JP3830231B2 - Soil improvement plant vehicle capable of traveling on the road and soil improvement method using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a soil-improving plant vehicle capable of traveling on the road and equipped with a soil-improving plant for modifying soil such as soft soil having a high water content, and a soil-improving method using the same.
[0002]
[Prior art]
  Improvements to ground, such as new construction of roads, playgrounds, airfields, building foundations, etc. or aging of existing ground may be involved. In addition to repairing the surface layer of asphalt and concrete, it is also possible to repair the ground surface. In these cases, it is often necessary to handle soil with a high water content, such as red soil, at the ground improvement work site. In addition, a lump that should be treated, such as stone for the roadbed layer, is generated below the surface layer of the pavement, and soft soil that cannot be reused as roadbed material or roadbed material is found under the roadbed layer. It may occur. Sludge may also be generated when tunnels are excavated by the shield method.
[0003]
  In the case of roads, for example, roadbed materials and roadbed materials made of stones of various sizes spread under asphalt or concrete usually have low moisture content, so they are treated appropriately after crushing. It can be reused by refilling the road again or using it for other purposes. However, the soft soil layer such as red soil existing under the roadbed material generally has a high water content and cannot be reused as it is. Conventionally, the disposal method for soft soil has been dumping as residual soil. However, in recent years it has become increasingly difficult to secure a place for legally dumping residual soil. In order to do so, it is necessary to transport the remaining soil over a long distance with a vehicle or the like. As a result, the cost of pavement work has increased, and problems have arisen from the viewpoint of the environment along roads and dumping sites that are transported by vehicles, making it impossible to easily adopt the dumping process.
[0004]
  Therefore, the remaining soil is also reused, that is, recycled and used to effectively use resources. In particular, the remaining soil has been modified with soil-improving materials such as emulsion and cement, and the modified soil has been reclaimed and reused for other purposes. However, the above soil conditioner is usually of a type that is transported to a construction site and deferred at that site. Residual soil generated at the construction site is transported to a soil improvement machine that has been deferred by means of transportation, and after improvement by the soil improvement machine, the improved residual soil is again transported to a place to be used by transportation means.
[0005]
[Problems to be solved by the invention]
  Since conventional soil improvement machines are stationary, it is necessary to secure a space for installation. Even if the installation space can be secured, there is a cost for the transportation means at a place remote from the construction site. There is a problem that it is difficult to respond in real time when the construction cost increases or the place where the soil that is the raw material moves one after another. Therefore, if the remaining soil generation site does not carry the remaining soil with high moisture content generated at the construction site and moves one after another, it will be possible to reconstruct it on the spot. There is a problem that it can contribute to the reduction of construction cost and the construction cost.
[0006]
[Means for Solving the Problems]
  An object of the present invention is to solve the above-described problems. A soil improvement plant for modifying soil is mounted on a body frame including a chassis of a vehicle capable of traveling on a road equipped with an engine in a mounting portion of an apparatus. Therefore, even if a vehicle equipped with this soil quality improvement plant is brought into the construction site where the soil to be reformed is generated, the soil can be constantly reformed even when the site where the soil is generated is transferred. Thus, it is to provide a soil-improved plant vehicle that can travel on the road without having to transport it as a residual soil to a distant dumping site.
[0007]
  The object of the present invention is to recycle hard soil by using such a soil-improved plant vehicle capable of traveling on the road and, if necessary, a crushing plant vehicle capable of traveling on the road. It is to provide a soil improvement method.
[0008]
  This invention, DIn a vehicle having a device mounting portion on a vehicle body frame including a chassis capable of traveling on a road on which a vehicle is mounted, the soil improvement plant for reforming soil composed of the device mounted on the mounting portion is the soil A hopper into which the soil is fed, a weighing machine for weighing the soil fed from the hopper by a supply conveyor, a tank for storing a soil condition improver, and a container for storing the soil according to the amount of the soil measured by the weighing machine. A measuring pump for measuring the soil quality improving agent, a stirrer for stirring the soil measured by the measuring machine and fed by a feeding conveyor, and the soil quality improving agent measured and sent by the measuring pump; From a carry-out conveyor for carrying out the modified soil discharged to the outside of the vehicle, and a drive source for driving the equipmentR
  The carry-out conveyor includes a product drawer conveyor for transporting the modified soil discharged from the discharge port of the stirrer to a side portion of the vehicle, and a swivel and a tilt angle changeable below the carry-out end of the product drawer conveyor. A product discharge conveyor installed,
  The product discharge conveyor is provided with a wire that can be wound up by a hoisting machine installed on the frame to which the stirrer is attached, and the product discharge conveyor is operated by the wire by the operation of the hoisting machine. It can be lifted and swiveled.The present invention relates to a soil improvement plant vehicle capable of traveling on the road.
