CN108360570B - Lifting construction method for asphalt pavement inspection well - Google Patents
Lifting construction method for asphalt pavement inspection well Download PDFInfo
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- CN108360570B CN108360570B CN201810279522.8A CN201810279522A CN108360570B CN 108360570 B CN108360570 B CN 108360570B CN 201810279522 A CN201810279522 A CN 201810279522A CN 108360570 B CN108360570 B CN 108360570B
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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
- E02D29/128—Repairs of manhole shafts
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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
Abstract
The invention discloses a well-lifting construction method of an asphalt pavement inspection well, which acts on an asphalt pavement, wherein the asphalt pavement comprises a pavement and a road bed, and the well-lifting construction method comprises the following steps: arranging a prefabricated well; the deviation prevention of the temporary well cover: laying an intermediate layer; penetrating the well-lifting space; arranging an adjustable mould hanging system; preparing a well lifting ring; installing a steel well seat; and the well cover is installed, and the temporary well cover deviation prevention technology and the adjustable formwork lifting technology are matched in the asphalt pavement inspection well lifting construction method, so that the defects of the traditional well lifting construction method are overcome, the construction efficiency is improved, and the well lifting construction method has better economic and technical benefits.
Description
Technical Field
The invention relates to the field of municipal road construction, in particular to a well lifting construction method for an asphalt pavement inspection well.
Background
Today, environmental protection becomes a global concern, the urban road in China is being subjected to asphalt pavement paving engineering in a great trend, and the asphalt pavement has the advantages of dust prevention, no pollution, noise reduction, attractiveness and the like, so that the asphalt pavement is popular with vast urban constructors and people. However, the urban road is also characterized by more underground pipelines, which leads to the rapid increase of the number of road surface inspection wells, especially the rainwater and sewage inspection wells on the roadway or the electric power telecommunication inspection wells in residential areas, which are indispensable for urban municipal infrastructure and become a difficult point for disposing asphalt pavement.
With the development of traffic industry, the increase of motor vehicles aggravates the rolling of the inspection well on the asphalt road, however, the asphalt road has the characteristic of insufficient compactness, so that the inspection well on the asphalt road is generally damaged by falling, well periphery breakage, moving and the like under the repeated action of vehicle load and rainwater, and the condition of road surface moisture infiltration and repeated quality problems is caused. However, the descending of the inspection well brings about a lot of problems, namely, the appearance of urban road surfaces is affected, the road surfaces are hollow due to the depression of the inspection well, and the driving comfort is affected. For example, when the degree of sinking of some inspection wells is severe, the tires of the vehicle may slip or sink, which causes an immeasurable safety accident, and when the inspection wells are sunk or damaged, moisture or other substances on the road surface may enter the underground pipelines, which oxidizes or corrodes the underground pipelines, and even when the substances directly enter the underground pipelines from the gaps, which causes the safety problem of the underground pipelines, and the stability of the road surface structure is affected.
However, the traditional well-raising construction method has the problems of low construction efficiency, low installation precision, large economic payment and the like, namely, the traditional well-raising construction method has the defects of long well-raising construction period, influence on normal running of a road surface and low safety precision due to construction problems.
In summary, there is a need for a new way of raising a well for an asphalt pavement inspection well, which is convenient and fast to construct, high in installation accuracy, and outstanding in economic and technical benefits, so as to make up for the deficiencies of the conventional well raising construction method.
Disclosure of Invention
The invention aims to provide a shaft-lifting construction method for an asphalt pavement inspection shaft, which combines a temporary well cover deviation prevention technology with an adjustable mould lifting technology, avoids the defects of the traditional shaft-lifting construction method, improves the construction efficiency and has better economic and technical benefits.
The invention aims to provide a shaft lifting construction method for an asphalt pavement inspection shaft.
The invention aims to provide a well lifting construction method for an asphalt pavement inspection well.
The invention aims to provide a shaft lifting construction method for an asphalt pavement inspection well.
The invention aims to provide a well-lifting construction method for an asphalt pavement inspection well, wherein an auxiliary structure applied to the well-lifting construction method for the asphalt pavement inspection well can be recycled, and the construction cost is reduced.
The invention aims to provide a well-lifting construction method for an asphalt pavement inspection well, which is suitable for well lifting of inspection wells of flexible pavements and common pavements, namely, has a wide application range.
