CN115162220B - Method for improving drainage capacity without interrupting transportation of old cover plate culvert to round pipe culvert - Google Patents
Method for improving drainage capacity without interrupting transportation of old cover plate culvert to round pipe culvert Download PDFInfo
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- CN115162220B CN115162220B CN202210725568.4A CN202210725568A CN115162220B CN 115162220 B CN115162220 B CN 115162220B CN 202210725568 A CN202210725568 A CN 202210725568A CN 115162220 B CN115162220 B CN 115162220B
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- pipe culvert
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 90
- 239000010426 asphalt Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002689 soil Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 107
- 239000010959 steel Substances 0.000 claims description 107
- 238000005096 rolling process Methods 0.000 claims description 11
- 238000005086 pumping Methods 0.000 claims description 9
- 230000002457 bidirectional effect Effects 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 4
- 101150054854 POU1F1 gene Proteins 0.000 description 17
- 230000008569 process Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 210000000709 aorta Anatomy 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
The application relates to the technical field of culvert design construction, in particular to a method for improving drainage capacity by converting old cover plate culverts into round pipe culverts without interrupting traffic, which comprises the following steps: s1, excavating a working pit; s2, arranging an end wall and a counter-force wall at the bottom of the working pit, and installing a jacking system on the counter-force wall; s3, inserting guide rails into the side walls of the working pits; s4, hoisting the round pipe culvert through a channel reserved by an end wall, enabling the guide rail to be in sliding connection with the inner periphery of the round pipe culvert, and jacking the round pipe culvert into the side wall of the working pit through a jacking system; s5, removing old cover culverts and soil positioned at the inner periphery of the circular pipe culverts; s6, connecting the next round pipe culvert with the previous round pipe culvert through a water stop ring and a flange, and jacking the next round pipe culvert into the side wall of the working pit through a jacking system; s7, injecting hot asphalt sealing joints at the joints of two adjacent round pipe culverts through a sealing system. The application can replace the old cover culvert with the round culvert with larger aperture to improve the drainage capacity without sealing traffic.
Description
Technical Field
The application relates to the technical field of culvert design construction, in particular to a method for improving drainage capacity by converting old cover plate culverts into round pipe culverts without interrupting traffic.
Background
The cover plate culvert is a building with a cave body composed of a cover plate, a table cap, a culvert platform, a foundation, an expansion joint and the like, and is widely applied to roadbed drainage systems due to the advantages that the construction technology is simple, the cover plate can be manufactured in a centralized mode and the like. The design size of the aperture of the cover culvert with long construction time is smaller (less than 1 meter), which is easy to cause insufficient drainage capacity, thereby causing frequent water soaking damage on the roadbed and the road surface and affecting traffic safety.
In order to improve drainage capacity, the conventional transformation scheme is to seal old roadbeds in traffic, excavate the roadbeds, replace old cover plate culverts with round pipe culverts with larger apertures, and accordingly improve drainage capacity.
However, in the process of implementing the present application, the inventor finds that at least the following problems exist in the technology, and the conventional modification scheme needs to seal or semi-seal traffic, and for some traffic aorta, the modification scheme seriously affects the traffic capacity and negatively affects society; therefore, further improvement can be made.
Disclosure of Invention
In order to improve the drainage capacity by replacing the old cover plate culvert with a round pipe culvert with larger aperture on the premise of not sealing traffic, the application provides a method for improving the drainage capacity by converting the old cover plate culvert into the round pipe culvert without interrupting traffic.
A method for improving drainage capacity without interrupting old cover plate culvert-to-round pipe culvert traffic comprises the following steps: s1, excavating a working pit: digging a working pit at one side of the roadbed and at the end part of the old cover plate culvert; s2, setting a jacking structure: an end wall is arranged at the bottom of the working pit and positioned at the outer side of the end part of the old cover plate culvert, a channel for a round pipe culvert to pass through is reserved in the end wall, a counter-force wall is arranged at the bottom of the working pit and positioned at the outer side of the end wall, and a jacking system for pushing the round pipe culvert to move and insert into the side wall of the working pit is arranged on the counter-force wall; s3, setting guide rails: inserting guide rails into the side walls of the working pits, and arranging the guide rails at the top of the old cover plate culvert; s4, jacking a round pipe culvert: firstly, hoisting a prefabricated round pipe culvert through a reserved passage of an end wall through a hoisting system, enabling a guide rail to be in sliding connection with the inner periphery of the round pipe culvert, and jacking the round pipe culvert into the side wall of a working pit through a jacking system; s5, removing old cover plates and culverts and soil: removing old cover culverts and soil positioned at the inner periphery of the round pipe culverts; s6, connecting a round pipe culvert: firstly, hoisting a next round pipe culvert through a channel reserved by an end wall through a hoisting system, connecting the next round pipe culvert with a previous round pipe culvert through a water stop ring and a flange, jacking the next round pipe culvert into the side wall of a working pit through a jacking system, and circulating S5-S6; s7, sealing a round pipe culvert: all the round pipe culverts are jacked to the side wall of the working pit, and then hot asphalt sealing joints are injected into the joints of two adjacent round pipe culverts through a sealing system.