[0009]
  According to the soil improvement plant vehicle capable of running on the road according to the present invention, the soil to be improved is introduced into the hopper of the soil improvement plant that has been brought to the site where the soil is generated, measured after being measured by a measuring machine. It is discharged to the conveyor and supplied to the stirrer by the input conveyor. Depending on the amount of soil weighed, the required amount of soil conditioner stored in the soil conditioner tank is measured by a metering pump. The soil introduced into the stirrer by the charging conveyor and the soil quality improver supplied to the stirrer by the metering pump are stirred in the stirrer to modify the soil. The modified soil is discharged out of the vehicle from the agitator by a discharge conveyor.
[0010]
  Further, in this soil-improved plant vehicle capable of traveling on the road, a folding crane for introducing the soil into a hopper is provided on the body frame. The folding crane is preferably installed in the vicinity of the hopper, that is, on the vehicle body frame at the tail of the vehicle, when the equipment of the soil improvement plant is arranged sequentially from the rear of the vehicle in the order of the processing steps. . When a folding crane is also mounted on a vehicle, it is not necessary to use a construction civil engineering vehicle such as a power shovel to put it into the hopper.
[0011]
  Also, in this soil improvement plant car that can run on the road, StirSince the agitator is provided at the center position in the vehicle width direction for the balance of the arrangement of the equipment on the body frame, the conveyor for carrying out the modified soil to the outside of the vehicle is the best. Appropriate discharge means. Once the modified soil is transported to the side of the vehicle, and then transported from the side to the outside of the vehicle by a conveyor that can be swung and raised, the handling of the modified soil at the site is flexible and handled. It becomes easy, and the carrying-out direction and the height of the modified soil are changed corresponding to various situations around the soil improvement plant vehicle.
[0012]
  Also, in this soil improvement plant car that can run on the road,rollWhen the wire is wound by the operation of the upper machine, the inclination angle of the product discharge conveyor becomes steep, and when the wire is loosened by the operation of the winding machine, the inclination of the product discharge conveyor becomes gentle. The drawing direction of the wire can be followed according to the turning of the product discharge conveyor.
0013]
  This inventionTo the soil improvement plant car that can run on the roadSoil excavated and collected from the ground by excavation meansToSoil intake step for feeding into the hopper of the soil improvement plant placed, a soil improvement step for modifying the soil taken into the hopper by the soil improvement plant, and the soil modified by the soil improvement plant It is related with the soil improvement method using the soil improvement plant vehicle which consists of a modified soil carrying-out process which carries out to the exterior of the said soil improvement plant vehicle.
0014]
  According to the soil improvement method using the soil improvement plant vehicle according to the present invention, the soil to be treated with the soil improvement plant vehicle capable of traveling on the road is excavated and collected from the ground by the excavating means, and after being modified by the soil improvement plant, It is carried out of the vehicle. For example, in the case of soil modification on roads, the removed modified soil is immediately backfilled as the foundation of the road surface dug by excavation. It is clear that the modified soil that has been removed may be used for other purposes.
0015]
  In addition, in this soil improvement method using the soil improvement plant vehicle, a road traveling crushing plant vehicle equipped with a crushing plant that crushes the lump that is excavated and collected from the ground by excavation means into a soil improvement plant vehicle. If the ground is hard soil, the hard soil is crushed into granular materials at the crushing plant, depending on the situation of the soil, whether the ground is soft soil or hard soil. In the case of soil, soft soil is modified at a soil improvement plant. In addition, when the soil to be treated is sludge, an appropriate amount of sludge is mixed with high-quality soil (for example, pure sand soil), and the sludge is reformed at the soil improvement plant. If a crushing plant car that can run on the road is juxtaposed to a soil-improved plant car that can run on the road, it is not a stationary plant but a plant that is mounted on a vehicle that can be brought directly to the site. , Each treatment of hard and soft soils is performed simultaneously and in parallel.
