CN213204176U - Cofferdam structure used in soft foundation treatment of sediment treatment plant - Google Patents
Cofferdam structure used in soft foundation treatment of sediment treatment plant Download PDFInfo
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- CN213204176U CN213204176U CN202021936081.3U CN202021936081U CN213204176U CN 213204176 U CN213204176 U CN 213204176U CN 202021936081 U CN202021936081 U CN 202021936081U CN 213204176 U CN213204176 U CN 213204176U
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Abstract
The utility model provides a cofferdam structure that sediment processing factory used in soft foundation treatment, including Larsen steel sheet pile, S-shaped firmware, supporting steel plate, I-steel, connect through the mutual interlock of fore shaft of Larsen steel sheet pile and form square cofferdam, the four sides in cofferdam are closed through S-shaped firmware locking, and the cofferdam is inside to be consolidated by supporting steel plate and I-steel cooperation. The design of this structure has solved the yielding of the inseparable production of closure between the cofferdam both sides of constituteing by the Larsen steel sheet pile, the problem of easy infiltration, has guaranteed the efficiency of construction.
Description
Technical Field
The utility model relates to a cofferdam technical field specifically relates to a larsen steel sheet pile cofferdam.
Background
The Larsen steel sheet pile is also called a U-shaped steel sheet pile and is used as a novel building material for serving as a soil retaining wall, a water retaining wall and a sand retaining wall when a bridge cofferdam is built, a large pipeline is laid and a temporary ditch is excavated; the method plays an important role in engineering, and is used as a retaining wall, an embankment revetment and the like in wharfs and unloading yards. The Larsen steel sheet pile cofferdam is green and environment-friendly, has high construction speed and low construction cost, and has a good waterproof function.
In the process of soft foundation treatment, a closed or semi-closed space for preventing water seepage is established through Larsen steel sheet piles, and the locking notch of the conventional Larsen steel sheet pile cannot be completely sealed and closed under certain conditions such as the corners of a square cofferdam, so that the cofferdam cannot ensure the functions of good stability, shock absorption and water seepage prevention.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem be, the corner that the closed cofferdam that forms through the connection of larsen steel sheet pile used in soft base is connected is not inseparable, leads to the unstable problem that easily seeps of cofferdam.
The technical scheme of the utility model is that: a cofferdam structure for use in soft foundation treatment in a sludge treatment plant, comprising:
the first locking notches at the two ends of the Larsen steel plate pile are mutually occluded and connected to form a cofferdam wall, the cross section of the Larsen steel plate pile is isosceles trapezoid,
the second locking notches at the two ends of the S-shaped fixing piece are mutually meshed and connected with the first locking notches of the two adjacent Larsen steel sheet piles to form a cofferdam angle, the S-shaped fixing piece is made of stainless steel,
two first C-shaped frames are fixedly arranged along the horizontal direction of the inner sides of the two concave surfaces of the S-shaped fixing piece and used for resisting transverse pressure, first sliding clamping blocks which are matched with each other are arranged in the first C-shaped frames, the inner sides of the first sliding clamping blocks are fixedly connected with the inner walls of the first C-shaped frames through first damping springs, a first supporting steel plate is hinged between the two first C-shaped frames through respective first sliding clamping blocks,
a second C-shaped frame positioned between the first supporting steel plate and the concave surface of the S-shaped fixing piece and used for resisting longitudinal pressure, a second sliding clamping block matched with the second C-shaped frame is arranged in the second C-shaped frame, the inner side of the second sliding clamping block is fixedly connected with the inner wall of the second C-shaped frame through a second damping spring, two second supporting steel plates are hinged and installed at the outer side of the second sliding clamping block, the second supporting steel plates are fixedly connected with the concave surface of the S-shaped fixing piece through a connecting piece,
and a circle of supporting steel plates are positioned at the upper part of the inner side of the cofferdam.
Furthermore, the S-shaped fixing pieces are rigid structures, so that the stability of the corner positions of the cofferdam is improved.
Furthermore, the supporting steel plates comprise transverse supporting steel plates and longitudinal supporting steel plates, and two parallel I-shaped steels are arranged between the parallel supporting steel plates.
Furthermore, an inclined supporting steel plate is fixedly connected between the transverse supporting steel plate and the longitudinal supporting steel plate, so that the stability inside the cofferdam is enhanced.
Preferably, between supporting steel plate and the supporting steel plate, between supporting steel plate and the I-steel, between supporting steel plate and the Larsen steel sheet pile, through welded fastening connection, welding equipment is simple, and is respond well.
