CN112176814A - Water accumulation preventing plateau asphalt highway and construction method - Google Patents

Water accumulation preventing plateau asphalt highway and construction method Download PDF

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Publication number
CN112176814A
CN112176814A CN202011082946.9A CN202011082946A CN112176814A CN 112176814 A CN112176814 A CN 112176814A CN 202011082946 A CN202011082946 A CN 202011082946A CN 112176814 A CN112176814 A CN 112176814A
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China
Prior art keywords
layer
heat
cover body
permeable
foundation
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Application number
CN202011082946.9A
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Chinese (zh)
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CN112176814B (en
Inventor
田荣燕
孙威宇
魏新晨
旺久
娄超华
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Tibet University
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Tibet University
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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00Coherent pavings made in situ
    • E01C7/08Coherent pavings made in situ made of road-metal and binders
    • E01C7/18Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00Details of pavings
    • E01C11/22Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
    • E01C11/224Surface drainage of streets
    • E01C11/225Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
    • E01C11/226Coherent pavings
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00Details of pavings
    • E01C11/24Methods or arrangements for preventing slipperiness or protecting against influences of the weather
    • E01C11/26Permanently installed heating or blowing devices ; Mounting thereof
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C3/00Foundations for pavings
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C3/00Foundations for pavings
    • E01C3/04Foundations produced by soil stabilisation
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C3/00Foundations for pavings
    • E01C3/06Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration

Abstract

The invention discloses a water accumulation preventing plateau asphalt road and a construction method, comprising an asphalt pavement layer, a foundation, a cushion layer arranged on the surface of the foundation and a reinforcing component arranged on the lower surface of the foundation; a permeable layer is arranged below the asphalt pavement layer, a permeable hole is formed in the asphalt pavement layer and communicated with the permeable layer, a heat conduction cover body is arranged below the permeable layer, a heat release cavity is formed between the heat conduction cover body and the cushion layer, a heat release mechanism is arranged in the heat release cavity, and a heat insulation layer is filled between the heat conduction cover body and the permeable layer; the lower part of the permeable layer is connected with water seepage bent pipes which are sequentially arranged along the permeable layer, and the end parts of the water seepage bent pipes extend to the outside of the side of the cushion layer; through the multilayer structure setting to bituminous paving, form and have the structural feature of preventing ponding, preventing frostbite and expanding and stabilize the reinforcement, improve the stability ability on road surface, avoid the damage that ponding caused the highway in road surface, avoid frostbite simultaneously to expand the damage of highway structure and reduce the potential safety hazard that the icy road caused in winter.