0016]
  In the soil improvement method using the soil improvement plant vehicle, the granular material formed in the crushing plant is put into the hopper of the soil improvement plant, and the agitator is mixed with the soil and soil improvement agent excavated and collected from the ground by the excavation means. And mixed with stirring. Although the granular material formed in the crushing plant can be reused as it is, it may be reused by mixing with the modified soil as an aggregate. In this case, the granular material formed by crushing the lump in the crushing plant is put into the hopper of the soil improvement plant car, and the granular material, the soil to be improved, and the soil improvement agent are mixed in the agitator. Is done.
0017]
DETAILED DESCRIPTION OF THE INVENTION
  Embodiments of a soil improvement plant vehicle capable of traveling on the road according to the present invention will be described below with reference to the accompanying drawings.. ThisSoil improvement plant vehicles in the past have been used as roadbed foundation materials or civil engineering / architecture works by adding soil improvement agents to soil that has been treated as residual soil, such as soil with high water content and sludge that cannot be reused as is. The soil improvement plant 2 for reforming soil that can be recycled as backfill material required for water and sewage works) is mounted on the truck 1, which is a normal vehicle that can run on the road equipped with an engine. It travels on a general road by the front wheels 3 and the rear wheels 4 and 4 and travels directly to the site where the remaining soil is generated, and can be discharged from the vehicle as modified soil that can be reformed and recycled at the site. In this embodiment, a reforming plant that can be reused by reforming raw material soil on an equipment mounting portion 6 on a vehicle body frame 5 including a chassis is applied to the truck 1 behind the cab 1C at the front of the vehicle. is there. This soil improvement plant 2 can also be applied to a trailer mounting portion pulled by a tractor in addition to the truck 1 mounting portion.
0018]
  As shown in FIGS. 1 to 3, a road traveling truck 1 on which a soil improvement plant 2 is mounted includes a cab 1 </ b> C provided on a front wheel 3 and an equipment mounting portion 6 configured integrally with the cab 1 </ b> C. ing. The body frame 5 of the equipment mounting portion 6 includes a chassis that the truck 1 itself originally has and various reinforcing frames that reinforce the chassis. The vehicle body frame 5 incorporates more reinforcing frames in the rear portion of the heavy load area in which the weighing machine 10 and the generator 16 are mounted than in the front portion. On the body frame 5, a stand 7 is attached to support various devices. The drive source is described as the generator 16 below, but may be a hydraulic drive source such as a hydraulic pump with an engine.
0019]
  This soil quality improvement plant vehicle is equipped with a soil quality improvement plant 2 for modifying soil (hereinafter referred to as “raw material soil”) that is a raw material to be reformed in the equipment mounting portion 6, and the equipment is arranged in order from the rear of the vehicle. A hopper 8 that feeds the raw soil, a feed conveyor 9 that feeds the raw soil introduced into the hopper 8 to the weighing machine 10, and the raw soil measured by the weighing machine 10 are conveyed to the rear part of the mounting unit 6. And a device such as an input conveyor 11 to be charged into the stirrer 12. The soil improvement plant 2 was further weighed in front of the equipment mounting unit 6, a stirrer 12 into which the measured raw material soil transported from the input conveyor 11 was charged, a tank 13 for storing a soil quality improver to be supplied to the stirrer 12, Equipment such as a modifier metering pump 14 for supplying a soil modifier stored in the tank 13 to the agitator 12 according to the amount of raw soil, and a carry-out conveyor 15 for carrying out the modified soil are provided.
0020]
  In the following, the raw soil will be described in detail in the order of processing the raw soil. At the rear part of the soil-improved plant vehicle capable of traveling on the road, hoppers 8 for charging the residual soil as raw materials are supported by the pedestal 7 at the four corners. It is provided above the frame 5. The generator 16 is accommodated in such a manner that the space surrounded by the support pillars at the four corners constituting the gantry 7 is effectively used. The electric power generated by the generator 16 is used for various devices for operating the soil improvement plant 2, such as a metering pump 14, a high-pressure pump 51, a stirrer 12, various supply conveyors 9, and an input conveyor 11 as will be described later. , And power for operating each motor that drives the carry-out 15, control power for the control panel 50, power source for illumination, and the like.
