallet Umbrella is become by circumferential reinforcement with radial direction reinforcing bar uniform welding, umbrella tray bottom center is provided with sleeve；During work, bearing casing pipe sleeve Live the top of piling bar, fixation is tied in the mooring hole on piling bar and anchor chain one end, four umbrella pallets are respectively fitted over even by sleeve Be in the locating dowel of support, piling bar, link support, four umbrella pallets constitute anchor foundations and sink to and sink down into predetermined maritime area, steel Sea bed is squeezed in stake, throws in rubble bag towards in umbrella pallet mouth, and rubble bag is pushed down umbrella pallet and constituted net cage anchor foundation.

It is distributed the net cage anchor foundation of multiple umbrella pallets it is characterised in that described piling bar is sky outside described piling bar Heart piling bar, its bottom is taper pile top, and piling bar outer wall middle and upper part is provided with bracket, and bracket is by six pieces along annular equally distributed three Angular supporting plate is constituted, and umbrella pallet lower surface is withstood in supporting plate upper end when concordantly working；Piling bar above bracket is provided with mooring hole.

It is distributed the net cage anchor foundation of multiple umbrella pallets it is characterised in that described umbrella pallet outside described piling bar Every radial direction reinforcing bar constitute from the bottom margin bending that is inclined upwardly, every circumferential reinforcement is circular；Circumferential reinforcement welds Upside in radial direction reinforcing bar；Umbrella tray bottom center is provided with annular slab, and annular slab center is provided with sleeve upwards, in annular slab Outer wall is fixed with sleeve outer wall, radial direction reinforcement welding respectively.

It is distributed the net cage anchor foundation of multiple umbrella pallets it is characterised in that described links support outside described piling bar It is overall that along distribution substantially symmetrical about its central axis, its main body is two orthogonal girder steels, is provided with floor between girder steel adjacent two-by-two, even It is that carriage center is provided with bearing sleeve pipe, bearing sleeve pipe and each girder steel upper surface junction are provided with triangle ribbed stiffener；In each girder steel It is provided with wing plate near two ends, wing plate is mutually perpendicular in the horizontal plane with girder steel, is provided with longitudinal determining in wing plate with girder steel point of intersection Position post, locating dowel is hollow steel pipe, and locating dowel top is provided with construction hole.

It is distributed the net cage anchor foundation of multiple umbrella pallets it is characterised in that described links support outside described piling bar On wing plate length be not less than umbrella tray bottom diameter.

It is distributed the net cage anchor foundation of multiple umbrella pallets it is characterised in that described umbrella pallet outside described piling bar On sleeve diameter be more than locating dowel external diameter.

It is distributed the net cage anchor foundation of multiple umbrella pallets it is characterised in that described rubble bag is outside described piling bar Fill block stone, the woven bag of rubble or gunny etc., and the minimum grain size size of filled block stone, rubble is more than ring on umbrella pallet Hole between reinforcing bar and radial direction reinforcing bar.

Be distributed the construction method of the net cage anchor foundation of multiple umbrella pallets outside a kind of piling bar it is characterised in that include as Lower step：

1）, piling bar injection sea bed：The top linking support and entangling based on bearing sleeve pipe piling bar, then one end of anchor chain is tied, It is fixed on the mooring hole of piling bar, then four umbrella pallets are entangled respectively four positioning linking support based on cannulated sleeve Post, and construction auxiliary iron wire is bound on the construction hole of locating dowel, then piling bar is squeezed into sea bed to projected depth；The entering of piling bar Native depth is the distance between taper pile top to triangle supporting plate top；

2）, be thrown into rubble bag and push down umbrella pallet：Construction auxiliary iron wire is stretched and is in vertical line states, along construction auxiliary ferrum The position that silk guides uniformly is thrown into enough rubble bags to construction auxiliary iron wire surrounding, so that rubble bag is equably fallen in four umbrellas In pallet, push down umbrella pallet；

3）, anchor foundation attitude check：Check the sinking attitude of umbrella pallet, if find umbrella pallet run-off the straight, should be past Acclivitous side is thrown into certain rubble bag again, makes umbrella pallet be in horizontality as far as possible；Confirm enough rubbles When bag falls in umbrella pallet and umbrella pallet can undertake set mooring forces, that is, complete the construction operation of net cage anchor foundation.

