CN112796346A - Anti-settling well lid construction method - Google Patents
Anti-settling well lid construction method Download PDFInfo
- Publication number
- CN112796346A CN112796346A CN202110137142.2A CN202110137142A CN112796346A CN 112796346 A CN112796346 A CN 112796346A CN 202110137142 A CN202110137142 A CN 202110137142A CN 112796346 A CN112796346 A CN 112796346A
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- Prior art keywords
- paving
- steel die
- steel
- asphalt
- well lid
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
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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
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/4806—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely rollers for consolidating or finishing
- E01C19/4826—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely rollers for consolidating or finishing the materials being aggregate mixed with binders
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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
- E01C19/50—Removable forms or shutterings for road-building purposes; Devices or arrangements for forming individual paving elements, e.g. kerbs, in situ
- E01C19/502—Removable forms or shutterings, e.g. side forms; Removable supporting or anchoring means therefor, e.g. stakes
Abstract
The invention discloses a construction method of a settlement-proof well lid, which mainly comprises the following steps: s4, installing a paving steel die and finely adjusting elevation; s5, paving asphalt and rolling by a road roller; s6, taking out the spreading steel die and installing a flange limiting steel die; s7, temporarily placing the well cover; s9, installing a paving steel die and finely adjusting elevation; s11, taking out the spreading steel die, distributing and rolling; s12, well lid placement, rolling and cloth rolling. The paving steel mould can effectively ensure that the lower area of the anti-settling well lid flange plate, the peripheral area of the well lid and the pavement area are compacted under the same condition synchronously, and solves the common quality problems of uneven settling and the like caused by poor compactness of three areas of the asphalt pavement; the pavement and the well cover are constructed synchronously, so that traffic can be opened synchronously, and the construction period is shortened; the road surface is smoothly connected with the well cover without color difference, so that the road surface is smooth and attractive and the driving comfort is ensured; the waste of a manpower machine caused by reverse excavation construction of a newly-built road is avoided, and the construction cost is saved; safety risks caused by reverse cavity excavation are avoided; the influence of construction asphalt waste on the surrounding environment is reduced.
Description
Technical Field
The invention relates to the technical field of municipal road construction, in particular to a construction method of an anti-settling well lid.
Background
Along with the development of cities, the traffic volume is increased, so that the diseases of urban roads are increased, wherein the diseases of uneven settlement of the manhole cover and the peripheral road surface are more prominent, and the attractiveness of the urban roads, the urban image and the driving safety are influenced. With the adoption of a large number of domestic anti-settlement well covers, the construction method of the anti-settlement well covers for the currently-built municipal road mainly comprises the steps of reverse excavation and pavement asphalt loose paving and synchronous installation of the anti-settlement well covers. The anti-excavation method of the anti-settlement well lid has the advantages that the procedures are complicated, the process is not economical, the formed pavement needs to be cut and broken, and the compactness of asphalt is difficult to ensure by tamping small equipment. The asphalt loose paving synchronous installation method for the anti-settling well lid pavement has the advantages that asphalt loose paving thickness under the anti-settling well lid flange plate and longitudinal and transverse slope adjusting time are long, and rolling completion and flatness can not be guaranteed within standard temperature and time; many people are required to feed materials for many times during the installation of the well cover, a large number of foot prints are left, and the appearance is poor.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide a construction method of a settlement-proof well lid.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a construction method of a settlement-proof well lid, which comprises the following steps:
s1, synchronously heightening a well chamber: gradually heightening and lifting the inspection well chamber layer by layer according to the construction thickness of the pavement structure layer;
s2, reinforcing, installing and caulking the well ring: after the construction of the upper base layer of the cement stabilized macadam is completed, digging out the position of the upper base layer according to the designed reinforcement size of the well base before final setting of the upper base layer; after the upper base layer of the cement stabilized macadam is maintained and reaches the design strength, installing a well base according to the design requirement for reinforcement, adopting M10 cement mortar to perform base grouting and finely adjusting elevation before installation, and maintaining after installation is completed; filling a construction joint between the well base and the cement stabilized macadam upper base layer with fine aggregate concrete, compacting by vibration, and watering for curing;
s3, construction of a permeable layer and a sealing layer: cleaning a base layer, and carrying out permeable layer and seal layer construction according to the technical specification of pavement construction;
