CN113152532A - Detachable device and method for plugging hoisting hole of underground substation - Google Patents
Detachable device and method for plugging hoisting hole of underground substation Download PDFInfo
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- CN113152532A CN113152532A CN202110410109.2A CN202110410109A CN113152532A CN 113152532 A CN113152532 A CN 113152532A CN 202110410109 A CN202110410109 A CN 202110410109A CN 113152532 A CN113152532 A CN 113152532A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 2
- 239000004795 extruded polystyrene foam Substances 0.000 description 11
- 238000010276 construction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 241001464837 Viridiplantae Species 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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Abstract
The invention relates to the technical field of hoisting hole plugging, and discloses a detachable device and a method for plugging a hoisting hole of an underground substation, wherein the hole wall of the hoisting hole comprises an inner hole wall, an outer hole wall and a hole wall top, wherein the hole wall top is provided with at least one step, and the top surface of each step is provided with a groove; the plugging device comprises a cover plate, a tightening device and a water stop bar, wherein the plate bottom of the cover plate is provided with a step matched with the top of the hole wall so that the cover plate covers the top of the hole wall; the water stop strip is placed in the groove; one end of the tightening device is fixed with the plate bottom of the cover plate, and the other end of the tightening device is fixed with the inner hole wall so as to provide pre-tightening force for the cover plate and the inner hole wall. According to the invention, the hole wall top of the hoisting hole is set to be stepped, and the water-swelling water stop strip is arranged in the groove of each step between the cover plate and the hole wall top, so that the waterproof performance of the hoisting hole of the transformer substation can be greatly improved.
Description
Technical Field
The invention relates to the technical field of lifting hole plugging, in particular to a detachable underground substation lifting hole plugging device and method.
Background
At present, the construction of substations in cities faces the problems of land shortage, high construction cost, environment coordination and the like, overground substations do not meet the requirements of city development, and the problems of land utilization and environment can be well solved by adopting the arrangement mode of underground substations or semi-underground substations. Therefore, the construction of underground substations is becoming more common. The underground substation must set up various equipment hole for hoist and mount transportation major possession equipment, and the hole for hoist also becomes the rain-proof, waterproof weak position of underground substation because of the dismouting that needs repeatedly. The plugging of the hoisting hole is particularly important, when the hoisting hole is set to be protruded out of the ground, the hoisting hole is 300-500 mm higher than the outdoor ground, the invasion of underground water and surface accumulated water can be effectively avoided, in addition, a concrete or steel cover plate is arranged at the top of the hoisting hole, and the joint between the bottom of the cover plate and the hole wall is sealed by waterproof factice to shield the invasion of rainwater and foreign objects; however, since the lifting hole and the plug thereof protrude out of the ground, a certain ground area is occupied, the land cannot be reused, cannot be greened or used as a transportation land, brings adverse effects on environmental coordination and landscapes, has a risk of being damaged maliciously, and is difficult to ensure the reliability.
Along with the upgrading of urban environment, the requirement on the land utilization rate of the underground transformer substation is higher and higher, and the use room of the transformer substation is also required to be arranged underground as much as possible, so that the detachable hoisting hole of the underground transformer substation is also developed and arranged underground. The top plate of the underground transformer substation is provided with a hoisting hole, the hole opening is sealed and covered by a concrete cover plate, sealing factice is filled in the hole gap, and then a waterproof layer (waterproof volume or waterproof paint) is arranged on the cover plate, so that the water resistance of the hoisting hole and the water resistance of the basement form a whole. However, the waterproof structure for plugging the hoisting hole is too simple, if the waterproof layer near the hoisting hole is damaged or fails, the gap of the cover plate is easy to seep water, and the reliability is low. Secondly, the waterproof structure for plugging the hoisting hole is inconvenient to disassemble, the top plate of the underground substation is generally buried to a depth of less than 2.5m, the soil needs to be dug to a depth of 2m when the hoisting hole is disassembled, the waterproof layer of the main body needs to be damaged, the waterproof layer is troublesome to recover, and the water leakage risk is high.
