CN109577456B - Construction method of ecological prefabricated assembly type reinforced concrete rapid trough drainage system - Google Patents
Construction method of ecological prefabricated assembly type reinforced concrete rapid trough drainage system Download PDFInfo
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- CN109577456B CN109577456B CN201811491221.8A CN201811491221A CN109577456B CN 109577456 B CN109577456 B CN 109577456B CN 201811491221 A CN201811491221 A CN 201811491221A CN 109577456 B CN109577456 B CN 109577456B
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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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- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/227—Gutters; Channels ; Roof drainage discharge ducts set in sidewalks
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- E03—WATER SUPPLY; SEWERAGE
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Abstract
The invention relates to a construction method of an ecological prefabricated assembly type reinforced concrete rapid trough drainage system, which mainly comprises the following construction steps: the method comprises the steps of chute prefabrication, grass planting mold box prefabrication, groove construction, stilling step installation, chute standard prefabrication section installation, prefabricated sump pit installation, grass planting mold box installation and spherical detachable filter screen installation. Adopt "shingle formula" unsmooth hasp together between the prefabricated section of rapid trough to adopt the whole bundle of wearing of steel cable to be in the same place, again with the steel cable both ends drawknot on the pre-buried pull ring of prefabricated sump, at last at the top embedding grass planting diaphragm capsule of the prefabricated section of rapid trough. The rapid trough drainage system adopts a prefabricated design concept, has the characteristics of convenience and rapidness in installation, high construction speed, ecological environment friendliness and the like, solves the problem that drainage causes water damage such as excavation, scouring and the like of a road foundation due to water seepage, water leakage, settlement deformation and the like of a masonry rapid trough, and has good economic and technical benefits.
Description
Technical Field
The invention relates to a construction method of an ecological prefabricated assembly type reinforced concrete rapid trough drainage system, belongs to the field of highway engineering, and is suitable for vertical drainage construction at abrupt slopes of embankments and cutting.
Background
In highway engineering, the rapid trough is mainly used for draining water and achieving the purpose of slowing down the water flow speed, a great protection effect is achieved on a highway subgrade, whether the structure of the rapid trough is reasonable or not is directly related to the safety of the subgrade, the drainage rapid trough of a embankment side slope mortar rubble structure is usually adopted in the prior construction, and because the rubble is difficult to be unified in specification and the technical workers of a stone-laying team are lacked, the quality of a construction process is difficult to control and guarantee, the drainage rapid trough is easy to generate the phenomena that mortar is not full, crack is formed, crack occurs, the subgrade is washed, the subgrade is emptied, and even serious people cause subgrade settlement deformation and collapse.
Therefore, in order to effectively prevent the problem that the seepage water easily occurs in the mortar rubble torrent tank to cause the damage of the water on the side slope of the roadbed, the development of the torrent tank which is convenient and fast to construct and reliable in quality is necessary.
Disclosure of Invention
The invention aims to solve the problems of incomplete mortar, crack shedding, water seepage, water leakage, easy deformation, cracking, roadbed settlement deformation, collapse and the like of the traditional embankment side slope mortar rubble torrent chute, and provides a construction method of an ecological prefabricated reinforced concrete torrent chute drainage system.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
the prefabricated assembled reinforced concrete rapid trough drainage system of ecotype, its characterized in that: the rapid-flow groove prefabricated section comprises a rapid-flow groove standard prefabricated section, a rapid-flow groove non-standard prefabricated section, a steel cable, a prefabricated water collecting pit, a force dissipation step, a grass planting mold box, a spherical detachable filter screen, a gravel cushion layer and waterproof geotextile; the bottom of the inner surface of one end of the standard prefabricated section of the rapid trough is provided with a bulge, the bottom of the outer surface of the other end of the standard prefabricated section of the rapid trough is provided with a groove, and the bottom of the outer surface of the standard prefabricated section of the rapid trough is uniformly provided with anti-slip teeth; one end of the rapid trough non-standard prefabricated section is provided with a hook, the bottom of the outer surface of the other end of the rapid trough non-standard prefabricated section is provided with a groove, and the bottom of the outer surface of the rapid trough non-standard prefabricated section is uniformly provided with anti-slip teeth; steel cable holes are reserved on two sides of the anti-sliding teeth; the tops of the standard prefabricated section and the nonstandard prefabricated section of the rapid trough are designed as tongue-and-groove joints, and the top of the standard prefabricated section and the top of the nonstandard prefabricated section of the rapid trough are embedded into a grass planting mold box; the grass planting mould box is hollow, the bottom end surface of the grass planting mould box forms an included angle with the horizontal plane, and the upper end surface of the grass planting mould box is parallel to the horizontal plane; the standard prefabricated section of rapid trough and the non-standard prefabricated section of rapid trough adopt "shingle type" unsmooth hasp together to adopt the whole bunch of steel cable together, steel cable both ends drawknot is on the pull ring of prefabricated sump.
