WO2022210978A1 - アスファルトフィニッシャ、及び路面舗装システム - Google Patents
アスファルトフィニッシャ、及び路面舗装システム Download PDFInfo
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- WO2022210978A1 WO2022210978A1 PCT/JP2022/016304 JP2022016304W WO2022210978A1 WO 2022210978 A1 WO2022210978 A1 WO 2022210978A1 JP 2022016304 W JP2022016304 W JP 2022016304W WO 2022210978 A1 WO2022210978 A1 WO 2022210978A1
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- Prior art keywords
- compaction
- pavement material
- degree
- road surface
- asphalt finisher
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- 239000010426 asphalt Substances 0.000 title claims abstract description 127
- 239000000463 material Substances 0.000 claims abstract description 143
- 230000007480 spreading Effects 0.000 claims abstract description 9
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- 238000005056 compaction Methods 0.000 claims description 204
- 238000004891 communication Methods 0.000 claims description 64
- 238000010276 construction Methods 0.000 claims description 64
- 238000009490 roller compaction Methods 0.000 claims description 14
- 238000009430 construction management Methods 0.000 claims description 12
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Images
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
- 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
- E01C19/48—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
-
- 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
- E01C19/004—Devices for guiding or controlling the machines along a predetermined path
-
- 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
- E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
- E01C19/288—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows adapted for monitoring characteristics of the material being compacted, e.g. indicating resonant frequency, measuring degree of compaction, by measuring values, detectable on the roller; using detected values to control operation of the roller, e.g. automatic adjustment of vibration responsive to such measurements
-
- 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
Definitions
- the present invention relates to asphalt finishers and road surface paving systems.
- a tractor Conventionally, a tractor, a hopper installed on the front side of the tractor to receive the pavement material, a conveyor for feeding the pavement material in the hopper to the rear side of the tractor, and a pavement material fed by the conveyor on the rear side of the tractor.
- An asphalt finisher is known which includes a spreading screw and a screed for spreading the pavement material spread by the screw behind the screw.
- Patent Literature 1 proposes a technique for displaying road conditions in order to recognize the required amount of composite material.
- the degree of compaction of the pavement material spread for each area of the road surface (in other words, the ratio of pavement material and voids) It may differ from the assumption.
- the asphalt finisher includes a tractor, a hopper installed on the front side of the tractor, a conveyor that conveys the pavement material in the hopper to the rear side of the tractor, and a conveyor that conveys the pavement material and spreads it on the road surface. It is the ratio of the screw that spreads the pavement material spread in the vehicle width direction, the screed device that spreads the pavement material spread by the screw evenly behind the screw, and the pavement material spread evenly on the road surface and the gap. and a measuring device for measuring compaction information indicative of the degree of compaction.
- the degree of compaction of the pavement material spread evenly on the road surface (the ratio of the pavement material to the voids)
- FIG. 1A is a left side view showing an asphalt finisher, which is an example of a road machine according to an embodiment.
- FIG. 1B is an upper side view showing an asphalt finisher, which is an example of the road machine according to the embodiment.
- FIG. 2A is a left side view showing an asphalt finisher, which is an example of a road machine according to a modification.
- FIG. 2B is an upper side view showing an asphalt finisher, which is an example of a road machine according to a modification.
- FIG. 3 is a block diagram illustrating a configuration example of a controller and devices connected to the controller according to the embodiment;
- FIG. 4 is a diagram illustrating an average value of compaction degrees for each predetermined region calculated by the compaction degree calculation unit according to the embodiment.
- FIG. 5 is a diagram illustrating a configuration example of a construction management system according to the embodiment
- FIG. 6 is a diagram showing an asphalt finisher, a dump truck, and a road roller, which are examples of road machinery according to the embodiment.
- FIG. 7 is a diagram showing the condition of the road surface on which construction is performed by the asphalt finisher according to the embodiment.
- FIG. 8 is a diagram exemplifying a construction information management sheet generated by an information generating unit according to the embodiment;
- FIG. 1A and 1B are diagrams showing an asphalt finisher 100, which is an example of a road machine according to an embodiment. Specifically, FIG. 1A is a left side view and FIG. 1B is a top view.
- the asphalt finisher 100 is mainly composed of a tractor 1, a hopper 2, and a screed 3 (an example of a screed device).
- a tractor 1 a hopper 2
- a screed 3 an example of a screed device.
- the road machine may be a base paver, a tack paver, a multi-asphalt paver, or the like.
- a compaction measuring instrument 8 is further provided behind the asphalt finisher 100 of this embodiment.
- the tractor 1 is a mechanism for moving the asphalt finisher 100.
- the tractor 1 rotates the rear wheels 5 using the hydraulic motor for traveling the rear wheels, and rotates the front wheels 6 using the hydraulic motor for traveling the front wheels to move the asphalt finisher 100 .
- the rear-wheel traveling hydraulic motor and the front-wheel traveling hydraulic motor are supplied with hydraulic oil from the hydraulic pump to rotate.
- the rear wheels 5 and front wheels 6 may be replaced by crawlers.
- the travel motor may be an electric motor.
- the hopper 2 is a mechanism for receiving pavement material.
- the hopper 2 is installed on the front side of the tractor 1 and configured to be opened and closed in the vehicle width direction (Y-axis direction) by a hopper cylinder.
- the asphalt finisher 100 normally fully opens the hopper 2 to receive paving material (eg, an asphalt mixture) from the bed of a dump truck.
- a dump truck is an example of a transport vehicle that transports pavement material.
- Figures 1A and 1B show the hopper 2 in a fully open state. When the pavement material in the hopper 2 decreases, the hopper 2 is closed and the pavement material near the inner wall of the hopper 2 is collected in the central portion of the hopper 2 .
- the conveyor CV in the middle of the hopper 2 can feed the paving material to the rear of the tractor 1 .
- the paving material fed to the rear side of the tractor 1 is spread in the vehicle width direction on the rear side of the tractor 1 and the front side of the screed 3 by the screw SC.
- the screw SC is in a state in which extension screws are connected to the left and right.
- 1A and 1B show the pavement material PV spread by the screws SC in a dot pattern.
- the screed 3 is a mechanism for spreading the paving material PV evenly.
- the screed 3 comprises a front screed 30 and a rear screed 31, as shown in FIG. 1B.
- the front screeds 30 include a left front screed 30L and a right front screed 30R.
- the rear screed 31 includes a left rear screed 31L and a right rear screed 31R.
- Screed 3 is a floating screed towed by tractor 1 and is connected to tractor 1 via leveling arms 3A.
- the screed 3 is moved up and down together with the leveling arm 3A by extension and contraction of the screed lift cylinder 24.
- the leveling cylinder 23 is a hydraulic cylinder that moves the front end portion of the leveling arm 3A up and down in order to adjust the thickness of the paving material.
- the leveling cylinder 23 has a cylinder portion connected to the tractor 1 and a rod portion connected to the connection portion of the leveling arm 3A with the tractor 1 .
- the controller 50 causes the hydraulic oil discharged from the hydraulic pump to flow into the rod-side oil chamber of the leveling cylinder 23, contracts the leveling cylinder 23, and raises the leveling arm 3A.
- the controller 50 causes the operating oil in the rod-side oil chamber of the leveling cylinder 23 to flow out, extends the leveling cylinder 23, and lowers the leveling arm 3A.
