CN111851700B - Municipal rainwater and sewage pipeline construction method - Google Patents
Municipal rainwater and sewage pipeline construction method Download PDFInfo
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- CN111851700B CN111851700B CN202010548642.0A CN202010548642A CN111851700B CN 111851700 B CN111851700 B CN 111851700B CN 202010548642 A CN202010548642 A CN 202010548642A CN 111851700 B CN111851700 B CN 111851700B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
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Abstract
The invention discloses a municipal rainwater and sewage pipeline construction method, which comprises the following steps: prefabricating a required rainwater and sewage pipeline and a pipeline support, and calculating the depth, the width of the bottom of a groove, the slope gradient and the excavation width of the groove, wherein at least one group of convex edge parts are arranged on the outer wall of the rainwater and sewage pipeline; excavating and leveling a groove; a cement cushion layer is formed at the bottom of the groove in a spreading mode, a second limiting groove corresponding to the limiting lug is formed in the cement cushion layer, and a third hoisting groove is formed in the cement cushion layer; hoisting the pipeline support; and (5) hoisting the rain sewage pipeline. The invention can effectively overcome the problem that the hoisting belt is not easy to extract after the pipe is hoisted in place, and can ensure the pipeline to be accurately and stably installed.
Description
Technical Field
The invention relates to the field of municipal engineering. More particularly, the invention relates to a municipal rainwater and sewage pipeline construction method.
Background
With the rapid development of the urbanization process, the construction of the rain and sewage pipe network as an important urban infrastructure makes great progress. However, the rain and sewage pipe network has the characteristic of large short-time flow, so the investment cost of the corresponding pipe network system accounts for a considerable proportion of municipal investment. Therefore, the rain and sewage pipe network is optimally designed to the greatest extent, so that a large amount of investment cost can be reduced, and the optimal economic benefit can be obtained.
The prefabricated reinforced concrete rain sewage pipe has the characteristics of high strength and convenience in construction, and is widely applied to municipal engineering. At present in the construction of prefabricated reinforced concrete rainwater and sewage pipe, generally the excavator combines artifical low tube, and the rainwater and sewage pipe is laid in the both sides of town road more, and the field work face is less, leads to the tubular product hoist and mount back hoist and mount area of taking one's place to be difficult to the extraction, has the pipeline position location inaccurate at the in-process of low tube, needs artifical adjustment scheduling problem many times, and this has influenced construction speed on the one hand, and on the other hand also is difficult to satisfy higher construction quality's requirement.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide a municipal rainwater and sewage pipeline construction method, which can effectively solve the problem that a hoisting belt is not easy to extract after a pipe is hoisted in place, and can ensure that the pipeline is accurately and stably installed.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a municipal storm sewage pipeline construction method including:
firstly, prefabricating a required rainwater and sewage pipeline and a pipeline support in a factory according to design requirements, organizing a construction machine to enter a field, and calculating the depth, the bottom width, the slope gradient and the excavation width of a groove for accommodating the rainwater and sewage pipeline and the pipeline support according to the sizes of the rainwater and sewage pipeline and the pipeline support;
the outer wall of the rain and sewage pipeline is provided with at least one group of convex edge parts, each group of convex edge parts comprises two convex edges which are uniformly arranged at intervals along the same bus of the rain and sewage pipeline, the two convex edges of each group of convex edge parts are symmetrical along the central cross section of the rain and sewage pipeline, and the distance from each convex edge to the end part of the rain and sewage pipeline close to the convex edge part is larger than the width of a first hoisting belt for hoisting the rain and sewage pipeline;