0021]
  A folding crane 17 can be optionally attached to the rearmost part of the vehicle body frame 5 as one of means for feeding the raw material into the hopper 8 by extending the vehicle body frame 5. The folding crane 17 is a scraper, bucket, or excavator provided at the tip of an operator by sitting on a chair provided at the top and operating various operation levers to bend or extend the folded boom. It operates various attachments for soil excavation. When the folding crane 17 is used, the weight, the impact force greater than the predetermined value, and the vibration force are directly supported against the road surface at the rearmost part of the body frame 5. The outrigger 18 serving as a rear column such as a jack that can be expanded and contracted with a screw or the like is extended to be in a grounded state through a floor plate or the like. When an excessive load is applied to the truck 1, the outrigger 18 supports the vehicle body frame 5 and protects the buffer means of the truck 1.
0022]
  In this soil quality improvement plant vehicle, a measuring machine 10 for measuring raw material soil is installed at a position immediately above the rear wheel 4 on the body frame 5, and a measuring meter 19 is installed at the upper part of the measuring machine 10. As the weighing machine 10, a weight weighing type is used. The weighed weight is displayed by the meter 19 every moment. The supply conveyor 9 is operated until the weighing machine 10 measures a predetermined weight of the raw soil put into the hopper 8, and when the weighing machine 10 measures a predetermined weight, a command from the control panel 50 is given. As a result, the operation of the supply conveyor 9 is stopped. The carry-in end of the input conveyor 11 is located below the weighing machine 10, and when the predetermined measurement of the raw soil is completed and the operation of the supply conveyor 9 is stopped, the measured soil is discharged to the input conveyor 11. .
0023]
  At the lower part of the weighing machine 10, for example, opening / closing means 20 that operates with compressed air is provided. The opening / closing means 20 is closed during the measurement, but when the measurement is completed, the opening / closing means 20 is opened and the raw material soil measured inside is discharged from the lower part. The input conveyor 11 is supported by each of the gantry 7 at the front and rear of the vehicle, and is an inclined conveyor disposed so as to convey the residual soil discharged downward from the lower batcher 10a of the weighing machine 10. is there. A scattering prevention cover 21 is provided between the discharge port of the weighing machine 10 and the input conveyor 11 so that the raw material soil does not scatter and stain the body frame 5. Further, the upper portion of the input conveyor 11 is covered with a dustproof cover 22 for preventing dust from scattering. The soil discharged downward from the weighing machine 10 is charged into the stirrer 12 by the charging conveyor 11. The operation time of the input conveyor 11 is fixed every time when the soil is discharged downward from the weighing machine 10, and the lower batcher 10a of the weighing machine 10 is closed by closing the opening / closing means 20 when that time has elapsed. To do.
0024]
  The stirrer 12 adds a soil improver to the raw material, stirs the soil and the additive, and mixes them uniformly. The stirrer 12 includes a pair of stirring screws 24 and 25 arranged in parallel and driven by a pair of stirring motors 23. The output of the agitating motor 23 is transmitted to the agitating screws 24 and 25 through a transmission means 26 comprising a pulley and a belt. The stirring motor 23 is always driven during plant operation, and the stirring screws 24 and 25 are always rotating. The agitation screws 24 and 25 each have a rotating blade having the same screw pitch but a reverse spiral direction. Opening / closing means 27 for opening and closing the bottom of the stirrer 12 is provided below the stirrer 12. The opening / closing means 27 has a base end of an air actuator that operates with compressed air attached to the mount 7 and a tip attached to the opening / closing plate. The open / close plate closes the bottom of the stirrer 12 when the air actuator is extended, and the open / close plate opens the bottom of the stirrer 12 while the shrimp cylinder is contracted. The opening / closing means 20 also has the same structure as the opening / closing means 27.
