CN212375889U - Steel sheet pile cofferdam wall body - Google Patents
Steel sheet pile cofferdam wall body Download PDFInfo
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- CN212375889U CN212375889U CN202020454387.9U CN202020454387U CN212375889U CN 212375889 U CN212375889 U CN 212375889U CN 202020454387 U CN202020454387 U CN 202020454387U CN 212375889 U CN212375889 U CN 212375889U
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Abstract
The utility model relates to a steel sheet pile cofferdam wall body. The steel sheet pile cofferdam wall body comprises a plurality of wall body units, each wall body unit comprises a wall body group consisting of a plurality of steel sheet piles which are sequentially connected and single-side locking units arranged at two ends of the wall body group, and each single-side locking unit is provided with an outward opening; each wall body unit is sequentially arranged, I-shaped steel is inserted into the openings of the two adjacent unilateral locking units to form locking buckles to connect the two adjacent wall body units, and the wall body units are sequentially connected to form a closed cofferdam wall body. In the utility model, the wall units are connected by inserting I-steel, thereby being convenient for the assembly and disassembly of the cofferdam wall body and effectively avoiding the occurrence of welding deformation; after the cofferdam wall bodies are used in a single project, the cofferdams with different sizes can be formed by splicing different numbers of wall body units, and the subsequent turnover utilization rate is high.
Description
Technical Field
The utility model relates to a bridge foundation construction field, more specifically say, relate to a steel sheet pile cofferdam wall body.
Background
The cofferdam is a temporary enclosure structure constructed for constructing permanent water conservancy facilities in the water conservancy project construction. The cofferdam has the functions of preventing water and soil from entering the building position of the building so as to drain water in the cofferdam, excavate a foundation pit and build the building. The cofferdam is mainly used in hydraulic buildings in general, and the cofferdam is dismantled after being used up except for being used as a part of a formal building.
At present, the commonly used cofferdam wall body is formed by welding steel plates and section steel, the processing time of the cofferdam wall body is long, the welding workload among members is large, and welding deformation is easy to generate; the cofferdam wall body welded by the conventional steel plate and the section steel has a fixed size, and the subsequent turnover utilization rate is extremely low after a single project is used up.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to taking place welding deformation easily between prior art's cofferdam wall body component, and the not general defect of cofferdam wall body size provides a steel sheet pile cofferdam wall body.
The utility model provides a technical scheme that its technical problem adopted is: constructing a steel sheet pile cofferdam wall comprising:
the wall body units comprise wall body groups consisting of a plurality of steel sheet piles which are sequentially connected and single-side lock units arranged at two ends of the wall body groups, and the single-side lock units are provided with openings facing outwards;
and all the wall body units are sequentially arranged, and I-shaped steel is inserted into the openings of the two adjacent single-side locking units to form locking buckles so as to connect the two adjacent wall body units, so that all the wall body units are sequentially connected to form a closed cofferdam wall body.
Preferably, the cofferdam wall body is rectangular, the wall body group arranged at the corner position of the cofferdam wall body is of a right-angle structure, and two adjacent steel sheet piles arranged at the corner position of the wall body group are welded and connected; and adjacent steel sheet piles at other positions are mutually meshed and connected through locking notches.
Preferably, the top and the bottom of the wall body group are respectively provided with a capping channel steel and a bottom sealing steel plate which are matched with the widths of the wall body group, so that the transverse connection strength of each steel plate pile in the wall body group is enhanced at the top position and the bottom position respectively.
Preferably, the outer side and the inner side of the wall body group are respectively provided with a plurality of transverse connecting rods in the longitudinal direction, so as to respectively strengthen the transverse connecting strength of each steel sheet pile in the wall body group at different height positions.
Preferably, the single-side locking unit comprises an edge sealing channel steel and at least one locking steel pipe;
the edge sealing channel steel is embedded between the top sealing channel steel and the bottom sealing steel plate and is respectively abutted against the top sealing channel steel and the bottom sealing steel plate, a groove of the edge sealing channel steel faces the wall body group, and the end part of the edge sealing channel steel is abutted against a pile body of a steel sheet pile at the end part of the wall body group;
the hasp steel pipe is located the dorsal part of banding channel-section steel, the opening is located on the hasp steel pipe.