- the screed lift cylinder 24 is a hydraulic cylinder for lifting the screed 3.
- the screed lift cylinder 24 has a cylinder portion connected to the tractor 1 and a rod portion connected to the rear end portion of the leveling arm 3A.
- the controller 50 causes hydraulic fluid discharged by the hydraulic pump to flow into the rod-side oil chamber of the screed lift cylinder 24 .
- the screed lift cylinder 24 is contracted, the rear end portion of the leveling arm 3A is lifted, and the screed 3 is lifted.
- the controller 50 allows the hydraulic oil in the rod-side oil chamber of the screed lift cylinder 24 to flow out.
- the screed lift cylinder 24 is extended by the weight of the screed 3, the rear end portion of the leveling arm 3A is lowered, and the screed 3 is lowered.
- a mold board 43 is attached to the front of the screed 3 .
- the mold board 43 is configured to adjust the amount of pavement material PV staying in front of the screed 3 .
- the pavement material PV reaches under the screed 3 through the gap between the lower end of the mold board 43 and the roadbed BS.
- the screed 3 is provided with a left front tamper 25L, a right front tamper 25R, a left rear tamper 26L, and a right rear tamper 26R (hereinafter collectively referred to as tampers 25 and 26).
- the left front screed 30L finishes the road surface tamped and flattened by the left front tamper 25L.
- the front right screed 30R finishes the road surface tamped and flattened by the front right tamper 25R.
- the left rear screed 31L finishes the road surface tamped and flattened by the left rear tamper 26L.
- the right rear screed 31R finishes the road surface tamped and flattened by the right rear tamper 26R.
- the tampers 25 and 26 vertically move tamper edges (not shown) via a partially eccentric tamper shaft (not shown) by rotation of a motor (not shown) provided on the screed 3 . Thereby, the tampers 25 and 26 compact the road surface.
- the screed 3 is provided with a left front vibrator 27L, a right front vibrator 27R, a left rear vibrator 28L, and a right rear vibrator 28R (hereinafter collectively referred to as vibrators 27 and 28).
- the left front screed 30L is vibrated by the left front vibrator 27L
- the right front screed 30R is vibrated by the right front vibrator 27R
- the left rear screed 31L is vibrated by the left rear vibrator 28L
- the right rear screed 31R is vibrated by the right rear vibrator 28R.
- Vibrators 27 and 28 are vibration devices for compacting the paved surface.
- the vibrators 27, 28 are eccentric vibrators driven by hydraulic motors.
- the vibrator may be driven by an electric motor or may be a linear vibrator.
- the vibration frequency of this embodiment is changed according to the type of pavement material and the like.
- the compaction degree measuring instrument 8 is provided behind the screed 3 (-X direction).
- the compaction measuring instrument 8 of this embodiment is directly connected to the screed 3 .
- the compaction measuring instrument 8 may be provided with wheels (not shown). As a result, the road surface for which the degree of compaction is to be measured can be changed according to the progress of the asphalt finisher 100 .
- the compaction degree measuring instrument 8 measures the degree of compaction (hereinafter also referred to as the degree of compaction), which is the ratio of the pavement spread over the road surface to the voids.
- the compaction degree measuring instrument 8 has, for example, a positive electrode and a negative electrode arranged on the bottom surface of the compaction degree measuring instrument 8 . Then, based on the magnetic field generated between the positive electrode and the negative electrode and the electromagnetic characteristics of the pavement material, the degree of compaction of the pavement material is measured.
- this embodiment shows an example of the method of measuring the degree of compaction of the pavement material laid down, and any method may be used regardless of the well-known method.
- a plurality of compaction degree measuring instruments 8 of this embodiment are provided in the vehicle width direction (Y-axis direction).
- the asphalt finisher 100 according to the present embodiment is arranged so as to measure the entire widthwise area of the screed 3 in order to measure the degree of compaction of the pavement material PV spread evenly by the screed 3 .
- six compaction degree measuring instruments 8 are provided. When each of the compaction degree measuring instruments 8 is indicated, they are expressed as compaction degree measuring instruments 8_1 to 8_6.
- the number of compaction measuring instruments 8 to be installed is not limited to six, but an appropriate number is installed according to the length of the pavement material spread by the asphalt finisher 100 in the vehicle width direction. be done.
- the compaction degree measuring instruments 8 are installed with a gap therebetween.
- the present embodiment is not limited to the method of installing the compaction degree measuring instruments 8 with a gap between them.
- the controller 50 is a control device that controls the asphalt finisher 100 .
- the controller 50 is configured by a microcomputer including a CPU, a memory, a nonvolatile storage device, etc., and is mounted on the tractor 1 .
- Each function of the controller 50 is implemented by the CPU executing a program stored in the nonvolatile storage device.
- each function of the controller 50 may be configured by hardware or firmware.
- the communication device 53 is configured to be able to control communication between the asphalt finisher 100 and devices outside the asphalt finisher 100 .
- a communication device 53 according to this embodiment is installed in front of the driver's seat 1S and controls communication via a mobile phone communication network, a short-range wireless communication network, a satellite communication network, or the like.
- the GPS module 54 is an example of a GNSS (Global Navigation Satellite System) module, and receives position information indicating the results of two-dimensional positioning (two-dimensional positioning) by the GPS (Global Positioning System).
- the position information includes information representing the position of the asphalt finisher 100 in latitude and longitude.
- GPS is used as a method of acquiring position information, but the method of acquiring position information is not limited, and other well-known methods may be used.
- a space recognition device 51 is attached to the tractor 1.
- the space recognition device 51 is configured to acquire information about the space around the asphalt finisher 100 and output the acquired information to the controller 50 .
- the space recognition device 51 according to this embodiment includes a forward monitoring device 51F and a rearward monitoring device 51B.
- the front monitoring device 51F is configured to monitor the front of the asphalt finisher 100.
- the front monitoring device 51F is a LIDAR whose monitoring range RF is the space in front of the tractor 1, and is attached to the center of the upper surface of the tractor 1 at the front end. Note that the forward monitoring device 51F may be attached to another portion of the asphalt finisher 100.
- FIG. 1 A block diagram illustrating an exemplary computing environment in accordance with the present disclosure.
- the rear monitoring device 51B is configured to monitor the rear of the asphalt finisher 100.
- the rear monitoring device 51B is a LIDAR whose monitoring range RB is the space behind the screed 3, and is attached to the guide rail 1G that functions as a handrail for the operator of the asphalt finisher 100.
- the rearward monitoring device 51B may be attached to the lower portion of the driver's seat 1S, or may be attached to another portion of the asphalt finisher 100.
- the space recognition device 51 may include a side monitoring device configured to monitor the side of the asphalt finisher 100 .
- the side monitoring device may be attached to the left end of the upper surface of the tractor 1 in front of the rear wheel 5 as a LIDAR whose monitoring range is the space on the left side of the tractor 1 .
- the side monitoring device may be attached to the right end of the upper surface of the tractor 1 in front of the rear wheels 5 as a LIDAR whose monitoring range is the space to the right of the tractor 1, for example.
- LIDAR measures the distance between more than 1 million points within the monitoring range and LIDAR.
