CN113622249A - Washboard type cement concrete pavement and construction method - Google Patents
Washboard type cement concrete pavement and construction method Download PDFInfo
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- CN113622249A CN113622249A CN202110875644.5A CN202110875644A CN113622249A CN 113622249 A CN113622249 A CN 113622249A CN 202110875644 A CN202110875644 A CN 202110875644A CN 113622249 A CN113622249 A CN 113622249A
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- 238000010276 construction Methods 0.000 title claims abstract description 28
- 241000510097 Megalonaias nervosa Species 0.000 title claims abstract description 26
- 239000004568 cement Substances 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 172
- 239000010959 steel Substances 0.000 claims description 172
- 238000000034 method Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 12
- 239000011083 cement mortar Substances 0.000 claims description 10
- 238000005553 drilling Methods 0.000 claims description 9
- 238000004080 punching Methods 0.000 claims description 7
- 230000036541 health Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910000746 Structural steel Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004746 geotextile Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- E01C9/001—Paving elements formed in situ; Permanent shutterings therefor ; Inlays or reinforcements which divide the cast material in a great number of individual 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
- E01C11/00—Details of 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
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
- E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
- E01C11/06—Methods of making joints
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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
- E01C11/00—Details of pavings
- E01C11/16—Reinforcements
- E01C11/18—Reinforcements for cement concrete 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
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The disclosure relates to the technical field of construction engineering, in particular to a washboard type cement concrete pavement and a construction method. The washboard type cement concrete pavement provided by the present disclosure comprises: the pavement structure comprises a base layer and a plurality of pavement units fixedly arranged on the base layer, wherein the pavement units are sequentially arranged along the extending direction of the base layer; the top surfaces of the pavement units form a slope, a gap is formed between every two adjacent pavement units, the pavement is divided into a plurality of modules, the pavement is modularized, the construction method is simple, the top surfaces of the pavement units form the slope, the slope of the slope is easy to control, and large deviation is not easy to occur.
Description
Technical Field
The disclosure relates to the technical field of construction engineering, in particular to a washboard type cement concrete pavement and a construction method.
Background
With the vigorous development of the automobile industry in China, an automobile test field for automobile performance testing is built like a bamboo shoot in spring after rain, various roads which actually exist in the test field are concentrated, concentrated and strengthened without distortion to form a typical road, and therefore the requirements of enterprises on the aspects of new automobile product shaping tests, mandatory inspection tests and the like are met. The washboard road surface is one type, and the elevation of the chamfer angle position of the traditional washboard type cement concrete road surface is easy to have large deviation in the construction process, so that the construction quality is not easy to control.
Disclosure of Invention
In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a washboard type cement concrete pavement and a construction method.
The first aspect of the present disclosure provides a washboard type cement concrete pavement, including: the pavement structure comprises a base layer and a plurality of pavement units fixedly arranged on the base layer, wherein the pavement units are sequentially arranged along the extending direction of the base layer;
the top surface of the pavement unit forms a slope surface, and a gap is formed between every two adjacent pavement units.
Furthermore, the pavement unit comprises a first angle steel and a second angle steel, the first angle steel and the second angle steel are respectively and fixedly connected with the base layer, a concrete layer is arranged between the first angle steel and the second angle steel, and the top surface of the concrete layer forms the slope.
Further, the first corner steel comprises a first plate part and a second plate part which are perpendicular to each other, the first plate part is perpendicular to the base layer, and the second plate part is fixedly connected with the base layer;
the second angle steel comprises a third plate part and a fourth plate part which are perpendicular to each other, the third plate part is perpendicular to the base layer, and the fourth plate part is fixedly connected with the base layer;
the second plate portion is disposed on a side close to the third plate portion, and the fourth plate portion is disposed on a side close to the first plate portion.
Further, the height of the first plate portion is higher than the height of the third plate portion in a direction perpendicular to the base layer.
Furthermore, the slope alpha of the slope surface is more than or equal to 1% and less than or equal to 4%.
Further, the second plate part is fixedly connected with the base layer through a plurality of first bolts, and the first bolts are arranged at intervals along the extending direction of the second plate part;
the distance L1 between two adjacent first bolts meets the condition that L1 is more than or equal to 1.5cm and less than or equal to 2.5 cm.
Further, the fourth plate portion and the base layer are fixedly connected through a plurality of second bolts, and the second bolts are arranged at intervals along the extending direction of the fourth plate portion;
the distance L2 between two adjacent second bolts meets the condition that L2 is more than or equal to 1.5cm and less than or equal to 2.5 cm.
