CN115822059A - Double integral type resin concrete ditch of heavy load-bearing road - Google Patents

Abstract

The invention discloses a double-row integrated resin concrete ditch for a heavy load road and a construction method, wherein the ditch comprises the ground, a filling mechanism, a reinforcing steel bar layer, a fixing mechanism and a launching mechanism, wherein the reinforcing steel bar layer is attached to the bottom of the ground, and the filling mechanism is arranged at the upper end of the reinforcing steel bar layer; one end of the fixing mechanism is fixedly installed on the inner wall of the ground, the other end of the fixing mechanism is connected with the launching mechanism, and the outer wall of the launching mechanism is movably attached and connected with a concrete layer. The invention can prevent the drainage ditch from sinking and prevent the pavement from cracking in the later period.

Description

Double integral type resin concrete ditch of heavy load-bearing road

Technical Field

The invention relates to the technical field of resin concrete ditches, in particular to a double-row integrated resin concrete ditch for a heavy load road.

Background

In recent years, due to the influence of global climate change, weather such as rainstorm has great influence on social handling, urban operation and people life, and in addition, the construction of part of urban drainage basic equipment is lagged, rain flood regulation and emergency handling can be insufficient, so that serious rainstorm internal swing disasters occur. In order to ensure that the equipment runs without defects, the cleaning and dredging of a drainage pipe network are enhanced, a street sound well and a sewer are arranged and communicated in time, particularly, pipe sections which are easy to silt up in construction sites, newly built buildings, around structures and in the whole year are opened, broken end pipelines are opened, and the drainage ditch secretion of products is improved. Under the background, the finished ditch of the resin concrete is produced.

In the Chinese invention patent: for example, CN217298784U, the present invention discloses a water system ditch dam system filled in a new hydraulic fill land area, which includes a water system ditch and multi-level dams filled at both sides of the water system ditch, and the multi-level dams are all filled above a supporting layer of the new hydraulic fill land area; the multistage dikes comprise a first-stage dike with an isosceles trapezoid cross section and a plurality of stages of dikes arranged on the outer side of the first-stage dike in sequence, wherein the dikes on the outer side of the multistage dikes cover part or all of the outer side surface of the dikes on the inner side, and the multistage dikes are gradually increased from inside to outside; a plurality of anti-slide piles are arranged in a dam crest platform of the multi-stage dam, the anti-slide piles are arranged in a double-row pile dislocation mode, and pile tips arranged at the lower ends of the anti-slide piles penetrate into a holding layer of a new hydraulic fill land area. The water system ditch dam system newly filled in the hydraulic filling land area has the advantages of simple structure, large dam bearing capacity, good stability and difficult collapse and overturn; and the ditch is difficult to back silting, and construction cost is low, and the efficiency of construction is high, safe and reliable.

The following problems exist in the prior art:

1. the water system ditch dam system filled in the new hydraulic filling land area is inconvenient to prevent settlement, and the phenomenon of uneven settlement easily occurs when vehicles roll back and forth in the ditch in use.

2. The water system ditch dam system newly filled in the hydraulic filling land area is inconvenient for later maintenance, the ditch is fixed in the ground in use, and the later maintenance requires a large amount of manpower and resources.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the double-row integrated resin concrete ditch for the heavy load road, which has the advantages of convenience in settlement prevention, later maintenance and the like, and solves the problems in the background art.

The technical scheme is as follows: in order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a double integral type resin concrete irrigation canals and ditches of heavy load-bearing road, includes ground, filling mechanism, reinforcing bar layer, fixed establishment, launching mechanism, wherein:

the reinforcing bar layer is attached to the bottom of the ground, and the filling mechanism is installed at the upper end of the reinforcing bar layer. Fixed establishment's one end fixed mounting is on the inner wall on ground, and fixed establishment's the other end and launching mechanism are connected, launching mechanism's outer wall activity laminating is connected with concrete layer, can prevent through the filling mechanism who sets up with fixed establishment that the later stage from subsiding, and the double integral type resin concrete finished product irrigation canals and ditches foundation of heavy load-bearing road is handled and is adopted cement layer, coarse stone layer and fine sand layer as the bed course, lays one deck reinforcing bar layer, adopts 1:2, leveling the dry-mixed cement mortar to prevent the drainage ditch from sinking; then backfilling a concrete layer, pouring twice, and paving a fixing mechanism below the pavement, so that common quality problems of cracks on the pavement in the later period can be prevented.

