CN104652366B - A kind of construction method of utilizing transmission piece to enclose the short silt dike in sea - Google Patents
A kind of construction method of utilizing transmission piece to enclose the short silt dike in sea Download PDFInfo
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- CN104652366B CN104652366B CN201510020459.2A CN201510020459A CN104652366B CN 104652366 B CN104652366 B CN 104652366B CN 201510020459 A CN201510020459 A CN 201510020459A CN 104652366 B CN104652366 B CN 104652366B
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- 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
- E02B3/18—Reclamation of land from water or marshes
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- 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
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
Abstract
The invention belongs to and enclose short deposit technique field, sea, relate in particular to a kind of construction method of utilizing transmission piece to enclose the short silt dike in sea. Comprise that (1) interlocking segment is prefabricated, preparation forms the interlocking segment of soft raft; (2) isostere is made, and interlocking segment is sewn into soft raft; (3) interlocking segment soft raft is laid, and the soft raft that adopts Working Ships that step (2) is obtained is laid on levee foundation; (4) lift-on and lift-off ship location spread, stays position by the lift-on and lift-off ship that gps system is installed along the dike axle of short silt dike; (5) bottom transmission block is installed, and adopts vertical suspender to carry out barycenter fixed point to the transmission piece of bottom and lays; (6) spats rock mound throwing, at the both sides of bottom transmission block throwing spats rock mound, carries out lateral support to bottom transmission piece; More than (7) two layers transmission block throwing is carried out the random attitude of transmission piece and is stacked above bottom transmission piece, and adjacent two layers transmission piece is blossom type in the projection of horizontal plane, and upper strata transmission block is tiltedly embedded in lower floor's transmission block gap.
Description
Technical field
The invention belongs to and enclose short deposit technique field, sea, relate in particular to a kind of construction method of utilizing transmission piece to enclose the short silt dike in sea.
Background technology
Reclaiming fields from the sea is the effective way that solves coastal area land resource shortage contradiction, along with the minimizing day by day of high beach resource andBecoming increasingly abundant of engineering experience, the engineering of reclaiming fields from the sea is developed to neritic province domain by shoal area gradually. Make ground at neritic province domainConstruct as last and first urge silt engineering, can accelerate the alluvial effect of silt by short silt engineering, short silt dike engineering can be fallenLow construction investment and reduction engineering risk, therefore short silt dike engineering has become one of the key of engineering of reclaiming fields from the sea.
Existing short silt engineering in general is to form short silt dike along the short silt construction line piece stone of jettisoninging, and short silt dike reduces the merit of washing away of waveCan, make the silt of carrying secretly accelerate sedimentation. There is comparatively significantly defect in above-mentioned short silt engineering: in engineering construction, needs a large amount ofPiece stone, the amount of jettisoninging is huge, just there will be in piece stone area in short supply like this because of construction material be difficult to obtain bring executeWork cost rising problem; After piece stone is jettisoninged, short silt dike self porosity of its formation is lower, deadweight is larger, like this at weak soilGround is short to become silted up in construction, because the short silt dike of piece stone exists potential compressing destruction to ground, therefore need weak soil before constructionGround carries out the pretreatment of high requirement, causes construction investment to increase; The monomer volume and weight of piece stone is all less, shape notRule, jettisoning form short silt dike after less stable, its face that bears alluvion of levee body that mask stormy waves need to be set is anti-Protection structure, the levee body of avoiding long-term stormy waves to wash away bringing destroys, and this has increased complexity and the engineering cost of construction undoubtedly.Therefore, a kind of new construction of research and development designs, seem particularly crucial in order to substitute the monomer of jettisoninging of conventional block stone.
By summing up practical construction experience, my company has researched and developed transmission piece for substituting the existing piece stone of jettisoninging. In structure, wrapDraw together the block moulding of concrete formed by integrally casting, cuboid shape and be opened in the each end face of block center, to inner central foveaFall into the hole of engraving of extending, the inner of respectively engraving hole connects and connects in center. Above-mentioned transmission piece can solve well piece stone shortage and askTopic, soft soil foundation is produced to the problem, the soft soil foundation that destroy carry out the loaded down with trivial details and cost of technique that complicated pretreatment brings and rise and askTopic and the low mask stormy waves safeguard structure problem that installs additional of bringing of short silt embankment structure intensity forming, can represent short silt dike constructionDeveloping direction.
