CN113250050B - Airport pavement assembled plate replacement updating technical method - Google Patents
Airport pavement assembled plate replacement updating technical method Download PDFInfo
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- CN113250050B CN113250050B CN202110557344.2A CN202110557344A CN113250050B CN 113250050 B CN113250050 B CN 113250050B CN 202110557344 A CN202110557344 A CN 202110557344A CN 113250050 B CN113250050 B CN 113250050B
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- E—FIXED CONSTRUCTIONS
- 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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
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- E—FIXED CONSTRUCTIONS
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/52—Apparatus for laying individual preformed surfacing elements, e.g. kerbstones
- E01C19/522—Apparatus for laying the elements by rolling or unfolding, e.g. for temporary pavings
Abstract
The invention discloses an airport pavement assembled plate replacement updating technical method which comprises the steps of prefabricating a pavement plate, cutting and separating an old plate, removing the old plate, cleaning a base, installing a positioning support, paving a self-leveling quick-setting mortar binding layer, installing the plate and standing and maintaining. The pavement slab is prefabricated in advance, and the stress state of the slab bottom of the prefabricated pavement slab is improved through the groove design of the slab bottom, so that leveling and drainage are facilitated. The old plate is cut and separated, which is suitable for replacing large-area plates and quickly separating and replacing local plates, and ensures the fit between the reserved groove and the plate; the installation of the positioning support is convenient for quickly leveling the four corners of the plate, and the prerequisite support is improved for the installation of the plate; laying the self-leveling quick-setting mortar combined layer, not only improving the higher flatness of the top surface of the base layer locally and integrally, but also shortening the processing time of the base surface by adopting a quick-setting material. The technical method of the invention ensures that the old plate surface of the airport pavement is straightly separated, the plate block is quickly leveled, and is mechanically and quickly placed, thereby achieving the purpose of quickly replacing and repairing the plate.
Description
Technical Field
The invention relates to the technical field of airport pavement construction, in particular to an airport pavement assembly type plate replacement updating technical method.
Background
With the rapid development of economy, airports are increasingly constructed. Although the structural strength of the pavement is good in the use process of the airport pavement, the airport concrete pavement can be peeled off or cracked along with the daily use of the airport pavement, and the airport concrete pavement needs to be maintained or repaired. In the repair of the concrete pavement of the airport, if a local plate is damaged, a new plate is cast in situ by removing an old plate, if the old plate is repaired in a large area, the construction of covering a quilt is generally carried out; before the requirement of non-navigation construction, the operation time is limited, the cast-in-place new slab needs hardening and condensing time, and simultaneously, the mixing and transportation of a concrete mixing station and the field wet operation are involved regardless of the operation amount, and the pollution is easily caused. The airport concrete pavement is repaired, and measures for hoisting prefabricated plates are adopted in China, but the airport concrete pavement is limited to individual plates, the hoisting process equipment is not high in precision, the time for entering the grooves is too long, and the plate replacement efficiency is influenced.
Disclosure of Invention
The invention aims to provide an airport pavement assembly type plate replacement and repair technical method, which is used for replacing and repairing local and large-area old plates of an airport to ensure that the old plates are separated straightly, the plates are quickly leveled and are mechanically and quickly placed, thereby achieving the purpose of quickly replacing and repairing the plates.
In order to achieve the purpose, the invention adopts the technical scheme that:
an airport pavement assembled plate-changing updating technical method is characterized in that pavement slab prefabrication is carried out in the early stage, old plate cutting separation, old plate cleaning and substrate cleaning are carried out on a concrete pavement to be changed, and the old pavement is quickly and accurately removed; and installing a pavement slab positioning support and paving a self-leveling quick-setting mortar binding layer in the substrate, and realizing quick repair of an old pavement area through installation of the prefabricated pavement slab and standing maintenance after installation.
Preferably, the plate replacement and updating technical method is suitable for replacement type maintenance of the original old plate block in a local area or a large area of the airport pavement, and rapid, accurate, safe and efficient repair of the prefabricated pavement slab in the old pavement area is realized by straight separation of the old plate block, rapid leveling of the plate block and use of mechanical placement equipment.