And force eliminating sills are arranged at the bottoms of the inner surfaces of the standard prefabricated section and the non-standard prefabricated section of the rapid trough in a staggered manner.
The prefabricated sump pit set up in rapid trough water inlet position, the non-standard prefabricated section of rapid trough is fixed in the lateral wall of prefabricated sump pit through the couple.
The non-standard prefabricated section of rapid trough installs globular filter screen of dismantling in water inlet position, rapid trough delivery port position sets up the power dissipation step.
The spherical detachable filter screen is bound on the fixing clamp by adopting a steel wire and is fixed on the side wall of the grass planting mold box and the side wall of the non-standard prefabricated section of the rapid trough through the fixing clamp.
The fixing clamp is connected with the middle clamping plate and the two side clamping plates through the fixing bolts, the two side clamping plates are movable, the two side clamping plates can be fixed through screwing the fixing bolts, and rubber pads are arranged at the end parts of the inner walls of the two side clamping plates.
The construction method of the ecological prefabricated assembly type reinforced concrete rapid trough drainage system is characterized by comprising the following steps of:
step one, prefabricating a rapid trough: according to the special structure of the rapid trough prefabricating section, a rapid trough standard prefabricating section mould and a rapid trough non-standard prefabricating section mould are respectively designed and manufactured, the moulds are divided into an inner side template and an outer side template, and are assembled together by bolts, the moulds are made of steel plates and provided with pouring openings, and back ridges are uniformly arranged on the inner side and the outer side of the moulds so as to ensure the integral stability of the moulds; brushing a release agent in the moulds of the standard prefabricated section and the non-standard prefabricated section of the rapid trough, configuring reinforcing steel bars according to the design, and arranging a concrete protective layer cushion block when the moulds enter the moulds; after the reinforcement is arranged in the mold, fixing the inner side template and the outer side template of the mold together through bolts, pouring concrete into the pouring port and performing vibration molding;
step two, prefabricating a grass planting mold box: the mould for manufacturing the grass planting mould box according to the design size is divided into an inner side mould plate and an outer side mould plate, the inner side mould plate and the outer side mould plate are assembled together by bolts, the mould is manufactured by adopting a steel plate and is provided with a filling opening, and back ridges are uniformly arranged on the inner side and the outer side of the mould so as to ensure the integral stability of the mould; brushing a release agent in a mould of the grass planting mould box, fixing an inner side template and an outer side template of the mould together through bolts, pouring concrete into a pouring opening, and performing vibration molding;
step three, groove construction: before installation, measuring and paying off the position of the rapid trough, carrying out layered excavation and compacting of the groove in place according to paying off results, and ensuring that the bottom of the groove is flat and solid; waterproof geotextile is laid in the groove, so that the waterproof geotextile is laid smoothly, and the seam is welded compactly; paving broken stone cushion layers on the paved waterproof geotextile in a uniform and layered manner and compacting the broken stone cushion layers in place until the designed elevation is reached;
step four, force eliminating step installation: firstly, constructing a concrete foundation with a stilling step at the water outlet of the rapid trough, and installing and fixing the stilling step at the designed water outlet;
fifthly, installing a standard prefabricated section of the rapid trough: installing rapid flow groove prefabricated sections section by section from bottom to top, wherein before the first rapid flow groove standard prefabricated section is installed, a steel cable firstly penetrates from a steel cable hole on one side of a sliding stopping tooth at the bottom of the first rapid flow groove standard prefabricated section from top to bottom and then penetrates from a steel cable hole on the other side of the sliding stopping tooth at the bottom of the first rapid flow groove standard prefabricated section from bottom to top, and then, after the first rapid flow groove standard prefabricated section is positioned and fixed, backfilling and compacting the surrounding filling soil in a layered manner; when the second section rapid trough standard prefabricated section is installed, firstly, the second section rapid trough standard prefabricated section and the first section rapid trough standard prefabricated section are buckled together in a 'shingled' concave-convex mode and fixed, then, two ends of a steel cable penetrate through steel cable holes of the sliding stopping teeth at the bottom of the second section rapid trough standard prefabricated section from bottom to top, and filling and compacting the surrounding filling soil layer by layer; and analogizing in turn until all the standard prefabricated sections of the rapid trough are installed;