Preferably, the single-side locking unit further comprises a water stop connecting plate and a reinforcing plate;
the water stop connecting plate is arranged on the back side of a locking port of the steel sheet pile at the end part of the wall body group and extends towards the edge sealing channel steel direction to be connected with the edge sealing channel steel, and the water stop connecting plate is respectively abutted against the top sealing channel steel and the bottom sealing steel plate;
the reinforcing plate is simultaneously connected with the steel sheet pile at the end part of the wall body group, the water stop connecting plate and the edge sealing channel steel so as to enhance the connection strength among the reinforcing plate, the water stop connecting plate and the edge sealing channel steel.
Preferably, the number of the lock catch steel pipes is two, the lock catch steel pipes are respectively arranged at two ends of the edge sealing channel steel, and a steel pipe stiffening plate which extends towards the lock catch steel pipe and is abutted against the lock catch steel pipes is arranged at the back side of the edge sealing channel steel so as to reinforce the rigidity and the strength of the lock catch steel pipes.
Preferably, after two adjacent wall units are spliced with the I-shaped steel, the edge sealing channel steel and the lock catches at the two ends of the edge sealing channel steel enclose a space, and the space is filled with a waterproof filler.
Preferably, the transverse connection rod is including setting up the peripheral purlin of the well upper portion position in the wall body group outside, be equipped with coupling assembling on the peripheral purlin, coupling assembling includes:
the base is used for installing the connecting assembly on the peripheral purlin;
the pull rod support is vertically connected with the base and is provided with a through hole for inserting the counter-pull screw rod; and the number of the first and second groups,
the supporting blocks are arranged on two sides of the pull rod support, are simultaneously connected with the base and the pull rod support, and support and fix the pull rod support on the base;
the connecting assemblies on the peripheral purlins of the adjacent wall units are connected and fixed through split screw assemblies.
Preferably, the steel sheet pile comprises a larsen steel sheet pile.
Implement the utility model discloses a steel sheet pile cofferdam wall body has following beneficial effect:
the steel sheet piles are sequentially connected to form a wall body group, the single-side locking units are arranged at two ends of the wall body group to form wall body units, and the wall body units are connected through the inserted I-steel, so that the assembly and disassembly of the cofferdam wall body are facilitated, and the welding deformation phenomenon is effectively avoided; after the cofferdam wall bodies are used in a single project, the cofferdams with different sizes can be formed by splicing different numbers of wall body units, and the subsequent turnover utilization rate is high.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic structural view of an embodiment of a steel sheet pile cofferdam wall body of the present invention;
fig. 2 is a schematic structural view of the steel sheet pile shown in fig. 1;
fig. 3 is a schematic structural view of a first pattern 1A of the wall unit shown in fig. 1;
fig. 4 is a schematic structural view of a second pattern 1B of the wall unit shown in fig. 1;
FIG. 5 is an enlarged view of a portion of the area C in FIG. 4;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 7 is an enlarged view of a portion of the area D in FIG. 1;
fig. 8 is a schematic view of the connection between the capping channel steel and the edge sealing channel steel of some embodiments of the steel sheet pile cofferdam wall body of the present invention 1;
fig. 9 is a schematic view of the connection between the capping channel steel and the edge sealing channel steel of some embodiments of the steel sheet pile cofferdam wall body of the present invention 2;
FIG. 10 is an enlarged view of a portion of region E of FIG. 1;
fig. 11 is a schematic view of the connection assembly shown in fig. 10 from another angle.
In the drawing, 1, a wall unit, 1A, a first pattern of the wall unit, 1B, a second pattern of the wall unit, 11, a wall group, 111 steel sheet piles, 1111, a pile body, 1112, a locking notch, 12, a single-side locking unit, 121, an edge sealing channel steel, 122, a locking steel pipe, 1221, an opening, 123, a water stop connecting plate, 124, a reinforcing plate, 125, a steel pipe stiffening plate, 2, I-steel, 3, a top sealing channel steel, 4, a bottom sealing steel plate, 5, a transverse connecting rod, 51, an outer purlin, 52, a flat iron, 6, a waterproof filler, 7, a connecting assembly, 71, a base, 72, a pull rod support, 721, a through hole, 73, a counter-pulling screw assembly, 74, a support block and 8 steel panels are shown.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description, in conjunction with the examples and the accompanying drawings, is intended to illustrate the present invention in further detail, and the exemplary embodiments and the description thereof are only used for explaining the present invention, and are not intended to limit the present invention.