Further, along the extending direction of the base layer, the first bolt and the second bolt are arranged in a staggered mode.
Further, the clearance d between two adjacent road surface units satisfies: d is more than or equal to 0.5cm and less than or equal to 1.2 cm.
The second aspect of the disclosure provides a washboard type cement concrete pavement construction method, which comprises the following steps:
s1, determining the positions of the first angle steel and the second angle steel
Along the extending direction of the base layer, the initial sideline is taken as the position line of a first angle steel, the distance D1 is the position line of a second first angle steel, the distance D1 is the position line of a third first angle steel, and n position lines of the first angle steel are sequentially arranged;
a gap D2 between the first angle steel and the first angle steel is a position line of the first second angle steel, a gap D2 between the first angle steel and the second first angle steel is a position line of the second angle steel, a gap D2 between the first angle steel and the third first angle steel is a position line of the third second angle steel, and n position lines of the second angle steel are sequentially arranged;
s2, angle steel installation
The first angle steel is placed on the position line of the first angle steel, the position of the bolt hole is marked, the second angle steel is placed on the position line of the second angle steel, the position of the bolt hole is marked,
s3, bolt punching and mounting
Drilling by adopting an electric pick according to the identified bolt hole;
s4, placing the first angle steel on the position line of the first angle steel, and fixing the first angle steel by a first bolt;
placing the second angle steel on the position line of the second angle steel, and fixing the second angle steel by using a second bolt;
s5, pouring concrete and preserving health
Concrete with the breaking strength of more than or equal to 4.5MPa is adopted, the concrete is poured in a U-shaped groove formed by the installed first angle steel and second angle steel, the face is timely vibrated and collected, and the flatness of the pavement is ensured to be not more than +/-2 mm in the face collecting process;
s6 pointing between adjacent angle steels
And the gap D2 is subjected to jointing by adopting M10 cement mortar, the consistency of the cement mortar is between 50 and 70s, and the strength is M10.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
the washboard type cement concrete pavement provided by the embodiment of the disclosure comprises: the base course sets gradually along the extending direction of base course with fixed a plurality of road surface units that set up on the base course, and a plurality of road surface units divide into a plurality of modules with the road surface, make the road surface modularization, and construction method is simple, when accomplishing construction back on the road surface and using, if a certain road surface unit damages, can demolish the road surface unit who damages, changes, has reduced replacement cost. The top surface of the pavement unit forms a slope surface, the slope of the slope surface is easy to control, and large deviation is not easy to occur. Have the clearance between two adjacent road surface units, can regard as the gap of road surface unit inflation or shrink on the one hand, on the other hand is convenient for change the road surface unit of damage, and not fragile adjacent road surface unit in the change process, and then has reduced the replacement cost.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a washboard type cement concrete pavement according to an embodiment of the disclosure;
FIG. 2 is a schematic structural diagram of a pavement unit in a washboard-type cement concrete pavement according to an embodiment of the disclosure;
FIG. 3 is a flow chart of a method of constructing a washboard-type cement concrete pavement according to an embodiment of the disclosure;
fig. 4 is a schematic structural diagram of the washboard type cement concrete pavement construction method according to the embodiment of the disclosure.
Reference numerals: 1. a pavement unit; 11. a first angle steel; 111. a first plate portion; 112. a second plate portion; 12. a second angle steel; 121. a third plate portion; 122. a fourth plate portion; 2. a concrete layer; 3. a base layer; 4. a gap; 5. a position line 5 of the first angle steel; 6. a position line 6 of the second angle iron; 7. bolt holes 7.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
Referring to fig. 1 and 2, a washboard type cement concrete pavement provided by the embodiment of the disclosure includes: basic unit 3 and the fixed a plurality of road surface units 1 that set up on basic unit 3, a plurality of road surface units 1 set gradually along basic unit 3's extending direction, and a plurality of road surface units 1 divide into a plurality of modules with the road surface, make the road surface modularization, and construction method is simple, when using after the construction is accomplished on the road surface, if a certain road surface unit 1 damages, can demolish the road surface unit 1 who damages, changes, has reduced the replacement cost. The top surface of the pavement unit 1 forms a slope surface, the slope of the slope surface is easy to control, and large deviation is not easy to occur. Have clearance 4 between two adjacent road surface units 1, can regard as the gap of 1 inflation of road surface unit or shrink on the one hand, on the other hand is convenient for change the road surface unit 1 of damage, and difficult adjacent road surface unit 1 is not fragile in the change process, and then has reduced replacement cost.