Disclosure of Invention
In view of the above problems, the present invention aims to provide a detachable plugging device and method for a lifting hole of an underground substation, so as to solve the problems of too simple structure, easy water seepage, low reliability, inconvenient detachment, etc. of the existing plugging device for the lifting hole.
In order to achieve the purpose, the invention adopts the following technical scheme:
one aspect of the invention provides a detachable plugging device for a hoisting hole of an underground substation, which is used for plugging the underground hoisting hole, wherein the hole wall of the hoisting hole comprises an inner hole wall, an outer hole wall and a hole wall top, the hole wall top is provided with at least one step, and the top surface of each step is provided with a groove; the plugging device comprises a cover plate, a tightening device and a water stop bar, wherein the plate bottom of the cover plate is provided with a step matched with the top of the hole wall so that the cover plate covers the top of the hole wall; the water stop strip is placed in the groove; one end of the tightening device is fixed with the plate bottom of the cover plate, and the other end of the tightening device is fixed with the inner hole wall so as to provide pre-tightening force for the cover plate and the inner hole wall.
Preferably, the tightening device includes a fixed rod shaft, a first tightening screw, a second tightening screw, and a tightening nut, wherein one end of the fixed rod shaft is embedded in the inner hole wall, the other end of the fixed rod shaft is connected to one end of the first tightening screw, the other end of the first tightening screw is threadedly assembled to a first end of the tightening nut, one end of the second tightening screw is fixed to the plate bottom of the cover plate, and the other end of the second tightening screw is threadedly assembled to a second end of the tightening nut.
Preferably, the first tightening screw is L-shaped and includes a vertical portion and a horizontal portion, wherein the vertical portion is connected to the tightening nut, and the horizontal portion is connected to the fixing rod shaft.
Preferably, the outside of apron is provided with first waterproof layer, just first waterproof layer extends downwards along outer cliff by the outside of apron to with the waterproof layer overlap joint of basement roof.
Preferably, the XPS protection plates are arranged on the outer side of the cover plate and the outer side of the outer hole wall.
Preferably, the XPS protection plate has a thickness of 50 mm.
Preferably, the minimum distance between the top of the hole wall of the hoisting hole and the top plate of the basement is 600mm, the distance between the top plate of the cover plate and the top plate of the basement is 900mm, and the thickness of the hole wall of the hoisting hole is 300 mm.
Preferably, a lifting ring is embedded in a top plate of the cover plate.
Preferably, the groove is semicircular with a radius of 30 mm.
The invention also provides a detachable underground substation hoisting hole plugging method, which comprises the following steps:
step S1, cleaning the hole wall top of the hoisting hole, and placing a water stop strip in a groove at the hole wall top;
step S2, covering the cover plate on the top of the hole wall, and providing pretightening force to the cover plate and the inner hole wall by using a tightening device to enable the plate bottom step of the cover plate to be mutually embedded with the step on the top of the hole wall;
step S3, arranging a first waterproof layer on the outer side of the cover plate, and extending the first waterproof layer downwards along the outer hole wall of the hoisting hole to be lapped with the waterproof layer of the basement roof;
in step S4, an XPS protection plate is disposed outside the first waterproof layer.
Compared with the prior art, the detachable device and the method for plugging the hoisting hole of the underground substation have the advantages that:
according to the detachable plugging device for the hoisting hole of the underground substation, provided by the embodiment of the invention, the hole wall top of the hoisting hole is set to be in a step type, and the water stop strip which expands when encountering water is arranged in the groove of each step between the cover plate and the hole wall top, so that the waterproof performance of the hoisting hole of the substation can be greatly improved.
In addition, the waterproof strip is waterproof, and the waterproof layer made of the waterproof coiled material is arranged, so that the waterproof performance is effectively improved, and the reliability of the hoisting hole of the transformer substation is improved.