Summary of the invention
The present invention provides a kind of enclosing based on this monomer of jettisoninging of transmission piece for solving the technical problem existing in known technologyThe construction method of the short silt dike in sea.
The technical scheme that the present invention takes for the technical problem existing in solution known technology is: one utilizes transmission piece to enclose seaIt is prefabricated that the construction method of short silt dike comprises the following steps (1) interlocking segment, and preparation forms the interlocking segment of soft raft; (2) isostereMake, interlocking segment is sewn into soft raft; (3) interlocking segment soft raft is laid, and adopts Working Ships that step (2) is obtainedSoft raft is laid on levee foundation; (4) lift-on and lift-off ship location spread, will be provided with the lift-on and lift-off ship of gps system along the dike of short silt dikeAxle is stayed position; (5) bottom transmission block is installed, and adopts vertical suspender to carry out barycenter fixed point to the transmission piece of bottom and lays; (6)Spats rock mound throwing, at the both sides of bottom transmission block throwing spats rock mound, carries out side direction to bottom transmission piece and props upSupport; More than (7) two layers transmission block throwing is carried out the random attitude of transmission piece and is stacked, phase above bottom transmission pieceAdjacent two-layer transmission piece is blossom type in the projection of horizontal plane, and upper strata transmission block is tiltedly embedded in lower floor's transmission block gap.
Advantage of the present invention and good effect are: the invention provides and a kind ofly enclose sea short silt dike taking novel transmission piece as basisConstruction method, compared with the construction method of jettisoninging into dike with existing block of stone, the technical program tool has the following advantages,
(1) transmission piece is made by concreting, therefore tradition jettisoning piece stone material lack area also can ensure holdChange places and obtain the material of jettisoninging, avoid because the engineering cost that the transport of piece stone etc. brings rises;
(2), compared with erose block of stone, transmission piece, by the hole of engraving of internal run-through is set, is jettisoninged and is provided for liftingThe structure of lifting, be convenient to transmission piece and adopt hoist cable, suspender etc. fix a points to jettisoning, be easy to the index that Control Engineering is constructed;
(3) hole of engraving of transmission piece inside makes transmission piece self possess certain porosity, and the short silt dike deadweight of formation is less,Effectively avoid the compressing of soft soil foundation to destroy, alleviated soft soil foundation and carried out complicated pretreated burden in earlier stage;
(4) volume of transmission piece can do greatlyr, is obviously greater than the jettisoning weight of piece stone of tradition on monomer weight; RuleThe level that shape and structure is convenient to transmission piece is put and vertical stacking; The angle of transmission piece embeds the hole of engraving of adjacent transmission pieceIn; Above-mentioned factor makes to form each transmission piece monomer closely interlock mutually of short silt dike, and the short silt embankment structure intensity of formation is large and tenPoint stable, be difficult for collapsing under the souring of wave, therefore jettisoning and saved short and become silted up compared with construction technology with conventional block stoneDike mask arranges the step of stormy waves safeguard structure, has simplified construction technology, has reduced engineering cost;
(5) levee body forming has 56% porosity, the load of soft soil foundation is only had to 69% left and right of jackstone dike, makesOnly there is 46.9% of jackstone dike by piece stone total amount (only levee toe use piece stone), realized the function of short silt naturally, greatly reduceThe amount of jettisoninging of piece stone;
(6) bottom transmission piece is realized and accurately put location under gps system is instructed, and construction precision is high.
Preferably: also comprise the dike foundation clearance step of simultaneously carrying out with step (2), in this step, complete levee foundation foreign materialProcessing with hole, hole.
Preferably: the lap width that in step (3), adjacent two soft rafts are laid is more than or equal to 5m.
Preferably: between step (5) and step (6), also comprise the step that bottom block detects, detect index and comprise the endLayer transmission piece is laterally laid quantity, bottom transmission piece barycenter horizontal spacing, bottom transmission piece barycenter longitudinal pitch and bottom transmissionPosition, piece sideline.
Preferably: spats rock mound adopts fresh magmatic rock, stone substance design load is 200kg to 400kg, monolithicAverage weight is not less than 90% of substance design load, and minimum monolithic weight is not less than 50% of substance design load.
Preferably: between step (6) and step (7), also comprise the step of spats jackstone throwing elevation, position probing,Detect index and comprise width difference and absolute altitude deviation.
Preferably: between spats jackstone throwing elevation, position probing step and step (7), also comprise levee body measure axisStep, places axial line control mark along short silt dike levee body axis.