The invention aims to provide a shaft-lifting construction method for an asphalt pavement inspection shaft, which facilitates the shaft-lifting construction of the inspection shaft, greatly improves the construction efficiency and reduces the construction cost.
The invention aims to provide a well-lifting construction method of an asphalt pavement inspection well, which has the advantages of high safety precision and high accuracy of a well-lifting structure and prolongs the service life of the inspection well.
In order to realize the technical purpose, the invention adopts the following technical scheme: the well-lifting construction method of the asphalt pavement inspection well acts on the asphalt pavement, wherein the asphalt pavement comprises a pavement and a road bed, and comprises the following steps:
setting a prefabricated well: constructing a prefabricated shaft to a designed height of the top surface of the roadbed, and installing a prefabricated cover plate at the top of the prefabricated shaft;
the deviation prevention of the temporary well cover: penetrating the center of a temporary well lid deviation prevention structure through a temporary well lid arranged on the prefabricated cover plate, wherein the temporary well lid deviation prevention structure comprises a fastener, a push rod, a main rod, an elastic element and at least one auxiliary connecting rod, the fastener is controlled to open the auxiliary connecting rod, and the auxiliary connecting rod abuts against the inner wall of the prefabricated shaft;
laying an intermediate layer: sequentially laying a water-stabilizing subbase layer, a water-stabilizing base layer and a middle-lower surface layer on the temporary well cover;
penetrating the well-lifting space: taking out the crushed stone layer and the temporary well cover deviation preventing structure;
arranging an adjustable mould hanging system: arranging a prefabricated steel mould on the prefabricated cover plate to form a pouring area, and embedding an adjustable mould hanging structure in the prefabricated steel mould;
preparing a well lifting ring: pouring concrete in the mould hanging structure, and forming the well lifting ring in a pouring area;
installing a steel well seat: installing a well seat on the top surface of the well lifting ring and finely adjusting the elevation of the well seat; and
installing a well cover: and (4) installing the well cover after the well base construction is finished.
In some embodiments, in the temporary manhole cover deviation preventing step, the push rod is connected to the main rod in a pushing manner, the push rod and the elastic element are disposed in the main rod, the push rod is connected to the auxiliary link through the elastic element, and the movement of the push rod controls the extension of the auxiliary link through the elastic element.
In some embodiments, the push rod passes through a preformed hole of the temporary well lid, screwing the fastener until the auxiliary link abuts against an inner wall of the preformed well bore.
In some embodiments, the laying of the intermediate layer further comprises the steps of:
laying a water stabilizing base: paving the water stabilizing base on the roadbed and the temporary well cover, marking a well position after paving, and clearing stabilizing materials to empty a first well lifting space;
paving a water-stable base layer: continuously paving a cement stabilized base layer on the cement stabilized base, marking a well position after the paving is finished, and clearing stabilizing materials to empty a second well lifting space; and
laying the following layers: and continuously paving the middle and lower surface layers on the cement stabilized base layer, marking the well position after paving is finished, and cleaning the paving materials to empty a third well lifting space.
In some embodiments, the laying of the intermediate layer further comprises the steps of:
the first well-raising space, the second well-raising space and the third well-raising space are communicated with each other, and the opening positions of the cross sections are the same in size, so that a cylindrical well-raising space is formed together.
In some embodiments, in the step of installing the adjustable formwork hanging system, the formwork hanging structure includes a vertical sleeve, a horizontal sleeve, an adjustable brace, a horizontal suspender, and an anchoring rib, wherein the vertical sleeve is fixed to the horizontal suspender, the horizontal sleeve is disposed on an outer wall of the vertical sleeve, the adjustable brace is disposed on the horizontal sleeve, and the horizontal suspender is fixed to the middle-lower layer through the anchoring rib.
In some embodiments, the vertical sleeve includes an elastic sheet and a core column, the length of the adjustable stay bar can be adjusted, the adjustable stay bar is connected with the core column through the elastic sheet, and when the core column is inserted into the vertical sleeve, the adjustable stay bar props against the prefabricated steel die.
In some embodiments, embedding the adjustable form-lifting structure further comprises the steps of: and fixing the vertical sleeve to the transverse suspension rod, fixing the transverse suspension rod to the middle and lower surface layers through the anchoring ribs, inserting the core column into the vertical sleeve, and tightly jacking the adjustable support rod to the prefabricated steel die.
