CN215669703U - Underground cast-in-place concrete pipe gallery roof deformation joint construction structure - Google Patents

Abstract

The invention discloses a construction structure for a deformation joint of a top plate of an underground cast-in-place concrete pipe gallery, which solves the problem of how to stably position water stop belts and foaming plates in the deformation joint. The method comprises the steps of setting an annular steel bar frame on a steel bar framework of a concrete pouring top plate on two sides of a preset pipe gallery top plate deformation joint, setting clamping grooves for clamping and connecting embedded rubber water stop wing plates on the annular steel bar frame, setting foaming plates above and below the rubber water stop, setting concrete positioning cushion blocks between the annular steel bar frame on two sides and the foaming plates, setting reserved positioning sand boxes filled with sealing paste on the upper surface and the lower surface of the deformation joint, and also setting concrete positioning cushion blocks between the reserved positioning sand boxes and the annular steel bar frame on two sides, so as to ensure that the positions of the water stop, the foaming plates and the sealing paste reserved grooves do not drift in subsequent top plate concrete pouring and vibrating, and improve the forming quality and the waterproof capacity of the deformation joint.

Description

Underground cast-in-place concrete pipe gallery roof deformation joint construction structure

Technical Field

The invention relates to an underground concrete pouring pipe gallery, in particular to a construction structure and a construction method of a deformation joint on a top plate of an underground cast-in-place concrete pipe gallery.

Background

In city municipal construction, can set up cast-in-place underground reinforced concrete's utility tunnel to satisfy the requirement of laying of municipal facilities such as various pipelines in the city, cast-in-place reinforced concrete's utility tunnel's work progress does: on the ground where the pipeline corridor is provided with lines, firstly, a foundation pit is dug in an open mode, foundation treatment, a foundation cushion layer, a leveling layer, a waterproof layer and a protective layer are sequentially carried out at the bottom of the foundation pit, a bottom plate steel bar of the pipeline corridor, a wall body steel bar and a top plate pouring bottom template are bound on the protective layer, a top plate steel bar is bound on the top plate pouring bottom template, bottom plate concrete, guide wall concrete and top plate concrete of the pipeline corridor are continuously poured in a layered mode, and finally, the pipeline corridor is buried underground by a backfilling earth; because the pipe gallery is poured and arranged underground, and soil is covered above the pipe gallery for bearing, closed flexible deformation joints which can effectively prevent water need to be arranged on the pipe gallery at intervals so as to overcome the uneven settlement of the pipe gallery; the building code also requires that a deformation joint is arranged at the maximum interval of no more than 30 meters of the underground comprehensive pipe gallery; before concrete pouring of the top plate of the pipe gallery, a foam plate and a water stop rubber belt are arranged between a reinforcing mesh piece of the left side top plate and a reinforcing mesh piece of the right side top plate, and then, after top plate concrete is poured, a waterproof flexible deformation joint on the top plate of the pipe gallery is formed; in the top plate concrete pouring process, in order to compact the poured concrete, a vibrating rod is needed to vibrate the concrete, and due to the vibration of the poured concrete and the impact force generated by the poured concrete, the positions of the water stop and the foaming plate can deviate, so that the problem that how to stably position the positions of the water stop and the foaming plate in the deformation joint needs to be solved on site is solved.

Disclosure of Invention

The invention provides a construction structure and a construction method for a deformation joint of a top plate of an underground cast-in-place concrete pipe gallery, and solves the technical problem of how to stably position water stop belts and foaming plates in the deformation joint.

The invention solves the technical problems by the following technical scheme:

the general concept of the invention is: arranging an annular reinforcing steel bar frame on a reinforcing steel bar framework of a concrete pouring top plate at two sides of a preset pipe gallery top plate deformation joint, arranging a clamping groove for clamping a wing plate of an embedded rubber water stop on the annular reinforcing steel bar frame, arranging foaming plates above and below the rubber water stop,

the concrete positioning cushion blocks are arranged between the annular reinforcing steel frames on the two sides and the foaming plate, the reserved positioning sand boxes filled with the sealing paste are arranged on the upper surface and the lower surface of the deformation joint, and the concrete positioning cushion blocks are also arranged between the reserved positioning sand boxes and the annular reinforcing steel frames on the two sides, so that the positions of the water stop belts, the foaming plate and the sealing paste reserved grooves are not shifted in subsequent top plate concrete pouring and vibrating, and the forming quality and the waterproof capacity of the deformation joint are improved.

