CN113355966A - Precast concrete pavement panel connection structure based on ground anchor fixation and installation method - Google Patents
Precast concrete pavement panel connection structure based on ground anchor fixation and installation method Download PDFInfo
- Publication number
- CN113355966A CN113355966A CN202110763325.5A CN202110763325A CN113355966A CN 113355966 A CN113355966 A CN 113355966A CN 202110763325 A CN202110763325 A CN 202110763325A CN 113355966 A CN113355966 A CN 113355966A
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- China
- Prior art keywords
- precast concrete
- concrete pavement
- pavement slab
- hoisting
- slab
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Classifications
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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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
Abstract
The invention discloses a precast concrete pavement panel connecting structure and a precast concrete pavement panel mounting method based on ground anchor fixation. The invention has the beneficial effects that: through fixed independent unit, guarantee independent unit's stability, can guarantee the stability of whole pavement, realize the multiple spot simultaneous construction, the influence each other is little, and construction speed is fast. The precast concrete pavement panel based on ground anchor fixation has the advantages of simple connection structure, good transfer shear resistance of the concave-convex tongue-and-groove and single plate type, and is beneficial to industrial production and field assembly. The precast concrete pavement panel assembly is processed and finished in a factory, is transported to a site to be hoisted and installed, has high industrialization degree, convenient site installation and high construction speed, and is suitable for the rapid assembling construction of airport pavement.
Description
Technical Field
The invention relates to a precast concrete pavement slab, in particular to a precast concrete pavement slab connection structure and an installation method based on ground anchor fixation, and belongs to the technical field of airport pavement construction.
Background
The assembly type construction technology has the characteristics of high industrialization degree, environmental protection, high construction speed and the like, and is rapidly developed and widely applied in the fields of house construction, railways and the like. By using the assembly mature technology and construction experience in the field of building construction for reference, the field road panel can also realize the assembly construction process.
At present, the airport pavement in China generally adopts a cast-in-place concrete construction technology, the wet operation is more, the concrete curing period is long, the pavement slab construction process is complex, and the concrete matching ratio and the construction quality requirements of surface slurry lifting, grooving, napping and the like are extremely high. The traditional cast-in-place concrete construction technology has long integral construction period, the quality is difficult to ensure, the capability of quickly constructing the airport runway under the condition of not meeting special requirements, and a production technology and a method which are more advanced than the traditional cast-in-place concrete technology must be researched and developed, so that the construction technical level of the airport runway surface is improved, and the purpose of quickly assembling is achieved.
Disclosure of Invention
The invention aims to solve the problems and provides a precast concrete pavement panel connection structure and an installation method based on ground anchor fixing.
The invention realizes the purpose through the following technical scheme: the precast concrete pavement slab connection structure based on ground anchor fixing comprises a precast concrete pavement slab, convex tongue-and-groove joints, concave tongue-and-groove joints, hoisting mounting holes and ground anchors; the four sides of the precast concrete pavement slab are provided with convex tongues and grooves, and the surface of the precast concrete pavement slab is provided with four hoisting mounting holes; the precast concrete pavement slab is fixedly connected with the ground anchor rod in a socket joint mode through a convex rabbet and a concave rabbet; the precast concrete pavement slab is precast by adopting a light inorganic material.
As a still further scheme of the invention: the precast concrete pavement slab is prefabricated in a factory, the convex rabbet, the concave rabbet and the hoisting mounting hole are reserved in advance in the pavement slab prefabricating process, and the hoisting mounting hole is arranged by adopting a pre-embedded sleeve and is integrated with three holes, namely the hoisting hole, the mounting hole and the grouting hole.
As a still further scheme of the invention: the precast concrete pavement panels are sequentially spliced according to the principle that the convex rabbet is inserted into the concave rabbet, then the precast concrete pavement panels are driven into the ground anchor rod through the hoisting mounting hole to be fixedly connected with the lower base layer in an anchoring mode, the ground anchor rod penetrates through the lower base layer to be driven into a soil layer with a certain depth, and the hoisting mounting hole is timely sealed through a locking bolt after the precast concrete pavement panels are mounted.
As a still further scheme of the invention: the precast concrete pavement slab is made of light inorganic materials, and light aggregate concrete or other fiber reinforced concrete and other materials can be selected.
As a still further scheme of the invention: asphalt is coated between the groove and tongue seams of the precast concrete pavement slabs, and the slab seam upper openings are treated by gluing.
