CN109267453A - Method for rolling asphalt on oversized inclined plane of high-speed loop of test yard - Google Patents
Method for rolling asphalt on oversized inclined plane of high-speed loop of test yard Download PDFInfo
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- CN109267453A CN109267453A CN201811234254.4A CN201811234254A CN109267453A CN 109267453 A CN109267453 A CN 109267453A CN 201811234254 A CN201811234254 A CN 201811234254A CN 109267453 A CN109267453 A CN 109267453A
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- dragger
- road roller
- curved surface
- weight
- hoist engine
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- 238000005096 rolling process Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000010426 asphalt Substances 0.000 title abstract description 3
- 230000005484 gravity Effects 0.000 claims abstract description 23
- 238000004088 simulation Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract 2
- 238000010276 construction Methods 0.000 description 6
- 238000012935 Averaging Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
Classifications
-
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/08—Construction
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- Human Resources & Organizations (AREA)
- Physics & Mathematics (AREA)
- Economics (AREA)
- Marketing (AREA)
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- General Business, Economics & Management (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Theoretical Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a method for rolling asphalt on an oversized inclined plane of a high-speed loop in a test yard, which comprises the steps of performing simulation selection in advance from the domestic existing tractors and road rollers according to the width of a loop curved surface, ensuring that the weight of the tractors is larger than that of the road rollers, ensuring that the tractors can support the road rollers and cannot slide down, further calculating traction force required to be provided by a winch, necessarily giving the weight and bending moment of each part in a product specification of the tractors, calculating the equipment gravity center of the tractors according to the weight and the bending moment of each part, calculating the overturning coefficient of the tractors according to the equipment gravity center, the traction force and the vertical distance from the winch to the front end of the tractors, judging whether the road rollers are overturned by the tractors in the actual application process, actually performing assembly and arrangement if the overturning cannot occur, then finishing rolling, ensuring that the road rollers roll along the length direction of the loop curved surface, the traction machine provides traction force to avoid the road roller from leaving tire marks, and the road flatness is ensured.
Description
Technical field
The invention belongs to skid pad high speed circuit construction field, in particular to a kind of skid pad high speed circuit super large inclined-plane drip
Green rolling method.
Background technique
Large-scale expansion with skid pad construction in China, traditional concrete pavement have been unable to meet current skid pad
The high-precision requirement of road surface ride comfort, and the technique of asphalt pavement construction and technology reach its maturity.The limited public affairs of Shanghai Volkswagen's automobile
The 21% lateral one-way slope curved section that department's construction high speed circuit is radius 1500m, has very very much not with conventional Surfaces for High Speed circuit
Together, such high speed circuit is first appeared for the country.Its tilt angle is excessive, is super large inclined-plane road surface, conventional road roller is in slope surface
It rolls, due to stress, rolls rear slope surface and have tyre roller print, influence road evenness.And because slope surface tilts
The excessive road roller of angle is travelled in slope surface, has a possibility that toppling.To solve the above problems, domestic, there is no corresponding constructions
Mechanical and construction method.
Summary of the invention
The purpose of the present invention is to provide a kind of skid pad high speed circuit super large inclined-plane pitch rolling methods, it is ensured that road roller
When the length direction along circuit carries out rolling super large inclined-plane, dragger provides tractive force and road roller is avoided to leave tire print, protects
Demonstrate,prove road evenness.