the pipeline support comprises a rectangular base plate and a cuboid-shaped boss arranged at the center of the plate surface on one side of the base plate, the long sides of the base plate and the boss are parallel, the length of the long sides of the base plate and the boss is the same as that of the rainwater and sewage pipeline, the width of the boss is smaller than that of the base plate, an arc-shaped groove adapted to the rainwater and sewage pipeline is arranged on the upper end surface of the boss along the length direction, a plurality of first limiting grooves corresponding to two convex edges in each group of convex edge are formed in the wall of the arc-shaped groove respectively, two first hoisting grooves arranged along the width direction of the boss are further formed in the wall of the arc-shaped groove, the two first hoisting grooves are symmetrical along the central line of the long side of the boss, the width of each first hoisting groove is larger than that of each first hoisting belt, the depth of each first hoisting groove is not smaller than the thickness of each first hoisting belt, and a limiting convex block is arranged on the plate surface on the other side of the base plate, the side surface of the long edge of the base plate is provided with two second hoisting grooves along the direction vertical to the plate surface of the base plate, the two second hoisting grooves are symmetrical along the central line of the long edge of the base plate, the two second hoisting grooves on one side surface of the base plate are respectively opposite to the two second hoisting grooves on the other side surface of the base plate one by one, the width of each second hoisting groove is larger than the width of a second hoisting belt for hoisting the pipeline support, and the depth of each second hoisting groove is not smaller than the thickness of the second hoisting belt;
excavating and leveling a groove by using an excavator, and compacting the bottom of the groove by using a small-sized roller;
thirdly, backfilling and paving the bottom of the groove by using premixed lightweight concrete to form a cement cushion layer, wherein the width of the top surface of the cement cushion layer is the same as that of a base plate of the pipeline support, segmenting the cement cushion layer according to the length of the pipeline support, arranging a second limiting groove corresponding to the limiting lug on each segment of the cement cushion layer, arranging a third hoisting groove for communicating two opposite second hoisting grooves on different side surfaces of the base plate on each segment of the cement cushion layer, and enabling the width and the depth of the third hoisting groove to be the same as those of the second hoisting grooves;
step four, a second hoisting belt is used for simultaneously bypassing two opposite second hoisting grooves on different sides of the base plate, a crane is used for hoisting the second hoisting belt to place the pipeline support on the cement cushion layer in the groove, when the pipeline support is placed down, a second limiting groove on each section of the cement cushion layer is ensured to correspond to a limiting lug on the pipeline support, and the second hoisting belt is ensured to fall into a third hoisting groove;
fifthly, the second hoisting belt is drawn out, and cement slurry is poured into the third hoisting groove from the second hoisting groove until the third hoisting groove is filled;
determining a penetrating and winding position of a first hoisting belt on the rainwater and sewage pipeline according to the distance from the first hoisting groove to the close boss wide edge, hanging the first hoisting belt by a crane to place the rainwater and sewage pipeline in an arc-shaped groove on the pipeline support, and ensuring that the convex edge corresponds to the first limiting groove and the first hoisting belt falls in the first hoisting groove when the rainwater and sewage pipeline is lowered;
step seven, the first hoisting belt is drawn out, and cement slurry is poured into the first hoisting groove from the end face opening of the first hoisting groove until the first hoisting groove is filled;
step eight, vertically placing side templates on the base plate against the side faces of the bosses, placing an inverted right-angled triangular working table frame between the groove slope and the side templates to abut against the side templates, simultaneously adopting end templates at two ends of the side templates to form an enclosed area by enclosing with the side templates, performing concrete pouring and backfilling in the enclosed area, and removing the working table frame, the side templates and the end templates after concrete is initially set;
and step nine, after the concrete backfill layer is qualified, gravel is filled on two sides of the concrete backfill layer in a layered mode until the gravel is flush with the ground.
Preferably, there are two sets of convex edges, and after the rain sewage pipeline is placed on the pipeline support, the two sets of convex edges are symmetrical along the central line of the wide side of the boss.
Preferably, the contour line of the cross section of the rain and sewage pipeline of the convex edge is a right triangle, and when the rain and sewage pipeline is placed on the pipeline support, two right-angle surfaces of the convex edge are horizontal and vertical respectively.
Preferably, the arc length of the arc-shaped groove on the cross section of the boss does not exceed 1/4 of the outer circumference of the rainwater and sewage pipeline.
Preferably, the second limiting groove and the third hoisting groove are formed by prepressing a block body coated with a release agent before the cement cushion concrete is not solidified.
Preferably, the third hoisting groove is formed by cutting after the cement cushion concrete is solidified, and the groove wall and the groove bottom of the third hoisting groove remain rough surfaces.