0025]
  After the charging conveyor 11 is stopped, the improver stored in the tank 13 is sucked up by the metering pump 14 and injected into the stirrer 12 from the upper center of the stirrer 12 through the improver charging pipe 28. An inlet 29 for replenishing the modifier is provided in the upper part of the tank 13. The metering pump 14 supplies a necessary amount of the improving agent to the agitator 12 according to the amount of raw material soil measured by the meter 10. In addition, the soil improvement agent can employ | adopt appropriate things, such as a cement type, asphalt type, or a water solvent type, for example.
0026]
  The carry-out conveyor 15 provided in the lower part of the stirrer 12 includes an upper product drawing conveyor 30 and a lower product discharge conveyor 31 and is normally rotated by a motor at all times during operation of the soil improvement plant 2. Since the lower batcher 12a of the stirrer 12 is normally located at the lower center of the stirrer 12, the modified soil generated by the stirrer 12 extends horizontally from the bottom of the batcher 12a of the stirrer 12 in the vehicle width direction of the truck 1. Is immediately discharged onto the product drawer conveyor 30 installed in the vehicle, and the product drawer conveyor 30 pulls the modified soil to the side of the truck 1. Since the modified soil drawn out by the product withdrawal conveyor 30 falls on the product delivery conveyor 31 at the side of the body frame 5, the product delivery conveyor 31 for carrying out the modified soil to the outside of the truck 1 is It can turn with respect to the vehicle body frame 5 at a position.
0027]
  The product carry-out conveyor 31 is mounted so that the carry-in port is placed below the carry-out port of the product draw-out conveyor 30 and can be swung within a horizontal angle range of about 130 ° around the side of the vehicle and the tilt angle can be changed. A hoisting machine 32 is installed on the gantry 7 installed on the vehicle body frame 5 and attached with the stirrer 12, and a wire 33 that can be wound up by the hoisting machine 32 is attached to the product discharge conveyor 31. The product discharge conveyor 31 can be lifted by a wire 33 by the operation of the hoisting machine 32 and can be turned around a turning shaft 34 supported by the vehicle body frame 5. Since the exit of the product carry-out conveyor 31 can be set to any direction and height outside the track 1 within the above-mentioned swiveling and tilting ranges, the modified soil as the product is loaded on another truck. Or stacked on the side of the truck 1. The discharge conveyor that can be swung and undulated may be the same as that already filed by the present applicant (Japanese Patent Laid-Open No. 9-85117).
0028]
  The truck 1 is equipped with the following equipment as an auxiliary equipment for the soil improvement plant 2. That is, scaffolds 40, 41, and 42 are provided on a part of the surroundings adjacent to each other for maintenance and repair of the hopper 8, the weighing machine 10, and the stirrer 12. . The scaffolds 40, 41, 42 are composed of a metal frame and a wire mesh stretched in the frame. A handrail 43 that can be grasped by an operator for safety is provided upright from the scaffolds 40, 41, and 42. Further, when the truck 1 arrives at the work site, a ladder 44 is provided so that the worker can ascend and descend on the vehicle body frame 5 from the lift plate 45 in a state where the truck 1 is tilted from the road surface. When the vehicle is traveling, the vehicle is stored using a vacant space on the body frame 5 (the storage state is indicated by 44a in FIG. 2).
0029]
  Further, the truck 1 receives a detection signal from each sensor in addition to the generator 16, and controls a control panel 50 for controlling the operation of each device of the soil improvement plant 2 in accordance with an operation sequence inputted in advance. A high hydraulic pump 51 for driving the modifying agent metering pump 14 and the like, a compressor 52 for generating compressed air for driving an air actuator provided in the opening / closing means 20 of the metering machine 10 and the opening / closing means 27 of the stirrer 12; The vehicle body frame 5 is disposed in a suitable space such as a side portion of the vehicle body frame 5 with a good balance. Further, a fuel tank 53 for operating the vehicle engine and the generator 16 and a water tank 54 for storing water to be supplied to the watering machine for washing or dust scattering prevention are arranged in a well-balanced space in the lower part of the body frame 5. Yes.
