CN218757592U - Pre-assembled electric power gallery structure - Google Patents
Pre-assembled electric power gallery structure Download PDFInfo
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- CN218757592U CN218757592U CN202120533296.9U CN202120533296U CN218757592U CN 218757592 U CN218757592 U CN 218757592U CN 202120533296 U CN202120533296 U CN 202120533296U CN 218757592 U CN218757592 U CN 218757592U
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Abstract
The utility model relates to an electric power engineering technical field, concretely relates to assemble electric power corridor structure in advance. Including being used for the prefabricated tube coupling of a plurality of be connected with the cast-in-place corridor in both ends, a plurality of through vertical locking member sealing connection between the prefabricated tube coupling, prefabricated tube coupling with through movement joint sealing device sealing connection between the cast-in-place corridor. And a precast concrete assembling mode is adopted, so that large-scale formwork erection and pouring are avoided, and the construction period can be effectively shortened. The prefabricated section is connected with the cast-in-place section through a deformation joint water stopping device, and the technical problem of water prevention at the deformation joint of the underground engineering structure is solved.
Description
Technical Field
The utility model relates to an electric power engineering technical field, concretely relates to assemble electric power corridor structure in advance.
Background
The concrete power corridor structural style commonly used at present is top cable trench cover plate, lateral wall and bottom plate cast in situ concrete, and the cable pit of this kind of structural style is mainly applicable to under the pavement, the newly-built highway section that the cross pipeline is less on every side, and the old urban area reforms transform the pipeline complicacy under the people's road in the engineering, excavates the difficulty, and cast in situ concrete construction cycle is long, can't satisfy the engineering demand.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a to prior art's defect, provide an assemble electric power corridor structure in advance, its construction convenience, construction cycle is short, and can solve the waterproof problem of movement joint between the road under the adjacent water road prefabricated construction and the cast-in-place structure.
The utility model discloses technical scheme includes: including being used for the prefabricated tube coupling of a plurality of be connected with the cast-in-place corridor in both ends, a plurality of through vertical locking member sealing connection between the prefabricated tube coupling, prefabricated tube coupling with through movement joint sealing device sealing connection between the cast-in-place corridor.
Comparatively preferred, movement joint sealing device includes trapezoidal rubber pad, pre-buried steel sheet, hold-down member and gland nut, pre-buried steel sheet buries in the inside and outside both sides of movement joint underground, trapezoidal rubber pad through hold-down member and with gland nut complex gland nut seals to set up on the pre-buried steel sheet in the movement joint outside, hold-down member sets up in the movement joint, hold-down member one end inlays to be located in the trapezoidal rubber pad, the other end pass the inboard pre-buried steel sheet of movement joint and with gland nut threaded connection.
Comparatively preferred, hold-down member includes first compress tightly steel sheet, second and compresses tightly steel sheet and a plurality of lead screws along deformation joint length direction evenly distributed, first compress tightly the steel sheet level and inlay and locate in the trapezoidal rubber pad, the second compresses tightly the steel sheet and sets up between pre-buried steel sheet and gland nut, the lead screw set up in the deformation joint, lead screw one end with first compress tightly steel sheet swing joint, the other end pass in proper order deformation joint inboard pre-buried steel sheet, rubber pad, second compress tightly the steel sheet and with gland nut threaded connection.
Preferably, a fixing shaft is arranged in the first compression steel plate along the length direction of the deformation seam, and one end of the screw rod is sleeved on the fixing shaft and can rotate around the fixing shaft.
Preferably, the deformation joint water stopping device further comprises a connection tenon, the connection tenon is embedded in the trapezoidal rubber pad and symmetrically arranged on two sides of the deformation joint, and the connection tenon is a plate-shaped component extending along the length direction of the deformation joint.
Preferably, the width of the strip-shaped protruding part is smaller than that of the sealing groove.
Preferably, the longitudinal locking member comprises a tension box, a prestressed connecting steel bar and an anchoring nut, the tension box is embedded in the wall of the prefabricated pipe sections, the adjacent prefabricated pipe sections are connected through the prestressed connecting steel bar, and two ends of the prestressed connecting steel bar respectively extend into the two adjacent prefabricated pipe sections and are locked and arranged in the tension box through the anchoring nut.