The invention at least comprises the following beneficial effects: according to the invention, the third hoisting groove is formed in the cement cushion layer, the second hoisting groove is formed in the pipeline support, so that the second hoisting belt for hoisting the pipeline support can be simply extracted, meanwhile, the second limiting groove is formed in the cement cushion layer, the pipeline support can be quickly and accurately found to be placed, and the pipeline support is not easy to slide through the embedding of the second limiting groove and the upper limit of the lower end surface of the pipeline support into the convex block, so that the installation accuracy in the construction process is higher, the first hoisting groove is formed in the pipeline support, so that the first hoisting belt for hoisting the rainwater and sewage pipeline can be conveniently extracted, and the first limiting groove in the pipeline support is matched with the convex edge part in the rainwater and sewage pipeline, so that the rainwater and sewage pipeline can be prevented from sliding. In addition, the first limiting groove is arranged on the pipeline support, the limiting block is arranged on the rainwater and sewage pipeline, the reverse arrangement is not needed, and the problem that the service life of the rainwater and sewage pipeline is influenced because the first limiting groove weakens the wall thickness of the rainwater and sewage pipeline is avoided.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a top view of a cement mat according to the present invention;
FIG. 2 is a front view of the cement mat of the present invention at section A-A;
FIG. 3 is a front view of the cement mat of the present invention in section B-B;
FIG. 4 is a top view of the pipe support of the present invention after it has been placed on a cement pad;
FIG. 5 is a front view of a C-C section of the pipe support of the present invention after placement on a cement pad;
FIG. 6 is a front view of a D-D section of the pipe support of the present invention after placement on a cement pad;
FIG. 7 is a front view of the rain sewage pipe of the present invention placed on the pipe support by the first sling;
fig. 8 is a front view of the work bench and sideforms of the present invention positioned on a pipe support during construction.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 8, the invention provides a municipal rainwater and sewage pipeline construction method, which comprises the following steps:
firstly, prefabricating a required rainwater and sewage pipeline 1 and a pipeline support 2 in a factory according to design requirements, organizing a construction machine to enter a field, and calculating the depth, the bottom width, the slope gradient and the excavation width of a groove 3 for accommodating the rainwater and sewage pipeline 1 and the pipeline support 2 according to the sizes of the rainwater and sewage pipeline 1 and the pipeline support 2;
the outer wall of the rain and sewage pipeline 1 is provided with at least one group of convex edges 101, each group of convex edges 101 comprises two convex edges 101 which are uniformly arranged along the same bus of the rain and sewage pipeline 1 at intervals, the two convex edges 101 of each group of convex edges 101 are symmetrical along the central cross section of the rain and sewage pipeline 1, the distance from each convex edge 101 to the end part of the rain and sewage pipeline 1 close to the convex edge 101 is larger than the width of a first hoisting belt 4 for hoisting the rain and sewage pipeline 1, and the convex edges 101 and the rain and sewage pipeline 1 are integrally formed;
the pipeline support 2 comprises a rectangular base plate 201 and a cuboid-shaped boss 202 arranged at the center of the plate surface at one side of the base plate 201, the long sides of the base plate 201 and the boss 202 are parallel, the length of the long sides of the base plate and the boss 202 is the same as that of the rainwater and sewage pipeline 1, the width of the boss 202 is smaller than that of the base plate 201, an arc-shaped groove 203 adapted to the rainwater and sewage pipeline 1 is arranged on the upper end surface of the boss 202 along the length direction, a plurality of first limiting grooves 204 corresponding to two convex edges 101 in each group of convex edges 101 are arranged on the groove wall of the arc-shaped groove 203, two first hoisting grooves 205 arranged along the width direction of the boss 202 are further arranged on the groove wall of the arc-shaped groove 203, the two first hoisting grooves 205 are symmetrical along the central line of the long side of the boss 202, the width of the first hoisting groove 205 is larger than that of the first hoisting belt 4, and the depth of the first hoisting groove 205 is not smaller than the thickness of the first hoisting belt 4, the other side plate surface of the backing plate 201 is provided with a limiting bump 206, the side surface of the long edge of the backing plate 201 is provided with two second hoisting grooves 207 along the direction vertical to the plate surface of the backing plate 201, the two second hoisting grooves 207 are symmetrical along the central line of the long edge of the backing plate 201, the two second hoisting grooves 207 on one side surface of the backing plate 201 are respectively opposite to the two second hoisting grooves 207 on the other side surface of the backing plate 201 one by one, the width of each second hoisting groove 207 is greater than the width of a second hoisting belt 5 for hoisting the pipeline support 2, and the depth of each second hoisting groove 207 is not less than the thickness of the second hoisting belt 5;