The utility model provides a steel sheet pile cofferdam wall body, this steel sheet pile cofferdam wall body can be applied to bridge foundation construction in, constitute by a plurality of wall body units 1, connect through cartridge I-steel 2 between two adjacent wall body units 1, and each wall body unit 1 connects gradually through this mode, can enclose into confined cofferdam wall body. The utility model discloses in, can realize connecting through I-steel 2 between wall body unit 1, the cofferdam wall body of being convenient for assemble and demolish, overcome and connected through the welding mode among the prior art, produce welding deformation's defect easily to, the accessible adopts the wall body unit 1 of different length or adopts the wall body unit 1 combination of different quantity to enclose into not unidimensional cofferdam wall body, but each wall body unit 1 reuse after the cofferdam wall body is demolishd has enough to meet the need the rate of utilization height.
Wherein, the wall unit 1 is formed by connecting a plurality of steel sheet piles 111 in sequence, as shown in fig. 2, the steel sheet pile 111 includes a pile 1111 and locking notches 1112 arranged at two ends of the pile 1111, adjacent steel sheet piles 111 can be engaged with each other through the locking notches 1112 or connected through a welding mode, and the engagement positions of the locking notches 1112 of the steel sheet piles 111 can rotate by a certain angle, therefore, the wall units 1 of different shapes can be formed by connecting a plurality of steel sheet piles 111, thereby the circular, round-ended or rectangular cofferdam wall body is enclosed by a plurality of wall units 1.
Fig. 1 shows an embodiment of a steel sheet pile cofferdam wall body of the present invention, the steel sheet pile cofferdam wall body includes a plurality of wall units 1, the wall units 1 include a wall group 11 composed of a plurality of steel sheet piles 111 connected in sequence, and single-side locking units 12 disposed at two ends of the wall group 11, the single-side locking units 12 are provided with openings 1221 facing outward; the wall units 1 are sequentially arranged, and the I-shaped steel 2 is inserted through the openings 1221 on the two adjacent single-side locking units 12 to form locking buckles to connect the two adjacent wall units 1, so that the wall units 1 are sequentially connected to form a closed cofferdam wall body.
The cofferdam wall body is formed by a plurality of wall units 1, wherein, the wall units 1 can include the same type or different types of wall units 1, in the embodiment, the wall unit 1 includes a first type of wall unit 1A and a second type of wall unit 1B, and the rectangular cofferdam wall body is formed by combining the first type of wall unit 1A and the second type of wall unit 1B.
A second pattern of wall units 1B is shown in fig. 4, which are L-shaped structures for being arranged at the corners of the cofferdam wall to configure the cofferdam wall in a rectangular shape. The first pattern of wall units 1A is shown in fig. 3, and the wall units are in a straight line structure for connecting between the second pattern of wall units 1B to increase the length or width of the cofferdam wall. It can be understood that, according to the actual requirement for the size of the cofferdam wall, the cofferdam wall with different sizes can be enclosed by combining and connecting different numbers of the wall units 1A of the first pattern and the four wall units 1B of the second pattern.
In order to make the second wall unit 1B have an L-shaped structure, in this embodiment, the second wall unit 1B includes a first steel sheet pile group and a second steel sheet pile group, wherein the first steel sheet pile group and the second steel sheet pile group are vertically connected to form a corner of the wall unit 1. Specifically, as shown in fig. 5, at the joint of the first steel sheet pile group and the second steel sheet pile group, two adjacent steel sheet piles 111 are welded to each other, so that the first steel sheet pile group and the second steel sheet pile form a vertical angle, and the wall unit 1B of the second pattern is an L-shaped structure.
