CN113914345B - Anti-series water seal blocking plate for water inlet window of large caisson partition wall and blocking process thereof - Google Patents
Anti-series water seal blocking plate for water inlet window of large caisson partition wall and blocking process thereof Download PDFInfo
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- CN113914345B CN113914345B CN202111450395.1A CN202111450395A CN113914345B CN 113914345 B CN113914345 B CN 113914345B CN 202111450395 A CN202111450395 A CN 202111450395A CN 113914345 B CN113914345 B CN 113914345B
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- E—FIXED CONSTRUCTIONS
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- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
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- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
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Abstract
A large caisson partition wall water inlet window anti-series water seal blocking plate and a blocking process thereof relate to the technical field of water transportation engineering, in particular to a large caisson partition wall water inlet window anti-series water seal blocking plate. The large-scale caisson partition wall water inlet window is characterized in that the large-scale caisson partition wall water inlet window is matched with a large-scale caisson partition wall water inlet window, fasteners are arranged on the periphery of the large-scale caisson partition wall, connecting panels are arranged at two ends of the outer side of the large-scale caisson partition wall, and a main panel is arranged on the inner side of the large-scale caisson partition wall water inlet window; panel supports are arranged on the outer sides of the periphery of the main panel; the connecting panels are arranged at two ends of the panel support, and a plurality of trusses which are parallel to each other are arranged between the connecting panels; the middle of each truss is provided with an enclosing wall, and a plurality of mutually parallel face ribs are arranged between each two trusses. The invention has the advantages of increasing the bearing capacity of the plugging plate, solving the problems of large installation deviation of the embedded round table and improving the construction efficiency.
Description
Technical Field
The invention relates to the technical field of water transportation engineering, in particular to a large-scale caisson partition wall water inlet window anti-series water seal blocking plate and a blocking process thereof.
Background
At present, the traditional water intake caisson is a small water inlet window, but because the power plant expands in scale, a 600MW unit water intake is adopted, and the total net area of the water intake of the caisson is required to be not less than 112m 2 I.e. the size of the water inlet window is not less than 4m. The front wall of the caisson is provided with two layers of large water inlet windows, the rear wall is provided with a water diversion pipe faucet, and the rear side of the caisson is connected with a water taking pipe culvert. In order to ensure stable flow velocity of water, the caisson partition wall is also provided with a large water inlet window. In the process of the caisson going out, all the subareas are not connected with each other, otherwise, risks such as eccentricity, overturning and the like caused by water stringing in the water injection process can occur.
The existing caisson water inlet window is plugged by adopting an installation process of welding an embedded round table on a main panel, and is mainly suitable for small-sized water inlet windows, but the existing caisson water inlet window has the defects that the bearing capacity is poor, the straightness of the embedded round table is reduced along with the increase of the height, the construction difficulty is increased and the like.
Disclosure of Invention
The invention aims to provide a large-scale caisson partition wall water inlet window anti-series water seal blocking plate and a blocking process thereof, so as to achieve the purposes of increasing the bearing capacity of the blocking plate and solving the problem of large installation deviation of an embedded round platform.
The invention provides a large caisson partition wall water inlet window anti-series water seal blocking plate, which comprises a blocking plate body and is characterized in that the blocking plate body is matched with the large caisson partition wall water inlet window, fasteners are arranged on the periphery of the blocking plate body, connecting panels are arranged at two ends of the outer side of the blocking plate body, and a main panel is arranged at the inner side of the blocking plate body; panel supports are arranged on the outer sides of the periphery of the main panel; the connecting panels are arranged at two ends of the panel support, and a plurality of trusses which are parallel to each other are arranged between the connecting panels; the middle of each truss is provided with a wail, and a plurality of mutually parallel surface ribs are arranged between each two trusses; the inner side of the face rib is connected with the main panel, and the two ends of the outer side of the face rib are connected with the truss.
Furthermore, the enclosing wall is formed by welding 3 double-spliced groove steel in parallel, and the enclosing wall is connected with the truss and the face rib.
Further, a water stop strip is arranged on the outer side of the panel support; the upper end of the connecting panel is provided with a hanging nose.
Further, the plugging plate body and the caisson wall body are in limit connection through the fastening piece and the template.
Further, the fastener includes brace and nut, and the one end of brace is fixed on the main panel, and the other end of brace is fixed on the template is spacing by the nut, is provided with the backing plate between brace and the nut.