Preferably: also comprise afterwards crest elevation of levee, width detection step in step (7), detect index and comprise crest elevation of leveeWith levee crown width.
Preferably: after crest elevation of levee, width detection step, also comprise levee body section completion acceptance step, acceptance index bagDraw together levee body transmission block and lay quantity transmission block adjacent with the top layer discrepancy in elevation.
Preferably: transmission piece be shaped as square, rib is long is 1.5m, the cross section of engraving hole is square, the length of side is 0.5m;Setting bottom transmission block spacing is axial 2.2m, vertical axial 2.4m.
Brief description of the drawings
Fig. 1 is method flow block diagram of the present invention;
Fig. 2 is the section structure schematic diagram of short silt dike in work progress of the present invention;
Fig. 3 is the design sketch of the short silt dike that obtains of the present invention.
Detailed description of the invention
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples and be described in detail as follows:
Refer to Fig. 1, construction method of the present invention comprises the following steps:
(1) interlocking segment is prefabricated, and preparation forms the interlocking segment of soft raft;
(2) isostere is made, and interlocking segment is sewn into soft raft;
(3) interlocking segment soft raft is laid, and the soft raft that adopts Working Ships that step (2) is obtained is laid on levee foundation; This stepThe lap width that in rapid, adjacent two soft rafts are laid is more than or equal to 5m.
(4) lift-on and lift-off ship location spread, stays position by the lift-on and lift-off ship that gps system is installed along the dike axle of short silt dike; HereinGps system can be chosen for the GPS-RTK system with centimetre positioning precision, ensures to stay the precision of position.
(5) bottom transmission block is installed, and adopts vertical suspender to carry out barycenter fixed point to the transmission piece of bottom and lays;
Before laying, first calculate the center-of-mass coordinate of each transmission block according to engineering information.
The concrete steps that bottom transmission block is installed are: on the Working Ships with two groups of loop wheel machines, adopt 4 groups of GPS location constructions,Position and the direction of the two GPS navigation systems of boat-carrying to boats and ships accurately located, adopts the fixing vessel position of four anchor lines withDirection, gibbet pushes up 1 group of GPS receiver of each installation, uses wireless transmission method to be connected with the computer of loop wheel machine driver's cabin, logicalCross computer display screen and determine lift hook position, accurately lay. By bottom block supplemental characteristic input computer, the program of completing is establishedPut, mounting shipping is stayed position along dike axis. Show that according to Ship GPS moving ship puts in place, block is the level of state after slinging, rootArm is moved in the position showing according to loop wheel machine driver's cabin computer screen, lays block after position alignment, guarantees that block is steady while layingLand, and recorded particle coordinate. Repeat according to next piece center-of-mass coordinate position, until horizontal one row all complete,Next row installation is carried out in mobile installation ship position.
After this also should comprise the step that bottom block detects, detect the situation that bottom transmission block is installed of evaluating. Detect index bagDraw together bottom transmission piece and laterally lay quantity, bottom transmission piece barycenter horizontal spacing, bottom transmission piece barycenter longitudinal pitch and bottomPosition, transmission piece sideline.
(6) spats rock mound throwing, at the both sides of bottom transmission block throwing spats rock mound, to bottom transmission pieceCarry out lateral support;
The concrete steps of throwing are: adopt the string bag ship throwing of fixing a point, be divided into grid to casting scope, calculate and jettisoningControl the size, after every row's grid has been jettisoninged, water stone roller is detected, the quantity and even of guaranteeing to jettisoning.
Spats rock mound should adopt fresh magmatic rock, and stone substance design load is 200kg to 400kg, and monolithic is on average heavyAmount is not less than 90% of substance design load, and minimum monolithic weight is not less than 50% of substance design load.
After this step of spats jackstone throwing elevation, position probing can also be set, detect index and comprise width difference and absolute altitudeDeviation.
After this levee body measure axis step can also be set, place axial line control mark along short silt dike levee body axis.
More than (7) two layers transmission block throwing is carried out the random attitude of transmission piece and is stacked, phase above bottom transmission pieceAdjacent two-layer transmission piece is blossom type in the projection of horizontal plane, and upper strata transmission block is tiltedly embedded in lower floor's transmission block gap. AdoptRealize the short function of becoming silted up of nature with gravity-type structure blocking-up current, keep the good wave that disappears of transmission block with high voidage and deadweightFunction also ensures that levee body is stable, and porosity reaches 56%, effectively reduces deadweight, has met bearing capacity and the entirety of soft soil foundationStability, greatly reduces the piece stone amount of jettisoninging.
