CN217679098U - Anti structure that floats of cast-in-place concrete power tube bank rapid construction - Google Patents

Anti structure that floats of cast-in-place concrete power tube bank rapid construction Download PDF

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Publication number
CN217679098U
CN217679098U CN202221661290.0U CN202221661290U CN217679098U CN 217679098 U CN217679098 U CN 217679098U CN 202221661290 U CN202221661290 U CN 202221661290U CN 217679098 U CN217679098 U CN 217679098U
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Prior art keywords
floating
electric power
concrete
calandria
pouring
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杨凯
张峰山
李华
涂梦涛
武东辉
李双彤
邵海强
陈建华
李建厂
徐晓龙
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Zhengzhou Yijian Group Co Ltd
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Zhengzhou Yijian Group Co Ltd
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Abstract

The utility model belongs to the technical field of municipal works electric power calandria, concretely relates to anti structure of floating of quick construction of cast-in-place concrete electric power calandria, including the concrete subbase, electric power calandria and anti subassembly that floats, use earlier and prop up the template to establish to the screw rod of drawing during the use, then twist the lifting screw, adjust its length in the screw base, thereby adjust the position of anti floating frame according to actual required, with the realization to preventing floating the reinforcing bar, reinforcing bar net piece and positioning reinforcement three form anti floating frame and resist superficial, further realize resisting superficial to the electric power calandria, prevent the electric power calandria because the buoyancy of concrete to its production, the whole showy formation of pipeline group "pipe that floats" phenomenon appears, cause the whole skew of pipeline position, even cause the pipeline interface to become flexible because of inhomogeneous buoyancy, the grout, "stifled to the pipe" phenomenon appears, avoid causing very big influence to electric power calandria engineering construction quality, improve the equipment practicality.

Description

Anti structure that floats of cast-in-place concrete power tube bank rapid construction
Technical Field
The utility model belongs to the technical field of municipal works electric power calandria, concretely relates to cast-in-place concrete electric power calandria rapid construction anti-floating structure.
Background
Power engineering is one of the currently important basic projects. In urban power grid construction, the proportion of underground cable mode selected by the power line is higher and higher. Underground cable lines are laid in a plurality of ways, wherein the pipe arrangement laying way is suitable for heavy-load sections with more cables, such as motor cars and the like. The electric power calandria is formed by combining and arranging a plurality of sleeves. At present, two construction methods of the electric power calandria are available, one is a direct-buried calandria, and the other is a cast-in-place concrete calandria.
In the cast-in-place concrete pipe arrangement construction process, the traditional construction method often has the common quality problems that the pipe arrangement is not straight, the template installation is time-consuming and not firm, the template is expanded, the pipe floats and the like, and the concrete pouring is time-consuming and labor-consuming. In the concrete pouring process, the phenomenon of floating pipes due to the fact that the pipeline group floats integrally is easy to occur due to buoyancy generated by concrete, the position of the pipeline deviates integrally, even the phenomenon of pipe blocking occurs due to loosening and grouting of a pipeline interface caused by uneven buoyancy, and the construction quality of the electric power calandria engineering is greatly influenced.
SUMMERY OF THE UTILITY MODEL
The defect and the problem that exist to existing equipment, the utility model provides a cast-in-place concrete power calandria rapid construction anti-floating structure, effectual solved exist among the existing equipment because the concrete is to its buoyancy that produces, very easily appear that the whole showy formation of pipeline group is "the pipe that wafts" phenomenon, cause the whole skew of pipeline position, even cause the pipeline interface to become flexible because of inhomogeneous buoyancy, grout, appear "stifled pipe" phenomenon, cause the problem of very big influence to power calandria engineering construction quality.