Further, the template limit comprises a vertical template limit and a horizontal template limit, wherein the vertical template limit is arranged at two sides of the caisson wall, and the horizontal template limit is arranged at two ends of the caisson wall; the vertical templates are limited at the upper end and the lower end of the caisson wall body and extend out by 20cm respectively, the upper ends of the vertical templates are horizontally arranged at the top ends of the horizontal templates, and the lower ends of the vertical templates are horizontally arranged at the bottom ends of the horizontal templates; the fastener is fixed in the vertical template limit and the horizontal template limit.
The invention provides a plugging process of a large-scale caisson partition water inlet window anti-series water seal plugging plate, which is characterized by comprising the following steps of:
step 1, manufacturing a plugging plate body according to the size of a water inlet window of a large caisson partition wall, and determining the number of fasteners through shear strength checking calculation;
step 2, after the manufacturing of the plugging plate body is completed and the plugging plate body is inspected to be qualified, hanging the plugging plate body on a caisson wall after hoisting;
step 4, after the installation of the plugging plate body is completed, checking the firmness and the tightness of the installation of the plugging plate body;
and 5, in the process of carrying out the caisson and heavy-load submerging of the floating dock, after the draft of the caisson reaches a floating stability line, standing for 10 minutes, and observing whether the plugging plate meets the water retaining requirement or not, wherein the caisson can be taken out of the dock after meeting the requirement.
Further, in the step 1, the number of the fasteners is determined according to the shear strength checking calculation, and the number of the fasteners is specifically calculated as follows:
wherein n-refers to the number of fasteners;
n is the axle center pressure born by the main panel;
In step 2, after the manufacturing of the plugging plate body is completed, the size, the flatness, the weld width, the surface rib spacing and the truss spacing of the plugging plate body are checked and accepted according to the water transportation engineering quality inspection standard (JTS 257-2008).
In step 4, observing whether gaps exist at the contact part of the plugging plate body and the caisson wall body by a visual method, and detecting whether each fastener reaches a design torque value by using a torque wrench; the checking sequence is as follows: the bottom plugging plate of the caisson wall partition is more than or equal to the top plugging plate of the caisson wall partition, and the bottom plugging plate of the caisson wall serial water is more than or equal to the top plugging plate of the caisson wall serial water.
Compared with the existing installation process for welding the main panel to the embedded round table, the anti-series water seal blocking plate for the water inlet window of the large-sized caisson partition wall and the blocking process thereof provided by the invention have the following beneficial effects:
1. the outside both ends of shutoff board body are provided with connection panel, are provided with a plurality of trusses that are parallel to each other between the connection panel, are provided with the back wall in the middle of the truss, are provided with a plurality of face ribs that are parallel to each other between every two trusses of group, can increase the bending resistance and the shear strength of shutoff board body, improve shutoff board body water pressure bearing capacity.
2. The sealing plate body is provided with the fastener all around, and the sealing plate body is spacing and caisson wall connection through fastener and template, can prevent that the sealing plate body from rocking, can effectively avoid pre-buried round platform deviation, and it is convenient to install simultaneously, and the installation work efficiency improves to 5 per day by preceding 2 per day.
Therefore, the invention has the positive effects of increasing the bearing capacity of the plugging plate, solving the problems of large installation deviation of the embedded round table and improving the construction efficiency.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and,
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the inside of the plugging plate body according to the present invention;
FIG. 3 is a schematic view of the outside of the plugging plate body according to the present invention;
FIG. 4 is a schematic structural view of the fastener of the present invention;
FIG. 5 is a view of the installation state of the present invention in use;
1, a plugging plate body; 11. a connection panel; 12. a face rib; 13. truss; 14. a wall is formed; 21. a main panel; 22. a panel support; 23. a fastener; 231. bracing; 232. a nut; 233. a backing plate; 24. a water stop strip; 25. hanging a nose; 26. limiting a template; 261. limiting a vertical template; 262. limiting a horizontal template; 3. caisson wall.
Detailed Description
As shown in fig. 1-4, the anti-series water seal plugging plate for the large caisson partition wall water inlet window provided by the invention comprises a plugging plate body 1, wherein the plugging plate body 1 is matched with the large caisson partition wall water inlet window, fasteners 23 are arranged around the plugging plate body 1, connecting panels 11 are arranged at two ends of the outer side of the plugging plate body 1, and a main panel 21 is arranged at the inner side of the plugging plate body 1; panel supports 22 are arranged on the outer sides of the periphery of the main panel 21; the connecting panels 11 are arranged at two ends of the panel support 22, and a plurality of trusses 13 which are parallel to each other are arranged between the connecting panels 11; the middle of the trusses 13 is provided with a girth 14, and a plurality of mutually parallel face ribs 12 are arranged between each two trusses 13.