Preferably, the upper end activity laminating on reinforcing bar layer is connected with the cement layer, the upper end activity laminating on cement layer is connected with the rough stone layer, can prevent to subside.

Preferably, the upper end activity laminating of coarse stone layer is connected with fine sand layer, constitute between the upper end of fine sand layer and the bottom of fine sand layer and closely laminate, make level conveniently.

Preferably, the inner wall activity laminating on ground is connected with the horizontal bar, the outer activity laminating of horizontal bar is connected with the binding silk, and is convenient fixed.

Preferably, the outer wall of horizontal reinforcing bar is connected with perpendicular reinforcing bar in the activity laminating, constitute between the outer wall of horizontal reinforcing bar and the outer wall of perpendicular reinforcing bar and closely laminate, prevent the fracture.

Preferably, the drainage mechanism is including the finished product escape canal body, the water drainage tank has been seted up to the inner wall of finished product escape canal body, can the drainage.

Preferably, the upper end of the finished drainage ditch body is connected with an upper cover in an adhesive manner, a water leakage groove is formed in the upper surface of the upper cover, and rainwater can permeate down.

A construction method of a double-row integrated resin concrete ditch of a heavy load road comprises the following steps:

step 1, early preparation: and (5) placing a material plan according to the requirements of design drawings and technical checking orders.

Step 2, measurement and paying-off: and (3) adopting a GPS on site, confirming the position of the double-row integrated resin concrete ditch of the heavy load road according to a design drawing and actual conditions on site, determining an excavation sideline and an excavation depth, and manually scattering a dust line.

Step 3, excavating a foundation trench: according to the sideline that the surveyor emitted, the manual work cuts pitch, must guarantee that pitch cutting back is in the same direction as straight, demolish the flat stone and the curbstone that have installed simultaneously, cuts flat stone and curbstone according to on-the-spot needs, and the flat stone removes other all needs of escape canal positions and resumes, and the curbstone resumes after treating that the escape canal is installed.

Step 4, laying a steel bar mesh and pouring a concrete base layer: after the soil body at the bottom of the groove is dug to the height of the groove bottom, firstly tamping the soil body at the bottom of the groove by using a plate tamper, adopting commercial concrete as basic concrete, protecting asphalt on two sides by using adhesive tapes and geomembranes before pouring the concrete, laying a layer of reinforcing mesh at the bottom of the groove, controlling the height, arranging a concrete cushion layer slope to be the same as a cross slope of an asphalt pavement, pointing to a drainage outlet of a system from high to low, reserving a cement mortar leveling layer of 3-5cm at the same time, and then pouring by using C15 concrete.

Step 5, leveling mortar: and (3) fully paving a layer of dry-mixed cement mortar on the concrete foundation at the bottom of the groove, leveling with lines according to the elevation and the gradient, and adjusting the thickness according to the flatness of the concrete foundation.

Step 6, positioning and placing the drainage ditch: firstly, bracing wires are used for determining the height and the central line position of the drainage ditch, cement mortar is used for leveling, the drainage ditch is placed on the bracing wires, the height and the central line are adjusted to be consistent with the bracing wires, the drainage ditch is divided into three parts, and the two drainage ditches are installed into finished drainage ditches by the same method until the installation is finished.

Step 7, pointing the sealant: gaps at the juncture of the two rows of water ditches are uniformly coated at the joint seams of adjacent drainage ditches by using asphalt silica gel, and after the coating is finished, redundant sealant at the joint seams is cleaned up.

Step 8, backfilling steel fiber concrete for the first time: the concrete is backfilled by steel fiber concrete, and before the concrete is backfilled, the drainage ditch and the asphalt concrete on two sides are protected by the geomembrane and the wood board, so that the concrete is prevented from falling into the gap of the drainage ditch and polluting an asphalt concrete pavement. The first pouring is performed at a height slightly higher than the bottom support of the drainage ditch, and concrete can be poured on two sides after the bottom support is hardened.

Step 9, laying a steel bar mesh: and paving a layer of reinforcing mesh at a position 20cm below the road surface.