Preferably, the longitudinal locking member comprises a tension box, a prestressed connecting steel bar and an anchoring nut, the tension box is embedded in the wall of the prefabricated pipe joint, and two ends of the prestressed connecting steel bar respectively extend into the two adjacent prefabricated pipe joints and are locked in the tension box through the anchoring nut.
Preferably, each prefabricated pipe joint is provided with a socket at one end, a socket matched with the socket is arranged at the other end, and a sealing rubber ring is arranged between the socket and the socket.
Preferably, the expansion boxes are multiple and are uniformly distributed around the prefabricated pipe joints.
The utility model has the advantages that:
1. and a precast concrete assembling mode is adopted, so that large-scale formwork erection and pouring are avoided, and the construction period can be effectively shortened. The prefabricated section is connected with the cast-in-place section through a deformation joint water stopping device, and the technical problem of water prevention at the deformation joint of the underground engineering structure is solved. The electric power gallery can be arranged under the roadway, and the technical problems that the old road is limited by widening engineering conditions and the sidewalk cannot be excavated are solved.
2. Deformation joint sealing device adopts trapezoidal rubber pad, pre-buried steel sheet, hold-down member and gland nut, through the cooperation of gland nut and lead screw, compresses tightly trapezoidal rubber pad on pre-buried steel sheet, and is sealed effectual.
3. Set up strip bulge in trapezoidal rubber pad bottom to set up in strip bulge complex sealed recess on pre-buried steel sheet, through the interference fit of both under the compression state, further strengthen the sealed effect of movement joint department.
4. The end part of the screw rod is rotatably connected with the first compression steel plate, so that the screw rod can swing around the first compression steel plate along the width direction of the deformation seam, stable pulling force is always provided by the screw rod, and the compactness of the trapezoidal rubber pad is ensured. Meanwhile, when the structures on the two sides are not uniformly settled, the width of the groove is slightly larger than that of the rubber pad, so that the rubber pad is allowed to generate certain dislocation, and the optimal waterproof state is always kept.
5. And the adjacent prefabricated pipe joints are longitudinally locked by adopting a tension box and an anchoring nut to match with a prestressed connecting steel bar, so that the vertical end surfaces of the prefabricated pipe joints are axially pressed, and the sealing performance between the prefabricated pipe joints is ensured by matching with the socket, the socket and the sealing rubber ring.
Drawings
FIG. 1 is a schematic view of the connection between a cast-in-place gallery and a prefabricated pipe section of the present invention;
FIG. 2 is a schematic view of the connection of the prefabricated pipe joints of the present invention;
FIG. 3 is a schematic view of the connection three-dimensional structure of the cast-in-place gallery and the prefabricated pipe joints of the present invention;
FIG. 4 is an enlarged schematic view of the deformation joint water stop device of the present invention;
fig. 5 is a schematic view of the pressing member of the present invention;
FIG. 6 is a schematic view of the three-dimensional structure of the prefabricated pipe joint of the present invention;
FIG. 7 is a side view of the prefabricated pipe joint of the present invention;
FIG. 8 isbase:Sub>A sectional view taken along line A-A of FIG. 7;
FIG. 9 is a sectional view taken along line B-B of FIG. 7;
FIG. 10 is a schematic diagram of excavation of a steel sheet pile foundation pit of the power gallery.
In the figure: 1-embedded sleeve, 2-ground lead-out steel plate, 3-tensioning box, 4-socket, 5-socket, 6-embedded nut, 7-PVC pipe, 8-hanging ring, 9-first compression steel plate, 10-second compression steel plate, 11-deformation joint, 12-connection tenon, 13-trapezoidal rubber pad, 14-sealing groove, 15-embedded steel plate, 16-rubber pad, 17-screw rod, 18-foaming rubber, 19-compression nut, 20-deformation joint water stop device, 21-steel waist beam, 22-steel plate pile, 23-cushion layer, 24-sealing rubber ring, 25-anchoring nut, 26-strip bulge, 27-prestress connecting steel bar, 28-prefabricated pipe joint, 29-cast-in-place gallery and 30-fixing shaft.