step six, mounting a prefabricated sump: after the installation of the standard prefabricated section of the rapid trough is finished, the prefabricated water collecting pit is installed at the designed water inlet position, and the surrounding filling soil is compacted through layered backfilling; after the prefabricated sump pit is installed, fixing a reverse hook of the non-standard prefabricated section of the rapid trough on the side wall of the prefabricated sump pit, buckling the reverse hook with the standard prefabricated section of the final rapid trough by adopting a 'imbricate' concave-convex manner, then enabling two ends of the steel cable to penetrate through steel cable holes of a sliding-stopping tooth at the bottom of the non-standard prefabricated section of the rapid trough from bottom to top, then tying two ends of the steel cable on two pre-embedded pull rings of the side wall of the prefabricated sump pit, and finally backfilling and compacting the surrounding filling soil in a layered manner;
seventhly, installing a grass planting mold box: embedding the grass planting mould boxes in the grooves and the tongues of the standard prefabricated section and the nonstandard prefabricated section of the rapid trough one by one from bottom to top, and after the grass planting mould boxes are installed, filling planting soil in the grass planting mould boxes and carrying out greening;
step eight, installing a spherical detachable filter screen: the spherical detachable filter screen is connected with the two side clamping plates of the fixing clamp through the steel wire, the two side clamping plates are further fixed through the fixing bolts, and the two side clamping plates are fixed on the side wall of the grass planting mold box and the side wall of the non-standard prefabricated section of the rapid trough.
The invention has the following characteristics and beneficial effects:
(1) the standard prefabricated section of the rapid trough and the non-standard prefabricated section of the rapid trough can be produced industrially, standardizedly and professionally, the problems that the sizes of the stone mortalites in the conventional embankment side slope stone rapid trough are not uniform, the rapid trough is easy to settle, deform and crack and the like are solved, the deformation resistance, the scouring resistance and the leakage resistance are higher, and the maintenance and the replacement are more convenient in later-period use; meanwhile, a 'tile-folded' concave-convex hasp is realized between the standard prefabricated section of the rapid trough and the non-standard prefabricated section of the rapid trough through the arranged bulges and grooves, and the steel cable is integrally penetrated and bound, so that the connection strength between the components is stronger;
(2) the bottom of the inner surfaces of the standard prefabricated section and the non-standard prefabricated section of the rapid trough is provided with a stilling threshold, and the position of the water outlet is provided with a stilling step, so that the water flow energy can be effectively reduced, and the scouring damage of water flow to the rapid trough is reduced; the anti-sliding teeth are arranged at the bottom of the outer surfaces of the standard prefabricated section and the non-standard prefabricated section of the rapid trough, so that the prefabricated section can be effectively prevented from sliding along with the gradient, and the construction safety and the stability of the rapid trough are improved;
(3) the torrent chute standard prefabricated section, the torrent chute non-standard prefabricated section and the grass planting mould box are all generated by factory prefabrication, the field operation amount is effectively reduced compared with the traditional embankment side slope mortar rubble torrent chute construction, and the manufacturing cost of the torrent chute prefabricated section is far lower than that of the mortar rubble;
(4) the top parts of the standard prefabricated section and the nonstandard prefabricated section of the rapid trough are embedded into the grass planting mold box, and the rapid trough is filled with soil for planting, so that compared with the traditional embankment side slope mortar rubble rapid trough, the rapid trough is more ecological and environment-friendly, and meanwhile, the attractiveness of the rapid trough is improved;
(5) the spherical filter screen of dismantling of rapid trough water inlet position installation, and then effective filtration water impurity avoids the rapid trough to block up, and the filter screen can be dismantled simultaneously, has made things convenient for the maintenance clearance in later stage.