In the first steel sheet pile group, the second steel sheet pile group and the first wall unit 1A in the second wall unit 1B, adjacent steel sheet piles 111 are engaged with each other through locking notches 1112, so as to facilitate installation and removal of each steel sheet pile 111 in the wall unit 11. It will be appreciated that wall units 1 of different lengths may be connected by different numbers of steel sheet piles 111 to meet the requirements for cofferdam walls of different sizes. The steel sheet pile 111 may be PU400 × 170, L12000 mm, such as a larsen type IV steel sheet pile.
In order to enhance the transverse connection strength of each steel sheet pile 111 in the wall body group 11, as shown in fig. 3, 4 and 6, a top-sealed channel steel 3 and a bottom-sealed steel plate 4 adapted to the widths of the wall body group 11 are respectively arranged at the top and the bottom. Specifically, the groove of the capping channel steel 3 faces the top of the wall group 11 and is sleeved on the top of the wall group 11, so that relative displacement between the steel sheet piles 111 in the wall group 11 is limited at the top position, and an effect of enhancing the transverse connection strength of each steel sheet pile 111 in the wall group 11 at the top position of the wall group 11 is achieved. Similarly, the back cover steel plate 4 is disposed at the bottom of the wall group 11, so that the bottom positions of the steel sheet piles 111 in the wall group 11 are aligned and connected to the back cover steel plate 4, respectively, thereby achieving the effect of strengthening the transverse connection of the steel sheet piles 111 in the wall group 11 at the bottom position of the wall group 11. Wherein, the channel-section steel of 40b type specification can be selected for use to the back cover channel-section steel, and the steel sheet of delta 20mm specification can be selected for use to the back cover steel sheet, can understand ground, and the both ends at wall body group 11 are connected with 4 accessible welded modes of back cover channel-section steel 3 and back cover steel sheet.
Further, a plurality of transverse connecting rods 5 are respectively arranged on the outer side and the inner side of the wall body group 11 in the longitudinal direction so as to respectively strengthen the transverse connecting strength of each steel sheet pile 111 in the wall body group 11 at different height positions. Specifically, the transverse connecting rod 5 includes a peripheral purlin 51 disposed at a middle-upper position outside the wall body group 11, and a flat iron 52 disposed below the peripheral purlin 51 and inside the wall body group 11, wherein the peripheral purlin 51 and the flat iron 52 are disposed at intervals in a longitudinal direction, and preferably, the flat irons 52 on the inner side and the outer side of the wall body group 11 can be symmetrically disposed and reinforce the connection strength of the i-steel 2 and the wall body group 11 through a stiffening plate.
The peripheral purlin 51 can be made of h-shaped steel with specification of 32b and specification of 7688mm, the flat iron can be made of 30 × 5, and specification of 2846 and 5245mm, and the peripheral purlin 51 and the flat iron 52 can be arranged on the wall body group 11 in a welding mode. In this embodiment, the transverse connection strength of the steel sheet piles 111 in the wall group 11 is reinforced at different height positions in a form of the outer purlin 51 serving as a main part and the flat iron 52 serving as an auxiliary part. Wherein, the middle lower part position of the inner side of the wall body group 11 can be provided with a steel panel 8 as a template for casting concrete of a bearing platform, the steel panel 8 can be a steel plate with the diameter of delta 6mm and made of Q235-b steel, and the steel panel 8 and the wall body group 11 are fixed through spot welding.
In this embodiment, the two ends of the wall assembly 11 are provided with the single-side locking units 12, the single-side locking units 12 are provided with openings 1221 facing outward, and the adjacent wall units 1 are inserted with the i-beams 2 through the openings 1221 of the single-side locking units 12 to form locking locks to realize connection.
As shown in fig. 7, the one-side locking unit 12 includes an edge-sealing channel 121 and at least one locking steel pipe 122. Specifically, banding channel-section steel 121 inlay locate the back cover channel-section steel 3 with between the back cover steel sheet 4, and respectively with the back cover channel-section steel 3 back cover steel sheet 4 looks butt, the recess of banding channel-section steel 121 is towards wall body group 11, and the tip of banding channel-section steel 121 and the pile body 1111 looks butt of the steel sheet pile 111 of 11 tip of wall body group. In this embodiment, the wall body group 11 is connected to the edge banding channel steel 121, and the lock steel pipe 122 is connected to the edge banding channel steel 121, so that the connection strength between the wall body group 11 and the lock steel pipe 122 is enhanced.