In some specific embodiments, the pavement unit 1 includes a first angle steel 11 and a second angle steel 12, the first angle steel 11 and the second angle steel 12 are respectively fixedly connected with the base layer 3, a concrete layer 2 is disposed between the first angle steel 11 and the second angle steel 12, and a top surface of the concrete layer 2 forms a slope. According to the embodiment, the first angle steel 11 and the second angle steel 12 are adopted for shaping, so that the construction is simple and convenient, the speed is high, the construction and production organization are facilitated, and the construction period is effectively shortened; by adopting the shaping construction of the first angle steel 11 and the second angle steel 12, the flatness of concrete can be ensured, the height difference of a chamfer can be accurately controlled, and the edge and corner rigidity of a finished product can be improved; through adopting first angle steel 11 and second angle steel 12 permanent fixation, can play the fixed support effect to finished product edges and corners, increase road life.
In some specific embodiments, the first angle steel 11 includes a first plate portion 111 and a second plate portion 112 perpendicular to each other, the first plate portion 111 is perpendicular to the base layer 3, and the second plate portion 112 is fixedly connected to the base layer 3; the second angle steel 12 comprises a third plate part 121 and a fourth plate part 122 which are perpendicular to each other, the third plate part 121 is perpendicular to the base layer 3, and the fourth plate part 122 is fixedly connected with the base layer 3; the second plate part 112 is arranged at one side close to the third plate part 121, the fourth plate part 122 is arranged at one side close to the first plate part 111, a U-shaped groove with a fixed distance is formed between the first angle steel 11 and the second angle steel 12, the road surface is made to be in a washboard shape through the height difference between the first plate part 111 and the third plate part 121 at two sides of the U-shaped groove, and the construction of the washboard type road surface is completed in the mode that concrete is poured in the U-shaped groove.
In some embodiments, the height of the first plate portion 111 is higher than the height of the third plate portion 121 in a direction perpendicular to the base layer 3, making the road surface "washboard-like".
In some specific embodiments, the slope surface has a slope α satisfying 1% to 4%.
In some specific embodiments, along the road driving direction, i.e. the extending direction of the base layer 3, with the starting edge line of the road driving direction as the position line of the first angle steel 11, the distance of 17.5cm as the position line of the second angle steel 12, and the distance between the first angle steel 11 and the second angle steel 12 in two adjacent road surface units 1 as 1cm, the above steps are repeated to obtain the positions of all the first angle steel 11 and the second angle steel 12. When the position lines of the first angle steel 11 and the second angle steel 12 are positioned, the error of the distance between the two adjacent angle steel lines is guaranteed to be +/-2 mm, and each angle steel line is perpendicular to a road side line.
In some specific embodiments, the second plate portion 112 and the base layer 3 are fixedly connected by a plurality of first bolts, the plurality of first bolts are arranged at intervals along the extending direction of the second plate portion 112, and the distance L1 between two adjacent first bolts satisfies 1.5cm ≦ L1 ≦ 2.5 cm.
In some specific embodiments, the fourth plate portion 122 is fixedly connected to the base layer 3 by a plurality of second bolts, and the plurality of second bolts are arranged at intervals along the direction in which the fourth plate portion 122 extends. The distance L2 between two adjacent second bolts meets the condition that L2 is more than or equal to 1.5cm and less than or equal to 2.5 cm.
In some embodiments, the first angle steel 11 is machined to be 1.2m long with a length error within ± 5mm using 50 × 5 equilateral angle steel, and the second angle steel 12 is machined to be 1.2m long with a length error within ± 5mm using 45 × 5 equilateral angle steel. And (3) drilling holes on the equal-edge angle steels of 50X 5 and 45X 5, wherein the number of the holes is 6 and 5 respectively, and the hole diameter is slightly larger than the M14 expansion bolt by 2-4mm, so that the angle steels can be finely adjusted in the fixing process. 7 numbers of the two types of angle steel processing bolt holes are different, a certain distance is transversely reserved on the section where the hole is punched, cracks are prevented from appearing on the base layer 3, and the stability of the implanted expansion bolt is guaranteed.