The present invention compared with prior art, has the advantage that：

1st, piling bar of the present invention squeezes into sea bed to projected depth, and it can bear larger horizontal loading；There is the umbrella of enough ballasts Shape pallet can bear larger vertical load.By piling bar with have after the umbrella tray combination of ballast, can give full play to respective Advantage, can resist the wind wave action of horizontal loading and vertical load random combine；

2nd, the present invention carried umbrella support holder structure is simple, and weight is relatively small, and umbrella pallet is mainly by circumferential reinforcement and radial direction steel Muscle is welded, and can make the net form umbrella of different area according to different mooring forces demands, can catch that quantity is more, cumulative weight Larger rubble bag；

3rd, the ballast of the present invention carried umbrella pallet derives from rubble bag, and rubble packed enter the block stone of certain particle diameter and rubble, Its draw materials conveniently, with low cost；

4th, the present invention can be suitably used for mud, the soft sea bed of husky mud matter, also can be suitably used for the hard such as gravel, soft rock, hard rock seabed, fits Wider with scope；Meanwhile, rigidity is big, resistance to plucking and resistance to capsizing are strong, is provided that larger mooring forces.

Brief description

Fig. 1 is the umbrella pallet top view of the present invention.

Fig. 2 is the umbrella pallet upward view of the present invention.

Fig. 3 is the steel pile structure schematic diagram of the present invention.

Fig. 4 links support schematic diagram for the present invention's.

Fig. 5 be the present invention piling bar with link bracket assembled schematic diagram.

Fig. 6 is the top perspective view of the present invention.

Fig. 7 is the face upwarding stereogram of the present invention.

The use state figure that Fig. 8 is connected with net cage for the present invention.

Description of reference numerals：

1st, circumferential reinforcement；2nd, radial direction reinforcing bar；3rd, sleeve；4th, annular slab；5th, taper pile top；6th, piling bar；7th, supporting plate；8th, mooring hole； 9th, link support；10th, floor；11st, wing plate；12nd, locating dowel；13rd, construction hole；14th, bearing sleeve pipe；15th, triangle ribbed stiffener； 16th, rubble bag；17th, anchor chain；18th, net cage.

Specific embodiment：

Referring to accompanying drawing：

It is distributed the net cage anchor foundation of multiple umbrella pallets, 6, one links support 9 and four including a piling bar outside a kind of piling bar Individual umbrella pallet, the middle and upper part of piling bar 6 is provided with triangle supporting plate 7, links and is provided with bearing sleeve pipe 14 at support 9 axis of symmetry, links It is provided with wing plate 11 and locating dowel 12 near each girder steel two ends of support 9；Umbrella pallet is uniform with radial direction reinforcing bar 2 by circumferential reinforcement 1 It is welded, entirety is axisymmetricly distributed, and is provided with sleeve 3 at umbrella pallet axis of symmetry；It is based on bearing sleeve pipe 14 linking support 9 Entangle the top of piling bar 6, then one end of anchor chain 17 is tied, is fixed on the mooring hole 8 of piling bar 6, then four umbrella supports Disk entangles four locating dowels 12 linking support 9 respectively based on sleeve 3, and it is auxiliary to bind construction on the construction hole 13 of locating dowel 12 Help iron wire, then piling bar 6 is squeezed into sea bed to projected depth, the position guided further along construction auxiliary iron wire assists ferrum to construction Silk surrounding is thrown into enough rubble bags 16, makes rubble bag 16 push down four umbrella pallets, thus forming net cage anchor foundation.

Piling bar 6 bottom is taper pile top 5, pile top cone angle generally 10 ~ 30, makes piling bar be relatively easy to injection sea bed； The middle and upper part of piling bar 6 is symmetrical, be uniformly provided with six blocks of triangle supporting plates 7, and it can stop, catch the bearing sleeve pipe linking support 9 14 bottoms and make piling bar with 9 assemblings that link support formed overall；The top of six blocks of triangle supporting plates 7 is in same level；Steel The top of stake 6 is provided with mooring hole 8, and the anchor chain for mooring net cage uses.May also set up multiple mooring holes 8, convenient construction uses.