The utility model provides a scheme that its technical problem adopted is: the utility model provides a cast-in-place concrete power calandria anti-floating structure of quick construction, including concrete subbase, electric power calandria and anti-floating subassembly, the concrete subbase is pour in the construction foundation trench, pre-buried positioning steel and fastening screw on the concrete subbase, and positioning steel sets up the inboard at fastening screw, the electric power calandria lays on the concrete subbase according to the design requirement layering, and sets up in the positioning steel inboard, the ligature has the reinforcing bar net piece on the electric power calandria, be provided with between reinforcing bar net piece and the positioning steel and prevent floating the reinforcing bar, the outside of preventing floating the reinforcing bar is provided with pours the template, the upper portion between two relative pouring templates is provided with the counter-pulling screw, anti-floating subassembly is installed on the counter-pulling screw, anti-floating subassembly includes fixed sleeve, screw seat and anti-floating frame, fixed sleeve dress is on the counter-pulling screw, the screw seat is fixed on the fixed sleeve, the screw seat is connected with the lifting screw, the lower extreme of lifting screw rotates and is connected with the movable sleeve, anti-floating frame is fixed on the movable sleeve, the movable sleeve is closely met with the both ends of its horizontal pole part closely with the pouring template inner wall, its montant closely meets closely.
Furthermore, an L-shaped angle steel frame is fixed on the fastening screw, a square tube is arranged on the inner side of the L-shaped angle steel frame, and the inner side of the square tube is tightly connected with the outer side of the pouring template.
Furthermore, the inboard of spacer bar is provided with the guide cylinder, and the lower extreme of preventing the reinforcing bar that floats is installed in the guide cylinder, and the outside of spacer bar is provided with the kicking block.
Furthermore, install the stopcock in the electric power calandria mouth of pipe, prevent that foreign matter such as silt from getting into intraductally.
Furthermore, the pouring templates adopt plywood, the plywood is assembled according to the pouring thickness before erection, and the assembling height is slightly larger than the pouring height of the concrete.
The construction of the power grid specifically comprises the following steps:
1. survey lofting
And measuring and setting out the construction site, lofting by using a GPS (global positioning system) according to the coordinate point and the level point, and closing the elevation datum point, wherein the closing difference meets the standard requirement. In the embodiment, the construction of the power calandria is started after the cable well is poured, the power calandria is reserved on the side wall of the cable well and goes deep into the hole, the middle point of the reserved hole is led to the ground, the GPS is used for linear lofting, and the middle line is marked by lime after being discharged.
2. Trench excavation
And (3) excavating the groove by adopting construction machinery, clearing the groove by manual cooperation after mechanical excavation, and performing partition and subsection construction according to the excavation sequence according to the construction site condition. The groove excavation is performed to slope according to design requirements, working surfaces of 1m are reserved on two sides of the calandria, trapezoidal section excavation is adopted in groove construction, the designed elevation of the groove bottom is strictly controlled during excavation, and manual bottom cleaning for 10cm is reserved in mechanical excavation. And after the foundation trench is opened, detecting the bearing capacity of the foundation in time, and entering the next construction if the detection value meets the design requirement. And (5) well performing foundation pit drainage work during excavation. The drainage of surface water and the pumping drainage of accumulated water in the foundation pit are considered before and during construction, and the construction of the concrete foundation in a waterless environment is ensured.
3. Pouring reinforced concrete foundation
Before concrete construction, leveling the bottom of the groove, discharging the center line of the groove, binding foundation steel bars, and pouring according to the designed foundation thickness and width, wherein the design label of concrete is C20, the impermeability grade is not lower than P6, and the pouring thickness is 10cm; t-shaped phi 12 steel bars are welded at the positions 15cm away from the two inner sides of the edge of the foundation from one end to the other end every other 3 meters, and fastening screws are embedded at the positions 3cm away from the inner sides of the edge of the foundation from one end to the other end every other 2 meters; when pouring, the bottom plate of the groove is required to be inclined towards the drainage direction by 3 per mill so as to facilitate drainage of the cable trench, and the bottom plate of the groove is vibrated according to requirements until the bottom plate of the groove is completely compact; and finishing after pouring, and maintaining in time to ensure the strength of the concrete.