In some embodiments, the casting elevation of the raised collar is the design road elevation minus the well lid thickness minus the reserved space thickness layer.
In some embodiments, the first lift well space is excavated by backfilling with a dense mesh screen-wrapped gravel layer to a design top elevation of the water-stable foundation.
Drawings
Fig. 1 is a construction drawing after completion of the construction method for lifting the well by using the asphalt pavement inspection well according to the embodiment of the invention.
Fig. 2 is a schematic structural diagram of an application of the temporary manhole cover deviation prevention technology in the asphalt pavement manhole shaft lifting construction method according to an embodiment of the present invention.
Fig. 3 is a construction schematic view of the asphalt pavement inspection well lifting construction method according to the embodiment of the invention.
Fig. 4 is an application structure diagram of the adjustable formwork lifting technology of the asphalt pavement inspection well lifting construction method according to the embodiment of the invention.
Fig. 5 is a flow chart of a method of the asphalt pavement inspection well lifting construction method according to the embodiment of the invention.
In the figure: 1-prefabricating a shaft; 2-temporary well covers; 3-a fastener; 4-a push rod; 5-a resilient element; 6, prefabricating a cover plate; 7-way bed; 8-the main rod; 9-an auxiliary link; 10-dense mesh net; 11-a crushed stone layer; 12-a water stable underlayer; 13-a water stable base layer; 14-middle lower layer; 15-anchoring ribs; 16-liter walling cribs; 17-a boom; 18-a fixed ring; 19-core column; 20-a spring plate; 21-a vertical sleeve; 22-a transverse sleeve; 23-an adjustable stay bar; 24-prefabricating a steel mould; 25-limiting buckles; 26-a hinge shaft; 27-a well cover; 28-a steel well base; 29-anchor bolts; and 30-designing a pavement.
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 that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
In order to solve the problems in the prior art, the invention provides a shaft lifting construction method for an asphalt pavement inspection shaft, wherein the shaft lifting construction method for the asphalt pavement inspection shaft is combined with a temporary well cover deviation prevention technology and an adjustable formwork lifting technology, so that the defects of the traditional shaft lifting construction method are overcome, the shaft lifting construction efficiency is improved, and the shaft lifting construction method has better economic and technical benefits.
The inspection well refers to a well head which is arranged in a building district (a residential area, a public building area, a factory area and the like) and is embedded with a pipeline with an outer diameter not larger than a certain size and an embedding depth not higher than a certain height, and is used for inspecting building accessories, such as an inspection well which is positioned on a roadway and used for rainwater and sewage inspection or an inspection well which is positioned in the residential area and used for laying electric power telecommunication lines. The asphalt pavement comprises a pavement and a roadbed, wherein the roadbed is used as a bearing body of the pavement to bear the pressure from the pavement, and the roadbed is arranged below the pavement to a certain size. That is, the manhole is formed on the asphalt road, wherein the manhole penetrates the roadbed and communicates the building accessories with the space above the road surface, and generally, the height of the manhole is horizontal to a preset design road surface.
The invention provides a well-lifting method for an asphalt pavement inspection well, which comprises the following steps:
placing a prefabricated well: during construction, firstly, measurement and line laying are completed, the prefabricated shaft 1 is constructed to the designed height of the top surface of the road bed, and a prefabricated cover plate 6 is installed at the top of the prefabricated shaft 1.
Specifically, the height of the road bed 7 from the designed road surface 30 and the height of the test road bed 7 are measured, an appropriate prefabricated shaft 1 is selected, the prefabricated shaft 1 is arranged in the built-in space of the inspection well, wherein the prefabricated shaft 1 is abutted against the inner wall of the road bed 7, the top of the prefabricated shaft 1 is constructed to the top surface elevation of the designed road bed, and a cylindrical well space is defined in the prefabricated shaft 1.
In addition, the prefabricated cover plate 6 is arranged on the top of the prefabricated shaft 1, one side of the prefabricated cover plate 6 is also close to the inner wall of the road bed 7, and the height of the prefabricated cover plate 6 can be just equal to that when the prefabricated cover plate 6 is placed on the prefabricated shaft 1, the top surface of the prefabricated cover plate 6 is horizontal to the top surface of the road bed 7.