Step 10, backfilling steel fiber concrete for the second time: and (3) pouring concrete for the second time, wherein the height of the concrete for the second time is 20cm below the pavement, simultaneously placing a reinforcing mesh, and finally pouring the concrete to the paved asphalt pavement, wherein the two sides of the asphalt pavement are simultaneously and uniformly poured, the concrete is vibrated when being poured, the concrete is required to be vibrated until the concrete is dense, the dense mark is that the concrete stops sinking, bubbles do not emerge, the surface is flat and is muddy, and the trench is kept horizontal in the concrete pouring process and the corresponding installation height is ensured to be unchanged.

Step 11, concrete curing: after the concrete pouring is finished, the two sides of the drainage ditch are sealed, and the concrete is cured.

Compared with the prior art, the invention has the following beneficial effects:

1. the filling mechanism and the fixing mechanism can prevent later settlement, the double-row integrated resin concrete finished ditch foundation treatment of the heavy load road adopts a cement layer, a coarse stone layer and a fine sand layer as cushion layers, a reinforcing steel layer is laid, and the steps of 1:2, leveling the dry-mixed cement mortar to prevent the drainage ditch from sinking; then backfilling a concrete layer, pouring for two times, and paving a fixing mechanism below the pavement, so that the common quality problem of cracks on the pavement in the later period can be prevented.

2. The invention can facilitate later maintenance through the arranged launching mechanism, and the launching mechanism adopts the design and application technology of the end-closed and weighing type openable panel, thereby greatly reducing the cost of later maintenance management and also conforming to the concept of sponge city.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is a schematic view of the filling mechanism according to the present invention;

FIG. 3 is a schematic structural view of a fixing mechanism according to the present invention;

FIG. 4 is a schematic view of the launching mechanism of the present invention;

FIG. 5 is a flow chart of a construction method of the double-row integrated resin concrete ditch of the heavy load road.

In the figure: 1. a ground surface; 2. a filling mechanism; 3. a reinforcing steel bar layer; 4. a fixing mechanism; 5. a launching mechanism; 6. a concrete layer; 201. a fine sand layer; 202. a coarse stone layer; 203. a cement layer; 401. erecting steel bars; 402. transverse reinforcing steel bars; 403. binding wires; 501. a finished drainage ditch body; 502. a water discharge tank; 503. an upper cover; 504. a water leakage groove.

Detailed Description

The present invention is further illustrated by the following description in conjunction with the accompanying drawings and the specific embodiments, it is to be understood that these examples are given solely for the purpose of illustration and are not intended as a definition of the limits of the invention, since various equivalent modifications will occur to those skilled in the art upon reading the present invention and fall within the limits of the appended claims.

The utility model provides a double integral type resin concrete irrigation canals and ditches of heavy load-bearing road, includes ground 1, filling mechanism 2, reinforcing bar layer 3, fixed establishment 4, launching mechanism 5, wherein:

the reinforcing steel bar layer 3 is attached to the bottom of the ground 1, and the filling mechanism 2 is installed at the upper end of the reinforcing steel bar layer 3; one end of the fixing mechanism 4 is fixedly installed on the inner wall of the ground 1, the other end of the fixing mechanism 4 is connected with the launching mechanism 5, and the outer wall of the launching mechanism 5 is movably attached and connected with a concrete layer 6. In this embodiment, the bottom end of the ground 1 is movably jointed and connected with the reinforcing steel bar layer 3, and the upper end of the reinforcing steel bar layer 3 is movably jointed and connected with the filling mechanism 2. Ground 1's inner wall movable joint connects fixed establishment 4, the one end movable joint of fixed establishment 4 connects launching mechanism 5, the outer wall movable joint of launching mechanism 5 connects concrete layer 6, can prevent the later stage through the filling mechanism 2 that sets up and fixed establishment 4 and subside, heavily bear the weight of the double integral type resin concrete finished product irrigation canals and ditches foundation of road and handle and adopt cement layer 203, rubble layer 202 and fine sand layer 201 as the bed course, lay one deck reinforcing bar layer 3, adopt 1:2, leveling the dry-mixed cement mortar to prevent the drainage ditch from sinking; then backfilling a concrete layer 6, pouring for two times, and paving a fixing mechanism 4 below the pavement, so that the common quality problem of cracks on the pavement in the later period can be prevented.

The drainage mechanism 5 comprises a finished drainage ditch body 501, and a drainage groove 502 capable of draining water is formed in the inner wall of the finished drainage ditch body 501.

The upper end activity laminating of reinforcing bar layer 3 is connected with cement layer 203, and the upper end activity laminating of cement layer 203 is connected with rough stone layer 202, can prevent to subside.

