CN101418553A - Duplex type wave dissipation block - Google Patents

Abstract

The invention provides a kind of duplex type wave dissipation block, this wave breaker block includes three column type bodies of rod that shape is identical, three column type bodies of rod are connected in series so that three-dimensional is orthogonal, in three column type bodies of rod wherein column type body of rod from vertical direction all the other two column type bodies of rod series connection are one.Effect of the present invention is that the block pattern of this structure is simple, void content is big, disappear that wave is effective, the stable height of block, few, the easy construction of consumption, is the more excellent novel armour of a kind of combination property.Through the physical experiments checking, with the outstanding person of current armour---French hook connects block and does contrast test, and the result shows that this novel armour is practical, and the prospect of applying is comparatively wide.This wave breaker block is applicable to various protective engineerings such as harbour mole, sea reclamation embankment, shore protection, is particularly suitable for the relatively poor areas of natural conditions such as the depth of water, wave.

Description

Duplex type wave dissipation block

Technical field

The present invention relates to a kind of duplex type wave dissipation block, be applicable to harbour mole, shore protection, sea reclamation embankment, enclose the various protective building that low bank between fields etc. bears wave action, be more suitable for the relatively poor areas of natural conditions such as the depth of water, wave.

Background technology

The sloping breakwater mask mainly contains the artificial block of piece stone and concrete, and in the area that can exploit boulder, piece stone mask sloping breakwater usually is the less expensive reasonable plan.Because the less stable of jackstone dike armour rock, and the exploitation of boulder and transportation difficulty relatively, so its applicable elements has certain limit.In order to improve the storm resistance of sloping breakwater ground surface protection structure, from the 1950's, external just research used the artificial block of concrete.

After entering the eighties in 20th century, the artificial block of various countries' development has just had kind more than 100.Aspect the research of armour, France develops the earliest, as four pin cones (Tetrapod); The type of Japanology and application is maximum; Also all there is corresponding achievement in countries such as English, U.S., Holland, South Africa, and China starts late in this respect and achievement in research system, perfect is also few.For many years, in relevant technical specification and engineering practice, nearly all quote and recommend the special-shaped wave breaker block several commonly used of external development.

At present the common starting point of artificial block is developed in countries in the world, is to utilize between block to be hooked together mutually or build-in, the group effect of performance mask, rather than the deadweight that depends on single block is kept stable.Therefore, when selecting artificial block mask, should consider following Several principles: the wave that disappears is effective, high, firm durable, the easy construction of stability, economical rationality.According to this principle, selectable block is also just few in number, as: four pin cones, Du Lesi block, three cylinders, four-corner hollow square blocks, the block that is hooked together, barrier board etc.

The classification of artificial block roughly has two kinds: occlusal pattern and colony's build-in type are hooked together.Form of construction work also has two kinds: lay at random with rule and pave.The construction of occlusal pattern block of being hooked together mostly is at random lays, and the construction of colony's build-in type block mostly is paves.

Du Lesi block (being the twist-shaped block body), four pin cones and the block that is hooked together (promptly turning round king's word block) etc. all belong to the occlusal pattern that is hooked together.They are by intersection rod member of self and the interlock that is hooked together mutually to each other, make domatic have certain roughness and higher porosity, do the time spent with it when wave, and energy is absorbed and dissipates.

Block such as four-corner hollow square blocks, barrier board belongs to build-in type block.They are the energy that consume and absorb wave by the support of self and hole and to each other build-in rubbing action.

By contrast, the void content of the occlusal pattern block that is hooked together, domatic roughness are all than build-in type block height, and the unrestrained performance that therefore disappears is quite a lot of, and wave run-up is little, and block stability is also higher.But the occlusal pattern block mostly is and lays two-layer at random and build-in friction-type block mostly is and paves one deck owing to be hooked together, and the block quantity and the engineering quantity of the occlusal pattern block mask that therefore is hooked together generally will be higher than build-in friction-type block.

Summary of the invention

For solving the problem that exists in the above-mentioned technology, the invention provides a kind of duplex type wave dissipation block, the block external form of this structure is good, intensity is high, void content is big, it is little to climb, stability high, lay one deck, easy construction, cheap at random, can connect block with the French hook of generally acknowledging at present both at home and abroad and compare favourably.

For achieving the above object, the technical solution that the present invention adopts provides a kind of duplex type wave dissipation block, wherein: this wave breaker block includes three column type bodies of rod that shape is identical, three column type bodies of rod are connected in series so that three-dimensional is orthogonal, in three column type bodies of rod wherein column type body of rod from vertical direction all the other two column type bodies of rod series connection are one.

The section of the every described column type body of rod is square, rectangle or circle, and the two ends of the every described column type body of rod are terrace with edge or round platform.Every described section is that each face junction of the column type body of rod of square, rectangle is equipped with the chamfering of being convenient to the demoulding.

Described from the length of vertical direction with two column type bodies of rod series connection column type body of rod that is one for the column type body of rod length of one is slightly larger than two series connection.

Effect of the present invention is that the block pattern of this structure is simple, void content is big, disappear that wave is effective, the stable height of block, few, the easy construction of consumption, compares with numerous artificial blocks, and it belongs to the more excellent a kind of novel armour of combination property.Connect block through physical experiments checking and French hook and do contrast test, it can be with the outstanding person of current armour---the hook of France connects block and compares favourably, and has filled up the blank of this technical field of China.This novel armour is practical, and the prospect of applying is comparatively wide.Be used for various protective engineerings such as harbour mole, sea reclamation embankment, shore protection.Be particularly suitable for the relatively poor areas of natural conditions such as the depth of water, wave.