Example 1:
in use, as shown in fig. 5, first, project department technicians actually measure the size of the large caisson partition wall water inlet window and determine the number of fasteners 23 through shear strength inspection before the plugging plate body 1 is processed. And manufacturing the plugging plate body 1 according to the size of the large caisson partition wall water inlet window, so that the plugging plate body 1 is matched with the large caisson partition wall water inlet window. And then, after the manufacturing of the plugging plate body 1 is finished, checking and accepting the projects such as the size, the flatness, the weld width, the spacing of the face ribs 12, the spacing of the truss 13 and the like of the plugging plate body 1 according to the water transportation engineering quality inspection standard (JTS 257-2008) and the like. And then, when the plugging plate body 1 is installed, the plugging plate body 1 is hung on the caisson wall 3 after being lifted, and a constructor holds a torque wrench to connect the fastening piece 23 on the inner side of the plugging plate body 1 with the template limit 26 and tightly abuts against the caisson wall 3 so as to achieve the plugging purpose. The tightening degree of the fastener 23 is based on whether the torque value displayed by the torque wrench is equal to or greater than the design value. Finally, after the installation of the plugging plate body 1 is completed, project organization personnel should check the installation firmness and tightness of the plugging plate body 1, observe whether gaps exist at the contact part of the plugging plate body 1 and the caisson wall body 3 by a visual method, and detect whether each fastener 23 reaches a design torque value by using a torque wrench. The checking sequence is as follows: the bottom plugging plate of the caisson wall partition is more than or equal to the top plugging plate of the caisson wall partition, and the bottom plugging plate of the caisson wall serial water is more than or equal to the top plugging plate of the caisson wall serial water. In the heavy-load submerging process of the caisson when the caisson is out of transport and the floating dock, whether the plugging plate has water permeability or not should be closely concerned. When the draft of the caisson reaches the floating stability line, the caisson should stand for 10 minutes, and whether the plugging plate meets the water retaining requirement is observed, and the caisson can be undocked after meeting the requirement.
Example 2:
the inner side of the surface rib 12 is connected with the main panel 21, and the outer two ends of the surface rib 12 are connected with the truss 13; the girls 14 are formed by welding 3 double-groove steel in parallel, and the middle of each girls 14 and the middle face rib 12 of the truss 13 are connected in a welding way. The ribs 12, the trusses 13 and the enclosing ribs 14 all have the function of reinforcing the bending resistance and the shearing resistance of the main panel 21 and are welded sequentially from inside to outside. The main panel 21 is connected with the face rib, the truss and the side wall, so that the integral connection is realized, and the bearing force of the main panel 21 is enhanced.
Example 3:
the outside of the panel support 22 is provided with a water stop strip 24, and the water stop strip 24 adopts a rubber plate with the thickness of 20mm and is adhered to the outside of the panel support 22 through all-purpose adhesive. When the plugging plate body 1 is installed, the plugging plate body 1 is hung on the caisson wall body 3 after being lifted, a constructor holds a torque wrench to connect the fastening piece 23 and the template limit 26 on the inner side of the plugging plate body 1 by bolts and tightly abuts against the caisson wall body 3, and the water stop bar 24 extrudes at least 1cm towards the inner side so as to achieve the purpose of plugging, strengthen the plugging performance of the main panel and improve the plugging effect. The upper end of connection panel 11 is provided with hangs nose 25, hangs nose 25 welding on the top of connection panel 11, conveniently hangs the shutoff board body, carries out shutoff board installation.
Example 4:
the plugging plate body 1 and the caisson wall body 3 are connected through a fastener 23 and a template limit 26. The fastener 23 includes a brace 231 and a nut 232, one end of the brace is fixed on the main panel 21, the other end of the brace is fixed on the die plate limit 26 by the nut, and a backing plate 233 is arranged between the brace and the nut. The template limit 26 comprises a vertical template limit 261 and a horizontal template limit 262, the two sides of the caisson wall body 3 are provided with the vertical template limit 261, and the two ends of the caisson wall body 3 are provided with the horizontal template limit 262; the vertical template limit 261 extends out of the upper end and the lower end of the caisson wall body 3 for 20cm respectively, the upper end of the vertical template limit 261 is horizontally arranged with the top end of the horizontal template limit 262, and the lower end of the vertical template limit 261 is horizontally arranged with the bottom end of the horizontal template limit 262; the fastener 23 is secured within a vertical template stop 261 and a horizontal template stop 262. The fastener 23 and the form stop 26 serve to reinforce the closure plate body 1 to the caisson wall 3. The template is spacing 26 to be connected fastener and caisson wall body, can prevent that shutoff board body 1 from rocking, can effectively avoid pre-buried round platform deviation, and the installation is convenient simultaneously, and the installation work efficiency improves to 5 per day by preceding 2 per day, improves the efficiency of construction.