Through adopting above-mentioned technical scheme, adopt jacking system to promote in proper order a plurality of round pipe culverts and insert the road bed earlier, and make round pipe culvert cover locate old apron culvert outside, adopt artifical/small-size dig machine again and clear away the old apron culvert that is located round pipe culvert inner periphery and soil to realize under the prerequisite that need not closed traffic, change old apron culvert into the bigger round pipe culvert in aperture, thereby improve drainage ability.
Optionally, the jacking system includes a plurality of hydraulic jack along circle pipe culvert center evenly distributed, a plurality of hydraulic jack all sets firmly in the counter-force wall is inboard, and a plurality of hydraulic jack piston rod all with circle pipe culvert looks butt.
Through adopting above-mentioned technical scheme, the in-process of jacking circular pipe culvert, through the synchronous work of a plurality of hydraulic jack of control, and a plurality of hydraulic jack output of speed control according to jacking can apply the impetus to the circular pipe culvert to the realization is exerted the impetus to the circular pipe culvert by jacking system according to the speed of jacking, with the circular pipe culvert jack-in work pit lateral wall.
Optionally, the flange is an inner flange, and the flange is provided with a avoiding position matched with the guide rail.
Through adopting above-mentioned technical scheme, the internal flange can reduce the resistance that the round tube culvert jacking in-process received, and the flange is offered in the department of corresponding position with the guide rail and is kept away the position of stepping down with guide rail looks adaptation, makes the guide rail pass round tube culvert smoothly, makes the guide rail can form mutual sliding connection with round tube culvert inner periphery simultaneously.
Optionally, the sealing system comprises an inner supporting type annular sealing steel belt embedded in the inner periphery of the flange, an expansion assembly and a pumping assembly, wherein two ends of the inner supporting type annular sealing steel belt are mutually overlapped, two ends of the inner supporting type annular sealing steel belt are respectively provided with an overlap inclined plane, and the expansion assembly is connected between two ends of the inner supporting type annular sealing steel belt and is used for driving the outer expanding/shrinking of the inner supporting type annular sealing steel belt; the internal supporting type annular sealing steel belt is provided with a feed inlet and a discharge outlet, and the pumping assembly is communicated with the feed inlet and is used for injecting hot asphalt into the joint of the two circular pipe culverts; the outer side of the inner supporting type annular sealing steel belt is fixedly provided with a positioning block which is matched with the avoiding position, so that a discharge hole is positioned at the top of the inner supporting type annular sealing steel belt.
Through adopting above-mentioned technical scheme, the in-process of pumping assembly with hot asphalt through feed inlet injection two circular pipe culvert seam departments, hot asphalt fills the seal with seam bottom earlier, and then progressively rises to the discharge gate and spill over, and because the discharge gate is located the ring seal steel band top of internal stay, hot asphalt overflows by the discharge gate, represents that whole seam has accomplished to fill the seal.
Optionally, expansion assembly includes two outer angle steel and the two-way lead screw that expand in the inboard both ends of internal stay formula annular seal steel band respectively, two connecting hole that expand the angle steel to preset outward are worn to locate respectively at two ends of two-way lead screw, two screw thread connection has outer expansion bolt respectively at two ends of two-way lead screw, and two outer expansion bolt butt respectively in two outer expansion angle steel face each other to one side, two screw thread connection has the shrink bolt respectively at two ends of two-way lead screw, and two the butt is in two outer expansion angle steel each other deviates from one side of shrink bolt respectively.
By adopting the technical scheme, the two outward expansion bolts are rotated, and in the process of respectively pushing the two outward expansion angle steels to face one side, the two outward expansion angle steels are mutually away, and the two ends of the inner support type annular sealing steel belt are driven to be mutually away, so that the inner support type annular sealing steel belt is externally expanded, and the outer side of the inner support type annular sealing steel belt is propped against the inner periphery of the flange; on the contrary, the two inward shrinking bolts are rotated to respectively push the two outward expansion angle steel to deviate from one side of the steel, the two outward expansion angle steel are close to each other, and the two ends of the inward supporting type annular sealing steel belt are driven to be close to each other, so that the inward supporting type annular sealing steel belt is shrunk inwards, and the outer side of the inward supporting type annular sealing steel belt is separated from the inner periphery of the flange.