A construction structure for a top plate deformation joint of an underground cast-in-place concrete pipe gallery comprises a pipe gallery top plate concrete pouring bottom template, wherein a top plate deformation joint reserved space gap is formed in the pipe gallery top plate concrete pouring bottom template, a top plate left side lower reinforcing mesh sheet and a top plate left side upper reinforcing mesh sheet are respectively arranged above the pipe gallery top plate concrete pouring bottom template on the left side of the top plate deformation joint reserved space gap, a top plate left side split heads are arranged between the top plate left side lower reinforcing mesh sheet and the top plate left side upper reinforcing mesh sheet, a top plate right side lower reinforcing mesh sheet and a top plate right side upper reinforcing mesh sheet are respectively arranged above the pipe gallery top plate concrete pouring bottom template on the right side of the top plate deformation joint reserved space gap, a top plate right side split heads are arranged between the top plate right side lower reinforcing mesh sheet and the top plate right side upper reinforcing mesh sheet, a top plate right side split heads are arranged between the top plate right side lower reinforcing mesh sheet and the top plate upper reinforcing mesh sheet, a left side annular reinforcing steel bar frame is arranged on the left side of the top plate deformation joint reserved space gap, the left annular reinforcing frame is arranged between the lower reinforcing mesh sheet on the left side of the top plate and the upper reinforcing mesh sheet on the left side of the top plate, and a left reinforcing bar bayonet is arranged on the left annular reinforcing frame; a right annular reinforcing steel bar frame is arranged on the right side of the gap of the reserved space of the deformation joint of the top plate, the right annular reinforcing steel bar frame is arranged between a lower reinforcing steel bar mesh sheet on the right side of the top plate and an upper reinforcing steel bar mesh sheet on the right side of the top plate, and a right reinforcing steel bar bayonet is arranged on the right annular reinforcing steel bar frame; an embedded rubber water stop is arranged in the middle of a reserved space gap of a top plate deformation joint, a left wing plate of the embedded rubber water stop is clamped in a left reinforcing steel bar bayonet, a right wing plate of the embedded rubber water stop is clamped in a right reinforcing steel bar bayonet, a lower foaming plate is arranged in the reserved space gap of the top plate deformation joint right below the embedded rubber water stop, a lower sand box is arranged between the lower bottom surface of the lower foaming plate and a concrete pouring bottom formwork of a pipe gallery top plate, a left middle lower cement cushion block is arranged between the lower foaming plate and a left annular reinforcing steel bar frame, a left lower cement cushion block is arranged between the lower sand box and the left annular reinforcing steel bar frame, a right middle lower cement cushion block is arranged between the lower foaming plate and the right annular reinforcing steel bar frame, and a right lower cement cushion block is arranged between the lower sand box and the right annular reinforcing steel bar frame; the top plate deformation joint pre-space gap right above the embedded rubber water stop is provided with an upper foaming plate, the upper top surface of the upper foaming plate is provided with a cope flask, a left middle upper cement cushion block is arranged between the upper foaming plate and the left annular reinforcing steel frame, a left upper cement cushion block is arranged between the cope flask and the left annular reinforcing steel frame, a right middle upper cement cushion block is arranged between the upper foaming plate and the right annular reinforcing steel frame, and a right upper cement cushion block is arranged between the cope flask and the right annular reinforcing steel frame.

Iron sheets are arranged on the left vertical surface and the right vertical surface of the lower foaming plate, and the iron sheets are arranged on the left vertical surface and the right vertical surface of the upper foaming plate; the structure of the upper sand box is completely the same as that of the lower sand box, the sand box consists of a box body and a box cover, a hinge is arranged between one side of the box body and one side of the box cover, a binding wire is arranged between the other side of the box body and the other side of the box cover, and the box body is filled with fine sand.