The prefabricated cover plate 6 is a hollow circular ring-shaped structure, that is, a hollow space is defined inside the prefabricated cover plate 6, the hollow space is implemented in a circular ring shape, the size of the circular ring shape varies according to the inspection well and the prefabricated shaft 1, in an embodiment of the present invention, the diameter of the hollow space is 500mm, and the model of the prefabricated shaft 1 is DN 700.
When the prefabricated cover plate 6 is arranged in the prefabricated shaft 1, the hollow space penetrates through the cylindrical well space and is communicated with the environment above the road bed. In an embodiment of the present invention, the opening area of the prefabricated cover plate 6 is not larger than the opening area of the prefabricated shaft 1, and the prefabricated cover plate 6 and the prefabricated shaft 1 are both symmetrical structures and are symmetrically arranged along a central axis.
The deviation prevention of the temporary well cover: and (3) passing the center of the temporary well lid deviation prevention structure through the temporary well lid arranged on the prefabricated cover plate 6, and controlling the fastener 3 to prop open the auxiliary connecting rod 9, wherein the auxiliary connecting rod 9 abuts against the inner wall of the prefabricated shaft 1.
Specifically speaking, an interim well lid 2 by central symmetry set up in on the prefabricated apron 6, wherein form prefabricated hole on the interim well lid 2, wherein prefabricated hole with the center of interim well lid 2 sets up as the center. That is, the temporary manhole cover 2 is also implemented as a hollow circular ring structure, and the prefabricated hole is a hollow structure thereof. It should be noted that when the temporary well lid 2 is placed on the prefabricated cover plate 6, the central axes of the temporary well lid 2 and the prefabricated hole coincide with the central axis of the prefabricated cover plate 6, and in the embodiment of the present invention, the size of the reserved hole is 50 mm.
The structure of deviating from is prevented to interim well lid includes fastener 3, push rod 4, mobile jib 8, elastic element 5 and an at least auxiliary connecting rod 9, wherein push rod 4 and elastic element 5 arranges in the mobile jib 8, auxiliary connecting rod 9 connect in the other end of mobile jib 8, and with mobile jib 8 gives off to symmetry all around as the center, elastic element 5's one end connect in push rod 4, the other end connect in auxiliary connecting rod 9, auxiliary connecting rod 9 struts and forms the auxiliary surface after opening.
Specifically, the elastic element 5 is disposed on the main rod 8, one end of the elastic element 5 is connected to the push rod 4, and the other end of the elastic element 5 is connected to the auxiliary link 9, when the push rod 4 is far away from the main rod 8, the elastic element 5 is in a natural state, at this time, the auxiliary link 9 is contracted to be close to the main rod 8, when the push rod 4 is close to the main rod 8, the elastic element 5 is pushed by the push rod 4 to be extruded, and the auxiliary link 9 is opened to the periphery with the main rod 8 as a center.
In addition, the fastening member 3 is disposed at one end of the push rod 4, the push rod 4 is sized to fit the pre-fabricated hole such that the push rod 4 can pass through the temporary well lid 2, and the fastening member 3 is disposed on the push rod 4 to fasten the push rod 4 and the temporary well lid 2, in the embodiment of the present invention, the fastening member 3 is a bolt. In addition, the push rod 4 can be pushed to open the auxiliary connecting rod 9 by screwing the fastener 3, so that the temporary well deviation preventing effect is achieved.
Summarizing, the main rod 8 passes through the prefabricated hole and is connected with the temporary well lid 2 through the fastener 3, since the central axis of the prefabricated hole coincides with the central axis of the prefabricated well bore 1, the main rod 8 is also located on the central axis, the fastener 3 is screwed to push the push rod 4, the push rod 4 props the auxiliary connecting rod 9 open through the action of the elastic element 5 until the auxiliary connecting rod 9 abuts against the inner wall of the prefabricated well bore 1, so as to play a role of preventing the temporary well lid 2 from deviating, and the structural strength is improved, in the embodiment of the invention, the diameter of the supporting surface formed by the auxiliary connecting rod 9 is 700 mm.
Laying an intermediate layer: and a water-stable subbase layer 12, a water-stable base layer 13 and an intermediate and lower surface layer 14 are sequentially paved on the temporary well cover 2.
The step of laying the intermediate layer can in turn be divided into laying the water-stable foundation 12: and paving the water stabilizing base 12 on the road bed 7 and the temporary well cover 2, marking the well position after paving, and clearing the stabilizing material to empty a first well lifting space.
