CN114960334A - Assembled airport pavement structure and construction method thereof - Google Patents
Assembled airport pavement structure and construction method thereof Download PDFInfo
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- CN114960334A CN114960334A CN202210545545.5A CN202210545545A CN114960334A CN 114960334 A CN114960334 A CN 114960334A CN 202210545545 A CN202210545545 A CN 202210545545A CN 114960334 A CN114960334 A CN 114960334A
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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
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
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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
- E01C3/00—Foundations for pavings
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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
- E01C5/00—Pavings made of prefabricated single units
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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
- E01C5/00—Pavings made of prefabricated single units
- E01C5/06—Pavings made of prefabricated single units made of units with cement or like binders
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Abstract
The application relates to the technical field of constructional engineering and discloses an assembled airport pavement structure and a construction method thereof. The assembled airport pavement structure comprises a base layer and a surface layer laid on the base layer, wherein the surface layer comprises a plurality of prefabricated plates and fasteners, and each prefabricated plate comprises a main body part and a convex part arranged on one side of the main body part in a protruding mode; the main body parts of the prefabricated plates are arranged towards the base layer and form a plurality of columns of upright prefabricated plate groups, and gaps are formed between every two adjacent columns of upright prefabricated plate groups; the protrusions of the plurality of prefabricated plates are arranged towards the base layer and form a plurality of columns of inverted prefabricated plate groups, and the inverted prefabricated plate groups are embedded in gaps formed by two adjacent columns of upright prefabricated plate groups; the prefabricated plates which are arranged in an overlapped mode are distributed in a staggered mode along the first direction, and the fasteners are connected with the main body portions of the prefabricated plates which are arranged in an overlapped mode. The application provides an assembled airport pavement structure and a construction method thereof, which can solve the technical problems that the existing assembled airport pavement structure is complex, inconvenient to install, poor in inter-plate force transfer effect, poor in waterproof performance and the like.
Description
Technical Field
The application relates to the technical field of constructional engineering, in particular to an assembled airport pavement structure and a construction method thereof.
Background
The airport pavement is one or more layers of artificial structures paved on the natural soil foundation and the top surface of a base layer by using road building materials, and is a plateau for taking off, landing, sliding, maintaining and parking of airplanes.
At present, airports in China mainly adopt cast-in-place cement concrete pavements, and the pavement construction process is low in automation degree, long in period and high in manpower and material cost. In the related art, in order to overcome many defects of the cast-in-place concrete process, an assembled pavement is designed, namely, a precast slab is used for replacing the traditional cast-in-place pavement slab.
The existing assembly type pavement structure is single in type, the prefabricated plates are connected through a dowel bar or a prestressed steel bar and other structures, force transmission between the plates is influenced, and in practical application, the problems that installation accuracy is not easy to control, assembly is inconvenient, construction efficiency is low and the like exist.
Disclosure of Invention
The application aims to provide an assembled airport pavement structure and a construction method thereof, and the assembled airport pavement structure can solve the technical problems that an existing assembled airport pavement connecting structure is complex, inconvenient to install, poor in inter-plate force transmission effect, poor in waterproof performance and the like.
In order to solve the technical problem, in a first aspect, the present application provides an assembled airport pavement structure, including a base layer and a surface layer laid on the base layer, where the surface layer includes a plurality of prefabricated panels and fasteners, the prefabricated panels include main body portions and protruding portions, the main body portions and the protruding portions have the same thickness, the main body portions and the protruding portions have the same length in a first direction, and the protruding portions are protruded on one side of the main body portions;
the main body parts of the prefabricated plates are arranged towards the base layer and form a plurality of columns of upright prefabricated plate groups, the upright prefabricated plate groups extend along a first direction, and a gap is formed between every two adjacent columns of upright prefabricated plate groups;
the protrusions of the plurality of prefabricated panels are arranged towards the base layer and form a plurality of columns of inverted prefabricated panel groups, the inverted prefabricated panel groups extend along a first direction, and the inverted prefabricated panel groups are embedded in the gaps formed by two adjacent columns of the upright prefabricated panel groups;
the prefabricated plates which are arranged in an overlapped mode are distributed in a staggered mode along a first direction, and the fastening pieces are connected with the main body parts of the prefabricated plates which are arranged in an overlapped mode.
In one embodiment, the protruding portion of the prefabricated panel is in a strip shape and is disposed in the middle of the main body portion, and the cross section of the prefabricated panel is in a T shape.
In one embodiment, the prefabricated panels arranged in a stacked manner are staggered in the first direction by a preset distance, and the preset distance is half of the length of the prefabricated panel in the first direction.
In an embodiment, the main body of the prefabricated slab is provided with a plurality of mounting holes, and the mounting holes are distributed on two opposite sides of the protruding part; the fastening piece comprises a high-strength bolt, and the high-strength bolt penetrates through the mounting holes of the prefabricated plates which are arranged in an overlapped mode.
