CN105804053A - Performance-improved sheet pile shaped like Chinese character 'ji' - Google Patents
Performance-improved sheet pile shaped like Chinese character 'ji' Download PDFInfo
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- CN105804053A CN105804053A CN201610293588.3A CN201610293588A CN105804053A CN 105804053 A CN105804053 A CN 105804053A CN 201610293588 A CN201610293588 A CN 201610293588A CN 105804053 A CN105804053 A CN 105804053A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
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Abstract
The invention relates to a performance-improved sheet pile shaped like a Chinese character 'ji'. The performance-improved sheet pile comprises a pile body, wherein a plurality of main reinforcing bars and hoopings are arranged in the pile body. The cross section of the pile body is shaped like the Chinese character 'ji' formed by a top, two waist parts and two lower flanges. The hoopings are shaped like the Chinese character 'ji' and are placed on the main reinforcing bar at intervals in the length direction. The performance-improved sheet pile is characterized in that the main reinforcing bars are divided into two parts, wherein one parts of the main reinforcing bars are the top main reinforcing bars located at the position of the top, and the other parts of the main reinforcing bars are the bottom main reinforcing bars located at the positions of the two lower flanges; the total number of the top main reinforcing bars is an even number and is equal to the total number of the bottom main reinforcing bars at the positions of the two lower flanges; and meanwhile, the numbers of the bottom main reinforcing bars at the positions of the two lower flanges are the same. The main reinforcing bars are arranged at the positions, bearing the largest force, of the pile body, and therefore the overall strength of the pile body can be optimal; no main reinforcing bars are arranged on the areas bearing no force, and therefore cost is reduced, it is ensured that the strength of all parts of the pile body is balanced, and the performance of the sheet pile shaped like the Chinese character 'ji' can reach the optimal state.
Description
Technical field
The invention belongs to the technical field of the pile foundation engineering of all kinds of architectural structure system, particularly relate to a few font sheet piles of a kind of improved properties.
Background technology
U-shaped sheet pile (also referred to as a few font sheet piles) is because of its advantage having good mechanical property, being beneficial to manufacture simultaneously, obtain increasingly using widely, be especially suitable for all kinds of buildings construction time go along with sb. to guard him use, such as the regulation etc. of large-scale hypogee, side slope, tunnel, port and pier quaywall and channel revetment.
A few its structures of font sheet pile include pile body, pile body by top, be positioned at the waist of the left and right sides, top downward-sloping extension and be positioned at bottom two waists and outwards horizontal-extending lower flange forms, the cross section of pile body is several fonts being made up of top, two waists and two lower flanges；For convenience of formation protecting wall that each a few font sheet piles are stitched together, in two lower flanges, the side of one lower flange is provided with along the extended convex tendon of the length direction of lower flange, the side of another lower flange is provided with can inserting splicing mutually along the extended slot of the length direction of lower flange, convex tendon and slot.
The quality of a few font sheet pile strength characters directly affects this quality, therefore main muscle and stirrup all can be set inside a few font sheet piles, main muscle how layout and layout are how many, it it is the key factor affecting a few font sheet pile strength characters, main muscle layout is too many, can affect the cost of sheet pile, and main muscle also not necessarily makes a few font sheet pile strength character best too much, additionally the strength character of main muscle how a few font sheet pile each several part of layout guarantee all reaches the best, will not attend to one thing and lose sight of another.The layout of right existing a few main muscle of font sheet pile is comparatively random, causes that existing a few font sheet pile can not reach good balance between strength character and cost.
Have again, existing a few font sheet pile is in piling construction process, owing to impacting of pile monkey is easily damaged in the generation crack, top of pile body or corner, not only affect go along with sb. to guard him attractive in appearance, also can affect the structural behaviour of a few font sheet pile, for solving this problem, the metal end plate that someone makes at the fixing metal material of pile crown, construction because going along with sb. to guard him needs substantial amounts of a few font sheet piles, and the end such as every block of sheet pile is respectively provided with metal end plate, then be greatly increased construction costs.Go along with sb. to guard him and how construction guarantees be tightly combined between two, be also the important indicator checked and go along with sb. to guard him quality.How to solve the problem that a few font sheet pile tops in piling process are damaged, and to guarantee to combine closely between two in piling construction process be those skilled in the art's technical problem underlying in the urgent need to address.
