CN112459129A - Expansion joint shaping mold device and construction method - Google Patents
Expansion joint shaping mold device and construction method Download PDFInfo
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- CN112459129A CN112459129A CN202011370705.4A CN202011370705A CN112459129A CN 112459129 A CN112459129 A CN 112459129A CN 202011370705 A CN202011370705 A CN 202011370705A CN 112459129 A CN112459129 A CN 112459129A
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- template
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- water stop
- lower template
- rubber water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
Abstract
The invention discloses an expansion joint stereotyped mould device and a construction method, wherein the device comprises an upper template, a lower template and a steel edge rubber water stop belt between the upper template and the lower template; the lower template is a right-angled triangular rigid support system formed by welding keels, template panels, shear-resistant steel bar holes, angle steel keels, diagonal braces A, supports and steel pipe sleeves; installing the upper template above the lower template, folding the upper template and the lower template, fixing the upper template panel and the bottom plate through the reserved movable shear-resistant steel bar reserved hole, and fixing the upper template and the lower template through screwing a tension screw; the angle steel keel of the lower template is provided with a U-shaped groove A and a steel edge rubber water stop horizontal positioner, the bottom of the target panel of the upper template is provided with a U-shaped groove B, and the steel edge rubber water stop is arranged between the U-shaped groove A and the U-shaped groove B. The invention can effectively ensure the forming and the geometric dimension of concrete, ensure that the position of the steel-edged rubber water stop does not shift, and ensure that the steel-edged rubber water stop is straight and does not bend after being formed.
Description
Technical Field
The invention relates to the technical field of pipe gallery expansion joint construction, in particular to an expansion joint sizing die device and a construction method.
Background
In recent years, the development of the fields of emerging buildings such as a comprehensive pipe gallery and a sponge city is promoted by the nation, the living environment of the city is improved, underground waterproof engineering is the important factor influencing the quality of the comprehensive pipe gallery, and particularly, enough attention is paid to the waterproof requirement of an expansion joint of the pipe gallery. Need set up the expansion joint when foundation base floor pours, but set up the expansion joint in general engineering and can produce a lot of problems, for example waterproof measure can not be fine the performance, and one of the leading reasons is that waterproofing membrane is fixed to be reached the standard, has also caused the waste of material simultaneously, carries out the mending-leakage along with waterproof position and can produce bigger expense.
(1) The traditional formwork support mainly takes a position with a certain distance from a formwork and adopts battens, steel bars or steel pipes nailed into a foundation soil body as a fulcrum of a horizontal diagonal brace of the formwork, certain disturbance is caused to foundation soil when the formwork is dismantled, and the horizontal diagonal brace is not beneficial to secondary utilization. The rigidity and the stability of the template can be enhanced through manufacturing the stereotyped template, the pouring quality of concrete is guaranteed, and the device can be recycled for multiple times.
(2) When the waterproof coiled material is paved and adhered, the conventional fixing method has the problems of infirm fixing or insufficient flatness after fixing. The steel-edged rubber water stop fixing device is arranged on the stereotyped template device, so that the position of the waterproof coiled material can be excellently controlled, the movement of the waterproof coiled material in the horizontal direction is controlled, and the integral waterproof capacity is enhanced.
(3) Aiming at the problem of slurry leakage in the concrete engineering, a shear-resistant steel bar rubber water stop ring is arranged at the position where the template panel is connected with the steel bars to prevent liquid leakage.
Disclosure of Invention
The invention aims to solve the technical problem of providing an expansion joint sizing die device and a construction method aiming at the defects in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides an expansion joint regularization mould device, which comprises an upper template, a lower template and a steel-edged rubber water stop, wherein:
the lower template includes: the steel pipe formwork comprises keels, formwork panels, shear-resistant steel bar holes, angle steel keels, inclined struts A, supports and steel pipe sleeves; the bottom of the template panel of the lower template is welded with the keel and is attached to the construction bottom plate through the shear-resistant reinforcing steel bar holes; the top of the template panel is welded with one side of the angle steel keel, and the other side of the angle steel keel is welded with the inclined strut A; and the keel, the bracket, the steel pipe sleeve and the inclined strut A are also welded in sequence, so that the lower template is welded to form a right-angled triangular rigid supporting system;
the upper formwork includes: the keel, the template panel, the shear-resistant reinforcing steel bar holes, the bracket and the diagonal brace B share a steel pipe sleeve with the lower template; the top of a template panel of the upper template is welded with the corresponding keel, a bracket of the upper template is welded with the corresponding keel, one end of an inclined strut B is welded with the bracket of the upper template, and the other end of the inclined strut B is welded with the steel pipe sleeve;
a U-shaped groove A and a steel-edge rubber water stop horizontal positioner are arranged on an angle steel keel of the lower template, a U-shaped groove B is arranged at the bottom of a target panel of the upper template, the U-shaped groove A and the U-shaped groove B are oppositely arranged, the steel-edge rubber water stop is arranged between the U-shaped groove A and the U-shaped groove B, and the steel-edge rubber water stop is adjusted to be horizontal through the steel-edge rubber water stop horizontal positioner; a tension screw rod is further arranged between the upper template and the lower template, the upper end of the tension screw rod penetrates through the support of the upper template, the lower end of the tension screw rod penetrates through an inclined strut A of the lower template, and the upper template and the lower template are limited.