The upper end activity laminating of coarse stone layer 202 is connected with fine sand layer 201, constitutes closely laminating between the upper end of fine sand layer 201 and the bottom of fine sand layer 201, makes things convenient for to make level.

The inner wall of the ground 1 is movably jointed with a transverse steel bar 402, and the outer wall of the transverse steel bar 402 is movably jointed with a binding wire 403, so that the fixing is convenient.

The outer wall activity laminating of horizontal reinforcing bar 402 is connected with vertical reinforcement bar 401, constitutes closely the laminating between the outer wall of horizontal reinforcing bar 402 and vertical reinforcement bar 401's the outer wall, prevents the fracture.

The upper end of the finished drainage ditch body 501 is connected with an upper cover 503 in an adhesive mode, a water leakage groove 504 is formed in the upper surface of the upper cover 503, and rainwater can penetrate downwards.

When the double-row resin concrete ditch is used, the digging sideline and the digging depth are determined through lofting and measurement of a measurer, an ash line is manually spread, the road surface is cut, then manual trimming is adopted when the ditch is dug to the range of 5-10cm from the base elevation, the digging depth of the ditch is measured along with the digging, then a reinforcing steel bar layer 3 is laid at the bottom of the ditch, then a cement layer 203, a coarse stone layer 202 and a fine sand layer 201 are sequentially poured into the ditch for leveling, then the height and the center line position of the ditch are determined by pulling wires, then a launching mechanism 5 is placed into the ditch, gaps at the junctions of two rows of ditches are uniformly coated with asphalt silica gel waterproof sealant at the joints of adjacent ditches, after the coating is finished, the redundant sealant at the joints must be cleaned, then a concrete layer 6 is backfilled, then the pouring is carried out twice, and a fixing mechanism 4 is laid below the road surface.

A construction method of a double-row integrated resin concrete ditch of a heavy load road is shown in figure 5 and comprises the following steps:

step 1, early preparation: the material plan is made according to the requirement of design drawing and technical checking order, the material is required to provide the manufacturer with the qualification, product qualification certificate and detection report, the material is submitted and managed, and the material can be used after the general monitoring engineering agrees. The construction technology and safety of field constructors are handed over, and the responsibility, construction procedure, process flow and control requirements of all posts and the items needing attention in construction are determined.

Step 2, measurement and paying-off: the GPS is adopted on the site, the measuring instrument is checked to meet the requirement of the instrument precision, and the position of the integrated drainage ditch is confirmed according to the design drawing and the actual situation on the site. And (4) determining the excavation side line and the excavation depth through lofting measurement of a measurer, and manually scattering a dust line.

Step 3, excavating a foundation trench: adopt mechanical excavation as main, artifical excavation as assisting, dig the ditch and need strict control to dig deeply and escape canal sideline, according to the sideline that the surveyor emitted, the manual work cuts pitch, must guarantee that pitch cutting back is straight, demolishs the flat stone and the curbstone that have installed simultaneously, cuts flat stone and curbstone according to on-the-spot needs, and the flat stone removes other all needs of escape canal position and resumes, and the curbstone waits to resume after the escape canal is installed. After manual cutting, a manual matching machine is adopted to dig the groove, firstly, an excavator is used for rough digging in the ash line, manual trimming is adopted when the groove is dug to a range of 5-10cm from the base elevation, the digging depth of the groove is measured along with digging, the over digging phenomenon is avoided, and the groove bottom elevation is ensured to meet the requirement.

Step 4, laying a steel bar mesh and pouring a concrete base layer: after the elevation of the bottom of the groove is dug, firstly, a plate compactor is used for compacting the soil body of the bottom of the groove, commercial concrete is used as basic concrete, asphalt on two sides is protected by using an adhesive tape and a geomembrane before concrete pouring, a layer of phi 12@150 reinforcing mesh is laid at the bottom of the groove, a measurer controls the elevation, a concrete cushion layer is put on a slope and is in a cross slope with an asphalt pavement, a diversion slope is from high to low and points to a drainage outlet of a system, meanwhile, an M10 cement mortar leveling layer for 3-5cm is reserved, and then C15 concrete is used for pouring.

And 5, leveling mortar: in order to ensure that the ditch and the substrate are highly bonded to form a whole, a layer of 1.