The utility model provides a construction method that underground cast in situ concrete piping lane roof movement joint was executed and is constructed, include and set up roof movement joint headspace gap on piping lane roof concrete placement die block, left pipe corridor roof concrete placement die block top in roof movement joint headspace gap sets up reinforcing bar net piece and roof left side on reinforcing bar net piece under the roof left side respectively, in pipe corridor roof concrete placement die block top on the right side in roof movement joint headspace gap, set up reinforcing bar net piece and roof right side on reinforcing bar net piece under the roof right side respectively, its characterized in that following step:

binding and fixing a left annular reinforcing steel bar frame between a left lower reinforcing steel bar mesh on the left side of a top plate and an upper reinforcing steel bar mesh on the left side of the top plate on the left of a top plate deformation joint reserved space gap, wherein a left reinforcing steel bar bayonet is arranged on the left annular reinforcing steel bar frame; binding and fixing a right annular reinforcing steel bar frame between a top plate right lower reinforcing steel bar mesh and a top plate right upper reinforcing steel bar mesh on the right side of the top plate deformation joint reserved space gap, wherein a right reinforcing steel bar bayonet is arranged on the right annular reinforcing steel bar frame;

secondly, arranging the embedded rubber water stop in the middle of a reserved space gap of the deformation joint of the top plate, clamping a left wing plate of the embedded rubber water stop in a left reinforcing steel bar bayonet, and clamping a right wing plate of the embedded rubber water stop in a right reinforcing steel bar bayonet;

thirdly, placing the lower sand box on a concrete pouring bottom formwork of the pipe gallery top plate right below the middle part of the embedded rubber water stop, and then arranging a lower foaming plate between the middle part of the embedded rubber water stop and the upper top surface of the lower sand box; arranging an iron plate on the left vertical surface of the lower foaming plate, connecting a left middle lower cement cushion block fixing pad between the iron plate on the left vertical surface of the lower foaming plate and the left annular steel bar frame, and connecting the left lower cement cushion block fixing pad between the left vertical surface of the lower sand box and the left annular steel bar frame; arranging an iron plate on the right vertical surface of the lower foaming plate, and fixedly cushioning a right middle cement cushion block between the iron plate on the right vertical surface of the lower foaming plate and the right annular steel bar frame;

fourthly, arranging an upper foaming plate in a reserved space gap of a top plate deformation joint right above the embedded rubber water stop, arranging a cope flask on the upper top surface of the upper foaming plate, arranging an iron sheet on the left vertical surface of the upper foaming plate, arranging a left middle and upper cement cushion block between the iron sheet on the left vertical surface of the upper foaming plate and the left annular steel bar frame, arranging a left upper cement cushion block between the cope flask and the left annular steel bar frame, arranging an iron sheet on the right vertical surface of the upper foaming plate, arranging a right middle and upper cement cushion block between the iron sheet on the right vertical surface of the upper foaming plate and the right annular steel bar frame, and arranging a right upper cement cushion block between the cope flask and the right annular steel bar frame;

fifthly, pouring the top plate concrete on the left side of the reserved space gap of the top plate deformation joint firstly to ensure that the left lower cement cushion block is submerged by the height of the concrete layer poured for the first time, and then pouring the top plate concrete on the right side of the reserved space gap of the top plate deformation joint to ensure that the right lower cement cushion block is submerged by the height of the concrete layer poured; checking whether the position of the lower foaming plate is displaced or not, and if so, adjusting the lower foaming plate to the original position;

sixthly, pouring top plate concrete on the left side of the reserved space gap of the top plate deformation joint for the second time, enabling the height of the concrete layer poured for the second time to submerge a left wing plate of the embedded rubber water stop, pouring top plate concrete on the right side of the reserved space gap of the top plate deformation joint for the second time, enabling the height of the concrete layer poured for the second time to submerge a right wing plate of the embedded rubber water stop, checking whether the positions of the upper foaming plate and the embedded rubber water stop are displaced or not, and adjusting the upper foaming plate and the embedded rubber water stop to the original positions if the positions of the upper foaming plate and the embedded rubber water stop are displaced;