- the forward monitoring device 51F and the rearward monitoring device 51B may be a monocular camera, a stereo camera, a millimeter wave radar, a laser radar, a laser scanner, a range image camera, a laser range finder, or the like. The same is true for the side monitoring device.
- LIDAR an example using LIDAR as an example of the space recognition device 51 will be described.
- this embodiment does not limit the space recognition device 51 to LIDAR.
- any space recognition device capable of recognizing a space with the asphalt finisher 100 as a reference may be used.
- the monitoring range RF of the forward monitoring device 51F desirably includes the roadbed BS.
- the monitoring range RF has a width greater than the width of the roadbed BS.
- the monitoring range RB of the rear monitoring device 51B desirably includes the new pavement NP.
- the monitoring range RB has a width greater than the width of the new pavement NP.
- the measurement information detected by the space recognition device 51 is transmitted to the controller 50 .
- the controller 50 may automatically steer the asphalt finisher 100 based on the received measurement information, or may issue a warning or the like to the driver.
- this embodiment does not limit the mode of providing the compaction degree measuring instrument 8 to the asphalt finisher 100 to the mode of directly connecting it to the screed 3 .
- FIGS. 2A and 2B are diagrams showing an asphalt finisher 100, which is an example of a road machine according to a modification. Specifically, FIG. 2A is a left side view and FIG. 2B is a top view. In the modification shown in FIGS. 2A and 2B, the compaction measuring instrument 8 and the tractor 1 are connected via frame members 81A and 81B.
- the frame member 81B extends from the tractor 1 rearward in the traveling direction (X-axis negative direction side).
- the frame member 81A is connected to the rear end (X-axis negative direction side) of the frame member 81B.
- the frame member 81A extends in the vehicle width direction (Y-axis direction) of the asphalt finisher.
- Six compaction degree measuring instruments 8_1 to 8_6 are provided at predetermined intervals on the frame member 81A. Wheels (not shown) may be provided on the six compaction degree measuring instruments 8_1 to 8_6 or on the frame member 81A. With this configuration, the compaction degree measuring instrument 8 is towed according to the movement of the asphalt finisher 100 .
- the frame member 81A is not limited to extending from the tractor 1, and may extend from the leveling arm 3A.
- the present embodiment and modifications show one mode of connection of the compaction measuring instruments 8_1 to 8_6, and other modes of connection may be used.
- FIG. 3 is a block diagram showing a configuration example of the controller 50 and devices connected to the controller 50. As shown in FIG.
- the controller 50 includes six compaction degree measuring instruments 8_1 to 8_6, a GPS module 54, a forward monitoring device 51F, a rearward monitoring device 51B, an in-vehicle display device 52, and a communication device. 53 and .
- the controller 50 includes a readable/writable (not shown) non-volatile storage medium, and includes a storage unit 50l for storing various information in the storage medium.
- the storage unit 50l stores design information.
- the design information indicates information set in advance for each predetermined item in order to pave with asphalt.
- the design information includes, for example, a set length indicating the length of the road surface on which the asphalt is laid, a set width indicating the width of the road surface on which the asphalt is laid, a set thickness indicating the planned thickness of the asphalt laid, and the road surface It contains a set compaction level that indicates the compaction level of the asphalt that is to be laid on the site.
- the controller 50 includes, as functional elements, an acquisition unit 50a, a thickness calculation unit 50b, a compaction degree calculation unit 50c, a volume calculation unit 50d, a weight calculation unit 50f, a planned weight estimation unit 50g, and a control correction unit. 50h, a communication control unit 50i, an information generation unit 50j, and a display control unit 50k.
- the functional elements described above are shown separately for convenience of explanation, but they do not have to be physically separated, and wholly or partially share common software components or hardware. It may be composed of hardware components.
- the acquisition unit 50a acquires measurement information from various sensors. For example, the acquisition unit 50a acquires measurement information from the forward monitoring device 51F and the rearward monitoring device 51B.
- the acquisition unit 50a acquires the degree of compaction from each of the degree of compaction measuring instruments 8_1 to 8_6. Furthermore, the acquisition unit 50 a acquires position information from the GPS module 54 .
- the thickness calculation unit 50b calculates the thickness of the pavement NP newly installed on the road surface.
- the thickness calculator 50b according to the present embodiment calculates the distance in the Z-axis direction of the surface of the roadbed BS with reference to the asphalt finisher 100, which is indicated by the measurement information from the forward monitoring device 51F, and the distance from the rearward monitoring device 51B.
- the thickness of the pavement NP (from the surface of the roadbed BS to the thickness of the pavement NP the vertical distance to the surface).
- the thickness calculation unit 50b may calculate the thickness of the pavement NP from position coordinates on the three-dimensional coordinate system.
- the three-dimensional coordinate system used for calculating the thickness of the pavement NP is, for example, the world geodetic system.
- the world geodetic system is a three-dimensional orthogonal XYZ system with the origin at the center of gravity of the earth, the X axis in the direction of the intersection of the Greenwich meridian and the equator, the Y axis in the direction of 90 degrees east longitude, and the Z axis in the direction of the North Pole. coordinate system.
- the thickness calculator 50b derives the height of the surface of the roadbed BS in the reference coordinate system through coordinate conversion between the local coordinate system and the reference coordinate system regarding the forward monitoring device 51F. Further, the thickness calculator 50b derives the height of the surface of the new pavement NP in the reference coordinate system through coordinate conversion between the local coordinate system and the reference coordinate system regarding the rearward monitoring device 51B. Then, the thickness calculator 50b calculates the thickness of the pavement NP from the difference in surface height.
- the thickness calculation unit 50b calculates the thickness of the pavement NP for each predetermined region described later using the calculation method described above.
- the thickness calculation method is not limited to the method using the forward monitoring device 51F and the rearward monitoring device 51B, and the thickness may be calculated by another method.
- the thickness calculator 50b may calculate the thickness based on the difference between the height of the road surface before leveling and the bottom surface of the screed 3, which is measured by a measuring instrument.
- the compaction degree calculation unit 50c calculates the degree of compaction spread evenly by the asphalt finisher 100 for each region corresponding to each of the compaction degree measuring instruments 8_1 to 8_6. Calculate the average value of the proportion of pavement material in the space composed of and (hereinafter also referred to as compaction degree).
- FIG. 4 is a diagram exemplifying the average compaction degree for each predetermined area calculated by the compaction degree calculation unit 50c. As shown in FIG. 4, in the vehicle width direction (Y-axis direction), regions 701 to 706 are separated for each length to which compaction degree measuring instruments 8_1 to 8_6 are assigned. The length that divides the regions in the traveling direction (X-axis direction) is a predetermined length and is determined according to the embodiment.
- the predetermined range indicates an appropriate range as the degree of compaction of the pavement material spread evenly by the asphalt finisher 100 .
- the predetermined range shall be determined according to the type of pavement material. In this embodiment, various controls are performed according to the average compaction degree for each calculated area.
- the volume calculation unit 50d calculates the volume of pavement material spread on the actually leveled road surface (an example of the leveled road surface).
- the volume calculation unit 50d of the present embodiment calculates the volume of the pavement material spread evenly based on the thickness of the pavement NP calculated by the thickness calculation unit 50b, the construction distance, and the construction width.
