CN113605446A - Prefabricated assembly for underground comprehensive pipe gallery construction and construction method thereof - Google Patents
Prefabricated assembly for underground comprehensive pipe gallery construction and construction method thereof Download PDFInfo
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- CN113605446A CN113605446A CN202110942148.7A CN202110942148A CN113605446A CN 113605446 A CN113605446 A CN 113605446A CN 202110942148 A CN202110942148 A CN 202110942148A CN 113605446 A CN113605446 A CN 113605446A
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- 238000010276 construction Methods 0.000 title claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 55
- 238000009434 installation Methods 0.000 claims description 11
- 210000001503 joint Anatomy 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000002689 soil Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000009417 prefabrication Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 abstract description 5
- 230000037431 insertion Effects 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 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
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Pipe Accessories (AREA)
Abstract
The invention relates to the technical field of pipe gallery construction, in particular to prefabricated assembly for underground comprehensive pipe gallery construction, which comprises a pipeline, wherein a sealing insertion ring is integrally formed at one end opening of the pipeline, a conical head is integrally formed at the front end of the sealing insertion ring, a plurality of first pin holes are formed in the outer part of the sealing insertion ring, a first connecting device is installed in each first pin hole, a sealing groove is formed in the inner side of the sealing insertion ring, and an air bag matching groove is formed in the notch of each sealing groove. The invention has the advantage of prolonging the service life.
Description
Technical Field
The invention relates to the technical field of pipe gallery construction, in particular to a prefabricated assembly for underground comprehensive pipe gallery construction and a construction method thereof.
Background
The utility model discloses a utility tunnel's construction technology mainly can divide into cast-in-place method and prefabricated assembly method, compare in cast-in-place utility tunnel, prefabricated assembly pipe gallery has construction quality good, construction period is short, advantages such as environmental pollution is little, prefabricated assembly pipe gallery exists the problem just lie in that the junction of pipeline often can not realize zonulae occludens, long-time use receives the influence of low complex environment can lead to the fracture of junction or the untight condition of connection appears, just so make the use of pipeline receive very big influence, and when docking the pipeline in the construction, the butt joint mode is complicated can not realize the quick butt joint of pipeline and make the work efficiency of assembling lower, the sealed often can not satisfy the requirement of long-term use because some operations in the work progress of butt joint cause the leakproofness to worsen.
Therefore, the prefabrication assembly for underground comprehensive pipe gallery construction and the construction method thereof are provided to solve the defects.
Disclosure of Invention
The invention aims to provide a prefabricated assembly for underground comprehensive pipe gallery construction and a construction method thereof, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a prefabricated assembly of utility tunnel construction, includes the pipeline, the one end port department integrated into one piece of pipeline is provided with sealed grafting ring, the front end integrated into one piece of sealed grafting ring is provided with the cone, a plurality of first pinholes have been seted up to the outside of sealed grafting ring, install first connecting device in the first pinhole, the seal groove has been seted up to the inboard of sealed grafting ring, gasbag cooperation groove has been seted up to the notch department of seal groove, a plurality of second locking grooves have been seted up to the inboard circumference in gasbag cooperation groove, the mounting groove has been seted up to the other end of pipeline, a plurality of first locking grooves have been seted up to the circumference in the mounting groove, and install first sealing device in the mounting groove, flexible groove has been seted up to the inboard of mounting groove, the internal diameter in flexible groove is greater than the internal diameter of pipeline, and installs second connecting device in the flexible groove.
Preferably, the first connecting device includes a first spring and a first locking pin, the first locking pin is an inclined pin, the inclined surface faces one side of the pipeline port, a spring groove is formed in the lower end of the first locking pin, the first spring is inserted into the spring groove, the lower end of the first spring is fixedly connected with the bottom surface of the first pin hole, and the first locking pin is inserted into the first locking groove in the working state.
Preferably, the first sealing device comprises a sealing movable ring, a guide rod and a third spring, the sealing movable ring is inserted in the mounting groove, the front end of the sealing movable ring is provided with a conical groove, and the conical groove is inserted with a conical head in a working state.
Preferably, the rear end of the sealing movable ring is fixedly provided with a plurality of guide rods, the guide rods are inserted into guide holes in the bottom of the mounting groove, and the guide rods are sleeved with third springs.
