CN114319397A - Construction system for jacket box with bottom - Google Patents
Construction system for jacket box with bottom Download PDFInfo
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- CN114319397A CN114319397A CN202111640029.2A CN202111640029A CN114319397A CN 114319397 A CN114319397 A CN 114319397A CN 202111640029 A CN202111640029 A CN 202111640029A CN 114319397 A CN114319397 A CN 114319397A
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- bottom plate
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- 238000010276 construction Methods 0.000 title claims abstract description 45
- 230000008093 supporting effect Effects 0.000 claims abstract description 92
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 12
- 239000003351 stiffener Substances 0.000 description 10
- 238000004873 anchoring Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
The invention provides a construction system of a jacket with a bottom, which is characterized by comprising a jacket bottom plate, jacket side plates, a lifting device and a supporting keel device, wherein the supporting keel device is used for being connected with a steel casing and supporting the jacket bottom plate, a bottom-sealing concrete layer is laid above the jacket bottom plate, a stiffening rib is arranged on one side of the jacket bottom plate, which is far away from the bottom-sealing concrete layer, an anchor bar is arranged on one side of the jacket bottom plate, which is close to the bottom-sealing concrete layer, and the anchor bar penetrates through the jacket bottom plate and is connected with the stiffening rib, and is anchored in the bottom-sealing concrete layer. The anchor bars are arranged in the sleeve box bottom plate and connected with the stiffening ribs, and the anchor bars are anchored in the back cover concrete layer, so that the connection strength of the sleeve box bottom plate and the back cover concrete layer is improved, the supporting strength of the sleeve box bottom plate on the sleeve box side plate is improved, the phenomenon of water leakage caused by sliding of the sleeve box side plate is prevented, and the construction safety of the bearing platform is improved.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a construction system of a jacket box with a bottom.
Background
The method is characterized in that a bottom-capped sleeve box scheme is generally adopted in underwater high-rise pile cap construction, after the sleeve box is installed, bottom-capped concrete is poured to form a closed structure, a lifting system is dismantled, the sleeve box is converted and supported to the joint of the bottom-capped concrete and a pile foundation, water is pumped in the sleeve box to provide an operation dry environment for the cap construction, and a steel casing and the pile foundation above the bottom-capped concrete are cut off to construct the cap.
The bottom-capped suitcases generally consist of a bottom plate, side plates, a lifting system and an inner support system. Before bottom sealing concrete pouring, the lifting system lifts the main keel of the bottom plate through the lifting, the side plate is placed above the bottom plate, and the whole pouring jacket is supported on the steel casing. The pouring of back cover concrete is accomplished, need demolish the system of lifting by crane, demolish and retrieve the back of bottom plate main joist, the bottom plate only remains panel and little stiffening rib structure, its rigidity is less, it is big to warp, it is weaker to the curb plate support ability, the pouring jacket draws water the back, the curb plate only relies on the adhesive force between its and the back cover concrete and the bottom plate provides weak support, the curb plate under dead weight effect and side water pressure effect, break away from with the back cover concrete easily, cause the pouring jacket to leak, the later stage shutoff is very difficult, and the construction risk is high.
Disclosure of Invention
The invention aims to provide a construction system of a jacket with a bottom, which can prevent a side plate of the jacket from separating from bottom sealing concrete and ensure the construction safety of a bearing platform of the jacket.
In order to achieve the purpose, the invention provides the following technical scheme:
a construction system for a jacket with a bottom comprises a jacket bottom plate, jacket side plates, a lifting device and a supporting keel device, wherein the lifting device is used for being installed at the top of a steel casing and lifting the supporting keel device, the supporting keel device is used for being connected with the steel casing and supporting the jacket bottom plate, the jacket side plates are provided with a plurality of blocks and jointly enclose to form a frame structure, a bottom sealing concrete layer is laid above the jacket bottom plate, a stiffening rib is arranged on one side, away from the bottom sealing concrete layer, of the jacket bottom plate, an anchor bar is arranged on one side, close to the bottom sealing concrete layer, of the jacket bottom plate, the anchor bar penetrates through the jacket bottom plate and is connected with the stiffening rib, and the anchor bar is anchored in the bottom sealing concrete layer.