In one embodiment, the mounting hole comprises a fixing part and a connecting part which are communicated, the fixing part is positioned on one surface of the main body part, which is far away from the bulge part, the hole diameter of the fixing part is larger than that of the connecting part, and a step surface is formed at the position of the hole opening; the fastener still include with the nut of high strength bolt adaptation, the head of high strength bolt set up in the main part is close to the basic unit in the mounting hole of prefabricated plate to support in corresponding on the ladder face, the nut install in the free end of high strength bolt, the nut set up in the main part is kept away from the basic unit in the mounting hole of prefabricated plate, and support in corresponding on the ladder face.
In one embodiment, the fixing portion where the nut is located is poured with concrete.
In one embodiment, the diameter of the connecting portion of the mounting hole is larger than the diameter of the high-strength bolt.
In one embodiment, a waterproof layer is arranged on one side of the main body part of the prefabricated plate, which faces the bulge part.
In one embodiment, the waterproof layer is mortar or a leather mat.
The application provides an assembled airport pavement structure, including the basic unit and lay the surface course in the basic unit, the surface course is mated formation by the polylith prefabricated plate, assembled airport pavement structure utilizes the assembled technique to replace traditional cast-in-place technology, and convenient construction, the efficiency of construction is high. The prefabricated plate comprises a main body part and a protruding part, the main body part and the protruding part are the same in thickness, the protruding part is arranged on one side of the main body part in a protruding mode, the length of the main body part is the same as that of the protruding part, and the single plate of the prefabricated plate with the special-shaped structure is small in mass and convenient to hoist. In addition, the main body parts of the prefabricated panels are arranged towards the base layer to form a multi-column upright prefabricated panel group, the convex parts of the prefabricated panels are arranged towards the base layer to form a multi-column inverted prefabricated panel group, the inverted prefabricated panel group is embedded in a gap formed between two adjacent columns of upright prefabricated panel groups, the main body parts of the prefabricated panels arranged towards the base layer by the convex parts and the main body parts of the prefabricated panels arranged towards the base layer by the main body parts are overlapped and fixedly connected by a fastener, so that a plurality of prefabricated panels facing different directions are assembled into a whole to form a surface layer with the same thickness and smooth surface, and because no installation gap exists between the adjacent prefabricated panels, a plurality of processes of secondary slurry filling, gap filling, surface plastering and the like can be omitted, thereby further simplifying construction steps, improving construction efficiency, being beneficial to realizing the quick assembly of the surface layer, and simultaneously, because no vertical end surface exists between the adjacent prefabricated panels, can also improve the waterproof performance of the surface layer and avoid the ground water from invading the base layer. In addition, the fastening piece is used for replacing connecting structures such as a dowel bar or a prestressed steel bar, the structure of the prefabricated slab can be further simplified, the installation precision is easy to control, the problem of stress concentration at the connecting position of the prefabricated slab caused by impact load can be solved, the integral performance of the surface layer is good, the surface layer is not easy to damage, and the reliability is high.
In a second aspect, the present application provides a construction method of a fabricated airport pavement structure for laying the fabricated airport pavement structure as described in the first aspect, the construction method comprising:
laying a base layer;
laying a plurality of columns of upright prefabricated plate groups on the base layer to form a gap between two adjacent columns of upright prefabricated plate groups, wherein main body parts of prefabricated plates of the upright prefabricated plate groups are arranged towards the base layer;
laying a plurality of columns of inverted prefabricated plate groups on the base layer, embedding the inverted prefabricated plate groups in the gap formed by two adjacent columns of upright prefabricated plate groups, and distributing the prefabricated plates of the upright prefabricated plate groups and the prefabricated plates of the inverted prefabricated plate groups in a staggered manner, wherein the convex parts of the prefabricated plates of the inverted prefabricated plate groups face the base layer;
and installing a fastener, so that the fastener is connected with the prefabricated plates which are arranged in an overlapped mode.
The construction method of the assembled airport pavement structure comprises the steps of laying a base layer, laying upright prefabricated plate groups on the base layer, laying inverted prefabricated plate groups and installing fasteners, wherein each upright prefabricated plate group and each inverted prefabricated plate group comprise a plurality of prefabricated plates with different laying directions, each inverted prefabricated plate group is embedded in a gap between two adjacent upright prefabricated plate groups to form a surface layer with the same thickness and smooth surface, the assembly technology is used for replacing the traditional cast-in-place technology, the fasteners are used for replacing an inter-plate force transmission rod connecting structure, multiple processes such as secondary slurry replenishing, gap filling and surface plastering are avoided, the construction difficulty can be reduced, the construction steps are simplified, the construction efficiency is improved, the rapid assembly of the surface layer and the rapid laying of the assembled airport pavement structure are facilitated, and the stable surface layer structure can be laid, Assembled airport pavement structure that water-proof effects is good.