Optionally, expansion assembly includes two outer angle steel that expand that set firmly respectively in the inboard both ends of internal stay formula annular seal steel band, be located articulated rod, two sets of interval arrangement's expansion rod and expansion screw rod between two outer angle steel, every group expansion rod all includes two expansion rods, two expansion rod one end all articulates in articulated rod, and the other end articulates respectively in two outer angle steel that expands, expansion screw rod threaded connection is in articulated rod, just expansion screw rod butt is in the mutual overlap joint department in internal stay formula annular seal steel band both ends.
By adopting the technical scheme, the expansion screw is rotated clockwise and abutted against the mutually overlapped parts of the two ends of the inner-support type annular sealing steel belt, the expansion screw pushes the two outer expansion angle steels to be mutually far away through the expansion rod and drives the two ends of the inner-support type annular sealing steel belt to be mutually far away, so that the outer sides of the inner-support type annular sealing steel belt are expanded, and the outer sides of the inner-support type annular sealing steel belt are abutted against the inner periphery of the flange; on the contrary, the expansion screw is rotated anticlockwise, the expansion screw is separated from the mutually overlapping position of the two ends of the inner support type annular sealing steel belt, and the outer side of the inner support type annular sealing steel belt is separated from the inner periphery of the flange through tapping and vibrating the two outer expansion angle steels by an external tool.
Optionally, the guide rail comprises a plurality of rail sections connected end to end, the outer side of each rail section is matched with the inner periphery of the circular pipe culvert, the inner side of each rail section is matched with the top edge angle of the old cover plate culvert, and the outer side of the front end and the inner side of the tail end of each rail section are provided with splicing inclined planes; the splicing inclined plane positioned at the outer side of the front end of the rail section is provided with a connecting groove, and the splicing inclined plane positioned at the inner side of the tail end of the rail section is fixedly provided with a connecting rod matched with the connecting groove.
Through adopting above-mentioned technical scheme, set up the in-process of guide rail, adopt artifical pile driver mode earlier, at the pit lateral wall and be located old apron and contain top edges and corners department and insert last rail festival, with make the rail festival lid establish in old apron and contain top edges and corners department, newly add next rail festival, and through connecting rod and the cooperation mode of pegging graft mutually with the spread groove, be connected next rail festival with last rail festival, adopt artifical pile driver mode equally at last, insert the next rail festival into the pit lateral wall, with this circulation, thereby realize inserting the guide rail at the pit lateral wall and be located old apron and contain top edges and corners department, with make the guide rail set up in old apron and contain top edges and corners department.
Optionally, a plurality of evenly distributed's rolling groove has been seted up to the passageway inner periphery of headwall, every rolling groove all rolls to inlay and is equipped with the ball with the outer periphery looks butt of circular pipe culvert.
Through adopting above-mentioned technical scheme, the ball can be with the sliding friction between passageway inner periphery and the circular pipe culvert periphery change into rolling friction to reduce the resistance that the jack-in circular pipe culvert in-process received, reduce the output of jacking system.
In summary, the application at least comprises the following beneficial technical effects:
1. firstly, a plurality of round pipe culverts are pushed and inserted into a roadbed in sequence by adopting a jacking system, the round pipe culverts are sleeved outside the old cover plate culverts, and then the old cover plate culverts and soil positioned at the inner periphery of the round pipe culverts are removed by adopting a manual/small-sized excavator, so that the old cover plate culverts are replaced with the round pipe culverts with larger apertures on the premise of no need of traffic sealing, and the drainage capacity is improved;
2. in the process that the pumping assembly injects hot asphalt into the joint of the two circular pipe culverts through the feed inlet, the hot asphalt firstly fills and seals the bottom of the joint, then gradually rises to the discharge port to overflow, and as the discharge port is positioned at the top of the internal supporting type annular sealing steel belt, the hot asphalt overflows from the discharge port, which means that the whole joint is filled and sealed.
Drawings
Fig. 1 is a schematic overall perspective view of the present application.
Fig. 2 is a schematic cross-sectional view of the headwall of the present application.
Fig. 3 is a schematic diagram of the positional relationship between the end wall and the reaction wall in the present application.
Fig. 4 is a schematic cross-sectional structure of a sealing system in embodiment 1 of the present application.
Fig. 5 is a schematic cross-sectional view of the guide rail of the present application.
Fig. 6 is a schematic cross-sectional structure of a sealing system in embodiment 2 of the present application.