Preferably, the content step of the pavement slab prefabrication comprises the following steps:
step A1, determining the matching number of pavement blocks to be prefabricated according to the damaged area of the airport pavement to be processed;
step A2, producing the prefabricated pavement slab by adopting a prefabrication factory, and determining that the machining precision of the prefabricated pavement slab is controlled to be less than or equal to 2mm/3m in surface flatness;
step A3, when the prefabricated pavement slab is processed, a water flowing groove is arranged at the bottom of the prefabricated pavement slab, so that interlayer drainage is facilitated; the bottom of the prefabricated pavement slab block is provided with a slurry storage groove, and redundant quick-setting mortar can be stored in the subsequent paving process; and in the process of prefabricating the top, surface roughening treatment is carried out, so that the friction coefficient of the plate is improved.
Preferably, the method for controlling the cutting and separating of the old plate comprises the following steps:
step B1, combining the size of the damaged plate and the modulus of the prefabricated plate, and accurately cutting and separating the old pavement slab needing to be replaced and the surrounding plates by using concrete pavement cutting equipment;
step B2, when the concrete pavement cutting equipment cuts, a cutting machine straightening and leveling device and a laser level meter are used in a matched mode, and the straightening degree and the size requirements of cutting separation are accurately controlled;
and step B3, if the plate is changed in a large area, dividing the total area into construction units, carrying out flow construction, and controlling the unit time of plate changing.
Preferably, the contents of the old plate clearing include the following:
step C1, cutting by adopting cutting equipment, and crushing and decomposing the cut panel needing to be replaced by the old road panel through crushing equipment;
step C2, protecting peripheral boards around the old pavement to be cut before cutting, wherein marking lines and protecting pads can be arranged on the peripheral boards during protection; when crushing is carried out by using crushing equipment, attention is paid to the positions of the marking line and the protection pad, and when the edge is crushed, attention is paid to the protection of peripheral plates by using small-sized fine crushing equipment;
step C3, when the plates are partially changed, the connecting pieces are pre-buried into the original road panels around in advance in consideration of the connection between the precast plates and the original cast-in-place plates;
when the slab is changed in a large area, the connecting piece is used for connecting prefabricated slabs, and when the pavement slab is prefabricated, the connecting piece is pre-buried in advance;
and step C4, replacing large-area road panels, matching the operation area of each flow unit, calculating the abandoned material to be removed in each circulation operation surface, and ensuring the timely outward transportation of the abandoned material.
Preferably, the control content of the substrate cleaning comprises the following steps:
d1, carrying out base cleaning by adopting modes of cleaning, cleaning and the like after the crushed residues of the old road surface are transported outside;
and D2, if the plate is changed in a large area, matching the working area of each line production unit, and calculating the cleaning of each cycle and the outward transportation of the waste materials.
Preferably, the mounting contents of the pavement slab positioning support comprise the following:
e1, the pavement slab positioning support is a special mushroom-shaped support, the mounting position of the positioning support is determined, and pre-supporting positioning is carried out;
and E2, implanting the support into the base layer below the airport pavement according to the four-point positioning of the plate and combining with the on-site precision measurement.
Preferably, the laying control method of the self-leveling quick-setting mortar bonding layer comprises the following steps:
step F1, adopting quick-setting mortar as a laying layer to shorten the construction period;
f2, laying self-leveling quick-setting mortar in the substrate to serve as a bonding layer of the base layer and the prefabricated plate;
step F3, the high-flatness installation requirement of the plate is met through double control of the self-leveling elevation of the bottom of the plate and the top elevation of the prefabricated plate;
and F4, accumulating the slurry of the redundant extruded quick-setting mortar in the plate leveling process in the groove at the bottom of the plate.
Preferably, the contents of the installation of the precast pavement slab include the following:
g1, adopting special road surface plate hoisting equipment, wherein the hoisting precision is controlled to be in millimeter level, and the hoisting equipment can adopt a tire type, rail type or combined type moving mode;
g2, extracting, moving, positioning and hoisting the pavement slab through hoisting equipment;
g3, sequentially installing the pavement slab on the area needing to be installed, and driving the hoisting equipment away from a hoisting site after the installation is finished;
and G4, after the pavement slab in the installation area is installed, standing and maintaining for 1.0 hour, and then recovering navigation.