For a few font sheet piles are sling, traditional mode is that the end face at the top of pile body squeezes into fixing multiple suspension hook, suspension hook is preferred with four, it is distributed in rear and front end, top often to hold and arrange two suspension hooks, it is each passed through each suspension ring with lifting rope when hanging, then catches in the middle part of lifting rope a few font sheet pile levels are hung toward deposit position with crane.When a few font sheet piles vertically being sling, then lifting rope is placed through two suspension ring of side and lifts by crane, because suspension ring are positioned at the side of a few font sheet pile, when vertically slinging, a few font sheet piles have bigger inclination certainly, it is unfavorable for hanging a few font sheet piles and drives piles toward pile driving position, for solving this problem, be usually and adopt special lifting rope binding method, a few font sheet piles that ability basic guarantee is sling are vertical, this lifting rope improving bud grafting is complex, and length consuming time, hang an efficiency low.
Summary of the invention
The technical problem to be solved is a few font sheet piles providing the main muscle within a kind of pile body and the rationally distributed improved properties of stirrup for above-mentioned prior art present situation, these a few font sheet piles are while ensureing self good strength performance, take into account cost requirement, the intensity of pile body each several part additionally also can be made to keep balanced preferably.
This invention address that the technical scheme that above-mentioned technical problem adopts is: a few font sheet piles of a kind of improved properties, including the pile body being provided with many main muscle and stirrup in it, pile body by top, be positioned at the waist of the left and right sides, top downward-sloping extension and be positioned at bottom two waists and outward extending lower flange forms, the cross section of pile body is several fonts being made up of top, two waists and two lower flanges, and described stirrup interval is arranged on main muscle；It is characterized in that: main ribs is divided into two parts, a part is for being positioned at the main muscle in top of tip position, another part is the main muscle in bottom being positioned at position, two lower flanges, total radical of the main muscle in described top is even number, and equal to the total radical sum of the main muscle in bottom of two lower flanges, the radical of the main muscle in bottom of each lower flange is identical.
The radical of main muscle can not be too many, sheet pile cost can be increased too much, the radical of main muscle very little, then can not can not make sheet pile have good intensity very little, and additionally the layout of main muscle can not be attended to one thing and lose sight of another, want equilibrium, such guarantee sheet pile each position intensity is basically identical, repeatedly calculates through this area engineer and tests, as preferably, the radical of the main muscle in above-mentioned top is 4～24, and the radical of the main muscle in bottom of each lower flange is 2～12；The main muscle in top interior spaced apart radical in the same plane is up to 6, and when the main muscle in top is more than 6, then the main muscle in top is divided into two-layer or multi-tier arrangement；The main muscle in bottom at each lower flange place interior spaced apart radical in the same plane is up to 3, and when the main muscle in bottom at each lower flange place is more than 3, then the main muscle in bottom is divided into two-layer or multi-tier arrangement.
It is under bilevel state at the main muscle of the main muscle in top and bottom, the radical of the main muscle in top on upper strata is 6, the main muscle in all the other tops is arranged in lower floor, the radical of the main muscle in bottom of lower floor is 3, bottom all the other, main muscle is arranged in upper strata, described stirrup is also classified into upper and lower two-layer, and correspondence is shelved on the main muscle of corresponding a layer.So can better strengthen the intensity of sheet pile.
Because sheet pile is in piling process, its two ends stress is bigger, the requirement of strength that sheet pile two ends are needed is higher, improve further, the two ends of above-mentioned pile body are respectively arranged with one section of hoop reinforcement, pile body part beyond hoop reinforcement is the normal district of stirrup, and in the unit length of hoop reinforcement, the quantity of stirrup is more than the quantity of stirrup in the unit length in the normal district of stirrup.Each position intensity, distinguishes is arranged, while proof strength requires, reduces cost as far as possible.
As preferably, the length of above-mentioned hoop reinforcement is 50cm～200cm, and in hoop reinforcement, the spacing between adjacent two stirrups is 8cm～12cm, and in the normal district of stirrup, the spacing between adjacent two stirrups is 15cm～20cm.In the length of this encrypted area and encrypted area, in unit length, the spacing of stirrup is the most reasonable, namely meets requirement of strength, minimizes cost again.
