CN114837038A

CN114837038A - Construction method of barrier pedestrian path permeable base layer by adopting paver

Info

Publication number: CN114837038A
Application number: CN202210470382.9A
Authority: CN
Inventors: 何利彬; 禹春艳; 刁彬彬
Original assignee: CCCC First Highway Engineering Co Ltd
Current assignee: CCCC First Highway Engineering Co Ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-08-02

Abstract

The invention discloses a construction method using a paver for a permeable base of a sidewalk with obstacles, and researches and transforms a sandless permeable concrete steel formwork. A set of 5cm fan-shaped plug-in fixing grooves is added at the interface of the formwork. Through the use of the fixing grooves, it is ensured that the central axis of each steel formwork is at the same level. The straightness of the mold ensures the linear shape of the water stable edge. Since the tree pond strips in this design are located on the sand-free permeable concrete, and the inner edge of the strips needs to reserve undisturbed soil to ensure the later greening construction, the project adopts the tree pond wood mold into the design, and reserves the wrong place by layering. The formwork is processed in the form of a table formwork, so that the size of the bottom of the formwork is exactly the same as that of the tree pond. At the same time, the internal diagonal brace of the tree pond adopts spiral adjustable support rods. Through the adjustment of the rods, the tree pond wood formwork can be easily installed and disassembled.

Description

Construction method of barrier pedestrian path permeable base layer by adopting paver

Technical Field

The invention relates to a construction method of a barrier pedestrian path permeable base layer by adopting a paver, in particular to a construction method of a barrier pedestrian path permeable base layer by adopting the paver, which is suitable for the construction of municipal sidewalk non-sand permeable and other permeable base layer engineering containing structural barriers such as tree pools, inspection well rooms and the like, and belongs to the technical field of building construction.

Background

With the development of social economy and the construction of various urban facilities, the surface of a modern city is gradually covered by hard materials such as reinforced concrete, the subsurface infiltration capacity of the surface is reduced, and the surface runoff speed is increased. Rainwater which can permeate into the ground in rainy season is obviously reduced, and the underground water level of a city is sharply reduced; meanwhile, phenomena such as water accumulation and light reflection are easily formed, heat and humidity exchange with air is difficult, a heat island effect is easily formed, and the environment is affected. To change this phenomenon, environmental-friendly permeable materials are widely used as the base layer and surface layer materials of urban road sidewalks.

Because the newly-built road covers more pipelines, there are many structures on the sidewalk, for example: electric power well, communication well, drainage feeder shaft etc. equidistant tree pool structure thing that sets up on the pavement simultaneously adopts the small-size machines of manual fit to pave usually, and its influence is more because of construction quality factor, and the roughness hardly obtains guaranteeing, and the small-size machines of manual fit efficiency of construction is lower in addition, hardly satisfies the time limit for a project requirement, and based on this, this application provides one kind and has barrier people's pavement basic unit adoption paver construction method of permeating water.

Disclosure of Invention

The invention aims to solve the problems and provide a construction method of a water permeable base layer of a pedestrian path with an obstacle by adopting a paver.

According to the invention, the sand-free pervious concrete steel template is researched and improved, in order to facilitate the installation and the disassembly of the steel template and ensure the linear straightness and smoothness, a group of 5cm fan-shaped plug-in fixing grooves are added at the template interface, the central axis of each steel template can be ensured to be on the same horizontal plane through the use of the fixing grooves, and meanwhile, the fan-shaped plug-in fixing grooves can bear a certain load, so that the straightness and smoothness of the sand-free pervious concrete steel template are ensured, and the linear water stability is ensured.

Because this design tree pool barred rock is located on no sand concrete that permeates water, and the inboard edge position of barred rock need reserve the afforestation construction that the later stage is ensured to the original state soil, through advancing the design with tree pool wood former, reserve the mode of wrong platform template through the layering and process, make the bottom size of template coincide completely with the tree pool, the inside bracing in tree pool adopts the adjustable support member of spiral simultaneously, through the adjustment of member, can easily realize the installation and dismantle with tree pool wood former.

The invention realizes the purpose through the following technical scheme: a construction method of a permeable base layer of a pedestrian path with obstacles by adopting a paver is characterized in that:

the method comprises the following steps:

the method comprises the following steps that firstly, a paving working face is processed, before the construction of a sidewalk, the paving working face needs to be checked, and whether the height of a constructed structural object influences the normal construction of a paving machine or not is mainly checked, so that before the paving, the height of the structural object in the working face is measured and calculated, the influenced structural object needs to be dismantled by a small machine, and the top elevation of the structural object in the working face range and the bottom layer of the paving working face are ensured to be on the same horizontal plane.

