JPS6018772B2 - How to create mounds etc. - Google Patents

Description

[Detailed description of the invention] The present invention relates to improvements in methods for creating mounds, etc.

Raw materials such as earth and sand or stones (hereinafter simply referred to as raw materials).

) to a predetermined location to create banks, mounds, etc. of a predetermined size, conventionally, the raw material was spread evenly on the predetermined raw ground, and then a blade or scarifier was applied. Generally, the method of leveling the ground with a leveling machine such as
(i) When supplying raw materials, it is difficult to spread the raw materials evenly over the original ground, and the spreading work is troublesome and requires a lot of effort.

(ii) The work of spreading the raw material and the work of leveling it are performed completely separately, resulting in double effort.

(iii) Because the raw material has a large leveling resistance against blades, etc., and the fluctuation range of that resistance becomes large,
It is necessary to allow for a large safety factor in the power and strength of the leveling machine, which is one of the reasons that the leveling machine becomes larger and costs increase.

W Since it is not possible to obtain a surface with sufficient precision with just one leveling operation, the leveling operation must be repeated many times, and the disadvantages of (i) and (ii) above are met. As a result, work efficiency becomes extremely low and the construction period becomes longer.

There were drawbacks such as.

In recent years, there has been an increase in requests for large-scale, short-term construction work for seawalls, but the above-mentioned follow-up methods are still being used in all of them, which is extremely unsatisfactory in terms of cost and functionality.

In view of the above circumstances, the present invention was proposed with the aim of providing a method that eliminates the drawbacks of the conventional methods described above. The lower end of the chute has a thin walled closed cross-sectional shape that can be horizontally moved in a predetermined direction using an appropriate moving means, and whose forehead can be tilted appropriately so that the upper end entrance is positioned upward in the direction of movement. After the opening is set at a predetermined height above the source ground such as a mound, the inside of the chute is filled with raw materials such as sand and stone using an appropriate detection means from the entrance at the upper end of the chute. The raw material is continuously supplied until it is detected, and then the moving means activated by the signal from the chatter detection means is used to horizontally move the chute for a predetermined distance in a predetermined direction. The present invention relates to a method for creating a mound or the like, which is characterized in that a mound or the like having a predetermined height and width is created on the above-mentioned original ground by sanding.

The principle of the method of the present invention will be explained below with reference to FIGS. 1a to 1i. Z As shown in Figure 1a, first set the chute 2 at a height above the original ground 3 at the starting end position of the mound 1 to be built. The chute 2 has a horizontally movable structure, has a thin-walled closed cross-sectional shape, and has an opening at the lower end with an appropriate elevation angle of 8 determined by the grain size of the raw material 2 such as stone. In order to prevent the bridging phenomenon, the cross-sectional dimension is sufficiently large compared to the grain size of the stone, and the shape is widened at the tip.

FIG. 1b shows a state in which stones 4 have begun to be supplied to the chute 2, but if stone continues to be supplied in this state, the stones 4 will be
It is deposited on the original ground 3 and reaches the entrance of the chute as shown in Fig. 1c, and then it is deposited inside the chute (see Fig. 1d). Fig. 1e shows that stones are deposited in the chute 2 and reach the upper end of the chute. It shows a state where the storage space 5 has been reached, but the storage space 5
When a suitable detection means (not shown) detects that the stone has reached Peru, the moving means (not shown) of the chute 2 is actuated by the signal, and the chute 2 is moved. is moved horizontally by a fixed distance 1 in the direction of the arrow. Through this operation, the stones in the storage space 5 of the chute fall and accumulate on the original ground 3 only by the action of gravity to form a new mound, and at the same time, the green part at the lower end of the chute
The top surface of the mound is leveled. Figure 1 f shows the state where horizontal movement has been completed by a certain distance L, and chute 2
Then, a flat mound of equal length L (=1) will be built in the chute, and stones will be supplied at this position in the same way as in Figure 1b. This shot horizontal movement distance 1
is the amount determined from the chute height and the internal volume of the chute, and if the volume is increased within the range that allows the resistance during horizontal movement, the above length 1 will also be correspondingly longer, which will be advantageous in terms of work efficiency. . Afterwards, the states g, h, i, and i in Fig. 1 represent the processes corresponding to c, d, e, and f in Fig. 1, respectively, and the repetition of these operations results in the same state during shooting. You can build a flat stone mound of a certain height inside. In addition, as shown in Fig. 4a and b, when building a mound 8 with a wide inside, first the chute 2 is (i), (
ii), (iii), ``After moving horizontally in the order of W and M to build the first mound 7, chute 2 was moved laterally only during the shoot so that it was adjacent to the first mound 7 ( By setting the mound 8 at the position W) and repeating the same operations as in the first row one after another, a mound 8 of a predetermined medium-L height and length can be built. The above is the method of creating a mound according to the present invention, and when this method is used, it is possible to significantly reduce the leveling force and improve the leveling accuracy compared to the conventional method.