- the completed distance may be calculated from the position information acquired by the acquisition unit 50a at the start of construction and the position information currently acquired by the acquisition unit 50a, or from the movement distance of the asphalt finisher 100 acquired from a distance sensor or the like. can be calculated.
- the construction width may be the width of the screed 3 of the asphalt finisher 100, or the width of the road indicated in the design information stored in the storage unit 50l.
- the volume calculation unit 50d may derive the calculated volume as a combination of volumes for each predetermined region.
- the weight calculation unit 50f calculates the degree of compaction (degree of pavement material and voids) for each predetermined region calculated by the degree of compaction calculation unit 50c, and the leveled volume calculated by the volume calculation unit 50d. (combination of volumes for each predetermined area) and the weight of the pavement material used on the road surface on which the pavement material is evenly spread (an example of the leveled road surface) is calculated.
- the weight calculation unit 50f calculates the weight for each predetermined area from the degree of compaction for each predetermined area and the weight (specific gravity) of the pavement material per unit volume. Then, the weight calculation unit 50f calculates the weight of the pavement material used in construction from the weight of each predetermined area and the combination of the volume of each predetermined area calculated by the volume calculation unit 50d. .
- the expected weight estimation unit 50g estimates the weight of the pavement material that the asphalt finisher 100 will actually use (hereinafter also referred to as estimated weight).
- the planned weight estimation unit 50g calculates the difference (for example, the ratio) is calculated. Further, the planned weight estimating unit 50g calculates the current Estimated weight RW2 of pavement material estimated to be used on the road surface to be constructed from the position to the construction end position is calculated.
- the estimated weight RW2 of the pavement material that is estimated to be actually used can be calculated by the following formula (1). Note that the calculation method is shown as an example, and other methods may be used.
- the control correction unit 50h corrects the control of the screed 3 based on the average compaction degree for each predetermined area calculated by the compaction degree calculation unit 50c.
- the control correction unit 50h corrects the control of the screed 3 so as to suppress the unevenness of the degree of compaction.
- the control correction unit 50h determines that the screed 3 corresponding to the region Control is performed to increase the number of strokes of the tampers 25 and 26 (increase the number of rotations of the motor). In addition, when the compaction degree calculation unit 50c continues to produce a region in which the degree of compaction is higher than a predetermined range in the traveling direction (X-axis direction), the control correction unit 50h determines whether the screed 3 corresponding to the region Control is performed to reduce the number of times the tampers 25 and 26 poke (reduce the number of revolutions of the motor).
- control of the screed 3 is not limited to the tampers 25 and 26.
- control corrector 50h may control the vibrators 27 and 28. FIG.
- the control correction unit 50h determines that the screed 3 corresponding to the region Control is performed to increase the vibration frequency of the vibrators 27 and 28 .
- the control correction unit 50h determines whether the screed 3 corresponding to the region Control is performed to reduce the vibration frequency of the vibrators 27 and 28 .
- control correction section 50h may adjust the leveling height of the screed 3.
- the leveling height of the screed 3 is controlled by the control correction unit 50h to move the leveling arm 3A upward or downward.
- the leveling thickness can be increased by raising the leveling arm 3A, and the leveling thickness can be decreased by lowering the leveling arm 3A.
- the control correction unit 50h determines that the screed 3 corresponding to the region Control is performed to increase the number of strokes of the tampers 25 and 26, and control is performed to retract the leveling cylinder 23 and lower the leveling arm 3A.
- Control is performed to increase the number of strokes of the tampers 25 and 26, and control is performed to retract the leveling cylinder 23 and lower the leveling arm 3A.
- increasing the number of tampers 25 and 26 makes it easier for the pavement material to enter the lower surface of the screed, which increases the leveling thickness.
- the leveling thickness is maintained by lowering the leveling arm 3A. can do.
- control may be performed to increase the vibration frequency of the vibrators 27 and 28 of the screed 3 corresponding to the area concerned, and to contract the leveling cylinder 23 to raise the leveling arm 3A. In this case, if the frequency of the vibrators 27 and 28 of the screed 3 is increased, the pressing force of the lower surface of the screed against the pavement material will increase and the spread thickness will decrease. A smooth thickness can be maintained.
- control may be performed to increase the number of tampers 25 and 26 of the screed 3 corresponding to the area concerned and the frequency of vibrators 27 and 28 may be increased.
- the control correction unit 50h determines whether the screed 3 corresponding to the region Control is performed to reduce the number of strokes of the tampers 25 and 26, and control is performed to extend the leveling cylinder 23 and raise the leveling arm 3A. In this case, if the tampers 25 and 26 are reduced, it becomes difficult for the pavement material to enter the underside of the screed, and the leveling thickness is also reduced.
- the leveling thickness is maintained by raising the leveling arm 3A. can do. As a result, the amount of pavement material to be spread and leveled can be reduced, and the degree of compaction can be reduced. As a result, the leveling thickness can be kept constant even if the degree of compaction is reduced.
- control may be performed to reduce the vibration frequency of the vibrators 27 and 28 of the screed 3 corresponding to the area concerned, and to retract the leveling cylinder 23 to lower the leveling arm 3A. In this case, if the vibration frequency of the vibrators 27 and 28 of the screed 3 is reduced, the pressing force of the lower surface of the screed against the pavement material will be reduced, and the spread thickness will increase. A smooth thickness can be maintained. Further, control may be performed to reduce the number of tampers 25, 26 of the screed 3 corresponding to the area concerned, and the vibration frequency of the vibrators 27, 28 may be reduced.
- the control correction unit 50h determines that regions with a degree of compaction lower than a predetermined range continue to exist in the traveling direction in the regions 721 to 724. Therefore, the control correcting unit 50h performs a control combining an increase in the number of strokes of the tampers 25 and 26, an increase in the vibration frequency of the vibrators 27 and 28, and control to raise or lower the leveling arm 3A. As a result, the road surface to be laid from now on has an increased degree of compaction and is laid with a uniform thickness.
- the information generation unit 50j calculates the average value of the degree of compaction for each predetermined area calculated by the degree of compaction calculation unit 50c (one aspect of the degree of the pavement material and the gap), and the degree of compaction Position information (an example of position information) indicating the area where the average value is measured is associated with compaction information to generate compaction information.
- the generated compaction information may include image information.
- the compaction information may include information indicating the time when the screed 3 spreads evenly for each predetermined area.
- the information generator 50j generates a compaction degree distribution of the laid road.
- the position information (an example of the position information) indicating the area where the average value of the degree of compaction was measured
- the position information received from the GPS module 54 when the degree of compaction was measured and the A combination with relative position information up to the compaction degree measuring instrument 8 that measures the degree of compaction can be considered.
- the position information indicating the area where the degree of compaction was measured can be specified as the position according to the world geodetic system.
- the information generation unit 50j stores the generated compaction information in the storage unit 50l.
- the information generation unit 50j according to the present embodiment associates the set value (including the set compaction degree) for each predetermined area indicated by the design information with the average compaction degree measured in the area. memorize it. Thereby, in this embodiment, the construction result by the asphalt finisher 100 can be managed.
- the communication control unit 50i transmits and receives information to and from external devices.
- the communication control unit 50i transmits compaction information generated by the information generation unit 50j and a rolling compaction instruction based on the compaction information to the road roller 500 described later.