Reference numerals illustrate: 1. a working pit; 2. end wall; 21. a channel; 22. a ball; 3. a reaction wall; 31. a jacking system; 311. a hydraulic jack; 4. a guide rail; 41. a rail section; 42. splicing inclined planes; 43. a connecting groove; 44. a connecting rod; 5. a water stop ring; 6. a flange; 61. avoidance of yielding; 7. a sealing system; 71. an inner supporting type annular sealing steel belt; 72. an expansion assembly; 721. angle steel is expanded outwards; 722. a two-way screw rod; 723. expanding a bolt; 724. a retracted bolt; 725. a hinge rod; 726. an expansion rod; 727. expanding the screw; 74. overlap joint inclined plane; 75. a feed inlet; 76. a discharge port; 77. a positioning block; 100. old cover plate culvert; 200. round pipe culvert.
Detailed Description
The application is described in further detail below with reference to fig. 1-6.
Example 1:
the embodiment of the application discloses a method for improving drainage capacity by converting an old cover plate culvert into a round pipe culvert without interrupting traffic.
Referring to fig. 1-3, a method for improving drainage capacity without interrupting old cover plate culvert to round culvert is to push a plurality of round culverts 200 into roadbed by adopting a jacking system 31, sleeve the round culverts 200 outside the old cover plate culverts 100, and clean the old cover plate culverts 100 and soil around the inner periphery of the round culverts 200 by adopting a manual/small excavator so as to replace the old cover plate culverts 100 with round culverts 200 with larger apertures without sealing traffic, thereby improving drainage capacity. Specifically, the method for improving drainage capacity without interrupting old cover plate culvert-to-round pipe culvert traffic comprises the following steps:
s1, excavating a working pit 1: a working pit 1 is excavated at one side of the roadbed and at the end part of the old cover plate culvert 100 by adopting a manual/large-scale excavator mode;
s2, setting a jacking structure: an end wall 2 is arranged at the bottom of the working pit 1 and positioned at the outer side of the end part of the old cover plate culvert 100 in an in-situ pouring mode, and a channel 21 for the round pipe culvert 200 to pass through is reserved in the end wall 2; meanwhile, a counterforce wall 3 is arranged at the bottom of the working pit 1 and positioned at the outer side of the end wall 2 in an in-situ pouring mode, and a jacking system 31 for pushing the round pipe culvert 200 to move and insert into the side wall of the working pit 1 is arranged on the counterforce wall 3;
s3, setting a guide rail 4: a manual/piling machine mode is adopted, a guide rail 4 is inserted into the side wall of the working pit 1 and positioned at the top edge of the old cover plate culvert 100, so that the guide rail 4 is arranged at the top edge of the old cover plate culvert 100;
s4, jacking the round pipe culvert 200: hoisting the prefabricated circular pipe culvert 200 through a reserved passage 21 of the end wall 2 by adopting a hoisting system hoisting and manual auxiliary matching mode, attaching the guide rail 4 to the inner periphery of the circular pipe culvert 200 to form a mutual sliding connection relation, and applying an pushing force to the circular pipe culvert 200 according to the jacking speed by a jacking system 31 so as to jack the circular pipe culvert 200 into the side wall of the working pit 1;
s5, removing the old cover culvert 100 and soil: the old cover plate culvert 100 and soil positioned at the inner periphery of the round pipe culvert 200 are removed by adopting a manual/small-sized digging machine mode;
s6, connecting a round pipe culvert 200: hoisting the next round pipe culvert 200 through a channel 21 reserved in the end wall 2 by adopting a hoisting system hoisting and manual auxiliary matching mode, abutting the end part of the last round pipe culvert 200 through a preset water stop ring 5, connecting the next round pipe culvert 200 with the last round pipe culvert 200 by adopting a flange 6 mode, applying a driving force to the next round pipe culvert 200 through a jacking system 31, jacking the next round pipe culvert 200 into the side wall of the working pit 1, and circulating S5-S6;
s7, sealing the round pipe culvert 200: all the round pipe culverts 200 are jacked to the side wall of the working pit 1, and then hot asphalt sealing joints are injected into the joints of two adjacent round pipe culverts 200 through the sealing system 7, so that the tightness between the two adjacent round pipe culverts 200 is improved.
Referring to fig. 1 and 4, specifically, the guide rail 4 adopted in the method includes a plurality of rail sections 41, the rail sections 41 are in a strip-shaped structure, the outer side of each rail section 41 is matched with the inner periphery of the circular pipe culvert 200, and the inner side of each rail section 41 is matched with the top edge angle of the old cover plate culvert 100; the outer side of the front end of each rail section 41 and the inner side of the tail end of each rail section 41 are provided with splicing inclined planes 42, and the two splicing inclined planes 42 are identical; the splicing inclined surface 42 positioned at the outer side of the front end of the rail section 41 is provided with a connecting groove 43, the splicing inclined surface 42 positioned at the inner side of the tail end of the rail section 41 is integrally formed and fixedly provided with a connecting rod 44, and the connecting rod 44 is in plug-in fit with the connecting groove 43.