Further setting: the pouring jacket bottom plate includes a plurality of interval parallel arrangement's supporting baseplate, every set up at least one on the supporting baseplate and can supply the steel to protect the hole of dodging that a section of thick bamboo passed, the stiffening rib set up in the length direction who follows the supporting baseplate extends on the supporting baseplate.
Further setting: and an auxiliary plate is arranged between two adjacent supporting bottom plates and is used for being temporarily spliced with the supporting bottom plates and providing temporary support for the side plates of the box set.
Further setting: the supporting bottom plate has been seted up two at least along its length direction interval dodge the hole, the supporting bottom plate includes two tip backup pads and at least one middle part backup pad, two the tip backup pad corresponds respectively and sets up in the both ends of supporting bottom plate and is used for supporting the pouring jacket curb plate, the middle part backup pad sets up between two tip backup pads, the tip backup pad and the one end that the middle part backup pad is close to each other all are seted up the semicircular breach of dodging and form jointly dodge the hole.
Further setting: the stiffening ribs comprise first stiffening ribs and second stiffening ribs, the first stiffening ribs are arranged on the end supporting plate, the second stiffening ribs are arranged on the middle supporting plate, and the anchor bars are arranged on the end supporting plate and penetrate through the end supporting plate to be connected with the first stiffening ribs.
Further setting: the end supporting plate is provided with a plurality of first stiffening ribs at intervals along the width direction of the supporting bottom plate, the supporting bottom plate further comprises a reverse ram, the reverse ram is arranged on the plurality of first stiffening ribs in a spanning mode and is perpendicularly connected with the plurality of first stiffening ribs, and the reverse ram is located on one side, away from the back cover concrete layer, of the jacket side plate.
Further setting: the outer wailing is arranged on the outer surface of the plurality of the side plates of the sleeve box in a spanning mode and is fixedly connected with the plurality of the side plates of the sleeve box, a pull rod is arranged on the outer wailing in a penetrating mode, a through hole through which the pull rod can pass is formed in the side plate of the sleeve box, and the pull rod passes through the through hole to connect and fix the outer wailing with the side plate of the sleeve box.
Further setting: the inner clamping plate and the outer clamping plate are respectively connected with the bottom plate of the jacket, and are respectively arranged on the inner side and the outer side of the side plate and are respectively abutted against the side plate of the jacket.
Further setting: the supporting keel device comprises a plurality of main keels which are arranged in parallel, the stiffening ribs are perpendicular to the main keels, and the stiffening ribs are erected above the main keels.
Further setting: the lifting device comprises a jack, a lifting carrying pole beam and a hanging rod, the jack is used for being installed at the top of the steel casing, the lifting carrying pole beam is installed on the jack, and the hanging rod is connected with the lifting carrying pole beam and is used for lifting the supporting keel device.
Compared with the prior art, the scheme of the invention has the following advantages:
1. in the construction system of the jacketed box with the bottom, the anchor bars are arranged in the jacketed box bottom plate and connected with the stiffening ribs, the anchor bars are anchored in the bottom sealing concrete layer, and the connection strength of the jacketed box bottom plate and the bottom sealing concrete layer is improved, so that the support strength of the jacketed box bottom plate to the side plates of the jacketed box is improved, the phenomenon of water leakage caused by the sliding of the jacketed box side plates is prevented, and the construction safety of the bearing platform is improved.
2. In the construction system of the jacketed box with the bottom, the auxiliary plate is arranged between the two adjacent supporting bottom plates and is spliced with the supporting bottom plates, so that the bottom of the jacketed box forms a sealing structure, the pouring of a bottom-sealing concrete layer is facilitated, and after the pouring of the bottom-sealing concrete layer is finished, the auxiliary plate can be detached and recovered, thereby reducing the consumption of steel and lowering the construction cost.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a bottom-capped crate construction system in an embodiment of the invention;
FIG. 2 is a schematic view of the installation of the bottom plate of the container and the support grid assembly in an embodiment of the present invention;
FIG. 3 is a schematic illustration of the joining of a support base plate and an auxiliary plate according to an embodiment of the present invention;
FIG. 4 is a top view of an end support plate in an embodiment of the present invention;
FIG. 5 is a side view of an end support plate in an embodiment of the present invention;
FIG. 6 is a top view of a middle support plate in an embodiment of the present invention;
FIG. 7 is a side view of a central support plate in an embodiment of the invention;
FIG. 8 is an enlarged schematic view at A of FIG. 1;
FIG. 9 is a top view of a bottom enclosure in an embodiment of the invention;
fig. 10 is a schematic view showing an installation method of a bottom-capped crate construction system in an embodiment of the present invention.