The effect of reducing leveling resistance and improving leveling accuracy by the method of the present invention will be explained below. Traditional stone spreading and plaiding
In this leveling method, stones are spread over a wide area so that they are as flat as possible, but the flatness is quite uneven as shown in Figure 2A.

Therefore, when leveling the upper surface with the blade 6, a large amount of stones (stones marked with ●) are involved in the leveling force, and as shown in Figure 2B, they accumulate on the front surface of the blade as the leveling work progresses. As the amount of stone increases and there is less space to discharge it, the leveling force increases significantly. In addition, in terms of accuracy, the phenomenon of digging up stones frequently occurs, and as shown in Figure 2 C, a particular stone (stone marked with a circle) scrapes the stones in front of it horizontally and moves until evening. This may result in roughening of the mound surface. Furthermore, since stones accumulated on the front side of the blade are discharged on both sides of the blade, some of the stones discharged on the surface of the adjacent ready-made mound accumulate, reducing the flatness of the surface. Repeated leveling becomes necessary. On the other hand, in the method according to the present invention, as shown in FIG.
At the same time, it falls under the action of gravity and forms a mound.
Stones on the upper surface of the mound in front of the lower end of the chute are leveled by the green area at the rear of the chute, making it extremely efficient as stone scattering and leveling are performed at the same time.

In addition, the amount of stones leveled by the lower end rear twill section × when moving the chute is small only for the stones surrounded by the cross section of the lower end closing part of the chute (stones marked with ●), and the direction of the force exerted on the stones is as shown in the figure. The force required for leveling is significantly reduced because it faces downward and does not contradict the direction of gravitational force Z, which causes the stones near the green part Z in front of the lower end of the chute to fall. The maximum value of the leveling resistance force when moving the chute appears at the start of movement, but since the amount of stone deposited in the chute at the start of movement is always constant, the maximum value of the leveling resistance force is always a fixed J value. Since the power and strength of the device can be designed very accurately, it is possible to manufacture a safe and economical device. On the other hand, regarding the leveling accuracy, the direction of the force exerted on the stones by the rear twill part This prevents stones from being discharged on both sides, and does not damage the flatness of the adjacent existing mound surface, so there is no need to repeat leveling operations.
Second, a specific example of a method for creating a seabed rubble mound using the method of supplying and leveling raw materials such as stones according to the method of the present invention will be described. In Figure 5, 3 is the original ground and 12 is the existing rubble mound.