s4, installing a paving steel die and finely adjusting elevation: measuring the elevation of a paving base line of a lower layer of asphalt, hanging a steel wire rope of a side pile before paving, loosening the paving base line, and installing a paving steel die; taking a steel wire rope of the middle side pile as a reference, transversely pulling a nylon wire, finely adjusting the elevation of the paving steel die, and slightly lowering the elevation of the top surface of the paving steel die by 1cm-3cm compared with the elevation of the loose base line; a small wood plate or a small bamboo rubber plate is arranged under a steel support lug of the paving steel mould, so that the brittle damage of the well base reinforcement and the limiting steel mould in the vibration process of the road roller is prevented; paving the top and the side of the steel die and brushing an anti-sticking agent;
s5, paving asphalt, and rolling by a road roller: the paver paves the whole width according to the loose base line, adopt 13t double steel wheel to carry on the bituminous pavement and press 1-2 times first, find out the spacing steel mould and shovel off its upper asphalt; carrying out repressing and final pressing on the asphalt pavement by adopting a 13t double-steel wheel and 30t rubber-wheel road roller;
s6, taking out the paving steel die and installing a flange limiting steel die from the following layers: after the final pressure of the asphalt pavement is finished, a wrench is adopted to adjust the front and back sub-screw rods, the diameter of the limiting steel die is reduced, and the well lid paving steel die is taken out after the paving steel die is separated from asphalt; taking out the fine adjustment batten; taking out the paving steel die, lifting the paving steel die to a next inspection well, and installing a limiting steel die; filling and paving the vacant positions of the steel mould supporting lugs with the heat-supplementing materials, wherein the height of the heat-supplementing materials is 2-3cm higher than that of the finished pavement under final pressure; after the material supplementing is finished, installing a flange limit steel die, and installing the flange limit steel die and the paving steel die taken out in the prior way in a staggered way at an angle of 45 degrees; rolling the asphalt pavement by a 13t double-steel-wheel and 30t rubber-wheel road roller to ensure that the filling materials at the gaps of the supporting lugs of the steel mould for asphalt paving of the lower layer are fully compacted to form a whole with the pavement; adjusting the positive and negative thread screws by using a spanner to ensure that the flange limiting steel die is separated from asphalt after the diameter of the flange limiting steel die is reduced, and taking out the flange limiting steel die;
s7, temporarily placing the well lid on the following layers: after the pavement on the lower layer is polished, workers lift the anti-settling well cover and temporarily place the anti-settling well cover on the inspection well, and pad the anti-settling well cover flange plate by using bricks or battens; and warning signs such as a reflective cone barrel and the like are prevented;
s8, construction of a sticky layer;
s9, installing a paving steel die on the upper layer and finely adjusting the elevation: the upper layer of the asphalt is modified asphalt, the asphalt is paved in a balance beam mode according to the designed loose paving thickness, a paving steel die is installed in advance, the elevation of the paving steel die is finely adjusted according to the designed loose paving thickness of the upper layer, the designed loose paving thickness is slightly lower than 1-2cm, and the top and the side surfaces of the paving steel die are required to be brushed with anti-sticking agents;
s10, paving asphalt on the upper layer, and rolling by a roller: the paver paves according to the designed loose paving thickness of the upper layer, the asphalt pavement of the upper layer adopts a 13t double-steel wheel to carry out primary pressing for 1-2 times, and after the primary pressing is finished, a limiting steel die is found out and the asphalt material at the upper part of the limiting steel die is removed; re-pressing and final pressing by adopting a 13t double-steel wheel and 30t rubber-tyred roller;
s11, taking out the spreading steel die, distributing and rolling: taking out the limiting steel die, manually shoveling hot materials to fill and fill the vacant positions of the steel supporting lugs of the upper-layer paving steel die, wherein the height of the fed materials is slightly higher than that of the pavement by 1-2cm, and compacting an asphalt material at the position of the fed materials of the inspection well mouth by adopting a 13t double-steel wheel; digging out asphalt at a hinge position of a reserved anti-settling well cover at an inspection well mouth by using an ocean pick;
s12, well lid placement, rolling and supplement rolling around the well lid: installing the anti-settling well lid on an inspection well mouth according to a preset hinge position of the anti-settling well lid, and manually filling the modified asphalt hot material below a flange plate of the anti-settling well lid and the inner wall of the well lid, wherein the thickness of the filler is about 1 cm; carrying out static pressure fixing on the anti-settling well lid by a special person commanding 13t double steel wheels, wherein the rolling speed is not higher than 2Km/h, vibrating and rolling the anti-settling well lid until the road surface is basically level, manually scattering fine materials to fill the rough surface around the flange plate, commanding 13t double steel wheels to carry out high-frequency low-amplitude vibration on the anti-settling well lid until the height difference between the well lid and the road surface is about 0-3mm, and then carrying out rolling forming by a 30t rubber wheel;
s13, opening traffic: the surface temperature of the pavement is lower than 50 ℃, and the traffic can be opened.