Further improve, above-mentioned top is divided into two sections along pile body length direction, one section is thickened area, another section is normal district, the thickness of thickened area is more than the thickness in normal district, the length of thickened area is less than the length in normal district, and thickened area is positioned at the pile crown position of pile body, is connected by chamfered transition district between described thickened area with normal district.Thickened area forms transition gradually with normal district by chamfered transition district, will in combination with better, also increasing the intensity of thickened area.The top of the pile crown position being positioned at pile body is formed with thickened area, the cross-sectional area making pile crown position strengthens, the intensity of pile crown also increases simultaneously, so in piling process, because the contact area of pile monkey with pile crown increases, can by pile monkey impulsive force scatter, again because of the intensity enhancing of pile crown, under both combined effect, effectively guarantee in piling process, pile crown is not easily broken or damaged, can be greatly improved the workability of stake.It also ensures that the structural behaviour of the attractive in appearance and a few font sheet pile gone along with sb. to guard him, and compares with increasing metal end plate, arranges thickened area lower in cost, and without additionally fixing step, only sheet pile mould need to be made accommodation, and operation is simple.
Thickened area can not be too thick oversize, too thick oversize can increase sheet pile cost, thickened area can not be too thin too short, too thin too short, breakage-proof effect can not be played very well, repeatedly calculate through this area engineer and test, as preferably, the thickness of above-mentioned thickened area is 12cm～60cm, and the length of described thickened area is 30cm～150cm.For increasing the intensity of thickened area further, in above-mentioned thickened area, stirrup layout is closeer more, and the spacing between adjacent two stirrups is 3cm～6cm.
Further improve, it is arranged in two described lower flanges of a tail, the outside of one of them lower flange has the inclined-plane sloping inwardly and extending to a breech face gradually, inclined-plane forms the stake tail angle of wedge with vertical direction, because stake tail side forms the stake tail angle of wedge, such sheet pile is in squeezing into process, earth can be formed soil compaction effect by the stake tail angle of wedge, squeeze into the side that sheet pile can be pressed adjacent in process adjacent previous joint tabular lower flange, adjacent two tabulars combine tightr before and after guaranteeing, by sheet pile combination formed to go along with sb. to guard him intensity higher.The angle of the stake tail angle of wedge can not be too big, or shadow incoming vertical length in inclined-plane is oversize, too big oversize can affect pile body tail end intensity, certainly can not be too little too short, otherwise can its less than due soil compaction effect, as preferably, the angle of the stake tail angle of wedge is between 15 °～60 °, and shadow incoming vertical length in inclined-plane is 20cm～50cm.
For ensureing that pile body is under the state of slinging, pile body is perpendicular to the ground, and above-mentioned top is provided with through-thickness in close pile crown position and runs through the lifting eye at top, and this lifting eye is positioned at the normal district at top.When piling lifting, one rod iron is inserted lifting eye, the two ends of rod iron are exposed, being fixed on the rod iron exposed with the colligation respectively of the two ends of lifting rope again, just can be sling by pile body by lifting lifting rope, the colligation of lifting rope is convenient, ensure that the force direction of lifting is on same axis with the position of centre of gravity of pile body, make pile body and ground substantially vertical, be beneficial to and these a few font sheet piles hung toward piling position, it is simple to construction.
Protecting wall mutually it is spliced to form for ease of adjacent a few font sheet piles, in two described lower flanges of above-mentioned pile body, the side of one lower flange is provided with along the extended convex tendon of the length direction of lower flange, the side of another lower flange is provided with along the extended slot of the length direction of lower flange, described convex tendon and slot can splice mutually in inserting, because of the existence of slot, for strengthening the pile body intensity at slot position place, in described stirrup, corresponding slot position is formed with reinforcement portion.
Compared with prior art, it is an advantage of the current invention that: through this area engineer's multiple authentication and test, layout and the radical of the main muscle in pile body have been done rational deployment and setting by it, it is provided with main muscle in the position of the most stress of pile body, sheet pile bulk strength is made to reach the best, simultaneously, in the region not stressed, it is not provided with main muscle, reduce cost, and the main muscle in bottom total radical sum of position, two lower flanges is equal to the top total radical of main muscle, the radical of the main muscle in bottom of position, two lower flanges is identical, then ensure again the intensity equalization of pile body each several part, and then make these a few font sheet pile performances reach optimum state.