Preferably, the second connecting device comprises a connecting ring and a top ring, an annular groove is formed in the front end of the connecting ring, a plurality of connecting holes are formed in the inner bottom surface of the annular groove, the connecting holes penetrate through the outer portion of the connecting ring, and a plurality of square through holes are formed in the outer surface of the annular groove.
Preferably, the rear end of the connecting ring is provided with an air bag mounting groove, the rear end of the air bag mounting groove is integrally formed with a sleeving ring, and one end of the sleeving ring is fixedly connected with the bottom of the telescopic groove and sleeved with a second sealing device.
Preferably, the top ring is inserted into the annular groove, a plurality of second pin holes are formed in the surface of the top ring, a plurality of guide posts are fixedly arranged in the second pin holes, second springs are sleeved on the guide posts, the upper ends of the second springs are fixedly connected with second locking pins, pulleys are mounted at the upper ends of the second locking pins, a top rod is fixedly arranged at the rear end of the top ring, and a plurality of elastic pieces are arranged on the circumference of the end portion of the top rod.
Preferably, the second sealing device comprises an air bag, an annular baffle and an elastic support ring, the air bag is inserted into the air bag mounting groove, the annular baffle is sleeved on the sleeving ring and covers the upper end of the air bag mounting groove, an inflation hole is formed in the surface of the annular baffle, one end of the elastic support ring is fixedly connected to the bottom of the telescopic groove, the elastic support rings are fixedly connected through S-shaped elastic pieces, and the elastic support ring at the foremost end is in contact with the annular baffle.
A construction method for prefabricating and assembling underground comprehensive pipe gallery construction comprises the following operation steps:
the method comprises the following steps: the method comprises the following steps of manufacturing a pipeline prefabricated part, firstly pouring the pipeline, then fixing an elastic support ring at the bottom of a telescopic groove by using a screw, inserting an air bag into an air bag installation groove, and then sleeving an upper annular baffle on a sleeving ring to weld and fix the sleeving ring on the pipeline;
step two: excavating and supporting a foundation pit, namely excavating the foundation pit by using excavating equipment and supporting the excavated foundation pit;
step three: foundation treatment and cushion layer laying, namely leveling the foundation of the excavated foundation pit, laying a cushion layer on the foundation, arranging construction joints and water collection wells, and arranging longitudinal slopes at each distance;
step four: hoisting the prefabricated assembled pipe gallery, and hoisting the prefabricated pipeline to the specified position of the foundation pit;
step five: the pipelines are butted, different ends of the two pipelines are spliced, so that the first locking pin is spliced into the first locking groove, and the second locking pin is spliced into the second locking groove to realize the sealed butt joint of the pipelines;
step six: a waterproof test, namely selecting partial sections of the prefabricated assembled pipe gallery to perform the waterproof test;
step seven: and backfilling soil, backfilling the foundation pit according to the requirement in layers and tamping, wherein the thickness of each layer is 0.4-0.6m, tamping the soil filled at the two sides by using a small tamping machine or manpower, and compacting the soil filled at the top layer by using machinery according to the condition.
Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable structure and strong functionality, and has the following advantages:
1. the two connecting devices are arranged at the connecting position of the pipeline, so that the tightness and firmness of the connecting position of the pipeline can be fully ensured, the requirement of long-term use can be met, the phenomenon that the connecting position of the pipeline is disconnected after long-term use can not occur, the two connecting devices can be automatically locked only by inserting the pipeline in the construction process, the connection of the pipeline is realized, and the working efficiency of assembly is greatly improved conveniently and quickly;
2. the pipeline joint is provided with the two sealing devices, the sealing performance of the pipeline joint can be fully guaranteed under the mutual matching effect of the two sealing devices, and the requirement of long-term use is met, so that the service life of the pipeline is prolonged.
Drawings
FIG. 1 is an exploded view of a pipe joint;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is an enlarged schematic view at B of FIG. 1;
FIG. 4 is an enlarged schematic view at C of FIG. 1;
FIG. 5 is a schematic view of a half-section of a pipe;
FIG. 6 is a schematic view of the attachment ring;
FIG. 7 is a schematic structural view of an annular baffle;
FIG. 8 is a schematic structural view of an elastic support ring;
fig. 9 is a schematic structural view of the seal top ring.