seventhly, pouring top plate concrete on the left side of the reserved space gap of the top plate deformation joint for the third time, submerging the left upper cement cushion block by the height of the concrete layer poured for the third time, pouring top plate concrete on the right side of the reserved space gap of the top plate deformation joint for the third time, and submerging the right upper cement cushion block by the height of the concrete layer poured for the third time;

and eighthly, after the top plate concrete to be poured is initially set, removing the top plate concrete pouring bottom template of the pipe gallery, untying binding wires arranged between the box body and the box cover, emptying fine sand in the box body, taking out the drag flask and the cope flask, and filling sealing paste into a groove formed after the drag flask is taken out to form an upper sealing paste strip and a lower sealing paste strip.

The invention ensures the accuracy of the positions of the water stop belt and the foaming plate when the deformation joint on the top plate of the cast-in-place underground concrete pipe gallery is applied, thereby improving the waterproof performance of the deformation joint of the pipe gallery.

Drawings

FIG. 1 is a schematic structural view of a pipe gallery top plate of the present invention after concrete is poured and a deformation joint is initially formed;

FIG. 2 is a schematic structural view of the tube lane and its upper deformation joints of the present invention;

FIG. 3 is a schematic structural diagram of the invention after the reinforcement bars at two sides of the deformation joint are bound on the concrete pouring bottom formwork 1 of the top plate of the pipe gallery;

FIG. 4 is a schematic structural diagram of the present invention after an embedded rubber water stop 13, a lower foaming plate 16 and a drag flask 17 are arranged in a gap 8 of a deformation joint reserved space of a top plate;

FIG. 5 is a schematic structural diagram of the present invention after the embedded rubber water stop 13, the lower foaming plate 16, the lower sand box 17, the upper foaming plate 22 and the upper sand box 23 are arranged in the gap 8 of the deformation joint allowance space of the top plate;

FIG. 6 is a schematic view of the present invention in a three-time concrete casting configuration;

FIG. 7 is a schematic view showing the construction of the deformation joint after the two flasks are removed and replaced to form the upper seal paste strip 32 and the lower seal paste strip 31 in accordance with the present invention;

FIG. 8 is a schematic view of the construction of the flask of the present invention.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings:

a construction structure for a top plate deformation joint of an underground cast-in-place concrete pipe gallery comprises a pipe gallery top plate concrete pouring bottom template 1, a top plate deformation joint reserved space gap 8 is arranged on the pipe gallery top plate concrete pouring bottom template 1, a top plate left side lower reinforcing mesh 2 and a top plate left side upper reinforcing mesh 3 are respectively arranged above the pipe gallery top plate concrete pouring bottom template 1 on the left side of the top plate deformation joint reserved space gap 8, a top plate left side split heads 4 are arranged between the top plate left side lower reinforcing mesh 2 and the top plate left side upper reinforcing mesh 3, a top plate right side lower reinforcing mesh 5 and a top plate right side upper reinforcing mesh 6 are respectively arranged above the pipe gallery top plate concrete pouring bottom template 1 on the right side of the top plate deformation joint reserved space gap 8, a top plate right side split heads 7 are respectively arranged between the top plate right side lower reinforcing mesh 5 and the top plate right side upper reinforcing mesh 6, a left annular reinforcing steel bar frame 9 is arranged on the left side of the reserved space gap 8 of the deformation joint of the top plate, the left annular reinforcing steel bar frame 9 is arranged between the lower reinforcing mesh sheet 2 on the left side of the top plate and the upper reinforcing mesh sheet 3 on the left side of the top plate, and a left reinforcing steel bar bayonet 10 is arranged on the left annular reinforcing steel bar frame 9; a right annular reinforcing steel bar frame 11 is arranged on the right side of the reserved space gap 8 of the deformation joint of the top plate, the right annular reinforcing steel bar frame 11 is arranged between a lower reinforcing mesh 5 on the right side of the top plate and an upper reinforcing mesh 6 on the right side of the top plate, and a right reinforcing steel bar bayonet 12 is arranged on the right annular reinforcing steel bar frame 11; an embedded rubber water stop belt 13 is arranged in the middle of the reserved space gap 8 of the top plate deformation joint, a left wing plate 14 of the embedded rubber water stop belt 13 is clamped in the left reinforcing steel bar bayonet 10, the right wing plate 15 of the embedded rubber water stop 13 is clamped in the right steel bar bayonet 12, a lower foaming plate 16 is arranged in the top plate deformation joint reserved space gap 8 right below the embedded rubber water stop belt 13, a lower sand box 17 is arranged between the lower bottom surface of the lower foaming plate 16 and the pipe gallery top plate concrete pouring bottom template 1, a left middle lower cement cushion block 19 is arranged between the lower foaming plate 16 and the left annular reinforcing frame 9, a left lower cement mat block 18 is provided between the drag flask 17 and the left annular reinforcing cage 9, a right middle lower cement mat block 21 is provided between the lower foam board 16 and the right annular reinforcing cage 11, a right lower cement mat block 20 is arranged between the lower sand box 17 and the right annular reinforcing frame 11; an upper foaming plate 22 is arranged in the top plate deformation joint reserved space gap 8 right above the embedded rubber water stop 13, an upper sand box 23 is arranged on the upper top surface of the upper foaming plate 22, a left middle and upper cement cushion block 26 is arranged between the upper foaming plate 22 and the left annular reinforcing steel frame 9, a left upper cement cushion block 24 is arranged between the upper sand box 23 and the left annular reinforcing steel frame 9, a right middle and upper cement cushion block 27 is arranged between the upper foaming plate 22 and the right annular reinforcing steel frame 11, and a right upper cement cushion block 25 is arranged between the upper sand box 23 and the right annular reinforcing steel frame 11.

