阅读说明：本技术 一种船坞止水构件及其制备安装方法 (Dock water stopping component and preparation and installation method thereof ) 是由 赵安 盛健 刘耀顺 徐咏春 马丽 于 2020-11-27 设计创作，主要内容包括：本发明提供一种船坞止水构件及其制备安装方法,船坞止水构件包括：钢板桩组,包含多个钢板桩,钢板桩包括钢板桩本体和连接构件,连接构件包括凸形翼缘板板和凹形翼缘板,凸形翼缘板板和凹形翼缘板分别位于钢板桩的两侧,相邻两个钢板桩之间通过凸形翼缘板板和凹形翼缘板相互扣合在一起,多个“]”字型限位板和平板限位钢板,分别设置在钢板桩翼缘板两侧,固定焊接。本发明的船坞止水构件,在锤击送桩时对钢板桩进行有效的限位,用“]”字型限位板和平板限位钢板消耗掉侧向动能,可明显保障钢板桩在施工过程中翼缘板的扭曲和锁口的脱落变形。(The invention provides a dock water stopping component and a preparation and installation method thereof, wherein the dock water stopping component comprises: steel sheet pile group contains a plurality of steel sheet piles, and the steel sheet pile includes steel sheet pile body and connecting elements, and connecting elements includes convex edge of a wing board and concave flange board, and convex edge of a wing board and concave flange board are located the both sides of steel sheet pile respectively, and be in the same place through convex edge of a wing board and concave flange board looks lock each other between two adjacent steel sheet piles, and a plurality of "]" style of calligraphy limiting plates and dull and stereotyped spacing steel sheet set up respectively in steel sheet pile flange board both sides, fixed welding. The dock water stopping component can effectively limit the steel sheet pile when the pile is hammered and sent, consumes lateral kinetic energy by the J-shaped limiting plate and the plate limiting steel plate, and can obviously ensure the distortion of the flange plate and the falling deformation of the locking notch of the steel sheet pile in the construction process.)

1. A dock seal member, comprising:

the steel sheet pile group comprises a plurality of steel sheet piles, each steel sheet pile comprises a steel sheet pile body and a connecting member, each connecting member comprises a convex flange plate and a concave flange plate, the convex flange plates and the concave flange plates are respectively positioned at two sides of the steel sheet pile, two adjacent steel sheet piles are mutually buckled together through the convex flange plates and the concave flange plates,

and the plurality of J-shaped limiting plates and the flat plate limiting steel plates are respectively arranged on two sides of the flange plate of the steel sheet pile and are fixedly welded.

2. A dock seal member as claimed in claim 1, wherein:

the J-shaped limiting plates and the flat plate limiting steel plates on the two sides are not at the same section height.

3. A dock seal member as claimed in claim 1, wherein:

the elevation from the lowest plate to the mud surface in the J-shaped limit plate and the flat plate limit steel plate is less than or equal to 2 m.

4. A dock seal member as claimed in claim 1, wherein:

the elevation from the lowest plate to the mud surface in the J-shaped limit plate and the flat plate limit steel plate is more than or equal to 1 meter and less than or equal to 2 meters.

5. A dock seal member as claimed in claim 1, wherein:

the spacing between each "]" -shaped limit plate is 0.5 m.

6. A dock seal member as claimed in claim 1, wherein:

the spacing between each flat plate limiting steel plate is 0.5 m.

7. A dock seal member as claimed in claim 1, wherein:

the clear length of the main board of the ']' -shaped limit plate is 150mm, the clear length of the side board is 100mm, the height of the board is 100mm, the thickness of the board is 20mm,

the flat limiting steel plate is 100mm wide, 20mm high and 150mm long.

8. A method of preparing and installing a dock waterstop member as claimed in claim 1, comprising:

step one, manufacturing steel sheet piles, wherein the steel sheet piles are hexagonal and are formed by bending or welding steel sheets, the left side and the right side of the hexagon are respectively welded with a concave flange steel sheet and a convex flange steel sheet, and the positions of the concave flange steel sheet of one adjacent steel sheet pile and the convex flange steel sheet of the concave flange steel sheet of the other steel sheet pile are matched;

step two, buckling the concave flange steel plates and the convex flange steel plates of a plurality of two adjacent steel plate piles together to form a steel plate pile group;

and step three, taking a preset number of J-shaped limiting plates and flat plate limiting steel plates, welding the J-shaped limiting plates on the side of the concave flange steel plate, welding the flat plate limiting steel plate on the side of the convex flange steel plate, wherein the welding angle slope height is less than 6mm, and the length of a welding seam is half of the plate length.