Description

Water accumulation preventing plateau asphalt highway and construction method
Technical Field
The invention relates to the technical field of road engineering, in particular to a water accumulation preventing plateau asphalt highway and a construction method.
Background
The highway construction difficulty in the plateau area is high due to the fact that the natural environment of the plateau area is severe, the air temperature is low, the air speed is high, the climate is variable, the surface temperature is low, the distance is long and the like, and the highway construction difficulty in the plateau area is high due to the fact that the special severe natural environment of the plateau area is similar to that of the area of the Qinghai-Tibet plateau globally, and the highway construction faces unprecedented challenges based on high cold, oxygen deficiency, ecological fragility and severe climate conditions.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a water accumulation preventing plateau asphalt road and a construction method.
The technical scheme for solving the technical problems is as follows: the water accumulation preventing plateau asphalt road comprises an asphalt road surface layer, a foundation, a cushion layer arranged on the surface of the foundation and a reinforcing component arranged on the lower surface of the foundation;
a permeable layer is arranged below the asphalt pavement layer, a permeable hole is formed in the asphalt pavement layer and communicated with the permeable layer, a heat conduction cover body is arranged below the permeable layer, a heat release cavity is formed between the heat conduction cover body and the cushion layer, a heat release mechanism is arranged in the heat release cavity, and a heat insulation layer is filled between the heat conduction cover body and the permeable layer; the infiltration return bend is connected with the infiltration return bend below the infiltration layer, and the infiltration return bend is arranged along the infiltration layer in proper order, and the tip of infiltration return bend extends to the side outside of bed course.
Further, the reinforcing component comprises a beam body arranged on the lower surface of the cushion layer, and a side pile group and a middle pile group which are respectively connected below the beam body, wherein the side pile group is positioned on two sides of the beam body, the middle pile group is positioned in the middle of the beam body, and the bottom end of the heat conduction cover body is rigidly connected with the upper surface of the beam body.
Further, the side pile group comprises a plurality of side piles arranged at intervals, the middle pile group comprises a plurality of middle piles arranged at intervals, and the distance between adjacent side piles is greater than the distance between adjacent middle piles.
Further, the heat release mechanism comprises a double-layer heat release pipe arranged in the heat conduction cover body.
Furthermore, the pile bottom of the middle pile and the pile bottom of the side piles are embedded into the bearing layer of the foundation or arranged on the surface of the bearing layer.
The invention also provides a construction method of the water accumulation preventing plateau asphalt highway, which comprises the following steps:
step 1: tamping the foundation, driving the pile bottoms of the side piles and the middle pile into a bearing layer of the foundation, and fixedly arranging the beam body on the pile tops of the side piles and the middle pile;
step 2: installing a heat conducting cover body on the upper surface of the beam body, and installing a heat releasing mechanism in the heat conducting cover body;
and step 3: laying a cushion layer on the foundation, compacting and leveling the cushion layer to enable the cushion layer to cover the root parts of the beam body and the heat conduction cover body;
and 4, step 4: embedding a permeation bent pipe, so that the lower end of the permeation bent pipe extends to the outside of the side of the cushion layer, and the upper end of the permeation bent pipe is positioned above the heat conduction cover body;
and 5: laying an insulating layer and tamping and leveling the insulating layer so that the insulating layer is filled and covers the outside of the heat conduction cover body;
step 6: laying a permeable layer and tamping and leveling the permeable layer so that the permeable layer covers the upper part of the heat insulation layer;
and 7: and paving an asphalt pavement layer above the permeable layer, tamping and leveling the asphalt pavement layer, and drilling uniform permeable holes on the asphalt pavement layer.
Further, the paving thickness of the cushion layer in the step 3 is 30cm-40 cm.
Further, the paving thickness of the permeation layer in the step 6 is 20cm-30 cm.
The invention has the following beneficial effects: the water accumulation preventing plateau asphalt road and the construction method thereof provided by the invention have the advantages that the structure of the road surface is reliable, the construction is convenient and fast, the multilayer structure of the asphalt road surface is arranged, the structural characteristics of water accumulation prevention, frost heaving prevention and stable reinforcement are formed, the stability of the road surface is improved, the damage of the road surface water accumulation to the road is avoided, meanwhile, the damage of frost heaving to the road structure is avoided, and the potential safety hazard caused by the freezing of the road surface in winter is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