In the figure: 1. a pipeline; 11. a sealing plug-in ring; 111. a first pin hole; 112. a first spring; 113. a first locking pin; 12. a sealing groove; 121. an air bag fitting groove; 122. a second locking slot; 13. mounting grooves; 131. a first locking groove; 14. a telescopic groove; 2. a connecting ring; 21. an annular groove; 211. connecting holes; 22. a square through hole; 23. an air bag mounting groove; 24. a sleeving connection ring; 3. a top ring; 31. a second pin hole; 311. a guide post; 312. a second spring; 32. a top rod; 321. an elastic sheet; 33. a second locking pin; 331. a pulley; 4. an air bag; 5. an annular baffle; 51. an inflation hole; 6. an elastic support ring; 61. an S-shaped elastic sheet; 7. sealing the movable ring; 71. a tapered groove; 72. a guide bar; 73. and a third spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 9, the present invention provides a technical solution:
the utility model provides a prefabricated assembly of utility tunnel construction, including pipeline 1, pipeline 1's one end port department integrated into one piece is provided with sealed inserting ring 11, sealed inserting ring 11's front end integrated into one piece is provided with the cone, a plurality of first pinhole 111 have been seted up to sealed inserting ring 11's outside, install first connecting device and first connecting device in the first pinhole 111 and include first spring 112 and first locking pin 113, first locking pin 113 is the inclined plane round pin, and the inclined plane is towards the party of pipeline 1 port, and the spring groove has been seted up to the lower extreme of first locking pin 113, the grafting has first spring 112 in the spring groove, the lower extreme of first spring 112 and the bottom surface fixed connection of first pinhole 111, first locking pin 113 pegs graft in first locking groove 131 under operating condition, be welded connection between the lower extreme of first spring 112 and the bottom surface of first pinhole 111 in addition.
The inner side of the sealing insert ring 11 is provided with a sealing groove 12, a notch of the sealing groove 12 is provided with an air bag matching groove 121, the inner side circumference of the air bag matching groove 121 is provided with a plurality of second locking grooves 122, the other end of the pipeline 1 is provided with a mounting groove 13, the circumference of the mounting groove 13 is provided with a plurality of first locking grooves 131, the mounting groove 13 is provided with a first sealing device which comprises a sealing movable ring 7, a guide rod 72 and a third spring 73, the sealing movable ring 7 is inserted in the mounting groove 13, the front end of the sealing movable ring 7 is provided with a tapered groove 71, the tapered groove 71 is inserted with a tapered head under the working state, the rear end of the sealing movable ring 7 is fixedly provided with a plurality of guide rods 72, the guide rods 72 are inserted in guide holes at the bottom of the mounting groove 13, the guide rods 72 are sleeved with the third spring 73, and two ends of the third spring 73 are respectively welded and fixed at the bottom of the mounting groove 13 and the rear end of the sealing movable ring 7, and the third spring 73 is in a compressed state in the operating state.
The top ring 3 is inserted into the annular groove 21, a plurality of second pin holes 31 are formed in the surface of the top ring 3, a plurality of guide posts 311 are fixedly arranged in the second pin holes 31, second springs 312 are sleeved on the guide posts 311, the upper ends of the second springs 312 are fixedly connected with second locking pins 33, pulleys 331 are installed at the upper ends of the second locking pins 33, a top rod 32 is fixedly arranged at the rear end of the top ring 3, a plurality of elastic pieces 321 are arranged on the circumference of the end portion of the top rod 32, the top rod 32 is inserted into the connecting hole 211, and the end portion of the top rod 32 is in contact with the annular baffle 5.
The gasbag mounting groove 23 has been seted up to the rear end of go-between 2, the rear end integrated into one piece of gasbag mounting groove 23 is provided with cup joint ring 24, the one end of cup joint ring 24 and the tank bottom fixed connection of flexible groove 14 and cup joint the second sealing device and including gasbag 4 on the ring 24 and the second sealing device, ring baffle 5 and elastic support ring 6, gasbag 4 pegs graft in gasbag mounting groove 23, ring baffle 5 cup joints on cup joint ring 24 and covers the upper end at gasbag mounting groove 23, ring baffle 5 has seted up on the surface and aerifys hole 51, the one end fixed connection of elastic support ring 6 is at the tank bottom of flexible groove 14, and pass through S type shell fragment 61 fixed connection between the elastic support ring 6, and the elastic support ring 6 of foremost end contacts with ring baffle 5 in addition under operating condition ring baffle 5 indents to flexible groove 14, gasbag 4 launches to gasbag cooperation groove 121.