Drawings
FIG. 1 is a sectional view of an eco-type prefabricated assembly reinforced concrete rapid trough drainage system;
FIG. 2 is a plan view of an eco-type prefabricated assembly reinforced concrete rapid trough drainage system;
FIG. 3 is a plan view of a standard precast segment of a chute;
FIG. 4 is a sectional view of a standard precast segment A-A of a chute;
FIG. 5 is a sectional view of a standard precast section B-B of the chute;
FIG. 6 is a cross-sectional view of a standard precast segment C-C of the chute;
FIG. 7 is a D-D section of a standard prefabricated section of the chute;
FIG. 8 is a schematic view of a spherical detachable filter screen;
FIG. 9 is a schematic view of the retainer clip opening;
fig. 10 is a schematic view of the closure of the retention clip.
In the figure: 1. the rapid trough comprises a standard prefabricated section of a rapid trough, 2 parts of anti-slip teeth, 3 parts of a force eliminating sill, 4 parts of a hook, 5 parts of a rabbet, 6 parts of a protrusion, 7 parts of a groove, 8 parts of a steel cable, 9 parts of a pull ring, 10 parts of a grass planting mold box, 11 parts of a prefabricated water collecting pit, 12 parts of a force eliminating step, 13 parts of a spherical detachable filter screen, 14 parts of a gravel cushion layer, 15 parts of waterproof geotextile, 16 parts of steel cable holes, 17 parts of a non-standard prefabricated section of the rapid trough, 18 parts of a road shoulder, 19 parts of a fixing clamp, 20 parts of a steel wire, 21 parts of a middle clamp plate, 22 parts of two side clamp plates, 23 parts of a.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, and the following examples are illustrative of the present invention and are not limited to the following examples. And (3) constructing a drainage system of the slope rapid trough of the roadbed slope of a certain highway, wherein the slope of the roadbed slope is beta, and adopting a construction method of an ecological prefabricated reinforced concrete rapid trough drainage system.
Referring to the attached drawings 1 and 2, the ecological prefabricated assembly type reinforced concrete rapid trough drainage system comprises a rapid trough standard prefabricated section 1, a rapid trough non-standard prefabricated section 17, a steel cable 8, a prefabricated water collecting pit 11, a stilling step 12, a grass planting mold box 10, a spherical detachable filter screen 13, a gravel cushion layer 14 and waterproof geotextile 15; the bottom of the inner surface of one end of the rapid trough standard prefabricated section 1 is provided with a bulge 6, the bottom of the outer surface of the other end of the rapid trough standard prefabricated section is provided with a groove 7, and the bottom of the outer surface of the rapid trough standard prefabricated section is uniformly provided with anti-slip teeth 2; one end of the rapid trough non-standard prefabricated section 17 is provided with a hook 4, the bottom of the outer surface of the other end is provided with a groove 7, and the bottom of the outer surface is uniformly provided with anti-slip teeth 2; steel cable holes 16 are reserved on two sides of the anti-sliding tooth 2; the tops of the standard prefabricated section 1 and the non-standard prefabricated section 17 of the rapid trough are designed as the tongue-and-groove 5, and the top of the standard prefabricated section is embedded into the grass planting mold box 10; the bottom parts of the inner surfaces of the standard prefabricated section 1 of the rapid trough and the non-standard prefabricated section 17 of the rapid trough are alternately provided with force eliminating sills 3; the grass planting mould box 10 is hollow, the bottom end surface of the grass planting mould box forms an included angle beta with the horizontal plane, and the upper end surface of the grass planting mould box is parallel to the horizontal plane; the standard prefabricated section 1 of the rapid trough and the non-standard prefabricated section 17 of the rapid trough are buckled together in a 'shingled' concave-convex mode, a steel cable 8 is integrally threaded together, and two ends of the steel cable 8 are tied on pull rings 9 of a prefabricated sump 11; the prefabricated sump 11 is arranged at the position of the water inlet of the rapid trough, and the non-standard prefabricated section 17 of the rapid trough is fixed on the side wall of the prefabricated sump 11 through the hook 4; the non-standard prefabricated section 17 of rapid trough installs spherical detachable filter screen 13 in the water inlet position, and the rapid trough delivery port position sets up power dissipation step 12.