the reference numerals shown in fig. 1 are respectively denoted as: the method comprises the following steps of 1-asphalt pavement layer, 2-foundation, 3-cushion layer, 4-reinforcing component, 5-permeable layer, 6-heat conduction cover body, 7-heat release cavity, 8-heat release mechanism, 9-heat preservation layer, 10-water seepage bent pipe, 40-beam body, 41-side pile group, 42-middle pile group, 410-side pile, 420-middle pile and 11-bearing layer.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, the water accumulation preventing plateau asphalt road comprises an asphalt pavement layer 1, a foundation 2, a cushion layer 3 arranged on the surface of the foundation 2 and a reinforcing component 4 arranged on the lower surface of the foundation 2. A permeable layer 5 is arranged below the asphalt pavement layer 1, a permeable hole is formed in the asphalt pavement layer 1, the permeable hole is communicated with the permeable layer 5, a heat-conducting cover body 6 is arranged below the permeable layer 5, a heat release cavity 7 is arranged between the heat-conducting cover body 6 and the cushion layer 3, a heat release mechanism 8 is arranged in the heat release cavity 7, and a heat insulation layer 9 is filled between the heat-conducting cover body 6 and the permeable layer 5; the lower part of the permeable layer 5 is connected with a water seepage elbow 10, the water seepage elbows 10 are sequentially arranged along the permeable layer 5, and the end part of the water seepage elbow 10 extends to the outside of the side of the cushion layer 3.
This road surface structure is reliable, and the construction is convenient quick, forms the infiltration structure of surface ponding through permeable formation 5, infiltration hole, guarantees the infiltration of ponding on the road surface, avoids ponding long-time the damage to the road surface of being detained. The heat release mechanism comprises a double-layer heat release pipe arranged in the heat conduction cover body 6, and the heat release structure is arranged in the heat conduction cover body and the heat insulation layer 9 to form a heat release structure inside the road, so that the expansion damage to the road surface caused by frost heaving and the potential safety hazard caused by the freezing of the road surface in winter are avoided. The overall structural stability of the road surface is improved through the reinforcing component 4, and the service life of the road is prolonged.
The reinforcing component 4 comprises a beam body 40 arranged on the lower surface of the cushion layer 3, and a side pile group 41 and a middle pile group 42 which are respectively connected below the beam body 40, wherein the side pile group 41 is positioned on two sides of the beam body 40, the middle pile group 42 is positioned in the middle of the beam body 40, and the bottom end of the heat-conducting cover body 6 is rigidly connected with the upper surface of the beam body 40. The side pile group 41 comprises a plurality of spaced side piles 410, the middle pile group 42 comprises a plurality of spaced middle piles 420, and the distance between adjacent side piles 410 is greater than the distance between adjacent middle piles 420. The side piles 410 and the middle piles 420 are concrete piles, and form a reinforced structure with the beam body 40, so that high bending bearing capacity is provided, and bending damage of the pile body is greatly avoided.
The bottom of the middle pile 420 and the bottom of the side pile 410 are embedded in the bearing layer 11 of the foundation 2 or are arranged on the surface of the bearing layer 11. The stability of the whole structure is improved.
The invention also provides a construction method of the water accumulation preventing plateau asphalt highway, which comprises the following steps:
step 1: tamping the foundation 2, driving the pile bottoms of the side piles 410 and the middle piles 420 into the bearing stratum 11 of the foundation 2, and fixedly arranging the beam body 40 on the pile tops of the side piles 410 and the middle piles 420;
step 2: installing a heat conducting cover body on the upper surface of the beam body 40, and installing a heat releasing mechanism 8 in the heat conducting cover body;
and step 3: laying a cushion layer 3 on a foundation 2, tamping and leveling the cushion layer 3 to ensure that the cushion layer 3 covers the beam body 40 and the root part of the heat-conducting cover body; the laying thickness of the cushion layer 3 is 30cm-40 cm.
And 4, step 4: embedding a permeation bent pipe, so that the lower end of the permeation bent pipe extends to the outside of the side of the cushion layer 3, and the upper end of the permeation bent pipe is positioned above the heat conduction cover body;
and 5: laying an insulating layer 9 and tamping and leveling the insulating layer 9 so that the insulating layer 9 is filled and covers the outside of the heat conduction cover body;
step 6: paving a permeable layer 5 and tamping and leveling the permeable layer 5 so that the permeable layer 5 covers the upper part of the heat insulation layer 9; the thickness of the layer 5 is 20-30 cm.
And 7: paving the asphalt pavement layer 1 above the permeable layer 5, tamping and leveling the asphalt pavement layer, and drilling uniform permeable holes on the asphalt pavement layer 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (8)