To achieve the goals above, the present invention takes following technical scheme: a kind of skid pad high speed circuit super large inclined-plane drip
Green rolling method includes the following steps: A, selects dragger first, according to the width of the dragger and circuit curved surface that have been selected
Suitable road roller is pre-selected out, if the weight of dragger is X, the weight of road roller is P, it is ensured that X > P, simulation is being led in advance
Draw the front end arrangement hoist engine of machine, and records the installation site of hoist engine at this time；
B, the tractive force P3 that hoist engine need to provide is calculated according to the weight of road roller first, it is as follows calculates publicity: road roller
Relative to the oblique component P1=P*sin θ of circuit curved surface, vertical stress component P2=P*cos θ, θ of the road roller relative to circuit curved surface
For the tilt angle of circuit curved surface；
1.2 μ of P3=P1+P2 μ * 1.2=P*sin θ+P*cos θ * μ * is coefficient of friction, and 1.2 be safety coefficient；
According to tractive force P3 calculate dragger the stability that leans forward: calculate the equipment center of gravity of dragger, if equipment center of gravity away from
The distance of geometric center is a, a=dragger weight/moment of flexure, b=dragger entire length；
When a is positive value, equipment center of gravity is in the front end of dragger, and when a is negative value, equipment center of gravity is in dragger
Rear end, the vertical range L2=b/2-a of the front end of dragger to equipment center of gravity, the front end of hoist engine to dragger it is vertical away from
From for L1；
Overturning moment M1=P3*L1；
Antidumping moment M 2=P2*L2；
Overturning Coefficient n=M2/M1；
Judge whether Overturning Coefficient is greater than 1.15, meets overturning stability requirement if it is greater than then dragger, determine elevator
The tractive force that machine provides is P3；If it is less than then needing the installation site of adjustment hoist engine that hoist engine is made to lean forward with respect to dragger
Center is lowered, or reselects dragger, road roller until Overturning Coefficient is greater than 1.15；
C, suitable dragger, road roller and after adjusting the installation site of hoist engine have been selected, dragger has been arranged
In the top of the slope of circuit curved surface, road roller is arranged on circuit curved surface, so that the side of the wirerope of hoist engine and road roller connects,
Ensure that the tilt angle of wirerope is consistent with the tilt angle theta of circuit curved surface, synchronous averaging dragger and road roller make road roller
Length direction along circuit curved surface is rolled.
Further include following content in the step B: equipment center is carried out according to each component weight and moment of flexure of dragger
It calculates, each component includes cycle body, hoist engine, swing arm, counterweight, valve and accessory, tire, tire frame, tire
Protection ring, wheel shaft, main motor, transmission shaft, frame, sliding case, sliding cylinder, sliding case counterweight, inclined-plane side fixed weight, front and back
Fixed weight.
Further include following content in the step C: the side of the road roller is provided with welding steel, the weldering
The plate face for connecing steel plate is provided with several wirerope connecting holes from top to bottom.
In above-mentioned technical proposal, road from domestic existing dragger and is pressed according to the width on circuit curved surface super large inclined-plane first
Carry out preparatory analog selection in machine, the weight of dragger ensures bigger than road roller, and guaranteeing that traction function supports road roller will not
It glides, secondly further calculates the tractive force that hoist engine need to provide, will necessarily be provided in the product description of dragger each
The weight and moment of flexure of component calculate the equipment center of gravity of dragger accordingly, according to equipment center of gravity, tractive force and hoist engine to traction
The vertical range of the front end of machine calculates the Overturning Coefficient of dragger, judges to draw machine travel pressure in actual application with this
Whether road machine can topple, practical if it will not topple to carry out assembled arrangement, subsequently complete and roll, with the prior art
It compares, carries out being adjusted arrangement dragger and road roller again after accurate calculate, it is ensured that road roller is along circuit curved surface
Length direction when carrying out rolling super large inclined-plane, dragger provides tractive force and road roller is avoided to leave tire print, guarantees that road is flat
Whole degree.
Detailed description of the invention
Fig. 1 is the schematic diagram of the method for the present invention.