Specifically, in this step, the water-stable foundation 12 is a cement-stabilized macadam foundation, i.e., cement stabilizer is laid on the road bed 7 and the temporary manhole cover 2 to form the water-stable foundation 12 with a certain thickness. And after the paving is finished, a measurer marks the well position by using coordinates, defines the first well lifting space and timely excavates the stable material in the well lifting space.
In the embodiment of the present invention, the first lift well space is located at a width of 250 mm and 350mm, preferably 300mm from the well wall to the outside, and the depth penetrates through the stabilizing base 12 to the top of the temporary well lid 2, that is, the first lift well space needs to be dug out in time, and in addition, the crushed stone layer 11 wrapped by the dense mesh net 10 in the digging section is backfilled to the designed top elevation of the water stabilizing base 12.
The step of laying the intermediate layer can be divided into laying the water-stable base layer 13: and (3) continuously paving a cement stabilized base layer 13 on the cement stabilized base 12, marking the well position after the paving is finished, and clearing the stabilizing material to empty a second well-raising space.
The construction step of this step is the same as the laying of the water stabilizing base layer 12, except that the laying material is different, and the height of the water stabilizing base layer 13 is controlled at 150-200mm, preferably 180 mm.
Similarly, the step of laying the intermediate layer can be divided into laying the intermediate and lower layers 14: and continuously paving the middle and lower surface layers 14 on the cement stabilized base layer 13, marking the well positions after the paving is finished, and clearing the paving materials to empty a third well lifting space.
The construction step is the same as the laying of the stabilizing base 12, except that the laying material is different, and the height of the middle and lower layers 14 is controlled to be 100-150mm, preferably 120 mm.
After the intermediate layer is laid, the method comprises the following steps:
penetrating the well-lifting space: take out rubble layer 11 and inclined to one side structure is prevented to interim well lid.
And continuously taking out stabilizing materials and paving materials to form a first well lifting space, a second well lifting space and a third well lifting space in the construction process, wherein the first well lifting space, the second well lifting space and the third well lifting space are communicated with each other to form a cylindrical well lifting space, namely the cross sections of the first well lifting space, the second well lifting space and the third well lifting space are controlled on the same vertical plane, and the cross sections of the first well lifting space, the second well lifting space and the third well lifting space are the same and comprise positions, areas and the like.
After the middle layer and the well lifting space are formed, the well lifting method of the bituminous pavement inspection well comprises the following steps:
arranging an adjustable mould hanging system: and arranging a prefabricated steel die 24 on the prefabricated cover plate 6, and embedding an adjustable die hanging structure in the prefabricated steel die 24.
Specifically, the adjustable steel mold comprises a prefabricated steel mold 24, wherein the prefabricated steel mold 24 is in a hollow cylindrical shape and is disposed on the prefabricated cover plate 6 to define a mold space in the shaft-lifting space, and it is noted that a central axis of the prefabricated steel mold 24 always corresponds to a central axis of the prefabricated shaft 1.
The adjustable die hanging structure comprises a vertical sleeve 21, a transverse sleeve 22, an adjustable stay bar 23, a transverse suspension rod 17 and an anchoring rib 15, wherein the vertical sleeve 21 is fixed on the transverse suspension rod 17, the outer wall of the vertical sleeve 21 is provided with the transverse sleeve 22, the adjustable stay bar 23 is arranged in the space in the transverse sleeve 22, and the transverse suspension rod 17 is fixed on the lower middle layer 14 through the anchoring rib 15.
In addition, the vertical sleeve 21 includes an elastic sheet and a core column 19, the length of the adjustable stay bar 23 can be adjusted, the adjustable stay bar 23 is connected to the core column 19 through the elastic sheet, and when the core column 19 is inserted into the vertical sleeve 21, the adjustable stay bar 23 abuts against the prefabricated steel mold 24.
Specifically, both ends of the transverse hanging bar 17 are fixed to the middle lower layer 14, and in the embodiment of the present invention, the transverse hanging bar 17 is fixed to the middle lower layer 14 by the anchoring ribs 15. The vertical sleeve 21 is perpendicular to the transverse suspender 17, fixed on the transverse suspender 17, and located on the central axis of the prefabricated steel die 24.
The transverse sleeve 22 is connected and communicated with the vertical sleeve 21, the adjustable stay bar 23 is arranged in the transverse sleeve 22, the length of the adjustable stay bar 23 is adjustable, the adjustable stay bar 23 is provided with a limit buckle 25, and the limit buckle 25 is arranged on the adjustable stay bar 23 to fix the length of the adjustable stay bar 23.
