JPS594026B2 - Air-hydraulic propulsion method using pressure energy - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air-hydraulic propulsion method using pressurized air energy.

It is a systemized method that uses not only water, but also grout injection, lubricant injection, muddy water drainage, and muddy water dewatering pressure energy. It is characterized by having the following.

Conventional hydraulic propulsion methods require a pump to give energy to the water and a hydraulic jack to correct the direction and slope of the cutting edge, and electric circuits or hydraulic equipment are required to operate the motors of these prime movers. It requires equipment that requires a large amount of money, such as equipment, equipment, high-pressure pipes, cable lines, etc., and it also requires a large amount of money to manufacture a cutting edge equipped with the above equipment. .

According to the construction method of the present invention, there is no need for equipment and equipment that require a large amount of money as described above, so the cost of equipment, equipment, etc. can be reduced to a large extent.

Therefore, costs can be significantly reduced.

Next, an example will be specifically explained using a mechanism diagram.

Water from the settling tank 1 is supplied from the vertical pipe of the T-pipe 5 through the water supply pipe 2, and compressed air from the compressor 3 is supplied from the air supply port of the horizontal pipe of the T-pipe 5 through the air hose 4. .

The structure of the T-pipe 5 is that the vertical pipe has a connection part for a lubricant hose 28 and a dewatering hose 26 in addition to the connection part for the water supply pipe 2 described above, and the inside of the horizontal pipe has a small diameter pipe. It has a structure in which it is connected to an air hose 4 that supplies air to this pipe.

The interior of the T-pipe 5 is under negative pressure due to the rapid air flow exhausted from the pipe.

The supplied water becomes air water due to the airflow on the exhaust port side, and is sent to the air distribution water type 1 by the air water pipe 6 connected to the exhaust port side of the T-pipe 5.

The air distribution water type 1 includes a core removal nozzle pipe 1 equipped at the blade mouth 12.
4° 4-quadrant nozzle 13, a former cock 10 for controlling air and water that supplies air and water to the resistance elimination nozzle pipe 15, and a coring nozzle cock 19.4-quadrant nozzle cock 17.1B attached thereto.
, 20, 21, cocks 16 and 22 for resistance eliminating nozzles, etc., and a bypass pipe 8 for returning air water to the sedimentation tank when air water is not used for excavation, and a bypass pipe cock 9.

The air distribution water type 7 has a function of controlling air and water by operating the cock described above, and can perform most effective excavation according to the progress of propulsion.

As we proceed with the propulsion works, we will explain them step by step starting from the date.

Water is supplied from the shaking and sedimentation tank 1 through the water supply pipe 2 and from the vertical pipe of the T-pipe 5, and compressed air is also supplied from the compressor 3 to the horizontal pipe of the T-pipe 5 through the air hose 4.

At this time, the water becomes air water due to the air flow faster than the exhaust port, and reaches the air distribution earthenware vessel 7 through the air supply water pipe 6.

For air and water, close the nozzle source cock 10 attached to the air distribution device 1, open the bypass pipe cock 9, and drain the muddy water drain pipe 11.
The water is returned to the settling tank 1 through the tank.

Observe the condition of the discharged air water and adjust the amount of water supplied.

The amount of water supplied is adjusted depending on the quality of the excavated soil and the amount of excavation, but for normal soils it is approximately 250 volumes per 1000 volumes of air supply.

Next, the nozzle source cock 10, followed by the coring nozzle cock 19.4-quadrant nozzle cock 17.18°20.21.
Open the resistance elimination nozzle cocks 16 and 22 one after another, observe the state of air water jetting from the nozzles, adjust the degree of opening and closing of each cock, and record the degree. Use as a reference.

Next, open the bypass pipe cock 9, close the nozzle source cock 10, switch to bypass air supply water, temporarily stop the injection from the nozzle, and use the main pushing device to push the pipe into the ground at the inlet where the mine loe has been constructed. The cutting edge 12 attached to the tip of the blade is press-fitted, and the pressing is temporarily interrupted.

Next, Kotoku 11゜18.20.21 for 4 quadrant nozzle
．． After closing the resistance elimination cocks 16 and 22, the nozzle source 10 is opened, the bypass air supply water is switched to the bypass pipe cock 9, and the bypass pipe cock 9 is closed to switch to airy excavation.

At this time, the coring nozzle cock 19 is fully opened, and the nozzle of the coring nozzle pipe 14 injects the core to intensively perform core excavation, expanding the free surface and facilitating excavation around it.

The water in the injected air water is adsorbed by the earth and sand being excavated and becomes muddy water, which flows into the muddy water intake port 32 at the bottom of the cutting hole 12 and is simultaneously supplied with compressed air to create a connection between the cutting hole 12 and the excavation surface. The narrow space becomes pressurized and is immediately discharged into the sedimentation tank 1 through the muddy water drain pipe 11 connected to the muddy water intake port 32.

Here, the muddy water intake port 32 has a removable structure provided with a net that captures gravel with a diameter of 5 am or more.

When the core drilling in the center has progressed to about 1 to 1 mm of the diameter of the cutting edge, open the 4-quadrant cock 11° 4 18, 20, 21 and the resistance elimination cock 16° 22, and open the 4-quadrant nozzle. Air and water are injected from the nozzle of the pipe 13 and the nozzle of the resistance eliminating nozzle pipe 15 to excavate the excavation, and the main push device is operated to proceed with propulsion.

During propulsion, observe the propulsion status and operate the nozzle cock to propel the vehicle along the planned route.

It goes without saying that we will promote the project so that it does not deviate from the line, but if it does, it must be corrected.