Detailed Description
The invention will be further described in detail with reference to the drawings and the following detailed description, which are provided for the purpose of clearly understanding the invention and are not intended to limit the invention.
As shown in figures 1 and 2, the electric power corridor structure of this scheme of assembling in advance adopts prefabricated tube coupling to assemble the structure, and its tube coupling major structure adopts C35 from waterproof concrete, and the constructional reinforcement adopts HRB400E. A plurality of prefabricated pipe sections 28 are connected in a sealing mode through longitudinal locking components, and the prefabricated pipe sections 28 are connected with two sections of cast-in-situ galleries 29 in a sealing mode through deformation joint water stopping devices 20.
As shown in fig. 3 to 5, the deformation joint water stopping device 20 includes a trapezoidal rubber pad 13, an embedded steel plate 15, a pressing member, and a pressing nut 19. The embedded steel plates 15 are embedded at the inner side and the outer side of the deformation joint 11, and the wider end of the trapezoidal rubber pad 13 is the inner side and the narrower end is the outer side. Trapezoidal rubber pad 13 through hold-down element with hold-down element complex gland nut 19 seal set up on the pre-buried steel sheet 15 in the movement joint 11 outside, hold-down element sets up in movement joint 11, in hold-down element one end is inlayed and is located trapezoidal rubber pad 13, the other end pass in proper order movement joint 11 inboard pre-buried steel sheet 15, rubber pad 16, second gland plate 10 and with gland nut 19 threaded connection.
The pressing component comprises a first pressing steel plate 9, a second pressing steel plate 10 and a plurality of screw rods 17 which are uniformly distributed along the length direction of the deformation joint 11, the first pressing steel plate 9 is horizontally embedded in the trapezoidal rubber pad 13, and the second pressing steel plate 10 is arranged between the embedded steel plate 15 and the rubber pad 16 and is pressed tightly through a pressing nut 19. A plurality of lead screw 17 parallel arrangement in movement joint 11, lead screw 17 one end and first compress tightly steel sheet 9 swing joint, pass in proper order the inboard pre-buried steel sheet 15 of movement joint 11, rubber pad 16, second compress tightly steel sheet 10 and with gland nut 19 threaded connection.
A rectangular lower groove is formed in the first compression steel plate 9 along the length direction of the deformation joint 11, a fixing shaft 30 with the length direction identical to that of the rectangular lower groove is arranged in the rectangular lower groove, a through hole matched with the fixing shaft 30 is formed in one end of the screw rod 17, the screw rod 17 is sleeved on the fixing shaft 30 and can rotate around the fixing shaft 30, and the screw rod 17 is matched to rotate when pipe joints at two ends of the deformation joint are not uniformly settled so as to guarantee stable tension of the screw rod 17. The deformation joint 11 is filled with foaming rubber 18.
The deformation joint water stopping device 20 further comprises a connecting tenon 12, the connecting tenon 12 is embedded in the trapezoidal rubber gasket 13 and symmetrically arranged on two sides of the deformation joint 11, and the connecting tenon 12 is a plate-shaped component extending along the length direction of the deformation joint 11. The trapezoidal rubber gasket 13 is further pressed on the embedded steel plate 15 under the action of the compression nut 19, and sealing is guaranteed.
One side of trapezoidal rubber pad 13 towards pre-buried steel sheet 15 is equipped with a plurality of strip bulges 26, and strip bulges 26 symmetric distribution is in movement joint 11 both sides, and pre-buried steel sheet 15 is equipped with sealed recess 14 in the position department that corresponds with strip bulges 26, sealed recess 14 and strip bulges 26 interference fit. The width of the strip-shaped projection 26 is smaller than the width of the sealing groove 14. When the structures on both sides are not uniformly settled, the width of the sealing groove 14 is slightly larger than that of the strip-shaped bulge 26, so that the strip-shaped bulge 26 is allowed to generate certain dislocation, and the optimal waterproof state is always kept. Even if a small amount of water enters the deformation joint, the rubber pad 16 is tightly attached to the steel plate pre-embedded in the structure under the common pressure of the screw rod 17 and the compression nut 19, and a second waterproof layer can be formed.