Furthermore, the device also comprises a shear-resistant steel bar rubber water stop ring which is respectively arranged at the shear-resistant steel bar hole of the upper template and above the U-shaped groove B.
Furthermore, the shear steel bar hole is provided with a shear steel bar cylinder and is used for fixing the pull bolt.
Furthermore, the U-shaped groove A and the U-shaped groove B are arranged in a closed mode, so that a closed space is formed between the two U-shaped grooves and is used for fixing the steel-edge rubber water stop.
Furthermore, the upper template and the lower template of the invention are half of the height of the construction bottom plate, and all the parts are welded by all steel materials.
Furthermore, the tension screw rod is used for fixing the upper template and the lower template, keeping the planes of the two templates flat and avoiding the generation of staggered joints.
The invention provides a construction method of an expansion joint sizing die device, which comprises the following steps:
the expansion joint shaping template consists of an upper template and a lower template, the heights of the lower template and the upper template are half of the height of the bottom plate and are welded by adopting all-steel materials, the tail ends of the lower template and the upper template are connected through a steel pipe sleeve sleeved with a steel pipe, and a tension screw is screwed between the two templates to ensure that one sides of the two templates close to the bottom plate are positioned at the same vertical surface;
taking a middle position of the main body vertical surface of the bottom plate to place a horizontal line as an upper edge control line of a U-shaped groove A of the lower template panel, and fixing the lower template after aligning the horizontal line and the upper edge control line; the lower template fixes the lower template plane on the bottom plate plane through the reserved shear-resistant reinforcing steel bar holes and the split bolts, the split bolts are combined during fixing, and the inner sides of the split bolts are welded with the main bars;
installing a steel-edged rubber water stop and arranging a U-shaped groove B at the joint of the upper template and the lower template for fixing the steel-edged rubber water stop, wherein the steel-edged rubber water stop does not generate displacement any more by continuously screwing a tense screw; a steel-edged rubber water stop horizontal positioner is arranged outside the U-shaped groove A, and the size of the horizontal positioner is set according to the specification of the steel-edged rubber water stop, so that the steel-edged rubber water stops are ensured to be positioned on the same horizontal line;
installing the upper template above the lower template, folding the upper template and the lower template, fixing the upper template panel and the bottom plate through the reserved movable shear-resistant steel bar preformed hole, and fixing the upper template and the lower template through screwing a tension screw rod to keep the planes of the two templates flat without generating a staggered joint; when the shear steel bars are installed, the sealing rubber rings are sleeved in advance, so that concrete is prevented from leaking slurry, and quality defects are avoided;
after the work is finished, finishing the wall pouring task of the comprehensive pipe gallery according to the wall pouring requirement and the notice;
after the concrete is determined to reach the strength required by the formwork dismantling, the formworks are dismantled according to a certain sequence, and finished product protection work is performed.
The invention has the following beneficial effects: the invention relates to an expansion joint stereotyped mould device and a construction method, wherein (1) the expansion joint stereotyped template is used for improving the rigidity of the template, reducing the deformation and enhancing the concrete molding effect. (2) The formwork is fixed through the opposite-pulling screw rods, and damage to the finished concrete caused by a traditional formwork supporting method is reduced. (3) The steel-edge rubber water stop is fixed through the special structure of the shaping template, and the steel-edge rubber water stop is guaranteed not to be displaced. (4) The reserved opening of the steel bar of the shaping template is blocked by the rubber water stop ring, so that concrete leakage is prevented.