You must observe how it comes off and perform appropriate cock and push operations accordingly. For example, if it comes off upwards, the nozzle cocks 13, 4th quadrant nozzle cocks 17, 21.
Then, the resistance eliminating nozzle cock 16, 22 is opened wide, the jet of air and water is strengthened, and more of the lower part is excavated, and as the propulsion progresses, it is corrected by the weight of the cutting edge 12 and the pipe body.

If it comes off downward, open the first and second quadrant nozzle cocks 20.18 wide to intensify the injection and excavate more of the upper part, reduce the resistance at the upper part, and open the nozzle cock 16° for resistance elimination. 22 and stops the injection of air water from the nozzle, the ground in front is not excavated, so the resistance with the resistance plate 23 that forms the angle of attack increases, and as the propulsion progresses, it is corrected upward. Ru.

As you can see from the above examples, excavate more on the side to be repaired to reduce resistance from the ground.

Here, the resistance plate 23 is located at the center of each of the third and fourth quadrants of the blade mouth 12, and the portion corresponding to the circumference of the blade 12 is approximately 10 degrees with respect to the direction of travel. It has a structure in which a gap is provided at the rear through which the excavated mud can pass, and a resistance eliminating nozzle pipe 15 is installed at the front.

Next, the muddy soil discharged into the sedimentation tank 1 is transferred to the dewatering tank 2.
Transfer to step 4 and dehydrate.

For dehydration, a conical dehydration pipe 25 is installed in the center of the dehydration tank 24.
The dewatering hose 26 connected to the T-tube 5 is connected to the side of the vertical pipe of the T-tube 5. Due to the high flow rate of compressed air supplied from the air hose 4, the inside of the T-tube 5 becomes negative pressure, and the water in the mud drains. At the same time as it is sucked in, it is discharged from the dewatering hose 26 connected to the horizontal pipe of the T-tube 5 and used as excavation water.

Here, the inside of the dewatering pipe 25 is filled with a filter material, and has a structure that allows a lot of muddy water to pass through.

When injecting lubricant after propulsion has progressed to a certain extent,
In order to mix and adjust the lubricant with the mixer 21, the stirring pipe 3
The agitation air hose 31 is connected to the air hose 4 so as to blow out air from a large number of radiators on the side of the 0, and air is supplied thereto.

Further, the lubricant from the mixer 21 is connected to a connector on the side of the vertical pipe of the T-tube 5 by a lubricant hose 28, and the lubricant is supplied to the horizontal pipe of the T-pipe 5 from the air hose 4. Due to the pressure of the compressed air, the air is forced through an air supply water pipe 6 connected to the exhaust port of the horizontal pipe, and is injected through a lubricant injection pipe 29 connected to the air supply pipe 6.

In the case of grout injection, the function of lubricant injection can be used as is.

As mentioned above, this construction method is a systemized mechanism that uses almost all the pressure energy of compressed air, except for the main push device, and since the mechanism is mostly composed of pipes, mechanical rotation is required. Machines with no parts, low failure rate, easy operation management, and high costs,
Since no equipment is required, costs can be significantly reduced.

This method is an extremely efficient method for excavating horizontal holes mainly in relatively soft ground such as normal soil, silt, and sand.

Therefore, the air discharge amount is 1 m'/m, and the Lember pressure cuff is 9
The outline of the case using pressure energy of /crA will be described quantitatively.

In this case, the propulsion speed is 4 cm/m, and the air supply water pipe diameter is 5 cr/m.
L, muddy water drainage pipe diameter 5 crn, air, water, soil ratio 1000 volume: 250 volume = 80 volume, outer diameter 1.5 m,
A pipe with a length of 2.43 mm can be penetrated underground to a depth of 60 m in one hour.

Note that the flow velocity in the air supply water pipe is approximately 8.5 m/s.

[Brief explanation of the drawing]

The drawing is a system diagram of the construction method according to the present invention. 1... Sedimentation tank, 2... Water supply pipe, 3... Compressor, 4... Air hose, 5... T pipe, 6...
Air supply water pipe, 1...Air distribution water 5.8...Bypass L 9
... Bypass pipe cock, 10... Nozzle source cock,
11...Muddy water drain pipe, 12...Blade mouth, 13...4
Quadrant nozzle pipe, 14... Coring nozzle pipe, 15... Resistance eliminating nozzle pipe, 16.22... Cock for resistance eliminating nozzle, 17.18, 20° 21... Cock for 4 quadrant nozzle , 19... Coring nozzle cock, 23... Resistance plate, 24... Dehydration tank, 25... Dehydration pipe, 26...
・Dehydration hose, 27...Mixer, 28...Lubricant hose, 29...Lubricant injection pipe, 30...Stirring vibrator, 31...Stirring air hose, 32...Muddy water intake mouth.

Claims (1)

[Claims] 1. Water is heated to T by the pressure energy of an air compressor.
Compressed air is supplied to the vertical pipe of the pipe, compressed air is supplied to the air supply port of the horizontal pipe, and water is sent to the air water pipe as air water from the exhaust port of the horizontal pipe. Connect this to the air distribution water type, connect it to the core removal nozzle pipe, quadrant nozzle pipe, and resistance elimination nozzle pipe equipped on the blade mouth from the air distribution water type, and attach air water to the air distribution water type. By operating the cock, air and water are injected from the nozzle, and the propulsion route is corrected by coring, drilling in each quadrant, the resistance of the resistance plate attached to the cutting edge, and the drilling method in each quadrant. Air-hydraulic propulsion method.