Drawings
In order to more clearly illustrate the embodiments of the present application 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 application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a fabricated airport pavement structure provided in an embodiment of the present application;
FIG. 2 is a top plan view of the assembled airfield pavement structure of FIG. 1;
FIG. 3 is a schematic structural view of prefabricated panels in the fabricated airport pavement structure of FIG. 1;
FIG. 4 is a side view of the prefabricated panel shown in FIG. 4;
fig. 5 is a flowchart of a construction method of an assembled airport pavement structure according to an embodiment of the present application.
Description of the main element symbols:
100. fabricated airfield pavement structures;
1. a base layer; 11. soil foundation; 12. a cushion layer; 13. a water-stable layer;
2. a surface layer; 20. prefabricating a slab; 21. a main body portion; 211. mounting holes; 2111. a fixed part; 2112. a connecting portion; 2113. a step surface; 22. a raised portion.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly attached to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the patent. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
In a first aspect, as shown in fig. 1-4, the present application provides a fabricated airport pavement structure 100 for use in an airport as a plateau for aircraft takeoff, landing, taxiing and maintenance, and parking.
As shown in fig. 1 and 2, the fabricated airfield pavement structure 100 provided by the present application includes a base layer 1 and a surface layer 2 laid on the base layer 1. Wherein, basic unit 1 includes soil matrix 11, bed course 12 and the water stabilization layer 13 that sets gradually from bottom to top, and basic unit 1 plays the supporting role to surface course 2 as the basis of road surface. The facing layer 2 comprises a plurality of prefabricated panels 20 and fastening elements (not shown) which are tightly connected, and the facing layer 2 serves as a pavement surface layer for supporting the aircraft structure and preventing ground water from penetrating into the base layer 1.
As shown in fig. 1, 3 and 4, the prefabricated panel 20 includes a main body 21 and a protruding portion 22 having the same thickness, the main body 21 and the protruding portion 22 have the same length in a first direction (e.g., a direction X shown in fig. 1), and the protruding portion 22 is protruded to one side of the main body 21. The main body parts 21 of the prefabricated panels 20 are arranged towards the base layer 1 and form a plurality of columns of upright prefabricated panel groups (for example, the prefabricated panel group shown as a in fig. 1), and a gap is formed between two adjacent columns of upright prefabricated panel groups. The convex portions 22 of the prefabricated panels 20 are arranged towards the base layer 1 and form a plurality of rows of inverted prefabricated panel groups (such as the prefabricated panel group B shown in figure 1), and the inverted prefabricated panel groups are embedded in gaps formed by two adjacent rows of upright prefabricated panel groups. The main body 21 of the prefabricated panels 20 in the upright prefabricated panel group is overlapped with the main body 21 of the prefabricated panels 20 in the inverted prefabricated panel group, and the convex parts 22 of the prefabricated panels 20 in the upright prefabricated panel group are tightly connected with the main body 21 of the prefabricated panels 20 in the inverted prefabricated panel group.
As shown in fig. 1 and 2, the upright prefabricated panel group and the inverted prefabricated panel group are extended along a first direction, two prefabricated panels 20 arranged in a stacked manner are distributed in a staggered manner along the first direction, so that the main body 21 of each prefabricated panel 20 can be stacked on the main bodies 21 of four prefabricated panels 20, and fasteners are connected with the main bodies 21 of the prefabricated panels 20 arranged in a stacked manner, so that a plurality of prefabricated panels 20 are integrally connected in the vertical direction and the horizontal direction.
The application provides an assembled airport pavement structure 100, including basic unit 1 and lay surface course 2 on basic unit 1, surface course 2 is formed by polylith prefabricated plate 20 pavement, assembled airport pavement structure 100 utilizes the assembled technique to replace traditional cast-in-place technology, and convenient construction, the efficiency of construction is high. The prefabricated plate 20 comprises a main body portion 21 and a protruding portion 22 which are the same in thickness, the main body portion 21 and the protruding portion 22 are the same in length along the first direction, the protruding portion 22 is arranged on one side of the main body portion 21 in a protruding mode, and the single plate of the prefabricated plate 20 with the special-shaped structure is small in mass and convenient to hoist. In addition, the main body 21 of the prefabricated panels 20 is arranged towards the base 1 and forms a multi-column upright prefabricated panel group, the convex parts 22 of the prefabricated panels 20 are arranged towards the base 1 and forms a multi-column inverted prefabricated panel group, the inverted prefabricated panel group is embedded in a gap formed between two adjacent columns of upright prefabricated panel groups, the main body 21 of the prefabricated panel 20 arranged towards the base 1 by the convex parts 22 and the main body 21 of the prefabricated panel 20 arranged towards the base 1 by the main body 21 are overlapped and fixedly connected by a fastening piece, so that a plurality of prefabricated panels 20 facing different directions are assembled into a whole to form the surface layer 2 with the same thickness and smooth surface, and because no installation gap exists between the adjacent prefabricated panels 20, a plurality of processes such as secondary slurry filling, gap filling and surface plastering can be omitted, thereby further simplifying construction steps, improving construction efficiency and being beneficial to realizing rapid assembly of the surface layer 2, meanwhile, as the vertical end surface does not exist between the adjacent prefabricated plates 20, the waterproof performance of the surface layer 2 can be improved, and the ground water is prevented from invading the base layer 1. In addition, the fastening piece is used for replacing a connecting structure such as a dowel bar or a prestressed reinforcement, the structure of the prefabricated plate 20 can be further simplified, the installation precision is easy to control, the problem of stress concentration at the connecting part of the prefabricated plate 20 caused by impact load can be avoided, and the surface layer 2 is good in overall performance, not easy to damage and high in reliability.