As shown in fig. 6 to 9, the top of the standard prefabricated pipe section 28 is provided with an embedded sleeve 1, and the upper part of the side wall is provided with a grounding lead-out steel plate 2. The expansion box 3 is arranged in the center of the prefabricated pipe section 28 at four corners, one end of the prefabricated pipe section 28 is provided with a socket 4, the other end of the prefabricated pipe section is provided with a socket 5 matched with the socket 4, and a sealing rubber ring 24 is arranged between the socket 4 and the socket 5. M16 embedded nuts 6 are uniformly arranged on the inner wall of the prefabricated pipe joint 28 and used for hoisting internal devices. PVC pipes 7 are embedded at two ends of the tension box 3, and 4 hanging rings 8 are arranged at the top of the outer part of the pipe joint and used for hoisting the prefabricated pipe joint 28. The prefabricated pipe sections 28 are assembled in a longitudinal locking mode.
The longitudinal locking component comprises a tension box 3, prestress connecting steel bars 27 and anchoring nuts 25, the tension box 3 is embedded in the wall of each prefabricated pipe joint 28, the adjacent prefabricated pipe joints 28 are connected through the prestress connecting steel bars, and the two ends of each prestress connecting steel bar extend into the two adjacent prefabricated pipe joints 28 respectively and are locked and arranged in the tension box 3 through the anchoring nuts 25.
In the embodiment, phi 25 prestressed threaded steel bars are used for connection in the tensioning box 3, the tensioning stress control value delta =400N/mm < 2 >, and the end faces of the socket 4 and the socket 5 are sealed by a double-rubber-ring butyl putty rubber composite sealing ring.
As shown in FIG. 10, the construction process of the pre-assembled electric power gallery structure adopting the prefabricated pipe sections for assembling the structure is as follows:
step 1: a steel sheet pile 22 foundation pit is adopted for excavation, the steel waist beam 21 and the steel sheet pile 22 are connected in a welding mode, after the foundation pit is completed, a cushion layer 23 is constructed, and the upper surface of the cushion layer is kept smooth.
Step 2: and (4) prefabricating the standard pipe sections, and performing partition and subsection flow construction, cross operation, hoisting and laying according to the construction mileage pile number.
And step 3: the prefabricated pipe sections are installed by adopting longitudinal locking socket joints, and an anchoring nut 25, an anchoring gasket and a locking phi 25 prestressed threaded steel bar are adopted in the tension box 3. The tensioning is symmetrical and uniform, so that the vertical end face of the prefabricated pipe joint is tightly jacked along the axial direction, the sealing rubber ring 24 is tightly attached to the concrete base layer in the reserved groove, the frame is formed by annular wrapping, and the designed compression ratio is achieved after the tensioning.
And 4, step 4: prefabricated tube coupling 28 sets up novel movement joint sealing device with cast-in-place department, and is sealed with pre-buried steel sheet through nut locking trapezoidal rubber pad, the surface sets up waterproofing membrane, and the waterproof layer wraps up the structure upstream face in succession, and seam crossing adopts the foaming adhesive to inlay and fills.
And 5: and earth backfilling is carried out in time, the exposure time of the foundation pit is reduced, backfilling materials on the upper part of the top plate are tamped manually in a layered mode, compactness detection is carried out after compaction, and backfilling can be carried out continuously after requirements are met.
Details not described in this specification are within the skill of the art that are well known to those skilled in the art.