9. A method of preparing and installing a dock waterstop member as claimed in claim 8, wherein:

during welding, the limiting plates on the two sides are not at the same section height.

10. A method of preparing and installing a dock waterstop member as claimed in claim 8, wherein:

the spacing between each "]" -shaped limiting plate is 0.5m, and the spacing between each flat plate limiting steel plate is 0.5 m.

Technical Field

The invention relates to a dock water stop member and a preparation and installation method thereof, and belongs to the technical field of water transportation engineering.

Background

In the construction process of the steel sheet pile of the dock wall, the pile feeding and pile feeding are generally carried out by adopting vibration hammering pile feeding, the piles are inserted into a row of screen shapes, then the piles are fed at intervals, the height of the pile top is finally 6-8m to the mud surface, the depth of the inserted piles is shallow during insertion, and the lateral eccentric force generated by a vibration hammer to a pressed member in the construction process can be consumed by the free rotation of the steel sheet pile. When the pile top of a row of piles is 6-8m away from the mud surface and the piles are driven to hammer below the mud surface, the lower part of the pile body cannot freely rotate to a certain extent due to the consolidation of front and rear soil bodies, the vertical force generated in the hammering process cannot be guaranteed to be at the same position due to the steel plate pile-shaped mandrel and the hammering central point, the front and rear plates of the steel plate pile are different in weight, and the lateral force generated by the compression member is consumed by the front and rear vibration of the locking port of the flange plate. The locking notch of the steel sheet pile is easy to loosen and fall off after the process is continued. The whole steel sheet pile also can produce a certain amount of deformation, all has serious influence to the security, the suitability, the durability of later stage structure.

Disclosure of Invention

The invention aims to provide a dock water stop member and a preparation and installation method thereof, which are used for reducing damage to a locking notch of a flange plate in a hammering process.

The invention adopts the following technical scheme:

the invention provides a dock water stop member, which is characterized by comprising: steel sheet pile group contains a plurality of steel sheet piles, and the steel sheet pile includes steel sheet pile body and connecting elements, and connecting elements includes convex edge of a wing board and concave flange board, and convex edge of a wing board and concave flange board are located the both sides of steel sheet pile respectively, and be in the same place through convex edge of a wing board and concave flange board looks lock each other between two adjacent steel sheet piles, and a plurality of "]" style of calligraphy limiting plates and dull and stereotyped spacing steel sheet set up respectively in steel sheet pile flange board both sides, fixed welding.

Further, the dock seal member of the present invention is also characterized in that: the J-shaped limiting plates and the flat plate limiting steel plates on the two sides are not at the same section height.

Further, the dock seal member of the present invention is also characterized in that: the elevation from the lowest plate to the mud surface in the J-shaped limit plate and the flat plate limit steel plate is less than or equal to 2 m.

Further, the dock seal member of the present invention is also characterized in that: the elevation from the lowest plate to the mud surface in the J-shaped limit plate and the flat plate limit steel plate is more than or equal to 1 meter and less than or equal to 2 meters.

Further, the dock seal member of the present invention is also characterized in that: the spacing between each "]" -shaped limit plate is 0.5 m.

Further, the dock seal member of the present invention is also characterized in that: the spacing between each flat plate limiting steel plate is 0.5 m.

Further, the dock seal member of the present invention is also characterized in that: the clear length of a main plate of the "]" shaped limit plate is 150mm, the clear length of a side plate is 100mm, the plate height is 100mm, the thickness is 20mm, the width of a flat limit steel plate is 100mm, the height is 20mm, and the length is 150 mm.