4. Electric power calandria lays
Before the electric calandria is laid, the calandria is manually placed into the groove. To putting the slot of slope excavation, set up the steel pipe at the slot edge with certain slope, tie pipe shaft both ends with non-metallic rope, keep pipe shaft balance evenly to put to the slot through the steel pipe, prevent that misoperation from causing the pipe fracture. In order to reduce the buried depth as much as possible and meet the earthing condition, the power calandria is stacked on the pipe pillow according to three layers. When the pipe sleepers are laid, the center lines are found out according to the positioning steel bars, the pipe sleepers are placed at intervals of 2 m according to design requirements, the pipe arrangement starts to be laid from one end to the other end, joints of each section are arranged in a staggered mode, and tight connection is guaranteed. At two ends of the laid calandria, each pipe opening needs to be temporarily plugged by a pipe plug, so that foreign matters such as silt can be prevented from entering the pipe. When the end of the calandria enters the cable well, a gap between the calandria and the wall of the cable well needs to be filled with a soft and corrosion-resistant material, so that the cable well and the calandria are prevented from being damaged when different settlement occurs.
5. Provided with anti-floating devices
And after the electric calandria is laid, binding a layer of reinforcing mesh at the top of the calandria according to the design requirements of the drawing. The cushion blocks are arranged on the calandria, and the steel bar net piece is placed on the cushion blocks to avoid direct contact with the calandria. The embedded positioning steel bars and the steel bar meshes are welded up and down by the phi 14 steel bars to form a whole body to be fixed on a concrete foundation, so that the power grid pipe is prevented from floating upwards when concrete is poured.
6. Setting and reinforcing pouring template
The pouring templates adopt plywood, the plywood is assembled according to the pouring thickness before being erected, the assembling height is slightly larger than the pouring height of concrete, the templates are reinforced in advance by using 40-80 square timber vertical center spacing of 25cm, and the templates are prevented from laterally deforming. The angle steel is L80X 50X 5 type angle steel with the length of 20cm, bolt holes are formed in two ends of the short side of the angle steel, the bolt holes penetrate through the embedded screws and then are firmly fixed through nuts, and meanwhile, a 50X 50 through rectangular pipe is arranged on the back of the angle steel in an attached mode. When the template is erected, the lower end is vertically erected tightly attached to the square pipe, the lower part is fixed by an angle steel top support during reinforcement, and the upper end position above a concrete pouring surface is fixed by a counter-pulling screw rod matched with a steel pipe in a counter-pulling mode. The joints of the templates need to be tight, slurry cannot leak, and the pouring height is controlled by the elastic lines on the inner sides of the templates.
7. Cable shaft reserved hole plugging
The hole is inconvenient to reinforce and support due to the limited space in the cable well, and the reserved hole for the power drainage pipe to enter the cable well is plugged by a regularized steel plate. As shown in fig. 2, when the side wall formwork of the cable well is reinforced, 6 counter-pulling screws are arranged on two sides and the upper part and the lower part of the opening of the well chamber, the counter-pulling screws can take the effect of reinforcing the formwork when the cable well is poured, and the counter-pulling screws can also be used as screws for fixing steel plates when the side wall formwork of the cable well is removed. After the end of the calandria extends into the hole and the gap between the calandria and the cable well wall is filled, a shaped steel plate with the thickness of 3mm and provided with corresponding screw holes penetrates through the reserved screw and is fixed on the inner wall of the well chamber by nuts, and meanwhile, the screw and the steel plate are welded by a phi 14 steel bar, so that the lateral rigidity of the steel plate is ensured while the steel plate is further reinforced. The steel form can be removed by tapping with a small hammer when being detached.