The height of the second angle steel 12 is vertically placed on a first angle steel position line, the position of an angle steel expansion bolt hole 7 is marked, the wall thickness of the first angle steel 11 is placed on a second angle steel position line, the position of the angle steel expansion bolt hole 7 is marked, two angle steel wall thickness outer sides of different specifications are enabled to form a 17.5cm wide U-shaped groove, the width of the U-shaped groove can also be 17cm and 18cm … …, the height of the second angle steel 12 is placed on a third angle steel position line, the position of the angle steel expansion bolt hole 7 is marked, a 1cm distance is formed between every two adjacent angle steels, and the steps are repeated, so that the positions of the expansion bolt holes 7 on the two sides of all the angle steels can be obtained.
a. And drilling by adopting an electric pick according to the identified expansion bolt hole 7, drilling a hole with the depth of 8cm downwards perpendicular to the center of the bolt position identification by using the center of an electric pick drill bit, wherein the diameter of the hole is slightly smaller than the diameter of the expansion bolt by 1-2mm, ensuring that the expansion bolt is well fixed with the road surface when being implanted into the hole, ensuring that the length of the electric hammer drill bit is 10cm before drilling, ensuring that all drill bits are implanted into the road surface after drilling at each time, and ensuring that the depth of the hole is 8 cm.
b. And vertically driving an M14 expansion bolt with the length of 11cm and the length of a sleeve of 5cm into the position for punching, and ensuring that the bolt is exposed by 3 cm.
And putting angle steels with corresponding specifications on the position lines of the corresponding angle steels and fixing the angle steels by using expansion bolts, and ensuring that the distance between U-shaped grooves formed between the outer sides of the wall thicknesses of the fixed angle steels is 17.5cm and the error is within +/-2 cm.
The concrete with the breaking strength of more than or equal to 4.5MPa is adopted. Concrete is poured in the installed U-shaped groove of the angle steel, the face is timely vibrated and collected, and the flatness of the road surface is not larger than +/-2 mm in the face collecting process. And after the concrete pouring is finished, cleaning cement mortar in a 1cm gap between the two specifications of angle steels. The geotextile is used for covering and watering for curing, the curing period is not less than 14 days, and concrete cracking is avoided.
In some specific embodiments, the first bolt and the second bolt are arranged in a staggered manner along the extending direction of the base layer 3, so that the connection stability of the first angle iron or the second angle iron can be improved.
In some specific embodiments, the gap 4d between two adjacent pavement units 1 satisfies: d is not less than 0.5cm and not more than 1.2cm, on one hand, the pavement units can be used as expansion or contraction gaps of the pavement units 1, on the other hand, the damaged pavement units 1 are convenient to replace, the adjacent pavement units 1 are not easy to damage in the replacement process, and further, the replacement cost is reduced.
M10 cement mortar is adopted for gap 4 pointing, water is added according to the product design proportion to fill the space between the angle steels, the consistency of the cement mortar is 50-70s, the strength is M10, the filling is guaranteed to be compact, the filling height is flush with the height of the third plate part 121, and the filling surface is smooth and straight.
With reference to fig. 3 and 4, an embodiment of the present disclosure further provides a washboard type cement concrete pavement construction method, including the following steps:
and S1, determining the positions of the first angle steel 11 and the second angle steel 12.
Along the extending direction of the base layer 3, the initial sideline is taken as the position line 5 of a first angle steel, the distance D1 is the position line 5 of a second first angle steel, the distance D1 is the position line 5 of a third first angle steel, and n position lines 5 of the first angle steel are sequentially arranged;
a gap D2 between the first angle steel and the position line 5 of the first angle steel is the position line 6 of the first second angle steel, a gap D2 between the first angle steel and the position line 5 of the second first angle steel is the position line 6 of the second angle steel, a gap D2 between the first angle steel and the position line 5 of the third first angle steel is the position line 6 of the third second angle steel, and n position lines 6 of the second angle steel are sequentially arranged.
Specifically, the outer side of the wall thickness of an angle steel with the height of 4.5cm is vertically placed on a first angle steel position line, the position of an angle steel expansion bolt hole is marked, the outer side of the wall thickness of an angle steel with the height of 5cm is placed on a second angle steel position line, the position of the angle steel expansion bolt hole is marked, a U-shaped groove with the width of 17.5cm is formed in the outer side of the wall thickness of two angle steels with different specifications, the position of an angle steel expansion bolt hole is marked, a 1cm distance is formed between every two adjacent angle steels, and the steps are repeated, so that the positions of the expansion bolt holes 7 on the two sides of all the angle steels can be obtained.