Preferably, in step S5, the paving temperature of the asphalt No. 70 is not lower than 135 ℃, the internal temperature of the mixture is not lower than 130 ℃ when rolling is started, and the surface temperature is not lower than 80 ℃ after rolling is finished.
Preferably, in step S9, the spreading steel mold supports the ear at a height of 2-3 cm.
Preferably, in step S10, the paving temperature is not lower than 160 ℃, the initial pressing start temperature is not lower than 150 ℃, and the surface temperature after rolling is not lower than 90 ℃.
Preferably, the paving steel die comprises four cylinder walls with the cross section of 1/4 circular arc shapes, a grating, a cover plate, a movable support lug and a positive and negative tooth adjusting screw and nut assembly; the four cylinder walls are detachably connected through a positive and negative tooth adjusting screw and nut assembly to form a cylinder with adjustable diameter;
the outer walls of the tops of two ends of each cylinder wall are respectively provided with one movable supporting lug, the inner walls of the tops of two ends are respectively provided with a first limiting bracket, the middle part of the inner wall of the top is respectively provided with a second limiting bracket, and the outer wall of the cylinder wall at the position of the second limiting bracket is respectively provided with a fixed supporting lug; the grid sliding frame is arranged on a first limit bracket and a second limit bracket, the cover plate is arranged on the grid in a bridging mode, and four cover holes are evenly distributed in the cover plate.
Preferably, the positive and negative tooth adjusting screw nut component comprises a positive and negative tooth adjusting screw and two adjusting nuts, a limiting plate is respectively arranged on the top inner wall and the bottom inner wall of each of the two ends of the cylinder wall, the two ends of the positive and negative tooth adjusting screw respectively penetrate through the limiting plates of the two adjacent cylinder walls, and the two adjusting nuts are arranged at the two ends of the positive and negative tooth adjusting screw.
Preferably, the movable supporting lug comprises a main rib steel plate and a secondary rib steel plate perpendicular to the main rib steel plate, and the secondary rib steel plates on two adjacent cylinder walls are distributed in a staggered mode.
Preferably, the diameter of the cover plate is 5mm smaller than the inner diameter of the cylinder, so that the cover plate can be freely taken down and cannot be taken out without slight deformation of the cylinder; the elevation of the top surface of the cylinder is the same as or slightly lower than the elevation of the top surface of the cover plate by 2-3mm, and the cylinder can limit the cover plate from being taken away by asphalt mixture when the paver passes through a steel die.
Preferably, the flange limiting steel die comprises four cylinder walls with the cross sections being 1/4 circular arc shapes and a positive and negative tooth adjusting screw nut component; the four cylinder walls are detachably connected through the positive and negative tooth adjusting screw and nut assemblies to form a cylinder with adjustable diameter, and the outer end of the top of each cylinder wall is provided with an arc-shaped flange piece respectively, so that asphalt near the supporting lugs can be compacted without falling, and the cylinder walls and the road surface form a whole.
The invention has the beneficial effects that:
1. the road anti-settling well cover asphalt pavement paving steel die is adopted in the synchronous forming process of the anti-settling well cover and the pavement paving, so that the synchronous compaction under the same condition of the lower region of the anti-settling well cover flange plate, the peripheral region of the well cover and the pavement region can be effectively ensured, and common quality problems of uneven settlement and the like caused by the poor compaction degree of three regions of the asphalt pavement are solved; and the maintenance rate of later operation is reduced.