Preferably, the straightening and leveling device of the cutting machine comprises a cutting positioning frame, the cutting positioning frame is in a square frame shape, the cutting positioning frame comprises four cutting positioning I-shaped steel beams, the upper end part of each cutting positioning I-shaped steel beam is provided with a connecting inclined rod, and every two adjacent cutting positioning I-shaped steel beams are fixedly connected through a positioning bolt in the connecting inclined rod;
an angle steel plate rail is arranged on each cutting positioning I-shaped steel beam, two laser levels are matched with the side end of each cutting positioning I-shaped steel beam, and the two laser levels are connected to the front side end and the rear side end of each cutting positioning I-shaped steel beam through sliding positioning supports respectively;
the cutting equipment comprises a cutting machine body, a counterweight guide support and a roller guide rod assembly, wherein the counterweight guide support is connected to the upper front end of the cutting body, the roller guide rod assembly is connected to the upper side end of the counterweight guide support, and a roller of the roller guide rod assembly is in adaptive connection with the angle steel plate rail.
The invention has the beneficial effects that:
according to the airport pavement assembly type plate replacement updating technical method, the pavement plate is prefabricated, so that the forming strength of concrete is improved, the stress state of the bottom of the prefabricated pavement plate is improved through the groove design of the bottom of the plate, and leveling and drainage are facilitated. The old plate is cut and separated, so that the device is not only suitable for replacing large-area plates, but also more beneficial to quickly separating and replacing local plates, and ensures the coincidence of the reserved grooves and the plates. The installation of location support is convenient for carry out the four corners leveling of plate rapidly, improves the prerequisite for the plate installation and supports. Laying a self-leveling quick-setting mortar combined layer, not only improving the higher flatness of the top surface of the base layer locally and integrally, but also shortening the processing time of the base surface by adopting a quick-setting material; the plate installation adopts professional hanger plate equipment, improves the board speed of trading by a wide margin, further promotes the quick restoration of airport under the construction condition of not navigating.
Drawings
In order to clearly illustrate the embodiments or technical solutions of the present invention in the prior art, the drawings used in the description of the embodiments or prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a block diagram of the overall flow of the airport pavement assembled plate-changing updating technique.
FIG. 2 is a schematic structural position diagram of a concrete pavement cutting device and a straightening and leveling device of a cutting machine.
Detailed Description
The invention provides an airport pavement assembled plate-changing updating technical method, which is further described in detail below in order to make the purpose, technical scheme and effect of the invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The invention is described in detail below with reference to the accompanying drawings:
example 1
With reference to fig. 1, an airport pavement assembled plate-changing updating technique is characterized in that pavement plates are prefabricated in the early stage, and old plate cutting separation, old plate cleaning and substrate cleaning are performed on a concrete pavement to be changed, so that the old pavement is quickly and accurately removed; and installing a pavement slab positioning support and paving a self-leveling quick-setting mortar combined layer in the substrate, and realizing quick repair of the old pavement slab area through installation of the prefabricated pavement slab and standing maintenance after installation.
The plate-changing and updating technical method is suitable for replacement maintenance of the original old plate block in a local area or a large-area of the airport pavement, and can realize quick, accurate, safe and efficient repair of the prefabricated pavement slab in the old pavement area through straight separation of the old plate block, quick leveling of the plate block and use of mechanical placement equipment.
Example 2
With reference to fig. 1, an airport pavement assembled plate-changing updating technique is characterized in that pavement plates are prefabricated in the early stage, and old plate cutting separation, old plate cleaning and substrate cleaning are performed on a concrete pavement to be changed, so that the old pavement is quickly and accurately removed; and installing a pavement slab positioning support and paving a self-leveling quick-setting mortar combined layer in the substrate, and realizing quick repair of the old pavement slab area through installation of the prefabricated pavement slab and standing maintenance after installation.
The method for prefabricating the road slab comprises the following steps: step A1, determining the matching number of pavement blocks to be prefabricated according to the damaged area of the airport pavement to be processed; step A2, producing the prefabricated pavement slab block by adopting a prefabrication factory, and determining that the machining precision of the prefabricated pavement slab block is controlled to be less than or equal to 2mm/3m in surface flatness; step A3, when the prefabricated pavement slab is processed, a water flowing groove is arranged at the bottom of the prefabricated pavement slab, so that interlayer drainage is facilitated; the bottom of the prefabricated pavement slab is provided with a slurry storage groove, and redundant quick-setting mortar can be stored in the subsequent paving process; and in the process of prefabricating the top, surface roughening treatment is carried out, so that the friction coefficient of the plate is improved.