Specific embodiment
In conjunction with attached drawing, 1 couple of present invention is made further instructions:
A kind of skid pad high speed circuit super large inclined-plane pitch rolling method, includes the following steps:
A, dragger 10 is selected first, is pre-selected out and is closed according to the width of the dragger 10 and circuit curved surface that have been selected
Suitable road roller 20, if the weight of dragger 10 is X, the weight of road roller 20 is P, it is ensured that X > P, simulation is in dragger 10 in advance
Front end arrange hoist engine 30, and record the installation site of hoist engine 30 at this time；
B, the tractive force P3 that hoist engine 30 need to provide is calculated according to the weight of road roller 20 first, it is as follows calculates publicity: pressure
Road the machine 20 oblique component P1=P*sin θ relative to circuit curved surface, vertical stress component P2=of the road roller 20 relative to circuit curved surface
P*cos θ, θ are the tilt angle of circuit curved surface；
1.2 μ of P3=P1+P2 μ * 1.2=P*sin θ+P*cos θ * μ * is coefficient of friction, and 1.2 be safety coefficient；
The stability that leans forward of dragger 10 is calculated according to tractive force P3: the equipment center of gravity of dragger 10 is calculated, if equipment weight
Distance of the heart away from geometric center is a, a=dragger weight/moment of flexure, b=dragger entire length；
When a is positive value, equipment center of gravity is in the front end of dragger 10, and when a is negative value, equipment center of gravity is in dragger
10 rear end, the vertical range L2=b/2-a of the front end of dragger 10 to equipment center of gravity, before hoist engine 30 to dragger 10
The vertical range at end is L1；
Overturning moment M1=P3*L1；
Antidumping moment M 2=P2*L2；
Overturning Coefficient n=M2/M1；
Judge whether Overturning Coefficient is greater than 1.15, meets overturning stability requirement if it is greater than then dragger 10, determine volume
The tractive force for raising the offer of machine 30 is P3；If it is less than then needing the installation site of adjustment hoist engine 30 to make hoist engine 30 is opposite to draw
The center downward of leaning forward of machine 10, or dragger 10, road roller 20 are reselected until Overturning Coefficient is greater than 1.15；
C, suitable dragger 10, road roller 20 and after adjusting the installation site of hoist engine 30 have been selected, will have been drawn
Machine 10 is arranged in the top of the slope of circuit curved surface, and road roller 20 is arranged on circuit curved surface, so that the wirerope of hoist engine 30 and pressure road
The side of machine 20 connects, it is ensured that the tilt angle of wirerope is consistent with the tilt angle theta of circuit curved surface, synchronous averaging dragger 10
And road roller 20, roll road roller 20 along the length direction of circuit curved surface.
It is carried out in advance from domestic existing dragger 10 with road roller 20 according to the width on circuit curved surface super large inclined-plane first
First analog selection, the weight of dragger 10 ensure it is bigger than road roller 20, guarantee dragger 10 can support road roller 20 will not under
It is sliding, the tractive force that hoist engine 30 need to provide secondly further is calculated, will necessarily be provided in the product description of dragger 10
The weight and moment of flexure of each component calculate the equipment center of gravity of dragger 10 accordingly, according to equipment center of gravity, tractive force and hoist engine 30
Vertical range to the front end of dragger 10 calculates the Overturning Coefficient of dragger 10, judges to lead in actual application with this
Draw machine 10 and draws whether road roller 20 can topple, it is practical if it will not topple to carry out assembled arrangement, it subsequently completes
It rolls, compared with prior art, carries out being adjusted arrangement dragger and road roller again after accurate calculate, it is ensured that pressure road
When the length direction along circuit curved surface carries out rolling super large inclined-plane, dragger provides tractive force and road roller is avoided to leave tire machine
Print guarantees road evenness.
Further include following content in the step B: equipment center according to each component weight of dragger 10 and moment of flexure into
Row calculates, and each component includes cycle body, hoist engine, swing arm, counterweight, valve and accessory, tire, tire frame, wheel
It is tire protection ring, wheel shaft, main motor, transmission shaft, frame, sliding case, sliding cylinder, sliding case counterweight, inclined-plane side fixed weight, preceding
Fixed weight afterwards.
Further include following content in the step C: the side of the road roller 20 is provided with welding steel 40, described
The plate face of welding steel 40 be provided with several wirerope connecting holes from top to bottom.Be arranged welding steel 40, convenient for wirerope into
Row connection, and several each wirerope connecting holes are opened up, convenient for adjusting installation site, it is ensured that the tilt angle circuit of wirerope is bent
The tilt angle theta in face is consistent.