2. The construction of the pavement and the well cover is completed synchronously, so that the traffic can be opened synchronously, the construction period is shortened, and better social benefits can be obtained.
3. The road surface is smoothly and smoothly connected with the well cover without color difference, and the smoothness, the attractiveness and the driving comfort of the road surface are ensured.
4. The waste of a man machine caused by reverse excavation construction of a newly-built road is avoided, and the construction cost is saved.
5. Safety risks caused by reverse cavity excavation are avoided; the influence of construction asphalt waste on the surrounding environment is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a process flow diagram of a construction method of a settlement-proof well lid provided by the invention;
fig. 2 is a schematic structural diagram of a road anti-settling well lid asphalt pavement paving steel mold provided in embodiment 1 of the present invention (a cover plate is not shown);
FIG. 3 is a schematic structural view of a cover plate in embodiment 1;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 6 is a cross-sectional view taken along line C-C of FIG. 2;
FIG. 7 is an enlarged view of FIG. 2 at D;
FIG. 8 is a schematic view showing the installation of the positive and negative pitch adjustment screw nut assembly of example 1;
fig. 9 is a schematic structural view of a flange-limiting steel die in embodiment 1.
Description of reference numerals: the support comprises, by weight, 1-a cylinder wall, 11-a limiting plate, 12-an arc flange sheet, 2-a grid, 3-a cover plate, 4-a movable support lug, 41-a main rib steel plate, 42-a secondary rib steel plate, 5-a positive and negative tooth adjusting screw and nut assembly, 6-a first limiting bracket, 7-a second limiting bracket and 8-a fixed support lug.
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.
the outer walls of the tops of two ends of each cylinder wall 1 are respectively provided with a movable supporting lug 4, the inner walls of the tops of two ends are respectively provided with a first limiting bracket 6, the middle part of the inner wall of the top is respectively provided with a second limiting bracket 7, and the outer wall of the cylinder wall at the position of the second limiting bracket is respectively provided with a fixed supporting lug 8; the grating 2 slides on a first limiting bracket 6 and a second limiting bracket 7 in a sliding way, and when the adjusting nut is screwed to change the diameter of the cylinder, the grating can slide on a plane formed by the first limiting bracket and the second limiting bracket but cannot be separated from the two limiting brackets; the cover plate 3 is erected on the grating 2, four cover opening holes 31 are uniformly distributed on the cover plate 3, and the diameter of the cover plate 3 is the same as that of the cylinder.
Positive and negative tooth adjusting screw nut subassembly 5 includes positive and negative tooth adjusting screw 51 and two adjusting nut 52, and a limiting plate 11 is respectively established to the both ends top inner wall of every section of thick bamboo wall 1, bottom inner wall, and positive and negative tooth adjusting screw 51's both ends run through the limiting plate 11 of two adjacent section of thick bamboos respectively, and two adjusting nut 52 are established at positive and negative tooth adjusting screw 51's both ends, through twisting adjusting nut soon, can change the diameter of barrel easily, easy to assemble and dismantle the steel mould.
The movable supporting lug 4 comprises a main rib steel plate 41 and a secondary rib steel plate 42 perpendicular to the main rib steel plate 41, the secondary rib steel plates 42 on two adjacent cylinder walls 1 are distributed in a staggered mode, and when the adjusting nut is screwed to change the diameter of the cylinder, due to the staggered distribution of the secondary rib steel plates 42, the supporting area is guaranteed, and meanwhile the mutual interference situation cannot exist.
As shown in fig. 9, the flange limiting steel die comprises four cylinder walls 1 with a cross section of 1/4 circular arc and a positive and negative thread adjusting screw nut component 5; four section of thick bamboo walls 1 can dismantle the connection through positive and negative tooth adjusting screw nut subassembly 5, form a diameter adjustable drum, and the top outer end of every section of thick bamboo wall respectively is equipped with an arc flange piece 12, like this at the bituminous paving in-process, can not fall the material to the near pitch compaction of support ear, forms wholly with the road surface.