A construction method for prefabricating and assembling underground comprehensive pipe gallery construction comprises the following operation steps:
the method comprises the following steps: the method comprises the following steps of manufacturing a prefabricated part of the pipeline 1, pouring the pipeline 1, fixing an elastic support ring 6 at the bottom of a telescopic groove 14 by screws, inserting an air bag 4 into an air bag installation groove 23, sleeving an upper annular baffle 5 on a sleeving ring 24, and welding and fixing the sleeving ring 24 on the pipeline 1;
step two: excavating and supporting a foundation pit, namely excavating the foundation pit by using excavating equipment and supporting the excavated foundation pit;
step three: foundation treatment and cushion layer laying, namely leveling the foundation of the excavated foundation pit, laying a cushion layer on the foundation, arranging construction joints and water collection wells, and arranging longitudinal slopes at each distance;
step four: hoisting the prefabricated assembled pipe gallery, and hoisting the prefabricated pipeline 1 to the specified position of the foundation pit;
step five: the pipelines 1 are butted, different ends of the two pipelines 1 are inserted, so that the first locking pin 113 is inserted into the first locking groove 131, and the second locking pin 33 is inserted into the second locking groove 122 to realize the sealed butt joint of the pipelines 1;
step six: a waterproof test, namely selecting partial sections of the prefabricated assembled pipe gallery to perform the waterproof test;
step seven: and backfilling soil, namely backfilling the foundation pit according to the requirement in layers and tamping, wherein the thickness of each layer is 0.5m, the soil filled at the two sides is tamped by using a small tamping machine or manpower, and the soil filled at the top layer is tamped by using machinery according to the condition.
The working principle is as follows: when the pipelines 1 are butted, one end with the sealing inserting ring 11 is inserted into the installation groove 13 on another pipeline 1, at this time, the conical head on the sealing inserting ring 11 is inserted into the conical groove 71 on the sealing movable ring 7, and the sealing movable ring 7 in the installation groove 13 retracts inwards along with the jacking of the sealing inserting ring 11, and at this time, the third spring 73 on the guide rod 72 is in a compressed state, the first locking groove 131 in the installation groove 13 leaks along with the retraction of the sealing movable ring 7, and the first locking pin 113 retracts into the first pin hole 111 due to the fact that the groove opening of the installation groove 13 extrudes the inclined surface of the first locking pin 113, so that the sealing inserting ring 11 can be smoothly inserted into the installation groove 13 until the first locking pin 113 reaches the position of the first locking groove 131, so that the first locking pin 113 is inserted into the first locking groove 131 under the action of the first spring 112, the first layer locking of the two pipelines 1 is realized, the third spring 73 is in a compressed state, so that a tight fit is formed between the conical head and the conical groove 71, the conical body has the characteristic of being more and more compact as the conical body is more squeezed, so that the connection between the conical head and the conical groove is very tight, the first layer sealing effect is realized, the front end surface of the top ring 3 is contacted with the groove bottom of the sealing groove 12 while the two pipelines 1 are butted, the top ring 3 is retracted towards the inside of the annular groove 21 under the squeezing of the pipelines 1, in addition, the second locking pin 33 is positioned in the annular groove 21 in the initial state, so the second locking pin 33 reaches the position of the square through hole 22 along with the retraction of the top ring 3, the pulley 331 arranged on the second locking pin 33 is used for reducing friction and facilitating the movement of the top ring 3, and the second locking pin 33 is ejected into the square through hole 22 under the action of the second spring 312, and the insertion is realized in the second locking groove 122 to lock the second layer between the pipelines 1, and because the push rod 32 is inserted in the connecting hole 211 and the end surface of the push rod 32 contacts with the annular baffle 5, the annular baffle 5 is pushed out of the telescopic groove 14 along with the movement of the push ring 3, so the annular baffle 5 can not cover the upper end of the air bag mounting groove 23, so the air bag 4 loses extrusion and expands, and is inserted in the air bag matching groove 121, and is still in a compressed state at the moment, so the second layer sealing effect can be realized, in addition, the annular baffle 5 is provided with an inflation hole 51 for conveniently inflating the air bag 4, because the air bag 4 is mounted in the air bag mounting groove 23 in a non-inflation state, and at the moment, the annular baffle 5 covers on the air bag mounting groove 