Umbrella pallet is integrally axisymmetricly distributed, and is formed with radial direction reinforcing bar 2 uniform welding by circumferential reinforcement 1, and profile is similar to In umbrella；Circumferential reinforcement 1 is rounded, and the shape of radial direction reinforcing bar 2 is followed successively by level and upper curved inclination；Circumferential reinforcement 1 is welded on footpath Top to reinforcing bar 2；After circumferential reinforcement 1 and radial direction reinforcing bar 2 uniform welding, form netted hole；Block stone, rubble in rubble bag 16 Grain size be more than the size of this netted hole, umbrella pallet can effectively catch block stone, rubble, form stable effectively joining Weight.

It is provided with the sleeve 3 of hollow, sleeve 3 bottom is provided with base circle plate 4 at umbrella pallet axis of symmetry；Base circle plate 4 Weld together with sleeve 3, radial direction reinforcing bar 2.The internal diameter of sleeve 3 is more than the external diameter of locating dowel 12.

The net form umbrella of different area can be made according to different mooring forces demands, that is, the area of umbrella pallet is bigger, its energy The quantity catching rubble bag is more, cumulative weight is larger, and the mooring forces that it is provided that are bigger.

Link support 9 entirety along distribution substantially symmetrical about its central axis, its main body is two orthogonal girder steels, between two girder steels Uniformly it is provided with floor 10, at the symmetrical shaft position in middle part, is provided with bearing sleeve pipe 14, bearing sleeve pipe 14 is provided with each girder steel junction Triangle ribbed stiffener 15；It is provided with wing plate 11 near each girder steel two ends, wing plate 11 and girder steel are mutually perpendicular in the horizontal plane, in the wing Plate 11 and girder steel point of intersection are provided with longitudinally perpendicular locating dowel 12, and the top of locating dowel 12 is provided with construction hole 13.

Piling bar 6, umbrella pallet are steel or ferrous material with each part linking support 9, and each part passes through welding even It is connected into entirety；Piling bar 6, umbrella pallet and the intensity linking each part of support 9 and entirety, should be able to undertake all kinds of operating mode Lower chains and pass The mooring forces passed and without flexing and inefficacy.

Rubble bag 16 is to fill block stone, the woven bag of rubble or gunny etc., and the minimum grain size chi of filled block stone, rubble Hole between circumferential reinforcement 1 and radial direction reinforcing bar 2 on the very little pallet more than umbrella；Rubble bag 16 weaves after sinking to marine a period of time Bag or gunny meeting burn into are aging and broken, and final block stone, rubble can freely be scattered and come；As long as the particle diameter chi of block stone, rubble Very little sufficiently large, it does not spill hole between circumferential reinforcement 1 and radial direction reinforcing bar 2, and the stability of umbrella pallet would not be subject to To impact.

Circumferential reinforcement 1 or radial direction reinforcing bar 2 on umbrella pallet, if occur certain under the differential pressure effect of rubble bag 16 Deformation, it does not typically interfere with the normal performance of anchor foundation mooring forces.

Umbrella pallet is in integrally flat axial symmetry umbrella, and its center of gravity is relatively low, and resistance to capsizing is stronger；Umbrella pallet surrounding Certain angle that is inclined upwardly so that the block stone in rubble bag 16, rubble not readily disengage under action of ocean current, umbrella of escaping support Disk body；Preferably, the acclivitous angle of umbrella pallet surrounding（Angle with horizontal plane）Between 10 ~ 30.

It is distributed the construction method of the net cage anchor foundation of multiple umbrella pallets outside a kind of piling bar, be described in detail as follows：

1）, piling bar injection sea bed

The top linking support 9 and entangling based on bearing sleeve pipe 14 piling bar 6, then one end of anchor chain 17 is tied, is fixed on piling bar 6 Mooring hole 8 on, then four umbrella pallets are entangled four locating dowels 12 linking support 9 respectively based on sleeve 3, and fixed Construction auxiliary iron wire is bound on the construction hole 13 of position post 12, then piling bar 6 is squeezed into sea bed to projected depth；The burying of piling bar 6 Depth is the distance between taper pile top 5 to triangle supporting plate 7 top.