8. Pouring encapsulated concrete
The movable pouring chute is adopted for layered and segmented pouring, the chute is formed by processing and manufacturing field materials, and the movable pouring chute can move rapidly according to the pouring position and can efficiently and rapidly pour concrete. The concrete layered casting thickness is 40mm, and the concrete slump is controlled to be 60-80 mm. When pouring, two sides are simultaneously carried out, so that the pipe is prevented from being extruded and deflected. The insertion type vibrator is adopted to fill the gaps among the pipelines with concrete. And after the first layer is poured, pouring a second layer of concrete, and constructing until the top of the encapsulating layer is 100mm according to the method. And (5) after molding, watering the plastic film for curing.
9. Trench backfill
And (4) backfilling the grooves, mainly mechanically and manually matching. Each layer of backfill virtual pavement within 50cm of the pipe top is 20cm in thickness, manual compaction is carried out, and the compactness meets the design requirement; and backfilling the pipe top by more than 50cm to a pavement structure layer, wherein the backfilling virtual pavement thickness of each layer is 30-40cm, and mechanically tamping, so that the compactness also meets the design requirement.
The device can effectively solve the common problems of floating quality and the like of pipes due to the fact that the pipes are not straight in installation, time-consuming and infirm in template installation, and template expansion during concrete pouring, and meanwhile, the construction efficiency can be improved by utilizing the movable pouring chute, and the construction cost and the construction period are saved while the construction quality is guaranteed.
The utility model has the advantages that: the utility model discloses in the installation of mainly used electric power calandria, cooperation through concrete subbase and electric power calandria sets up, pour the concrete subbase at the construction foundation ditch internal at first during the use, simultaneously pre-buried positioning bar and fastening screw on the concrete subbase, then lay the electric power calandria on the concrete subbase according to the designing requirement layering, reinforcing bar net piece ligature is on the electric power calandria, prevent floating reinforcement and install reinforcing bar net piece and positioning bar, set up like this and prevent floating reinforcement, reinforcing bar net piece and positioning bar three form anti-floating frame, avoid the electric power calandria floating phenomenon to appear.
Through setting up anti subassembly that floats, use earlier when using to drawing the screw rod to prop up the template of pouring and establish, then twist and move lifting screw, adjust its length in the spiral shell seat, thereby adjust the position of anti floating frame according to actual required, with the realization to preventing floating the reinforcing bar, reinforcing bar net piece and positioning bar three form anti floating frame and carry out anti superficial, further realize resisting superficial to the electric power calandria, prevent that the electric power calandria from because the concrete is to its buoyancy that produces, the whole showy formation "pipe that floats" phenomenon of pipeline group appears, cause the whole skew of pipeline position, cause the pipeline interface to become flexible because of inhomogeneous buoyancy even, grout, "stifled pipe" phenomenon appears, avoid causing very big influence to electric power calandria engineering construction quality, improve equipment practicality.
The L-shaped angle steel frame is matched with the square tube, the inner side of the square tube is closely connected with the outer side of the pouring template, and the pouring template can be supported more stably and safely by matching the L-shaped angle steel frame; through the cooperation setting of guide cylinder and kicking block, the guide cylinder avoids preventing that the showy reinforcing bar takes place the skew for the installation of preventing the showy reinforcing bar provides guiding orientation, and the kicking block is pushing up and is pouring the template, erects for pouring the template and provide the support protection.
Therefore, the utility model discloses novel structure, at first pour the concrete subbase in the construction foundation ditch during use, simultaneously pre-buried positioning bar and fastening screw on the concrete subbase, then lay the power calandria on the concrete subbase according to the design requirement layering, reinforcing bar net piece ligature is on the power calandria, anti-floating reinforcing bar installs reinforcing bar net piece and positioning bar, set up anti-floating reinforcing bar like this, reinforcing bar net piece and positioning bar three form anti-floating frame, avoid the power calandria to appear showy phenomenon, use earlier to draw the screw rod to prop up the template of pouring during the use, then twist the lifting screw, adjust its length in the screw seat, thereby adjust the position of anti-floating frame according to actual required, in order to realize to anti-floating reinforcing bar, reinforcing bar net piece and positioning bar three form anti-floating frame and carry out anti-floating, further realize carrying out anti-floating to the power calandria, prevent that the power calandria from because the buoyancy that the concrete produced to it, the whole showy of appearance forms "pipe" calandria "phenomenon of floating", cause the whole skew of pipeline position, even because of inhomogeneous causes the pipeline interface not hard up, the phenomenon appears, "the pipe blocking" grouting, avoid greatly influencing the construction quality, the improvement of construction equipment.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 3 is the utility model discloses well cable shaft reserves the main structure schematic diagram of entrance to a cave shutoff.