The method for controlling the cutting and separating of the old plate comprises the following steps: step B1, combining the size of the damaged plate and the modulus of the prefabricated plate, and accurately cutting and separating the old pavement slab needing to be replaced and the surrounding plates by using concrete pavement cutting equipment; step B2, when the concrete pavement cutting equipment cuts, a cutting machine straightening and leveling device and a laser level meter are used in a matched mode, and the straightening degree and the size requirements of cutting separation are accurately controlled; and step B3, if large-area plate replacement is carried out, the total area needs to be divided into construction units, flow construction is carried out, and the unit time of plate replacement is controlled.
The contents of the old plate removal include the following: step C1, after cutting by adopting cutting equipment, crushing and decomposing the cut panel needing to be replaced by the crushing equipment; step C2, protecting peripheral plates around the old pavement to be cut before cutting, wherein marking lines and protecting pads can be arranged on the peripheral plates during protection; when crushing is carried out by using crushing equipment, attention is paid to the positions of the marking line and the protection pad, and when the edge is crushed, attention is paid to the protection of peripheral plates by using small-sized fine crushing equipment; step C3, when the plates are partially changed, the connecting pieces are pre-buried into the original road panels around in advance in consideration of the connection between the precast plates and the original cast-in-place plates; when the slab is changed in a large area, the connecting piece is used for connecting prefabricated slabs, and when the pavement slab is prefabricated, the connecting piece is pre-buried in advance; and step C4, replacing large-area road panels, matching the operation area of each flow unit, calculating the abandoned material to be removed in each circulation operation surface, and ensuring the timely outward transportation of the abandoned material.
The control content of the substrate cleaning comprises the following steps: d1, carrying out base cleaning by adopting modes of cleaning, cleaning and the like after the crushed residues of the old road surface are transported outside; and D2, if the plate is changed in a large area, matching the working area of each line production unit, and calculating the cleaning of each cycle and the outward transportation of the waste materials.
The mounting contents of the pavement slab positioning support comprise the following steps: e1, the pavement slab positioning support is a special mushroom-shaped support, the mounting position of the positioning support is determined, and pre-supporting positioning is carried out; and E2, implanting the support into the base layer below the airport pavement according to the four-point positioning of the plate and combining with on-site precision measurement.
The laying control method of the self-leveling quick-setting mortar bonding layer comprises the following steps: step F1, adopting quick-setting mortar as a laying layer to shorten the construction period; f2, laying self-leveling quick-setting mortar in the substrate to serve as a bonding layer of the base layer and the prefabricated plate; step F3, the high-flatness installation requirement of the plate is met through double control of the self-leveling elevation of the bottom of the plate and the top elevation of the prefabricated plate; and F4, collecting the slurry of the redundant extruded quick setting mortar in the plate leveling process in the groove at the bottom of the plate.
The contents of the installation of the prefabricated pavement slab include the following: g1, adopting special pavement slab hoisting equipment, wherein the hoisting precision is controlled in millimeter level, and the hoisting equipment can adopt a tire type, rail type or combined type moving mode; g2, extracting, moving, positioning and hoisting the pavement slab through hoisting equipment; g3, sequentially installing the pavement slab on the area needing to be installed, and driving the hoisting equipment away from a hoisting site after the installation is finished; and G4, after the pavement slab in the installation area is installed, standing and maintaining for 1.0 hour, and then recovering navigation.
Example 3
With reference to fig. 1 and 2, an airport pavement assembled plate-changing updating technique method performs pavement slab prefabrication in the early stage, performs old plate cutting separation, old plate cleaning and substrate cleaning on a concrete pavement to be changed, and realizes quick and accurate removal of the old pavement; and installing a pavement slab positioning support and paving a self-leveling quick-setting mortar combined layer in the substrate, and realizing quick repair of the old pavement slab area through installation of the prefabricated pavement slab and standing maintenance after installation.
The method for prefabricating the road slab comprises the following steps: step A1, determining the matching number of pavement plates to be prefabricated according to the damaged area of the airport pavement to be processed; step A2, producing the prefabricated pavement slab by adopting a prefabrication factory, and determining that the machining precision of the prefabricated pavement slab is controlled to be less than or equal to 2mm/3m in surface flatness; step A3, when the prefabricated pavement slab is processed, a water flowing groove is arranged at the bottom of the prefabricated pavement slab, so that interlayer drainage is facilitated; the bottom of the prefabricated pavement slab is provided with a slurry storage groove, and redundant quick-setting mortar can be stored in the subsequent paving process; and in the process of prefabricating the top, surface roughening treatment is carried out, so that the friction coefficient of the plate is improved.