0030]
  In this crushing plant vehicle, vibration sources such as the weighing machine 10, various conveyors, and the stirrer 12 are supported by the vehicle body frame 5 and the gantry 7 through a vibration absorption support made of a vibration isolating material. For example, the stirrer 12 can absorb and absorb a part of the force such as vibration generated when the raw soil and the soil conditioner are mixed, and can prevent the generation of noise. The vibration-absorbing support body is composed of, for example, a solid rod-shaped rubber body and a spring embedded in a spiral shape in the longitudinal direction of the rod-shaped rubber body, and locking holes are provided at both ends of the rod-shaped rubber body. . By interposing a vibration absorbing support between the soil improvement plant equipment and the body frame 5 or the gantry 7, a part of the force such as vibration generated at each vibration source is buffered and absorbed, so that the soil improvement plant vehicle. Noise and vibration generated by the operation of the are reduced to a minimum. As the details of the vibration-absorbing support, for example, those disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 9-85117 related to the present applicant can be applied, and therefore, the detailed description thereof is omitted in this specification.
0031]
  In the above embodiment, the discharge conveyor 15 is described as a conveyor that can be swung and tilted on the side of the vehicle. However, the discharge conveyor itself that can be swung and tilted is described in Japanese Patent Laid-Open No. 9-85117. What is disclosed in can be applied. Further, the discharge conveyor is not limited to this, and the lateral side of the cab 1C is configured to form a space without a cab, and the lateral width of the space 1S passes through a carry-out conveyor as a granular material discharge means. If it is set larger than the width of the carry-out conveyor so that it can extend with sufficient margin in the front, the discharge conveyor can be extended forward through the lateral space of the cab 1C, and the product can be moved forward of the vehicle. It becomes a soil improvement plant vehicle that can be discharged. Such a carry-out conveyor to the front of the vehicle is disclosed in Japanese Patent Application No. 8-99662 and Japanese Patent Application No. 8-262281 related to the present applicant, and further description thereof will be omitted. For any conveyor (input conveyor 11, product drawer conveyor 30, product discharge conveyor 31), soil will spill out of the conveyor if grooves are formed in a shallow V-shape on the belt transport surface. There is no.
0032]
  The operation of the embodiment of the present invention will be described below. First, the generator 16 is operated, and the switch of the control panel 50 is turned on to place each mounted device in a standby state. The stirrer 12 is always in an operating state. Moreover, the product carry-out conveyor 15 which carries out the formed improved soil out of a plant vehicle is set so that it may become a predetermined carrying-out direction and carrying-out height. Next, when the folding crane 17 is equipped, the folding crane 17 is operated, and when the folding crane 17 is not equipped, the remaining soil as a raw material is hopped by a construction civil engineering machine such as a power shovel. 8 The soil put into the hopper 8 is supplied to the weighing machine 10 by the supply conveyor 9. The operation of the supply conveyor 9 is continued until a certain amount of raw material soil is supplied to the weighing machine 10. When it is detected that a certain amount of raw material soil has been supplied to the weighing machine 10, the operation of the supply conveyor 9 is automatically stopped, and the lower batcher 10a of the weighing machine 10 has an opening / closing means 20 from the compressor 52. The compressed soil is opened at a stretch, and the measured soil is closed after being discharged onto the input conveyor 11 provided below the measuring device 10.
0033]
  The input conveyor 11 is operated for a certain period of time after the detection of a certain amount of soil by the weighing machine 10, that is, for a time sufficient to complete the input to the stirrer 12. When the charging conveyor 11 stops, the metering pump 14 sucks up a required amount of soil improver from the tank 13 according to the amount of soil measured by the meter 10 and injects it into the stirrer 12 through the improver charging pipe 28. . With the opening and closing means 27 closed, the raw material soil and the soil condition improver are stirred and kneaded. The modified soil is discharged to the discharge conveyor 15 by opening and closing means 27 provided in the listing batcher 12a. The modified soil is sent to the side of the vehicle by a product drawer conveyor 30 that is always operated, and is further discharged to the outside of the vehicle by a product discharge conveyor 31 that can be swiveled at a lower portion thereof. When the above operation process is repeated, when the lower batcher 10a of the weighing machine 10 is closed by the opening / closing means 20, the supply conveyor 9 is restarted. When the lower batcher 12a of the stirrer 12 is closed by the opening / closing means 27, the loading conveyor 11 If it is operated, continuous operation becomes possible.