Step two, template construction, wherein the templates are divided into two types according to functions, one type of template is used for supporting a base layer side template, a sidewalk is positioned on the outer side of a non-motor vehicle lane, and both sides of the sidewalk are provided with kerbs, but the outside kerbs on the outermost side of the sidewalk need to be embedded into sand-free permeable concrete for a certain depth, so that a steel mold needs to be supported on the outer side in the permeable base layer construction process, and the construction of the concrete is ensured; one type of formwork is used to cover obstacles because of the presence of a portion of the well in the sidewalk, and to prevent material from falling into the well during paving, the formwork is pre-covered with steel forms for support. The template for supporting the basic side die is connected with the template for covering the barrier through a fan-shaped plug-in type fixing groove, so that the straight smoothness and the line type of the water stable edge are guaranteed.

And thirdly, carrying out mechanical paving and rolling construction, namely paving by adopting a small-sized paver, calculating the virtual paving thickness according to the loose paving coefficient of the material, and carrying out rolling construction by adopting a small-sized machine, wherein the rolling speed and the rolling times are required to be controlled in the rolling process, so that the paved surface is ensured to be smooth.

Step four, construction of the tree pool position, after the step three is completed, the tree pool position of the sidewalk is released according to the requirements of a drawing, the outline of the tree pool is marked by lime points, the small excavator excavates sand-free concrete, and a wooden tree pool mold is adopted for performing 'shaping', namely: and (3) placing the wood pattern into the tree pool after the excavation is finished, backfilling surrounding burrs with permeable concrete materials, and tamping corners by using a small-sized tamping machine.

Constructing the well room position; and after the concrete is not constructed, excavating in time by using an excavator, taking out the steel template, building the well chamber to a proper elevation by using the same construction method, and backfilling and tamping by using the same material.

And step six, water spraying and maintenance, because the permeable base layer has a large number of pores, water is volatilized, and drying is quick, early maintenance is very important. And covering with geotextile after pouring, and timely watering and maintaining.

As a still further scheme of the invention: in the first step, ensuring that the top elevation of the structure in the working surface range and the bottom layer of the paving working surface are in the same horizontal plane is a precondition for ensuring the paving of the paver, and can realize important guarantee of mechanized construction.

As a still further scheme of the invention: and in the second step, a template is adopted for supporting, so that the appearance of the paved permeable base layer is ensured, the material is saved, and the phenomenon that the permeable material falls into the well chamber to cause pipeline blockage is avoided.

As a still further scheme of the invention: in the third step, a SUPER1300-3L small-sized paver is adopted for paving, a speed sensor is arranged on a walking hydraulic motor, a detected speed signal is compared with a set speed, and then a signal is output to control a walking variable pump; meanwhile, the installation of the constant power control system is also an effective means for ensuring that the engine does not drop speed when the load is suddenly increased, namely, each system automatically distributes power, and when the engine drops speed, the system with high power consumption of the screw and the vibration automatically adjusts the screw rotating speed and the vibration frequency, reduces the power of a hydraulic system, avoids dropping speed, realizes uniform-speed paving, and improves the paving flatness of the sand-free permeable concrete.

As a still further scheme of the invention: in the fourth step, the construction of the tree pool position comprises the following steps:

1) survey lofting

The center point of the tree pool is measured according to the design requirements of a drawing, the contour line of the tree pool is measured according to the size of the tree pool, spray paint is used for marking the contour line, a measurer should check the contour line in time, construction operation can be performed on the next step after the contour line is correct, and in order to guarantee the accuracy of paying off, the contour line should be arranged in the daytime as much as possible so as to avoid paying off errors at night and cause deviation of the tree pool to cause paving of pavement bricks, so that construction cannot be performed.

2) Tree pit excavation construction

The symmetrical excavation is carried out to the limit by the tree pool center to the excavation in-process, excavate and stop excavating to the profile line 10cm after, adopt the manual work to excavate and maintain, ensure that the profile of tree pool position is straight in the same direction as, at the excavation in-process, need run through whole structural layer, in time transport the material of excavating the tree pool position to working face reuse, avoided the waste of material.