Iron sheets are arranged on the left vertical surface and the right vertical surface of the lower foaming plate 16, and iron sheets are arranged on the left vertical surface and the right vertical surface of the upper foaming plate 22; the structure of the cope flask 23 is identical to that of the drag flask 17, and the flask is composed of a box body 33 and a box cover 34, a hinge 35 is provided between one side of the box body 33 and one side of the box cover 34, a binding wire 36 is provided between the other side of the box body 33 and the other side of the box cover 34, and the box body 33 is filled with fine sand 37.

The utility model provides a construction method that underground cast in situ concrete pipe gallery roof movement joint was executed and is constructed, include and set up roof movement joint headspace gap 8 on pipe gallery roof concrete placement die block board 1, 1 tops in left pipe gallery roof concrete placement die block board of roof movement joint headspace gap 8, set up reinforcing bar net piece 3 on 2 and the roof left side of roof left side down respectively, 1 tops in pipe gallery roof concrete placement die block board on 8 right sides of roof movement joint headspace gap, set up reinforcing bar net piece 6 on 5 and the roof right side of roof right side down reinforcing bar net piece respectively, its characterized in that following step:

firstly, binding and fixing a left annular reinforcing steel bar frame 9 between a top plate left side lower reinforcing steel bar net piece 2 on the left side of a top plate deformation joint reserved space gap 8 and a top plate left side upper reinforcing steel bar net piece 3, wherein a left reinforcing steel bar bayonet 10 is arranged on the left annular reinforcing steel bar frame 9; binding and fixing a right annular reinforcing steel bar frame 11 between a top plate right lower reinforcing steel bar net piece 5 on the right side of the top plate deformation joint reserved space gap 8 and a top reinforcing steel bar net piece 6 on the right side of the top plate, wherein a right reinforcing steel bar bayonet 12 is arranged on the right annular reinforcing steel bar frame 11;

secondly, arranging the embedded rubber water stop 13 in the middle of the reserved space gap 8 of the deformation joint of the top plate, clamping a left wing plate 14 of the embedded rubber water stop 13 in the left reinforcing steel bar bayonet 10, and clamping a right wing plate 15 of the embedded rubber water stop 13 in the right reinforcing steel bar bayonet 12;