Accompanying drawing explanation
Fig. 1 is the perspective view one of the embodiment of the present invention；
Fig. 2 is the perspective view two of the embodiment of the present invention；
Fig. 3 is the side view in the pile crown direction of the embodiment of the present invention；
Fig. 4 is the side view in the stake tail direction of the embodiment of the present invention；
Fig. 5 is the embodiment of the present invention main muscle schematic layout pattern one (8 main muscle)；
Fig. 6 is the embodiment of the present invention main muscle schematic layout pattern one (12 main muscle)；
Fig. 7 is the embodiment of the present invention main muscle schematic layout pattern one (16 main muscle layout type 1)；
Fig. 8 is the embodiment of the present invention main muscle schematic layout pattern one (16 main muscle layout type 2)；
Fig. 9 is the embodiment of the present invention main muscle schematic layout pattern one (20 main muscle)；
Figure 10 is the embodiment of the present invention main muscle schematic layout pattern one (24 main muscle)；
Figure 11 is that the embodiment of the present invention overlooks view；
Figure 12 is that the embodiment of the present invention faces view；
Figure 13 adopts the embodiment of the present invention as the perspective view going along with sb. to guard him use；
Figure 14 is that the embodiment of the present invention hangs a view.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Fig. 1～14, for a preferred embodiment of the present invention.
A kind of a few font sheet piles of improved properties, batch production manufactures, length is 10 meters, including the pile body 1 being provided with many main muscle and stirrup 2 in it, one end of pile body 1 is called pile crown, opposite other end is called a tail, and so-called pile crown refers to that the end that pile body 1 contacts with the pile monkey of piling machine, stake tail refer to pile body 1 and first insert that end on ground.Pile body 1 by top 11, be positioned at the waist 12 of the left and right sides, top 11 downward-sloping extension and be positioned at bottom two waists 12 and outwards horizontal-extending lower flange 13 forms, the cross section of pile body 1 is several fonts being made up of 11, two, top waist 12 and two lower flanges 13.Main muscle along the length direction of pile body 1 and radial arrangement, stirrup 2 is bent by reinforcing bar and in several fonts, each stirrup 2 interval is shelved on main muscle, and steel wire lashing can be adopted between stirrup 2 and main muscle to fix.
In two lower flanges 13 of pile body 1, the side of one of them lower flange 13 is provided with along the extended convex tendon 5 of the length direction of lower flange 13, the side of another lower flange 13 is provided with along the extended slot 6 of the length direction of lower flange 13, convex tendon 5 and slot 6 can splice mutually in inserting, so that adjacent more than two font sheet piles splicings are firm.Stirrup 2 is formed with reinforcement portion 21 corresponding to slot 6 position, and reinforcement portion 21 is C-shaped, and it can strengthen the pile body intensity at slot position place.
Main muscle is divided into two parts, a part is for being positioned at the main muscle 3a in top of position, top 11, another part is the main muscle 3b in bottom being positioned at position, two lower flanges 13, top main muscle 3a and bottom main muscle 3b meets the following conditions: total radical of top main muscle 3a is even number, and equal to the bottom total radical sum of main muscle 3b of position, two lower flanges 13, meanwhile, the radical of the bottom main muscle 3b of position, each lower flange 13 is identical.
The radical of the main muscle 3a in top is 4～24, and the radical of the main muscle 3b in bottom of each lower flange 13 is 2～12；Main muscle 3a interior spaced apart radical in the same plane in top is up to 6, when the main muscle 3a in top is more than 6, then the main muscle in top 3a is divided into upper and lower two-layer or multilamellar, after the radical of the main muscle 3a in top of every layer is booked 6, all the other are the main muscle 3a in top of next layer, now, stirrup 2 is also classified into upper and lower two-layer or multilamellar；The bottom main muscle 3b spaced apart radical in the same plane at each lower flange 13 place is up to 3, when the main muscle 3b in bottom at each lower flange 13 place is more than 3, then the main muscle 3b in bottom is upper and lower two-layer or multilamellar, the present embodiment is two-layer, after the radical of the main muscle 3b in bottom of every layer is booked 3, all the other are the main muscle 3b in bottom of next layer.Concrete, top main muscle 3a is relevant with the width of pile body with the radical of bottom main muscle 3b, and pile body width is more big, and the radical of top main muscle 3a and bottom main muscle 3b is more many.