Description of drawings

Fig. 1 is a duplex type wave dissipation block elevational schematic view of the present invention;

Fig. 2 is a duplex type wave dissipation block floor map of the present invention;

Fig. 3 is a duplex type wave dissipation block side schematic view of the present invention;

Fig. 4 is a duplex type wave dissipation block 3 D stereo schematic diagram of the present invention.

Among the figure: 1, the column type body of rod

The specific embodiment

In conjunction with the accompanying drawings duplex type wave dissipation block structure of the present invention is illustrated.

Shown in Fig. 1-4, duplex type wave dissipation block of the present invention, this wave breaker block includes three column type bodies of rod 1 that shape is identical, three column type bodies of rod are connected in series so that three-dimensional is orthogonal, in three column type bodies of rod wherein column type body of rod from vertical direction all the other two column type bodies of rod series connection are one.

The section of the every described column type body of rod is square, rectangle or circle, and the two ends of the every described column type body of rod are terrace with edge or round platform.Every described section is that each face junction of the column type body of rod of square, rectangle is equipped with the chamfering of being convenient to the demoulding.Described from the length of vertical direction with two column type bodies of rod series connection column type body of rod that is one for the column type body of rod length of one is slightly larger than two series connection.

Duplex type wave dissipation block structure of the present invention is achieved in that

1. the main working procedure when being used for the sloping breakwater ground surface protection structure is:

Based process---is thrown and is filled out the dike cardiolith---throw and bury bed course piece stone, rib body---and lay artificial piece

Body---river bottom protection piece stone.

2. the design of amphistyly block and enforcement

(1) determines the stable weight of this block

Adopt U.S. HUDSON formula commonly used both at home and abroad:

$W=0.1\frac{{\mathrm{\γ}}_b{H}^3}{K_D{(\frac{{\mathrm{\γ}}_b}{\mathrm{\γ}}-1)}^3\mathrm{ctg\α}}$

In the formula: W---the stable weight (t) of single block;

γ _b---the severe (kN/m of block materials ³);

H---design wave height (m);

K _D---the coefficient of stability (do not get 18 when wave is broken before the dike, get 15 when broken);

Severe (the kN/m of γ---water ³);

The angle of α---slope and horizontal plane.

Usually to being used for the stable weight of sloping breakwater armour, only consider the difference of unstability rate n (%), promptly in the scope of calculating the upper and lower one times of wave height of water level, hit the shared percentage of block number that moves or roll, generally get n=0%～1% by wave.Belong to not have substantially and damage so the KD value gets 15～18.

(2) number of armour and concrete amount

1) block number:

$N=\mathrm{Anc}(1-P)\left(\frac{{\mathrm{\γ}}_b}{W}\right)$

In the formula: N---the number of block;

A---perpendicular to the average area (m of armour layer ²);

N---the armour number of plies;

C---form coefficient, " duplex " type block desirable 1.30;

P---void content, " duplex " type desirable 60%.

2) concrete amount:

$Q=N\left(\frac{W}{{\text{\γ}}_b}\right)$

In the formula: Q---concrete amount (m ³);

The number of N---armour;

The stable weight of W---armour (t);

γ _b---the severe (kN/m of block materials ³).

3) thickness of block:

t＝0.9h

In the formula: t---lay the thickness (m) of one deck armour;

H---block rod member length (m).

3. the prefabricated and installation of block

(1) template of prefabricated block should adopt steel form or pin-connected panel hybrid template.

What (2) this block should adopt fixed point location lays technology at random; Should lay from bottom to top when laying, this block of bottom should contact closely with rib body under water.This block can obliquely be placed on domatic, and half rod member of this block is contacted with bed course piece stone, but being flapped toward of adjacent block is unsuitable identical.

(3) the basic demand that this block is installed is the quantity of laying on guarantor unit's area, and anti-leak-stopping is thrown or the block excesssive gap; The packing density of this block should not be lower than 95% of theoretical bulk density.

(4) artificial block can be laid with grab bucket or hoist cable, need not bury suspension ring underground in this block.

4. breakwater structure generally needs by physical experiments the principal dimensions of its section and the stability at each position to be verified.

Claims (4)

1. duplex type wave dissipation block, it is characterized in that: this wave breaker block includes three column type bodies of rod that shape is identical, three column type bodies of rod are connected in series so that three-dimensional is orthogonal, in three column type bodies of rod wherein column type body of rod from vertical direction all the other two column type bodies of rod series connection are one.

2. duplex type wave dissipation block according to claim 1 is characterized in that: the section of the every described column type body of rod is square, rectangle or circle, and the two ends of the every described column type body of rod are terrace with edge or round platform.

3. duplex type wave dissipation block according to claim 2 is characterized in that: every described section is that each face junction of the column type body of rod of square, rectangle is equipped with the chamfering of being convenient to the demoulding.

4. duplex type wave dissipation block according to claim 1 is characterized in that: described from the length of vertical direction with two column type bodies of rod series connection column type body of rod that is one for the column type body of rod length of one is slightly larger than two series connection.

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