thirdly, placing a lower sand box (17) on a pipe gallery top plate concrete pouring bottom template 1 right below the middle part of the embedded rubber water stop (13), and arranging a lower foaming plate 16 between the middle part of the embedded rubber water stop (13) and the upper top surface of the lower sand box (17); arranging an iron plate on the left vertical surface of the lower foaming plate 16, fixedly cushioning a left middle lower cement cushion block 19 between the iron plate on the left vertical surface of the lower foaming plate 16 and the left annular reinforcing steel frame 9, and fixedly cushioning a left lower cement cushion block 18 between the left vertical surface of the lower sand box 17 and the left annular reinforcing steel frame 9; arranging an iron plate on the right vertical surface of the lower foaming plate 16, fixedly cushioning a right middle lower cement cushion block 21 between the iron plate on the right vertical surface of the lower foaming plate 16 and the right annular reinforcing steel bar frame 11, and fixedly cushioning a right lower cement cushion block 20 between the right vertical surface of the lower sand box 17 and the right annular reinforcing steel bar frame 11;

fourthly, arranging an upper foaming plate 22 in the reserved space gap 8 of the deformation joint of the top plate right above the embedded rubber water stop 13, arranging an upper sand box 23 on the upper top surface of the upper foaming plate 22, arranging an iron sheet on the left vertical surface of the upper foaming plate 22, arranging a left middle-upper cement cushion block 26 between the iron sheet on the left vertical surface of the upper foaming plate 22 and the left annular reinforcing frame 9, arranging a left upper cement cushion block 24 between the upper sand box 23 and the left annular reinforcing frame 9, arranging an iron sheet on the right vertical surface of the upper foaming plate 22, arranging a right middle-upper cement cushion block 27 between the iron sheet on the right vertical surface of the upper foaming plate 22 and the right annular reinforcing frame 11, and arranging a right upper cement cushion block 25 between the upper sand box 23 and the right annular reinforcing frame 11;

fifthly, firstly pouring the top plate concrete on the left side of the top plate deformation joint reserved space gap 8 to ensure that the left lower cement cushion block 18 is submerged by the height 28 of the first poured concrete layer, and then pouring the top plate concrete on the right side of the top plate deformation joint reserved space gap 8 to ensure that the right lower cement cushion block 20 is submerged by the height of the poured concrete layer; checking whether the position of the lower foam board 16 is displaced or not, and if so, adjusting the lower foam board 16 to the original position;

sixthly, pouring the top plate concrete on the left side of the reserved space gap 8 of the top plate deformation joint for the second time, enabling the height 29 of the concrete layer poured for the second time to submerge the left wing plate 14 of the embedded rubber water stop belt 13, pouring the top plate concrete on the right side of the reserved space gap 8 of the top plate deformation joint for the second time, enabling the height of the concrete layer poured for the second time to submerge the right wing plate 15 of the embedded rubber water stop belt 13, checking whether the positions of the upper foaming plate 22 and the embedded rubber water stop belt 13 are displaced or not, and adjusting the upper foaming plate 22 and the embedded rubber water stop belt 13 to the original positions if the positions are displaced;

seventhly, top plate concrete on the left side of the reserved space gap 8 of the top plate deformation joint is poured for the third time, so that the left upper cement cushion block 24 is submerged by the height 30 of the concrete layer poured for the third time, top plate concrete on the right side of the reserved space gap 8 of the top plate deformation joint is poured for the second time, and the right upper cement cushion block 25 is submerged by the height of the concrete layer poured for the third time;

and eighthly, after the top plate concrete to be poured is initially set, removing the pipe gallery top plate concrete pouring bottom formwork 1, unfastening binding wires 36 arranged between the box body 33 and the box cover 34, emptying fine sand 37 in the box body 33, taking out the lower sand box 17 and the upper sand box 23, and filling sealing paste into a groove formed after taking out the sand boxes to form an upper sealing paste strip 32 and a lower sealing paste strip 31.

The deformation joint on the two guide walls of the pipe gallery and the construction method of the deformation joint on the bottom plate are the same as the construction method of the deformation joint on the top plate, and the whole water stop belt is connected together to form a closed water stop space.