In the figure, 1, a bottomed jacket; 11. a jacket bottom plate; 111. anchoring ribs; 112. a support base plate; 1121. avoiding holes; 1122. an end support plate; 1123. a middle support plate; 1124. a first stiffener; 1125. a second stiffener; 1126. a reverse ram; 1127. an auxiliary lever; 12. a side plate of the casing; 13. a bottom sealing concrete layer; 14. an inner clamping plate; 15. an outer clamping plate; 16. wailing; 17. a pull rod; 18. an inner support; 2. lifting the device; 21. a jack; 22. lifting the carrying pole beam; 23. a boom; 3. a support keel means; 4. an auxiliary plate; 5. and (5) a steel casing.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
As shown in fig. 1 to 10, the present invention provides a construction system of a bottomed jacket comprising a bottomed jacket 1, a lifting device 2 and a support keel device 3, the jacket box 1 with the bottom comprises a jacket box bottom plate 11 and jacket box side plates 12, the lifting device 2 is used for being arranged at the top of the steel casing 5 and lifting the supporting keel device 3, the supporting keel device 3 is used for connecting with the steel casing 5 and supporting the bottom plate 11 of the pouring jacket, the jacket side plates 12 are provided with a plurality of blocks which are enclosed together to form a frame-shaped structure, a bottom sealing concrete layer 13 is laid above the jacket bottom plate 11, stiffening ribs are arranged on one side of the casing bottom plate 11 far away from the back cover concrete layer 13, anchor bars 111 are arranged on one side of the casing bottom plate 11 near the back cover concrete layer 13, the anchor bars 111 penetrate through the casing bottom plate 11 and are connected with the stiffening ribs, and the anchor bars 111 are anchored in the bottom-sealing concrete layer 13.
Through set up anchor bar 111 in pouring jacket bottom plate 11, anchor bar 111 is connected with the stiffening rib, anchors anchor bar 111 in back cover concrete layer 13, improves pouring jacket bottom plate 11 and back cover concrete layer 13's joint strength to promote pouring jacket bottom plate 11 to the support intensity of pouring jacket curb plate 12, prevent that pouring jacket curb plate 12 from landing and the phenomenon that takes place to leak, improve cushion cap construction security.
In this embodiment, the bottom plate 11 of the casing includes a plurality of supporting bottom plates 112 arranged in parallel at intervals, each supporting bottom plate 112 is provided with at least one avoiding hole 1121 for the steel casing 5 to pass through, and the stiffening rib is disposed on the supporting bottom plate 112 and extends along the length direction of the supporting bottom plate 112. In this embodiment, the supporting bottom plate 112 has 3 pieces, and each supporting bottom plate 112 is correspondingly sleeved on the peripheries of two steel casing cylinders 5.
In the present embodiment, an auxiliary plate 4 is disposed between two adjacent support bottom plates 112, and the auxiliary plate 4 is used for temporarily splicing with the support bottom plates 112 and providing temporary support for the side plates 12 of the box. Preferably, the auxiliary plate 4 is provided with 4 pieces, and the auxiliary plates 4 are alternately arranged with the support base plate 112. The length of the auxiliary plate 4 is the same as that of the supporting bottom plate 112, and before the bottom sealing concrete is poured, the auxiliary plate 4 is assembled with the supporting bottom plate 112, so that the bottom of the jacket box is closed, the bottom sealing concrete is convenient to pour, after pouring is finished, the auxiliary plate 4 can be detached and recycled, and is only supported by the supporting bottom plate 112, thereby reducing the steel consumption of the jacket box bottom plate 11 and lowering the construction cost.
Further, the support base plate 112 is provided with at least two avoiding holes 1121 at intervals along the length direction thereof, the support base plate 112 includes two end support plates 1122 and at least one middle support plate 1123, the two end support plates 1122 are respectively and correspondingly disposed at two ends of the support base plate 112 and are used for supporting the jacket side plate 12, the middle support plate 1123 is disposed between the two end support plates 1122, and one ends of the end support plates 1122 and the one ends of the middle support plates 1123 close to each other are provided with semicircular avoiding notches and jointly form the avoiding holes 1121.