In the process of setting the guide rail 4, a manual/pile driver mode is adopted firstly, a rail section 41 is inserted into the side wall of the working pit 1 and positioned at the top edge of the old cover plate culvert 100, so that the rail section 41 is covered and arranged at the top edge of the old cover plate culvert 100, a next rail section 41 is newly added, the next rail section 41 is connected with the previous rail section 41 in an inserting and matching mode through a connecting rod 44 and a connecting groove 43, finally, the next rail section 41 is inserted into the side wall of the working pit 1 in a manual/pile driver mode, and circulation is realized, so that the guide rail 4 is inserted into the side wall of the working pit 1 and positioned at the top edge of the old cover plate culvert 100, and the guide rail 4 is arranged at the top edge of the old cover plate culvert 100.
The hoisting system (not shown) adopted in the method is a mobile crane in the prior art, the mobile crane can lift and move the object hoisted by the mobile crane, and the structure and principle of the mobile crane are not repeated here.
In the process of jacking the round pipe culvert 200, a hoisting system is used for hoisting and manually assisting the matching mode, the prefabricated round pipe culvert 200 is hoisted to be aligned with the reserved channel 21 of the end wall 2, and then the round pipe culvert 200 moves along the axis direction of the round pipe culvert 200, so that the round pipe culvert 200 penetrates through the reserved channel 21 of the end wall 2, the guide rail 4 and the inner periphery of the round pipe culvert 200 are attached to each other, and a mutual sliding connection relationship is formed between the guide rail 4 and the round pipe culvert 200, and therefore the hoisting of the round pipe culvert 200 is realized by the hoisting system.
Referring to fig. 1-3, the jacking system 31 used in the method comprises a plurality of hydraulic jacks 311, the hydraulic jacks 311 are uniformly distributed along the center of the circular pipe culvert 200, the hydraulic jacks 311 are fixedly arranged on the inner side of the counter-force wall 3, and piston rods of the hydraulic jacks 311 are abutted against the circular pipe culvert 200.
In the process of jacking the circular pipe culvert 200, the hydraulic jacks 311 are controlled to work synchronously, and the output power of the hydraulic jacks 311 is controlled according to the jacking speed, so that the pushing force can be applied to the circular pipe culvert 200, and the pushing force is applied to the circular pipe culvert 200 by the jacking system 31 according to the jacking speed, so that the circular pipe culvert 200 is jacked into the side wall of the working pit 1.
After the jacking system 31 jacks the last round pipe culvert 200 into the side wall of the working pit 1, the hoisting system hoists the next round pipe culvert 200 through the reserved channel 21 of the end wall 2, the next round pipe culvert 200 is abutted against the end part of the last round pipe culvert 200, and finally the jacking system 31 jacks the round pipe culvert 200 into the side wall of the working pit 1, so that circulation is achieved, and a plurality of round pipe culverts 200 are sequentially pushed and inserted into a roadbed by the jacking system 31.
In the method, before the jacking system 31 jacks the round pipe culvert 200 into the side wall of the working pit 1, the next round pipe culvert 200 is connected with the previous round pipe culvert 200 through the water stop ring 5 and the flange 6. Specifically, the flange 6 is an inner flange 6, the flange 6 is integrally formed at the inner periphery of the end part of the circular pipe culvert 200, and the flange 6 is provided with an avoidance position 61 matched with the guide rail 4 at a position corresponding to the guide rail 4, so that the guide rail 4 can smoothly pass through the circular pipe culvert 200, and meanwhile, the guide rail 4 and the inner periphery of the circular pipe culvert 200 can form a mutual sliding connection relationship; the water stop ring 5 adopts a high temperature resistant rubber ring, the water stop ring 5 is of a circular ring structure, the outer diameter of the water stop ring 5 is equal to the outer diameter of the circular pipe culvert 200, and the inner diameter of the water stop ring 5 is larger than the inner diameter of the circular pipe culvert 200, so that a joint is formed between two adjacent circular pipe culverts 200.
In the process of connecting the circular culverts 200, the water stop ring 5 is firstly glued and fixed at the end part of the next circular culvert 200, then the next circular culvert 200 is hoisted and abutted to the end part of the last circular culvert 200 by a hoisting system, and finally the flange 6 between the next circular culvert 200 and the last circular pipe is fixedly connected by a fastener, so that the connection between the two adjacent circular culverts 200 is realized.
Referring to fig. 1, 2 and 5, in the method, after all the round culverts 200 are jacked up to the side wall of the working pit 1 and all the old cover culverts 100 and soil located at the inner periphery of the round culverts 200 are removed, hot asphalt sealing joints are injected into the joints of two adjacent round culverts 200 through a sealing system 7.
