The steel pipe sheet pile combining structure
Technical field
The utility model relates to the sheet pile structure of building port and pier, refers in particular to the steel pipe sheet pile combining structure.
Background technology
Traditionally, the form of dock structure roughly can reduce three major types: gravity type quay, long piled wharf and sheet-pile wharf.The construction technical requirement of gravity type quay own is lower, but allows requirement for bearing capacity high to ground, should build in preferably on the ground.Harbour is when maximization, deep water development, and the high increasing of wall need be through increasing baseplate width, the increase excavating foundation trench degree of depth and structurally taking appropriate measures.
The long piled wharf work characteristics is to pass to ground through the load that the stake platform will act on the harbour through pile foundation, and long piled wharf mainly is applicable to soft foundation, and structural-load-carrying capacity is limited; To ground overload bad adaptability; As running into hard soil layer, will cause slowing down and the increase of construction cost of construction speed during pile sinking, and; Require dredging earlier before the piling, the big gauge block stone of the backfill of bank slope structure rib body construction, rear connect the bank structure construction and disturb big to superstructure and rear land-based area strengthening construction.
Sheet-pile wharf is made up of sheet pile, pull bar, anchorage structure, nose girder, cap etc.The sheet-pile wharf building mainly is to constitute upright body of wall, body of wall top by anchorage structure anchorage in addition by the continuous plate shape stake of squeezing into the ground certain depth.The sheet-pile wharf building can dig the wall vestibule dock after the first sheet piling, can reduce the excavation and filling earth volume in a large number, and sheet pile structure is strong to complex geological conditions compliance, but because present sheet pile is a thin wall construction, bending resistance is limited, so many are used for middle-size and small-size harbour.
Along with the boats and ships of delivery container towards large scale development, the bulkhead wall of harbour is increasingly high, and service load also constantly increases.When long piled wharf and gravity type quay have been applied to 10 tons, deep water large-scale berth more than 20 tons; Sheet-pile wharf but is not able to significantly make progress all the time; Tracing it to its cause mainly is when sheet pile structure is used to maximize the deep water berth, and the sheet pile wall forward position depth of water will strengthen, the lateral earth pressure that harbour upper load and soil body deadweight produce; Make moment of flexure and the displacement of sheet pile wall be the growth of how much numbers along with the increase of height; Need this moment to adopt heavy in section sheet pile structure or many pull bars are set, just can bear huge lateral earth pressure effect, to satisfy the requirement of whole stability, distortion and component strength of dock structure.This has not only increased difficulty of construction, also reduces the applicability and the economy of sheet pile structure greatly.
The utility model content
In view of this, be necessary to problem, a kind of complicated geological, new-type sheet pile structure that is suitable for deepwater wharf that bearing capacity is high of adapting to is provided.
For this purpose; The utility model provides a kind of steel pipe sheet pile combining structure; Comprise a plurality of steel pipes and a plurality of steel plate, steel pipe comprise body and with the integrated fixedly snap close of body, each steel plate two ends has the pivot joint snap close respectively; The fixedly snap close of steel pipe is connected with chimeric mode with the pivot joint snap close of steel plate, and steel pipe and steel plate are spaced in regular turn.
As preferential, per two steel plates partner, and every pair of steel plate is between per two steel pipes.
Preferred as further, the pivot joint snap close at each steel plate two ends is respectively first and articulates the snap close and the second pivot joint snap close, and the first pivot joint snap close and second articulates snap close and has difference.
Preferred as further, steel plate is connected to form by first flat board, second flat board and the 3rd flat board, and wherein, first flat board is parallel to each other with the 3rd flat board.
Preferred as further; First snap close is first crotch that the first dull and stereotyped end forms; Second snap close is that second crotch and the 3rd dull and stereotyped the going up that the 3rd dull and stereotyped end forms given prominence to a block piece that forms; First crotch and second crotch collude each other to be held, and first crotch has one position-arresting part to limit the translation of second crotch, and block piece is to stop the translation of first crotch.
As preferential, the distance between the center of circle of adjacent two steel pipes is less than the twice of diameter of steel tube.
As preferential, the cross section of steel plate is a circular arc.
As preferential, fixedly snap close is hook-shaped.
As preferential, the thickness of steel pipe is greater than the thickness of steel plate.
As preferential, each said steel plate is formed in one.
Compared with prior art; Ingenious steel pipe pile that bending resistance is strong, rigidity is big and the steel sheet pile that bending resistance is lower, rigidity is little of having combined of the steel pipe sheet pile combining structure of the utility model; Steel pipe has and the integrated fixedly snap close of its body, and steel pipe and steel plate link together through snap close and be beneficial to compatible deformation, makes the steel pipe sheet pile combining structure meet under the high performance prerequisite; The economy and the applicability of this type of sheet pile structure harbour have been improved; And ripe construction technology is arranged, can accomplish construction within a short period of time, guaranteed the duration.
Description of drawings
Fig. 1 is the steel pipe sheet pile combining structure sketch map of first embodiment of the utility model;
Fig. 2 is the sketch map of cooperation of first snap close and second snap close of steel plate shown in Figure 1;
Fig. 3 is the sketch map that steel plate shown in Figure 1 squints;
Fig. 4 is the steel pipe sheet pile combining structure sketch map of second embodiment of the utility model.
Drawing reference
numeral
10 | Body 11 | Fixedly snap close 12 |
Steel plate 20 | First dull and stereotyped 21 | Second dull and stereotyped 22 |
The the 3rd dull and stereotyped 23 | First crotch 24 | Position-arresting part 241 |
Second crotch 25 | Block piece 26 | |
The specific embodiment
Fig. 1 to Fig. 3 is the steel pipe sheet pile combining structure of first embodiment of the utility model, is used for the sheet pile design of port and pier, is connected to form with a plurality of steel plates 20 by a plurality of steel pipes 10.