- the communication control unit 50i sends a rolling compaction instruction to the road roller 500 including a movement route for adjusting the degree of compaction of the road surface based on the compaction information generated by the information generation unit 50j. You may send.
- the communication control unit 50i uses the compaction degree associated with the road surface position information (which may be position information indicating a predetermined area) based on the compaction information generated by the information generation unit 50j. 500, and the road roller 500 may generate a movement path or the like for rolling compaction control based on the degree of compaction associated with the received position information.
- the communication control unit 50i transmits to the management device 400 the degree of compaction associated with the position information (for example, indicating a predetermined area) of the road surface based on the compaction information generated by the information generation unit 50j. You may In this case, the management device 400 may generate a moving path for the road rollers 500 to control rolling pressure based on the received degree of compaction, and then transmit it to the road rollers 500 . Further, the rolling pressure instruction transmitted to the road roller 500 may include the required rolling pressure associated with the road surface position information.
- the communication control unit 50i instructs the management device 400 to send an instruction to adjust the amount of supply of The instruction for the adjustment depends on the mode of implementation, and may be an instruction for adjusting the amount supplied to the weight RW2 of the pavement material estimated to be actually used.
- the communication control unit 50i receives road roller compaction information (an example of the degree of road roller compaction) after the road roller 500 rolls the road surface.
- the road roller compaction information is the correspondence between the position indicating the predetermined area after the road roller 500 rolls the road surface and the average value of the degree of compaction measured after the road surface has been rolled by the road roller 500. Includes attachments.
- the road roller compaction information may be information indicating an average value of compaction degrees measured for each predetermined area by a compaction degree measuring device (not shown) provided in the road roller 500 .
- the road roller compaction information is received from the road roller 500 .
- the road roller compaction information may include the rolling force associated with the road surface position information.
- the road roller compaction information may be information indicating the result of measurement by a compaction measuring device operated by the operator after the road roller 500 is rolled.
- the communication control unit 50i receives the road roller compaction information from the communication device owned by the worker.
- the information generation unit 50j Based on the road roller compaction information and the compaction information, the information generation unit 50j generates information indicating the average value of the degree of compaction for each predetermined area evenly spread by the asphalt finisher 100 and the road roller 500 construction management information (hereinafter referred to as a construction information management sheet) representing information indicating the average value of the degree of compaction for each predetermined area after being compacted by .
- the construction information management sheet will be described later.
- the display control unit 50k displays various information on the in-vehicle display device 52.
- the display control unit 50k displays the construction information management sheet generated by the information generation unit 50j.
- FIG. 5 is a diagram showing a configuration example of the construction management system SYS according to this embodiment.
- the construction management system SYS is mainly composed of an asphalt finisher 100, a dump truck 200, a plant 300, a management device 400, a road roller 500, and a portable information terminal 600.
- the plant 300 is an example of paving material production equipment.
- the plant 300 mainly has a mixer 301, a trolley 302, a hot silo 303, and the like.
- the mixer 301 is a device for uniformly mixing aggregate, filler (stone powder), asphalt, and the like.
- the trolley 302 is a device for conveying the mixture discharged from the mixer 301 to the hot silo 303 .
- the hot silo 303 is a device for keeping warm and storing the mixture produced by the mixer 301 .
- a controller 311, a space recognition device 312, and a communication device 313 are installed in the plant 300.
- a controller 311 is a control device installed in the plant 300 .
- the controller 311 is a computer including a CPU, a volatile memory device, and a non-volatile memory device, and is placed in a building attached to the plant 300 .
- the controller 311 is implemented by the CPU executing a program stored in a nonvolatile storage device.
- the communication device 313 is configured to control communication between the plant 300 and external equipment.
- the communication device 313 controls wireless communication with the communication device 204 mounted on the dump truck 200 . Furthermore, the communication device 313 controls wireless communication with the management device 400 .
- the controller 311 controls movements of the mixer 301, the trolley 302, the hot silo 303, and the like. Additionally, the controller 311 manages the pavement produced by the plant 300 .
- controller 311 recognizes the dump truck 200 based on information from the space recognition device 312 .
- the space recognition device 312 is configured to be able to monitor the state of the dump truck 200 loaded with pavement material in the plant 300 .
- the space recognition device 312 is, for example, a monocular camera, stereo camera, millimeter wave radar, ultrasonic sensor, laser radar, LIDAR, or the like.
- the space recognition device 312 may identify the dump truck 200 by recognizing characters displayed on the license plate based on the unevenness on the surface of the license plate of the dump truck 200.
- the controller 311 can determine the position, shape, and type of the dump truck 200 using the space recognition device 312 .
- the controller 311 receives information regarding the supply of pavement material to the dump truck 200 from the management device 400 .
- the controller 311 receives instructions from the management device 400 to change the amount of pavement material used in construction. Based on the instruction, the controller 311 controls to supply pavement material to the dump truck 200 identified by the space recognition device 312 .
- the dump truck 200 is an example of a transport vehicle that transports pavement material supplied into the hopper 2 of the asphalt finisher 100 .
- Dump truck 200 is a dedicated dump truck for transporting pavement material with movable bumpers.
- the dump truck 200 includes a driver's cab 201 and a loading platform 202 . Also, the dump truck 200 is provided with a controller 203 and a communication device 204 near the cab 201 .
- the controller 203 may transmit and receive information to and from the communication device 53 of the asphalt finisher 100 via the communication device 204 . Also, the controller 203 may transmit and receive information to and from the communication device 313 of the plant 300 via the communication device 204 .
- the road roller 500 has a rolling pressure roller 502 pivotally attached to the front part of the vehicle body 501 and a odometer 503 attached to the axle of the rolling pressure roller 502 .
- the road roller 500 reads the rotation speed of the axle of the compaction roller 502 by the odometer 503, and calculates the moving distance of the vehicle body 501 based on the rotation speed of the axle.
- the road roller 500 pivotally attaches another pressure roller 504 to the rear portion of the vehicle body 501 .
- the road roller 500 includes a controller 511 in the driving operation unit 510 .
- the road roller 500 also includes a GPS module 512 and a communication device 513 .
- the GPS module 512 is an example of a GNSS (Global Navigation Satellite System) module, and receives position information indicating the results of two-dimensional positioning by the GPS (Global Positioning System).
- the position information includes information representing the position of the asphalt finisher 100 in latitude and longitude.
- GPS is used as a method of acquiring position information, but the method of acquiring position information is not limited, and other well-known methods may be used.
- the communication device 513 controls wireless communication with the communication device 53 of the asphalt finisher 100 .
- the communication device 513 receives, from the communication device 53 of the asphalt finisher 100, compaction information indicating the average compaction degree for each predetermined area of the road surface to be constructed.
- the controller 511 controls the movement of the vehicle body 12 and rolls the road surface with front and rear pressure rollers 502 and 504 .
- the controller 511 of the embodiment may automatically control rolling compaction of the road surface.
- the controller 511 rolls the road surface to be constructed based on the roller design information indicating the road surface rolling range and the position information of the road roller 500 received by the GPS module 512 .
- the controller 511 rolls the road surface based on the received compaction information. For example, based on the compaction information, the controller 511 increases the number of rolling compactions for areas where the compaction degree is less than a predetermined range, and reduces the number of rolling compactions for areas where the compaction degree is greater than the predetermined range. This makes it possible to adjust the degree of compaction. Also, the degree of compaction may be adjusted by controlling the rolling pressure.