In the fabricated airport pavement structure 100 provided by the present application, as shown in fig. 1, 3 and 4, the protruding portion 22 of the prefabricated panel 20 is bar-shaped and disposed at the middle of the main body portion 21 thereof, and the cross-section of the prefabricated panel 20 is T-shaped. The T-shaped prefabricated slabs 20 are regular in shape, the installation precision among the prefabricated slabs 20 is easy to control, and the construction is convenient. In addition, the T-shaped prefabricated plates 20 are of an axisymmetric structure and are uniformly stressed, the adjacent prefabricated plates 20 are firmly connected, and the force transferring effect between the plates is good. In other embodiments, the shape of the boss 22 is not limited thereto, for example, the boss 22 is Z-shaped, L-shaped, or the like.
Further, in the second direction (e.g., the direction indicated by Y in fig. 1), the width of the protruding portion 22 of the prefabricated panel 20 is 1/3 the width of the main body portion 21. The second direction is a horizontal direction perpendicular to the first direction.
It is understood that, in some embodiments, the protrusion 22 may also be disposed offset from the middle of the main body 21, such that the size of the main body 21 on one side of the protrusion 22 is larger than that of the main body 21 on the other side, which may be designed according to practical situations and is not limited herein.
In the fabricated airport pavement structure 100 provided by the present application, as shown in fig. 1, 2 and 3, the prefabricated panels 20 stacked one on another are staggered in the first direction by a preset distance D, which is half of the length L of the prefabricated panels 20 in the first direction. Specifically, the upright prefabricated panel group and the inverted prefabricated panel group are arranged in an extending manner along a first direction, 1/2 is distributed between the prefabricated panels 20 which are overlapped up and down, the prefabricated panel 20 on the upper layer is staggered forwards or backwards in the first direction relative to the prefabricated panel 20 on the lower layer by a preset distance D, the preset distance D is half of the length L of the prefabricated panel 20 in the first direction, and the main body part 21 of each prefabricated panel 20 can be respectively overlapped with the main body parts 21 of four prefabricated panels 20. By adopting the dislocation distribution structure, the connection effect of the plurality of prefabricated plates 20 is good, the overall performance of the surface layer 2 is good, and the plurality of prefabricated plates 20 are simple to position and convenient to construct.
It will be understood that in some embodiments, 1/3 may be arranged in a staggered manner between the prefabricated panels 20 arranged one above the other, that is, the prefabricated panel 20 on the upper layer is staggered forward or backward in the first direction by 1/3 of the panel length relative to the prefabricated panel 20 on the lower layer, which may be designed according to practical situations and is not limited herein.
In the fabricated airport pavement structure 100 provided by the present application, as shown in fig. 1, 3 and 4, a plurality of mounting holes 211 are provided on the main body portion 21 of the prefabricated slab 20, and the plurality of mounting holes 211 are distributed on opposite sides of the protrusion 22. The fastening member comprises a high-strength bolt which is arranged in the mounting hole 211 of the prefabricated panels 20 which are arranged in an overlapped mode in a penetrating mode. The high-strength bolt is simple in structure and convenient to install, and can be applied to various scenes and working conditions. In addition, the prefabricated panels 20 which are arranged in an overlapped mode and distributed in a staggered mode are connected through the high-strength bolts, so that the prefabricated panels 20 can be connected in the vertical direction and the horizontal direction, the high-strength bolts can bear relatively small horizontal load, the prefabricated panels 20 can resist relatively large vertical impact load, and the reliability of the surface layer 2 is improved.
Optionally, as shown in fig. 1, 3 and 4, the main body 21 of the prefabricated panel 20 is provided with four mounting holes 211, and the four mounting holes 211 are distributed at four corners of the main body 21 and are used for connecting four prefabricated panels 20 stacked on one prefabricated panel 20.