The reference numbers in the figures are: the concrete foundation is 1, 2 is the electric power calandria, 3 is the locating reinforcement, 4 is fastening screw, 5 is the reinforcing bar net piece, 6 is the reinforcing bar that floats, 7 is the pouring template, 8 is the counter-pull screw rod, 9 is the fixed sleeve, 10 is the spiral shell seat, 11 is anti-floating frame, 12 is the lifting screw, 13 is the movable sleeve, 14 is L type angle steelframe, 15 is the side's pipe, 16 is the guide cylinder, 17 is the kicking block.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1: this embodiment aims at providing a quick construction anti structure that floats of cast-in-place concrete power conduit, mainly used is in the installation work of power conduit, so that solve at present exist because the concrete is to its buoyancy that produces, very easily appear that the whole showy formation of pipeline group "floats the pipe" phenomenon, cause the whole skew of pipeline position, even cause the pipeline interface to become flexible because inhomogeneous buoyancy, the grout, "stifled pipe" phenomenon appears, cause the problem of very big influence to power conduit engineering construction quality, based on this, this embodiment is mainly to anti structure that floats, anti superficial subassembly has been set up.
In a concrete structure, as shown in fig. 1-2, a cast-in-place concrete power grid rapid construction anti-floating structure comprises a concrete substrate 1, a power grid 2 and an anti-floating assembly, wherein the concrete substrate 1 is poured in a construction foundation trench, a positioning steel bar 3 and a fastening screw 4 are pre-embedded on the concrete substrate 1, the positioning steel bar 3 is arranged on the inner side of the fastening screw 4, the power grid 2 is laid on the concrete substrate 1 in layers according to design requirements and is arranged on the inner side of the positioning steel bar 3, a steel bar net piece 5 is bound on the power grid 2, and an anti-floating steel bar 6 is arranged between the steel bar net piece 5 and the positioning steel bar 3; through the cooperation setting of concrete subbase 1 and electric power calandria 2, at first pour concrete subbase 1 in the construction foundation ditch during use, pre-buried positioning bar 3 and fastening screw 4 on concrete subbase 1 simultaneously, then lay electric power calandria 2 on concrete subbase 1 according to the designing requirement layering, reinforcing bar net piece 5 ligature is on electric power calandria 2, prevent floating reinforcing bar 6 and install at reinforcing bar net piece 5 and positioning bar 3, set up like this and prevent floating reinforcing bar 6, reinforcing bar net piece 5 and positioning bar 3 three form anti-floating frame, avoid electric power calandria 2 to appear floating phenomenon.