As shown in fig. 3, 4, 5, 6 and 7, a bulge 6 is arranged at the bottom of the inner surface of one end of the standard prefabricated section 1 of the rapid trough, a groove 7 is arranged at the bottom of the outer surface of the other end of the standard prefabricated section, anti-sliding teeth 2 are uniformly arranged at the bottoms of the outer surfaces of the anti-sliding teeth, and steel cable holes 16 are reserved at two sides of each anti-sliding tooth 2; the top of the standard prefabricated section 1 of the rapid trough is designed as a rabbet 5, and a grass planting mould box 10 can be embedded into the top of the standard prefabricated section; and force eliminating sills 3 are arranged at the bottom of the inner surface of the standard prefabricated section 1 of the rapid trough in a staggered manner.
As shown in fig. 8, 9 and 10, prefabricated sump 11 is located at the inlet of the rapid trough, and non-standard prefabricated section 17 of the rapid trough is fixed to the side wall of prefabricated sump 11 by hooks 4; the spherical detachable filter screen 13 is bound on a fixing clamp 19 by adopting a steel wire and is fixed on the side wall of the grass planting mould box 10 and the side wall of the rapid trough non-standard prefabricated section 17 through the fixing clamp 19; the fixing clamp 19 is connected with the middle clamping plate 21 and the two side clamping plates 22 through fixing bolts 23, the two side clamping plates 22 can move, the two side clamping plates 22 can be fixed through tightening the fixing bolts 23, and rubber pads 24 are arranged at the end parts of the inner walls of the two side clamping plates 22.
The ecological prefabricated assembly type reinforced concrete rapid trough drainage system mainly comprises the following construction processes:
step one, prefabricating a rapid trough: according to the special structure of the rapid trough prefabricating section, designing and manufacturing a mold of the rapid trough standard prefabricating section 1 and a mold of the rapid trough non-standard prefabricating section 17 respectively, wherein the molds are divided into an inner side template and an outer side template which are assembled together by bolts, the molds are made of steel plates and provided with pouring openings, and back ridges are uniformly arranged on the inner side and the outer side of the molds so as to ensure the integral stability of the molds; brushing a release agent in the moulds of the standard prefabricated section 1 of the rapid trough and the non-standard prefabricated section 17 of the rapid trough, configuring reinforcing steel bars according to the design, and arranging a concrete protective layer cushion block when the moulds are put into the moulds; after the reinforcement is arranged in the mold, fixing the inner side template and the outer side template of the mold together through bolts, pouring concrete into the pouring port and performing vibration molding;
step two, prefabricating a grass planting mold box: the mould of the grass planting mould box 10 is manufactured according to the design size, the mould is divided into an inner side mould plate and an outer side mould plate, the inner side mould plate and the outer side mould plate are assembled together by bolts, the mould is manufactured by steel plates and is provided with a pouring opening, and back ridges are uniformly arranged on the inner side and the outer side of the mould so as to ensure the integral stability of the mould; brushing a release agent in the mould of the grass planting mould box 10, fixing the inner side template and the outer side template of the mould together through bolts, pouring concrete into the pouring opening and performing vibration molding;