23, and the elastic support ring 6 arranged at the rear end of the annular baffle 5 has the function of ensuring that the annular baffle 5 can always cover the air in a non-working state On bag mounting groove 23, can not make it break away from and then make gasbag 4 launch out under the inoperative condition with gasbag mounting groove 23 under the exogenic action, aim at ejector pin 32 with ejector pin 211 when installation apical ring 3 in addition and make the flexure strip 321 contract each other by the extrusion of the inner wall of connecting hole 211 like this to receive connecting hole 211, just so can make the flexure strip 321 pass connecting hole 211 smoothly then the flexure strip 321 parts each other, play apical ring 3 and go-between 2 swing joint's purpose, apical ring 3 can not take place to break away from with go-between 2.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a prefabricated assembly of utility tunnel construction, includes the pipeline, its characterized in that: a sealing plug-in ring is integrally formed at one end port of the pipeline, a conical head is integrally formed at the front end of the sealing plug-in ring,
a plurality of first pin holes are formed in the outer part of the sealing plug-in ring, a first connecting device is installed in each first pin hole, a sealing groove is formed in the inner side of the sealing plug-in ring, an air bag matching groove is formed in the notch of the sealing groove, a plurality of second locking grooves are formed in the circumference of the inner side of the air bag matching groove, a mounting groove is formed in the other end of the pipeline,
a plurality of first locking grooves are formed in the circumference of the mounting groove, a first sealing device is installed in the mounting groove, a telescopic groove is formed in the inner side of the mounting groove, the inner diameter of the telescopic groove is larger than that of the pipeline, and a second connecting device is installed in the telescopic groove.
2. The prefabricated assembly for underground comprehensive pipe gallery construction according to claim 1, is characterized in that: the first connecting device comprises a first spring and a first locking pin, the first locking pin is an inclined pin, the inclined surface faces one side of the pipeline port, a spring groove is formed in the lower end of the first locking pin, the first spring is connected in the spring groove in an inserted mode, the lower end of the first spring is fixedly connected with the bottom surface of the first pin hole, and the first locking pin is connected in the first locking groove in an inserted mode in the working state.
3. The prefabricated assembly for underground comprehensive pipe gallery construction according to claim 1, is characterized in that: the first sealing device comprises a sealing movable ring, a guide rod and a third spring, the sealing movable ring is inserted in the mounting groove, the front end of the sealing movable ring is provided with a conical groove, and the conical groove is inserted with a conical head in a working state.
4. The prefabricated assembly for underground comprehensive pipe gallery construction according to claim 3, characterized in that: the rear end of the sealing movable ring is fixedly provided with a plurality of guide rods, the guide rods are inserted into guide holes in the bottom of the mounting groove, and the guide rods are sleeved with third springs.
5. The prefabricated assembly for underground comprehensive pipe gallery construction according to claim 1, is characterized in that: the second connecting device comprises a connecting ring and a top ring, an annular groove is formed in the front end of the connecting ring, a plurality of connecting holes are formed in the inner bottom surface of the annular groove and penetrate through the outer portion of the connecting ring, and a plurality of square through holes are formed in the outer surface of the annular groove.
6. The prefabricated assembly for underground comprehensive pipe gallery construction according to claim 5, is characterized in that: the air bag installation groove has been seted up to the rear end of go-between, the rear end integrated into one piece of air bag installation groove is provided with the cover and connects the ring, the second sealing device has been cup jointed on the one end of cover and the tank bottom fixed connection in flexible groove and the cover connects the ring.
7. The prefabricated assembly for underground comprehensive pipe gallery construction according to claim 3, characterized in that: the top ring is inserted into the annular groove, a plurality of second pin holes are formed in the surface of the top ring, a plurality of guide posts are fixedly arranged in the second pin holes, second springs are sleeved on the guide posts, the upper ends of the second springs are fixedly connected with a second locking pin, a pulley is installed at the upper end of the second locking pin, a top rod is fixedly arranged at the rear end of the top ring, and a plurality of elastic pieces are arranged on the circumference of the end portion of the top rod.