In the fabricated airport pavement structure 100 provided by the present application, as shown in fig. 1, 3 and 4, the mounting hole 211 includes a fixing portion 2111 and a connecting portion 2112 that are communicated with each other, the fixing portion 2111 is located on a side of the main body portion 21 away from the protruding portion 22, the aperture of the fixing portion 2111 is larger than that of the connecting portion 2112, and a stepped surface 2113 is formed near the opening. The fastener also comprises a nut matched with the high-strength bolt, the head of the high-strength bolt is arranged in the mounting hole 211 of the main body part 21 close to the precast slab 20 (namely, the lower precast slab 20) of the base layer 1 and abuts against the corresponding stepped surface 2113, the nut is arranged at the free end of the high-strength bolt, and the nut is arranged in the mounting hole 211 of the main body part 21 far away from the precast slab 20 (namely, the upper precast slab 20) of the base layer 1 and abuts against the corresponding stepped surface 2113. During construction, the high-strength bolts are firstly inserted into the mounting holes 211 of the lower prefabricated slab 20, then the upper prefabricated slab 20 is mounted at a preset position, the mounting holes 211 of the upper prefabricated slab 20 are aligned with the high-strength bolts, and then the nuts are mounted on the high-strength bolts. The high-strength bolt is reasonable in installation mode, convenient to construct and easy to maintain, and is beneficial to realizing the quick assembly of the surface layer 2. In addition, the high-strength bolts are matched with nuts to be used, so that the fine leveling effect is achieved, and the plurality of prefabricated plates 20 can be fixed to the same height by adjusting the connection between the high-strength bolts and the nuts, so that the surface of the surface layer 2 is kept flat, and the flatness of the surface layer 2 is improved.
Further, the length of the high-strength bolt is not more than twice the thickness of the main body part 21 of the precast slab 20, and the top elevation of the nut is flush with the top elevation of the surface layer 2. To ensure the nut installation effect, in some embodiments, the fastener further includes a backing plate.
In the fabricated airfield pavement structure 100 provided by the present application, the aperture of the connecting portion 2112 of the mounting hole 211 is larger than the diameter of the high-strength bolt. Specifically, in order to reduce the difficulty of assembling the prefabricated panels 20, when the installation holes 211 are designed, the installation holes 211 may be reamed according to the installation accuracy of the prefabricated panels 20.
In the fabricated airport pavement structure 100 according to the present application, concrete is poured into the fixing portion 2111 of the mounting hole 211 where the nut is located. Concrete is poured into the fixing portions 2111 of the mounting holes 211 to fill the mounting holes 211 of the upper precast slabs 20, so that the surface of the facing 2 is kept flat to ensure the flatness of the facing 2. In addition, the poured concrete can also improve the connecting and fixing effect of the fasteners, so that the connecting effect between the prefabricated plates 20 which are arranged in a stacked mode is improved. In addition, vertical pouring concrete, easy operation, the grout work load is few to the concrete is more closely knit under the action of gravity, and prefabricated plate 20 atress is better.
It is understood that in some embodiments, the prefabricated panels 20 stacked on each other may be connected by using steel bars, connecting nails or cast concrete, and may be designed according to practical situations, and is not limited herein.
In the fabricated airport pavement structure 100 provided by the present application, a waterproof layer is provided on the side of the main body portion 21 of the prefabricated slab 20 facing the convex portion 22. Through filling the waterproof layer, can improve the water-proof effects between the prefabricated plate 20 of upper and lower overlapping setting to further improve the waterproof ability of surface course 2, effectively avoid rainwater etc. ground water to invade basic unit 1.
Further, the waterproof layer is mortar or a leather mat.
Optionally, in an embodiment, the waterproof layer is mortar. The method is limited by the limitation of processing level, pits are easily formed on the surface of the finished prefabricated plate 20, mortar is coated on the surface of the prefabricated plate 20, the pits can be filled and leveled, and the surface flatness of the prefabricated plate 20 can be improved, so that the attaching flatness between prefabricated plates 20 which are arranged in an up-and-down overlapped mode can be improved, the prefabricated plates 20 which are arranged in an overlapped mode are tightly connected, the problem that the prefabricated plates 20 are mutually bitten is solved, and the waterproof effect of the prefabricated plates 20 is improved.
Optionally, in an embodiment, the waterproof layer is a leather pad. The leather pad can improve the flatness of the veneers between the prefabricated panels 20 which are arranged in an up-and-down overlapped mode, so that the prefabricated panels 20 which are arranged in an overlapped mode are tightly connected, and the leather pad has a certain seepage-proofing effect, and therefore the waterproof effect of the prefabricated panels 20 can be effectively improved.