S2, mounting angle steel; the first angle steel 11 is placed on the position line 5 of the first angle steel to mark the position of the bolt hole 7, and the second angle steel 12 is placed on the position line 6 of the second angle steel to mark the position of the bolt hole 7. Specifically, the electric pick is adopted for punching according to the identified expansion bolt hole 7, a hole with the depth of 8cm and the diameter slightly smaller than the diameter of the expansion bolt is 1-2mm is drilled downwards in the center of the electric pick drill bit perpendicular to the bolt position identification center, the expansion bolt is guaranteed to be well fixed with the road surface when being implanted into the hole, the length of the electric hammer drill bit is guaranteed to be 10cm before drilling, the drill bit is guaranteed to be completely implanted into the road surface every time of punching, and the depth of the hole is guaranteed to be 8 cm. And vertically driving an M14 expansion bolt with the length of 11cm and the length of a sleeve of 5cm into the position for punching, and ensuring that the bolt is exposed by 3 cm.
Angle steel debugging and fixing
And putting angle steels with corresponding specifications on the position lines of the corresponding angle steels and fixing the angle steels by using expansion bolts, and ensuring that the distance between U-shaped grooves formed between the outer sides of the wall thicknesses of the fixed angle steels is 17.5cm and the error is within +/-2 cm.
S3, bolt punching and mounting
Drilling by adopting an electric pick according to the identified bolt hole 7;
s4, placing the first angle steel 11 on the position line 5 of the first angle steel, and fixing the first angle steel by a first bolt;
placing a second angle steel 12 on the position line 6 of the second angle steel, and fixing the second angle steel by using a second bolt;
s5, pouring concrete and preserving health
Adopting concrete with the breaking strength of more than or equal to 4.5MPa, pouring the concrete in a U-shaped groove formed by the installed first angle steel 11 and second angle steel 12, vibrating and collecting the surface in time, and ensuring that the flatness of the pavement is not more than +/-2 mm in the surface collecting process; and after the concrete pouring is finished, cleaning cement mortar in a 1cm gap between the two specifications of angle steels. The base course is cured by covering the geotextile with water, the curing period is not less than 14 days, and the concrete is prevented from cracking.
S6 pointing between adjacent angle steels
And the gap D2 is subjected to jointing by adopting M10 cement mortar, the consistency of the cement mortar is between 50 and 70s, and the strength is M10. The filling is guaranteed to be compact, the filling height is flush with 45 × 5 type angle steel, and the filling surface is smooth and straight.
After the construction is finished, the traffic is closed in time, the passing of mechanical equipment is forbidden, and the pavement of the washboard is prevented from being damaged.
By adjusting the construction mode, the construction progress is accelerated, the construction period is saved, and the investment of management cost can be reduced. When the concrete is cured, the geotextile is adopted to cover the concrete to preserve water and cure the concrete, so that the waste of water resources is reduced. The construction qualification rate is higher than the design requirement, and the rework cost can be greatly reduced.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A washboard type cement concrete pavement is characterized by comprising: the pavement structure comprises a base layer (3) and a plurality of pavement units (1) fixedly arranged on the base layer (3), wherein the pavement units (1) are sequentially arranged along the extending direction of the base layer (3);
the top surface of each road surface unit (1) forms a slope, and a gap (4) is formed between every two adjacent road surface units (1).
2. Washboard type cement concrete pavement according to claim 1, characterized in that the pavement unit (1) comprises a first angle (11) and a second angle (12), the first angle (11) and the second angle (12) are fixedly connected to the base layer (3) respectively, a concrete layer (2) is arranged between the first angle (11) and the second angle (12), and the top surface of the concrete layer (2) forms the slope.
3. Washboard type cement concrete pavement according to claim 2, characterized in that the first angle steel (11) comprises a first plate (111) and a second plate (112) perpendicular to each other, the first plate (111) being perpendicular to the base layer (3) and the second plate (112) being fixedly connected to the base layer (3);
the second angle steel (12) comprises a third plate part (121) and a fourth plate part (122) which are perpendicular to each other, the third plate part (121) is perpendicular to the base layer (3), and the fourth plate part (122) is fixedly connected with the base layer (3);
the second plate portion (112) is provided on a side close to the third plate portion (121), and the fourth plate portion (122) is provided on a side close to the first plate portion (111).