0034]
  Next, for example, when a paved road is repaired, an embodiment in which a soil-improved plant vehicle capable of traveling on the road according to the present invention is used in combination with a crushing plant vehicle capable of traveling on the road will be described with reference to FIG. The crushing plant car 60 has a crushing plant 61 mounted on the mounting portion. For example, the crushing plant car disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 9-85117 can be used, and a lump is loaded. The hopper 62, the crusher 64 that crushes the bulk material fed from the hopper 62 by the vibration feeder 63, the vibration sieve 66 that sorts the crushed material sent from the crusher 64 by the transport conveyor 65, and the vibration sieve 66 In order to re-crush the crushed material of a predetermined size or larger, the return conveyor 67 that forwards the crushed material from the vibrating screen 66 to the crushing device 64, and the discharge of the granular material of the predetermined size or less selected by the vibrating screen 66 to the outside of the vehicle. It comprises a conveyor 68 and a driving device for driving these devices.
0035]
  The laid stones that make up the surface layer of the road made of asphalt or concrete and the subbase layer below it were demolished by a suitable construction civil engineering vehicle and put into the hopper 62 of the crushing plant 61 as hard soil and put in The lump of hard soil is crushed into granules. The obtained granular material may be reused at the work site as it is, or may be used for another purpose. When soil having a high water content appears in the lower part of the roadbed layer, the soil is improved by the soil improvement plant 2 mounted on the soil improvement plant vehicle. The obtained modified soil may be reused as a road foundation at the site, or may be reused for other purposes. Furthermore, it is conceivable to mix the raw material soil and the granular material obtained in the crushing plant 61, but in this case, the granular material obtained in the crushing plant 61 is transferred to the soil improvement plant 2 by the carry-out conveyor 68. Into the hopper 8. The granular material obtained by crushing the lump is supplied to the agitator 12 together with the soil, and is agitated and mixed with the soil quality improver in the agitator 12, and the reforming of the raw material soil and the mixing of the granular material are simultaneously performed in the agitator 12.
0036]
  The arrangement relationship between the crushing plant vehicle 60 and the soil improvement plant vehicle is not limited to the arrangement relationship as shown in FIG. 4, but may be an arrangement relationship that is just in parallel by appropriately setting the length of the discharge conveyor 68. In places where it is not possible to secure a space for juxtaposing both plant cars, such as places where the road width is not wide, this application is filed as the crushing plant car 60 in the above Japanese Patent Application No. 8-99662 and Japanese Patent Application No. 8-262281. A front-discharging type crushing plant vehicle that has already been proposed by a person (using a truck with a space on one side of the truck's cab, rotating the carry-out conveyor to a position extending forward of the vehicle through this space, It is possible to use a front discharge type crushing plant vehicle that can discharge an object to the front of the truck. In this case, a soil improvement plant car is arranged in front of the crushing plant car, and the granular material produced by crushing the lump with the crushing plant car and discharged to the front of the crushing plant car by the carry-out conveyor is After being put into the hopper 8 of the plant 2, it is mixed with soft soil and sludge by the agitator 12 and used for improving the soil quality of the soft soil and sludge.
0037]
【The invention's effect】
  Since the present invention is configured as described above,, SoftSoil to be improved, such as quality soil and sludge, is put into a hopper of a soil improvement plant, weighed by a weighing machine, discharged to a loading conveyor, and supplied to a stirrer by a loading conveyor. Depending on the amount of soil weighed, the required amount of soil conditioner stored in the tank is measured by a metering pump. The soil introduced into the stirrer by the charging conveyor and the soil quality improver supplied to the stirrer by the metering pump are stirred in the stirrer to modify the soil. The modified soil is discharged out of the vehicle from the agitator by a discharge conveyor. Therefore, a soil improvement plant vehicle equipped with all the equipment necessary for soil modification goes directly to the work site, and the soil modification plant can be operated at that site. Therefore, according to this soil improvement plant vehicle that can run on the road, there is no need to secure a deferred space as in the case of using a stationary soil improvement plant, and the site where the soil is generated moves one after another. Even in such cases, it is possible to immediately move in response to the mobility of mounting a soil improvement plant on the vehicle. In addition, a necessary amount of the soil conditioner can be measured without waste and spent for improving the soil quality, so that the soil can be improved efficiently and the construction cost can be reduced.