The outer side of the anti-floating steel bar 6 is provided with a pouring template 7, the upper part between two opposite pouring templates 7 is provided with a split screw 8, an anti-floating component is arranged on the split screw 8 and comprises a fixed sleeve 9, a screw seat 10 and an anti-floating frame 11, the fixed sleeve 9 is sleeved on the split screw 8, the screw seat 10 is fixed on the fixed sleeve 9, the screw seat 10 is in threaded connection with a lifting screw 12, the lower end of the lifting screw 12 is rotatably connected with a movable sleeve 13, the anti-floating frame 11 is fixed on the movable sleeve 13, two ends of a transverse rod part of the anti-floating frame are tightly connected with the inner wall of the pouring template 7, and a vertical rod part of the anti-floating frame is tightly connected with a steel bar net piece 5; through setting up anti floating assembly, use earlier during the use and prop up pouring template 7 and establish, then twist lifting screw 12, adjust its length in screw seat 10, thereby adjust anti position of floating frame 11 according to actual required, with the realization to anti floating reinforcing bar 6, reinforcing bar net piece 5 and 3 three formation anti floating frames of positioning reinforcement carry out anti floating, further realize carrying out anti floating to electric power calandria 2, prevent electric power calandria 2 because the buoyancy of concrete to its production, the whole showy formation "pipe that floats" phenomenon of pipeline group appears, cause the whole skew of pipeline position, even cause the pipeline interface to become flexible because of inhomogeneous buoyancy, the grout, "stifled pipe" phenomenon appears, avoid causing very big influence to electric power calandria 2 engineering construction quality, improve equipment practicality.
In the embodiment, through the matching arrangement of the concrete substrate 1 and the electric power calandria 2, when the device is used, the concrete substrate 1 is firstly poured in the construction base groove, meanwhile, the positioning steel bars 3 and the fastening screw rods 4 are pre-embedded on the concrete substrate 1, then the electric power calandria 2 is laid on the concrete substrate 1 layer by layer according to the design requirement, the steel bar net piece 5 is bound on the electric power calandria 2, the anti-floating steel bars 6 are arranged on the steel bar net piece 5 and the positioning steel bars 3, the anti-floating steel bars 6, the steel bar net piece 5 and the positioning steel bars 3 are arranged in such a way to form an anti-floating frame, the floating phenomenon of the electric power calandria 2 is avoided, when the device is used, the counter-pulling screw rods 8 are firstly used for erecting the pouring template 7, then twist lifting screw 12, adjust its length in screw seat 10, thereby adjust the position of anti floating frame 11 according to actual required, in order to realize preventing floating reinforcing bar 6, reinforcing bar net piece 5 and 3 three formation anti floating frame of spacer bar resist superficial, further realize resisting superficial to electric power calandria 2, prevent electric power calandria 2 because the concrete to the buoyancy of its production, the whole showy formation "pipe that floats of pipeline group appears, cause the whole skew of pipeline position, even cause the pipeline interface to become flexible because of inhomogeneous buoyancy, the grout," stifled pipe "phenomenon appears, avoid causing very big influence to electric power calandria 2 engineering construction quality, improve equipment practicality.
Example 2: this example is substantially the same as example 1, except that: the embodiment further describes the specific structure of the fastening screw 4.
In the specific structure, as shown in fig. 1-2, an L-shaped angle steel frame 14 is fixed on a fastening screw 4, a square tube 15 is arranged on the inner side of the L-shaped angle steel frame 14, and the inner side of the square tube 15 is tightly connected with the outer side of a pouring template 7; through the cooperation setting of L type angle steelframe 14 and square pipe 15, the square pipe 15 inboard closely meets with pouring the template 7 outside, and cooperation L type angle steelframe 14 can make the propping up of pouring template 7 establish more firm safety.
The inner side of the positioning steel bar 3 is provided with a guide cylinder 16, the lower end of the anti-floating steel bar 6 is arranged in the guide cylinder 16, and the outer side of the positioning steel bar 3 is provided with a top block 17; through the cooperation setting of guide cylinder 16 and kicking block 17, guide cylinder 16 provides guiding orientation for preventing the installation of floating reinforcing bar 6, avoids preventing floating reinforcing bar 6 to take place the skew, and kicking block 17 is pushing up pouring template 7, props up to establish for pouring template 7 and provides the support protection.
The pipe plug is arranged in the pipe orifice of the electric power calandria 2 to prevent foreign matters such as silt from entering the pipe, the pouring template 7 is made of plywood, the plywood is assembled according to the pouring thickness before erection, and the assembling height is slightly larger than the pouring height of concrete
Example 3: this example is substantially the same as example 1, except that: the present embodiment further describes the specific structure of the power line bank-pipe 2.