During construction, firstly inserting the paving steel die into an inspection well, then sequentially installing the grating and the cover plate, paving asphalt, normally rolling by a road roller, hooking the cover hole by a hook and pulling up the cover plate, then taking out the grating, screwing an adjusting nut by a wrench, reducing the diameter of the paving steel die, separating from the asphalt and taking out the paving steel die, filling asphalt heat materials into the gap of the supporting lug of the paving steel die, installing the limiting steel die 12 by an installation flange, installing the limiting steel die 12 by staggering 45 degrees with the paving steel die which is just taken out, rolling the limiting steel die 12 by the road roller, compacting the paving steel die supporting lug and the auxiliary asphalt, and finally installing the existing anti-settling well cover.
Example 2
A construction method of a settlement-proof well lid is shown in figure 1, and comprises the following specific steps:
s1, synchronously heightening a well chamber: gradually heightening and lifting the inspection well chamber layer by layer according to the construction thickness of the pavement structure layer;
s2, reinforcing, installing and caulking the well ring: after the construction of the upper base layer of the cement stabilized macadam is completed, digging out the position of the upper base layer according to the designed reinforcement size of the well base before final setting of the upper base layer; after the upper base layer of the cement stabilized macadam is maintained and reaches the design strength, installing a well base according to the design requirement for reinforcement, adopting M10 cement mortar to perform base grouting and finely adjusting elevation before installation, and maintaining after installation is completed; filling a construction joint between the well base and the cement stabilized macadam upper base layer with fine aggregate concrete, compacting by vibration, and watering for curing;
s3, construction of a permeable layer and a sealing layer: cleaning a base layer, and carrying out permeable layer and seal layer construction according to the technical specification of pavement construction;
s4, installing a paving steel die and finely adjusting elevation: measuring the elevation of a paving base line of a lower layer of asphalt, hanging a steel wire rope of a side pile before paving, loosening the paving base line, and installing a paving steel die; taking a steel wire rope of the middle side pile as a reference, transversely pulling a nylon wire, finely adjusting the elevation of the paving steel die, and slightly lowering the elevation of the top surface of the paving steel die by 1cm-3cm compared with the elevation of the loose base line; a small wood plate or a small bamboo rubber plate is arranged under a steel support lug of the paving steel mould, so that the brittle damage of the well base reinforcement and the limiting steel mould in the vibration process of the road roller is prevented; paving the top and the side of the steel die and brushing an anti-sticking agent;
s5, paving asphalt, and rolling by a road roller: the paver paves the whole width according to the loose base line, adopt 13t double steel wheel to carry on the bituminous pavement and press 1-2 times first, find out the spacing steel mould and shovel off its upper asphalt; carrying out repressing and final pressing on the asphalt pavement by adopting a 13t double-steel wheel and 30t rubber-wheel road roller;
s6, taking out the paving steel die and installing a flange limiting steel die from the following layers: after the final pressure of the asphalt pavement is finished, adjusting a front screw and a back screw by using a wrench, reducing the diameter of a paving steel die, and taking out the paving steel die after the paving steel die is separated from asphalt; taking out the fine adjustment batten; taking out the paving steel die, lifting the paving steel die to the next inspection well, and installing the paving steel die; filling and paving the vacant positions of the steel mould supporting lugs with the heat-supplementing materials, wherein the height of the heat-supplementing materials is 2-3cm higher than that of the finished pavement under final pressure; after the material supplementing is finished, installing a flange limit steel die, and installing the flange limit steel die and the paving steel die taken out in the prior way in a staggered way at an angle of 45 degrees; rolling the asphalt pavement by a 13t double-steel-wheel and 30t rubber-wheel road roller to ensure that the filling materials at the gaps of the supporting lugs of the steel mould for asphalt paving of the lower layer are fully compacted to form a whole with the pavement; adjusting the positive and negative thread screws by using a spanner to ensure that the flange limiting steel die is separated from asphalt after the diameter of the flange limiting steel die is reduced, and taking out the flange limiting steel die;
s7, temporarily placing the well lid on the following layers: after the pavement on the lower layer is polished, workers lift the anti-settling well cover and temporarily place the anti-settling well cover on the inspection well, and pad the anti-settling well cover flange plate by using bricks or battens; and warning signs such as a reflective cone barrel and the like are prevented;