Claims (9)
1. The utility model provides a pre-assembled electric power corridor structure which characterized in that: the prefabricated pipe sections are connected with cast-in-place galleries (29) at two ends in a sealing mode through longitudinal locking components, and the prefabricated pipe sections (28) are connected with the cast-in-place galleries (29) in a sealing mode through deformation joint water stopping devices (20);
movement joint sealing device (20) include trapezoidal rubber pad (13), pre-buried steel sheet (15), hold-down member and gland nut (19), pre-buried steel sheet (15) are buried underground in movement joint (11) both sides inside and outside, trapezoidal rubber pad (13) through hold-down member and with gland member complex gland nut (19) are sealed to be set up on pre-buried steel sheet (15) in movement joint (11) the outside, hold-down member sets up in movement joint (11), hold-down member one end inlays to be located in trapezoidal rubber pad (13), the other end pass movement joint (11) inboard pre-buried steel sheet (15) and with gland nut (19) threaded connection.
2. The pre-assembled power gallery structure of claim 1, wherein the pressing member includes a first pressing steel plate (9), a second pressing steel plate (10) and a plurality of lead screws (17) uniformly distributed along the length direction of the deformation joint (11), the first pressing steel plate (9) is horizontally embedded in the trapezoidal rubber pad (13), the second pressing steel plate (10) is arranged between an embedded steel plate (15) and a pressing nut (19), the lead screws (17) are arranged in the deformation joint (11), one end of each lead screw (17) is movably connected with the first pressing steel plate (9), and the other end of each lead screw sequentially penetrates through the embedded steel plate (15) on the inner side of the deformation joint (11), the rubber pad (16) and the second pressing steel plate (10) and is in threaded connection with the pressing nut (19).
3. The pre-assembled power gallery structure of claim 2, wherein a fixing shaft (30) is arranged in the first pressing steel plate (9) along the length direction of the deformation joint (11), and one end of the screw rod (17) is sleeved on the fixing shaft (30) and can rotate around the fixing shaft (30).
4. The pre-assembled power gallery structure of claim 1, wherein the deformation joint water stop device (20) further comprises a connection tenon (12), the connection tenon (12) is embedded in the trapezoidal rubber pad (13) and symmetrically arranged on two sides of the deformation joint (11), and the connection tenon (12) is a plate-shaped member extending along the length direction of the deformation joint (11).
5. The pre-assembled power gallery structure according to claim 1, wherein a plurality of strip-shaped protrusions (26) are arranged on one side, facing the embedded steel plate (15), of the trapezoidal rubber gasket (13), the strip-shaped protrusions (26) are symmetrically distributed on two sides of the deformation joint (11), a sealing groove (14) is arranged on the embedded steel plate (15) at a position corresponding to the strip-shaped protrusions (26), and the sealing groove (14) is in interference fit with the strip-shaped protrusions (26).
6. The pre-assembled power gallery structure of claim 5 wherein the strip-like projections (26) have a width less than the width of the sealing groove (14).
7. The pre-assembled power gallery structure of claim 1, wherein the longitudinal locking member includes a tension box (3), a prestressed connecting steel bar (27) and an anchoring nut (25), the tension box (3) is embedded in the wall of the prefabricated pipe sections (28), the adjacent prefabricated pipe sections (28) are connected through the prestressed connecting steel bar, and two ends of the prestressed connecting steel bar extend into the two adjacent prefabricated pipe sections (28) respectively and are locked and arranged in the tension box (3) through the anchoring nut (25).
8. The pre-assembled power gallery structure of claim 7, wherein each of the prefabricated pipe sections (28) is provided with a spigot (4) at one end and a socket (5) at the other end for mating with the spigot (4), and a sealing rubber ring (24) is provided between the spigot (4) and the socket (5).
9. The pre-assembled power corridor structure according to claim 8, wherein the tension boxes (3) are multiple and evenly distributed around the prefabricated pipe sections (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120533296.9U CN218757592U (en) | 2021-03-15 | 2021-03-15 | Pre-assembled electric power gallery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120533296.9U CN218757592U (en) | 2021-03-15 | 2021-03-15 | Pre-assembled electric power gallery structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218757592U true CN218757592U (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120533296.9U Active CN218757592U (en) | 2021-03-15 | 2021-03-15 | Pre-assembled electric power gallery structure |
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|---|---|
| CN (1) | CN218757592U (en) |
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2021
- 2021-03-15 CN CN202120533296.9U patent/CN218757592U/en active Active
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