In summary, the fabricated airport pavement structure 100 provided by the present application can reduce the mass of the single prefabricated panels 20 by improving the structure of the prefabricated panels 20 themselves, thereby facilitating the hoisting thereof. Furthermore, by improving the connection structure between the prefabricated panels 20 and connecting the prefabricated panels 20 which are arranged in an overlapped mode through high-strength bolts, multiple processes of secondary grout filling, seam filling, surface plastering and the like can be omitted, the construction difficulty of the road surface can be reduced, the construction steps are simplified, the construction efficiency is improved, and meanwhile the force transmission effect between the panels and the stability of the surface layer 2 can be improved. Further, by improving the installation manner between the prefabricated panels 20, the main bodies 21 of the upper and lower prefabricated panels 20 are stacked, and a waterproof layer such as mortar or leather pad is additionally provided between the horizontal contact surfaces of the upper and lower prefabricated panels 20, the waterproof capability of the surface layer 2 can be improved, and rainwater and other ground water can be effectively prevented from entering the base layer 1.
In a second aspect, as shown in fig. 1 and 5, the present application further provides a construction method of the fabricated airport pavement structure for laying the fabricated airport pavement structure 100.
As shown in fig. 1, 3 and 5, the construction method includes the steps of:
s100, laying a base layer 1.
Comprises the steps of treating a soil foundation 11, and sequentially paving a cushion layer 12 and a water stabilizing layer 13 on the soil foundation 11. The base layer 1 is paved by a paver, and the flatness and the compactness of the base layer 1 meet the design requirements.
S200, laying a plurality of columns of upright prefabricated plate groups on the base layer 1 to form a gap between two adjacent columns of upright prefabricated plate groups, wherein the main body parts 21 of the prefabricated plates 20 of the upright prefabricated plate groups are arranged towards the base layer 1.
Specifically, a field road is divided into a plurality of construction sections along a first direction, and a gantry crane is equipped for each construction section; then, the high-strength bolts are inserted into the mounting holes 211 of the prefabricated panels 20, the main body parts 21 of the prefabricated panels 20 are placed on the base layer 1 downwards by using a gantry crane, a plurality of rows of upright prefabricated panel groups extending along the first direction are formed on the base layer 1, and the plurality of rows of upright prefabricated panel groups are arranged in parallel and at intervals.
Wherein, the clearance formed between two adjacent upright prefabricated plate groupsThe size is adapted to the size of the prefabricated panel 20. In the embodiment of the application, the gap between the main body parts 21 of the prefabricated plates 20 of two adjacent columns of upright prefabricated plate groups is L 1 The dimension of the projection 22 of the prefabricated panel 20 in the second direction is L 2 The installation error of the prefabricated slab 20 is L 3 Definition of L 1 ＝L 2 +L 3 。
Furthermore, in order to conveniently adjust the size of the gap between two adjacent upright prefabricated plate groups and reduce the construction difficulty, the alignment device welded by the steel frame and used for fixing the interval is arranged on one side of one upright prefabricated plate group after being laid in the laying process, and after the size of the gap is determined, the adjacent upright prefabricated plate groups are sequentially laid.
S300, multiple columns of inverted prefabricated plate groups are laid on the base layer 1, the inverted prefabricated plate groups are embedded in gaps formed between two adjacent columns of upright prefabricated plate groups, prefabricated plates 20 of the upright prefabricated plate groups are distributed in a staggered mode with the prefabricated plates 20 of the inverted prefabricated plate groups, and protruding portions 22 of the prefabricated plates 20 of the inverted prefabricated plate groups are arranged towards the base layer 1.
Specifically, a plurality of prefabricated panels 20 are placed at predetermined positions on the base layer 1 with the protrusions 22 facing downward by using a gantry crane, so that the prefabricated panels 20 are embedded in gaps between the plurality of rows of upright prefabricated panels, and a plurality of rows of inverted prefabricated panels extending in the first direction are formed on the base layer 1.
In the laying process, the mounting holes 211 of the prefabricated panels 20 to be laid on the upper layer are aligned with the high-strength bolts on the prefabricated panels 20 already laid on the lower layer, and the prefabricated panels 20 arranged in an overlapped mode are distributed in a staggered mode. In the embodiment of the present application, the prefabricated panels 20 stacked one on top of the other have a staggered distribution of 1/2 prefabricated panel 20 lengths in the first direction, and the prefabricated panel 20 on the upper layer is staggered forward or backward in the first direction by a predetermined distance with respect to the prefabricated panel 20 on the lower layer, which is half the length of the prefabricated panel 20 in the first direction.
And S400, mounting fasteners to connect the prefabricated panels 20 which are arranged in an overlapped mode.
It should be noted that the fastener includes a high-strength bolt and a nut, and the installation of the fastener is to assemble the nut to the free end of the high-strength bolt.
The construction method of the assembled airport pavement structure comprises the steps of laying a base layer 1, laying upright prefabricated plate groups on the base layer 1, laying inverted prefabricated plate groups and installing fasteners on the base layer 1, wherein each upright prefabricated plate group and each inverted prefabricated plate group comprise a plurality of prefabricated plates 20 with different laying directions, each inverted prefabricated plate group is embedded in a gap between two adjacent upright prefabricated plate groups to form a surface layer 2 with the same thickness and smooth surface, the assembly technology is used for replacing the traditional cast-in-place technology, the fasteners are used for replacing an inter-plate force transmission rod connecting structure, multiple processes of secondary slurry filling, gap filling, surface plastering and the like are avoided, the construction difficulty can be reduced, the construction steps are simplified, the construction efficiency is improved, the rapid assembly of the surface layer 2 and the rapid laying of the assembled airport pavement structure 100 are facilitated, and the stable structure of the surface layer 2 can be laid, Assembled airport pavement structure 100 that water-proof effects is good.