Through cutting apart supporting baseplate 112 and forming tip backup pad 1122 and middle part backup pad 1123, reduce the area of steel sheet, can assemble under water, the construction degree of difficulty is low, also can guarantee supporting baseplate 112 and the laminating compactness of steel casing 5, more is favorable to the shaping of pouring of back cover concrete layer 13.
In this embodiment, the end supporting plates 1122 are provided in two pieces and are respectively disposed at two end positions of the supporting base plate 112, and the middle supporting plate 1123 is provided in one piece, in other embodiments, the middle supporting plate 1123 may also be provided in two or more pieces, and the number of the middle supporting plates 1123 depends on the number of the steel casing pipes 5 in each row. In the present embodiment, the end support plates 1122 have a short longitudinal length, the middle support plates 1123 have a long longitudinal length, the end support plates 1122 serve to support the side panels 12, and the middle support plates 1123 do not provide support to the side panels 12.
Further, the stiffening ribs include a first stiffening rib 1124 and a second stiffening rib 1125, the first stiffening rib 1124 is disposed on the end support plate 1122, the second stiffening rib 1125 is disposed on the middle support plate 1123, and the anchor bar 111 is disposed on the end support plate 1122 and connected to the first stiffening rib 1124 through the end support plate 1122. In this embodiment, the first and second stiffening ribs 1124 and 1125 each extend along the length of the support base 112.
Preferably, a plurality of the first stiffening ribs 1124 are provided on the end supporting plate 1122 at intervals in the width direction of the supporting base plate 112, a plurality of the second stiffening ribs 1125 are provided on the middle supporting plate 1123 at intervals in the width direction of the supporting base plate 112, and the first stiffening ribs 1124 and the second stiffening ribs 1125 are located on the same straight line.
Through setting up first stiffening rib 1124 and second stiffening rib 1125, improved supporting baseplate 112's structural strength, made supporting baseplate 112 be difficult for taking place to warp to can provide better supporting effect for pouring jacket curb plate 12, can keep laminating with back cover concrete layer 13 better moreover, guarantee pouring jacket bottom plate 11's leakproofness, avoid appearing the phenomenon of leaking.
Further, the support base plate 112 further includes a reverse-lifting lever 1126, the reverse-lifting lever 1126 spans the plurality of first stiffening ribs 1124 and is vertically connected with the plurality of first stiffening ribs 1124, and preferably, the reverse-lifting lever 1126 is welded with the first stiffening ribs 1124. The anti-flip lever 1126 is located on the side of the casing side plate 12 away from the back cover concrete layer 13. Preferably, an end of the first stiffener 1124 remote from the middle support plate 1123 protrudes outward relative to the end support plate 1122, and the anti-cantilever lever 1126 is connected to an end of the first stiffener 1124 remote from the middle support plate 1123 on a side of the first stiffener 1124 adjacent to the end support plate 1122.
By providing the reverse ram 1126, the reverse ram 1126 is connected to the plurality of first stiffeners 1124, and the plurality of first stiffeners 1124 are integrally connected, thereby further improving the overall structural strength of the end support plate 1122.
Further, the support base plate 112 further comprises an auxiliary bar 1127, the auxiliary bar 1127 straddles the second stiffening ribs 1125 and is vertically connected to the second stiffening ribs 1125, and the auxiliary bar 1127 is connected to the second stiffening ribs 1125 at a side away from the middle support plate 1123. Preferably, the auxiliary bar 1127 is welded and fixed to the second stiffening rib 1125. By providing the auxiliary bars 1127, the auxiliary bars 1127 integrally connect the plurality of second stiffeners 1125, further increasing the overall structural strength of the middle support plate 1123.
Further, one end of each of the first stiffening ribs 1124 extends to the avoiding hole 1121, and two ends of each of the second stiffening ribs 1125 correspondingly extend to the two avoiding holes 1121, in this embodiment, the length of each of the first stiffening ribs 1124 decreases gradually from the two sides of the end support plate 1122 to the middle, and the length of each of the second stiffening ribs 1125 decreases gradually from the two sides of the middle support plate 1123 to the middle.