3) Wood model support

After the tree pool is excavated, an internal mold model with the ratio of batten to tree pool being 1: 1 is adopted, the size of the reserved position of the basic layer is ensured to be consistent with the size of the tree pool after construction, when the wood mold is placed into an excavation groove, the position needs to be finely adjusted, the wood mold is ensured to be in a plane position with the central point of the tree pool, a steel nail is adopted for temporary fixation, after the horizontal position is adjusted, the vertical position of the wood mold is adjusted in time according to the top elevation of the paving operation surface, and the top surface of the wood mold and the top surface of the paving structure are fixed on the same horizontal plane.

4) Corner backfill

Because the gaps are formed between the wood pattern and the edges of the excavated grooves due to manual excavation after the materials are paved, the same materials are required to be backfilled in the gaps, and the backfilling thickness is calculated out according to the loose paving coefficient of the materials to be backfilled.

5) Tamping maintenance

The low-frequency vibrators are adopted for vibrating along four sides of the wood mold, and cement quantity in the sand-free concrete is limited, so that only aggregate particles can be wrapped, and therefore strong vibration or tamping cannot be adopted during pouring, otherwise cement paste can be deposited, uniformity of a concrete structure is damaged, a waterproof layer is formed at the bottom, and regular watering maintenance is carried out after tamping is finished.

6) Demolition work

After the concrete strength meets the requirements, the center support of the wood formwork is lightly knocked by a rubber hammer, after the wood formwork is disturbed all around, the wood beam is taken out, and a crowbar is strictly forbidden to be pried along the wood formwork and the concrete edge in the dismantling process, so that the edge angle of the tree pit is damaged.

As a still further scheme of the invention: in the fifth step, the well chamber position construction comprises the following steps:

1) excavating a well chamber;

according to the mark position, excavate the well room, adopt the vertical placement excavation as far as possible during the excavation, the excavation size is unanimous with the steel form size of cover, conveniently takes out the template, covers the template size and just unanimous with the well room outline size of building by laying bricks or stones, for guaranteeing that there is sufficient space in the later stage building process, the excavation needs expand 10cm outward on the basis of steel form size, the material that will excavate transports to working face reuse in time.

2) Building a well chamber;

(1) when a well chamber is built, after a foundation is flushed by water, a layer of mortar is paved, bricks are pressed for building, the mortar must be fully paved and squeezed, and mortar joints among the bricks are kept 1 cm.

(2) The launder in the drainage pipeline inspection well is built simultaneously with the well wall, when the stone building is adopted, mortar is applied to the surface for layered compaction and finishing, the launder is connected with the upstream and downstream pipelines, and the height of the inner bottom of the pipe meets the requirement of the process quality standard.

(3) When the round inspection well is bricked, the diameter size is detected at any time, and when the well needs to be closed, if the well is closed at four sides, the diameter size is not larger than 30mm every time the well is closed; if the three sides are retracted, the retraction at each time is not more than 50 mm; the inner wall of the masonry inspection well is subjected to primary pulp pointing, when the plastering requirement is met, the inner wall plastering is compacted in a layered mode, and the outer wall is subjected to mortar joint rubbing and compaction.

(4) The steps of the brick inspection well are arranged along with the brick, and before the positions, the steps are not required to be arranged before the masonry mortar or the concrete does not reach the specified compressive strength.

(5) The reserved pipe of the brick inspection well is built and installed at any time, the pipe diameter, the direction and the elevation of the reserved pipe meet the design requirements, the joint of the pipe and the well wall is tight and does not leak water, and the opening of the reserved branch pipe is constructed and sealed by low-strength mortar and is leveled.

(6) When the well body can not be built at one time, and is connected with the well body at the second time, the soil sundries on the original brick surface are cleaned, and then the brick surface is cleaned by water and soaked.

(7) Before filling the hole, the falling ash or impurities in the module hole should be checked and removed, and the bottom of the hole must be ensured to be clean and the pore passage must be smooth.

(8) The hole-pouring concrete is constructed according to the principle of continuous pouring and layered tamping, the layered height is controlled to be 300-500 mm, the pouring is completed in sequence, and construction joints are not suitable to be kept.

(9) The vibrating rod is inserted into the concrete to move up and down for vibrating until no rising air bubbles exist, and the best effect is achieved. During vibration, the hole is preferably isolated for vibration insertion, so that vibration leakage and over vibration are avoided, and the compactness of the concrete poured into the hole is ensured.