s8, construction of a sticky layer;
s9, installing a paving steel die on the upper layer and finely adjusting the elevation: the upper layer of the asphalt is modified asphalt, the asphalt is paved in a balance beam mode according to the designed loose paving thickness, a paving steel die is installed in advance, the elevation of the paving steel die is finely adjusted according to the designed loose paving thickness of the upper layer, the designed loose paving thickness is slightly lower than 1-2cm, and the top and the side surfaces of the paving steel die are required to be brushed with anti-sticking agents;
s10, paving asphalt on the upper layer, and rolling by a roller: the paver paves according to the designed loose paving thickness of the upper layer, the asphalt pavement of the upper layer adopts a 13t double-steel wheel to carry out primary pressing for 1-2 times, and after the primary pressing is finished, a limiting steel die is found out and the asphalt material at the upper part of the limiting steel die is removed; re-pressing and final pressing by adopting a 13t double-steel wheel and 30t rubber-tyred roller;
s11, taking out the spreading steel die, distributing and rolling: taking out the limiting steel die, manually shoveling hot materials to fill and fill the vacant positions of the steel supporting lugs of the upper-layer paving steel die, wherein the height of the fed materials is slightly higher than that of the pavement by 1-2cm, and compacting an asphalt material at the position of the fed materials of the inspection well mouth by adopting a 13t double-steel wheel; digging out asphalt at a hinge position of a reserved anti-settling well cover at an inspection well mouth by using an ocean pick;
s12, well lid placement, rolling and supplement rolling around the well lid: installing the anti-settling well lid on an inspection well mouth according to a preset hinge position of the anti-settling well lid, and manually filling the modified asphalt hot material below a flange plate of the anti-settling well lid and the inner wall of the well lid, wherein the thickness of the filler is about 1 cm; carrying out static pressure fixing on the anti-settling well lid by a special person commanding 13t double steel wheels, wherein the rolling speed is not higher than 2Km/h, vibrating and rolling the anti-settling well lid until the road surface is basically level, manually scattering fine materials to fill the rough surface around the flange plate, commanding 13t double steel wheels to carry out high-frequency low-amplitude vibration on the anti-settling well lid until the height difference between the well lid and the road surface is about 0-3mm, and then carrying out rolling forming by a 30t rubber wheel;
s13, opening traffic: the surface temperature of the pavement is lower than 50 ℃, and the traffic can be opened.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. The anti-settling well lid construction method is characterized by comprising the following steps:
s1, synchronously heightening a well chamber: gradually heightening and lifting the inspection well chamber layer by layer according to the construction thickness of the pavement structure layer;
s2, reinforcing, installing and caulking the well ring: after the construction of the upper base layer of the cement stabilized macadam is completed, digging out the position of the upper base layer according to the designed reinforcement size of the well base before final setting of the upper base layer; after the upper base layer of the cement stabilized macadam is maintained and reaches the design strength, installing a well base according to the design requirement for reinforcement, adopting M10 cement mortar to perform base grouting and finely adjusting elevation before installation, and maintaining after installation is completed; filling a construction joint between the well base and the cement stabilized macadam upper base layer with fine aggregate concrete, compacting by vibration, and watering for curing;
s3, construction of a permeable layer and a sealing layer: cleaning a base layer, and carrying out permeable layer and seal layer construction according to the technical specification of pavement construction;
s4, installing a paving steel die and finely adjusting elevation: measuring the elevation of a paving base line of a lower layer of asphalt, hanging a steel wire rope of a side pile before paving, loosely paving the base line, and installing a limiting steel die; taking a steel wire rope of the middle side pile as a reference, transversely pulling a nylon wire, finely adjusting the elevation of the limiting steel die, and slightly lowering the elevation of the top surface of the spreading steel die by 1cm-3cm compared with the elevation of the loose base line; a small wood plate or a small bamboo rubber plate is padded under a steel supporting lug of the limiting steel die, so that the brittle damage of the well base reinforcement and the limiting steel die in the vibration process of the road roller is prevented; paving the top and the side of the steel die and brushing an anti-sticking agent;