As a still further scheme of the invention: before the ground anchor rod is driven into, the gap between the precast concrete pavement slab and the lower base layer can be filled compactly by hoisting the mounting hole for grouting.
As a still further scheme of the invention: and a gap between the precast concrete pavement slab and the lower base layer is filled with grouting material.
The installation method of the precast concrete pavement panel connection structure based on ground anchor fixation comprises the following steps:
1) the construction of the airport field road base layer is completed, and the airport is guaranteed to have certain strength, rigidity and flatness so as to meet the splicing construction requirement of the precast concrete pavement slab of the subsequent road;
2) positioning and paying off a base layer, respectively determining positioning lines on each operation surface according to the overall division condition of the working surface, and putting a control line at a certain distance to prevent the plate from having overlarge accumulated error;
3) hoisting the precast concrete pavement slab, accurately placing the prepared component slab at a positioning position through hoisting equipment, and sequentially laying the subsequent slabs according to the socket splicing sequence from the convex rabbet to the concave rabbet;
4) pre-drilling a base layer, namely pre-drilling holes by using drilling equipment through hoisting mounting holes after the precast concrete pavement slab is accurately placed, wherein the drilling depth needs to reach a certain depth of the lower base layer and the soil layer and meets the design depth requirement;
5) grouting, namely grouting the bottom of the precast concrete pavement slab through the hoisting mounting hole by grouting equipment, wherein grouting materials are filled in the pre-drilled hole;
6) and (3) driving the ground anchor rod into the pre-drilled hole along the hoisting mounting hole before the grouting material reaches initial setting, and finally screwing and fixing the locking bolt and the pre-embedded sleeve.
The invention has the beneficial effects that: the precast concrete pavement slab connection structure based on ground anchor fixing and the installation method are reasonable in design, the stability of the independent units is guaranteed through fixing the independent units, the stability of the whole pavement can be guaranteed, multi-point simultaneous construction is achieved, mutual influence is small, and the construction speed is high. The precast concrete pavement panel based on ground anchor fixation has the advantages of simple connection structure, good transfer shear resistance of the concave-convex tongue-and-groove and single plate type, and is beneficial to industrial production and field assembly. The precast concrete pavement panel assembly is processed and finished in a factory, is transported to a site to be hoisted and installed, has high industrialization degree, convenient site installation and high construction speed, and is suitable for the rapid assembling construction of airport pavement.
Drawings
FIG. 1 is a schematic view showing a structure of a precast concrete pavement slab according to the present invention;
FIG. 2 is a schematic sectional view of a precast concrete pavement slab node according to the present invention.
In the figure: 1. the concrete pavement slab comprises a precast concrete pavement slab, 2 convex tongue-and-groove parts, 3 concave tongue-and-groove parts, 4 hoisting mounting holes, 5 ground anchor rods, 6 embedded sleeves, 7 locking bolts, 8 grouting materials, 9 lower base layers, 10 soil layers.
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.
Example one
Referring to fig. 1-2, the precast concrete pavement slab connection structure based on ground anchor fixing comprises a precast concrete pavement slab 1, a convex rabbet 2, a concave rabbet 3, a hoisting installation hole 4 and a ground anchor rod 5; the four sides of the precast concrete pavement slab 1 are provided with convex tongues and grooves 2 and concave tongues and grooves 3, and the surface of the precast concrete pavement slab 1 is provided with four hoisting mounting holes 4; the precast concrete pavement slab 1 is fixedly connected with a ground anchor rod 5 in a socket-and-spigot manner by adopting a convex rabbet 2 and a concave rabbet 3; the precast concrete pavement slab 1 is precast by adopting a light inorganic material.
In the embodiment of the invention, the precast concrete pavement slab 1 is prefabricated in a factory, the convex rabbet 2, the concave rabbet 3 and the hoisting mounting hole 4 are reserved in advance in the pavement slab prefabricating process, and the hoisting mounting hole 4 is arranged by adopting the embedded sleeve 6 and integrates three holes, namely a hoisting hole, a mounting hole and a grouting hole.
In the embodiment of the invention, the precast concrete pavement slabs 1 are sequentially spliced according to the principle that the convex rabbet 2 is inserted into the concave rabbet 3, then are driven into a ground anchor rod 5 through a hoisting mounting hole 4 to be fixedly connected with a lower base layer 9 in an anchoring manner, the ground anchor rod 5 is driven into a soil layer 10 with a certain depth through the lower base layer 9, and the hoisting mounting hole 4 is timely sealed by a locking bolt 7 after the installation is finished.