Further preferably, the gaps formed by the mutual occlusion of the first locking notches of the two Larsen steel plate piles and the gaps formed by the mutual occlusion of the first locking notches of the Larsen steel plate piles and the second locking notches of the S-shaped fixing pieces are filled with common pouring materials such as concrete, so that the water leakage of the cofferdam is further prevented, and the waterproofness of the cofferdam is improved.
The utility model has the advantages that:
1. the utility model discloses the second fore shaft through S-shaped firmware at the edge is blockaded the connection to both sides, has increased the steadiness of sealing the cofferdam in the use.
2. The utility model discloses a supporting steel plate that two depressed parts of S-shaped firmware all were equipped with and the damping spring of direction with great ease, increased the resistance to compression and the shock-absorbing capacity of S-shaped firmware, poured the mode of packing between the hasp and increased the impervious ability of sealing the cofferdam.
Drawings
FIG. 1 is an overall structure of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is an enlarged schematic view at A in FIG. 2;
FIG. 4 is a schematic diagram of an S-shaped firmware structure;
the steel plate pile comprises 1-Larsen steel plate piles, 11-first locking notches, 2-S-shaped fixing pieces, 21-second locking notches, 22-first C-shaped frames, 221-first sliding fixture blocks, 222-first damping springs, 23-second C-shaped frames, 231-second sliding fixture blocks, 232-second damping springs, 24-second supporting steel plates, 25-first supporting steel plates, 26-connecting pieces, 3-supporting steel plates, 31-longitudinal supporting steel plates, 32-transverse supporting steel plates, 33-oblique supporting steel plates, 4-I-shaped steel, 5-cofferdams, 51-cofferdam walls and 52-cofferdam corners.
Detailed Description
As shown in fig. 1 to 3, a cofferdam structure for use in soft foundation treatment in a sludge treatment plant includes:
the cofferdam wall 51 is formed by mutually engaging and connecting the first locking ports 11 at the two ends of the Larsen steel plate pile 1, the cross section of the Larsen steel plate pile 1 is isosceles trapezoid, the model of the Larsen steel plate pile 1 is Larsen FSP-IV type,
the cofferdam angle 52 is formed by mutually engaging and connecting the second locking notch 21 at the two ends of the S-shaped fixing piece 2 and the first locking notch 11 of the two adjacent Larsen steel sheet piles 1, the S-shaped fixing piece is made of stainless steel,
a circle of supporting steel plates 3 positioned at the upper part of the inner side of the cofferdam 5, the supporting steel plates 3 comprise two transverse supporting steel plates 32 and two longitudinal supporting steel plates 31, an inclined supporting steel plate 33 is fixedly connected between the transverse supporting steel plates 32 and the longitudinal supporting steel plates 31, two parallel I-shaped steels 4 are arranged between the parallel longitudinal supporting steel plates 31, the stability of the inner part of the cofferdam 5 is enhanced, the supporting steel plates 3 and the supporting steel plates 3, the supporting steel plates 3 and the I-shaped steels 4, and the supporting steel plates 3 and the Larsen steel sheet piles 1 are fixedly connected by welding, the welding equipment is simple, the effect is good,
as shown in fig. 4, two first C-shaped frames 22 are fixedly installed along the horizontal direction of the inner sides of two concave surfaces of the S-shaped fixing member 2 for resisting the lateral pressure, a first sliding block 221 matched with the first C-shaped frame 22 is installed in each first C-shaped frame 22, the inner side of each first sliding block 221 is fixedly connected with the inner wall of the first C-shaped frame 22 through a first damping spring 222, a first supporting steel plate 25 is hinged between the two first C-shaped frames 22 through a respective first sliding block 221, a second C-shaped frame 23 located between the first supporting steel plate 25 and the concave surface of the S-shaped fixing member 2 for resisting the longitudinal pressure, a second sliding block 231 matched with the second C-shaped frame 23 is installed in each second C-shaped frame 23, the inner side of the second sliding block 231 is fixedly connected with the inner wall of the second C-shaped frame 23 through a second damping spring 232, two second supporting steel plates 24 are hinged on the outer side of the second sliding block 231, and the second supporting steel plates 24 is fixedly connected with the concave surface of, the gaps formed by the mutual occlusion of the first locking notches 11 of the two Larsen steel plate piles 1 and the gaps formed by the mutual occlusion of the first locking notches 11 of the Larsen steel plate piles 1 and the second locking notches 22 of the S-shaped fixing pieces 2 are filled with common filling materials such as concrete, so that the water leakage of the cofferdam 5 is further prevented, and the waterproofness of the cofferdam 5 is improved.