In the construction method of the assembled airport pavement structure provided by the application, in order to improve the fastening effect of the fastening piece and improve the surface flatness of the surface layer 2, after the step S400, the construction method further comprises the following steps: concrete is poured into the installation holes 211 of the prefabricated panels 20 of the inverted prefabricated panel group.
Specifically, concrete is poured into the installation hole 211 of the prefabricated panel 20, which is disposed with the protrusion 22 facing the base layer 1, so that the concrete fills the fixing portion 2111 of the installation hole 211 and the surface of the prefabricated panel 20 is maintained flat.
In the construction method of the fabricated airport pavement structure provided by the present application, in order to improve the waterproof effect between the prefabricated panels 20 stacked one above the other and the waterproof capability of the surface layer 2, before step S300, the construction method further includes: the main body 21 of the prefabricated panel 20 is filled with a waterproof material on its surface facing the convex portion 22.
Specifically, a waterproof material is filled in the main body 21 of the prefabricated panel 20 such that the waterproof material fills the depressions in the surface of the prefabricated panel 20. Alternatively, the waterproof material may be mortar or a leather mat.
In conclusion, the construction method of the fabricated airport pavement structure provided by the application utilizes the fabricated technology to replace the traditional cast-in-place technology, has high construction efficiency and short construction period, and can lay the fabricated airport pavement structure 100 with a surface layer 2 which is stable in structure and good in waterproof effect.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. An assembled airport pavement structure comprises a base layer and a surface layer laid on the base layer, and is characterized in that the surface layer comprises a plurality of prefabricated plates and fasteners, each prefabricated plate comprises a main body part and a protruding part, the main body part and the protruding part are the same in thickness, the length of the main body part and the length of the protruding part in a first direction are the same, and the protruding part is protruded on one side of the main body part;
the main body parts of the prefabricated plates are arranged towards the base layer and form a plurality of columns of upright prefabricated plate groups, the upright prefabricated plate groups extend along a first direction, and a gap is formed between every two adjacent columns of upright prefabricated plate groups;
the protrusions of the plurality of prefabricated panels are arranged towards the base layer and form a plurality of columns of inverted prefabricated panel groups, the inverted prefabricated panel groups extend along a first direction, and the inverted prefabricated panel groups are embedded in the gaps formed by two adjacent columns of the upright prefabricated panel groups;
the prefabricated plates which are arranged in an overlapped mode are distributed in a staggered mode along a first direction, and the fastening pieces are connected with the main body parts of the prefabricated plates which are arranged in an overlapped mode.
2. The fabricated airport pavement structure of claim 1, wherein the protruding portion of the prefabricated panel is bar-shaped and disposed at a middle portion of the main body, and the prefabricated panel has a T-shaped cross-section.
3. The fabricated airport pavement structure of claim 1, wherein the prefabricated panels arranged one above another are staggered in a first direction by a preset distance that is half the length of the prefabricated panels in the first direction.
4. The fabricated airport pavement structure of any of claims 1-3, wherein the main body portion of the prefabricated slab is provided with a plurality of mounting holes, the plurality of mounting holes being distributed on opposite sides of the protrusion portion; the fastening piece comprises a high-strength bolt, and the high-strength bolt penetrates through the mounting holes of the prefabricated plates which are arranged in an overlapped mode.
5. The fabricated airport pavement structure of claim 4, wherein the mounting holes comprise a fastening portion and a connecting portion in communication, the fastening portion is located on a side of the main body portion facing away from the protruding portion, the fastening portion has a larger bore diameter than the connecting portion and forms a stepped surface at the location of the opening;
the fastener still include with the nut of high strength bolt adaptation, the head of high strength bolt set up in the main part is close to the basic unit in the mounting hole of prefabricated plate to support in corresponding on the ladder face, the nut install in the free end of high strength bolt, the nut set up in the main part is kept away from the basic unit in the mounting hole of prefabricated plate, and support in corresponding on the ladder face.
6. The fabricated airport pavement structure of claim 5, wherein the anchoring portion in which the nut is located is impregnated with concrete.
7. The fabricated airfield pavement structure of claim 5, wherein the connecting portion of the installation hole has a diameter larger than a diameter of the high-strength bolt.
8. The fabricated airport pavement structure of any of claims 1 to 3, wherein a side of the main body portion of the prefabricated slab facing the protrusion is provided with a waterproof layer.