s5, paving asphalt, and rolling by a road roller: the paver paves the whole width according to the loose base line, adopt 13t double steel wheel to carry on the bituminous pavement and press 1-2 times first, find out the spacing steel mould and shovel off its upper asphalt; carrying out repressing and final pressing on the asphalt pavement by adopting a 13t double-steel wheel and 30t rubber-wheel road roller;
s6, taking out the paving steel die and installing a flange limiting steel die from the following layers: after the final pressure of the asphalt pavement is finished, a wrench is adopted to adjust the front and back sub-screw rods, the diameter of the limiting steel die is reduced, and the well lid paving steel die is taken out after the paving steel die is separated from asphalt; taking out the fine adjustment batten; taking out the paving steel die, lifting the paving steel die to a next inspection well, and installing a limiting steel die; filling the gap of the support lug of the limiting steel mould with a heat-supplementing material, wherein the height of the heat-supplementing material is 2-3cm higher than that of a final-pressure finished pavement; after the material supplementing is finished, installing a flange limit steel die, and installing the flange limit steel die and the paving steel die taken out in the prior way in a staggered way at an angle of 45 degrees; rolling the asphalt pavement by a 13t double-steel-wheel and 30t rubber-wheel road roller to ensure that the filling materials at the gaps of the supporting lugs of the steel mould for asphalt paving of the lower layer are fully compacted to form a whole with the pavement; adjusting the positive and negative thread screws by using a spanner to ensure that the flange limiting steel die is separated from asphalt after the diameter of the flange limiting steel die is reduced, and taking out the flange limiting steel die;
s7, temporarily placing the well lid on the following layers: after the pavement on the lower layer is polished, workers lift the anti-settling well cover and temporarily place the anti-settling well cover on the inspection well, and pad the anti-settling well cover flange plate by using bricks or battens; and warning signs such as a reflective cone barrel and the like are prevented;
s8, construction of a sticky layer;
s9, installing a paving steel die on the upper layer and finely adjusting the elevation: the upper layer of the asphalt is modified asphalt, the asphalt is paved in a balance beam mode according to the designed loose paving thickness, a limiting steel die is installed in advance, the elevation of the paving steel die is finely adjusted according to the designed loose paving thickness of the upper layer, the designed loose paving thickness is slightly lower than 1-2cm, and the top and the side surfaces of the paving steel die are brushed with anti-sticking agents;
s10, paving asphalt on the upper layer, and rolling by a roller: the paver paves according to the designed loose paving thickness of the upper layer, the asphalt pavement of the upper layer adopts a 13t double-steel wheel to carry out primary pressing for 1-2 times, and after the primary pressing is finished, a limiting steel die is found out and the asphalt material at the upper part of the limiting steel die is removed; re-pressing and final pressing by adopting a 13t double-steel wheel and 30t rubber-tyred roller;
s11, taking out the spreading steel die, distributing and rolling: taking out the limiting steel die, manually shoveling hot materials to fill and fill the vacant positions of the steel supporting lugs of the upper-layer paving steel die, wherein the height of the fed materials is slightly higher than that of the pavement by 1-2cm, and compacting an asphalt material at the position of the fed materials of the inspection well mouth by adopting a 13t double-steel wheel; digging out asphalt at a hinge position of a reserved anti-settling well cover at an inspection well mouth by using an ocean pick;
s12, well lid placement, rolling and supplement rolling around the well lid: installing the anti-settling well lid on an inspection well mouth according to a preset hinge position of the anti-settling well lid, and manually filling the modified asphalt hot material below a flange plate of the anti-settling well lid and the inner wall of the well lid, wherein the thickness of the filler is about 1 cm; carrying out static pressure fixing on the anti-settling well lid by a special person commanding 13t double steel wheels, wherein the rolling speed is not higher than 2Km/h, vibrating and rolling the anti-settling well lid until the road surface is basically level, manually scattering fine materials to fill the rough surface around the flange plate, commanding 13t double steel wheels to carry out high-frequency low-amplitude vibration on the anti-settling well lid until the height difference between the well lid and the road surface is about 0-3mm, and then carrying out rolling forming by a 30t rubber wheel;
s13, opening traffic: the surface temperature of the pavement is lower than 50 ℃, and the traffic can be opened.
2. The method for constructing the anti-settling well lid as claimed in claim 1, wherein in step S5, asphalt No. 70 is used for paving, the temperature is not lower than 135 ℃, the internal temperature of the mixture is not lower than 130 ℃ when rolling is started, and the surface temperature is not lower than 80 ℃ after rolling is finished.