- the road roller 500 may be provided with a compaction degree measuring device (not shown) in the same manner as the asphalt finisher 100 described above. As with the asphalt finisher 100, it is conceivable to provide a plurality of compaction measuring instruments in the vehicle width direction.
- the road roller compaction information indicating the average value of the degree of compaction measured after construction for each predetermined area by the compaction degree measuring instrument is provided. , may be transmitted to the asphalt finisher 100 via the communication device 513 .
- the road roller compaction information may be transmitted from the worker's communication device as a result of measurement by the worker with the compaction degree measuring device after the road roller 500 rolls.
- the present embodiment is not limited to a method in which the information generation unit 50j of the asphalt finisher 100 generates only compaction information as information to be transmitted to the road roller 500.
- the information generation unit 50j may generate a movement route in which the number of times of rolling compaction is varied for each point on movement so as to suppress unevenness of the pavement material.
- the communication control unit 50i transmits the generated moving route to the road roller 500.
- FIG. The road roller 500 performs steering control according to the received moving route. As a result, it is possible to suppress unevenness of the pavement material on the road surface.
- this embodiment does not limit the mode of the road roller 500, and may be composed of a plurality of rollers including tire rollers.
- the process shown by the road roller 500 shown in the present embodiment may be performed by any one of the plurality of vehicles.
- the portable information terminal 600 is, for example, a device possessed by a worker riding on the tractor 1, a worker working around the asphalt finisher 100, or a manager of the construction site.
- the portable information terminal 600 may be attachable to a mounting bracket provided on the driver's seat 1S of the asphalt finisher 100.
- the portable information terminal 600 may be, for example, a portable device such as a tablet PC or a smart phone.
- the portable information terminal 600 may display information received from the asphalt finisher 100 or the management device 400 (for example, a construction information management sheet).
- the controller 50 can transmit and receive information to and from other devices via the communication device 53 .
- the controller 50 recognizes the surroundings of the asphalt finisher 100 based on measurement information from the forward monitoring device 51F and the rearward monitoring device 51B. Furthermore, the controller 50 performs various controls based on the degree of compaction of the pavement measured by the compaction degree measuring instrument 8 .
- controller 50 transmits and receives information to and from equipment that constitutes the construction management system SYS via the communication device 53 .
- the controller 50 transmits an instruction to the management device 400 via the communication device 53 to adjust the supply amount of pavement material.
- the controller 50 transmits compaction information or a movement route to the road roller 500 via the communication device 53 .
- the controller 50 receives road roller compaction information indicating the average value of the degree of compaction for each predetermined area after the road roller 500 rolls from the road roller 500 or the operator's communication device. Thereby, the controller 50 generates a construction information management sheet (see FIG. 8).
- the controller 50 transmits the generated construction information management sheet to the management device 400.
- the management device 400 performs overall control of the construction management system SYS according to this embodiment.
- the management device 400 may be a computer including a CPU, a volatile memory device, and a non-volatile memory device, and may be a server having a communication unit capable of transmitting and receiving information via a network.
- the management device 400 also includes a storage device 401 .
- the management device 400 transmits and receives information to and from the asphalt finisher 100 . For example, when the controller 50 determines that the weight of the pavement material estimated to be actually used calculated by the asphalt finisher 100 deviates from the weight of the pavement material to be used indicated in the design information. Also, the management device 400 receives an instruction to adjust the supply amount of pavement material from the asphalt finisher 100 .
- the management device 400 transmits to the communication device 313 of the plant 300 an instruction to change the amount of pavement material used in construction. Thereby, the management device 400 can adjust the pavement material to be supplied to the asphalt finisher 100 .
- the management device 400 stores the construction information management sheet in the storage device 401 when the construction information management sheet is transmitted from the asphalt finisher 100 .
- the manager manages the construction information by this.
- the management device 400 may transmit the received construction information management sheet to the portable information terminal 600.
- the worker can refer to the construction information management sheet, and can confirm detailed construction results.
- this embodiment does not limit the transmission of the construction information management sheet to the portable information terminal 600 from the management device 400 .
- the communication device 53 of the asphalt finisher 100 may transmit the construction information management sheet to the portable information terminal 600 .
- FIG. 6 is a diagram showing an asphalt finisher 100, a dump truck 200, and a road roller 500, which are examples of road machinery according to this embodiment.
- 800A is a left side view
- 800B is a top view.
- FIG. 6 shows an example in which the dump truck 200 approaches the asphalt finisher 100 while retreating.
- the dump truck 200 is in contact with the asphalt finisher 100 from the traveling direction (+X-axis positive direction) side.
- the dump truck 200 supplies pavement material to the hopper 2 of the asphalt finisher 100 .
- the controller 50 of the asphalt finisher 100 transmits control commands to the communication device 204 of the dump truck 200 via the communication device 53 .
- the controller 203 of the dump truck 200 performs control according to the control command.
- the control command includes, for example, a control command for steering to position the loading platform 202 of the dump truck 200 at a specified position on the asphalt finisher 100 .
- Other control commands include, for example, a control command instructing the dump truck 200 to reverse or stop in order to bring the rear wheels of the dump truck 200 into contact with the rollers 2b.
- the controller 50 of the asphalt finisher 100 transmits compaction information to the communication device 513 of the road roller 500 via the communication device 53 during construction.
- the controller 511 of the road roller 500 performs rolling pressure control according to the compaction information for each predetermined area of the road surface.
- the compaction information indicates the degree of compaction of pavement material for each predetermined area.
- the controller 511 of the road roller 500 performs control such as changing the number of times of rolling based on the average compaction degree of a predetermined area including the current position.
- the width of the compaction measuring instrument 8 of the asphalt finisher 100 and the width of the road roller 500 are different. Therefore, the controller 511 performs rolling compaction control in consideration of the width. For example, the average value of the degree of compaction for each area indicated by the width of the road roller 500 may be recalculated, and rolling pressure control or the like may be performed based on the result of the recalculation.
- controller 511 of the load roller 500 may receive the movement route instead of the compaction information.
- the controller 511 performs steering control according to the movement path, thereby realizing rolling compaction control that takes into consideration the degree of compaction for each predetermined area.
- FIG. 7 is a diagram showing the condition of the road surface on which construction is performed by the asphalt finisher 100 according to this embodiment.
- the road surface to be constructed includes the first straight section SC1 and the widening section SC2. and a second straight section SC3.
- the widened section SC2 also includes a bus stop section SC4 surrounded by a dashed line.
- the design information includes the road width W1 and length L1 of the first straight section SC1, the road width W1 + W2 and length L2 + L3 of the widening section SC2 including the road width W2 of the bus stop section SC4, and the road width W3 and length of the second straight section SC3. and L4.
- the design information also includes lengths L11 and L12 of sections where the road width changes in the widening section SC2.
- the design information includes set thickness.
- the controller 50 according to this embodiment can specify the preset volume for each section based on the design information.
- the controller 50 can also specify the set weight of the pavement material to be used for each section.
- the present embodiment is not limited to the method of calculating the set weight of pavement material to be used for each section, and the design information may include the set volume and set weight for each section.