As it is shown in figure 5, the radical of the main muscle 3a in top is 4, then each 2 of the bottom main muscle 3b at each lower flange 13 place.
As shown in Figure 6, the radical of the main muscle 3a in top is 6, then each 3 of the bottom main muscle 3b at each lower flange 13 place.
As shown in Figure 7, the radical of the main muscle 3a in top is 8, being divided into upper and lower two-layer, the radical of the main muscle 3a of top of the upper layer is 6, and the radical of the main muscle 3a in lower floor top is 2, then each 4 of the bottom main muscle 3b at each lower flange 13 place, being divided into upper and lower two-layer, the radical of the main muscle 3b in bottom of lower floor is 3, and the main muscle 3b in bottom on upper strata is 1, arrange near inboard, described stirrup 2 only a layer.
As shown in Figure 8, the radical of the main muscle 3a in top is 8, is divided into upper and lower two-layer, and the radical of the main muscle 3a of top of the upper layer is 6, the radical of the main muscle 3a in lower floor top is 2, then each 4 of the bottom main muscle 3b at each lower flange 13 place, is divided into upper and lower two-layer, and the radical of the main muscle 3b in bottom of lower floor is 3, the main muscle 3b in bottom on upper strata is 1, arranging near middle, stirrup 2 has two layers, and upper strata stirrup 2 correspondence is shelved on the top main muscle 3a and the main muscle 3b in bottom on upper strata.
As shown in Figure 9, the radical of the main muscle 3a in top is 10, being divided into upper and lower two-layer, the radical of the main muscle 3a of top of the upper layer is 6, and the radical of the main muscle 3a in lower floor top is 4, then each 5 of the bottom main muscle 3b at each lower flange 13 place, being divided into upper and lower two-layer, the radical of the main muscle 3b in bottom of lower floor is 3, and the main muscle 3b in bottom on upper strata is 2, stirrup 2 has two layers, and upper strata stirrup 2 correspondence is shelved on the top main muscle 3a and the main muscle 3b in bottom on upper strata.
As shown in Figure 10, the radical of the main muscle 3a in top is 12, being divided into upper and lower two-layer, the radical of the main muscle 3a of top of the upper layer is 6, and the radical of the main muscle 3a in lower floor top is 6, then each 6 of the bottom main muscle 3b at each lower flange 13 place, being divided into upper and lower two-layer, the radical of the main muscle 3b in bottom of lower floor is 3, and the main muscle 3b in bottom on upper strata is 3, stirrup 2 has two layers, and upper strata stirrup 2 correspondence is shelved on the top main muscle 3a and the main muscle 3b in bottom on upper strata.
Pile body 1 from pile crown and stake tail start be respectively arranged with one section to the hoop reinforcement M1 extended in the middle of pile body, pile body 1 is removed the hoop reinforcement M1 at two ends outer all the other be the normal district M2 of stirrup, the quantity of stirrup 2 in the quantity of stirrup 2 unit length more than the normal district M2 of stirrup in the unit length of hoop reinforcement M1.The length of hoop reinforcement M1 is 50cm～200cm, and in the M1 of hoop reinforcement, the spacing X1 between adjacent two stirrups 2 is 8cm～12cm, and in stirrup normal district M2, the spacing X2 between adjacent two stirrups 2 is 15cm～20cm.
Top 11 is divided into two sections along its length, one section is thickened area S1, another section is normal district S2, the thickness d 1 of the thickened area S1 thickness d 2 more than normal district S2, the length L1 of thickened area S1 is less than the length L2 of normal district S2, and thickened area S1 is positioned at the pile crown position of pile body 1, it is connected by chamfered transition district S3 between thickened area S1 with normal district S2.The thickness d 1 of thickened area S1 is 12cm～60cm, and the length L1 of thickened area S1 is 30cm～150cm.Thickened area S1 is positioned at the scope of hoop reinforcement M1, has additional stirrup 2 and make the layout of stirrup 2 in the S1 of thickened area closeer in the S1 of thickened area, and in the S1 of thickened area, the spacing X3 between adjacent two stirrups 2 is 3cm～6cm.