Specifically, the sealing system 7 includes an inner-stay annular sealing steel band 71, an expansion assembly 72, and a pumping assembly; the inner supporting type annular sealing steel belt 71 is formed by elastically bending steel belts, and the inner supporting type annular sealing steel belt 71 is embedded in the inner periphery of the flange 6, namely the outer side of the inner supporting type annular sealing steel belt 71 is attached to the inner periphery of the flange 6; the two ends of the inner support type annular sealing steel belt 71 are mutually overlapped, and the two ends of the inner support type annular sealing steel belt 71 are provided with overlapping inclined planes 74, namely the two ends of the inner support type annular sealing steel belt 71 are mutually overlapped through the overlapping inclined planes 74 to form the inner support type annular sealing steel belt 71 with a circular structure; the expansion assembly 72 is connected between two ends of the inner support type annular sealing steel belt 71, the expansion assembly 72 can be used for driving the inner support type annular sealing steel belt 71 to expand outwards, the outer side of the inner support type annular sealing steel belt 71 is abutted against the inner periphery of the flange 6, and the expansion assembly 72 can be used for driving the inner support type annular sealing steel belt 71 to shrink inwards, so that the outer side of the inner support type annular sealing steel belt 71 is separated from the inner periphery of the flange 6; the two positioning blocks 77 which are embedded and matched with the avoidance positions 61 are fixedly formed on the outer side of the inner supporting type annular sealing steel belt 71 in an integrated mode, and when the expansion assembly 72 drives the inner supporting type annular sealing steel belt 71 to expand outwards, the outer side of the inner supporting type annular sealing steel belt 71 is abutted against the inner periphery of the flange 6, the two positioning blocks 77 are embedded into the two avoidance positions 61.
The inner supporting type annular sealing steel belt 71 is provided with a feed inlet 75 and a discharge outlet 76, the discharge outlet 76 is positioned at the center of the two positioning blocks 77, so that the two positioning blocks 77 are embedded in the two avoidance positions 61, and the inner supporting type annular sealing steel belt 71 can automatically adjust the position, so that the discharge outlet 76 is positioned at the top of the inner supporting type annular sealing steel belt 71.
The pumping assembly (not shown) adopts a high-temperature asphalt pump, a high-temperature resistant pipeline and a trough provided with hot asphalt in the prior art, wherein the high-temperature asphalt pump is placed at the bottom of the trough, and the high-temperature resistant pipeline is connected between the high-temperature asphalt pump and the feed inlet 75, so that the hot asphalt is injected into the joint of the two circular pipe culverts 200 through the feed inlet 75 by the pumping assembly.
In this embodiment, the expansion assembly 72 includes two outer expansion angles 721 and a bi-directional screw 722; the two outer expansion angle steels 721 are respectively welded and fixed at two ends of the inner side of the inner supporting annular sealing steel belt 71, the two outer expansion angle steels 721 are provided with connecting holes, and the aperture of the connecting holes is slightly larger than the outer diameter of the bidirectional screw rod 722; two ends of the bidirectional screw 722 are respectively penetrated through the preset connecting holes of the two outward expansion angle steels 721, two ends of the bidirectional screw 722 are respectively connected with outward expansion bolts 723 in a threaded manner, the two outward expansion bolts 723 are respectively abutted against the two outward expansion angle steels 721 towards one side, two ends of the bidirectional screw 722 are respectively connected with inward contraction bolts 724 in a threaded manner, and the two inward contraction bolts 724 are respectively abutted against one side, deviating from one side, of the two outward expansion angle steels 721.
Rotating the two outward expansion bolts 723 to respectively push the two outward expansion angle steels 721 to face one side, wherein the two outward expansion angle steels 721 are mutually far away, and drive the two ends of the inner support type annular sealing steel belt 71 to be mutually far away, so that the inner support type annular sealing steel belt 71 is outward expanded, and the outer side of the inner support type annular sealing steel belt 71 is abutted against the inner periphery of the flange 6; on the contrary, in the process of rotating the two inward shrinking bolts 724 to respectively push the two outward expansion angle steels 721 to deviate from one side, the two outward expansion angle steels 721 are close to each other, and the two ends of the inward supporting type annular sealing steel belt 71 are driven to be close to each other, so that the inward supporting type annular sealing steel belt 71 is shrunk inwards, and the outer side of the inward supporting type annular sealing steel belt 71 is separated from the inner periphery of the flange 6.
In this embodiment, a plurality of uniformly distributed rolling grooves are formed in the inner periphery of the channel 21 of the end wall 2, each rolling groove is embedded with a ball 22 in a rolling manner, and the top of the ball 22 is exposed out of the notch of the rolling groove and is abutted against the outer periphery of the circular pipe culvert 200. The balls 22 can convert sliding friction between the inner periphery of the channel 21 and the outer periphery of the tubular culvert 200 into rolling friction, so that resistance applied in the process of jacking the tubular culvert 200 is reduced, and output power of the jacking system 31 is reduced.