The leg on the first side of the edge banding channel steel 121 is abutted to the pile body 1111 of the steel sheet pile 111 through the end of the edge banding channel steel, and the leg on the second side is suspended. To enhance the strength of the connection between the channel 121 and the wall 11, in some embodiments, as shown in fig. 8, the capping channel 3 is nested on the capping channel 121, and the leg on the second side of the capping channel 121 is connected to the inner wall of the leg of the bottom-sealing channel through the outer wall thereof. In some embodiments, as shown in fig. 9, the legs on the second side of the edge channel 121 are flush with and attached to the legs of the back cover channel. Thereby the shank through banding channel-section steel 121 first side is connected with the pile body 1111 of the steel sheet pile 111 of wall body group 11 tip, and the shank of banding channel-section steel 121 second side is connected with the shank of capping channel-section steel 3, and banding channel-section steel 121 is connected with wall body group 11 through its both ends promptly. The edge sealing channel steel 121 can be 36 b-shaped, L is 12025mm in specification, and the capping channel steel 3 can be 40 b-shaped.
Further, in order to enhance the connection strength between the edge-sealing channel steel 121 and the wall body group 11, the one-side locking unit 12 further includes a water-stopping connection plate 123. Specifically, the water stop connecting plate 123 is disposed on the back side of the locking notch 1112 of the steel sheet pile 111 at the end of the wall group 11 and extends toward the edge banding channel 121 to be connected to the edge banding channel 121, so that the connection between the edge banding channel 121 and the wall group 11 is strengthened at the middle position of the edge banding channel 121. And the two ends of the water stop connecting plate 123 are respectively abutted against the top sealing channel steel 3 and the bottom sealing steel plate 4, so that the sealing property between the wall body group 11 and the edge sealing channel steel 121 is enhanced, and the water stop function is realized.
Further, in order to enhance the connection strength between the wall body group 11 and the edge-sealing channel 121 and the water-stop connecting plate 123, the one-side locking unit 12 further includes a reinforcing plate 124. Specifically, the reinforcing plate 124 is disposed between the wall group 11, the water stop connecting plate 123 and the edge banding channel 121, and is connected to the steel sheet pile 111, the water stop connecting plate 123 and the edge banding channel 121 at the end of the wall group 11, preferably, the reinforcing plate 124 is disposed at the back side of the locking notch 1112 of the steel sheet pile 111 at the end of the wall group 11, and the shape of the reinforcing plate 124 is adapted to the components connected thereto, so as to facilitate the connection between the components and enhance the connection strength between the components. Wherein, the stagnant water connecting plate 123 can select delta 6mm specification for use, and reinforcing plate 124 can select delta 10mm specification.
In the present embodiment, the latch steel pipe 122 is disposed on the back side of the seal channel 121, and the opening 1221 is disposed on the latch steel pipe 122. Preferably, the number of the locking steel tubes 122 is two, the locking steel tubes are arranged at two ends of the back side of the edge banding channel steel 121, a through opening 1221 is arranged on one side of the locking steel tube 122 opposite to the edge banding channel steel 121, and the through opening 1221 is matched with the waist width of the i-steel 2, so that the i-steel 2 can be conveniently inserted and removed. Wherein, the hasp steel pipe 122 can select phi 108 × 8, and L12025 mm specification, I-steel 2 can select the recruitment 12.6, and L12025 mm specification.
Further, in order to enhance the rigidity and strength of the lock steel pipes 122 at the two ends of the edge banding channel 121, a steel pipe stiffening plate 125 is disposed at the back side of the edge banding channel 121, one end of the steel pipe stiffening plate 125 is connected to the edge banding channel 121, the other end extends toward the lock steel pipe 122 and abuts against the two lock steel pipes 122, and the steel pipe stiffening plate 125 supports the lock steel pipes 122 to enhance the rigidity and strength of the two lock steel pipes 122 themselves. Wherein, the lock catch stiffening plate adopts delta 10mm specification.
