JPS6065822A - Leveller for rubble-mound - Google Patents

Abstract

PURPOSE:To form a uniform levelling surface by installing an extensible leg to a horizontal stand while mounting hydraulic sensors at the four corners of the stand and setting up a chute truck which can travel on the stand. CONSTITUTION:The four corners of a horizontal stand 1 are hung by wires 14 from a support ship, signals from hydraulic sensors 15 are compared and the wires 14 are adjusted to keep a device at a level while suspension is stopped temporarily at height from the proper bottom of the water by signals from an acoustic depth finder group 16, and the device is induced to a predetermined position. Legs 17 are expanded and contracted, the device is seated and the wires 14 are slackened, and the horizontality of the device is calculated accurately and the device is seated. A travelling stand 4 is made to travel on rails 2 for the horizontal stand 1 while a chute truck 7 is made to travel on rails 5 for the travelling stand 4, thus crosswise making a levelling chute 9 to travel, then paving and levelling rubble mounds.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a method for flattening caissons, blocks, etc. on the bottom of the water without precisely smoothing out the unevenness of the topmost stone that constitutes the foundation mound of the HE structure. Regarding the equipment, the construction of a foundation mound is carried out through the steps of stone dumping, rough leveling, and main leveling, and the finishing accuracy generally has to be within the limit of unevenness in the case of main leveling. (The construction work for the foundation mound in Ogoro was carried out on the slope shoulder and O of the foundation mound.
We set up a line of sight bamboo at the bottom of the slope, threw stones at the diver's instructions, and then set up an underwater fence! Kaiseihibi is leveling the area while moving the leveling ruler. These tasks involve going down into the water, and in recent years, due to the deepening of the water in port construction, increased labor regulations, and a shortage of bubble divers, there is a tendency for the work to become a rice crop. There is a need to develop a mechanized construction technology for the leveling process.

However, many of the conventional leveling techniques that have been developed use screws, fields, and one-drive machines for leveling work, and these methods require separate processes for dumping and leveling, and they are difficult to dissipate and reduce the scattering of rubble. There is a problem with leveling accuracy, and the method using a drop-in leveling chute uses a barge with a spud or the rudder of a pump boat, making it difficult to work in deep water. Therefore, the present rubble leveling device was invented as an economical device that is not affected by water depth and has good leveling accuracy.

In the present invention, after suspending this device from a barge on the water and seating it on the water bottom, the legs are extended and contracted to make the device horizontal, and rubble is dropped from the barge into the hopper of the traveling platform, and the dumping leveling shoe 1. This is a device that obtains an unbroken and uniform leveled surface by leveling the surface by running it vertically and horizontally.

Next, the present invention will be explained based on the drawings. FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a side view thereof.

The horizontal frame 1 is a box-structured frame, and the inside is appropriately partitioned to double as a buoyant body. Rails 2 are laid on the upper surfaces of the pair facing each other, and a traveling frame 4 guided by wheels 3 moves on the rails 2. The traveling frame 4, like the horizontal frame 1, also serves as a buoyant body. Rail 5 on both sides of L bottom
Shoe 1 truck 7 is laid and guided by wheels 6 on top of it.
runs. A hopper 8 and a dumping leveling chute 9 are attached to the top truck 7, and the dumping and leveling chute 9 is moved vertically and horizontally by the running of the top truck 7 and the traveling platform 4.
r! You can JJ. The rail 5 on the lower surface of the traveling frame 4 receives the vertical reaction force of the leveling, and the traveling frame 4, shoe 1, and truck 7 are equipped with a drive device to ensure straightness and to ensure the horizontal reaction force during leveling. A kite river roller will be installed for protection. Running fj mount 71 and chute trolley 7
Hydraulic motor 11 by hydraulic unit 10.10'
, 11' and a pin rack dimension or a rack 12, 12 degrees.

The method for sitting on an uneven water bottom is as follows: 1. If the traveling frame 4 and the horizontal frame] are used as a 7' suspension body and the weight still exceeds several tens of tons,
? The four corners of the horizontal frame 1 are suspended from the barge by wires 14 to reduce the weight by attaching the lever body 13. In the suspended state, signals from water pressure sensors 15 provided at the four corners of the horizontal pedestal 1 are compared, and the wire 14 is adjusted to keep the device horizontal. On the other hand, in response to a signal from the echo sounder group 16, which performs 81 measurements of the leveled surface, the suspension of the iN from the water bottom was temporarily stopped, and the equipment, such as piano wire, was transported from a fixed point on land. Visually observe the target scale and guide it to the designated position. When the work is completed, the legs 17 are extended and the seat 14 is loosened. O after seating and mechanical 51 in the corner
The height is observed from a fixed point on land, and the legs 17 are extended and contracted to reach a predetermined absolute depth. The horizontality of the device is precisely determined by comparing the water pressure sensor 15 corresponding to the observed mechanical old position with the signals from the remaining three locations.