Drawings
Fig. 1 is a schematic overall structure diagram of a detachable plugging device for a hoisting hole of an underground substation according to an embodiment of the invention;
fig. 2 is a schematic disassembled view of a detachable plugging device for a lifting hole of an underground substation according to an embodiment of the present invention;
FIG. 3 is a partial schematic view of a lifting hole in an embodiment of the invention;
FIG. 4 is a partial schematic view of a cover plate in an embodiment of the invention;
FIG. 5 is a schematic flow chart of a detachable plugging method for a hoisting hole of an underground substation according to an embodiment of the present invention;
in the figure, 1, a lifting hole; 11. an outer bore wall; 12. an inner bore wall; 13. a hole wall top; 131. a groove; 2. a cover plate; 3. a tightening device; 31. fixing the rod shaft; 32. a first tightening screw; 33. a second tightening screw; 34. tightening the nut; 4. a water stop bar; 5. XPS protection boards; 6. a first waterproof layer; 7. a second waterproof layer; 71. a cement nail; 8. a basement roof; 9. and (4) the ground.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the term "hoisting hole" is used in the present invention to indicate a transportation channel for hoisting electrical equipment in an underground substation, and is mainly used for hoisting large equipment such as a main transformer, a GAS Insulated Switchgear (GIS), and a reactor. Engineering experience shows that the voltage class of the current common underground transformer substation is 110 kV-220 kV, the sizes of hoisting holes of a main transformer of the common underground transformer substation are 10m multiplied by 7.5m and 110kV, the sizes of hoisting holes of a GIS are 12m multiplied by 6.5m and 220kV, and the sizes of hoisting holes of a reactor are 12m multiplied by 7.5 m.
As shown in fig. 1 to 4, a detachable plugging device for a hoisting hole of an underground substation according to a preferred embodiment of the present invention is disposed below a ground 9 and used for plugging the underground hoisting hole 1, wherein a hole wall of the hoisting hole 1 includes an inner hole wall 12, an outer hole wall 11 and a hole wall top 13, and a bottom of the outer hole wall 11 is butted with a top plate 8 of a basement; the hole wall top 13 is provided with at least one step, and the top surface of each step is provided with a groove 131 for placing the water stop strip 4, so that the water stop strip 4 is positioned between the top surface of the hole wall top 13 and the plate bottom of the cover plate 2 and expands when meeting water, and the waterproof performance is greatly improved; preferably, the groove 131 penetrates the top surface of the whole hole wall top 13, and the groove 131 is semicircular and has a radius of about 30 mm.
The plugging device comprises a cover plate 2, a tightening device 3 and a water stop strip 4, steps matched with the hole wall top 13 are arranged at the bottom of the cover plate 2, so that the cover plate 2 is covered on the hole wall top 13, the steps of the cover plate 2 are embedded with the steps of the hole wall top 13, the cover plate 2 is conveniently hoisted in place, and the disassembly operability is improved; preferably, the hole wall top 13 is provided with a step, so that the cross section of the top surface of the hole wall top 13 and the cross section of the corresponding position of the plate bottom of the cover plate 2 are Z-shaped; the water stop strip 4 is placed in the groove 131, the water stop strip 4 is preferably a bw type water-swelling water stop strip 4, and can also be made of other waterproof materials, and the water stop strip has a water stopping function of water swelling; one or more tightening devices 3 are provided, one end of each tightening device 3 is fixed to the bottom of the cover plate 2, and the other end of each tightening device 3 is fixed to the inner hole wall 12, so as to provide pre-tightening force to the cover plate 2 and the inner hole wall 12. Preferably, a plurality of tightening means 3 are evenly distributed along the circumferential direction of the inner bore wall 12. The tightening device 3 is utilized to provide pre-tightening force for the cover plate 2 and the inner hole wall 12 of the hoisting hole 1, so that the problem that the water-swelling water stop strip 4 cannot fully play a role due to the fact that the cover plate 2 is light in self weight and cannot be tightly covered on the top 13 of the hole wall can be solved; moreover, the tightening device 3 can fully ensure the function of the water stop strip 4, and simultaneously increases the compactness of the joint of the cover plate 2 and the hole wall top 13, thereby greatly improving the waterproof performance of the cover plate 2.