3. The method for constructing the anti-settling well lid according to claim 1, wherein in step S9, the height of the supporting ears of the asphalt pavement paving steel die of the road anti-settling well lid is 2-3 cm.
4. The method for constructing the anti-settling well lid as claimed in claim 1, wherein in step S10, the paving temperature is not lower than 160 ℃, the initial pressing starting temperature is not lower than 150 ℃, and the surface temperature after rolling is not lower than 90 ℃.
5. The method for constructing the anti-settling well lid according to claim 1, wherein the paving steel die comprises four cylinder walls with the cross section of 1/4 circular arc, a grating, a cover plate, a movable supporting lug and a positive and negative tooth adjusting screw and nut assembly; the four cylinder walls are detachably connected through a positive and negative tooth adjusting screw and nut assembly to form a cylinder with adjustable diameter;
the outer walls of the tops of two ends of each cylinder wall are respectively provided with one movable supporting lug, the inner walls of the tops of two ends are respectively provided with a first limiting bracket, the middle part of the inner wall of the top is respectively provided with a second limiting bracket, and the outer wall of the cylinder wall at the position of the second limiting bracket is respectively provided with a fixed supporting lug; the grid sliding frame is arranged on a first limit bracket and a second limit bracket, the cover plate is arranged on the grid in a bridging mode, and four cover holes are evenly distributed in the cover plate.
6. The method for constructing the anti-settling well lid according to claim 5, wherein the positive and negative teeth adjusting screw and nut assembly comprises a positive and negative teeth adjusting screw and two adjusting nuts, a limiting plate is respectively arranged on the top inner wall and the bottom inner wall of each of the two ends of the cylinder wall, the two ends of the positive and negative teeth adjusting screw respectively penetrate through the limiting plates of the two adjacent cylinder walls, and the two adjusting nuts are arranged at the two ends of the positive and negative teeth adjusting screw.
7. The method as claimed in claim 5, wherein the movable support lug comprises a main rib steel plate and a secondary rib steel plate perpendicular to the main rib steel plate, and the secondary rib steel plates on two adjacent walls are distributed in a staggered manner.
8. The method of any one of claims 5 to 7, wherein the diameter of the cover plate is less than 5mm of the inner diameter of the cylinder.
9. The method for constructing the anti-settling well lid as claimed in claim 1, wherein the flange limiting steel die comprises four cylinder walls with a cross section of 1/4 circular arc and a positive and negative tooth adjusting screw nut assembly; the four cylinder walls are detachably connected through positive and negative thread adjusting screw and nut assemblies to form a cylinder with adjustable diameter, and the outer end of the top of each cylinder wall is provided with an arc-shaped flange piece.
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| CN202110137142.2A CN112796346A (en) | 2021-02-01 | 2021-02-01 | Anti-settling well lid construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111041947A (en) * | 2019-12-30 | 2020-04-21 | 云南省建设投资控股集团有限公司 | Mold for anti-settling well lid construction limiting well ring and construction method thereof |
| CN113863383A (en) * | 2021-09-18 | 2021-12-31 | 上海二十冶建设有限公司 | Temporary covering tool for wellhead of inspection well |
| CN114703901A (en) * | 2022-02-16 | 2022-07-05 | 福建建工基础设施建设集团有限公司 | Construction method of rain sewage well cover |
-
2021
- 2021-02-01 CN CN202110137142.2A patent/CN112796346A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111041947A (en) * | 2019-12-30 | 2020-04-21 | 云南省建设投资控股集团有限公司 | Mold for anti-settling well lid construction limiting well ring and construction method thereof |
| CN113863383A (en) * | 2021-09-18 | 2021-12-31 | 上海二十冶建设有限公司 | Temporary covering tool for wellhead of inspection well |
| CN114703901A (en) * | 2022-02-16 | 2022-07-05 | 福建建工基础设施建设集团有限公司 | Construction method of rain sewage well cover |
| CN114703901B (en) * | 2022-02-16 | 2023-08-22 | 福建建工基础设施建设集团有限公司 | Construction method of rain sewage well lid |
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