The method for controlling the cutting and separating of the old plate comprises the following steps: step B1, combining the size of the damaged plate and the modulus of the prefabricated plate, and accurately cutting and separating the old pavement slab needing to be replaced and the surrounding plates by using concrete pavement cutting equipment; step B2, when the concrete pavement cutting equipment 1 cuts, a cutting machine straightening and leveling device 2 and a laser level meter 3 are used in a matched mode, and the straightening degree and the size requirements of cutting separation are accurately controlled; and step B3, if the plate is changed in a large area, dividing the total area into construction units, carrying out flow construction, and controlling the unit time of plate changing.
The straightening and leveling device 2 of the cutting machine comprises a cutting positioning frame 21, the cutting positioning frame 21 is in a square frame shape, the cutting positioning frame comprises four cutting positioning I-shaped steel beams 22, the upper end of each cutting positioning I-shaped steel beam 22 is provided with a connecting inclined rod 23, and every two adjacent cutting positioning I-shaped steel beams 22 are fixedly connected through a positioning bolt in the connecting inclined rod.
An angle steel plate rail 24 is arranged on each cutting positioning I-shaped steel beam 22, two laser levels 3 are matched with the side ends of each cutting positioning I-shaped steel beam 22, and the two laser levels 3 are connected to the front side end and the rear side end of each cutting positioning I-shaped steel beam respectively through sliding positioning supports 31.
The cutting equipment 1 comprises a cutting machine body 11, a counterweight guide bracket 12 connected to the upper front end of the cutting body 11 and a roller guide rod assembly 13 connected to the upper side end of the counterweight guide bracket 12, wherein a roller 14 of the roller guide rod assembly 13 is in adaptive connection with an angle steel plate rail 24.
According to the invention, the pavement slab is prefabricated, so that the concrete forming strength is improved, the slab bottom stress state of the prefabricated pavement slab is improved through the groove design of the slab bottom, and leveling and drainage are facilitated; the old plate is cut and separated, so that the method is suitable for replacing large-area plates, is more favorable for quickly separating and replacing local plates, and ensures the fit between the reserved groove and the plate; the installation of the positioning support is convenient for quickly leveling the four corners of the plate, and the prerequisite support is improved for the installation of the plate; laying a self-leveling quick-setting mortar combined layer, not only improving the higher flatness of the top surface of the base layer locally and integrally, but also shortening the processing time of the base surface by adopting a quick-setting material; the plate installation adopts professional hanger plate equipment, improves the board speed of trading by a wide margin, further promotes the quick restoration of airport under the construction condition of not navigating.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (5)
1. An airport pavement assembled plate-changing updating technical method is characterized in that pavement plates are prefabricated in the early stage, and concrete pavement needing to be replaced is subjected to old plate cutting separation, old plate cleaning and base cleaning, so that the old pavement is quickly and accurately removed; installing a pavement slab positioning support and laying a self-leveling quick-setting mortar binding layer in the substrate, and realizing quick repair of an old pavement slab area through installation of a prefabricated pavement slab and standing maintenance after installation;
the method for controlling the cutting and separating of the old plate comprises the following steps:
step B1, combining the size of the damaged plate and the modulus of the prefabricated plate, and accurately cutting and separating the old pavement slab needing to be replaced and the surrounding plates by using concrete pavement cutting equipment;
step B2, when the concrete pavement cutting equipment cuts, a cutting machine straightening and leveling device and a laser level meter are used in a matched mode, and the straightening degree and the size requirements of cutting separation are accurately controlled;
step B3, if the plate is changed in a large area, dividing the total area into construction units, carrying out flow construction, and controlling the unit time of plate changing;
the contents of the old plate removal include the following:
step C1, after cutting by adopting cutting equipment, crushing and decomposing the cut panel needing to be replaced by the crushing equipment;
step C2, protecting peripheral boards around the old pavement to be cut before cutting, wherein marking lines and protecting pads can be arranged on the peripheral boards during protection; when crushing is carried out by using crushing equipment, attention is paid to marking positions of lines and protection pads, and when edges are crushed, small-sized fine crushing equipment is used for protecting surrounding plates;
step C3, when the plates are partially changed, the connecting pieces are pre-buried into the original road panels around in advance in consideration of the connection between the precast plates and the original cast-in-place plates;