The method mainly aims at the problem that the concrete forming effect of the pipe gallery is poor, the concrete needs to be chiseled and repaired according to the designed geometric dimension, but the strength of the concrete and the bonding force between a repairing layer and the concrete can still be influenced, and when the pipe galleries on the two sides are unevenly settled or greatly deformed, the concrete at the irregular positions of the geometric dimension can be cracked, so that the water resistance is damaged, the water leakage of the pipe gallery is caused, and the normal use of the pipe gallery is influenced. After the model is applied, the forming and the geometric dimension of concrete are effectively ensured, the steel-edged rubber water stop is fixed by a special device, the position of the steel-edged rubber water stop is ensured not to be displaced, and the steel-edged rubber water stop is straight and does not bend after being formed.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of a lower template structure according to an embodiment of the invention;
FIG. 3 is a schematic structural view of a steel-edged water stop fixing device according to an embodiment of the invention;
FIG. 4 is a schematic view of the upper template structure of an embodiment of the present invention;
in the figure: 1-keel; 2-template panel; 3-shearing-resistant reinforcing steel bar holes; 4-angle steel keel; 5-U-shaped groove A; 6-horizontal positioner of rubber waterstop with steel edge; 7-diagonal strut A; 8-a scaffold; 9-steel pipe sleeve; 10-U type groove B; 11-a shear-resistant steel bar rubber water stop ring; 12-tensioning the screw; 13-bracing B; 14-steel edge rubber water stop.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The expansion joint regularization mould device of the embodiment of the invention, the device includes the upper template, lower template, steel edge rubber waterstop 14, wherein:
the lower template includes: the steel pipe formwork comprises keels 1, formwork panels 2, shear-resistant steel bar holes 3, angle steel keels 4, inclined struts A7, supports 8 and steel pipe sleeves 9; the bottom of a template panel 2 of the lower template is welded with a keel 1 and is attached to the construction bottom plate through shear-resistant reinforcing steel bar holes 3; the top of the template panel 2 is welded with one side of an angle steel keel 4, and the other side of the angle steel keel 4 is welded with an inclined strut A7; and the keel 1, the bracket 8, the steel pipe sleeve 9 and the diagonal brace A7 are also welded in sequence, so that the lower template is welded to form a right-angled triangular rigid support system;
the upper formwork includes: the steel pipe formwork comprises keels 1, formwork panels 2, shear-resistant steel bar holes 3, brackets 8 and diagonal braces B13, and shares a steel pipe sleeve 9 with a lower formwork; the top of a template panel 2 of the upper template is welded with the corresponding keel 1, a bracket 8 of the upper template is welded with the corresponding keel 1, one end of an inclined strut B13 is welded with the bracket 8 of the upper template, and the other end of the inclined strut B13 is welded with a steel pipe sleeve 9;
a U-shaped groove A5 and a steel-edge rubber water stop horizontal positioner 6 are arranged on an angle steel keel 4 of the lower template, a U-shaped groove B10 is arranged at the bottom of a target panel of the upper template, a U-shaped groove A5 and a U-shaped groove B10 are oppositely arranged, a steel-edge rubber water stop 14 is arranged between the U-shaped groove A5 and the U-shaped groove B10, and the steel-edge rubber water stop 14 is adjusted to be horizontal through the steel-edge rubber water stop horizontal positioner 6; a tension screw 12 is also arranged between the upper template and the lower template, the upper end of the tension screw 12 passes through the bracket 8 of the upper template, and the lower end of the tension screw passes through the diagonal brace A7 of the lower template to limit the upper template and the lower template.
The device also comprises a shear-resistant steel bar rubber water stop ring 11, wherein the shear-resistant steel bar rubber water stop ring 11 is respectively arranged at the shear-resistant steel bar hole 3 of the upper template and above the U-shaped groove B10. The shearing-resistant reinforcing steel bar cylinder is arranged at the shearing-resistant reinforcing steel bar hole 3 and is fixed by the tension bolt. The U-shaped groove A5 and the U-shaped groove B10 are arranged in a closed mode, so that a closed space is formed between the two U-shaped grooves and is used for fixing the steel-edge rubber water stop 14. The upper template and the lower template are half of the height of the construction bottom plate, and all the parts are welded by all-steel materials. The tension screw 12 is used for fixing the upper template and the lower template, keeping the planes of the two templates flat and not generating a staggered joint.
In another embodiment of the invention:
1) the template is shown in its entirety in fig. 1.
2) The lower form is shown in figure 2.
In the lower template, a rigid supporting system is formed by welding keels, angle steel keels, inclined struts, supports and steel pipe sleeves, a template panel is welded with the keels and attached to a bottom plate, the panel is fixed by welding through reserved shear-resistant steel bar sleeves, and meanwhile, split bolts are arranged. A U-shaped groove and a steel edge rubber water stop horizontal fixing plate device are fixed above the angle steel keel and used for limiting the horizontal movement of the steel edge rubber water stop.