Specific embodiment is as follows, and dragger 10 selects domestic existing 25.8t dragger, according to the width pressure of circuit curved surface
Road machine 20 selects 13t road roller, and the tilt angle theta of circuit curved surface is set as 12 °,
P1=130*sin12 °=27.03KN；P2=130*cos12 °=127.16KN；
μ is 0.25, then the tractive force that the hoist engine 30 of 25.8t dragger provides are as follows:
P3=P2* μ * 1.2+P1=127.16*0.25*1.2+27.03=65.18KN；
Each component weight of 25.8t dragger, moment of flexure and calculated center of gravity square table are as follows:
| Component names | Weight KN | Center of gravity is away from mm | Moment of flexure KN.m |
| Cycle body | 51.60 | -270 | -13.932 |
| Hoist engine | 10.00 | -109 | -1.09 |
| Swing arm | 10.00 | 650 | 6.5 |
| Counterweight | 42.00 | -2004 | -84.168 |
| Valve and accessory | 9.20 | -800 | -7.36 |
| Tire | 6.25 | 0 | 0 |
| Tire frame | 4.50 | 0 | 0 |
| Tire guard ring | 4.50 | 1300 | 5.85 |
| Wheel shaft | 15.00 | 0 | 0 |
| Main motor | 2.20 | 0 | 0 |
| Transmission shaft | 0.40 | 0 | 0 |
| Frame | 29.50 | 0 | 0 |
| Slide case | 18.00 | -1600 | -28.8 |
| Sliding cylinder | 0.80 | -500 | -0.4 |
| Slide case counterweight | 20.40 | -1600 | -32.64 |
| Inclined-plane side fixed weight | 13.45 | 900 | 12.105 |
| Front and back fixed weight | 20.40 | 0 | 0 |
| It is total: | 258.2 | 557 | -143.935 |
The equipment center of gravity of 25.8t dragger is calculated away from the distance of geometric center according to this are as follows:
A=-143.935KN.m/258.2KN=-557mm, wherein geometric center is in the length of 25.8t dragger
Middle position；
The length of 25.8t dragger is b=1918mm, then the vertical range of the front end of 25.8t dragger to equipment center of gravity
L2=b/2-a=1516mm；The vertical range of hoist engine 30 to the front end of dragger 10 is known, L1=2030mm；
Then overturning moment M1=P3*L1=65.18*2.03=132.32KN.m；
Antidumping moment M 2=P2*L2=127.16*1.516=192.78KN.m；
Overturning Coefficient n=192.78/132.32=1.46；
Its Overturning Coefficient is greater than 1.15, meets overturning stability requirement；
Determine that the tractive force that hoist engine 30 provides is 65.18KN；
25.8t dragger, 13t road roller are then specifically used, steel plate 40 is fixedly welded in the side of 13t road roller, makes
The wirerope of hoist engine 30 is connect with welding steel 40, adjusts wirerope tilt angle, starting up, and 13t road roller is ground
Press pitch.Also it is emphasized that when actually rolling, it should choose one section of circuit curved surface and tested, it is appropriate again accordingly on
The link position of the lower tractive force for adjusting hoist engine 30 and wirerope and welding steel 40.
Claims (3)
1. a kind of skid pad high speed circuit super large inclined-plane pitch rolling method, includes the following steps:
A, dragger (10) are selected first, is pre-selected out and is closed according to the width of the dragger (10) and circuit curved surface that have been selected
Suitable road roller (20), if the weight of dragger (10) is X, the weight of road roller (20) is P, it is ensured that X > P, simulation is being led in advance
Draw front end arrangement hoist engine (30) of machine (10), and records the installation site of hoist engine (30) at this time；
B, the tractive force P3 that hoist engine (30) need to provide is calculated according to the weight of road roller (20) first, it is as follows calculates publicity: pressure
Oblique component P1=P*sin θ of the road machine (20) relative to circuit curved surface, vertical stress component of the road roller (20) relative to circuit curved surface
P2=P*cos θ, (tilt angle that θ is circuit curved surface)；
P3=P1+P2 μ * 1.2=P*sin θ+P*cos θ * μ * 1.2(μ is coefficient of friction, and 1.2 be safety coefficient)；
The stability that leans forward of dragger (10) is calculated according to tractive force P3: the equipment center of gravity of dragger (10) is calculated, if equipment weight
Distance of the heart away from geometric center is a, a=dragger weight/moment of flexure, b=dragger entire length；
When a is positive value, equipment center of gravity is in the front end of dragger (10), and when a is negative value, equipment center of gravity is in dragger
(10) rear end, vertical range L2=b/2-a of the front end of dragger (10) to equipment center of gravity, hoist engine (30) to dragger
(10) vertical range of front end is L1；
Overturning moment M1=P3*L1；
2=P2*L2 of antidumping moment M；
Overturning Coefficient n=M2/M1；
Judge whether Overturning Coefficient is greater than 1.15, meets overturning stability requirement if it is greater than then dragger (10), determine elevator
The tractive force that machine (30) provides is P3；If it is less than then needing the installation site of adjustment hoist engine (30) to make hoist engine (30) opposite
The center downward of leaning forward of dragger (10), or dragger (10), road roller (20) are reselected until Overturning Coefficient is greater than 1.15；
C, suitable dragger (10), road roller (20) and after adjusting the installation sites of hoist engine (30) have been selected, will have been led
Draw the top of the slope that machine (10) is arranged in circuit curved surface, road roller (20) is arranged on circuit curved surface, so that the steel wire of hoist engine (30)
Rope is connect with the side of road roller (20), it is ensured that the tilt angle of wirerope is consistent with the tilt angle theta of circuit curved surface, synchronizes and opens
Dynamic dragger (10) and road roller (20), roll road roller (20) along the length direction of circuit curved surface.
