CN209873874U - Well chamber and shaft connecting structure of prefabricated cable working well - Google Patents
Well chamber and shaft connecting structure of prefabricated cable working well Download PDFInfo
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- CN209873874U CN209873874U CN201822079460.4U CN201822079460U CN209873874U CN 209873874 U CN209873874 U CN 209873874U CN 201822079460 U CN201822079460 U CN 201822079460U CN 209873874 U CN209873874 U CN 209873874U
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- shaft
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Abstract
The utility model discloses a well room and pit shaft connection structure of prefabricated cable working well, the well room includes prefabricated fashioned bottom plate, well wallboard and roof, parallel arrangement about bottom plate and the roof, the both sides of bottom plate and roof are connected perpendicularly to the well wallboard, the pit shaft includes the pit shaft lateral wall board be connected with well room end well wallboard, the well barrel end wallboard be connected with well room end bottom plate, the pit shaft section of thick bamboo board and the pit shaft end wallboard of being connected with pit shaft lateral wall board, pit shaft lateral wall board is equipped with L shape breach, and L shape breach department is equipped with L shape steel sheet, and well room end roof extends to L shape breach department, pit shaft section of thick bamboo board and the vertical face of pit shaft lateral wall board L shape breach are connected and the bottom surface is connected with well room end roof, pit shaft end wallboard connects pit shaft lateral wall board tip. The utility model discloses the atress is even, is difficult to appear the crack.
Description
Technical Field
The utility model relates to an electric power engineering technique, concretely relates to cable work well.
Background
With the increasingly accelerated urban modern construction process and the daily shortage of urban space, underground cables have become the demand and trend of the development of the current society for effectively utilizing land and space resources. At present, domestic cable pipe ditches and working wells are mostly of cast-in-place concrete type, the pipe ditches and the working wells are good in integrity and good in impermeability and earthquake resistance, but the occupied area for excavation and material stacking in a construction site is large, the labor investment is large, the workload is large, the mould making wastes labor cost and time and is difficult to recycle, the construction period is long, and the construction quality cannot be guaranteed; noise and dust pollution are generated during construction, the influence on road surface traffic is large, and inconvenience is brought to daily life of the public; in shallow underground water level sections, water needs to be pumped for a long time during construction, and the power consumption is large.
The prefabricated assembly type cable pipe trench working well can overcome the defects and shortcomings of the existing concrete-coiled cable working well, but also has the problem that cracks are easy to appear at the connecting part of a well chamber and a shaft.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a well room and pit shaft connection structure of prefabricated cable work well is provided, solve well room and pit shaft and be connected the position and appear cracked technical problem easily.
In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a prefabricated cable working well's well room and pit shaft connection structure, the well room includes prefabricated fashioned bottom plate, well wallboard and roof, parallel arrangement about bottom plate and the roof, the both sides of bottom plate and roof are connected perpendicularly to the well wallboard, the pit shaft includes the pit shaft lateral wall board be connected with well room end well wallboard, the pit shaft tube head board be connected with pit shaft lateral wall board, with pit shaft lateral wall board and pit shaft end wallboard, pit shaft lateral wall board is equipped with L shape breach, and L shape breach department is equipped with L shape steel sheet, and well room end roof extends to L shape breach department, pit shaft tube head board is connected and the bottom surface is connected with well room end roof with the vertical face of pit shaft lateral wall board L shape breach, pit shaft end wallboard connects pit shaft lateral wall board tip.
Optionally, the L-shaped steel plate is provided with a through hole for allowing concrete to pass through the L-shaped steel plate when the concrete is poured.
Optionally, the shaft end wall plate is provided with a positioning notch abutted to the end portion of the shaft side wall plate, a grouting groove is formed in the vertical direction of the matching surface of the shaft side wall plate and the shaft end wall plate positioning notch, the grouting groove is connected with the shaft end wall plate in a sealing mode through poured concrete, embedded steel bar threaded sleeves are evenly arranged in the grouting groove in the shaft side wall plate end face at intervals in the vertical direction, the shaft end wall plate is provided with fastening holes corresponding to the embedded steel bar threaded sleeves, and the fastening holes are connected with the embedded steel bar threaded sleeves through assembling bolts.
Optionally, a wedge-shaped opening with a high inner part and a low outer part is arranged between the shaft orifice plate and the top plate, and the inside of the wedge-shaped opening is filled with concrete and then the anchor is sealed.