1. The water accumulation preventing plateau asphalt road is characterized by comprising an asphalt pavement layer (1), a foundation (2), a cushion layer (3) arranged on the surface of the foundation (2) and a reinforcing component (4) arranged on the lower surface of the foundation (2);
a permeable layer (5) is arranged below the asphalt pavement layer (1), a permeable hole is formed in the asphalt pavement layer (1), the permeable hole is communicated with the permeable layer (5), a heat conduction cover body (6) is arranged below the permeable layer (5), a heat release cavity (7) is arranged between the heat conduction cover body (6) and the cushion layer (3), a heat release mechanism (8) is arranged in the heat release cavity (7), and a heat insulation layer (9) is filled between the heat conduction cover body (6) and the permeable layer (5); infiltration return bend (10) are connected with to infiltration layer (5) below, infiltration return bend (10) are followed infiltration layer (5) are arranged in proper order, just the tip of infiltration return bend (10) extends to the side outside of bed course (3).
2. The water accumulation preventing plateau asphalt road according to claim 1, wherein the reinforcement assembly (4) comprises a beam body (40) disposed on the lower surface of the bedding (3), and a side pile group (41) and a middle pile group (42) respectively connected below the beam body (40), and the side pile group (41) is located on both sides of the beam body (40), the middle pile group (42) is located in the middle of the beam body (40), and the bottom end of the heat conducting cover body (6) is rigidly connected with the upper surface of the beam body (40).
3. The high altitude asphalt road for preventing water accumulation as claimed in claim 2, wherein the side pile group (41) comprises a plurality of side piles (410) arranged at intervals, the middle pile group (42) comprises a plurality of middle piles (420) arranged at intervals, and the distance between the adjacent side piles (410) is greater than the distance between the adjacent middle piles (420).
4. The water accumulation preventing plateau asphalt road according to any one of claims 1 to 3, wherein the heat releasing mechanism comprises a double-layer heat releasing pipe provided in the heat conductive cover body (6).
5. The waterlogging-preventing plateau asphalt road as claimed in claim 3, wherein the bottom of the middle pile (420) and the bottom of the side pile (410) are embedded in the bearing layer (11) of the foundation (2) or are placed on the surface of the bearing layer (11).
6. The construction method of the water accumulation preventing plateau asphalt highway is characterized by comprising the following steps of:
the method comprises the following steps: tamping the foundation (2), driving the pile bottoms of the side piles (410) and the middle piles (420) into the bearing layer (11) of the foundation (2), and fixedly arranging the beam body (40) on the pile tops of the side piles (410) and the middle piles (420);
step two: installing a heat conduction cover body on the upper surface of the beam body (40), and installing a heat release mechanism (8) in the heat conduction cover body;
step three: paving a cushion layer (3) on the foundation (2), tamping and leveling the cushion layer, so that the cushion layer (3) covers the beam body (40) and the root part of the heat-conducting cover body;
step IV: embedding a permeation bent pipe, so that the lower end of the permeation bent pipe extends to the outside of the side of the cushion layer (3), and the upper end of the permeation bent pipe is positioned above the heat conduction cover body;
step five: laying an insulating layer (9) and tamping and leveling the insulating layer to ensure that the insulating layer (9) is filled and covers the outside of the heat conduction cover body;
step (c): laying a permeable layer (5) and tamping and leveling the permeable layer (5) so that the permeable layer (5) covers the upper part of the heat-insulating layer (9);
step (c): paving the asphalt pavement layer (1) above the permeable layer (5), tamping and leveling the asphalt pavement layer, and drilling uniform permeable holes on the asphalt pavement layer (1).
7. The construction method of the water accumulation preventing plateau asphalt road according to claim 6, wherein the paving thickness of the cushion layer (3) in the step three is 30cm-40 cm.
8. The construction method of the anti-flooding plateau asphalt road as claimed in claim 6, wherein the paving thickness of the middle permeable layer (5) is 20cm-30 cm.
CN202011082946.9A 2020-10-12 2020-10-12 Construction method of water accumulation preventing plateau asphalt highway Active CN112176814B (en)

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Application Number Priority Date Filing Date Title
CN202011082946.9A CN112176814B (en) 2020-10-12 2020-10-12 Construction method of water accumulation preventing plateau asphalt highway

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Application Number Priority Date Filing Date Title
CN202011082946.9A CN112176814B (en) 2020-10-12 2020-10-12 Construction method of water accumulation preventing plateau asphalt highway

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CN112176814B CN112176814B (en) 2022-06-17

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