3) Backfilling with the same material;

and backfilling by using the same material, wherein the backfilling thickness is calculated according to the virtual paving coefficient of the material, and the positions around the groove and the well chamber need to be sprayed with water for wetting before backfilling.

4) Tamping and maintaining;

and in the same way, the low-frequency vibrator is adopted to vibrate along the periphery of the well chamber, and the cement amount in the sand-free concrete is limited, so that only aggregate particles can be wrapped, therefore, strong vibration or tamping cannot be adopted during pouring, otherwise, cement paste can be deposited to destroy the uniformity of the concrete structure, a waterproof layer is formed at the bottom, and water is regularly sprayed for maintenance after tamping is finished.

As a still further scheme of the invention: in the sixth step, after the sand-free permeable concrete is poured, as the interior of the sand-free permeable concrete is filled with the communicated macropores, free moisture is easy to be emitted along with free flowing air, so that further hydration of cement paste is influenced, and therefore, the surface of the sand-free permeable concrete needs to be continuously supplemented with moisture during maintenance. After construction, the concrete must be moisturized and maintained for a certain time, so that the strength of the concrete is gradually improved in a moist state. The initial setting time of the pervious cement concrete is short, the pervious cement concrete is initially set basically after construction, and in order to preserve moisture and prevent pollution, geotextile is covered on the surface of the pervious cement concrete after construction and water is uniformly sprayed, so that the wet state of the pervious cement concrete is maintained. The sprinkling can be only carried out in a sprinkling mode, and the sprinkling cannot be carried out by high-pressure water, the sprinkling is not less than 2 times every day (timely adjustment is carried out according to weather and temperature conditions), and the maintenance period is determined according to different environmental temperatures and is generally not less than 14 days.

As a still further scheme of the invention: in the third step, the permeable base layer is paved by the paver, so that the flatness is high, and the material is distributed uniformly. A certain construction method is adopted to avoid various structures, and the paving smoothness is controlled within 3mm (the specification value is less than or equal to 5 mm).

Drawings

FIG. 1 is a schematic view of the process of the present invention.

FIG. 2 is a schematic diagram of the construction sequence of the present invention.

FIG. 3 is a construction effect diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a method for constructing a water permeable base layer of a sidewalk with obstacles by using a paver comprises the following steps:

Step two, template construction, wherein the templates are divided into two types according to functions, one type of template is used for supporting a base layer side template, a sidewalk is positioned on the outer side of a non-motor vehicle lane, and both sides of the sidewalk are provided with kerbs, but the outside kerbs on the outermost side of the sidewalk need to be embedded into sand-free permeable concrete for a certain depth, so that a steel mold needs to be supported on the outer side in the permeable base layer construction process, and the construction of the concrete is ensured; one is used for covering obstacles, because partial well chambers exist in the sidewalk, in order to prevent materials from falling into the well in the paving process, a steel formwork is required to be used for covering and supporting in advance.

And fifthly, after the well chamber is constructed and the concrete is not constructed, excavating in time by using an excavator, taking out the steel template, building the well chamber to a proper elevation by using the same construction method, and backfilling and tamping by using the same material.

Further, in the embodiment of the invention, in the first step, ensuring that the top elevation of the structure in the working surface range and the bottom layer of the paving working surface are in the same horizontal plane is a precondition for ensuring the paving of the paver, and an important guarantee of mechanized construction can be realized.

Furthermore, in the second step of the invention, the template is adopted for supporting, so that the appearance of the paved permeable base layer is ensured, the material is saved, and the pipeline blockage caused by the permeable material falling into the well chamber is prevented.

Further, in the third step of the present invention, a SUPER1300-3L small-sized paver is used for paving, a speed sensor is installed on the traveling hydraulic motor, the detected speed signal is compared with the set speed, and then a signal is output to control the traveling variable pump; meanwhile, the installation of the constant power control system is also an effective means for ensuring that the engine does not drop speed when the load is suddenly increased, namely, each system automatically distributes power, and when the engine drops speed, the system with high power consumption of the screw and the vibration automatically adjusts the screw rotating speed and the vibration frequency, reduces the power of a hydraulic system, avoids dropping speed, realizes uniform-speed paving, and improves the paving flatness of the sand-free permeable concrete.