step three, groove construction: before installation, measuring and paying off the position of the rapid trough, carrying out layered excavation and compacting of the groove in place according to paying off results, and ensuring that the bottom of the groove is flat and solid; the waterproof geotextile 15 is laid in the groove, so that the waterproof geotextile 15 is laid smoothly, and the seam is welded compactly; paving broken stone cushion layers 14 on the paved waterproof geotextile 15 uniformly in layers and compacting the layers in place until the designed elevation is reached;
step four, force eliminating step installation: firstly, constructing a concrete foundation of a stilling step 12 at the water outlet of the rapid trough, and installing and fixing the stilling step 12 at the designed water outlet;
fifthly, installing a standard prefabricated section of the rapid trough: installing rapid flow groove prefabricated sections section by section from bottom to top, firstly inserting a steel cable 8 from a steel cable hole 16 on one side of a sliding stopping tooth 2 at the bottom of the first rapid flow groove standard prefabricated section 1 from top to bottom before installing the first rapid flow groove standard prefabricated section 1, then penetrating from the steel cable hole 16 on the other side of the sliding stopping tooth 2 at the bottom of the first rapid flow groove standard prefabricated section 1 from bottom to top, then positioning and fixing the first rapid flow groove standard prefabricated section 1, and then backfilling and compacting soil filling around in a layered manner; when the second section rapid trough standard prefabricated section 1 is installed, firstly, the second section rapid trough standard prefabricated section 1 and the first section rapid trough standard prefabricated section 1 are buckled together in a 'shingled' concave-convex mode and fixed, then, two ends of a steel cable 8 penetrate through steel cable holes 16 of the sliding-stopping teeth 2 at the bottom of the second section rapid trough standard prefabricated section 1 from bottom to top, and earth is filled around the second section rapid trough standard prefabricated section 1 in a backfilling and compacting mode in a layered mode; and analogizing in turn until all the torrent chute standard prefabricated sections 1 are installed;
step six, mounting a prefabricated sump: after the rapid trough standard prefabricated section 1 is installed, the prefabricated water collecting pit 11 is installed at the designed water inlet position, and the periphery is backfilled and compacted in a layered mode; after the prefabricated sump pit 11 is installed, the hook 4 of the rapid trough non-standard prefabricated section 17 is fixed on the side wall of the prefabricated sump pit 11 and is buckled with the last rapid trough standard prefabricated section 1 in a 'shingled' concave-convex mode, then two ends of the steel cable 8 penetrate through a steel cable hole 16 of the sliding stopping tooth 2 at the bottom of the rapid trough non-standard prefabricated section 17 from bottom to top, then two ends of the steel cable 8 are tied on two embedded pull rings 9 of the side wall of the prefabricated sump pit 11, and finally soil is filled around the prefabricated sump pit 11 in a layered backfilling and compacting mode;
seventhly, installing a grass planting mold box: the grass planting mould boxes 10 are embedded in the grooves and tongues 5 of the torrent groove standard prefabricated section 1 and the torrent groove non-standard prefabricated section 17 one by one from bottom to top, and after the grass planting mould boxes 10 are installed, planting soil is filled in the grass planting mould boxes 10 for greening;
step eight, installing a spherical detachable filter screen: the spherical detachable filter screen 13 is connected with the two side clamping plates 22 of the fixing clamp 19 through steel wires, the two side clamping plates 22 are further fixed through fixing bolts 23, and the two side clamping plates 22 are fixed on the side wall of the grass planting mold box 10 and the side wall of the rapid trough non-standard prefabricated section 17.