9. The fabricated airport pavement structure of claim 8, wherein the waterproof layer is mortar or leather mat.
10. A construction method of a fabricated airport pavement structure for laying a fabricated airport pavement structure according to any one of claims 1 to 9, comprising:
laying a base layer;
laying a plurality of columns of upright prefabricated plate groups on the base layer to form a gap between two adjacent columns of upright prefabricated plate groups, wherein main body parts of prefabricated plates of the upright prefabricated plate groups are arranged towards the base layer;
laying a plurality of columns of inverted prefabricated plate groups on the base layer, embedding the inverted prefabricated plate groups in the gap formed by two adjacent columns of upright prefabricated plate groups, and distributing the prefabricated plates of the upright prefabricated plate groups and the prefabricated plates of the inverted prefabricated plate groups in a staggered manner, wherein the convex parts of the prefabricated plates of the inverted prefabricated plate groups face the base layer;
and installing a fastener, so that the fastener is connected with the prefabricated plates which are arranged in an overlapped mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210545545.5A CN114960334A (en) | 2022-05-19 | 2022-05-19 | Assembled airport pavement structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210545545.5A CN114960334A (en) | 2022-05-19 | 2022-05-19 | Assembled airport pavement structure and construction method thereof |
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| CN202210545545.5A Pending CN114960334A (en) | 2022-05-19 | 2022-05-19 | Assembled airport pavement structure and construction method thereof |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH436366A (en) * | 1962-05-26 | 1967-05-31 | Gaul Erwin | Road surface |
| RU7415U1 (en) * | 1996-09-18 | 1998-08-16 | Текникум Ой | DESIGN OF TRAFFIC DRIVING AT THE SAME LEVEL |
| JP2004036113A (en) * | 2002-07-01 | 2004-02-05 | Toyo Sekizai Kk | Natural paving stone and its paving structure |
| JP2005240332A (en) * | 2004-02-25 | 2005-09-08 | Daiei Densetsu Kk | Flat-type built-up block, end block and corner block |
| JP2007303215A (en) * | 2006-05-12 | 2007-11-22 | Fukushima Cb:Kk | Pavement block |
| CN205893845U (en) * | 2016-08-11 | 2017-01-18 | 北京城建七建设工程有限公司 | Precast concrete makes up road surface |
| CN207435837U (en) * | 2017-08-29 | 2018-06-01 | 成都建工工业化建筑有限公司 | Prefabricated assembled roadnet |
| KR20200010900A (en) * | 2018-07-23 | 2020-01-31 | 김영인 | Anti-weed block structure, and anti-weed block therefor |
| CN210561541U (en) * | 2019-06-28 | 2020-05-19 | 河北建设集团股份有限公司 | Prefabricated assembled municipal concrete pavement |
| CN211922137U (en) * | 2019-05-28 | 2020-11-13 | 江苏金贸科技发展有限公司 | Integrally-stressed prefabricated assembled panel |
| CN112726316A (en) * | 2021-01-01 | 2021-04-30 | 中建科技集团有限公司 | Assembly type precast concrete pavement slab assembly, pavement structure and construction method thereof |
-
2022
- 2022-05-19 CN CN202210545545.5A patent/CN114960334A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH436366A (en) * | 1962-05-26 | 1967-05-31 | Gaul Erwin | Road surface |
| RU7415U1 (en) * | 1996-09-18 | 1998-08-16 | Текникум Ой | DESIGN OF TRAFFIC DRIVING AT THE SAME LEVEL |
| JP2004036113A (en) * | 2002-07-01 | 2004-02-05 | Toyo Sekizai Kk | Natural paving stone and its paving structure |
| JP2005240332A (en) * | 2004-02-25 | 2005-09-08 | Daiei Densetsu Kk | Flat-type built-up block, end block and corner block |
| JP2007303215A (en) * | 2006-05-12 | 2007-11-22 | Fukushima Cb:Kk | Pavement block |
| CN205893845U (en) * | 2016-08-11 | 2017-01-18 | 北京城建七建设工程有限公司 | Precast concrete makes up road surface |
| CN207435837U (en) * | 2017-08-29 | 2018-06-01 | 成都建工工业化建筑有限公司 | Prefabricated assembled roadnet |
| KR20200010900A (en) * | 2018-07-23 | 2020-01-31 | 김영인 | Anti-weed block structure, and anti-weed block therefor |
| CN211922137U (en) * | 2019-05-28 | 2020-11-13 | 江苏金贸科技发展有限公司 | Integrally-stressed prefabricated assembled panel |
| CN210561541U (en) * | 2019-06-28 | 2020-05-19 | 河北建设集团股份有限公司 | Prefabricated assembled municipal concrete pavement |
| CN112726316A (en) * | 2021-01-01 | 2021-04-30 | 中建科技集团有限公司 | Assembly type precast concrete pavement slab assembly, pavement structure and construction method thereof |
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