The invention also provides a preparation and installation method of the dock water stopping component, which is characterized by comprising the following steps:

step one, manufacturing steel sheet piles, wherein the steel sheet piles are hexagonal and are formed by bending or welding steel sheets, the left side and the right side of the hexagon are respectively welded with a concave flange steel sheet and a convex flange steel sheet, and the positions of the concave flange steel sheet of one adjacent steel sheet pile and the convex flange steel sheet of the concave flange steel sheet of the other steel sheet pile are matched;

step two, buckling the concave flange steel plates and the convex flange steel plates of a plurality of two adjacent steel plate piles together to form a steel plate pile group;

and step three, taking a preset number of J-shaped limiting plates and flat plate limiting steel plates, welding the J-shaped limiting plates on the side of the concave flange steel plate, welding the flat plate limiting steel plate on the side of the convex flange steel plate, wherein the welding angle slope height is less than 6mm, and the length of a welding seam is half of the plate length.

Further, the preparation and installation method of the dock water stopping member of the invention also has the following characteristics: during welding, the limiting plates on the two sides are not at the same section height.

Further, the preparation and installation method of the dock water stopping member of the invention also has the following characteristics: the spacing between each "]" -shaped limiting plate is 0.5m, and the spacing between each flat plate limiting steel plate is 0.5 m.

The dock water stopping component has the advantages that the steel sheet pile is effectively limited when the pile is hammered and sent, lateral kinetic energy is consumed by the J-shaped limiting plate and the plate limiting steel plate, and the flange plate can be obviously twisted and the locking notch can be obviously prevented from falling and deforming in the construction process of the steel sheet pile.

Drawings

Fig. 1 is a structural schematic view of a dock waterstop member.

Fig. 2 is a schematic view of a plurality of dock seal members arranged longitudinally on a steel sheet pile.

Fig. 3a and 3b are schematic diagrams of the vertical pressure P versus the lateral vibration frequency w.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 and 2, the dock waterstop member includes: a set of J-shaped limit plates and flat plate limit steel plates. One side of the concave flange steel plate 31 adopts a J-shaped limiting plate 1, the J-shaped limiting plate 1 adopts a Q355 manganese steel plate, the net length of the main plate 11 is 150mm, the net length of the side plate 12 is 100mm, the plate height is 100mm, and the plate thickness is 20 mm. In the present embodiment, a total of five plates are provided with a plate interval of 0.5 m. Convex flange board 32 one side is dull and stereotyped spacing steel sheet 2, and dull and stereotyped spacing steel sheet 2 also adopts square Q355 manganese steel sheet, and dull and stereotyped spacing steel sheet 2 is wide 100mm, high 20mm, and length 150mm, interval 0.5m, and similarly, set up five boards in total in this embodiment. The elevation of the flat plate limiting steel plate 2 is staggered with the horizontal cross plate. The positions of the "]" -shaped limiting plate and the flat plate limiting steel plate are determined by the construction operability in the construction process, and the elevation from the lowest limiting plate to the mud surface is less than 2 m.

The steel sheet pile is not only a water stop component of the dock chamber, but also a pulled framework of the whole riveting system in the dock structure and a soil retaining structure of the dock, bears the self weight of part of galleries, and belongs to an important component in the whole dock chamber structure. The steel guide frame is used for limiting the main board of the steel sheet pile structure, and the control and the dock interior board surface are on the same straight line.

For the steel sheet pile, the steel sheet pile can be considered as an ideal elastic body, the stress source of the steel sheet pile is mainly the upper impact force, the lower part of the steel sheet pile is supported by a soil layer, and the left part and the right part of the steel sheet pile are limited by the soil layer. The analysis can be carried out according to the statically determinate structure of the rod piece, and the two sides are hinged. The steel sheet pile can be processed according to a simply supported beam, the plate width spacing is L, the vertical pressure is P, the free vibration is considered, the elasticity analysis is carried out on the upper section of the component, and the axial force, the shearing force, the bending moment and the inertia force during vibration on the x section and the x + dx section are represented by P, Q, M respectively.

In the vibration process, the degree of winding of x at a certain moment t is y (x, t), the linear density of the beam is rho of the material density of the steel plate pile, the cross-sectional area is A, the rigidity is EI, and the generated inertia force isThe direction of the vibration acceleration is opposite to the vibration acceleration, and the acceleration formula isBy the darenbell principle ∑ Y ═ 0, ∑ Y ═ 0, andthereby establishing a small eccentric vibration differential equation of the pressure rod member.