Claims (2)

1. A construction structure for a top plate deformation joint of an underground cast-in-place concrete pipe gallery comprises a pipe gallery top plate concrete pouring bottom formwork (1), wherein a top plate deformation joint reserved space gap (8) is arranged on the pipe gallery top plate concrete pouring bottom formwork (1), a top plate left side lower reinforcing mesh (2) and a top plate left side upper reinforcing mesh (3) are respectively arranged above the pipe gallery top plate concrete pouring bottom formwork (1) on the left side of the top plate deformation joint reserved space gap (8), a top plate left side split heads (4) are arranged between the top plate left side lower reinforcing mesh (2) and the top plate left side upper reinforcing mesh (3), a top plate right side lower mesh reinforcing bar (5) and a top plate right side upper reinforcing mesh (6) are respectively arranged above the pipe gallery top plate concrete pouring bottom formwork (1) on the right side of the top plate deformation joint reserved space gap (8), and a space is formed between the top plate right side lower reinforcing mesh (5) and the top plate right side upper reinforcing mesh (6), the steel bar splicing device is provided with a top plate right side split heads (7), and is characterized in that a left side annular steel bar frame (9) is arranged on the left side of a top plate deformation joint reserved space gap (8), the left side annular steel bar frame (9) is arranged between a top plate left side lower steel bar net piece (2) and a top plate left side upper steel bar net piece (3), and a left side steel bar bayonet (10) is arranged on the left side annular steel bar frame (9); a right annular reinforcing steel bar frame (11) is arranged on the right side of the reserved space gap (8) of the deformation joint of the top plate, the right annular reinforcing steel bar frame (11) is arranged between a lower reinforcing steel bar mesh (5) on the right side of the top plate and an upper reinforcing steel bar mesh (6) on the right side of the top plate, and a right reinforcing steel bar bayonet (12) is arranged on the right annular reinforcing steel bar frame (11); an embedded rubber water stop (13) is arranged in the middle of a reserved space gap (8) of a top plate deformation joint, a left wing plate (14) of the embedded rubber water stop (13) is clamped in a left reinforcing steel bar bayonet (10), a right wing plate (15) of the embedded rubber water stop (13) is clamped in a right reinforcing steel bar bayonet (12), a lower foaming plate (16) is arranged in the reserved space gap (8) of the top plate deformation joint right below the embedded rubber water stop (13), a lower sand box (17) is arranged between the lower bottom surface of the lower foaming plate (16) and a pipe gallery top plate concrete pouring bottom formwork (1), a left middle lower cement cushion block (19) is arranged between the lower foaming plate (16) and a left annular reinforcing steel bar frame (9), a left lower cement cushion block (18) is arranged between the lower foaming plate (16) and a right annular reinforcing steel bar frame (11), and a right middle lower cement cushion block (21) is arranged between the lower foaming plate (16) and the right annular reinforcing steel bar frame (9), a right lower cement cushion block (20) is arranged between the lower sand box (17) and the right annular reinforcing frame (11); an upper foaming plate (22) is arranged in a top plate deformation joint reserved space gap (8) right above the embedded rubber water stop (13), an upper sand box (23) is arranged on the upper top surface of the upper foaming plate (22), a left middle and upper cement cushion block (26) is arranged between the upper foaming plate (22) and the left annular reinforcing steel bar frame (9), a left upper cement cushion block (24) is arranged between the upper sand box (23) and the left annular reinforcing steel bar frame (9), a right middle and upper cement cushion block (27) is arranged between the upper foaming plate (22) and the right annular reinforcing steel bar frame (11), and a right upper cement cushion block (25) is arranged between the upper sand box (23) and the right annular reinforcing steel bar frame (11).

2. The underground cast-in-place concrete pipe gallery top plate deformation joint construction structure as claimed in claim 1, wherein iron sheets are arranged on the left vertical surface and the right vertical surface of the lower foaming plate (16), and iron sheets are arranged on the left vertical surface and the right vertical surface of the upper foaming plate (22); the structure of the cope flask (23) is identical to that of the drag flask (17), the cope flask is composed of a box body (33) and a box cover (34), a hinge (35) is arranged between one side of the box body (33) and one side of the box cover (34), a binding wire (36) is arranged between the other side of the box body (33) and the other side of the box cover (34), and the box body (33) is filled with fine sand (37).

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