0038]
  In addition, the soil improvement method according to the present invention is to modify soil using a soil improvement plant vehicle capable of traveling on the road, and is mounted on a soil improvement plant vehicle capable of traveling on the road that can go straight to the site where the raw material soil is generated. The soil can be modified at the soil improvement plant. In addition, the soil to be reformed can be reused immediately without having to be discarded as residual soil, and the environmental impact that becomes a problem when discarding the residual soil is reduced.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of a soil improvement plant vehicle capable of traveling on a road according to the present invention.
FIG. 2 is a top view of the soil-improving plant vehicle capable of traveling on the road shown in FIG.
FIG. 3 is a rear view of the soil-improved plant vehicle capable of traveling on the road shown in FIG. 1;
FIG. 4 is a schematic view showing a working state in which the soil improvement plant vehicle capable of traveling on the road shown in FIG. 1 and the crushing plant vehicle capable of traveling on the road are juxtaposed.
[Explanation of symbols]
  1 track
  2 Soil improvement plant
  5 Body frame
  6 Equipment mounting section
  7 frame
  8 Hoppers
  9 Supply conveyor
  10 Weighing machine
  11 Input conveyor
  12 Stirrer
  13 tanks
  14 Metering pump
  15 Unloading conveyor
  16 Generator (or hydraulic drive source)
  17 Folding crane
  30 Product drawer conveyor
  31 Product discharge conveyor
  33 Hoisting machine
  34 wires
  60 Crushing plant car that can run on the road
  61 Crushing plant

Claims (5)

In a vehicle having an equipment mounting portion on a vehicle body frame including a chassis capable of running on a road on which an engine is mounted, the soil improvement plant for reforming soil composed of the equipment mounted on the mounting portion includes the soil A hopper into which the soil is fed, a weighing machine for weighing the soil fed from the hopper by a supply conveyor, a tank for storing a soil condition improver, and a container for storing the soil according to the amount of the soil measured by the weighing machine. A measuring pump for measuring the soil quality improving agent, a stirrer for stirring the soil measured by the measuring machine and fed by a feeding conveyor, and the soil quality improving agent measured and sent by the measuring pump; A carry-out conveyor for carrying out the modified soil that is discharged out of the vehicle, and a drive source for driving the equipment. Growth is,
The carry-out conveyor includes a product drawer conveyor for transporting the modified soil discharged from the discharge port of the stirrer to a side portion of the vehicle, and a swivel and a tilt angle changeable below the carry-out end of the product drawer conveyor. A product discharge conveyor installed,
The product discharge conveyor is provided with a wire that can be wound up by a hoisting machine installed on the frame to which the stirrer is attached, and the product discharge conveyor is operated by the wire by the operation of the hoisting machine. A soil-improved plant vehicle capable of traveling on the road, characterized in that the vehicle can be lifted and turned .   The soil-improved plant vehicle capable of traveling on the road according to claim 1, wherein a folding crane for feeding the soil into the hopper is provided in the vehicle body frame.   The hopper of the soil improvement plant mounted on the soil improvement plant vehicle capable of traveling on the road according to claim 1 or 2, wherein the soil or sludge treated by excavation means and collected from the ground is mixed with the soil treated with high quality soil. A soil uptake process to be introduced into the hopper, a soil improvement process to modify the soil taken into the hopper by the soil improvement plant, and the soil modified by the soil improvement plant to the outside of the soil improvement plant vehicle A soil quality improvement method using a soil quality improvement plant vehicle comprising a modified soil transportation process to be carried out. A crushing plant vehicle capable of traveling on the road carrying a crushing plant for crushing a lump that has been excavated and collected from the ground by the excavating means is juxtaposed to the soil improvement plant vehicle, and the ground is soft soil If the ground is the hard soil, the hard soil is crushed into the granular material in the crushing plant, and the ground is the soft soil, depending on the state of the soil whether it is hard soil The soil improvement method using the soil improvement plant vehicle according to claim 3 , wherein the soft soil is improved in the soil improvement plant. The granular material formed in the crushing plant is put into the hopper of the soil improvement plant, and is stirred and mixed in the stirrer together with the soil excavated and collected from the ground by the excavation means and the soil improvement agent. A soil improvement method using the soil improvement plant vehicle according to claim 4 .

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