As shown in Figure 1, steel pipe 10 comprise body 11 and with body 11 integrated fixedly snap closes 12, fixedly snap close 12 is arranged on the body 11 symmetrically, and sees from cross section, fixedly snap close 12 is hook-shaped.
As shown in Figures 2 and 3, steel plate 20 is connected to form by first dull and stereotyped 21, second the dull and stereotyped the 22 and the 3rd dull and stereotyped 23, first dull and stereotyped the 21 and the 3rd dull and stereotyped 23 almost parallels.First dull and stereotyped 21 end is bent to form one first crotch 24; And first crotch 24 has one position-arresting part 241 and vertically is bent to form by first dull and stereotyped 21; The the 3rd dull and stereotyped 23 end is bent to form second crotch 25, and the outstanding block piece 26 that forms on the 3rd dull and stereotyped 23, and block piece 26 is a tip-angled shape; Be approximately perpendicular to the 3rd dull and stereotyped 23 in the side that faces second crotch 25; First crotch 24 and second crotch 25 collude each other to be held, and position-arresting part 241 is used to stop the translation of second crotch 25, and block piece 26 is used to limit the translation of first crotch 24.First crotch 24 articulates snap close as first, and second crotch 25 is combined as second with block piece 26 and articulates snap close.First articulates snap close and second articulates snap close all as the pivot joint snap close of steel plate 20.Each said steel plate 20 is formed in one, and it is integrally formed in casting process that promptly first dull and stereotyped 21, second the dull and stereotyped the 22, the 3rd dull and stereotyped 23, the first pivot joint snap close and second articulates snap close.
As shown in Figure 1, two steel plates 20 partner, and the every pair of steel plate 20 connects two steel pipes 10, and the fixedly snap close 12 of steel pipe 10 is connected with chimeric mode with the pivot joint snap close of steel plate 20, and like this, steel pipe 10 and steel plate 20 are spaced according to certain rules.Distance between the center of circle of adjacent two steel pipes 10 is less than the twice of the diameter of steel pipe 10.
As shown in Figure 4, be second embodiment of the utility model, with the main distinction of first embodiment be: the cross section of steel plate 20 ' is a circular arc, and two steel plates 20 ' partner, and every pair of steel plate 20 ' connects two steel pipes 10, and every pair of steel plate 20 constitutes corrugated.
The steel pipe sheet pile combining structure of present embodiment, steel pipe pile (being that steel pipe 10 is stake) has the strong characteristics of bending resistance, as the main bearing member in the combined system, soil pressure, water pressure that steel pipe pile sufferance wharf rear is whole; As the foundation structure of lifting door machine, steel pipe pile can also bear bigger vertical load in addition.
The rigidity of steel sheet pile (being that steel plate 20,20 ' is stake) is less with respect to steel pipe pile; Through first, second articulate snap close and fixedly colluding of snap close 12 hold; Steel sheet pile tightly links to each other with steel pipe pile, and steel sheet pile bears the soil pressure in the soil arch scope between the pile tube, and through articulating snap close soil pressure is delivered to steel pipe pile; So very little about the load that bears of steel sheet pile, a stake end, only need get into to wash away under the scope soil layer before the wall and get final product.And, for guarantee to articulate snap close and fixedly snap close 12 soil pressure is effectively transmitted, as preferred embodiment, the distance between the center of circle of adjacent two steel pipes 10 is less than the twice of the diameter of steel pipe 10.
Because the fixedly snap close of steel pipe 10 12 is one-body molded with body 11, each said steel plate 20 is formed in one again, and the snap close of steel pipe 10 and steel plate 20 is connected has very high intensity, and steel sheet pile and steel pipe pile are connected under the high load through snap close can keep compatible deformation.Because horizontal distortion is consistent, the steel sheet pile bending rigidity has order of magnitude difference with respect to steel pipe pile.The moment of flexure that steel sheet pile is shared is very limited, and steel sheet pile has lower anti-bending strength and can meet the demands.So this combining structure can be simplified to all horizontal force loads and all born by steel pipe pile; Steel sheet pile and fixedly snap close, articulate snap close and play level to transmitting the soil pressure effect; The steel pipe pile agent structure satisfies the requirement of embedded depth under the different geological conditionss easily, and the steel sheet pile syndeton is more intense to the compliance of multiple geological conditions.
On the one hand, when having deviation if run into unusual pile sinking, can be according to actual deviation through mechanical adjustment sheet pile shape; Realize smooth pile sinking; As shown in Figure 3, can carry out the skew of minute angle between the steel sheet pile, make for making steel sheet pile suitably squint and being convenient to; Per two steel plates 20,20 ' partner, and the every pair of steel plate 20,20 ' is between per two steel pipes 10; On the other hand, from cost-effective angle, and the proof of practice, the thickness of steel plate can be less than the thickness of steel pipe, and being beneficial to through strengthening the steel pipe pile diameter, making increases steel using amount very under the condition of limited, obtains bigger forward position, the berth depth of water; Again on the one hand, the sheet pile structure of this steel pipe sheet pile combination, the piling technical maturity, water, land construction all can, receive the factor of weather effect smaller, can effectively control and the reduction of erection time.
Above embodiment has only expressed several kinds of embodiments of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.Therefore, the protection domain of the utility model patent should be as the criterion with accompanying claims.