In this embodiment, the steel sheet pile 111, the edge banding channel steel 121, the water stop connecting plate 123, the lock catch steel pipe 122 and the i-shaped steel 2 are of an integral continuous structure in the longitudinal direction, the heights of the components are the same or close to each other, the lock catch is formed to play a role in water retaining, and the reinforcing plate 124 and the lock catch stiffening plate are arranged at intervals in the longitudinal direction to play a role in reinforcing connection and save materials.
After the wall units 1 are sequentially arranged and closed, the adjacent wall units 1 are connected by inserting the same i-steel 2, wherein after the lock steel pipes 122 at the two ends of the adjacent wall units 1 are inserted into the i-steel 2, the edge sealing channel 121 and the locks at the two ends of the edge sealing channel 121 enclose a space, and the space can be filled with the waterproof filler 6 to achieve the water plugging effect, wherein the waterproof filler 6 can be a mixture of tamped clay and cotton wool.
The adjacent wall units 1 are connected through the inserted I-steel 2, in order to enable the wall units 1 to be integrated, in this embodiment, the connecting assembly 7 is arranged on the peripheral purlin 51 of each wall unit 1, and the connecting assemblies 7 on the peripheral purlins 51 of the adjacent wall units 1 are connected through the inserted opposite-pulling screw rods and the installation screw rod assemblies.
As shown in fig. 10 and 11, the connecting assembly 7 includes a base 71, a tie rod support 72 and support blocks 74, wherein the tie rod support 72 has a through hole 721 for inserting the tie rod, the tie rod support 72 is vertically connected to the base 71, and two sides of the tie rod support are supported and fixed by the support blocks 74 connected to the tie rod support 72 and the base 71.
In this embodiment, the components in the connecting assembly 7 are connected into a whole by the base 71 and are provided for being mounted on the peripheral purlin 51, and after the adjacent wall units 1 are folded and connected by the i-beams 2, the connecting assembly 7 on the peripheral purlin 51 of the adjacent wall unit 1 is connected and fixed by the opposite-pulling screw assembly 73. The wall units 1 are connected into a whole by the sequential connection of the peripheral purlins 51 on the wall units 1, thereby enclosing a closed cofferdam wall body whole. Wherein, the base 71 can be 200 × 100 × 20 specification, the pull rod support 72 can be 150 × 100 × 20 specification, the supporting block 74 can be δ 10mm specification, the counter screw can be Φ 25 specification, and the through hole 721 can be phi 50 specification.
In the utility model, the steel sheet piles are connected in sequence to form a wall body group, the unilateral locking units are arranged at the two ends of the wall body group to form wall body units, and the wall body units are connected through the inserted I-steel, so that the assembly and the disassembly of the cofferdam wall body are convenient, and the welding deformation phenomenon is effectively avoided; after the cofferdam wall bodies are used in a single project, the cofferdams with different sizes can be formed by splicing different numbers of wall body units, and the subsequent turnover utilization rate is high.
It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. A steel sheet pile cofferdam wall, characterized by, includes:
the wall body units (1) comprise wall body groups (11) formed by a plurality of steel sheet piles (111) which are sequentially connected and single-side lock catch units (12) arranged at two ends of the wall body groups (11), and the single-side lock catch units (12) are provided with openings (1221) facing outwards;
the wall units (1) are sequentially arranged, I-shaped steel (2) is inserted into the openings (1221) of the two adjacent single-side locking units (12) to form locking buckles to connect the two adjacent wall units (1), and the wall units (1) are sequentially connected to form a closed cofferdam wall body.
2. The steel sheet pile cofferdam wall of claim 1, characterized in that:
the cofferdam wall body is rectangular, the wall body group (11) arranged at the corner position of the cofferdam wall body is of a right-angle structure, and two adjacent steel sheet piles (111) arranged at the corner position of the wall body group (11) are welded and connected; the adjacent steel sheet piles (111) at other positions are mutually meshed and connected through locking notches (1112).
3. The steel sheet pile cofferdam wall of claim 2, characterized in that:
and the top and the bottom of the wall body group (11) are respectively provided with a capping channel steel (3) and a bottom sealing steel plate (4) which are matched with the width of the wall body group, so that the transverse connection strength of each steel plate pile (111) in the wall body group (11) is enhanced at the top position and the bottom position respectively.