According to the invention, the hole wall top 13 of the hoisting hole 1 is set to be stepped, and the water stop strip 4 which expands when encountering water is arranged in the groove 131 of each step between the cover plate 2 and the hole wall top 13, so that the waterproof performance of the hoisting hole 1 of the transformer substation can be greatly improved. In addition, the hoisting hole 1 is arranged underground, so that the device is suitable for hoisting underground substation equipment, the ground space is not occupied, green plants can be covered above the hoisting hole plugging device, the ground environment is not influenced, the device is not easily damaged by people, and the reliability is provided for the equipment of the underground substation.
As shown in fig. 1, the tightening device 3 includes a fixed rod shaft 31, a first tightening screw 32, a second tightening screw 33, and a tightening nut 34, wherein one end of the fixed rod shaft 31 is embedded in the inner hole wall 12, the other end of the fixed rod shaft 31 is connected to one end of the first tightening screw 32, the other end of the first tightening screw 32 is threadedly mounted on a first end of the tightening nut 34, one end of the second tightening screw 33 is fixed to the bottom plate of the cover plate 2, the other end of the second tightening screw 33 is threadedly mounted on a second end of the tightening nut 34, and a distance between the first tightening screw 32 and the second tightening screw 33 is adjustable by the tightening nut 34, so as to press-fit the cover plate 2 on the top hole wall 13.
Further, the first tightening screw 32 is L-shaped, and includes a vertical portion connected to the tightening nut 34 and a horizontal portion connected to the fixing rod shaft 31.
Optionally, the diameter of the fixed rod shaft 31 is 20mm, the length of the fixed rod shaft is about 100mm, and the fixed rod shaft is made of stainless steel round steel, so that the corrosion resistance is improved. The distance between the pre-buried plate bottoms of the cover plates 2 of the fixing rod shafts 31 is 300-1200 mm. The first tightening screw 32 and the second tightening screw 33 are each made of stainless steel round steel.
Preferably, the outer hole wall 11 of the hoisting hole 1 is provided with a second waterproof layer 7, one side of the second waterproof layer 7 is overlapped with the waterproof layer of the basement, and the other side extends upwards along the outer hole wall 11, passes through the hole wall top 13 and extends to the upper side of the inner hole wall 12. During construction, the waterproof layer of the basement can be laid upwards along the outer hole wall 11 until the waterproof layer passes through the hole wall top 13 and reaches the upper side of the inner hole wall 12, and the waterproof layer is fixed by the cement nails 71. Through the second waterproof layer 7 and the water stop 4 in the groove 131, the double waterproof function is achieved, and the overall waterproof performance is greatly improved.
Further, the outside of apron 2 is provided with first waterproof layer 6, and first waterproof layer 6 covers in apron 2's periphery, just first waterproof layer 6 is extended to the waterproof layer overlap joint with basement roof 8 along outer hole wall 11 downwardly by apron 2's the outside, and overlap joint length is about 300mm, and lapped seam crossing adopts waterproof sealant fixed closure. Preferably, the first waterproof layer 6 has two layers, and both are located outside the second waterproof layer 7. Preferably, the first waterproof layer 6 is made of a root penetration resistant waterproof roll material.
As shown in fig. 1 and 2, an extruded polystyrene foam (XPS) protection plate is disposed on the outer side of the cover plate 2 and the outer side of the outer hole wall 11. Preferably, the XPS protection panel 5 is located outside the first and second waterproof layers 6, 7 so that green plants, lawn or shrub etc. can be planted outside the XPS protection panel 5. Further, the XPS protection plate 5 has a thickness of about 50 mm.
Optionally, a lifting ring, preferably a galvanized lifting ring, is embedded in the top plate of the cover plate 2 for lifting the cover plate 2.
Optionally, the inner hole wall 12, the outer hole wall 11 and the hole wall top 13 of the hoisting hole 1 are all made of concrete; the cover plate 2 is made of concrete. The minimum distance between the hole wall top 13 of the hoisting hole 1 and the basement top plate 8 is about 600mm, the distance between the top plate of the cover plate 2 and the basement top plate 8 is 900mm, the hole wall thickness of the hoisting hole 1 is about 300mm, and the horizontal extension length of the first waterproof layer 6 on the outer side of the cover plate 2 along the outer hole wall 11 is larger than or equal to 450 mm. When the cross section of the hole wall top 13 is Z-shaped, the adjusted height is about 50mm, and the thickness of each section of the hole wall top 13 is more than or equal to 150 mm. The distance between the top plate of the cover plate 2 and the ground 9 is about 300 mm.