In the embodiment of the present invention, the light inorganic material adopted by the precast concrete pavement slab 1 may be light aggregate concrete or other fiber reinforced concrete.
In the embodiment of the invention, asphalt is coated between the tongue-and-groove joints of the precast concrete pavement slab 1, and the upper openings of the slab joints are treated by gluing to play a waterproof role.
In the embodiment of the invention, before the ground anchor rod 5 is driven into the ground, the gap between the precast concrete pavement slab 1 and the lower base layer 9 can be filled compactly by grouting through the hoisting installation hole 4.
In the embodiment of the present invention, a gap between the precast concrete pavement slab 1 and the lower base layer 9 is filled with a grouting material 8.
Example two
The installation method of the precast concrete pavement panel connection structure based on ground anchor fixation comprises the following steps:
1) the construction of the airport field road base layer is completed, and the airport is guaranteed to have certain strength, rigidity and flatness so as to meet the splicing construction requirement of the precast concrete pavement slab 1 of the subsequent road;
2) positioning and paying off a base layer, respectively determining positioning lines on each operation surface according to the overall division condition of the working surface, and putting a control line at a certain distance to prevent the plate from having overlarge accumulated error;
3) hoisting the precast concrete pavement slab 1, accurately placing the prepared component slab at a positioning position through hoisting equipment, and sequentially laying subsequent slabs according to the socket splicing sequence of the convex rabbet 2 to the concave rabbet 3;
4) pre-drilling a base layer, namely pre-drilling holes through a hoisting mounting hole 4 by using drilling equipment after the precast concrete pavement slab 1 is accurately placed, wherein the drilling depth is required to reach a certain depth of a lower base layer 9 and a soil layer 10 and meet the design depth requirement;
5) grouting, namely grouting the bottom of the precast concrete pavement slab 1 through the hoisting mounting hole 4 by grouting equipment, wherein grouting materials are filled in the pre-drilled hole;
6) and (3) driving a ground anchor rod 5 into the pre-drilled hole along the hoisting mounting hole 4 before the grouting material reaches initial setting, and finally screwing and fixing the locking bolt 7 and the pre-embedded sleeve 6.
The working principle is as follows: four edges of the precast concrete pavement slab 1 are provided with concave-convex tongues and grooves, the embedded sleeve 6 in the slab is provided with four hoisting mounting holes 4, and the hoisting holes, the mounting holes and the grouting holes are integrated into a whole; the precast concrete pavement slab 1 is fixedly connected with the ground anchor rod 5 in a concave-convex tongue-and-groove socket connection manner; asphalt is coated between the tongue-and-groove joints of the precast concrete pavement slab 1, and the upper openings of the slab joints are treated by gluing to play a role in water resistance; before the ground anchor rod 5 is driven into, the gap between the precast concrete pavement slab 1 and the lower base layer 9 can be filled compactly by hoisting and installing hole grouting.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. Precast concrete pavement panel connection structure based on earth anchor is fixed, its characterized in that: the prefabricated concrete slab comprises a prefabricated concrete pavement slab (1), a convex rabbet (2), a concave rabbet (3), a hoisting mounting hole (4) and a ground anchor rod (5); convex tongue-and-groove joints (2) and concave tongue-and-groove joints (3) are arranged on four sides of the precast concrete pavement slab (1), and four hoisting mounting holes (4) are arranged on the slab surface of the precast concrete pavement slab (1); the precast concrete pavement slab (1) is fixedly connected with a ground anchor rod (5) in a socket joint mode through a convex rabbet (2) and a concave rabbet (3), and the precast concrete pavement slab (1) is precast through light inorganic materials.
2. The precast concrete pavement slab connection construction based on earth anchor fixing according to claim 1, wherein: precast concrete pavement slab (1) adopts the prefabricated preparation of batch production, and protruding rabbet (2), concave rabbet (3) and hoist and mount mounting hole (4) are all reserved in advance at the pavement slab prefabrication in-process, and hoist and mount mounting hole (4) adopt pre-buried sleeve (6) to set up, for three hole unifications in hoisting hole, mounting hole and slip casting hole.