In this specific example, a rubble supply and leveling device is mounted on the opening □ of the barge 13, which has a square entrance in the center, so that it can be moved forward, backward, left and right, and a mound over a wide range is formed in one barge position. This is what I am trying to do. In other words, barge 1 in the figure
3 has a position fixing spud 14 and a spud lifting device 15
A rail 16 is provided, and a self-propelled cart 19 equipped with a rail 17 and a conveyor rack side 18 is provided on the rail 16. Further, on the rail 17, there are provided a target cart 20, a charging hopper 21, a charging conveyor 22, and a conveyor pedestal 23.
The chute 2 is attached to the conveyor frame 23 at the tip of the chute 2. A telescopic supply conveyor 24 is mounted on the conveyor frame 18.
and a receiving hopper 25 is provided on one end thereof. When building a mound underwater in such a configuration, first the barge 1
After setting the position 3, it is fixed with the spud 14.
Next, the height of the lower closed portion of the chute 2 is set under water, and the cart 19 is moved to the most extreme point in the direction of the building. In addition, the positions of the two trolleys are set in the left and right directions, taking into consideration the mound that is to be built. After that, the input conveyor 22 and the supply conveyor 24 are started, and the stones 4 carried by the gut ship 26 are delivered to the receiving hopper 25 by the grab 27, and then loaded into the input hopper 21 by the supply conveyor 24, and further loaded. It is supplied to the seabed via a conveyor 22 and a chute 2.
In this way, the supply of rubble continues, and when the chute 2 is filled with rubble and reaches a specified level, a level detector (not shown) is activated and the self-propelled cart 19 is horizontally moved a certain distance in the direction of the hammer. . Afterwards, by repeating this action, a mound with a flat top surface is built up during the shoot in the direction of the fin rudder. If you want to spread out the mound, use the self-propelled trolley 2.
0 was moved in the port and starboard direction during the chute, and a second mound was built adjacent to the first mound in the Okagi direction. By combining the line return of these operations and the change of barge position, it is possible to create medium and long mounds. In summary, the present invention has an inner volume of a certain size, has a checkerhead section at the lower end that is horizontal or has an appropriate angle of elevation, and is movable horizontally in a predetermined direction using an appropriate moving means, and is capable of moving horizontally in a predetermined direction with respect to the direction of movement. , After setting the lower end closed part of the chute, which has a closed cross-sectional shape and is appropriately inclined so that the upper end opening part is located upward, at a predetermined height position on the raw ground such as a mound, the upper end of the chute Raw materials are continuously supplied from the closed part until an appropriate detection means detects that the inside is filled with raw materials such as earth, sand, stones, etc., and then the chute is The method is characterized in that a mound or the like of a predetermined height and width is created on the original ground by performing an operation of horizontally moving the mound in a predetermined direction for a predetermined distance, and further by reversing this operation by an appropriate degree. Since the gist is a method for creating mounds, etc., the present invention eliminates the drawbacks of the conventional methods described above, and improves the conventional method of dumping and leveling raw materials such as stones. Efficiency can be improved by simultaneously discarding and leveling the work in stages.

{21 By leveling while dumping, the leveling work can be performed with less force than with conventional leveling methods.

[3; Since the stone supply port is located close to the mound, there is almost no dispersion of stones in the water, and the amount of stones can be saved.

{4' By appropriately selecting the shape, setting, and movement method of the chute, a flat mound finished surface can be easily obtained.

{5} Since the chute is moved after confirming that the chute is filled with stones, it is possible to obtain a flat finished mound surface without being affected by the unevenness of the raw ground, and it also reduces the amount of stone supplied. No control is required either.

The following practical effects can be mentioned.

[Brief explanation of drawings]

Figures 1 a to i are schematic illustrations of the process sequence of the method of the present invention, Figures 2 A, B, and C are diagrams illustrating the disadvantages of the secondary method when leveling raw materials, and Figure 3 is the method of the present invention. Figures 4a and 4b are explanatory diagrams of the movement of the chute when creating a wide mound, and Figure 4a is a side view; Figure 4a is a side view; b is a plan view, and FIG. 5 is a perspective view showing an example of the method for creating a seabed rubble mound according to the present invention. 1, 7, 8: Mound etc., 2: Shoot, 3: Original ground,
5: Storage space. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] 1. It has an internal volume of a certain size, has an opening at the lower end that is horizontal or has an appropriate angle of elevation, and can be moved horizontally in a predetermined direction using an appropriate moving means, and the upper end opening is After setting the lower end opening of a thin-walled closed cross-sectional chute that is appropriately inclined so as to be located upward at a predetermined height above the ground of a mound or the like, the inside of the chute is inserted from the upper end opening of the chute. , the raw material is continuously supplied until an appropriate detection means detects that the chute is filled with raw materials such as earth, sand, stones, etc., and then the chute is moved in a predetermined direction by the above-mentioned moving means activated by a signal from the detection means. A method for creating a mound, etc., characterized in that a mound, etc. of a predetermined height and width is created on the original ground by performing an operation of horizontally moving a distance and further repeating this operation an appropriate number of times.