excavating and leveling the groove 3 by using an excavator, and compacting the bottom of the groove by using a small-sized roller;
thirdly, backfilling and paving the bottom of the groove by using premixed lightweight concrete to form a cement cushion layer 6, wherein the width of the top surface of the cement cushion layer 6 is the same as that of the cushion plate 201 of the pipeline support 2, segmenting the cement cushion layer 6 according to the length of the pipeline support 2, arranging a second limiting groove 601 corresponding to the limiting bump 206 on each segment of the cement cushion layer 6, arranging a third hoisting groove 602 for communicating two opposite second hoisting grooves 207 on different side surfaces of the cushion plate 201 on each segment of the cement cushion layer 6, and enabling the width and the depth of the third hoisting groove 602 to be the same as those of the second hoisting grooves 207;
step four, the second hoisting belt 5 is used for simultaneously bypassing two opposite second hoisting grooves 207 on different side surfaces of the base plate 201, the second hoisting belt 5 is hung by a crane to place the pipeline support 2 on the cement cushion layer 6 in the groove 3, when the pipeline support 2 is placed down, the second limiting groove 601 on each section of the cement cushion layer 6 is ensured to correspond to the limiting lug 206 on the pipeline support 2, and the second hoisting belt 5 is ensured to fall into a third hoisting groove 602;
fifthly, the second hoisting belt 5 is drawn out, and cement paste is poured into the third hoisting groove 602 from the second hoisting groove 207 until the third hoisting groove 602 is filled;
sixthly, determining the penetrating position of the first hoisting belt 4 on the rainwater and sewage pipeline 1 according to the distance from the first hoisting groove 205 to the wide edge of the boss 202 close to the first hoisting groove, hanging the first hoisting belt 4 by a crane to place the rainwater and sewage pipeline 1 in the arc-shaped groove 203 on the pipeline support 2, ensuring that the rib 101 corresponds to the first limiting groove 204 when the rainwater and sewage pipeline 1 is lowered, and ensuring that the first hoisting belt 4 falls in the first hoisting groove 205;
step seven, the first hoisting belt 4 is drawn out, and cement paste is poured into the first hoisting groove 205 from the opening on the end face of the first hoisting groove 205 until the first hoisting groove 205 is filled and leveled;
step eight, vertically placing a side template 7 on the base plate 201 against the side face of the boss 202, placing an inverted right-angled triangular working table frame 8 between the slope of the groove 3 and the side template 7 to abut against the side template 7, simultaneously adopting end templates at two ends of the side template 7 to form an enclosed area 9 by enclosing with the side template 7, pouring and backfilling concrete in the enclosed area 9, and removing the working table frame 8, the side template 7 and the end template after the concrete is initially set;
and step nine, after the concrete backfill layer is qualified, gravel is filled on two sides of the concrete backfill layer in a layered mode until the gravel is flush with the ground.
In the implementation process of the embodiment, the third hoisting groove 602 is formed in the cement cushion 6, the second hoisting groove 207 is formed in the pipeline support 2, so that the second hoisting belt 5 for hoisting the pipeline support 2 is simply pulled out, meanwhile, the second limiting groove 601 is formed in the cement cushion 6, the pipeline support 2 can be quickly and accurately placed, the pipeline support 2 is not easy to slide due to the fact that the second limiting groove 601 is embedded with the upper limit of the lower end face of the pipeline support 2 into the lug, therefore, the installation accuracy of the construction process is higher, the first hoisting groove 205 is formed in the pipeline support 2, so that the first hoisting belt 4 for hoisting the rainwater and sewage pipeline 1 can be conveniently pulled out, and the first limiting groove 204 in the pipeline support 2 is matched with the rib 101 in the rainwater and sewage pipeline 1, and the rainwater and sewage pipeline 1 can be prevented from sliding. In addition, the first limiting groove 204 is arranged on the pipeline support 2, and the limit is that the projection is arranged on the rainwater and sewage pipeline 1, but not vice versa, so as to avoid that the first limiting groove 204 weakens the wall thickness of the rainwater and sewage pipeline 1 and influences the service life of the rainwater and sewage pipeline 1. Simultaneously, place inverted right-angled triangle's work bench 8 outside side form 7, both can support side form 7, prevent when enclosing and closing 9 grouts, the grout oozes, and inverted right-angled triangle's work bench 8's top surface can also supply constructor to walk simultaneously, work such as the vibration after the convenient grout, visual inspection.