Bottom transmission block is installed, the dynamic process of spats rock mound and more than two layers transmission block throwing is referring to accompanying drawing 2,Can find out spats rock mound and the more than two layers position between transmission piece of interlocking segment soft raft, bottom transmission piece, both sidesRelation.
After this crest elevation of levee, width detection step can also be set, detect index and comprise crest elevation of levee and levee crown width.
After this levee body section completion acceptance step can also be set, and acceptance index comprises that levee body transmission block lays quantity and top layerThe adjacent transmission block discrepancy in elevation.
Because soft soil along the coast situation is comparatively complicated, thus before laying, preferably levee foundation is cleared up interlocking segment soft raft,In this step, complete the processing to levee foundation foreign material and hole, hole. In the present embodiment, with reference to the FB(flow block) in accompanying drawing 1, levee foundationThe step that the step of cleaning can be made with isostere is carried out simultaneously. In practice of construction, the step that isostere is made is on Working ShipsContinue to carry out, arrange on side seam limit processed, can arrange herein cleaning boats and ships at front, Working Ships rear, clear up, make andArrange and linked up.
Through practical construction experience, the shape of transmission piece adopts following design to have better construction property. The shape of transmission pieceFor square, rib is long is 1.5m, and the cross section of engraving hole is square, and the length of side is 0.5m, self porosity 26%, and deadweight is approximatelyIt is 6 tons. Certainly can expect, also can adopt the transmission block of similar said structure as the monomer of jettisoninging, concreteShape and size can be set according to concrete execution conditions.
While adopting the transmission piece of above-mentioned shape and size design, in bottom transmission block installation shaft, set between bottom transmission blockDistance is axial 2.2m, vertical axial 2.4m.
Fig. 3 is the construction effect figure of short silt dike, can find out: bottom transmission block regularly placing, and barycenter fixed point is put,More than two layers transmission block attitude is stacked at random, and the horizontal installation number of second layer transmission piece is that (bottom piece number is N to N-1 piecePiece). More than the 3rd layer the rest may be inferred, and the projection of adjacent two layers transmission block horizontal plane is blossom type and distributes, and guarantees upper strata pieceBody is tiltedly embedded in lower floor's block gap. Transmission piece is laid should be steady, avoids block to cause unnecessary damage. Installation processIn, arrange GPS-RTK group with boat measurement amount, by adjusting two layers of row, column pitch above, make the embedding between adjacent block darkDegree changes to some extent, to guarantee crest elevation of levee.
Claims (10)
1. utilize transmission piece to enclose a construction method for the short silt dike in sea, it is characterized in that: comprise the following steps,
(1) interlocking segment is prefabricated, and preparation forms the interlocking segment of soft raft;
(2) isostere is made, and interlocking segment is sewn into soft raft;
(3) interlocking segment soft raft is laid, and the soft raft that adopts Working Ships that step (2) is obtained is laid on levee foundation;
(4) lift-on and lift-off ship location spread, stays position by the lift-on and lift-off ship that gps system is installed along the dike axle of short silt dike;
(5) bottom transmission block is installed, and adopts vertical suspender to carry out barycenter fixed point to the transmission piece of bottom and lays;
(6) spats rock mound throwing, at the both sides of bottom transmission block throwing spats rock mound, to bottom transmission pieceCarry out lateral support;
More than (7) two layers transmission block throwing is carried out the random attitude of transmission piece and is stacked, phase above bottom transmission pieceAdjacent two-layer transmission piece is blossom type in the projection of horizontal plane, and upper strata transmission block is tiltedly embedded in lower floor's transmission block gap.
2. the construction method of utilizing transmission piece to enclose the short silt dike in sea as claimed in claim 1, is characterized in that: also comprise withThe dike foundation clearance step that step (2) is carried out simultaneously completes the processing to levee foundation foreign material and hole, hole in this step.
3. the construction method of utilizing transmission piece to enclose the short silt dike in sea as claimed in claim 1, is characterized in that: step (3)In adjacent two soft rafts lap width of laying be more than or equal to 5m.