Example 2:
this embodiment differs from embodiment 1 in the structure and principle of the expansion assembly 72.
Referring to fig. 1, 2, and 6, in particular, in this embodiment, the expansion assembly 72 includes two flared angles 721, a hinge rod 725, an expansion rod 726, and an expansion screw 727; wherein, the two outer angle-expanding steel angles 721 are respectively welded and fixed at the two ends of the inner side of the inner supporting annular sealing steel belt 71; the hinge rod 725 is located on the symmetry plane between the two outer expansion angles 721; the two groups of expansion rods 726 are arranged at intervals along the length direction of the hinging rod 725, each group of expansion rods 726 comprises two expansion rods 726, the two expansion rods 726 are symmetrically and obliquely arranged, the top ends of the two expansion rods 726 are hinged to the hinging rod 725, and the bottom ends of the two expansion rods 726 are respectively hinged to the two outward expansion angle steels 721 towards one side; the expansion screw 727 is screwed to the hinge rod 725, and the expansion screw 727 abuts against the overlapping part of the two ends of the inner supporting type annular sealing steel belt 71.
The expansion screw 727 is rotated clockwise, the expansion screw 727 is abutted to the lap joint of the two ends of the inner support type annular sealing steel belt 71, the expansion screw 727 pushes the two outer expansion angle steels 721 to be away from each other through the expansion rod 726, and the two ends of the inner support type annular sealing steel belt 71 are driven to be away from each other, so that the inner support type annular sealing steel belt 71 expands outwards, and the outer side of the inner support type annular sealing steel belt 71 is abutted to the inner periphery of the flange 6; on the contrary, the expansion screw 727 is rotated anticlockwise, the expansion screw 727 is separated from the overlapping position of the two ends of the inner support type annular sealing steel belt 71, and the outer side of the inner support type annular sealing steel belt 71 is separated from the inner periphery of the flange 6 by tapping and vibrating the two outer expansion angle steels 721 through an external tool.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered by the scope of the application.
Claims (6)
1. A method for improving drainage capacity without interrupting old cover plate culvert-round pipe culvert of traffic is characterized by comprising the following steps: the method comprises the following steps:
s1, excavating a working pit: digging a working pit (1) at one side of the roadbed and at the end part of the old cover culvert (100);
s2, setting a jacking structure: an end wall (2) is arranged at the bottom of the working pit (1) and positioned at the outer side of the end part of the old cover plate culvert (100), a channel (21) for the round pipe culvert (200) to pass through is reserved in the end wall (2), a counter-force wall (3) is arranged at the bottom of the working pit (1) and positioned at the outer side of the end wall (2), and a jacking system (31) for pushing the round pipe culvert (200) to move and insert into the side wall of the working pit (1) is arranged on the counter-force wall (3);
s3, setting guide rails: a guide rail (4) is inserted into the side wall of the working pit (1), and the guide rail (4) is arranged at the top of the old cover culvert (100);
s4, jacking a round pipe culvert: firstly, hoisting a prefabricated round pipe culvert (200) through a channel (21) reserved by an end wall (2) through a hoisting system, enabling a guide rail (4) to be in sliding connection with the inner periphery of the round pipe culvert (200), and then jacking the round pipe culvert (200) into the side wall of a working pit (1) through a jacking system (31);
s5, removing old cover plates and culverts and soil: the old cover culvert (100) and soil positioned at the inner periphery of the round pipe culvert (200) are removed;
s6, connecting a round pipe culvert: firstly, hoisting a next round pipe culvert (200) through a channel (21) reserved by an end wall (2) through a hoisting system, connecting the next round pipe culvert (200) through a water stop ring (5) and a flange (6), jacking the next round pipe culvert (200) into the side wall of a working pit (1) through a jacking system (31), and circulating S5-S6;
s7, sealing a round pipe culvert: firstly, all the round culverts (200) are jacked to the side wall of the working pit (1), and then hot asphalt sealing joints are injected into joints of two adjacent round culverts (200) through a sealing system (7);
the flange (6) is an inner flange, and the flange (6) is provided with an avoidance position (61) which is matched with the guide rail (4); the sealing system (7) comprises an inner supporting type annular sealing steel belt (71) embedded in the inner periphery of the flange (6), an expansion assembly (72) and a pumping assembly, wherein two ends of the inner supporting type annular sealing steel belt (71) are mutually overlapped, two ends of the inner supporting type annular sealing steel belt (71) are provided with overlapping inclined planes (74), and the expansion assembly (72) is connected between two ends of the inner supporting type annular sealing steel belt (71) and is used for driving the inner supporting type annular sealing steel belt (71) to expand/contract outwards; the internal supporting type annular sealing steel belt (71) is provided with a feed inlet (75) and a discharge outlet (76), and the pumping assembly is communicated with the feed inlet (75) and is used for injecting hot asphalt into the joint of the two circular culverts (200); the outer side of the inner supporting type annular sealing steel belt (71) is fixedly provided with a positioning block (77) which is matched with the avoidance position (61) so that a discharge hole (76) is positioned at the topmost part of the inner supporting type annular sealing steel belt (71).