- the weight calculator 50f of the controller 50 of the asphalt finisher 100 calculates the volume of the first straight section SC1 based on the volume of the first straight section SC1. , the weight of the pavement material actually used in the first straight section SC1 is calculated.
- the planned weight estimation unit 50g of the controller 50 calculates the weight of the pavement material used in the first straight section SC1 calculated by the weight calculation unit 50f and the pavement material scheduled to be used in the first straight section SC1 indicated in the design information. It is determined whether or not there is a difference between the set weight of . When it is determined that there is a difference, the planned weight estimation unit 50g calculates the estimated weight of the pavement material that is estimated to be actually used in the widening section SC2 and the second straight section SC3. Since the calculation method is as described above, the explanation is omitted.
- the communication control unit 50i determines the estimated weight.
- An instruction to change the weight of the pavement material supplied to the widened section SC2 and the second straight section SC3 estimated to be actually used by the estimation unit 50g is transmitted to the management device 400. As a result, it is possible to suppress the deviation of the pavement material supplied during construction.
- the planned weight estimating unit 50g considers the adjustment result and then considers the road surface to be paved ( For example, the estimated weight of the pavement material estimated to be actually used in the widened section SC2 and the second straight section SC3) may be calculated.
- a dashed line G2 is the position where the second dump truck 200 starts to supply pavement material
- a dashed line G3 is the position where the third dump truck 200 starts to supply pavement material
- the dashed-dotted line G4 is the position where the supply of pavement material by the fourth dump truck 200 is started.
- the communication control unit 50i instructs the management device 400 to An instruction may be sent every 200 to change the position at which paving material supply is started. As a result, the management device 400 instructs the dump truck 200 to change the destination point on the road surface.
- the information generation unit 50j of the controller 50 of the asphalt finisher 100 according to the present embodiment is stored in the storage unit 50l (compaction (measured by the degree measuring instrument 8), the average value of the degree of compaction, and the average value of the degree of compaction after construction in the storage unit 50l.
- FIG. 8 is a diagram exemplifying a construction information management sheet generated by the information generation unit 50j according to this embodiment.
- the construction information management sheet includes, as basic information, the date and time of construction, the construction site, and the machine number of the construction machine (asphalt finisher 100).
- construction conditions include construction distance and construction width.
- setting information and setting conditions include average set thickness, average measured thickness, average set porosity, average measured porosity, set amount of pavement material, and amount of pavement material actually used.
- the average set thickness, average set porosity, and set pavement material amount are information derived from the design information described above.
- the average measured thickness, the average measured porosity, and the amount of pavement material actually used are information measured after construction by the asphalt finisher 100 .
- the information generation unit 50j inputs character information based on the measured information and the design information for each of the items described above. This can reduce the burden on the operator.
- the construction information management sheet includes a column (AF measurement result column) 861 showing information indicating the average value of the degree of compaction for each predetermined area spread evenly by the asphalt finisher 100, and a column 861 for compaction by the road roller 500. and a column (road roller measurement result column) 862 showing the average value of the degree of compaction for each predetermined area after the rolling.
- AF measurement result column and the road roller measurement result column indicate, for example, 200 m road surface information. That is, a plurality of construction information management sheets may be generated according to the construction distance.
- the AF measurement result column 861 displays information indicating the degree of compaction for each predetermined area indicated by the compaction information. Specifically, the AF measurement result column 861 shows areas 811 to 814 where the degree of compaction is lower than a predetermined range. Also, in the AF measurement result column 861, areas 821 and 822 where the degree of compaction is higher than the predetermined range are displayed. Further, in the AF measurement result column 861, the time (including the start time and the end time) at which the screed 3 spreads evenly is displayed for each predetermined area.
- the road roller measurement result column 862 information indicating the degree of compaction for each predetermined area indicated by the road roller compaction information received from the road roller 500 is displayed. Specifically, the road roller measurement result column 862 shows areas 851 and 852 where the degree of compaction after rolling by the road roller 500 is higher than a predetermined range. Areas 831 to 834 in the road roller measurement result column 862 indicate that the degree of compaction fell within a predetermined range due to rolling pressure by the road roller 500 .
- the worker can compare and confirm the construction result of the asphalt finisher 100 and the rolling compaction result of the road roller 500 .
- the quality of the asphalt is improved because the area where the degree of compaction is lower than the predetermined range is reduced as a result of the rolling compaction of the road roller 500 .
- construction information management sheet shown in this embodiment is shown as an example, and other aspects may be used.
- the construction information management sheet may not include the road roller measurement result column 862 .
- each item shown in the construction information management sheet is shown as an example, and other items may be included, for example.
- the information generation unit 50j according to the present embodiment may generate a construction information management sheet as image information, for example, as information that can be visually recognized by a person. Furthermore, the information generation unit 50j according to the present embodiment may generate a construction information management sheet as document information that can be read by a predetermined application.
- the information generation unit 50j generates the construction information management sheet (an example of construction management information) described above, thereby reducing the burden of creating documents on the worker.
- the construction information management sheet shows the processing results of the asphalt finisher 100 and the road roller 500 for each predetermined area. As a result, it is possible to generate a construction information management sheet that makes it easier for the worker to grasp the construction status, compared to the case where the worker manually creates the sheet.
- the information generation unit 50j stores the generated construction information management sheet in the storage unit 50l.
- the communication control unit 50i transmits the construction information management sheet generated by the information generation unit 50j to the management device 400.
- the management device 400 stores the received construction information management sheet in the storage device 401. Thereby, the management device 400 can manage construction results.
- This embodiment does not limit the method of generating the construction information management sheet by the asphalt finisher 100 .
- the asphalt finisher 100 may transmit compaction information and the like to the management device 400 and generate a construction information management sheet on the management device 400 side.
- compaction information is generated on the asphalt finisher 100 side based on information measured by the compaction degree measuring instrument 8 .
- this embodiment does not limit the generation of compaction information to the method performed on the asphalt finisher 100 side.
- the controller 50 of the asphalt finisher 100 transmits the signal received from the compaction degree measuring instrument 8 and the position information acquired from the GPS module 54 to the management device 400 via the communication device 53, and the management device 400
- compaction information may be generated.
- the management device 400 transmits the compaction information or the moving route generated based on the compaction information to the road rollers 500 .
- the asphalt finisher 100 having the above-described configuration can calculate the average compaction degree of the pavement material for each predetermined area of the road surface.
- various controls can be implemented to improve the quality of the road surface.
- the asphalt finisher 100 controls the screed 3 to adjust the degree of compaction, it is possible to improve the quality of the road surface.
- the asphalt finisher 100 transmits the compaction information or the movement path to the road roller 500, so that the road roller 500 can adjust the degree of compaction of the paving material based on the received compaction information or the movement path. . This makes it possible to improve the quality of the road surface.
- the compaction information measured by the compaction degree measuring instrument 8 can be used to calculate the weight of the pavement material actually used.
- the controller 50 can transmit an instruction to change the weight of the pavement material supplied to the asphalt finisher 100 to the management device 400 .
- cost reduction can be achieved.
- the burden on workers is reduced by generating construction management information that indicates the degree of compaction measured for each position where the asphalt finisher spreads the pavement evenly.