As shown in fig. 5, the method for plugging the detachable underground substation lifting hole 1 comprises the following steps:
step S1, cleaning the hole wall top 13 of the hoisting hole 1, and placing water stop strips 4, preferably bw type water-swelling water stop strips 4 with the diameter of about 30mm, in the grooves 131 of the hole wall top 13;
step S2, the cover plate 2 is covered on the hole wall top 13, and a tightening device 3 is used for providing pretightening force for the cover plate 2 and the inner hole wall 12, so that the plate bottom step of the cover plate 2 is mutually embedded with the step of the hole wall top 13, the cover plate 2 is tightly pressed on the hole wall top 13, and the cover plate 2 can compact the water stop strip 4 between the cover plate 2 and the hole wall top 13 under the self-weight action of the cover plate 2, so that the water stop strip 4 tightly seals the gap between the cover plate 2 and the hole wall top 13;
step S3, arranging a first waterproof layer 6 on the outer side of the cover plate 2, and extending the first waterproof layer 6 downwards along the outer hole wall 11 of the hoisting hole 1 to be lapped with a waterproof layer of the basement top plate 8;
in step S4, the XPS protection sheet 5 is placed outside the first waterproof layer 6.
Preferably, the plugging method may further comprise the step of planting green plants on the outside of the XPS protective plate 5 so as not to affect the ground environment.
Further, between the step S2 and the step S3, a step of providing a second waterproof layer 7 on the outer side of the outer hole wall 11 is further included. Wherein, the second waterproof layer 7 extends upwards from the bottom of the outer hole wall 11, passes through the hole wall top 13 and extends to the upper side of the inner hole wall 12. The second waterproof layer 7 may overlap with the waterproof layer of the basement, or the waterproof layer of the basement may extend upward along the outer hole wall 11 as the second waterproof layer 7.
When dismantling hole for hoist plugging device, only need the excavation 2 tops of apron a little bury soil, separate the waterproof layer of 2 departments of apron, just can lift by crane apron 2, convenient and fast changes sealing rod 4 again during shutoff once more, lays the first waterproof layer 6 in the apron 2 outside again to guarantee hole for hoist 1's waterproof performance. Only the waterproof layer at the cover plate 2 is damaged when the cover plate 2 is disassembled and assembled, and the whole waterproof layer of the hole wall and the main body is not involved, so that the operability of disassembling and recovering the waterproof layer can be greatly reduced, and the waterproof reliability is also greatly guaranteed.
It should be noted that other specific embodiments of the method for plugging a detachable underground substation hoisting hole of the present invention are substantially the same as the specific embodiments of the device for plugging a detachable underground substation hoisting hole, and are not described herein again.
It should be noted that the device and the method for plugging the lifting hole of the underground substation can be used for plugging the lifting hole of the underground substation and can also be used for plugging lifting holes of other equipment.
To sum up, the embodiment of the invention provides a detachable plugging device and a method for a hoisting hole of an underground substation, wherein the hole wall top 13 of the hoisting hole 1 is set to be stepped, and a water-swelling water stop strip 4 is arranged in a groove 131 of each step between a cover plate 2 and the hole wall top 13, so that the waterproof performance of the hoisting hole 1 of the substation can be greatly improved. In addition, the waterproof strip 4 is waterproof, and the waterproof layer made of the waterproof coiled material is arranged, so that the waterproof performance is effectively improved, and the reliability of the hoisting hole 1 of the transformer substation is improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A detachable blocking device for a hoisting hole of an underground substation is used for blocking the underground hoisting hole and is characterized in that the hole wall of the hoisting hole comprises an inner hole wall, an outer hole wall and a hole wall top, wherein the hole wall top is provided with at least one step, and the top surface of each step is provided with a groove;
the plugging device comprises a cover plate, a tightening device and a water stop bar, wherein the plate bottom of the cover plate is provided with a step matched with the top of the hole wall so that the cover plate covers the top of the hole wall; the water stop strip is placed in the groove; one end of the tightening device is fixed with the plate bottom of the cover plate, and the other end of the tightening device is fixed with the inner hole wall so as to provide pre-tightening force for the cover plate and the inner hole wall.