Previously, water such as slope old etc. was used for leveling 1j like this!
Although a 1ζ device is used, the accuracy is about 0.1 degree,
If the length of horizontal frame 1 is 30 m, the difference between both ends is 5 c.
In addition, the beam of the horizontal pedestal 1 on which the running FI rack 4i.1 travels is deflected due to the movement of the traveling mount 4, which further deteriorates the accuracy.

It is possible that Therefore, there is a method that uses a water pressure sensor that allows the relative height to be determined. Since you can see the relative height, you can level it up from 9 to 9.

The leg 17 is attached to the screw 1 of the hydraulic cylinder 17.
A seated camera 17 is installed through a universal joint 17 to take the load off the device.
When the machine runs, the horizontal resistance force is ← 1J, but at the time of leveling, water is poured into the latch body 12, water Between 15 (1 imperial power and 1-minute l!11 gills J.) In addition, it is an appropriate size that will not damage the foundation mound as much as necessary. Also, hydraulic pressure
．． The hydraulic cylinders of the legs 17 that are operated by the units I and U have a size that is not affected by the unevenness of the water II' (Figure 4). It is a longitudinal cross-sectional view of the state in which the rubble flows in the forward direction in the moving direction, and the stagnation area S in which the rubble hardly flows occurs in the rear. , a leveling surface having a gap of ΔH from the lower end of the waste leveling chute 9 is obtained.

Figure 5 is an explanatory diagram of the first leveling process, and Figure 6 is an explanatory diagram of the second level and subsequent levels. A mound having an inclination angle φ approximately equal to the angle of repose is obtained in a direction perpendicular to the direction in which the dumping and leveling chute 9 moves. From the second row onwards, leveling work is performed with a certain amount of overlap R with the mound leveled on the − row section. In this case, an S region, which is a stagnation region, occurs in the overlapping portion, but the shape of the leveled surface is not disturbed.

As mentioned above, this equipment uses a dumping and leveling method, so there is no scattering of rubble, and it is also capable of highly efficient construction because it performs the dumping and leveling work, which used to be separate processes, at the same time. becomes. In addition, 1 ([Since the discard leveling chute 9 runs sideways, it is possible to level the work with good accuracy without any cuts.In the case of the discard leveling shoe 1 method, the resistance during leveling is Although the force is large, since the discharging leveling chute 9 is moved vertically in 7E lines, the discharging leveling chute 1 and 9 only need to be large enough to avoid clogging, and only require a small driving force. Furthermore, since the water pressure sensor 15 is used to level the horizontal frame 1, the scale of the device can be freely selected.

Since the present invention is configured as described above, the four quadrants (')
It is less susceptible to the influence of I-methods, and can easily cope with deeper water entry and larger IL-trailing, and enables more economical and highly efficient leveling work than the conventional I-method.

[Brief explanation of drawings]

FIG. 1 shows the flat surface of the device of the present invention. ii 1, Figure 2 IF
The same front view, Figure 3 is the same (Y11 side view, Figure 4 is a vertical cross-sectional view when running neatly, Figure 5 is one-row U)
Figure IJJ and Figure 6 are explanatory diagrams of the leveling condition of the second and subsequent rows. I Horizontal mount 2 Rail 3 Wheel 4 Traveling mount 5 Rail 6 Wheel 7 Chute cart 8 Yo, bar 9 Throwing and leveling chute lo Hydraulic unit 10゛Hydraulic unit 11 Hydraulic motor 11゛Hydraulic motor 12 Rack 12' rack ■3 Floating body 14 Wire 15 Water pressure sensor 16 Echo sounder I7 Leg 17゛ Screw 17'' universal step. 17'' Seating plate I8 Hydraulic unit S area Stagnation area
F area Flow area ΔH Distance between the lower end of the dumping leveling chute and the leveling surface n Article R overlap amount ■ Direction of travel Patent applicant Ministry of Transport Second Port Construction Bureau 1 Figure 1 Figure 21 Rough No. 31] Palette 4 Figure Notification 5 Figure 'X8,゛1: 1 1 Figure 6

Claims (1)

[Claims] ■) A leveling machine held as a floating body with support legs that can be leveled for foundation mound construction work on the water bottom: j
-1. A rubble leveling device that levels the ground while supplying stones. 2) A horizontal mount having a floating frame with support legs that is extendable and retractable, and a buoyant body, and a chute cart that runs at right angles to the running gantry that moves laterally on the horizontal mount. 31 [Rubbish leveling according to claim 1 4
Place. 3) The rubble leveling device M according to claim 1, in which water pressure sensors are installed at the four corners of the horizontal pedestal, and the legs can be extended and contracted based on the signals to perform strict leveling.