In this embodiment, the one end that stiffening rib was kept away from to dowel 111 is the crotch form, preferably is 90 and buckles, through setting the tip of dowel 111 to the structure of buckling, has promoted the anchor effect of dowel and back cover concrete layer 13, makes the difficult and back cover concrete layer 13 emergence separation of pouring jacket bottom plate 11.
Further, the jacket 1 with the bottom also comprises an inner clamping plate 14 and an outer clamping plate 15, the inner clamping plate 14 and the outer clamping plate 15 are respectively connected with the jacket bottom plate 11, and the inner clamping plate 14 and the outer clamping plate 15 are respectively arranged on the inner side and the outer side of the side plates and are respectively abutted against the jacket side plates 12. The inner clamping plate 14 and the outer clamping plate 15 are respectively welded with the sleeve bottom plate 11. In this embodiment, the two end portions of the bottom of the casing are arc-shaped, the middle portion is rectangular, and the auxiliary boards 4 below the arc-shaped portions of the two ends of the casing are removed after the construction of the bottom-sealing concrete is completed. Therefore, in the present embodiment, the inner card 14 and the outer card 15 are only part of the straight line on both sides of the casing. Further, the inner clamping plate 14 is anchored in the back cover concrete layer 13. The inner card 14 and the outer card 15 are connected to an end support plate 1122.
Further, the jacket 1 with the bottom also comprises outer wails 16, the outer wails 16 are arranged on the outer surfaces of the plurality of jacket side plates 12 in a straddling manner and are fixedly connected with the plurality of jacket side plates 12, pull rods 17 penetrate through the outer wails 16, perforations through which the pull rods 17 can pass are formed in the jacket side plates 12, and the pull rods 17 penetrate through the perforations to connect and fix the outer wails 16 with the jacket side plates 12.
Preferably, the height of the outer wails 16 is lower than the top surface height of the back cover concrete layer 13, and the pull rod 17 penetrates through the side plate 12 of the casing and is anchored in the back cover concrete layer 13. And one end of the pull rod 17, which is far away from the back cover concrete layer 13, is provided with an anchoring nut, the anchoring nut is in threaded connection with the pull rod 17, and the anchoring nut is tightly propped against one side, which is far away from the pouring jacket lateral plate 12, of the periphery jail 16 and is used for pressing and attaching the pouring jacket lateral plate 12 and the back cover concrete layer 13. Preferably, a water stop pad is installed at the perforation, and the pull rod 17 is connected with the water stop pad in a sealing manner.
Through enclosing 16 at the outside surface installation of cover case curb plate 12, enclosing 16 strides on locating a plurality of cover case curb plates 12, connects a plurality of cover case curb plates 12 and forms wholly, has promoted the connection reliability of cover case curb plate 12, prevents that cover case curb plate 12 from taking place to warp or the landing, has improved the overall structure stability of end cover case 1. In addition, waiters 16 penetrate into the inner side of the jacket side plate 12 through the pull rod 17, the pull rod 17 is anchored in the bottom sealing concrete, the pull rod 17 is not easy to loosen, and the structural stability of waiters 16 is ensured. And the anchor nut at the end of the pull rod 17 can be tightly abutted against the outer wall which is externally waited to be 16, so that the sleeve side plate 12 is tightly attached to the back cover concrete layer 13, the connection tightness between the sleeve side plate 12 and the back cover concrete layer 13 is improved, and the sleeve side plate 12 is prevented from slipping. Set up the stagnant water pad structure and can seal the perforation position, promote the waterproof sealing nature of pouring jacket.
Further, the outer side surface of the side box 12 is provided with a support corbel (not shown in the figure), which is provided below the outer wailing 16 and is used for supporting the outer wailing 16. Through setting up the support bracket, utilize the support bracket to support wailing 16, reduce the atress of pull rod 17, avoid pull rod 17 atress too big emergence warp and make wailing 16 drop, further promote wailing 16's structural stability.
Further, the support keel device 3 comprises a plurality of main keels arranged in parallel, the stiffening ribs are perpendicular to the main keels, and the stiffening ribs are erected above the main keels. In this embodiment, in the construction process, the casing bottom plate 11 and the main keel are not welded, and are only supported on the main keel, and after the bottom-sealing concrete layer 13 is poured, the main keel needs to be removed and recovered, and the auxiliary plate 4 also needs to be removed and recovered.