It is arranged in two lower flanges 13 of a tail, the outside of one of them lower flange 13 forms the inclined-plane 131 sloping inwardly and extending to a breech face gradually, inclined-plane 131 forms stake tail locking angle with vertical direction, the angle of stake tail locking angle is between 15 °～60 °, and shadow incoming vertical length H in inclined-plane 131 is 20cm～50cm.Because stake tail side forms the stake tail angle of wedge, such sheet pile is in squeezing into process, as shown in figure 13, earth can be formed soil compaction effect by stake tail locking angle, squeeze into the side that sheet pile can be pressed adjacent in process adjacent previous joint tabular lower flange 13, adjacent two tabulars combine tightr before and after guaranteeing, by sheet pile combination formed to go along with sb. to guard him intensity higher.
Top 11 is provided with through-thickness in the position near pile body 1 pile crown and runs through the lifting eye 4 at top 11, and this lifting eye 4 is positioned at the normal district S2 at top 11.The centrage of lifting eye 4 overlaps with top 11 centrage in the direction of the width, it is ensured that the lifting position after lifting overlaps with the centrage of pile body, is further ensured that under the state of slinging, and pile body is perpendicular to the ground.Distance between axis and the end face of pile crown of lifting eye 4 can not oversize can not be too short, oversize, the length of lifting rope can be increased, insert the rod iron in lifting eye and to bear the weight of whole pile body, as afore-mentioned distance is too short, rod iron can be made upwards to pass pile body, causing that pile body falls, as preferably, the distance between axis and the end face of pile crown of lifting eye 4 is 0.1～0.15 times of pile body length.
As shown in figure 14, during piling lifting, one rod iron 7 is inserted lifting eye 4, and the both sides end face at top 11 is exposed at the two ends of rod iron 7 respectively, then is fixed on the rod iron 7 exposed with the two ends colligation respectively of lifting rope 8, just can pass through to lift by crane lifting rope 8 to be sling by pile body 1, the colligation of lifting rope 8 is convenient, ensures that the force direction of lifting is on same axis with the position of centre of gravity of pile body 1 simultaneously so that pile body 1 is substantially vertical with ground, it is beneficial to and a few font sheet piles is hung toward piling position, it is simple to construction.
The top of the pile crown position because being positioned at pile body 1 is formed with thickened area S1, the cross-sectional area making pile crown position strengthens, the intensity of pile crown also increases simultaneously, so in piling process, because the contact area of pile monkey with pile crown increases, can by pile monkey impulsive force scatter, again because of the intensity enhancing of pile crown, under both combined effect, effectively guarantee in piling process, pile crown is not easily broken or damaged, the structural behaviour of the attractive in appearance and a few font sheet pile guaranteeing to go along with sb. to guard him, compare with increasing metal end plate, it is lower in cost that thickened area is set, and without additionally fixing step, only sheet pile mould need to be made accommodation, operation is simple.
Although the preferred embodiments of the present invention described in detail above, it is to be clearly understood that for a person skilled in the art, the present invention can have various modifications and variations.All make within the spirit and principles in the present invention any amendment, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. a few font sheet piles of an improved properties, including the pile body (1) being provided with many main muscle and stirrup (2) in it, pile body (1) by top (11), be positioned at the waist (12) of (11) left and right sides, top downward-sloping extension and be positioned at two waists (12) bottoms and outward extending lower flange (13) form, the cross section of pile body (1) is several fonts being made up of top (11), two waists (12) and two lower flanges (13), and described stirrup (2) interval is arranged on main muscle；It is characterized in that: main ribs is divided into two parts, a part is for being positioned at the main muscle in the top (3a) of top (11) position, another part is for being positioned at the main muscle in the bottom (3b) of two lower flange (13) positions, total radical at the main muscle in described top (3a) is even number, and equal to the total radical sum in the main muscle in the bottom (3b) of two lower flanges (13), the radical of the main muscle in the bottom (3b) of each lower flange (13) is identical.
2. a few font sheet piles of improved properties according to claim 1, it is characterised in that: total radical at the main muscle in described top (3a) is 4～24, and the radical of the main muscle in the bottom (3b) of each lower flange (13) is 2～12；The main muscle in top (3a) interior spaced apart radical in the same plane is up to 6, and when total radical at the main muscle in top (3a) is more than 6, then the main muscle in top (3a) is divided into two-layer or multi-tier arrangement；The main muscle in the bottom (3b) of each lower flange (13) interior spaced apart radical in the same plane is up to 3, when the main muscle in the bottom (3b) of each lower flange (13) is more than 3, then the main muscle in bottom (3b) is divided into two-layer or multi-tier arrangement.