In another embodiment, there are two sets of ribs 101, and when the rain water pipe 1 is placed on the pipe support 2, the two sets of ribs 101 are symmetrical along the center line of the wide side of the boss 202. Compared with a single group of convex ribs 101, the two groups of convex ribs 101 enable the rain sewage pipeline 1 not to move easily in the left and right directions of the section of the rain sewage pipeline, and the mounting accuracy and the stability are better.
In another embodiment, the contour line of the cross section of the protruding ridge 101 in the rain and sewage pipeline 1 is a right triangle, and when the rain and sewage pipeline 1 is placed on the pipeline support 2, the two right-angled surfaces of the protruding ridge 101 are horizontal and vertical, respectively. Therefore, the rib 101 can be vertically placed in the first limit groove 204, and the installation is simple.
In another embodiment, the arc length of the arc-shaped slot 203 in the cross section of the projection 202 does not exceed 1/4 of the outer circumference of the storm drain 1. This is because the excessively long arc of the cross-section of the arc-shaped slot 203 means that the height of the boss 202 is higher, the cost is higher, and the effect on the stability of the storm sewage conduit 1 is not much different from that when the arc length does not exceed 1/4, which is the outer circumference of the storm sewage conduit 1, so the present embodiment is limited in terms of cost saving.
In another embodiment, the second limiting groove 601 and the third hanging groove 602 are pre-pressed before the concrete of the cement cushion 6 is not solidified by using a block body coated with a release agent. Can avoid later stage to excavate the grooving like this, waste time and energy more, but because the groove surface of preforming is not as rough as the grooving, when the slip casting to third hoist and mount groove 602, the combination of grout solidification back and cement cushion 6 is firm inadequately.
In another embodiment, the third hanging groove 602 is cut after the concrete of the cement mat 6 is solidified, and burrs remain on the groove wall and the groove bottom of the third hanging groove 602. In this way, when the third hoisting groove 602 is grouted, the cement paste is more firmly bonded to the cement mat 6 after setting.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (6)
1. The municipal rainwater and sewage pipeline construction method is characterized by comprising the following steps:
firstly, prefabricating a required rainwater and sewage pipeline and a pipeline support in a factory according to design requirements, organizing a construction machine to enter a field, and calculating the depth, the bottom width, the slope gradient and the excavation width of a groove for accommodating the rainwater and sewage pipeline and the pipeline support according to the sizes of the rainwater and sewage pipeline and the pipeline support;
the outer wall of the rain and sewage pipeline is provided with at least one group of convex edge parts, each group of convex edge parts comprises two convex edges which are uniformly arranged at intervals along the same bus of the rain and sewage pipeline, the two convex edges of each group of convex edge parts are symmetrical along the central cross section of the rain and sewage pipeline, and the distance from each convex edge to the end part of the rain and sewage pipeline close to the convex edge part is larger than the width of a first hoisting belt for hoisting the rain and sewage pipeline;
the pipeline support comprises a rectangular base plate and a cuboid-shaped boss arranged at the center of the plate surface on one side of the base plate, the long sides of the base plate and the boss are parallel, the length of the long sides of the base plate and the boss is the same as that of the rainwater and sewage pipeline, the width of the boss is smaller than that of the base plate, an arc-shaped groove adapted to the rainwater and sewage pipeline is arranged on the upper end surface of the boss along the length direction, a plurality of first limiting grooves corresponding to two convex edges in each group of convex edge are formed in the wall of the arc-shaped groove respectively, two first hoisting grooves arranged along the width direction of the boss are further formed in the wall of the arc-shaped groove, the two first hoisting grooves are symmetrical along the central line of the long side of the boss, the width of each first hoisting groove is larger than that of each first hoisting belt, the depth of each first hoisting groove is not smaller than the thickness of each first hoisting belt, and a limiting convex block is arranged on the plate surface on the other side of the base plate, the side surface of the long edge of the base plate is provided with two second hoisting grooves along the direction vertical to the plate surface of the base plate, the two second hoisting grooves are symmetrical along the central line of the long edge of the base plate, the two second hoisting grooves on one side surface of the base plate are respectively opposite to the two second hoisting grooves on the other side surface of the base plate one by one, the width of each second hoisting groove is larger than the width of a second hoisting belt for hoisting the pipeline support, and the depth of each second hoisting groove is not smaller than the thickness of the second hoisting belt;