8. The prefabricated assembly of underground utility tunnel construction of claim 6, characterized in that: the second sealing device comprises an air bag, an annular baffle and an elastic support ring, the air bag is inserted into an air bag mounting groove, the annular baffle is sleeved on the sleeving ring and covers the upper end of the air bag mounting groove, an inflation hole is formed in the surface of the annular baffle, one end of the elastic support ring is fixedly connected to the bottom of the telescopic groove, the elastic support ring is fixedly connected with the elastic support ring through an S-shaped elastic sheet, and the elastic support ring at the most front end is in contact with the annular baffle.
9. A construction method for prefabrication and erection for the construction of an underground utility tunnel according to any one of claims 1 to 8, comprising the following operating steps:
the method comprises the following steps: the method comprises the following steps of manufacturing a pipeline prefabricated part, firstly pouring the pipeline, then fixing an elastic support ring at the bottom of a telescopic groove by using a screw, inserting an air bag into an air bag installation groove, and then sleeving an upper annular baffle on a sleeving ring to weld and fix the sleeving ring on the pipeline;
step two: excavating and supporting a foundation pit, namely excavating the foundation pit by using excavating equipment and supporting the excavated foundation pit;
step three: foundation treatment and cushion layer laying, namely leveling the foundation of the excavated foundation pit, laying a cushion layer on the foundation, arranging construction joints and water collection wells, and arranging longitudinal slopes at each distance;
step four: hoisting the prefabricated assembled pipe gallery, and hoisting the prefabricated pipeline to the specified position of the foundation pit;
step five: the pipelines are butted, different ends of the two pipelines are spliced, so that the first locking pin is spliced into the first locking groove, and the second locking pin is spliced into the second locking groove to realize the sealed butt joint of the pipelines;
step six: a waterproof test, namely selecting partial sections of the prefabricated assembled pipe gallery to perform the waterproof test;
step seven: and backfilling soil, backfilling the foundation pit according to the requirement in layers and tamping, wherein the thickness of each layer is 0.4-0.6m, tamping the soil filled at the two sides by using a small tamping machine or manpower, and compacting the soil filled at the top layer by using machinery according to the condition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110942148.7A CN113605446B (en) | 2021-08-17 | 2021-08-17 | Prefabricated assembly for underground comprehensive pipe gallery construction and construction method thereof |
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| CN202110942148.7A CN113605446B (en) | 2021-08-17 | 2021-08-17 | Prefabricated assembly for underground comprehensive pipe gallery construction and construction method thereof |
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| CN113605446A true CN113605446A (en) | 2021-11-05 |
| CN113605446B CN113605446B (en) | 2022-05-27 |
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| KR20160000717A (en) * | 2014-06-25 | 2016-01-05 | 삼영기술주식회사 | Watertight device |
| CN108547327A (en) * | 2018-03-30 | 2018-09-18 | 中国二十冶集团有限公司 | A kind of construction method of prefabricated piping lane seam waterproof |
| CN209458500U (en) * | 2018-12-10 | 2019-10-01 | 苏州英威荣环保设备制造有限公司 | Gasbag-type conduit seals |
| CN209557810U (en) * | 2019-01-17 | 2019-10-29 | 无锡诚一净化设备有限公司 | It is detachably connected formula air hose |
| CN110230321A (en) * | 2019-06-10 | 2019-09-13 | 孙自强 | A kind of piping lane prefabricated component |
| CN211646471U (en) * | 2019-12-21 | 2020-10-09 | 成都建工科技有限公司 | Integral concrete utility tunnel of prefabricated assembly |
| CN211898554U (en) * | 2020-03-17 | 2020-11-10 | 中国水电四局（兰州）机械装备有限公司 | Prefabricated assembled comprehensive pipe gallery |
| CN212643858U (en) * | 2020-04-30 | 2021-03-02 | 浙江军天建筑装饰工程有限公司 | Can resist microthermal water supply pipe connected node |
| CN212866046U (en) * | 2020-06-05 | 2021-04-02 | 申浩 | Anticorrosive structure of utility tunnel's joint in silt |
| CN111706734A (en) * | 2020-06-23 | 2020-09-25 | 黄艳梅 | Natural gas energy source conveying connecting pipe fitting |
| CN212835503U (en) * | 2020-07-27 | 2021-03-30 | 河北省建筑科学研究院有限公司 | A nodal connection structure for prefabricating assemble utility tunnel |
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