Example 5:
a plugging process of a large caisson partition wall water inlet window anti-series water seal plugging plate comprises the following steps:
step 1, manufacturing a plugging plate body 1 according to the size of a water inlet window of a large caisson partition wall, and determining the number of fasteners 23 through shear strength checking calculation;
step 2, after the plugging plate body 1 is manufactured and inspected to be qualified, hanging the plugging plate body 1 on a caisson wall 3 after hoisting;
step 4, after the installation of the plugging plate body 1 is completed, checking the installation firmness and tightness of the plugging plate body 1;
and 5, in the process of carrying out the caisson and heavy-load submerging of the floating dock, after the draft of the caisson reaches a floating stability line, standing for 10 minutes, and observing whether the plugging plate meets the water retaining requirement or not, wherein the caisson can be taken out of the dock after meeting the requirement.
Example 6:
a plugging process of a large caisson partition wall water inlet window anti-series water seal plugging plate comprises the following steps:
step 1, manufacturing a plugging plate body 1 according to the size of a water inlet window of a large caisson partition wall, determining the number of fasteners 23 through shear strength checking, determining the number of the fasteners 23 according to the shear strength checking, and specifically calculating the number of the fasteners as follows:
wherein n-refers to the number of fasteners;
n is the axle center pressure born by the main panel;
step 2, after the manufacturing of the plugging plate body 1 is finished and the plugging plate body 1 is inspected to be qualified, hanging the plugging plate body 1 on the caisson wall 3 after hoisting, and after the manufacturing of the plugging plate body 1 is finished, inspecting and accepting the size, the flatness, the weld width, the spacing between the surface ribs 12 and the spacing between the trusses 13 of the plugging plate body 1 according to JTS 257-2008 of the quality inspection standard of water transportation engineering;
step 4, after the installation of the plugging plate body 1 is completed, checking the installation firmness and tightness of the plugging plate body 1, observing whether gaps exist at the contact part of the plugging plate body 1 and the caisson wall 3 by a visual method, and detecting whether each fastener 23 reaches a design torque value by using a torque wrench; the checking sequence is as follows: the bottom plugging plate of the caisson wall partition is more than or equal to the top plugging plate of the caisson wall partition, the bottom plugging plate of the caisson wall string water is more than or equal to the top plugging plate of the caisson wall string water;
and 5, in the process of carrying out the caisson and heavy-load submerging of the floating dock, after the draft of the caisson reaches a floating stability line, standing for 10 minutes, and observing whether the plugging plate meets the water retaining requirement or not, wherein the caisson can be taken out of the dock after meeting the requirement.
Claims (7)
1. The anti-stringing water seal blocking plate for the large caisson partition wall water inlet window comprises a blocking plate body (1) and is characterized in that the blocking plate body (1) is matched with the large caisson partition wall water inlet window, fasteners (23) are arranged around the blocking plate body (1), connecting panels (11) are arranged at two ends of the outer side of the blocking plate body (1), a main panel (21) is arranged on the inner side of the blocking plate body (1), and the blocking plate body (1) and the caisson wall body (3) are connected through the fasteners (23) and a template limit (26); panel supports (22) are arranged on the outer sides of the periphery of the main panel (21); the connecting panels (11) are arranged at two ends of the panel support (22), and a plurality of trusses (13) which are parallel to each other are arranged between the connecting panels (11); an enclosing rib (14) is arranged in the middle of each truss (13), and a plurality of mutually parallel surface ribs (12) are arranged between each two trusses (13); the inner side of the surface rib (12) is connected with the main panel (21), and the two ends of the outer side of the surface rib (12) are connected with the truss (13);
the template limiting device comprises a template limiting device and a caisson wall body, wherein the template limiting device (26) comprises a vertical template limiting device (261) and a horizontal template limiting device (262), the vertical template limiting device (261) is arranged on two sides of the caisson wall body (3), and the horizontal template limiting devices (262) are arranged on two ends of the caisson wall body (3); the vertical template limit (261) extends out of the upper end and the lower end of the caisson wall body (3) for 20cm respectively, the upper end of the vertical template limit is horizontally arranged at the top end of the horizontal template limit (262), and the lower end of the vertical template limit is horizontally arranged at the bottom end of the horizontal template limit (262); the fastener (23) is fixed in the vertical template limit (261) and the horizontal template limit (262).