The utility model adopts the above technical scheme, following beneficial effect has: the shaft side wall plate is provided with an L-shaped notch, and the L-shaped notch is connected with the well chamber end top plate and the shaft barrel opening plate, so that the well chamber end top plate and the shaft barrel opening plate can be staggered with the shaft side wall plate, the well chamber end well wall plate and the shaft bottom wall plate in a pairwise manner, the stress is uniform, and cracks are not easy to occur. And the L-shaped steel plate is additionally arranged to prevent the section of concrete from cracking due to the fact that the L-shaped steel plate bears larger soil layer pressure at the L-shaped angle position.
The specific technical solution and the advantages of the present invention will be described in detail in the following detailed description with reference to the accompanying drawings.
Drawings
The invention will be further described with reference to the accompanying drawings and specific embodiments:
FIG. 1 is a schematic view of the cross-sectional structure of the well chamber of the present invention;
FIG. 2 is a schematic view of the connection structure between the well wall plate and the bottom plate of the present invention;
FIG. 3 is a schematic view of the connection structure of two adjacent bottom plates in the present invention;
fig. 4 is a schematic view of a front view connection structure of two adjacent well wall plates in the present invention;
fig. 5 is a schematic view of the overlooking connection structure of two adjacent well wall plates in the present invention;
fig. 6 is a schematic view of a connection structure between two adjacent top plates in the present invention;
fig. 7 is a schematic view of the connection structure of the well wall plate and the top plate of the present invention;
fig. 8 is a schematic sectional view of the shaft of the present invention;
fig. 9 is a schematic structural view of a side wall plate of a middle well casing according to the present invention;
fig. 10 is a schematic view of the connection structure of the side wall plate and the end wall plate of the well casing according to the present invention;
fig. 11 is a schematic view of the connection structure between the well barrel mouth plate and the top plate of the present invention.
Detailed Description
The utility model provides a prefabricated formula cable work well of segmentation unit assembly can exert each item advantage of prefabricated formula pipe, well, has unit equipment flexibility again and is strong, is fit for advantages such as different manhole department topography condition.
As shown in figure 1, the prefabricated square cable working well comprises a well chamber and a shaft connected with the end of the well chamber, wherein the well chamber comprises a bottom plate 11 and a top plate 13 which are arranged in parallel up and down, and a well wall plate 12 vertically connected with two sides of the bottom plate 11 and the top plate 13. Wherein, waterproof adhesive tapes are adhered to the connection parts of the bottom plate 11, the top plate 13 and the well wall plate 12 in advance, and then spliced.
As shown in fig. 2, a cast-in-place concrete cavity belt 14 for pouring concrete is arranged between the lower end of the well wall plate and the left end and the right end of the bottom plate, the cast-in-place concrete cavity belt 14 comprises a rabbet arranged at the lower end of the well wall plate and the left end and the right end of the bottom plate, a steel bar outlet is led out from the rabbet, the steel bar outlet is bent into a triangular hook, the well wall plate and the triangular hook led out from the bottom plate are staggered horizontally, the triangular hook and the through long steel bar are bound and fixed to form a steel bar cage, concrete poured in the cast-in-place concrete cavity belt 14 is combined with the steel bar cage, and the cast-in-place concrete is leveled after being poured, so that a cast-in-place belt with gradient. Therefore, the bottom plate 11 and the well wall plate 12 can form a whole body stressed mutually, the well wall plate 12 is prevented from displacing under the action of soil layer pressure, the overall stability and the shock resistance of the cable well are improved, and in addition, as a cast-in-place concrete belt formed between the bottom plate 11 and the well wall plate 12 does not need to be provided with a formwork again, a concrete prefabricated part is directly utilized to form a pouring belt, and the cable well has the advantage of convenient construction.
As shown in figure 3, the bottom plates 11 are butted in sequence along the extension direction of the well chamber, and the butted ends of two adjacent bottom plates are fastened into a whole by adopting a steel backing plate and an assembly bolt. The butt joint end of two adjacent bottom plates is provided with a sunken step 111, the butt joint of the two adjacent steps 111 forms a cast-in-place strip, a pre-embedded steel bar threaded sleeve 15 in threaded connection with an assembly bolt is arranged at the corresponding position of the step, a steel bar outlet and a steel bar outlet binding connection reinforcing steel bar 16 are led out at the corresponding position of the step, and concrete is poured at the step of the two adjacent bottom plates to be combined with the steel bar. Because two adjacent bottom plates 11 are connected through the steel backing plate and are integrated through cast-in-place concrete. Therefore, a pulling force exists between the bottom plate and the bottom plate, so that the well chamber bottom plate is formed into a whole and is stressed uniformly.