2. high speed circuit super large in skid pad according to claim 1 inclined-plane pitch rolling method, it is characterised in that: described
Further include following content in step B: equipment center is calculated according to each component weight and moment of flexure of dragger (10), described
Each component include cycle body, hoist engine, swing arm, counterweight, valve and accessory, tire, tire frame, tire guard ring, wheel shaft,
Main motor, transmission shaft, frame, sliding case, sliding cylinder, sliding case counterweight, inclined-plane side fixed weight, front and back fixed weight.
3. high speed circuit super large in skid pad according to claim 1 inclined-plane pitch rolling method, it is characterised in that: described
Further include following content in step C: the side of the road roller (20) is provided with welding steel (40), the welding steel
(40) plate face is provided with several wirerope connecting holes from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811234254.4A CN109267453A (en) | 2018-10-23 | 2018-10-23 | Method for rolling asphalt on oversized inclined plane of high-speed loop of test yard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811234254.4A CN109267453A (en) | 2018-10-23 | 2018-10-23 | Method for rolling asphalt on oversized inclined plane of high-speed loop of test yard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109267453A true CN109267453A (en) | 2019-01-25 |
Family
ID=65193870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811234254.4A Pending CN109267453A (en) | 2018-10-23 | 2018-10-23 | Method for rolling asphalt on oversized inclined plane of high-speed loop of test yard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109267453A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87107457A (en) * | 1987-12-10 | 1988-07-27 | 陕西省水利机械厂 | Vibratory compactor |
| CN104612015A (en) * | 2014-12-26 | 2015-05-13 | 中铁四局集团有限公司 | Asphalt rolling method for curved surface of high-speed loop in test yard |
| CN206693000U (en) * | 2017-03-21 | 2017-12-01 | 中汽中心盐城汽车试验场有限公司 | Test pavement polishing trailer and grinding machine |
| CN107503257A (en) * | 2017-08-17 | 2017-12-22 | 浙江大学城市学院 | One kind is close to mountain high-filled subgrade stabilization and Deformation control structure and construction method |
-
2018
- 2018-10-23 CN CN201811234254.4A patent/CN109267453A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87107457A (en) * | 1987-12-10 | 1988-07-27 | 陕西省水利机械厂 | Vibratory compactor |
| CN104612015A (en) * | 2014-12-26 | 2015-05-13 | 中铁四局集团有限公司 | Asphalt rolling method for curved surface of high-speed loop in test yard |
| CN206693000U (en) * | 2017-03-21 | 2017-12-01 | 中汽中心盐城汽车试验场有限公司 | Test pavement polishing trailer and grinding machine |
| CN107503257A (en) * | 2017-08-17 | 2017-12-22 | 浙江大学城市学院 | One kind is close to mountain high-filled subgrade stabilization and Deformation control structure and construction method |
Non-Patent Citations (1)
| Title |
|---|
| 甘果: "自制车载式斜坡碾压牵引设备", 《施工技术》 * |
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Application publication date: 20190125 |