3) The steel-edged water stop fixing device is shown in figure 3.
The upper template and the lower template are closed, so that the two U-shaped grooves form a closed space for fixing the steel-edge rubber water stop, and the leveling control is realized through the horizontal fixer of the steel-edge rubber water stop.
4) The upper form is shown in figure 4.
The upper template panel and the lower template panel are fixed with the main reinforcements of the bottom plate through the shear-resistant reinforcement holes in a welding mode, and meanwhile, split bolts are arranged. The supporting system is formed by connecting square steel, an inclined strut and a lower template through a steel pipe sleeve, and connecting the inclined strut through a tension bolt, so that the upper template and the lower template are firmly integrated. The shear steel bar rubber water stop rings are arranged on two sides of the template panel, so that the phenomenon of slurry leakage when concrete is poured is prevented.
5) Workflow process
Manufacturing a template support of a sizing expansion joint → fixing a lower template → installing a steel edge rubber water stop band and fixing an upper template → pouring a wall of the comprehensive pipe gallery → dismantling the template and protecting a finished product.
The construction method of the expansion joint sizing die device provided by the embodiment of the invention comprises the following steps:
the expansion joint shaping template consists of an upper template and a lower template, the heights of the lower template and the upper template are half of the height of the bottom plate and are welded by adopting all-steel materials, the tail ends of the lower template and the upper template are connected through a steel pipe sleeve sleeved with a steel pipe, and a tension screw is screwed between the two templates to ensure that one sides of the two templates close to the bottom plate are positioned at the same vertical surface;
taking a middle position of the main body vertical surface of the bottom plate to place a horizontal line as an upper edge control line of a U-shaped groove A of the lower template panel, and fixing the lower template after aligning the horizontal line and the upper edge control line; the lower template fixes the lower template plane on the bottom plate plane through the reserved shear-resistant reinforcing steel bar holes and the split bolts, the split bolts are combined during fixing, and the inner sides of the split bolts are welded with the main bars;
installing a steel-edged rubber water stop and arranging a U-shaped groove B at the joint of the upper template and the lower template for fixing the steel-edged rubber water stop, wherein the steel-edged rubber water stop does not generate displacement any more by continuously screwing a tense screw; a steel-edged rubber water stop horizontal positioner is arranged outside the U-shaped groove A, and the size of the horizontal positioner is set according to the specification of the steel-edged rubber water stop, so that the steel-edged rubber water stops are ensured to be positioned on the same horizontal line;
installing the upper template above the lower template, folding the upper template and the lower template, fixing the upper template panel and the bottom plate through the reserved movable shear-resistant steel bar preformed hole, and fixing the upper template and the lower template through screwing a tension screw rod to keep the planes of the two templates flat without generating a staggered joint; when the shear steel bars are installed, the sealing rubber rings are sleeved in advance, so that concrete is prevented from leaking slurry, and quality defects are avoided;
after the work is finished, finishing the wall pouring task of the comprehensive pipe gallery according to the wall pouring requirement and the notice;
after the concrete is determined to reach the strength required by the formwork dismantling, the formworks are dismantled according to a certain sequence, and finished product protection work is performed.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides an expansion joint regularization mould device, its characterized in that, the device includes upper portion template, lower part template, steel limit rubber waterstop (14), wherein:
the lower template includes: the steel pipe formwork comprises keels (1), formwork panels (2), shear-resistant steel bar holes (3), angle steel keels (4), inclined struts A (7), supports (8) and steel pipe sleeves (9); the bottom of a template panel (2) of the lower template is welded with the keel (1) and is attached to the construction bottom plate through the shear-resistant reinforcing steel bar holes (3); the top of the template panel (2) is welded with one side of an angle steel keel (4), and the other side of the angle steel keel (4) is welded with an inclined strut A (7); the keel (1), the bracket (8), the steel pipe sleeve (9) and the inclined strut A (7) are also welded in sequence, so that the lower template is welded to form a right-angled triangular rigid supporting system;
the upper formwork includes: the steel pipe formwork comprises keels (1), formwork panels (2), shear-resistant reinforcing steel bar holes (3), supports (8) and inclined struts B (13), and the keels and the lower formworks share a steel pipe sleeve (9); the top of a template panel (2) of the upper template is welded with the corresponding keel (1), a bracket (8) of the upper template is welded with the corresponding keel (1), one end of an inclined strut B (13) is welded with the bracket (8) of the upper template, and the other end of the inclined strut B is welded with the steel pipe sleeve (9);
a U-shaped groove A (5) and a steel-edge rubber water stop horizontal positioner (6) are arranged on an angle steel keel (4) of the lower template, a U-shaped groove B (10) is arranged at the bottom of a target panel of the upper template, the U-shaped groove A (5) and the U-shaped groove B (10) are oppositely arranged, a steel-edge rubber water stop (14) is arranged between the U-shaped groove A (5) and the U-shaped groove B (10), and the steel-edge rubber water stop (14) is adjusted to be horizontal through the steel-edge rubber water stop horizontal positioner (6); a tension screw rod (12) is further arranged between the upper template and the lower template, the upper end of the tension screw rod (12) penetrates through a support (8) of the upper template, and the lower end of the tension screw rod (12) penetrates through an inclined strut A (7) of the lower template to limit the upper template and the lower template.