excavating and leveling a groove by using an excavator, and compacting the bottom of the groove by using a small-sized roller;
thirdly, backfilling and paving the bottom of the groove by using premixed lightweight concrete to form a cement cushion layer, wherein the width of the top surface of the cement cushion layer is the same as that of a base plate of the pipeline support, segmenting the cement cushion layer according to the length of the pipeline support, arranging a second limiting groove corresponding to the limiting lug on each segment of the cement cushion layer, arranging a third hoisting groove for communicating two opposite second hoisting grooves on different side surfaces of the base plate on each segment of the cement cushion layer, and enabling the width and the depth of the third hoisting groove to be the same as those of the second hoisting grooves;
step four, a second hoisting belt is used for simultaneously bypassing two opposite second hoisting grooves on different sides of the base plate, a crane is used for hoisting the second hoisting belt to place the pipeline support on the cement cushion layer in the groove, when the pipeline support is placed down, a second limiting groove on each section of the cement cushion layer is ensured to correspond to a limiting lug on the pipeline support, and the second hoisting belt is ensured to fall into a third hoisting groove;
fifthly, the second hoisting belt is drawn out, and cement slurry is poured into the third hoisting groove from the second hoisting groove until the third hoisting groove is filled;
determining a penetrating and winding position of a first hoisting belt on the rainwater and sewage pipeline according to the distance from the first hoisting groove to the close boss wide edge, hanging the first hoisting belt by a crane to place the rainwater and sewage pipeline in an arc-shaped groove on the pipeline support, and ensuring that the convex edge corresponds to the first limiting groove and the first hoisting belt falls in the first hoisting groove when the rainwater and sewage pipeline is lowered;
step seven, the first hoisting belt is drawn out, and cement slurry is poured into the first hoisting groove from the end face opening of the first hoisting groove until the first hoisting groove is filled;
step eight, vertically placing side templates on the base plate against the side faces of the bosses, placing an inverted right-angled triangular working table frame between the groove slope and the side templates to abut against the side templates, simultaneously adopting end templates at two ends of the side templates to form an enclosed area by enclosing with the side templates, performing concrete pouring and backfilling in the enclosed area, and removing the working table frame, the side templates and the end templates after concrete is initially set;
and step nine, after the concrete backfill layer is qualified, gravel is filled on two sides of the concrete backfill layer in a layered mode until the gravel is flush with the ground.
2. The municipal storm sewer piping according to claim 1, wherein there are two sets of said ribs, and wherein said two sets of ribs are symmetrical about the center line of said flange width when the storm sewer piping is seated on the piping support.
3. The municipal rainwater and sewer piping construction method of claim 2, wherein said ridge has a right triangle outline at the cross-section of said rainwater and sewer piping, and wherein said right triangle outline is horizontal and vertical when said rainwater and sewer piping is placed on said piping support.
4. The municipal storm sewer construction method of claim 1, wherein said arcuate slot has an arc length in said boss section of no more than 1/4 times the outer circumference of said storm sewer.
5. The municipal rainwater and sewage pipeline construction method of claim 1, wherein the second retaining groove and the third lifting groove are pre-pressed with a block coated with a release agent before the cement pad concrete is not set.
6. The municipal rainwater pipeline construction method according to claim 1, wherein said third lifting groove is cut after the cement pad concrete is set, and the walls and bottom of the third lifting groove remain roughened.
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| CN103114643A (en) * | 2013-03-04 | 2013-05-22 | 济南城建集团有限公司 | Large-caliber drainage pipeline construction assembly and construction method thereof |
| CN104895174A (en) * | 2015-06-02 | 2015-09-09 | 杭州江润科技有限公司 | Construction method of large-diameter rain sewage pipeline assembling type component structure |
| CN107401207A (en) * | 2017-09-11 | 2017-11-28 | 温州东怡园林建设有限公司 | The construction method of drainage pipeline |
| CN108204030A (en) * | 2017-12-13 | 2018-06-26 | 苍南县交通建设工程有限公司 | Sewage conduct mounting structure and its construction method |
| CN109440899A (en) * | 2018-12-18 | 2019-03-08 | 温州金德市政建设有限公司 | Construction of sewer component and its construction method |
| CN111088844A (en) * | 2019-12-30 | 2020-05-01 | 广东景源建设工程有限公司 | Municipal rainwater pipeline assembly module and construction method |
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