As shown in fig. 4 and 5, the well wall plates 12 are butted in sequence along the extension direction of the well chamber, and the butted ends of two adjacent well wall plates are fastened together by adopting a steel backing plate and an assembly bolt. Simultaneously the inner wall and the outer wall of two adjacent wall of a well wall board butt joint ends are provided with recess 121 along vertical direction interval, and the recess of inside and outside wall sets up along the even interval of staggering of vertical direction, and inner wall upper groove and outer wall upper groove all set up along the even interval of vertical direction promptly, and inner wall upper groove and outer wall upper groove stagger in vertical direction simultaneously, correspond the position at the recess simultaneously and be equipped with the embedded bar thread bush 15 with assembly bolt threaded connection. Therefore, the two adjacent well wall plates 12 form a zigzag fastening connection, and the cable working well is suitable for laying a cable pipe trench at a longer section, and can ensure that the well wall plates and the well wall plates are not staggered under the action of different side pressures at different positions. Furthermore, the butt joint end of two adjacent well wall plates is provided with a vertical grouting groove 17 for pouring concrete, and high-strength grouting material is poured after butt joint. The rigid connection between two adjacent well wall plates is more stable and tight, the deformation of the connecting joint is reduced, and the waterproof performance is further improved.
As shown in fig. 6, the top plates 13 are sequentially butted along the extending direction of the well chamber, the butt ends of two adjacent top plates are provided with sockets 131, wherein the socket at the lower part is provided with a water stop opening and a water-swelling adhesive tape is installed in the water stop opening, thereby forming stable connection and reliable sealing.
As shown in fig. 7, a water stopping opening 122 is provided between the top of the well wall plate 12 and the top plate 13, and a water-swelling adhesive tape is installed in the water stopping opening. The top of well wallboard sets up 2 big-end-up mouths of a river to meet water inflation adhesive tape, back installation roof, form twice sealing washer. The roof can be dismantled in a flexible way, and this well section equipment of easy to assemble and maintenance.
Due to the position of the top plate 13 to the top plate and the position of the top of the well wall plate 12 to the top plate 13 are waterproof by the water-swellable adhesive tape. Two adjacent well wallboards 12 are sealed waterproof through vertical grout groove 17 pouring high strength grout, and cast in situ concrete has all been pour between the butt joint end of two adjacent bottom plates and bottom plate 11 and well wall board 12 simultaneously, and consequently, well room whole forms stable waterproof seal structure, and the cable shaft can have better water-proof effects under the great environment of underground humidity.
The well chamber end is connected with the well shaft 2. As shown in fig. 8 and 9, the shaft 2 includes a shaft side wall plate 21 connected to a shaft wall plate at a shaft end, a shaft bottom wall plate connected to a shaft bottom plate, a shaft mouth plate 23 connected to the shaft side wall plate, and a shaft end wall plate 22, the shaft end wall plate 22 is provided with a cable conduit connection port 221 for passing a cable conduit, the shaft side wall plate 21 is provided with an L-shaped notch 211, and the L-shaped notch is provided with an L-shaped steel plate. The top plate at the end of the shaft chamber extends to the L-shaped gap, the shaft sleeve opening plate 23 is connected with the vertical surface of the L-shaped gap of the shaft side wall plate, the bottom surface of the shaft sleeve opening plate is connected with the top plate at the end of the shaft chamber, and the shaft end wall plate 22 is connected with the end part of the shaft side wall plate. Because the pressure of the soil layer at the position of the L-shaped angle is larger, the L-shaped steel plate is additionally arranged, and the crack of the section of concrete is prevented.
The connecting structure of the shaft side wall plate 21 and the shaft bottom wall plate can be the same as the connecting structure of the shaft wall plate and the bottom plate of the well chamber, and the connecting structure of the shaft bottom wall plate and the end bottom plate of the well chamber can be the same as the connecting structure of two adjacent bottom plates of the well chamber, so that the shaft and the well chamber form a stressed whole. When concrete is poured, the L-shaped steel plate at the L-shaped gap of the shaft side wall plate is provided with a through hole (stones can flow into the surface of the formwork through the through hole) which enables the concrete to pass through the L-shaped steel plate, so that the lower part of the steel plate is filled with the concrete when the concrete is poured.