Thereby bringing in the boundary condition that,

it is known that with borderline conditions, t (t) x y (x) y (t, x),

∴

from the theory of elasticity mechanics

∵

∴

Where w is the vibration frequency of the rod.

Now, a second assumption is made when the forces on the boundary conditions in the y-axis direction are all 0;

considering the natural frequency of time, y (0, t) is 0, y (L, t) is 0,

Y^/(0)＝0,Y^/(L)＝0.y^//(L)＝0,y^//(0)＝0

(ii) bringing y (x, t) into post-solution;

bringing in a constant A, B, C, D. Y (x) ═ Asin β x + Bcos β x + Csin α x + Dcos α x

Obtaining by solution:substituting D ═ 0, B ═ 0, sin β L ═ 0 in the above formula into a characteristic equation, and making β L ═ n pi (n ═ 1,2,3,4,5.. said.)

Where n is the natural frequency of the vibration-type controlled variable, ω_n ²Is a vibration-type variable.

Will be provided withIn the belt

It has been demonstrated that the vertical pressure P has a strongly correlated linear relationship with the lateral vibration frequency w. The vertical force will cause lateral vibration and lateral deflection, with the specific deflection direction referenced to the small eccentric displacement direction. Therefore, the steel sheet pile will generate lateral force during hammering pile feeding.

Along with the constantly changing of diesel hammer hammering power, pile shaft yawing force is not the definite value, and this limiting plate quantity and size are field test and get. Five limiting plates are arranged on the left and right of the limiting plate, the distance is 0.5m, the square plate is subjected to double-sided welding, and the requirement on the welding angle slope height is less than 6 mm. The weld length was half the plate length and 75 mm. Because the contact area of the "]" -shaped limiting plate 1 and the parent metal is small, the welding seam adopts semi-penetration welding. In the experimental process, plates with different numbers are respectively placed at different positions of the steel sheet pile, the final effect is displayed to be optimal at the position 1-2m away from the mud ground, the protection effect of the front and rear five limiting plates on the flange plate is the best, and the materials are saved the most.

This embodiment has carried out the consumption to the lateral force that steel sheet pile side flange board both sides were aroused by vertical impact, has played the guard action of certain degree to the fore shaft, and the cost is lower, easily popularizes and implements.

A preparation and installation method of a dock waterstop member is characterized by comprising the following steps:

step one, combining steel sheet piles: the two sides of each steel sheet pile are respectively provided with a concave flange steel plate and a convex flange steel plate, and the concave flange steel plates and the convex flange steel plates of two adjacent steel sheet piles are buckled together; the spacing between each "]" -shaped limiting plate is 0.5m, and the spacing between each flat plate limiting steel plate is 0.5 m.

And step two, taking a preset number of J-shaped limiting plates and flat plate limiting steel plates, welding the J-shaped limiting plates on the side of the concave flange steel plate, and welding the flat plate limiting steel plates on the side of the convex flange steel plate, wherein the requirement of the welding angle slope height is less than 6 mm. The weld length is half the plate length. During welding, the limiting plates on the two sides are not at the same section height.

This embodiment increases stop device on the basis of former scheme, has replaced the vibration to the fore shaft at the in-process of hammering pile feeding of steel sheet pile flange board with external component to control the distortion of steel sheet pile and rotate to a certain limit, strengthened the stability of structure. The steel sheet pile who does not weld the limiting plate after later stage earthwork excavates and install the limiting plate contrasts, from fore shaft outward appearance, flange plate straightness to carry out the analysis with ultrasonic inspection, prove to be superior to direct construction the effect behind the installation limiting plate after carrying out the inspection statistics to the steel sheet pile.

For not adopting "]" style of calligraphy limiting plate and the spacing steel sheet of flat, directly carry out the effect of hammering to the steel sheet pile, the limiting plate of this embodiment has effectively avoided fore shaft damage and flange board crooked. Better guarantees are provided for the overall stability and water stopping effect of the steel sheet pile.