2. The expansion joint sizing mold device according to claim 1, further comprising a shear-resistant rubber sealing ring (11), wherein the shear-resistant rubber sealing ring (11) is respectively disposed at the shear-resistant reinforcement hole (3) of the upper formwork and above the U-shaped groove B (10).
3. The expansion joint sizing die device according to claim 1, wherein a shear reinforcement cylinder is provided at the shear reinforcement hole (3), and a tie bolt is provided for fixing.
4. The expansion joint sizing die device according to claim 1, wherein the U-shaped groove A (5) and the U-shaped groove B (10) are arranged in a closed manner, so that a closed space is formed between the two U-shaped grooves for fixing the steel edge rubber water stop (14).
5. The expansion joint sizing die device as claimed in claim 1, wherein the upper and lower die plates are half the height of the construction base plate, and all the parts are welded by all steel materials.
6. The expansion joint sizing die device according to claim 1, wherein the tension screw (12) is used for fixing the upper and lower templates to keep the two templates flat without generating a wrong joint.
7. A construction method of an expansion joint sizing die device is characterized by comprising the following steps:
step 1, manufacturing a shaped expansion joint template support;
the expansion joint shaping template consists of an upper template and a lower template, the heights of the lower template and the upper template are half of the height of the bottom plate and are welded by adopting all-steel materials, the tail ends of the lower template and the upper template are connected through a steel pipe sleeve sleeved with a steel pipe, and a tension screw is screwed between the two templates to ensure that one sides of the two templates close to the bottom plate are positioned at the same vertical surface;
step 2, fixing the lower template;
taking a middle position of the main body vertical surface of the bottom plate to place a horizontal line as an upper edge control line of a U-shaped groove A of the lower template panel, and fixing the lower template after aligning the horizontal line and the upper edge control line; the lower template fixes the lower template plane on the bottom plate plane through the reserved shear-resistant reinforcing steel bar holes and the split bolts, the split bolts are combined during fixing, and the inner sides of the split bolts are welded with the main bars;
step 3, mounting and fixing the steel-edged rubber water stop;
installing a steel-edged rubber water stop and arranging a U-shaped groove B at the joint of the upper template and the lower template for fixing the steel-edged rubber water stop, wherein the steel-edged rubber water stop does not generate displacement any more by continuously screwing a tense screw; a steel-edged rubber water stop horizontal positioner is arranged outside the U-shaped groove A, and the size of the horizontal positioner is set according to the specification of the steel-edged rubber water stop, so that the steel-edged rubber water stops are ensured to be positioned on the same horizontal line;
step 4, fixing the upper template;
installing the upper template above the lower template, folding the upper template and the lower template, fixing the upper template panel and the bottom plate through the reserved movable shear-resistant steel bar preformed hole, and fixing the upper template and the lower template through screwing a tension screw rod to keep the planes of the two templates flat without generating a staggered joint; when the shear steel bars are installed, the sealing rubber rings are sleeved in advance, so that concrete is prevented from leaking slurry, and quality defects are avoided;
step 5, pouring the wall body of the comprehensive pipe gallery;
after the work is finished, finishing the wall pouring task of the comprehensive pipe gallery according to the wall pouring requirement and the notice;
step 6, template dismantling and finished product protection;
after the concrete is determined to reach the strength required by the formwork dismantling, the formworks are dismantled according to a certain sequence, and finished product protection work is performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011370705.4A CN112459129A (en) | 2020-11-30 | 2020-11-30 | Expansion joint shaping mold device and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011370705.4A CN112459129A (en) | 2020-11-30 | 2020-11-30 | Expansion joint shaping mold device and construction method |
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| CN112459129A true CN112459129A (en) | 2021-03-09 |
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| CN202011370705.4A Pending CN112459129A (en) | 2020-11-30 | 2020-11-30 | Expansion joint shaping mold device and construction method |
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Application publication date: 20210309 |