The utility model discloses a work progress does:
firstly, driving a Larsen steel plate pile 1 and an S-shaped fixing piece 2 according to the requirements of a construction drawing, and under the condition of meeting the construction requirement specification of the Larsen steel plate pile 1, performing groove excavation within the range of a foundation pit inside a cofferdam 5 formed by the Larsen steel plate pile 1, wherein the ground penetration depth of the Larsen steel plate pile 1 is not less than one third of the excavation depth;
then, welding and fixing two transverse supporting steel plates 32 and two longitudinal supporting steel plates 31 along the inner wall of the cofferdam 5 at a fifth distance from the top of the Larsen steel plate pile 1, and welding two parallel I-shaped steels 4 between the two longitudinal supporting steel plates 31 after the two transverse supporting steel plates and the two longitudinal supporting steel plates 31 are fixed;
finally, a common pouring material, such as concrete, is poured into a gap between the Larsen steel sheet pile 1 and the first locking notch 11 of the Larsen steel sheet pile 1 and a gap between the locking notch 11 of the Larsen steel sheet pile 1 and the locking notch 22 of the S-shaped fixing part 2.
Claims (6)
1. A cofferdam structure for use in soft foundation treatment in a sludge treatment plant, comprising:
the cofferdam wall (51) is formed by mutually engaging and connecting the first locking notches (11) at the two ends of the Larsen steel sheet pile (1),
the cofferdam angle (52) is formed by mutually engaging and connecting the second locking notches (21) at the two ends of the S-shaped fixing piece (2) with the first locking notches (11) of two adjacent Larsen steel sheet piles (1),
two first C-shaped frames (22) are fixedly installed along the horizontal direction of the inner sides of two concave surfaces of the S-shaped fixing piece (2) and used for resisting transverse pressure, first sliding fixture blocks (221) which are matched with each other are arranged in the first C-shaped frames (22), the inner sides of the first sliding fixture blocks (221) are fixedly connected with the inner walls of the first C-shaped frames (22) through first damping springs (222), first supporting steel plates (25) are hinged between the two first C-shaped frames (22) through respective first sliding fixture blocks (221),
a second C-shaped frame (23) positioned between the first supporting steel plate (25) and the concave surface of the S-shaped fixing piece (2) and used for resisting longitudinal pressure, a matched second sliding clamping block (231) is arranged in the second C-shaped frame (23), the inner side of the second sliding clamping block (231) is fixedly connected with the inner wall of the second C-shaped frame (23) through a second damping spring (232), two second supporting steel plates (24) are hinged and installed on the outer side of the second sliding clamping block (231), and the second supporting steel plates (24) are fixedly connected with the concave surface of the S-shaped fixing piece (2) through connecting pieces (26),
a circle of supporting steel plates (3) positioned at the upper part of the inner side of the cofferdam (5).
2. Cofferdam structure for use in soft foundation treatment at a bottom sludge treatment plant according to claim 1, characterized in that said S-shaped firmware (2) is a rigid structure.
3. Cofferdam structure for use in soft foundation treatment at a bottom sludge treatment plant according to claim 1, characterized in that said supporting steel plates (3) comprise a transverse supporting steel plate (32) and a longitudinal supporting steel plate (31), between which parallel supporting steel plates (3) there are two parallel i-beams (4).
4. Cofferdam structure for use in soft foundation treatment at a bottom sludge treatment plant according to claim 3, characterized in that between said transversal (32) and longitudinal (31) supporting steel plates there are fixedly connected diagonal supporting steel plates (33).
5. The cofferdam structure of claim 4, wherein the supporting steel plates (3) and (3), the supporting steel plates (3) and (4), and the supporting steel plates (3) and the Larsen steel sheet piles (1) are all fixedly connected by welding.
6. The cofferdam structure for use in soft foundation treatment of a sediment treatment plant according to claim 1, wherein the gap where the first locking notch (11) of two Larsen steel sheet piles (1) are connected to each other is filled with a filling material, and the gap where the first locking notch (11) of the Larsen steel sheet pile (1) is engaged with the second locking notch (21) of the S-shaped fastener (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021936081.3U CN213204176U (en) | 2020-09-07 | 2020-09-07 | Cofferdam structure used in soft foundation treatment of sediment treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021936081.3U CN213204176U (en) | 2020-09-07 | 2020-09-07 | Cofferdam structure used in soft foundation treatment of sediment treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213204176U true CN213204176U (en) | 2021-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021936081.3U Active CN213204176U (en) | 2020-09-07 | 2020-09-07 | Cofferdam structure used in soft foundation treatment of sediment treatment plant |
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| Country | Link |
|---|---|
| CN (1) | CN213204176U (en) |
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2020
- 2020-09-07 CN CN202021936081.3U patent/CN213204176U/en active Active
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