2. The method for improving drainage capacity without interrupting old cover plate culvert-to-round pipe culvert traffic according to claim 1, wherein the method comprises the following steps: the jacking system (31) comprises a plurality of hydraulic jacks (311) which are uniformly distributed along the center of the circular pipe culvert (200), the hydraulic jacks (311) are fixedly arranged on the inner side of the counter-force wall (3), and piston rods of the hydraulic jacks (311) are in butt joint with the circular pipe culvert (200).
3. The method for improving drainage capacity without interrupting old cover plate culvert-to-round pipe culvert traffic according to claim 1, wherein the method comprises the following steps: the expansion assembly (72) comprises two outer expansion angle steels (721) and two bidirectional screw rods (722) which are respectively fixedly arranged at two ends of the inner side of the inner supporting annular sealing steel belt (71), two ends of each bidirectional screw rod (722) are respectively arranged in connecting holes preset in the two outer expansion angle steels (721) in a penetrating mode, two ends of each bidirectional screw rod (722) are respectively connected with outer expansion bolts (723) in a threaded mode, the two outer expansion bolts (723) are respectively abutted to one side, facing the two outer expansion angle steels (721) mutually, two ends of each bidirectional screw rod (722) are respectively connected with inner shrinkage bolts (724) in a threaded mode, and the two inner shrinkage bolts (724) are respectively abutted to one side, deviating from the two outer expansion angle steels (721) mutually.
4. The method for improving drainage capacity without interrupting old cover plate culvert-to-round pipe culvert traffic according to claim 1, wherein the method comprises the following steps: the expansion assembly (72) comprises two outer expansion angle steels (721) which are respectively fixedly arranged at two ends of the inner side of the inner supporting annular sealing steel belt (71), a hinging rod (725) which is arranged between the two outer expansion angle steels (721), two groups of expansion rods (726) and expansion screws (727) which are arranged at intervals, each group of expansion rods (726) comprises two expansion rods (726), one ends of the expansion rods (726) are hinged to the hinging rod (725), the other ends of the expansion rods (726) are hinged to the two outer expansion angle steels (721) respectively, the expansion screws (727) are connected with the hinging rod (725) in a threaded mode, and the expansion screws (727) are abutted to the lap joint positions of the two ends of the inner supporting annular sealing steel belt (71).
5. The method for improving drainage capacity without interrupting old cover plate culvert-to-round pipe culvert traffic according to claim 1, wherein the method comprises the following steps: the guide rail (4) comprises a plurality of rail sections (41) connected end to end, the outer side of each rail section (41) is matched with the inner periphery of a circular culvert (200), the inner side of each rail section (41) is matched with the top edge angle of an old cover culvert (100), and the outer side of the front end and the inner side of the tail end of each rail section (41) are provided with splicing inclined planes (42); the splicing inclined plane (42) positioned at the outer side of the front end of the rail section (41) is provided with a connecting groove (43), and the splicing inclined plane (42) positioned at the inner side of the tail end of the rail section (41) is fixedly provided with a connecting rod (44) matched with the connecting groove (43).
6. The method for improving drainage capacity without interrupting old cover plate culvert-to-round pipe culvert traffic according to claim 1, wherein the method comprises the following steps: a plurality of uniformly distributed rolling grooves are formed in the inner periphery of a channel (21) of the end wall (2), and balls (22) abutted to the outer periphery of the circular pipe culvert (200) are embedded in each rolling groove in a rolling mode.
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| CN202210725568.4A CN115162220B (en) | 2022-06-24 | 2022-06-24 | Method for improving drainage capacity without interrupting transportation of old cover plate culvert to round pipe culvert |
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| US4405260A (en) * | 1981-06-22 | 1983-09-20 | Tepin Tsai | Method of constructing underpass across railway and highway without affecting normal traffic thereof |
| KR101318667B1 (en) * | 2013-05-20 | 2013-10-16 | 삼강종합건설(주) | The steel pipe propulsion system and method for the a movable reaction force member for agriculture waterway |
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| CN115162220A (en) | 2022-10-11 |
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