Step 6, positioning and placing the drainage ditch: firstly, bracing wires are used for determining the height and the center line position of the drainage ditch, cement mortar is used for leveling, the drainage ditch is placed on the bracing wires, the height and the center line are adjusted to be consistent with the bracing wires, the drainage ditch is guaranteed to be trisected, the distance between every two drainage ditches is 0.3m, and the two drainage ditches are installed into a finished drainage ditch by the same method until the installation is finished.

Step 7, pointing the sealant: gaps at the juncture of the two rows of water ditches are uniformly coated at the joint seams of adjacent water ditches by using asphalt silica gel (waterproof sealant), and after the coating is finished, redundant sealant at the joint seams must be cleaned up, otherwise, the drainage function is influenced.

Step 8, backfilling steel fiber concrete for the first time: the concrete backfill adopts C50 steel fiber concrete, and the doping amount of the steel fiber is 50kg/m ³ Before the concrete is backfilled, the drainage ditch and the asphalt concrete on two sides are protected by the geomembrane and the wood boards, so that the concrete is prevented from falling into the gap of the drainage ditch and polluting an asphalt concrete pavement. The first pouring is performed at a height slightly higher than the bottom support of the drainage ditch, and concrete can be poured on two sides after the bottom support is hardened.

Step 9, laying a steel bar mesh: and paving a layer of phi 12@100 steel mesh at a position 20cm below the road surface.

Step 10, backfilling steel fiber concrete for the second time: and (3) pouring concrete for the second time, wherein the height of the concrete is 20cm below the pavement, simultaneously putting a phi 12@100 reinforcing mesh, and finally pouring the concrete to the paved asphalt pavement, wherein the two sides of the asphalt pavement need to be uniformly poured simultaneously, the concrete needs to be vibrated during pouring, the concrete needs to be vibrated until the concrete is dense, the dense mark is that the concrete stops sinking, bubbles do not appear, the surface is flat and grouted, and the trench body is kept horizontal in the concrete pouring process and the corresponding installation height is ensured to be unchanged.

Step 11, concrete curing: after the concrete pouring is finished, the two sides of the drainage ditch are sealed, the concrete is cured, and the traffic is opened after the concrete strength reaches 100%.

To sum up, this heavily bear double integral type resin concrete irrigation canals and ditches of road can prevent that the later stage from subsiding, heavily bears double integral type resin concrete finished product irrigation canals and ditches foundation of road and handles and adopt cement layer 203, coarse stone layer 202 and fine sand layer 201 as the bed course, lays one deck reinforcing bar layer 3, adopts 1:2, leveling the dry-mixed cement mortar to prevent the drainage ditch from sinking; then backfilling a concrete layer 6, pouring for two times, and laying a fixing mechanism 4 below the pavement, so that common quality problems of cracks on the pavement in the later period can be prevented, later-period maintenance can be facilitated, the launching mechanism 5 adopts a design and application technology of an end-closed and weighing type openable panel, the cost for later-period maintenance and management is greatly reduced, and the concept of a sponge city is also met.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.

Claims (8)

1. The utility model provides a heavy double integral type resin concrete irrigation canals and ditches of bearing road which characterized in that: including ground (1), filling mechanism (2), reinforcing bar layer (3), fixed establishment (4), launching mechanism (5), wherein:

the reinforcing steel bar layer (3) is attached to the bottom of the ground (1), and the filling mechanism (2) is installed at the upper end of the reinforcing steel bar layer (3); one end fixed mounting of fixed establishment (4) is on the inner wall on ground (1), and the other end and the mechanism of launching (5) of fixed establishment (4) are connected, the outer wall activity laminating of launching mechanism (5) is connected with concrete layer (6).

2. The double-row integrated resin concrete ditch for the heavy load road according to claim 1, characterized in that: the drainage mechanism (5) comprises a finished drainage ditch body (501), and a drainage groove (502) is formed in the inner wall of the finished drainage ditch body (501).

3. The double-row integrated resin concrete ditch for the heavy load road according to claim 2, characterized in that: the upper end activity laminating of reinforcing bar layer (3) is connected with cement layer (203), the upper end activity laminating of cement layer (203) is connected with rough stone layer (202).

4. The double-row integrated resin concrete ditch for the heavy load road as claimed in claim 3, wherein: the upper end activity laminating of thick stone layer (202) is connected with fine sand layer (201), constitute between the upper end of fine sand layer (201) and the bottom of fine sand layer (201) and closely laminate.