Further, in the fourth step of the present invention, the tree pool position construction includes the following steps:

1) survey lofting

The center point of the tree pool is measured according to the design requirements of a drawing, the contour line of the tree pool is measured according to the size of the tree pool, paint spraying is adopted for contour line marking, a measurer needs to check in time, next construction operation can be carried out after the tree pool is accurate, and in order to guarantee the accuracy of paying off, the tree pool is arranged as much as possible in the daytime so as to avoid paying off errors at night and the problem that pavement of pavement bricks cannot be constructed due to deviation of the tree pool.

7) Tree pit excavation construction

Carry out the symmetry excavation to the limit by the tree pool center among the excavation process, excavate and stop the excavation behind the outline line 10cm, adopt the manual work to excavate and maintain, ensure that the outline at tree pool position is straight in the same direction as, at the excavation in-process, need run through whole structural layer, in time transport the material that excavates tree pool position to working face reuse, avoided the waste of material.

8) Wood model support

After the tree pool is excavated, an inner mold model with the ratio of battens to the tree pool being 1: 1 is adopted, the size of the reserved position of the base layer is ensured to be consistent with the size of the construction completion of the tree pool, when the wood mold is placed into the excavation groove, the position needs to be finely adjusted, the wood mold and the center point of the tree pool are ensured to be in a plane position, steel nails are used for temporary fixation, after the horizontal position is adjusted, the vertical position of the wood mold is timely adjusted according to the top elevation of the paving operation surface, and the top surface of the wood mold and the top surface of the paving structure are fixed on the same horizontal plane.

9) Corner backfill

10) Tamping maintenance

11) Demolition work

Further, in the embodiment of the present invention, in the fifth step, the well location construction includes the following steps:

1) excavation of well room locations

4) Well chamber masonry

(2) When the stone masonry is adopted, mortar is applied to the surface for layered compaction and finishing, the launder is connected with an upstream pipeline and a downstream pipeline, and the height of the inner bottom of the pipe meets the requirement of the process quality standard.

(6) When the well body built by the bricks cannot be built at one time, and when the well body is raised at the second time, soil sundries on the surface of the original bricks are cleaned, and then the surface of the bricks is cleaned by water and soaked.

5) Backfilling with the same material

4) Tamping maintenance

Furthermore, in the sixth step of the present invention, after the sand-free permeable concrete is poured, since the interior of the sand-free permeable concrete is filled with the connected macropores, free moisture is easily emitted along with free flowing air, which affects further hydration of the cement paste, and therefore, the surface of the sand-free permeable concrete must be continuously supplemented with moisture during the curing period. After construction, the concrete must be moisturized and maintained for a certain time, so that the strength of the concrete is gradually improved in a moist state. The initial setting time of the pervious cement concrete is short, the pervious cement concrete is initially set basically after construction, and in order to preserve moisture and prevent pollution, geotextile is covered on the surface of the pervious cement concrete after construction and water is uniformly sprayed, so that the wet state of the pervious cement concrete is maintained. The sprinkling can be only carried out in a sprinkling mode, and the sprinkling cannot be carried out by high-pressure water, the sprinkling is not less than 2 times every day (timely adjustment is carried out according to weather and temperature conditions), and the maintenance period is determined according to different environmental temperatures and is generally not less than 14 days.

Furthermore, in the third step of the embodiment of the invention, the paving operation of the permeable base layer by using the paver has high flatness and uniform material distribution. A certain construction method is adopted to avoid various structures, and the paving smoothness is controlled within 3mm (the specification value is less than or equal to 5 mm).

Claims

1. A construction method of a permeable base layer of a pedestrian path with obstacles by adopting a paver is characterized in that: the method comprises the following steps:

step one, paving a working surface; before the construction of the sidewalk, the paving operation surface is checked, and whether the elevation of the constructed structure influences the normal construction of the paving machine or not is checked, so that before the paving, the height of the structure in the working surface is measured and calculated, and the influenced structure needs to be dismantled by adopting a small machine, and the top elevation of the structure in the working surface range and the bottom layer of the paving operation surface are ensured to be on the same horizontal plane;

step two, template construction, wherein the templates are divided into two types according to functions, one type is used for supporting a base layer side template, a sidewalk is positioned on the outer side of a non-motor vehicle lane, kerbs are designed on two sides of the sidewalk, and a steel mould is required to be supported on the outer side in the construction process of the permeable base layer to ensure the construction of concrete; one is used for covering barriers and preventing materials from falling into a well in the paving process, and a steel formwork is required to be adopted for covering and supporting in advance; the template for supporting the base layer side die is connected with the template for covering the barrier through a fan-shaped plug-in type fixing groove, so that the straightness and smoothness and the line type of a water stable edge are ensured;