2. The large caisson partition wall water inlet window anti-series water seal blocking plate according to claim 1, wherein the enclosing member (14) is formed by welding 3 double-spliced groove steel in parallel, and the enclosing member (14) is connected with the truss and the face rib.
3. The large caisson partition wall water inlet window anti-series water seal blocking plate according to claim 1, characterized in that a water stop strip (24) is arranged on the outer side of the panel support (22); the upper end of the connecting panel (11) is provided with a hanging nose (25).
4. The large caisson partition wall water inlet window anti-series water seal blocking plate according to claim 1, characterized in that the fastening piece (23) comprises a brace (231) and a nut (232), one end of the brace is fixed on the main panel (21), the other end of the brace is fixed on the template limit (26) by the nut, and a backing plate (233) is arranged between the brace and the nut.
5. The plugging process of the large caisson partition wall water inlet window anti-series water seal plugging plate is characterized by comprising the following steps of:
step 1, manufacturing a plugging plate body (1) according to the size of a water inlet window of a large-sized caisson partition wall, determining the number of fasteners (23) through shear strength checking, and specifically calculating the number of the fasteners as follows:
wherein n-refers to the number of fasteners;
n is the axle center pressure born by the main panel;
step 2, after the plugging plate body (1) is manufactured and inspected to be qualified, hanging the plugging plate body (1) on a caisson wall body (3) after hoisting;
step 3, the fastening piece (23) is connected with the template limit (26) through bolts and abuts against the caisson wall body (3) so as to achieve the blocking purpose;
step 4, after the installation of the plugging plate body (1) is completed, checking the installation firmness and tightness of the plugging plate body (1), and detecting whether each fastener (23) reaches a design torque value by using a torque wrench; the checking sequence is as follows: the bottom plugging plate of the caisson wall partition is more than or equal to the top plugging plate of the caisson wall partition, the bottom plugging plate of the caisson wall string water is more than or equal to the top plugging plate of the caisson wall string water;
and 5, in the process of carrying out the caisson and heavy-load submerging of the floating dock, after the draft of the caisson reaches a floating stability line, standing for 10 minutes, and observing whether the plugging plate meets the water retaining requirement or not, wherein the caisson can be taken out of the dock after meeting the requirement.
6. The plugging process of the large-scale caisson partition wall water inlet window anti-stringing water seal plugging plate according to claim 5 is characterized in that in the step 2, after the plugging plate body (1) is manufactured, the size, the flatness, the weld width, the surface rib spacing and the truss spacing of the plugging plate body (1) are checked and accepted according to the "water transportation engineering quality inspection standard" (JTS 257-2008).
7. The plugging process of the large caisson partition wall water inlet window anti-series water seal plugging plate according to claim 5, wherein in the step 4, whether a gap exists at a contact part of the plugging plate body (1) and the caisson wall body (3) is observed by a visual method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111450395.1A CN113914345B (en) | 2021-12-01 | 2021-12-01 | Anti-series water seal blocking plate for water inlet window of large caisson partition wall and blocking process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111450395.1A CN113914345B (en) | 2021-12-01 | 2021-12-01 | Anti-series water seal blocking plate for water inlet window of large caisson partition wall and blocking process thereof |
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| Publication Number | Publication Date |
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| CN113914345A CN113914345A (en) | 2022-01-11 |
| CN113914345B true CN113914345B (en) | 2023-04-28 |
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| CN202111450395.1A Active CN113914345B (en) | 2021-12-01 | 2021-12-01 | Anti-series water seal blocking plate for water inlet window of large caisson partition wall and blocking process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1092249A1 (en) * | 1982-10-13 | 1984-05-15 | Pushkarevich Valerian S | Method of constructing the bottom of sinkable well |
| CN105089068B (en) * | 2014-05-21 | 2017-02-15 | 中建筑港集团有限公司 | Multifunctional caisson floating templates |
| CN204703504U (en) * | 2015-06-11 | 2015-10-14 | 昆山征途建筑模架应用技术有限公司 | Concrete breast beam integral mold plate |
| CN211256851U (en) * | 2019-10-21 | 2020-08-14 | 中建筑港集团有限公司 | Fixing structure between water sealing template and caisson |
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