5. The double-row integrated resin concrete ditch for the heavy load road as claimed in claim 4, wherein: the inner wall of the ground (1) is movably jointed with a transverse steel bar (402), and the outer wall of the transverse steel bar (402) is movably jointed with a binding wire (403).

6. The double-row integrated resin concrete ditch for the heavy load road according to claim 5, characterized in that: the outer wall activity laminating of horizontal reinforcing bar (402) is connected with vertical reinforcement (401), constitute between the outer wall of horizontal reinforcing bar (402) and the outer wall of vertical reinforcement (401) and closely laminate.

7. The double-row integrated resin concrete ditch for the heavy load road as claimed in claim 6, wherein: the finished drainage ditch is characterized in that the upper end of the finished drainage ditch body (501) is connected with an upper cover (503) in an adhesive mode, and a water leakage groove (504) is formed in the upper surface of the upper cover (503).

8. The construction method of the double-row integrated resin concrete ditch for the heavy load road based on the claim 1 is characterized by comprising the following steps:

step 1, early preparation: placing a material plan according to the requirements of a design drawing and a technical checking order;

step 2, measurement and paying-off: the method comprises the following steps of (1) confirming the position of a double-row integrated resin concrete ditch of a heavy load road by adopting a GPS on site according to a design drawing and actual conditions on site, determining an excavation sideline and an excavation depth, and manually scattering a dust line;

step 3, excavating a foundation trench: manually cutting asphalt according to a sideline discharged by a measurer, ensuring that the asphalt is straight after being cut, removing the installed flat stone and the installed curbstone, cutting the flat stone and the curbstone according to the on-site requirement, recovering the flat stone except the drainage ditch, and recovering the curbstone after the drainage ditch is installed;

step 4, laying a steel bar mesh and pouring a concrete base layer: after the soil body at the bottom of the groove is dug to the height of the bottom of the groove, firstly tamping the soil body at the bottom of the groove by using a plate compactor, wherein the foundation concrete is commercial concrete, asphalt at two sides is protected by using an adhesive tape and a geomembrane before pouring the concrete, a layer of reinforcing mesh is laid at the bottom of the groove, the height is controlled, a concrete cushion layer is arranged on the slope and is the same as the cross slope of an asphalt pavement, a diversion slope points to a drainage outlet of the system from high to low, a cement mortar leveling layer of 3-5cm is reserved at the same time, and then pouring is carried out by using C15 concrete;

step 5, leveling mortar: fully paving a layer of dry-mixed cement mortar on the concrete foundation at the bottom of the groove, leveling with a strip line according to the elevation and the gradient, and adjusting the thickness according to the flatness of the concrete foundation;

step 6, positioning and placing the drainage ditch: firstly, bracing wires are used for determining the height and the center line position of the drainage ditch, cement mortar is used for leveling, the drainage ditch is placed on the bracing wires, the height and the center line are adjusted to be consistent with the bracing wires, the drainage ditch is divided into three parts, and the two drainage ditches are installed into finished drainage ditches by the same method until the installation is finished;

step 7, pointing the sealant: uniformly coating gaps at the junctions of the two rows of water ditches at the joint seams of adjacent drainage ditches by using asphalt silica gel, and cleaning redundant sealant at the joint seams after the coating is finished;

step 8, backfilling steel fiber concrete for the first time: the concrete backfilling adopts steel fiber concrete, and before the concrete backfilling, the drainage ditch and the asphalt concrete at two sides are protected by using the geomembrane and the wood board, so that the concrete is prevented from falling into the gap of the drainage ditch and polluting an asphalt concrete pavement; the first pouring is performed at a height slightly higher than the bottom support of the drainage ditch, and concrete can be poured on two sides after the bottom support is hardened;

step 9, laying a steel bar mesh: laying a layer of reinforcing mesh at a position 20cm below the road surface;

step 10, backfilling steel fiber concrete for the second time: the height of the concrete poured for the second time is 20cm below the pavement, the reinforcing mesh is placed at the same time, the concrete is poured to the paved asphalt pavement, two sides of the asphalt pavement are uniformly poured at the same time, the concrete is vibrated when the concrete is poured, the concrete must be vibrated until the concrete is dense, the dense mark is that the concrete stops sinking, bubbles do not appear, the surface is flat and slurry, and a trench body is kept horizontal in the concrete pouring process and the corresponding installation height is ensured to be unchanged;

step 11, concrete curing: after the concrete pouring is finished, the two sides of the drainage ditch are sealed, and the concrete is cured.

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