step one, mechanical paving and rolling construction, wherein a small paver is adopted for paving, the virtual paving thickness is calculated according to the loose paving coefficient of the material, the small machinery is adopted for rolling construction, and the rolling speed and the rolling times are required to be controlled in the rolling process to ensure that the paved surface is smooth;

step, tree pool position construction, after step completion, the pavement tree pool position is released according to the drawing requirement to mark out the outline of tree pool with lime point, small-size excavator excavates no sand concrete, adopts wooden tree pool mould to carry out "moulding", promptly: placing a wood pattern into the tree pool after the excavation is finished, backfilling surrounding burrs with permeable concrete materials, and tamping corners by using a small-sized tamping machine;

fifthly, after the well chamber is constructed and the concrete is not constructed, excavating by using an excavator, taking out the steel formwork, building the well chamber to a proper elevation by using the same construction method, and backfilling and tamping by using the same material;

and step six, watering and maintaining, namely covering the foundation layer with geotextile after pouring due to the existence of pores in the permeable foundation layer, and watering and maintaining.

2. The method for constructing the water permeable base layer of the pedestrian way with the obstacle by using the paver according to the claim 1, is characterized in that: in the first step, the top elevation of the structure in the working surface range and the bottom layer of the paving working surface are ensured to be on the same horizontal plane.

3. The method for constructing the water permeable base layer of the pedestrian way with the obstacle by using the paver according to the claim 1, is characterized in that: and in the second step, a template is adopted for supporting.

4. The method for constructing the water-permeable base layer of the pedestrian way with the obstacle by using the paver according to claim 1, characterized by comprising the following steps of: in the step, a small paver is adopted for paving, a speed sensor is arranged on a walking hydraulic motor, a detected speed signal is compared with a set speed, and then a signal is output to control a walking variable pump; and meanwhile, installing a constant power control system.

5. The method for constructing the water permeable base layer of the pedestrian way with the obstacle by using the paver according to the claim 1, is characterized in that: in the step, the tree pool position construction comprises the following steps:

1) measuring and lofting;

measuring the central point of the tree pool according to the design requirements of a drawing, measuring the contour line of the tree pool according to the size of the tree pool, adopting spray paint to mark the contour line, checking by a measurer in time, performing the next construction operation after the accuracy is correct and error-free, and arranging the operation in the daytime to ensure the accuracy of paying off;

excavating and constructing a tree pool;

symmetrically excavating from the center of the tree pit to the sides in the excavating process, stopping excavating after excavating to the contour line of 10cm, and manually excavating and finishing to ensure that the contour of the tree pit is straight and smooth;

supporting a wood mold;

after the tree pool is excavated, adopting the method that the ratio of the wood beam manufacture to the tree pool is 1: the internal mold model 1 ensures that the size of the reserved position of the base layer is consistent with the size of the finished tree pit construction, when a wood mold is placed in an excavation groove, the wood mold is ensured to be in a plane position with the center point of the tree pit, the wood mold is temporarily fixed by steel nails, and after the horizontal position is adjusted, the vertical position of the wood mold is timely adjusted according to the top elevation of a paving operation surface, so that the top surface of the wood mold and the top surface of a paving structure are in the same horizontal plane and are fixed;

backfilling corners;

because the wood pattern and the edge of the excavation groove have a gap due to manual excavation after the material is paved, the part needs to be backfilled by adopting the same material, and the backfilling thickness calculates the virtual paving thickness according to the loose paving coefficient of the material for backfilling;

tamping and maintaining;

vibrating along the wood formwork step by using a low-frequency vibrator, wherein strong vibration or tamping is not required during pouring, otherwise, cement paste can be deposited to destroy the uniformity of a concrete structure, a waterproof layer is formed at the bottom, and water is regularly sprayed for maintenance after tamping is finished;

dismantling;

after the concrete strength meets the requirement, lightly knocking the center support of the wood model by using a rubber hammer, and taking out the wood beam after the step disturbance.