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Abstract
Description
形態に係る情報生成部50jは、設計情報で示された所定の領域ごとの設定値(設定締固め度を含む)と、当該領域で計測された締固め度の平均値と、を対応付けて記憶する。これにより、本実施形態では、アスファルトフィニッシャ100による施工結果を管理できる。
Claims (15)
- トラクタと、
前記トラクタの前側に設置されたホッパと、
前記ホッパ内の舗装材を前記トラクタの後側へ搬送するコンベアと、
前記コンベアによって搬送されて路面上に撒かれた舗装材を車幅方向に敷き拡げるスクリュと、
前記スクリュによって敷き拡げられた舗装材を前記スクリュの後側で敷き均すスクリード装置と、
前記路面上に敷き均された前記舗装材と空隙との割合である締固め度合いを測定する計測装置と、
を備える
アスファルトフィニッシャ。 - 前記締固め度合いと、前記舗装材が敷き均された敷均済路面の距離と、に基づいて敷均済路面に撒かれた前記舗装材の重量を算出する、
請求項1に記載のアスファルトフィニッシャ。 - 前記敷均済路面に撒かれた前記舗装材の重量と、前記敷均済路面で使用予定として定められていた前記舗装材の設定重量と、の間に差異が生じている場合に、当該差異と、施工予定の路面で使用予定として定められていた前記舗装材の設定重量と、に基づいて、施工予定の前記路面で使用すると推測される前記舗装材の推測重量を算出する、
請求項2に記載のアスファルトフィニッシャ。 - 管理装置に情報を送信する通信装置を、さらに備え、
前記舗装材の前記推測重量を、前記通信装置を介して、前記管理装置に送信する、
請求項3に記載のアスファルトフィニッシャ。 - 前記計測装置は、前記アスファルトフィニッシャの幅方向に複数設けられている、
請求項1に記載のアスファルトフィニッシャ。 - 前記締固め度合いに基づいて、前記スクリード装置の制御を補正する、
請求項1に記載のアスファルトフィニッシャ。 - 複数の前記スクリード装置のうち、前記締固め度合いが測定された位置に対応する前記スクリード装置の制御を補正する、
請求項6に記載のアスファルトフィニッシャ。 - 前記舗装材を敷き均した位置と、前記計測装置により計測された前記締固め度合いと、を対応付ける制御装置を、さらに備える、
請求項1に記載のアスファルトフィニッシャ。 - 前記制御装置によって対応付けられた、前記舗装材を敷き均した位置と、前記計測装置により計測された前記締固め度合いと、に基づいた指示を、前記スクリード装置で敷き均された後の前記路面を転圧するロードローラに送信する、
請求項8に記載のアスファルトフィニッシャ。 - 前記位置と、前記締固め度合いと、に基づいた指示として、前記締固め度合いに基づいて前記路面に転圧する回数を異ならせるための指示である、
請求項9に記載のアスファルトフィニッシャ。 - 前記路面の位置と、前記ロードローラによって転圧された後の前記舗装材と空隙との割合である締固め度合いと、を対応付けたロードローラ締固情報を受信する、
請求項9に記載のアスファルトフィニッシャ。 - 前記舗装材を敷き均した位置毎に測定された前記締固め度合いを、人が視認可能に表された施工管理情報として生成する、
請求項1に記載のアスファルトフィニッシャ。 - 前記舗装材を敷き均した後の前記路面を転圧するロードローラから、当該ロードローラが施工した後の前記路面の位置毎に測定された、前記舗装材と空隙との度合いを示したロードローラ締固め度合いを受信し、
前記ロードローラ締固め度合いに基づいて、前記ロードローラが転圧した後に、前記路面の位置毎に測定された前記舗装材と空隙との度合いをさらに含んだ前記施工管理情報を生成する、
請求項12に記載のアスファルトフィニッシャ。 - トラクタと、前記トラクタの前側に設置されたホッパと、前記ホッパ内の舗装材を前記トラクタの後側へ搬送するコンベアと、前記コンベアによって搬送されて路面上に撒かれた舗装材を車幅方向に敷き拡げるスクリュと、前記スクリュによって敷き拡げられた舗装材を前記スクリュの後側で敷き均すスクリード装置と、前記路面上に敷き均された前記舗装材と空隙との割合を示した締固め度合いを測定する計測装置と、情報を送信する通信装置と、を備えるアスファルトフィニッシャと、
情報を受信する管理装置と、を備え、
前記アスファルトフィニッシャは、
前記締固め度合いと、前記舗装材が敷き均された敷均済路面の距離と、に基づいて敷均済路面に撒かれた前記舗装材の重量を算出し、
前記敷均済路面に撒かれた前記舗装材の重量と、前記敷均済路面で使用予定として定められていた前記舗装材の設定重量と、の間に差異が生じている場合に、当該差異と、施工予定の路面で使用予定として定められていた前記舗装材の設定重量と、に基づいて、施工予定の前記路面で使用すると推測される前記舗装材の推測重量を算出し、
前記舗装材の前記推測重量を、前記通信装置を介して、前記管理装置に送信する、
路面舗装システム。 - トラクタと、前記トラクタの前側に設置されたホッパと、前記ホッパ内の舗装材を前記トラクタの後側へ搬送するコンベアと、前記コンベアによって搬送されて路面上に撒かれた舗装材を車幅方向に敷き拡げるスクリュと、前記スクリュによって敷き拡げられた舗装材を前記スクリュの後側で敷き均すスクリード装置と、前記路面上に敷き均された前記舗装材と空隙との割合である締固め度合いを測定する計測装置と、前記舗装材を敷き均した位置と、前記計測装置により計測された前記締固め度合いと、を対応付ける制御装置と、を備えたアスファルトフィニッシャと、
前記スクリード装置で敷き均された後の前記路面を転圧するロードローラと、を備え、
前記アスファルトフィニッシャは、前記制御装置によって対応付けられた、前記舗装材を敷き均した位置と、前記計測装置により計測された前記締固め度合いと、に基づいた指示を、前記ロードローラに送信する、
路面舗装システム。
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JPS6457110U (ja) * | 1987-10-06 | 1989-04-10 | ||
JPH0731908U (ja) * | 1993-04-09 | 1995-06-16 | 建設省東北地方建設局長 | 舗装工事車両におけるダンプカーの誘導装置 |
JP2012225153A (ja) * | 2011-04-18 | 2012-11-15 | Joseph Voegele Ag | アスファルト層を敷き均し締固めるためのシステムおよび方法 |
JP2018190228A (ja) * | 2017-05-09 | 2018-11-29 | 鹿島道路株式会社 | 車両誘導システム |
WO2020196540A1 (ja) | 2019-03-25 | 2020-10-01 | 住友建機株式会社 | 道路機械の表示装置 |
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JPS6457110U (ja) * | 1987-10-06 | 1989-04-10 | ||
JPH0731908U (ja) * | 1993-04-09 | 1995-06-16 | 建設省東北地方建設局長 | 舗装工事車両におけるダンプカーの誘導装置 |
JP2012225153A (ja) * | 2011-04-18 | 2012-11-15 | Joseph Voegele Ag | アスファルト層を敷き均し締固めるためのシステムおよび方法 |
JP2018190228A (ja) * | 2017-05-09 | 2018-11-29 | 鹿島道路株式会社 | 車両誘導システム |
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