Further, the lifting device 2 comprises a jack 21, a lifting carrying pole beam 22 and a hanging rod 23, wherein the jack 21 is used for being installed at the top of the steel casing 5, the lifting carrying pole beam 22 is installed on the jack 21, and the hanging rod 23 is connected with the lifting carrying pole beam 22 and is used for lifting the supporting keel device 3. Before the bottom concrete layer 13 is poured, the suspender 23 needs to be connected with the main keel, and the suspender 23 is used for lifting the main keel, so that the construction safety in the process of pouring the bottom concrete layer 13 is ensured.
Further, the bottom-capped pouring jacket 1 further comprises an inner support 18, and the inner support 18 is connected between the two oppositely-arranged pouring jacket side plates 12 to provide inner support for the pouring jacket side plates 12 and prevent the pouring jacket side plates 12 from falling to the inner side.
The invention also provides a construction method of the jacket box 1 with the bottom, which comprises the following steps:
a support keel device 3 is built on the steel casing 5;
a casing bottom plate 11 and a casing side plate 12 are sequentially arranged on the supporting keel device 3;
lifting the support keel device 3 by means of the lifting device 2;
a bottom-sealing concrete layer 13 is poured on the pouring jacket bottom plate 11, and the anchor bars 111 connected to the pouring jacket bottom plate 11 are anchored in the bottom-sealing concrete layer 13;
and (3) after water in the pouring jacket is pumped out, removing the support keel device 3 and the lifting device 2, and cutting off the steel pile casing 5 above the bottom-sealed concrete layer 13.
Through in pouring back cover concrete layer 13 with anchor bar 111 anchor, after pouring, promote the joint strength of pouring jacket bottom plate 11 and back cover concrete layer 13, prevent pouring jacket lateral plate 12 landing, improved the construction security of cushion cap.
Further, after the casing bottom plate 11 and the casing side plate 12 are installed on the support keel device 3 for the first time, the method further comprises the following steps:
an inner support 18 is mounted inside the jacket.
Further, before the step of lifting the support keel device 3 by means of the lifting device 2, the following steps are included:
and a lifting device 2 is arranged at the top of the steel casing 5.
Preferably, a jack 21 of the lifting device 2 is installed on the top of the steel casing 5, a lifting carrying pole 22 is installed on the jack 21, a hanging rod 23 is installed on the lifting carrying pole 22 and the hanging rod 23 is made to fall, and the hanging rod 23 is used for being connected with the supporting keel device 3.
Further setting, when installing the cover box bottom plate 11 and the cover box side plate 12 on the support keel device 3 in proper order, including following step:
the end supporting plates 1122 and the middle supporting plate 1123 in the jacket bottom plate 11 are spliced around the steel casing 5 to form the supporting bottom plates 112, and the auxiliary plate 4 is installed between the adjacent two supporting bottom plates 112.
Further setting, after the step of removing the support keel device 3 and the lifting device 2 after the water in the jacket is pumped, the method also comprises the following steps:
the auxiliary board 4 is separated from the back cover concrete layer 13 and recovered.
In this embodiment, the auxiliary board 4 and the supporting bottom board 112 are not welded, but only spliced with each other, and after the bottom-sealing concrete layer 13 is poured, the auxiliary board 4 is removed and recovered.
Further, the method is provided with the step of prefabricating the end support plates 1122 before the step of splicing the end support plates 1122 and the middle support plates 1123 in the jacket bottom plate 11 around the steel casing 5 to form the support bottom plate 112, and comprises the following steps:
a plurality of first reinforcing ribs 1124 are welded to the back surface of the end support plate 1122 so that the end portions of the first reinforcing ribs 1124 extend along the end portion of the end support plate 1122, a reverse cantilever 1126 is welded to the extending end portions of the plurality of first reinforcing ribs 1124, and the end support plate 1122 is perforated to penetrate the anchor 111 and the anchor 111 is welded to the first reinforcing ribs 1124.
Further, before the step of splicing the end support plates 1122 and the middle support plate 1123 in the jacket bottom plate 11 around the steel casing 5 to form the support bottom plate 112, prefabricating the middle support plate 1123 is included, which includes the following steps:
a plurality of second stiffeners 1125 are welded to the back surface of the middle support plate 1123, and auxiliary bars 1127 are welded to the side of the plurality of second stiffeners 1125 away from the middle support plate 1123.