As shown in fig. 10, the shaft end wall plate 22 is provided with a positioning notch abutted to the end of the shaft side wall plate, the end face of the shaft side wall plate and the fitting surface of the positioning notch of the shaft end wall plate are provided with grouting grooves 17 in the vertical direction and connected by grouting high-strength grouting material, embedded steel bar threaded sleeves 15 are uniformly arranged in the grouting grooves of the end face of the shaft side wall plate at intervals in the vertical direction, the shaft end wall plate is provided with fastening holes 25 corresponding to the embedded steel bar threaded sleeves, and the fastening holes are connected with the embedded steel bar threaded sleeves through assembling bolts. In addition, a man-climbing ladder is provided in the shaft-side wall plate 21, and an embedded steel bar threaded sleeve 15 for installing the ladder is provided in advance in the shaft-side wall plate.
As shown in fig. 11, a wedge 24 with a high inside and a low outside is arranged between the shaft orifice plate 23 and the top plate of the well chamber end, and the inside of the wedge is filled with concrete and then the outside is sealed. In addition, the connection structure of the wellbore wellhead plate 23 to the wellbore side wall plate and the connection structure of the wellbore end wall plate 22 to the wellbore side wall plate may be identical.
Well wallboard and well wallboard seam and bottom plate seam and roof seam can two liang or equal staggered joint overlap joint, and the well wallboard piece position of well room is not on a straight line with bottom plate piece position for well wallboard piece is located bottom plate central point and is put, avoids bottom plate piece section, and the atress is even.
The assembling bolt adopts a hexagonal head bolt which passes through the fastening hole and realizes threaded connection through the embedded steel bar threaded sleeve, so that the fixed connection effect is achieved; and connecting hole and fastening hole all set up in connecting groove and fastening groove to can make the thick liquid be connected hexagon head bolt and well room as an organic whole when the grout, thereby overall structure not only has soft connection also has rigid connection, makes overall structure both have fine waterproof performance, also has good firm in connection degree.
The utility model discloses each prefabricated component of prefabricated square cable working well, promptly bottom plate, roof, wall of a well board and pit shaft each parts all set up a plurality of screw holes that lift by crane, and the wall of a well board lifts by crane the screw hole with the bottom plate and corresponds the in bank setting. The lifting threaded holes can meet the requirements of stripping, transportation and hoisting, and the well wall plate and the threaded holes of the bottom plate are correspondingly arranged in rows when the well wall plate is installed in the later period, so that the temporary support of a specially-made complete set can be increased, and the installation and construction on site are facilitated. The stability and the security of assurance installation can be used to the fastening to well wallboard, adjustment installation accuracy simultaneously.
The roof makes things convenient for the roof to open for later stage well equipment maintenance, sets up the rings that lift by crane.
The utility model discloses each prefabricated component of prefabricated square cable working well, promptly bottom plate, roof, wall of a well board and pit shaft each part all adopt the impervious reinforced concrete prefabrication that intensity level is not less than C35, impervious level is not less than P8 to form, and the biggest glue ratio of concrete is 0.5, the biggest chloridion content is 0.15%, the biggest alkali content is 3.0kg/m3. The strength is not lower than C35, the pressure-resistant function in normal use can be realized, the cable well can be suitable for most of use environments, the impermeability grade is not lower than P8, the functions of drainage, water resistance and the like can be integrally met, and the good environment in the cable well can be maintained for a long time; the maximum water-gel ratio of the concrete is 0.5, the maximum chloride ion content is 0.15 percent, and the maximum alkali content is 3.0kg/m3Therefore, adverse effects of external environment on corrosion, permeation, efflorescence and the like of the whole inspection well can be relieved, and the whole service life of the cable well is prolonged.
The installation method comprises the following steps:
1. prefabricating a bottom plate, a well wall plate and a top plate of the square cable working well, and sticking waterproof adhesive tapes on joints of a shaft; and (5) excavating the foundation trench on site, and pouring and leveling the cushion layer.
2. And (4) lofting and positioning the cushion layer, namely hoisting the first bottom plate, adjusting the position, leveling and then sequentially hoisting the rest bottom plates.
3. And setting out and positioning the installation position of the well wall plate on the bottom plate.
4. And hoisting the first shaft side wall plate, and vertically placing the first shaft chamber end shaft wall plate in a positioning area with the bottom plate and aligning the positioning line. And an inclined support is arranged between the first well chamber end well wall plate and the bottom plate, two sets of inclined supports are required to be used for each well chamber end well wall plate and the bottom plate, and the length of each inclined support is combined into one set. The inclined support is connected with 4 lifting threaded holes in the well wall plate at the well chamber end, and the bottom plate is adjacent to 2 lifting holes.