2. The detachable underground substation hoisting hole plugging device according to claim 1, wherein the tightening device comprises a fixed rod shaft, a first tightening screw, a second tightening screw and a tightening nut, wherein one end of the fixed rod shaft is embedded in the inner hole wall, the other end of the fixed rod shaft is connected with one end of the first tightening screw, the other end of the first tightening screw is in threaded fit with a first end of the tightening nut, one end of the second tightening screw is fixed with the plate bottom of the cover plate, and the other end of the second tightening screw is in threaded fit with a second end of the tightening nut.
3. The detachable underground substation lifting hole plugging device of claim 2, wherein the first tightening screw is L-shaped and comprises a vertical part and a horizontal part, wherein the vertical part is connected with a tightening nut, and the horizontal part is connected with the fixed rod shaft.
4. The detachable underground substation lifting hole plugging device of claim 1, wherein a first waterproof layer is arranged on the outer side of the cover plate, and the first waterproof layer extends downwards from the outer side of the cover plate along the outer hole wall to be in lap joint with a waterproof layer of a basement roof.
5. The detachable plugging device for the hoisting hole of the underground substation of claim 1, wherein XPS protection plates are arranged on the outer side of the cover plate and the outer side of the wall of the outer hole.
6. The removable underground substation lifting hole plugging device of claim 5, wherein the thickness of the XPS protection plate is 50 mm.
7. The detachable plugging device for the hoisting hole of the underground substation of claim 1, wherein the minimum distance between the top of the wall of the hoisting hole and the top plate of the basement is 600mm, the distance between the top plate of the cover plate and the top plate of the basement is 900mm, and the thickness of the wall of the hoisting hole is 300 mm.
8. The detachable plugging device for the hoisting hole of the underground substation of claim 1, wherein a hoisting ring is embedded in a top plate of the cover plate.
9. The detachable underground substation lifting hole plugging device of claim 1, wherein the groove is semicircular and has a radius of 30 mm.
10. A detachable underground substation hoisting hole plugging method is characterized by comprising the following steps:
step S1, cleaning the hole wall top of the hoisting hole, and placing a water stop strip in a groove at the hole wall top;
step S2, covering the cover plate on the top of the hole wall, and providing pretightening force to the cover plate and the inner hole wall by using a tightening device to enable the plate bottom step of the cover plate to be mutually embedded with the step on the top of the hole wall;
step S3, arranging a first waterproof layer on the outer side of the cover plate, and extending the first waterproof layer downwards along the outer hole wall of the hoisting hole to be lapped with the waterproof layer of the basement roof;
in step S4, an XPS protection plate is disposed outside the first waterproof layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110410109.2A CN113152532A (en) | 2021-04-15 | 2021-04-15 | Detachable device and method for plugging hoisting hole of underground substation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110410109.2A CN113152532A (en) | 2021-04-15 | 2021-04-15 | Detachable device and method for plugging hoisting hole of underground substation |
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| CN113152532A true CN113152532A (en) | 2021-07-23 |
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| CN202110410109.2A Pending CN113152532A (en) | 2021-04-15 | 2021-04-15 | Detachable device and method for plugging hoisting hole of underground substation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142567A (en) * | 2022-06-24 | 2022-10-04 | 中国建筑第八工程局有限公司 | Unconventional construction joint system special for linear accelerator machine room and construction method thereof |
| CN115928793A (en) * | 2022-11-25 | 2023-04-07 | 中建八局第二建设有限公司 | Sealing device for basement hoisting hole and installation method and disassembly method thereof |
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| CN115928793A (en) * | 2022-11-25 | 2023-04-07 | 中建八局第二建设有限公司 | Sealing device for basement hoisting hole and installation method and disassembly method thereof |
| CN115928793B (en) * | 2022-11-25 | 2024-04-16 | 中建八局第二建设有限公司 | Sealing device for basement lifting hole, mounting method and dismounting method thereof |
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