3. a few font sheet piles of improved properties according to claim 2, it is characterized in that: be under bilevel state at the main muscle in described top (3a) and bottom main muscle (3b), the radical at the main muscle in the top (3a) on upper strata is 6, all the other tops main muscle (3a) are arranged in lower floor, the radical of the main muscle in the bottom (3b) of lower floor is 3, bottom all the other, main muscle (3b) is arranged in upper strata, described stirrup (2) is also classified into upper and lower two-layer, and correspondence is arranged on the main muscle of corresponding a layer.
4. a few font sheet piles of improved properties according to claim 1, it is characterized in that: the two ends of described pile body (1) are respectively arranged with one section of hoop reinforcement (M1), pile body (1) part beyond hoop reinforcement (M1) is the normal district of stirrup (M2), and in the unit length of hoop reinforcement (M1), the quantity of stirrup (2) is more than the quantity of stirrup (2) in the unit length in the normal district of stirrup (M2).
5. a few font sheet piles of improved properties according to claim 4, it is characterized in that: the length of described hoop reinforcement (M1) is 50cm～200cm, in hoop reinforcement (M1), the spacing (X1) between adjacent two stirrups (2) is 8～12cm, and in the normal district of stirrup (M2), the spacing (X2) between adjacent two stirrups (2) is 15cm～20cm.
6. a few font sheet piles of improved properties according to claim 1, it is characterized in that: described top (11) are divided into two sections along pile body (1) length direction, one section is thickened area (S1), another section is normal district (S2), the thickness (d1) of thickened area (S1) thickness (d2) more than normal district (S2), the length (L1) of thickened area (S1) length (L2) less than normal district (S2), and thickened area (S1) is positioned at the pile crown position of pile body (1), it is connected by chamfered transition district (S3) between described thickened area (S1) with normal district (S2).
7. a few font sheet piles being beneficial to piling according to claim 6, it is characterized in that: the thickness (d1) of described thickened area (S1) is 12cm～60cm, the length (L1) of described thickened area (S1) is 30cm～150cm；In described thickened area (S1), the spacing (X3) between adjacent two stirrups (2) is 3cm～6cm.
8. a few font sheet piles of improved properties according to claim 1, it is characterized in that: be arranged in two described lower flanges (13) of a tail, the outside of one of them lower flange (13) has the inclined-plane (131) sloping inwardly and extending to a breech face gradually, this inclined-plane (131) forms the stake tail angle of wedge (α) with vertical direction, the angle of the stake tail angle of wedge (α) is between 15 °～60 °, and the incoming vertical length of inclined-plane (131) shadow (H) is 20cm～50cm.
9. a few font sheet piles of improved properties according to claim 1, it is characterized in that: described top (11) are provided with through-thickness in the pile crown position near pile body (1) and run through the lifting eye (4) of top (11), and this lifting eye (4) is positioned at the normal district (S2) at top (11).
10. a few font sheet piles according to the arbitrary described improved properties of claim 1～9, it is characterized in that: in two described lower flanges (13) of described pile body (1), the side of one lower flange (13) is provided with convex tendon (5) along its length, the side of another lower flange (13) is provided with slot (6) along its length, described convex tendon (5) and slot (6) can splice mutually in inserting, and described stirrup (2) is formed with reinforcement portion (21) corresponding to the position of slot (6).
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| CN106436648A (en) * | 2016-11-22 | 2017-02-22 | 海盐机械设备制造有限公司 | Quickly-constructed combined prefabricated river channel revetment |
| CN106759259A (en) * | 2017-03-17 | 2017-05-31 | 顾东东 | The U-shaped prestressed concrete station stake of high intensity |
| CN107313425A (en) * | 2017-06-27 | 2017-11-03 | 俞晓东 | Reinforcement cage structure for preparing H type concrete-piles |
| CN109322280A (en) * | 2018-11-07 | 2019-02-12 | 上海市基础工程集团有限公司 | Prefabricated protection against erosion flood-control wall tube pile structure and construction method |
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| CN109322280A (en) * | 2018-11-07 | 2019-02-12 | 上海市基础工程集团有限公司 | Prefabricated protection against erosion flood-control wall tube pile structure and construction method |
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