4. the construction method of utilizing transmission piece to enclose the short silt dike in sea as claimed in claim 1, is characterized in that: in step (5)And between step (6), also comprise bottom block detect step, detect index comprise bottom transmission piece laterally lay quantity,Bottom transmission piece barycenter horizontal spacing, bottom transmission piece barycenter longitudinal pitch and position, bottom transmission piece sideline.
5. the construction method of utilizing transmission piece to enclose the short silt dike in sea as claimed in claim 1, is characterized in that: spats jackstoneRib body adopts fresh magmatic rock, and stone substance design load is 200kg to 400kg, and monolithic average weight is not less than substance and establishes90% of evaluation, minimum monolithic weight is not less than 50% of substance design load.
6. the construction method of utilizing transmission piece to enclose the short silt dike in sea as claimed in claim 1, is characterized in that: in step (6)And between step (7), also comprise the step of spats jackstone throwing elevation, position probing, detect index comprise width difference andAbsolute altitude deviation.
7. the construction method of utilizing transmission piece to enclose the short silt dike in sea as claimed in claim 6, is characterized in that: throw at spatsBetween stone throwing elevation, position probing step and step (7), also comprise levee body measure axis step, along short silt dike levee body axleLine is placed axial line control mark.
8. the construction method of utilizing transmission piece to enclose the short silt dike in sea as claimed in claim 1, is characterized in that: in step (7)Also comprise afterwards crest elevation of levee, width detection step, detect index and comprise crest elevation of levee and levee crown width.
9. the construction method of utilizing transmission piece to enclose the short silt dike in sea as claimed in claim 8, is characterized in that: high at levee crownAfter journey, width detection step, also comprise that levee body section completion acceptance step, acceptance index comprise that levee body transmission block laysThe adjacent transmission block of quantity and the top layer discrepancy in elevation.
10. the transmission piece that utilizes as described in claim 1 to 9 any one encloses the construction method of the short silt dike in sea, it is characterized in that:Transmission piece be shaped as square, rib is long is 1.5m, the cross section of engraving hole is square, the length of side is 0.5m; Setting bottom is saturatingEmpty block spacing is axial 2.2m, vertical axial 2.4m.
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| CN201510020459.2A CN104652366B (en) | 2015-01-15 | 2015-01-15 | A kind of construction method of utilizing transmission piece to enclose the short silt dike in sea |
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| CN201510020459.2A CN104652366B (en) | 2015-01-15 | 2015-01-15 | A kind of construction method of utilizing transmission piece to enclose the short silt dike in sea |
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| CN107215778A (en) * | 2017-06-28 | 2017-09-29 | 中交上海航道局有限公司 | A kind of construction method for lifting the face block of exposed throughout type six |
| CN109457666B (en) * | 2018-12-10 | 2023-09-15 | 自然资源部第二海洋研究所 | Silt-promoting device and natural coastline generation method |
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| GB683360A (en) * | 1950-03-10 | 1952-11-26 | Neyrpic Ets | Improvements in or relating to artificial blocks for the protection of structures exposed to the action of moving water |
| JPS6239125Y2 (en) * | 1980-05-09 | 1987-10-06 | ||
| JPH03237047A (en) * | 1990-02-14 | 1991-10-22 | Ryoko Sangyo Kk | Precast concrete armour unit and its production |
| JPH11148125A (en) * | 1997-11-18 | 1999-06-02 | Giken Kogyo Kk | Environmental protection block |
| CN100410450C (en) * | 2005-10-31 | 2008-08-13 | 程卫国 | Scour prevention surface protecting system, building block therefor and construction method therefor |
| KR101144639B1 (en) * | 2008-12-09 | 2012-05-08 | 주식회사 다우해양 | Facilities for The Exchange of seawater Using an Precast Concrete Block |
| CN102619194A (en) * | 2012-04-17 | 2012-08-01 | 上海市水利工程设计研究院 | Method for closure of high-flow-rate closure gap by riprapping and frames used in method |
| CN102758420B (en) * | 2012-07-31 | 2014-07-16 | 长江南京航道工程局 | Underwater movable reinforcing rib arrangement system |
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Address after: Room 346, Chentang technology incubator, 17 Yujiang Road, Hexi District, Tianjin, 300221 Patentee after: CCCC (Tianjin) Dredging Engineering Co.,Ltd. Address before: Tianhang building, No.1, Zhongxin Road, Tanggu District, Binhai New Area, Tianjin 300450 Patentee before: CCCC-TDC BINHAI ENVIRONMENTAL CHANNEL DREDGING Co.,Ltd. |