4. The steel sheet pile cofferdam wall of claim 2, characterized in that:
the outer side and the inner side of the wall body group (11) are respectively provided with a plurality of transverse connecting rods (5) in the longitudinal direction so as to respectively strengthen the transverse connecting strength of each steel sheet pile (111) in the wall body group (11) at different heights.
5. The steel sheet pile cofferdam wall of claim 3, characterized in that:
the single-side locking unit (12) comprises an edge sealing channel steel (121) and at least one locking steel pipe (122);
the edge sealing channel steel (121) is embedded between the top sealing channel steel (3) and the bottom sealing steel plate (4) and is respectively abutted against the top sealing channel steel (3) and the bottom sealing steel plate (4), wherein a groove of the edge sealing channel steel (121) faces the wall body group (11), and the end part of the edge sealing channel steel (121) is abutted against a pile body (1111) of a steel plate pile (111) at the end part of the wall body group (11);
the lock catch steel pipe (122) is arranged on the back side of the edge sealing channel steel (121), and the opening (1221) is arranged on the lock catch steel pipe (122).
6. The steel sheet pile cofferdam wall of claim 5, characterized in that:
the single-side locking unit (12) further comprises a water stop connecting plate (123) and a reinforcing plate (124);
the water stop connecting plate (123) is arranged on the back side of a locking port (1112) of the steel sheet pile (111) at the end part of the wall body group (11) and extends towards the edge sealing channel steel (121) to be connected with the edge sealing channel steel (121), and the water stop connecting plate (123) is respectively abutted to the top sealing channel steel (3) and the bottom sealing steel plate (4);
the reinforcing plate (124) is connected with the steel sheet pile (111) at the end part of the wall body group (11), the water stop connecting plate (123) and the edge sealing channel steel (121) at the same time so as to reinforce the connection strength among the three.
7. The steel sheet pile cofferdam wall of claim 5, characterized in that:
the number of hasp steel pipes (122) is two, and locates respectively the both ends of banding channel-section steel (121), banding channel-section steel (121) dorsal part is equipped with to hasp steel pipe (122) direction extension, and with two steel pipe stiffening plate (125) that hasp steel pipe (122) looks butt is in order to strengthen two the rigidity and the intensity of hasp steel pipe (122).
8. The steel sheet pile cofferdam wall of claim 7, characterized in that:
after the two adjacent wall body units (1) are inserted with the I-shaped steel (2), the edge sealing channel steel (121) and the lock catches at the two ends of the edge sealing channel steel (121) enclose a space, and the space is filled with a waterproof filler (6).
9. The steel sheet pile cofferdam wall of claim 4, characterized in that:
horizontal connecting rod (5) are including setting up peripheral purlin (51) of the well upper portion position in wall body group (11) outside, be equipped with coupling assembling (7) on the peripheral purlin, coupling assembling (7) include:
a base (71) for mounting the connection assembly (7) on the peripheral purlin (51);
the pull rod support (72) is vertically connected with the base (71), and the pull rod support (72) is provided with a through hole (721) for inserting the counter-pull screw rod; and the number of the first and second groups,
the supporting blocks (74) are arranged on two sides of the pull rod support (72), are simultaneously connected with the base (71) and the pull rod support (72), and support and fix the pull rod support (72) on the base (71);
wherein the connecting assemblies (7) on the peripheral purlins (51) of adjacent wall units (1) are connected and fixed by a split screw assembly (73).
10. The steel sheet pile cofferdam wall of claim 1, characterized in that:
the steel sheet pile (111) comprises a Larsen steel sheet pile.
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| CN202020454387.9U CN212375889U (en) | 2020-03-31 | 2020-03-31 | Steel sheet pile cofferdam wall body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116290005A (en) * | 2023-05-15 | 2023-06-23 | 山东省路桥集团有限公司 | Highway bridge construction cofferdam device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116290005A (en) * | 2023-05-15 | 2023-06-23 | 山东省路桥集团有限公司 | Highway bridge construction cofferdam device |
| CN116290005B (en) * | 2023-05-15 | 2023-07-14 | 山东省路桥集团有限公司 | Highway bridge construction cofferdam device |
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