Further setting, in the step of installing the jacket box bottom plate 11 and the jacket box side plate 12 on the supporting keel device 3 in sequence, the method comprises the following steps:
the supporting bottom plate 112 is supported on the supporting keel device 3 at intervals, the supporting bottom plate 112 and the supporting keel device 3 are used for installing the pouring jacket side plate 12 on the pouring jacket bottom plate 11, the inner clamping plate 14 and the outer clamping plate 15 are respectively and correspondingly installed on the inner side and the outer side of the bottom of the pouring jacket side plate 12, and the inner clamping plate 14 and the outer clamping plate 15 are fixedly welded with the pouring jacket bottom plate 11.
Further setting, after the step of sequentially installing the box bottom plate 11 and the box side plate 12 on the supporting keel device 3, the method also comprises the following steps:
and (3) enclosing wails 16 are installed at the position, lower than the height of the bottom-sealed concrete layer 13, on the outer side wall of the box bottom plate 11, and penetrate into the inner side of the box side plate 12 after penetrating through the enclosing wails 16 by means of a pull rod 17.
Further, after the step of pouring the bottom sealing concrete layer 13 on the pouring jacket bottom plate 11, the method further comprises the following steps:
an anchoring nut is arranged on the pull rod 17 and is tightly pressed against the outer side wall of the wailing 16.
The side plates 12 of the sleeve box are tightly attached to the outer side wall of the wails 16 by means of the anchoring nuts, so that the sleeve box side plates are more tightly attached to the bottom sealing concrete layer 13, and the bonding effect is better.
Further setting, before the step of installing wailing 16 at a position on the outer side wall of the casing bottom plate 11 lower than the height of the bottom concrete layer 13, the method further comprises the following steps:
and a support bracket is arranged on the outer side wall of the side plate 12 of the sleeve box below the position where the wails 16 are arranged.
Further, after the step of penetrating waivers by means of the pull rod 17 and penetrating the inner sides of the side plates 12 of the sleeve box, the method comprises the following steps: and a water stop pad is arranged at the position of the through hole of the pull rod 17 arranged on the side plate 12 of the sleeve box.
In summary, the scheme of the invention has the following advantages:
1. in the construction system of the jacketed box with the bottom, the anchor bars are arranged in the jacketed box bottom plate and connected with the stiffening ribs, the anchor bars are anchored in the bottom sealing concrete layer, and the connection strength of the jacketed box bottom plate and the bottom sealing concrete layer is improved, so that the support strength of the jacketed box bottom plate to the side plates of the jacketed box is improved, the phenomenon of water leakage caused by the sliding of the jacketed box side plates is prevented, and the construction safety of the bearing platform is improved.
2. In the construction system of the jacketed box with the bottom, the auxiliary plate is arranged between the two adjacent supporting bottom plates and is spliced with the supporting bottom plates, so that the bottom of the jacketed box forms a sealing structure, the pouring of a bottom-sealing concrete layer is facilitated, and after the pouring of the bottom-sealing concrete layer is finished, the auxiliary plate can be detached and recovered, thereby reducing the consumption of steel and lowering the construction cost.
3. In the construction system of the jacketed box with the bottom, the inner clamping plate and the outer clamping plate are respectively arranged on the inner side and the outer side of the side plate of the jacketed box, the inner clamping plate and the outer clamping plate jointly play a role in limiting the side plate of the jacketed box, and can prevent the bottom of the side plate of the jacketed box from warping and deforming to cause a gap between the side plate of the jacketed box and the bottom-sealing concrete layer, so that the sealing property between the side plate of the jacketed box and the bottom-sealing concrete layer is improved.
4. In the construction system of the jacketed box with the bottom, the outer wall of the side plate of the jacketed box is provided with the outer wails, and the outer wall jail is fixed on the outer wall of the side plate of the jacketed box by the pull rod and the anchoring nut, so that the side plate of the jacketed box is more tightly attached to the bottom-sealing concrete layer, the bonding effect is higher, the side plate of the jacketed box is prevented from being separated from the bottom-sealing concrete layer, and the construction safety of a bearing platform is improved.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A construction system of a jacket with a bottom is characterized in that: including pouring jacket bottom plate, pouring jacket curb plate, lifting device and support keel device, lifting device is used for installing and protects a top and carry the crane to the support keel device at the steel, the support keel device is used for protecting a section of thick bamboo with the steel and is connected and support the pouring jacket bottom plate, the pouring jacket curb plate is equipped with the polylith and encloses jointly and form the frame structure, back cover concrete layer has been laid to pouring jacket bottom plate top, one side that back cover concrete layer was kept away from to the pouring jacket bottom plate is equipped with stiffening rib, one side that the pouring jacket bottom plate is close to back cover concrete layer is equipped with the dowel, the dowel passes the pouring jacket bottom plate and is connected with stiffening rib, just the dowel anchor is in the back cover concrete layer.