The vertical sleeve 21 is internally provided with an elastic sheet which is connected with the adjustable support rod 23, and when the core column 19 is inserted into the vertical sleeve 21, the core column 19 compresses the adjustable support rod 23 and the prefabricated steel die 24 through the elastic sheet.
In other words, embedding the adjustable suspended form structure further comprises the steps of: fixing the vertical sleeve 21 on the horizontal suspender 17, fixing the horizontal suspender 17 on the middle and lower surface layers 14 through the anchoring rib 15, inserting the core column 19 into the vertical sleeve 21, and tightly supporting the adjustable stay bar 23 on the prefabricated steel die 24.
After the adjustable hoisting die structure is arranged in the well-lifting space, the method further comprises the following steps:
preparing a well lifting ring: concrete is poured in the mould hanging structure, and the well lifting ring 16 is formed on the glue pouring layer.
Specifically, in this step: pouring C25 concrete into the hanging mould, and vibrating to compact, wherein the concrete enters the position between the precast steel mould 24 and the middle layer through the hanging mould structure, wherein the pouring height h of the well lifting ring = the designed road surface height-the well lid thickness-20 mm, and a gap of at least 20m is left between the well base and the concrete surface, and of course, the 20mm is not taken as a limiting condition but as a priority scheme. This height is used for fine setting well lid elevation, treats before the concrete initial set, pre-buried phi 18mm rag bolt three or four. The outer diameter of the well lifting ring is larger than that of the prefabricated shaft, and vertical foundation bolts are embedded in the well lifting ring.
In addition, after the lifting ring 16 is formed, the adjustable suspended mould structure is taken out, and the method comprises the following steps:
installing a steel well seat: and installing a well seat 28 on the top surface of the well lifting ring 16 and finely adjusting the elevation of the well seat.
And in the fine adjustment process of the well seat 28, a well-shaped hanging line is adopted, the hanging line range is 2-3 m outside the well wall, a screw cap is screwed in time after adjustment is completed, the rest exposed foundation screws are cut off after the screw cap is determined not to be loosened, C25 fine stone concrete around the well cover is poured, and covering and watering maintenance are carried out. Wherein the well seat 28 is formed on the raised collar 16 and rests against the intermediate layer.
Installing a well cover: and the well cover 27 is installed after the well base construction is finished.
In the embodiment of the present invention, the manhole cover 27 is connected to the design road surface by the hinge shaft 26, that is, the elevation of the manhole base 28 matches the position of the manhole cover 27, so that when the manhole cover 27 is placed on the manhole base 28, the surface of the manhole cover 27 is horizontal to the design road surface 30.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (2)
1. The well-lifting construction method of the asphalt pavement inspection well is applied to the asphalt pavement, wherein the asphalt pavement comprises a pavement and a road bed, and is characterized by comprising the following steps of:
setting a prefabricated well: constructing a prefabricated shaft to a designed height of the top surface of the roadbed, and installing a prefabricated cover plate at the top of the prefabricated shaft;
the deviation prevention of the temporary well cover: the temporary well lid deviation preventing structure comprises a fastener, a push rod, a main rod, an elastic element and at least one auxiliary connecting rod, wherein the main rod penetrates through the prefabricated hole and is connected with the temporary well lid through the fastener;
the size of the push rod is matched with the prefabricated hole, the push rod and the elastic element are arranged in the main rod, the auxiliary connecting rod is connected to the other end of the main rod and symmetrically distributed around the main rod, the push rod is connected with the auxiliary connecting rod through the elastic element, the movement of the push rod controls the extension of the auxiliary connecting rod through the elastic element, an auxiliary surface is formed after the auxiliary connecting rod is spread, the fastening piece is arranged at one end of the push rod and is screwed to push the push rod, and the push rod spreads the auxiliary connecting rod through the action of the elastic element until the auxiliary connecting rod abuts against the inner wall of the prefabricated shaft;
laying an intermediate layer: sequentially laying a water-stabilizing subbase layer, a water-stabilizing base layer and a middle-lower surface layer on the temporary well cover; wherein laying a water-stable sub-base layer: paving cement stabilizing materials on the road bed and the temporary well cover to form the water stabilizing subbase layer, marking a well position after the paving is finished, clearing the cement stabilizing materials to empty a first well lifting space, and backfilling a gravel layer wrapped by a dense mesh net to the designed top elevation of the water stabilizing subbase layer when the first well lifting space is excavated;