4. Washboard-type cement concrete pavement according to claim 3, characterized in that the height of the first plate section (111) is higher than the height of the third plate section (121) in a direction perpendicular to the base layer (3).
5. The washboard type cement concrete pavement of claim 4 wherein the slope α satisfies the condition of 1% to 4%.
6. Washboard type cement concrete pavement according to claim 3, characterized in that the second board (112) is fixedly connected to the base layer (3) by a plurality of first bolts spaced along the direction in which the second board (112) extends;
the distance L1 between two adjacent first bolts meets the condition that L1 is more than or equal to 1.5cm and less than or equal to 2.5 cm.
7. Washboard type cement concrete pavement according to claim 6, characterized in that the fourth board (122) is fixedly connected to the base layer (3) by a plurality of second bolts spaced apart in the direction in which the fourth board (122) extends;
the distance L2 between two adjacent second bolts meets the condition that L2 is more than or equal to 1.5cm and less than or equal to 2.5 cm.
8. Washboard type cement concrete pavement according to claim 7, characterized in that the first bolts and the second bolts are arranged offset in the extension direction of the base layer (3).
9. Washboard-type cement concrete pavement according to any of claims 1 to 8, characterized in that the gap (4) d between two adjacent pavement units (1) is such that: d is more than or equal to 0.5cm and less than or equal to 1.2 cm.
10. The washboard type cement concrete pavement construction method is characterized by comprising the following steps of:
s1, determining the positions of the first angle steel (11) and the second angle steel (12)
Along the extending direction of the base layer (3), the initial sideline is taken as the position line (5) of a first angle steel, the distance D1 is the position line (5) of a second first angle steel, the distance D1 is the position line (5) of a third first angle steel, and n position lines (5) of the first angle steel are sequentially arranged;
a gap D2 between the position line of the first angle steel and the position line (5) of the first angle steel is a position line (6) of the first second angle steel, a gap D2 between the position line of the second first angle steel and the position line (5) of the second first angle steel is a position line (6) of the second angle steel, a gap D2 between the position line of the third first angle steel and the position line (5) of the third second angle steel is a position line (6) of the third second angle steel, and n position lines (6) of the second angle steel are sequentially arranged;
s2, angle steel installation
Placing a first angle steel (11) on a position line (5) of the first angle steel to mark the position of the bolt hole (7), and placing a second angle steel (12) on a position line (6) of the second angle steel to mark the position of the bolt hole (7);
s3, bolt punching and mounting
Drilling by adopting an electric pick according to the identified bolt hole (7);
s4, placing the first angle steel (11) in the position line (5) of the first angle steel and fixing the first angle steel by a first bolt;
placing a second angle steel (12) in the position line (6) of the second angle steel, and fixing the second angle steel by using a second bolt;
s5, pouring concrete and preserving health
Concrete with the breaking strength of more than or equal to 4.5MPa is adopted, the concrete is poured in a U-shaped groove formed by the installed first angle steel (11) and second angle steel (12), the surface is timely vibrated and collected, and the flatness of the pavement is not more than +/-2 mm in the surface collecting process;
s6 pointing between adjacent angle steels
And the gap D2 is subjected to jointing by adopting M10 cement mortar, the consistency of the cement mortar is between 50 and 70s, and the strength is M10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110875644.5A CN113622249A (en) | 2021-07-30 | 2021-07-30 | Washboard type cement concrete pavement and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648870A (en) * | 2015-09-30 | 2016-06-08 | 中交公局第五工程有限公司 | Construction method for washboard road of test field |
| CN206266985U (en) * | 2016-11-22 | 2017-06-20 | 山西一建集团有限公司 | A kind of new automobile stone material pits rampway structure |
| CN211922165U (en) * | 2019-12-16 | 2020-11-13 | 衡水斑马汽车研发有限公司 | Test run runway |
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2021
- 2021-07-30 CN CN202110875644.5A patent/CN113622249A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648870A (en) * | 2015-09-30 | 2016-06-08 | 中交公局第五工程有限公司 | Construction method for washboard road of test field |
| CN206266985U (en) * | 2016-11-22 | 2017-06-20 | 山西一建集团有限公司 | A kind of new automobile stone material pits rampway structure |
| CN211922165U (en) * | 2019-12-16 | 2020-11-13 | 衡水斑马汽车研发有限公司 | Test run runway |
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Application publication date: 20211109 |