During construction, can design, process the steel auxiliary bar with tenon for the leading portion, tenon is inserted the hollow interior of piling bar top Portion, and so that auxiliary bar is connected as a single entity with piling bar 6 using simple rope or engineering glue, it is simultaneously based on anchor chain 17, construction auxiliary Iron wire stands on predetermined sea bed with auxiliary bar vertical for piling bar 6, by hammering auxiliary bar in piling bar 6 injection sea bed；Steel Stake 6 by after injection to projected depth, rotation, twisting auxiliary bar, the simple rope before destruction or engineering glue, extract auxiliary Rod member completes the heavy of piling bar 6 and passes through operation.

Net cage relies primarily on anchor foundation and provides mooring forces, and the deformation to anchor foundation has no special requirements, if piling bar 6 sinks There is the less inclination of amplitude, it is less to normally wielding influence of anchorage effect during passing through.

2）, be thrown into rubble bag and push down umbrella pallet

Construction auxiliary iron wire is stretched and is in vertical line states, assist the position of iron wire guide to construction auxiliary iron wire along construction Surrounding is uniformly thrown into enough rubble bags 16, so that rubble bag 16 is equably fallen in four umbrella pallets, push down umbrella pallet.

In construction, water scope should be entered according to what the diameter of umbrella pallet delimited rubble bag 16.Rubble bag 16 enter water scope, Should be slightly less than centered on vertical line states construction auxiliary iron wire, the circular scope as radius for the umbrella pallet.And rubble bag 16 sinks Put forward sequence, symmetrically, equably should be thrown in centered on the construction auxiliary iron wire of vertical line states, to avoid umbrella pallet in inequality Run-off the straight under even load action；Rubble bag 16 more reasonably stacks shape on umbrella pallet：With applying of vertical line states Symmetry distribution centered on work auxiliary iron wire, middle part is slightly higher, and surrounding is lower slightly, and Mass Distribution is uniform.

3）, anchor foundation attitude check

Check the sinking attitude of umbrella pallet, if find umbrella pallet run-off the straight, should be thrown into again toward acclivitous side Certain rubble bag 16, makes umbrella pallet be in horizontality as far as possible；Confirm that enough rubble bags 16 fall in umbrella pallet And umbrella pallet is when can undertake set mooring forces, that is, complete the construction operation of net cage anchor foundation.

Net cage relies primarily on anchor foundation and provides mooring forces, and the deformation to anchor foundation has no special requirements, if rubble bag 16 ballasts make umbrella pallet that the less inclination of amplitude to occur, and it is less to normally wielding influence of anchorage effect；Due to early stage anchor Chain 17 is connected with mooring hole 8, therefore is not required to send diver to carry out mooring operation under water again.

Piling bar of the present invention can bear larger horizontal loading, have enough ballasts umbrella pallet can bear larger vertical Load, piling bar with have after the umbrella tray combination of ballast, give full play to respective advantage, net cage can be enable to bear larger Random seas load；Umbrella support holder structure is simple, and weight is relatively small, and its ballast derives from rubble bag, and rubble packed enter Block stone and rubble, its draw materials conveniently, with low cost；The present invention can be suitably used for mud, the soft sea bed of husky mud matter, also can be suitably used for sand The hard such as gravel, soft rock, hard rock seabed, the scope of application is wider.The anchor foundation rigidity being carried is big, resistance to plucking and resistance to capsizing are strong, It is provided that larger mooring forces.

The present invention is not limited to above-mentioned specific embodiment, according to the above, according to the ordinary technical knowledge of this area And customary means, under the premise of without departing from the present invention above-mentioned basic fundamental thought, the present invention can also make other various ways Equivalent modifications, replacement or change, be within the scope of the present invention.

Claims (8)

1. outside a kind of piling bar, be distributed the net cage anchor foundation of multiple umbrella pallets it is characterised in that include hollow piling bar, one Individual link support and four umbrella pallets, piling bar middle and upper part is provided with bracket, is provided with mooring hole above bracket；Described links support Center is provided with bearing sleeve pipe, links and is additionally provided with centered on bearing sleeve pipe symmetrically arranged four locating dowels two-by-two on support；Umbrella Shape pallet becomes umbrella by circumferential reinforcement with radial direction reinforcing bar uniform welding, and umbrella tray bottom center is provided with sleeve；During work, bearing Sleeve pipe entangles the top of piling bar, and fixation is tied in the mooring hole on piling bar and anchor chain one end, and four umbrella pallets are by sleeve respectively Be enclosed within the locating dowel linking support, piling bar, link support, four umbrella pallets constitute anchor foundations and sink to and sink down into pre- Dinghai Domain, sea bed squeezed into by piling bar, throws in rubble bag towards in umbrella pallet mouth, and rubble bag is pushed down umbrella pallet and constituted net cage anchor foundation.