paving a water-stable base layer: continuously paving a cement stabilized base layer on the cement stabilized base layer, marking a well position after the paving is finished, and clearing stabilizing materials to empty a second well lifting space; and
laying the following layers: continuously paving the middle and lower surface layers on the cement stabilized base layer, marking the well position after paving is finished, and cleaning the paving materials to empty a third well lifting space;
penetrating the well-lifting space: continuously taking out cement stabilizing materials and laying materials to form a first well lifting space, a second well lifting space and a third well lifting space in the construction process, wherein the first well lifting space, the second well lifting space and the third well lifting space are communicated with each other, the openings of the cross sections are the same in size, a cylindrical well lifting space is formed together, and the gravel layer and the temporary well lid deviation prevention structure are taken out;
arranging an adjustable mould hanging system: arranging a prefabricated steel die on the prefabricated cover plate to form a pouring area, embedding an adjustable die hanging structure in the prefabricated steel die, wherein the adjustable die hanging structure comprises a vertical sleeve, a transverse sleeve, an adjustable support rod, a transverse suspension rod and an anchoring rib, the vertical sleeve is fixed on the transverse suspension rod and is positioned on a central axis of the prefabricated steel die, the transverse sleeve is arranged on the outer wall of the vertical sleeve, the transverse sleeve is connected and communicated with the vertical sleeve, the adjustable support rod is arranged on the transverse sleeve, the transverse suspension rod is fixed on the middle lower surface layer, the vertical sleeve comprises an elastic sheet and a core column, the length of the adjustable support rod can be adjusted, the adjustable support rod is connected with the core column through the elastic sheet, and when the core column is inserted into the vertical sleeve, the core column compresses the adjustable support rod and the prefabricated steel die through the elastic sheet, the adjustable support rod is provided with a limit buckle, wherein the limit buckle is arranged on the adjustable support rod;
fixing the vertical sleeve to the transverse suspension rod, fixing the transverse suspension rod to the middle lower surface layer through the anchoring rib, inserting the core column into the vertical sleeve, and tightly jacking the adjustable stay bar on the prefabricated steel die;
preparing a well lifting ring: pouring concrete in the adjustable mould hanging structure, and forming the well lifting ring in a pouring area;
installing a steel well seat: installing a well seat on the top surface of the well lifting ring and finely adjusting the elevation of the well seat; and
installing a well cover: and (4) installing the well cover after the well base construction is finished.
2. The method for lifting the asphalt pavement inspection well according to claim 1, wherein the casting elevation of the lifting ring is the designed pavement elevation minus the well cover thickness minus the reserved space thickness layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810279522.8A CN108360570B (en) | 2018-03-30 | 2018-03-30 | Lifting construction method for asphalt pavement inspection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810279522.8A CN108360570B (en) | 2018-03-30 | 2018-03-30 | Lifting construction method for asphalt pavement inspection well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108360570A CN108360570A (en) | 2018-08-03 |
| CN108360570B true CN108360570B (en) | 2020-11-20 |
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| CN110820808A (en) * | 2018-08-10 | 2020-02-21 | 山东中宏路桥建设有限公司 | Method for installing rain sewage well cover on asphalt pavement |
| CN111733887A (en) * | 2020-06-15 | 2020-10-02 | 中国一冶集团有限公司 | Construction method of asphalt concrete road inspection well first-rising structure |
| CN113863383B (en) * | 2021-09-18 | 2023-06-23 | 上海二十冶建设有限公司 | Temporary covering tool for inspection well mouth |
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| CN104787469A (en) * | 2014-01-17 | 2015-07-22 | 蒋桂岁 | Foldable inner support device |
| CN107386329A (en) * | 2017-09-14 | 2017-11-24 | 中国水利水电第五工程局有限公司 | A kind of pit shaft mould plate supporting device and its peace tear method open |
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| CN104787469A (en) * | 2014-01-17 | 2015-07-22 | 蒋桂岁 | Foldable inner support device |
| CN107386329A (en) * | 2017-09-14 | 2017-11-24 | 中国水利水电第五工程局有限公司 | A kind of pit shaft mould plate supporting device and its peace tear method open |
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