The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (1)
1. The construction method of the ecological prefabricated assembly type reinforced concrete rapid trough drainage system is characterized by comprising the following steps of:
step one, prefabricating a rapid trough: according to the special structure of the rapid trough prefabricating section, a mold for manufacturing the rapid trough standard prefabricating section (1) and a mold for manufacturing the rapid trough non-standard prefabricating section (17) are respectively designed, the molds are divided into an inner side mold plate and an outer side mold plate and are assembled together by bolts, the molds are made of steel plates and are provided with pouring openings, and back ridges are uniformly arranged on the inner side and the outer side of the molds so as to ensure the integral stability of the molds; brushing a release agent in the moulds of the standard prefabricated section (1) of the rapid trough and the non-standard prefabricated section (17) of the rapid trough, configuring reinforcing steel bars according to the design, and arranging a concrete protective layer cushion block when the moulds are put into the moulds; after the reinforcement is arranged in the mold, fixing the inner side template and the outer side template of the mold together through bolts, pouring concrete into the pouring port and performing vibration molding;
step two, prefabricating a grass planting mold box: the mould for manufacturing the grass planting mould box (10) according to the design size is divided into an inner side mould plate and an outer side mould plate which are assembled together by bolts, the mould is made of a steel plate and is provided with a pouring opening, and back ridges are uniformly arranged on the inner side and the outer side of the mould so as to ensure the integral stability of the mould; brushing a release agent in a mould of the grass planting mould box (10), fixing an inner side template and an outer side template of the mould together through bolts, pouring concrete into a pouring opening and performing vibration molding;
step three, groove construction: before installation, measuring and paying off the position of the rapid trough, carrying out layered excavation and compacting of the groove in place according to paying off results, and ensuring that the bottom of the groove is flat and solid; laying waterproof geotextile (15) in the groove to ensure that the waterproof geotextile (15) is laid smoothly and the seam is welded compactly; paving broken stone cushion layers (14) on the paved waterproof geotextile (15) uniformly in layers and compacting the layers in place until the designed elevation is reached;
step four, force eliminating step installation: firstly, constructing a concrete foundation of a stilling step (12) at the water outlet of the rapid trough, and installing and fixing the stilling step (12) at the designed water outlet;
fifthly, installing a standard prefabricated section of the rapid trough: installing rapid flow groove prefabricated sections section by section from bottom to top, firstly inserting a steel cable (8) from a steel cable hole (16) on one side of a sliding stopping tooth (2) at the bottom of the first rapid flow groove standard prefabricated section (1) from top to bottom before installing the first rapid flow groove standard prefabricated section (1), then penetrating the steel cable from the steel cable hole (16) on the other side of the sliding stopping tooth (2) at the bottom of the first rapid flow groove standard prefabricated section (1) from bottom to top, then after positioning and fixing the first rapid flow groove standard prefabricated section (1), backfilling and compacting soil around in a layered manner; when the second section rapid trough standard prefabricated section (1) is installed, firstly, the second section rapid trough standard prefabricated section and the first section rapid trough standard prefabricated section (1) are buckled together in a 'shingled' concave-convex mode and are fixed, then, two ends of a steel cable (8) penetrate through steel cable holes (16) of the sliding-stopping teeth (2) at the bottom of the second section rapid trough standard prefabricated section (1) from bottom to top, and soil filling around the second section rapid trough standard prefabricated section is compacted through layered backfilling; the steps are analogized in sequence until all the standard prefabricated sections (1) of the rapid trough are installed;
step six, mounting a prefabricated sump: after the rapid trough standard prefabricated section (1) is installed, a prefabricated water collecting pit (11) is installed at the designed water inlet position, and the surrounding filling soil is backfilled and compacted in a layered mode; after the prefabricated water collecting pit (11) is installed, a hook (4) of the rapid trough non-standard prefabricated section (17) is fixed on the side wall of the prefabricated water collecting pit (11) and is buckled with the last rapid trough standard prefabricated section (1) in a 'shingled' concave-convex mode, then two ends of a steel cable (8) penetrate through a steel cable hole (16) of a sliding stopping tooth (2) at the bottom of the rapid trough non-standard prefabricated section (17) from bottom to top, then two ends of the steel cable (8) are tied on two embedded pull rings (9) of the side wall of the prefabricated water collecting pit (11), and finally soil is filled around the prefabricated water collecting pit (11) in a compacted mode through layered backfilling;
seventhly, installing a grass planting mold box: the grass planting mould boxes (10) are embedded in the tongue-and-groove (5) of the torrent groove standard prefabricated section (1) and the torrent groove non-standard prefabricated section (17) one by one from bottom to top, and after the grass planting mould boxes (10) are installed, planting soil is filled in the grass planting mould boxes (10) for greening;
step eight, installing a spherical detachable filter screen: the spherical detachable filter screen (13) is connected with the two side clamping plates (22) of the fixing clamp (19) through steel wires, the two side clamping plates (22) are further fixed through fixing bolts (23), and the two side clamping plates (22) are fixed on the side wall of the grass planting mold box (10) and the side wall of the rapid trough non-standard prefabricated section (17).
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