5. And hoisting the shaft end wall plate, wherein the shaft end wall plate is vertical to the installation direction of the first shaft side wall plate, and the shaft end wall plate is abutted against the first shaft side wall plate and the bottom plate and is connected through a bolt fastener.
6. And hoisting a second shaft side wall plate, wherein the second shaft side wall plate is level to the first shaft side wall plate, is tightly attached to the shaft end wall plate, is vertically put down, falls into the positioning line area, and is connected with the two plates by using a fastener. Then the inclined support is installed to be fixedly connected with the bottom plate. And then the sling is removed to install the next well wall plate.
7. And well wall plates of the well chamber are sequentially installed in a clockwise direction. And (4) after the whole installation of the well wall plate is completed, removing the inclined support. And tensioning the opposite well wall plate by using the push rod.
8. And (5) hoisting and fastening the shaft orifice plate.
9. And binding the lower part of the well wall plate and the cast-in-place strip steel bars of the bottom plate, binding the bottom plate and the cast-in-place strip steel bars of the bottom plate, and casting the cast-in-place strip concrete.
10. Plugging the connecting ports of the fastening pieces of each component, grouting from top to bottom from the upper part of the well wall, and sealing the anchor by using waterproof mortar.
11. And water-swelling adhesive tapes are arranged on the water stopping port at the upper part of the side wall plate and the socket water stopping port of the top plate.
12. And sequentially hoisting the top plate along the length of the well chamber, and tightly attaching the top plate to the top plate bell and spigot.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (5)
1. The utility model provides a well room and pit shaft connection structure of prefabricated cable work well which characterized in that: the pit shaft comprises a bottom plate, a well wall plate and a top plate which are prefabricated, the bottom plate and the top plate are arranged in parallel, the well wall plate is vertically connected with two sides of the bottom plate and the top plate, the pit shaft comprises a pit shaft side wall plate connected with the well chamber end well wall plate, a pit shaft bottom wall plate connected with the well chamber end bottom plate, a pit shaft opening plate connected with the pit shaft side wall plate and a pit shaft end wall plate, the pit shaft side wall plate is provided with an L-shaped notch, the L-shaped notch is provided with an L-shaped steel plate, the well chamber end top plate extends to the L-shaped notch, the pit shaft opening plate is connected with the vertical surface of the L-shaped notch of the pit shaft side wall plate, the bottom surface of the pit shaft opening plate is connected with the well chamber.
2. A well chamber and shaft connecting structure of a prefabricated cable working well according to claim 1, wherein: the L-shaped steel plate is provided with a through hole which enables concrete to pass through the L-shaped steel plate when the concrete is poured.
3. A well chamber and shaft connecting structure of a prefabricated cable working well according to claim 1, wherein: the shaft end wall plate is provided with a positioning notch abutted to the end part of the shaft side wall plate, a grouting groove is formed in the matching surface of the shaft side wall plate and the shaft end wall plate positioning notch along the vertical direction and is connected with a cast-in-place concrete seal, embedded steel bar threaded sleeves are uniformly arranged in the grouting groove of the shaft side wall plate end face along the vertical direction at intervals, fastening holes are formed in the shaft end wall plate corresponding to the embedded steel bar threaded sleeves, and the fastening holes are connected with the embedded steel bar threaded sleeves through assembling bolts.
4. A well chamber and shaft connecting structure of a prefabricated cable working well according to claim 1, wherein: and a wedge-shaped opening with a high inside and a low outside is arranged between the shaft opening plate and the top plate, and the inside of the wedge-shaped opening is filled with concrete and then the outside of the wedge-shaped opening is sealed.
5. A well chamber and wellbore junction structure of a prefabricated cable work well according to any one of claims 1 to 4, wherein: the well chamber end bottom plate and the shaft bottom wall plate are arranged in a splicing mode, and the well chamber end side wall plate and the shaft side wall plate are arranged in a splicing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822079460.4U CN209873874U (en) | 2018-12-12 | 2018-12-12 | Well chamber and shaft connecting structure of prefabricated cable working well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822079460.4U CN209873874U (en) | 2018-12-12 | 2018-12-12 | Well chamber and shaft connecting structure of prefabricated cable working well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209873874U true CN209873874U (en) | 2019-12-31 |
Family
ID=68945647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822079460.4U Active CN209873874U (en) | 2018-12-12 | 2018-12-12 | Well chamber and shaft connecting structure of prefabricated cable working well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209873874U (en) |
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2018
- 2018-12-12 CN CN201822079460.4U patent/CN209873874U/en active Active
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