2. A bottomed jacket construction system according to claim 1, characterized in that: the pouring jacket bottom plate includes a plurality of interval parallel arrangement's supporting baseplate, every set up at least one on the supporting baseplate and can supply the steel to protect the hole of dodging that a section of thick bamboo passed, the stiffening rib set up in the length direction who follows the supporting baseplate extends on the supporting baseplate.
3. A bottomed jacket construction system according to claim 2, characterized in that: and an auxiliary plate is arranged between two adjacent supporting bottom plates and is used for being temporarily spliced with the supporting bottom plates and providing temporary support for the side plates of the box set.
4. A bottomed jacket construction system according to claim 2, characterized in that: the supporting bottom plate has been seted up two at least along its length direction interval dodge the hole, the supporting bottom plate includes two tip backup pads and at least one middle part backup pad, two the tip backup pad corresponds respectively and sets up in the both ends of supporting bottom plate and is used for supporting the pouring jacket curb plate, the middle part backup pad sets up between two tip backup pads, the tip backup pad and the one end that the middle part backup pad is close to each other all are seted up the semicircular breach of dodging and form jointly dodge the hole.
5. A bottomed jacket construction system according to claim 4, characterized in that: the stiffening ribs comprise first stiffening ribs and second stiffening ribs, the first stiffening ribs are arranged on the end supporting plate, the second stiffening ribs are arranged on the middle supporting plate, and the anchor bars are arranged on the end supporting plate and penetrate through the end supporting plate to be connected with the first stiffening ribs.
6. A bottomed jacket construction system according to claim 5, characterized in that: the end supporting plate is provided with a plurality of first stiffening ribs at intervals along the width direction of the supporting bottom plate, the supporting bottom plate further comprises a reverse ram, the reverse ram is arranged on the plurality of first stiffening ribs in a spanning mode and is perpendicularly connected with the plurality of first stiffening ribs, and the reverse ram is located on one side, away from the back cover concrete layer, of the jacket side plate.
7. A bottomed jacket construction system according to claim 1, characterized in that: the outer wailing is arranged on the outer surface of the plurality of the side plates of the sleeve box in a spanning mode and is fixedly connected with the plurality of the side plates of the sleeve box, a pull rod is arranged on the outer wailing in a penetrating mode, a through hole through which the pull rod can pass is formed in the side plate of the sleeve box, and the pull rod passes through the through hole to connect and fix the outer wailing with the side plate of the sleeve box.
8. A bottomed jacket construction system according to claim 1, characterized in that: the inner clamping plate and the outer clamping plate are respectively connected with the bottom plate of the jacket, and are respectively arranged on the inner side and the outer side of the side plate and are respectively abutted against the side plate of the jacket.
9. A bottomed jacket construction system according to claim 1, characterized in that: the supporting keel device comprises a plurality of main keels which are arranged in parallel, the stiffening ribs are perpendicular to the main keels, and the stiffening ribs are erected above the main keels.
10. A bottomed jacket construction system according to claim 1, characterized in that: the lifting device comprises a jack, a lifting carrying pole beam and a hanging rod, the jack is used for being installed at the top of the steel casing, the lifting carrying pole beam is installed on the jack, and the hanging rod is connected with the lifting carrying pole beam and is used for lifting the supporting keel device.
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|---|---|---|---|
| CN202111640029.2A CN114319397B (en) | 2021-12-29 | 2021-12-29 | Construction system for bottom sleeve box |
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| CN202111640029.2A CN114319397B (en) | 2021-12-29 | 2021-12-29 | Construction system for bottom sleeve box |
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| CN114319397B CN114319397B (en) | 2024-03-26 |
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| CN114319397B (en) | 2024-03-26 |
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