6. The method for constructing the water permeable base layer of the pedestrian way with the obstacle by using the paver according to the claim 1, is characterized in that: in the fifth step, the well chamber position construction comprises the following steps:

1) excavating a well chamber;

according to the marked position, the well chamber is excavated, the excavation size is consistent with the size of a covered steel template when the well chamber is excavated, the template is convenient to take out, the size of the covered template is consistent with the size of the outer contour of the built well chamber, in order to ensure that sufficient space exists in the later building process, the excavation needs to be expanded by 10cm on the basis of the size of the steel template, and the excavated material is timely conveyed to a working face for recycling;

building a well chamber;

(1) when a well chamber is built, after a foundation is flushed by water, a layer of mortar is laid, bricks are pressed for building, the full laying and squeezing are achieved, and mortar joints among the bricks are kept 1 cm;

(2) when the stone masonry is adopted, mortar is applied to the surface for layering, compaction and finishing, and the launder is connected with the upstream and downstream pipelines;

(3) when a round inspection well is bricked, the diameter size is detected at any time, and when the well needs to be closed, if the well is closed, the diameter size is not larger than 30mm each time; if the step is the step intake, the intake is not more than 50mm each time; the inner wall of the masonry inspection well is subjected to raw stock pointing, when the plastering requirement is met, the plastering of the inner wall is compacted in a layered mode, and the outer wall is subjected to seam rubbing and compacting by mortar;

(4) the steps of the brick inspection well are arranged along with the brick, and before the positions, the steps are not required to be arranged before the masonry mortar or concrete does not reach the specified compressive strength;

(5) the reserved pipe of the brick inspection well is built and installed at any time, the pipe diameter, the direction and the elevation of the reserved pipe meet the design requirements, the joint of the pipe and the well wall is tight and does not leak water, and the opening of the reserved branch pipe is constructed and sealed by low-strength-level mortar and is leveled;

(6) when the well body built by the bricks cannot be built at one time and is connected to the high well at the second time, cleaning soil sundries on the surface of the original bricks, and then cleaning and soaking the surface of the bricks by water;

(7) before filling the hole, the falling ash or impurities in the module hole are checked and removed to ensure that the hole bottom is clean and the pore channel is smooth;

(8) the pouring concrete is constructed according to the principles of continuous pouring and layered tamping, the layered height is controlled to be 300-500 mm, and pouring is completed in sequence without leaving construction joints;

(9) the vibrating rod is inserted into the concrete to move up and down and vibrate until no rising air bubbles exist; when in vibration, the vibration is inserted into the isolation hole, so that the leakage vibration and the over vibration are avoided, and the compactness of the concrete poured into the hole is ensured;

backfilling with the same material;

adopting the same material for backfilling, calculating the backfilling thickness according to the virtual paving coefficient of the material, and sprinkling water to the groove and the well chamber at the step periphery position for wetting before backfilling;

4) tamping and maintaining;

the method is characterized in that a low-frequency vibrator is adopted to vibrate along the periphery of a well chamber, and the cement quantity in the sand-free concrete is limited, so that only aggregate particles can be wrapped, therefore, strong vibration or tamping cannot be adopted during pouring, otherwise, cement paste can be deposited, the uniformity of a concrete structure is damaged, a watertight layer is formed at the bottom, and regular watering maintenance is carried out after tamping is finished.

7. The method for constructing the water permeable base layer of the pedestrian way with the obstacle by using the paver according to the claim 1, is characterized in that: in the sixth step, after the sand-free permeable concrete is poured, as the interior of the sand-free permeable concrete is filled with the communicated macropores, the surface of the sand-free permeable concrete is continuously supplemented with water during maintenance; after construction, moisturizing and maintaining for a certain time to gradually improve the strength of the concrete under a wet state; the initial setting time of the pervious cement concrete is short, the pervious cement concrete is basically initially set after construction, and in order to preserve moisture and prevent pollution, geotextile is covered on the surface of the pervious cement concrete after construction and water is uniformly sprayed, so that the wet state of the pervious cement concrete is kept; the sprinkling is performed in a sprinkling mode, the sprinkling is performed for not less than 2 times every day, and the maintenance period is determined according to different environmental temperatures and is not less than 14 days.

8. The method for constructing the water permeable base layer of the pedestrian way with the obstacle by using the paver according to the claim 1, is characterized in that: in the step, the permeable base layer is paved by a paver, the flatness is high, the material is distributed uniformly, various structures are avoided, and the paving flatness is controlled within 3 mm.