Because the space in the cable well is limited, the hole is inconvenient to reinforce and support, and the reserved hole of the power grid 2 entering the cable well is blocked by adopting a shaped steel plate. As shown in fig. 3, when the cable well side wall formwork is reinforced, six counter-pulling screws 8 are arranged on two sides and at the upper part and the lower part of the opening of the well chamber, and the counter-pulling screws 8 can take the effect of reinforcing the formwork when the cable well is poured, and can also be used as screws for fixing steel plates when the cable well side wall formwork is dismantled. After the end of the calandria extends into the hole and the gap between the calandria and the cable well wall is filled, the shaped steel plate with the thickness of 3mm and provided with the corresponding screw holes penetrates through the reserved screw and is fixed on the inner wall of the well chamber by the nut, the screw and the steel plate are welded by the phi 14 steel bar 2, the lateral rigidity of the steel plate is further guaranteed while the steel plate is reinforced, and the steel plate can be detached by tapping with a small hammer when the steel plate is detached.

Claims (5)

1. The utility model provides an anti structure that floats of cast-in-place concrete power tube rapid construction which characterized in that: the anti-floating device comprises a concrete base, an electric power calandria and an anti-floating assembly, wherein the concrete base is poured in a construction foundation groove, positioning steel bars and fastening screws are pre-buried on the concrete base, the positioning steel bars are arranged on the inner sides of the fastening screws, the electric power calandria is laid on the concrete base in layers according to design requirements and arranged on the inner sides of the positioning steel bars, a steel bar mesh is bound on the electric power calandria, anti-floating steel bars are arranged between the steel bar mesh and the positioning steel bars, pouring templates are arranged on the outer sides of the anti-floating steel bars, opposite pull screws are arranged on the upper portions between two opposite pouring templates, the anti-floating assembly is installed on the opposite pull screws, the anti-floating assembly comprises a fixing sleeve, a screw seat and an anti-floating frame, the fixing sleeve is sleeved on the opposite pull screws, the screw seat is fixed on the fixing sleeve, lifting screws are connected with the screw in the screw seat in a threaded manner, a movable sleeve is rotatably connected to the lower end of the lifting screws, the anti-floating frame is fixed on the movable sleeve, two ends of a cross rod portion of the anti-floating frame are closely connected with the inner walls of the pouring templates, and a vertical rod portion of the anti-floating frame is closely connected with the steel bar mesh.
2. The cast-in-place concrete power grid rapid construction anti-floating structure of claim 1, characterized in that: an L-shaped angle steel frame is fixed on the fastening screw, a square tube is arranged on the inner side of the L-shaped angle steel frame, and the inner side of the square tube is tightly connected with the outer side of the pouring template.
3. The cast-in-place concrete power grid rapid construction anti-floating structure of claim 1, characterized in that: the inboard of spacer bar is provided with the guide cylinder, and the lower extreme of preventing the reinforcing bar that floats is installed in the guide cylinder, and the outside of spacer bar is provided with the kicking block.
4. The cast-in-place concrete power grid rapid construction anti-floating structure of claim 1, characterized in that: the pipe plug is arranged in the pipe orifice of the power pipe bank to prevent foreign matters such as silt from entering the pipe.
5. The cast-in-place concrete power grid rapid construction anti-floating structure of claim 1, characterized in that: the pouring template is made of plywood, the plywood is assembled according to the pouring thickness before erection, and the assembling height is slightly larger than the pouring height of concrete.
CN202221661290.0U 2022-06-30 2022-06-30 Anti structure that floats of cast-in-place concrete power tube bank rapid construction Active CN217679098U (en)

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CN202221661290.0U CN217679098U (en) 2022-06-30 2022-06-30 Anti structure that floats of cast-in-place concrete power tube bank rapid construction

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