2. it is distributed the net cage anchor foundation of multiple umbrella pallets outside piling bar according to claim 1 it is characterised in that described Piling bar be hollow piling bar, its bottom is taper pile top, and piling bar outer wall middle and upper part is provided with bracket, and bracket is by six pieces along annular all The triangle supporting plate of even distribution is constituted, and umbrella pallet lower surface is withstood in supporting plate upper end when concordantly working；On piling bar above bracket It is provided with mooring hole.

3. it is distributed the net cage anchor foundation of multiple umbrella pallets outside piling bar according to claim 1 it is characterised in that described Every radial direction reinforcing bar of umbrella pallet constitute from the bottom margin bending that is inclined upwardly, every circumferential reinforcement is circular；Ring To reinforcement welding in the upside of radial direction reinforcing bar；Umbrella tray bottom center is provided with annular slab, and annular slab center is provided with set upwards Cylinder, annular slab inside and outside wall is fixed with sleeve outer wall, radial direction reinforcement welding respectively.

4. it is distributed the net cage anchor foundation of multiple umbrella pallets outside piling bar according to claim 1 it is characterised in that described Link support overall along distribution substantially symmetrical about its central axis, its main body is two orthogonal girder steels, between girder steel adjacent two-by-two It is provided with floor, link carriage center and be provided with bearing sleeve pipe, bearing sleeve pipe and each girder steel upper surface junction are provided with triangle reinforcement Rib；It is provided with wing plate in each girder steel near two ends, wing plate is mutually perpendicular in the horizontal plane with girder steel, set with girder steel point of intersection in wing plate There is longitudinal locating dowel, locating dowel is hollow steel pipe, locating dowel top is provided with construction hole.

5. it is distributed the net cage anchor foundation of multiple umbrella pallets outside piling bar according to claim 1 it is characterised in that described The wing plate length linking on support be not less than umbrella tray bottom diameter.

6. it is distributed the net cage anchor foundation of multiple umbrella pallets outside piling bar according to claim 1 it is characterised in that described Umbrella pallet on sleeve diameter be more than locating dowel external diameter.

7. it is distributed the net cage anchor foundation of multiple umbrella pallets outside piling bar according to claim 1 it is characterised in that described Rubble bag be to fill block stone, the woven bag of rubble or gunny etc., and the minimum grain size size of filled block stone, rubble be more than umbrella Hole between circumferential reinforcement and radial direction reinforcing bar on shape pallet.

8. it is distributed the construction method of the net cage anchor foundation of multiple umbrella pallets outside a kind of piling bar it is characterised in that including as follows Step：

1）, piling bar injection sea bed：The top linking support and entangling based on bearing sleeve pipe piling bar, then one end of anchor chain is tied, It is fixed on the mooring hole of piling bar, then four umbrella pallets are entangled respectively four positioning linking support based on cannulated sleeve Post, and construction auxiliary iron wire is bound on the construction hole of locating dowel, then piling bar is squeezed into sea bed to projected depth；The entering of piling bar Native depth is the distance between taper pile top to triangle supporting plate top；

2）, be thrown into rubble bag and push down umbrella pallet：Construction auxiliary iron wire is stretched and is in vertical line states, along construction auxiliary ferrum The position that silk guides uniformly is thrown into enough rubble bags to construction auxiliary iron wire surrounding, so that rubble bag is equably fallen in four umbrellas In pallet, push down umbrella pallet；

3）, anchor foundation attitude check：Check the sinking attitude of umbrella pallet, if find umbrella pallet run-off the straight, should be past Acclivitous side is thrown into certain rubble bag again, makes umbrella pallet be in horizontality as far as possible；Confirm enough rubbles When bag falls in umbrella pallet and umbrella pallet can undertake set mooring forces, that is, complete the construction operation of net cage anchor foundation.