when large-area slab replacement is carried out, the connecting pieces are connected among prefabricated slabs, and when the pavement slabs are prefabricated, the connecting pieces are pre-buried in advance;
c4, for large-area pavement slab replacement, matching the operation area of each flow unit, calculating the abandoned material to be removed in each circulation operation surface, and ensuring timely outward transportation of the abandoned material;
the mounting contents of the pavement slab positioning support comprise the following steps:
e1, the pavement slab positioning support is a special mushroom-shaped support, the mounting position of the positioning support is determined, and pre-supporting positioning is carried out; e2, according to the four-point positioning of the plate, and combining with on-site precision measurement, implanting the support into a base layer below the airport pavement;
the laying control method of the self-leveling quick-setting mortar bonding layer comprises the following steps:
step F1, adopting quick-setting mortar as a laying layer to shorten the construction period; f2, laying self-leveling quick-setting mortar in the substrate to serve as a bonding layer of the base layer and the prefabricated plate; step F3, the high-flatness installation requirement of the plate is met through double control of the self-leveling elevation of the bottom of the plate and the top elevation of the prefabricated plate; f4, collecting slurry of redundant extruded quick-setting mortar in the plate leveling process in a groove at the bottom of the plate;
the straightening and leveling device of the cutting machine comprises a cutting positioning frame, the cutting positioning frame is in a square frame shape and comprises four cutting positioning I-shaped steel beams, the upper end part of each cutting positioning I-shaped steel beam is provided with a connecting inclined rod, and every two adjacent cutting positioning I-shaped steel beams are fixedly connected through a positioning bolt in the connecting inclined rod;
an angle steel plate rail is arranged on each cutting positioning I-shaped steel beam, two laser levels are matched with the side end of each cutting positioning I-shaped steel beam, and the two laser levels are connected to the front side end and the rear side end of each cutting positioning I-shaped steel beam through sliding positioning supports respectively;
the cutting equipment comprises a cutting machine body, a counterweight guide support and a roller guide rod assembly, wherein the counterweight guide support is connected to the upper front end of the cutting body, the roller guide rod assembly is connected to the upper side end of the counterweight guide support, and a roller of the roller guide rod assembly is in adaptive connection with the angle steel plate rail.
2. The assembled plate-changing and renewing technique for airport pavement according to claim 1 is suitable for the replacement and repair of old plate blocks in local or large area of airport pavement, and can realize the fast, accurate, safe and efficient repair of the prefabricated pavement slab in the area of the old pavement by the straight detachment of the old plate blocks and the use of the fast leveling and mechanical placing equipment of the plate blocks.
3. The method of claim 1, wherein the step of prefabricating the pavement slab comprises:
step A1, determining the matching number of pavement plates to be prefabricated according to the damaged area of the airport pavement to be processed;
step A2, producing the prefabricated pavement slab block by adopting a prefabrication factory, and determining that the machining precision of the prefabricated pavement slab block is controlled to be less than or equal to 2mm/3m in surface flatness;
step A3, when the prefabricated pavement slab is processed, a water flowing groove is arranged at the bottom of the prefabricated pavement slab, so that interlayer drainage is facilitated; the bottom of the prefabricated pavement slab is provided with a slurry storage groove, and redundant quick-setting mortar can be stored in the subsequent paving process; and in the process of prefabricating the top, surface roughening treatment is carried out, so that the friction coefficient of the plate is improved.
4. The airport pavement assembled change plate updating technology method of claim 1, wherein the control content of the substrate cleaning comprises the following:
d1, carrying out base cleaning by adopting modes of cleaning, cleaning and the like after the crushed residues of the old road surface are transported outside;
and D2, if the plate is changed in a large area, matching the working area of each line production unit, and calculating the cleaning of each cycle and the outward transportation of the waste materials.
5. The method of claim 1, wherein the contents of the installation of the prefabricated pavement slab comprises the following steps:
g1, adopting special road surface plate hoisting equipment, wherein the hoisting precision is controlled to be in millimeter level, and the hoisting equipment can adopt a tire type, rail type or combined type moving mode;
g2, extracting, moving, positioning and hoisting the pavement slab through hoisting equipment;
g3, sequentially installing the pavement slab on the area needing to be installed, and driving the hoisting equipment away from a hoisting site after the installation is finished;
and G4, after the pavement slab in the installation area is installed, standing and maintaining for 1.0 hour, and then recovering navigation.
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