3. The precast concrete pavement slab connection construction based on earth anchor fixing according to claim 1 or 2, wherein: the precast concrete pavement slab (1) is sequentially spliced according to the principle that the convex rabbet (2) is inserted into the concave rabbet (3), then the precast concrete pavement slab is driven into a ground anchor rod (5) through the hoisting mounting hole (4) to be fixedly connected with the lower base layer (9) in an anchoring manner, the ground anchor rod (5) penetrates through the lower base layer (9) to be driven into a soil layer (10) with a certain depth, and the hoisting mounting hole (4) is timely sealed by a locking bolt (7) after the precast concrete pavement slab is installed.
4. The precast concrete pavement slab connection construction based on earth anchor fixing according to claim 1, wherein: the precast concrete pavement slab (1) is made of light inorganic materials, and light aggregate concrete or other fiber reinforced concrete materials can be selected.
5. The precast concrete pavement slab connection construction based on earth anchor fixing according to claim 3, wherein: asphalt is coated between the tongue-and-groove joints of the precast concrete pavement slab (1), and the upper openings of the slab joints are treated by gluing to play a waterproof role.
6. The precast concrete pavement slab connection construction based on earth anchor fixing according to claim 5, wherein: before the ground anchor rod (5) is driven into, the gap between the precast concrete pavement slab (1) and the lower base layer (9) can be densely filled through grouting of the hoisting mounting hole (4).
7. The precast concrete pavement slab connection construction based on earth anchor fixing according to claim 1, wherein: and a gap between the precast concrete pavement slab (1) and the lower base layer (9) is filled with grouting material (8).
8. An installation method of the precast concrete pavement slab connection construction based on earth anchor fixing according to claim 1, comprising the steps of:
1) the construction of the airport field road base layer is completed, and the airport is guaranteed to have certain strength, rigidity and flatness so as to meet the splicing construction requirement of the precast concrete pavement slab (1) of the subsequent road;
2) positioning and paying off a base layer, respectively determining positioning lines on each operation surface according to the overall division condition of the working surface, and putting a control line at a certain distance to prevent the plate from having overlarge accumulated error;
3) hoisting the precast concrete pavement slab (1), accurately placing a prepared component plate at a positioning position through hoisting equipment, and sequentially laying subsequent plates according to the socket splicing sequence of the convex rabbet (2) to the concave rabbet (3);
4) pre-drilling a base layer, namely pre-drilling a hole through a hoisting mounting hole (4) by using drilling equipment after the precast concrete pavement slab (1) is accurately placed, wherein the drilling depth is up to a certain depth of the lower base layer (9) and the soil layer (10) and meets the design depth requirement;
5) grouting, namely grouting the bottom of the precast concrete pavement slab (1) by grouting equipment through the hoisting mounting hole (4), wherein grouting materials are filled in the pre-drilled hole;
6) and (3) driving the ground anchor rod (5) into the pre-drilled hole along the hoisting mounting hole (4) before the grouting material reaches initial setting, and finally screwing and fixing the locking bolt (7) and the embedded sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110763325.5A CN113355966A (en) | 2021-07-06 | 2021-07-06 | Precast concrete pavement panel connection structure based on ground anchor fixation and installation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110763325.5A CN113355966A (en) | 2021-07-06 | 2021-07-06 | Precast concrete pavement panel connection structure based on ground anchor fixation and installation method |
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| CN113355966A true CN113355966A (en) | 2021-09-07 |
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| CN202110763325.5A Pending CN113355966A (en) | 2021-07-06 | 2021-07-06 | Precast concrete pavement panel connection structure based on ground anchor fixation and installation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113981769A (en) * | 2021-12-10 | 2022-01-28 | 四川宏华石油设备有限公司 | Metal prefabricated pavement panel structure and prefabricated pavement |
| CN114908626A (en) * | 2022-05-06 | 2022-08-16 | 交通运输部公路科学研究所 | Vertical connecting device between assembled runway concrete pavement slab layers of newly-built airport |
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| US20150167260A1 (en) * | 2013-12-13 | 2015-06-18 | Baltazar Siqueiros | Method and apparatus for lifting and securing a concrete panel in place above a road bed |
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| CN113981769A (en) * | 2021-12-10 | 2022-01-28 | 四川宏华石油设备有限公司 | Metal prefabricated pavement panel structure and prefabricated pavement |
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| CN114908626A (en) * | 2022-05-06 | 2022-08-16 | 交通运输部公路科学研究所 | Vertical connecting device between assembled runway concrete pavement slab layers of newly-built airport |
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