JPS63223294A - Soil and sand excavating and discharging device for vertical type excavator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an earth and sand excavation/discharge device for a full-swivel vertical excavator and a swing-type vertical excavator using the all-caging construction method.

(Prior Art) A conventional example of the above-mentioned fully rotating vertical excavator will be explained as follows.
The drive device of the excavator body pushes the tubular casing tube into the ground while making a full turn, and the winch drops a hammer grab via a wire rope onto the earth and sand in the casing tube to excavate the same earth and sand. The structure is such that the same wire rope is used to wind it up and discharge it outside the human body, and the above operation is repeated intermittently to excavate the ground vertically.

(Problems to be Solved by the Invention) The conventional vertical excavator excavates and discharges the earth and sand in the cylindrical casing tube by the fall of the hammer grab, which requires a lot of labor and time to excavate the hammer grab. However, a skilled driller requires a rotor, generates a lot of noise and disturbs the environment around the site, and when excavating underwater, the penetration of the cutting edge of the hammer grub becomes extremely poor), reducing excavation efficiency. There is a problem with this.

In addition, the conventional excavation method using high-pressure, high-speed jet water has a limit to the depth of excavation because once it reaches a certain depth, the surrounding earth and sand collapses, making it impossible to excavate. It requires great skill to secure the hole, and the larger the hole diameter, the more difficult it is to excavate.It is not a practical method for excavating large diameters and deep holes.

(Means for Solving Problems) The present invention is an earth and sand excavation/discharge device for a vertical excavator developed to solve the above-mentioned problems. A vertical excavator that penetrates the casing tube into the ground and excavates and discharges the earth and sand in the casing tube, which is equipped with a jet water jet that penetrates into the earth and sand in the casing tube that has penetrated into the ground. Equipped with a delivery pipe with a jet nozzle for use in the earth and sand, and a sag pipe for discharging the earth and sand penetrated into the earth, it is possible to continuously excavate and discharge earth and sand in the tubular casing tube that penetrates into the ground. This greatly improves performance and work efficiency, and solves the problems mentioned above.

(Function) The eve penetrates the earth and sand in the tubular casing tube that is penetrated into the ground, and jet water is injected into the earth and sand, stirring the earth and sand, and The earth and sand stirred by the penetrated pipe is sucked in and continuously discharged as muddy water mixed with earth and sand, and the casing tube prevents landslides around the casing tube and ensures a large cross-sectional area and straightness. As a result, the earth and sand inside the casing tube is efficiently and continuously excavated and discharged.

(Embodiment) Fig. 1 shows a first embodiment of the present invention, in which (1) is a tubular casing tube with a digging blade at its lower end;
Delivery pipe with jet nozzle (2G), (3)
is a saxilan pipe with a sand suction port (3G),
Delivery pipe (2) with jet nozzle (2α) is
High pressure water supply pipe (10(S)) with water pressure pump (5)
A mud pipe (3) with a dirt suction port (34) is connected to a mud water discharge pipe (106) having a mud pump (6) and a dirt needle (7), and is pushed into the ground. A vertical excavator is equipped with a casing tip (1) that penetrates the casing tube (1) into the ground, excavates and discharges earth and sand (Eo) inside the casing tube. A delivery pipe (2) with a jet nozzle (25) for jet water injection penetrates into the earth and sand (E□) in the penetrated casing tube (1).
) and an earth and sand excavation/discharge device of a vertical excavator equipped with a stub pipe (3) for earth and sand discharge that penetrates the earth and sand (-).

To explain in more detail, the jet nozzle (2a) provided at the lower end of the delivery pipe (2)
2), high pressure water supplied from the water pressure pump (5) passes through the high pressure water supply pipe (10 (1) and the delivery pipe (2) to a plurality of jet nozzles. Jet water is injected from (2,) in the direction of the arrow, into the earth and sand (E□) inside the casing tube (1) that has penetrated into the ground (1!
X1) is stirred by injection of jet water.

The earth and sand suction port (3G) provided at the lower end of the sac ventilation pipe (3) is formed with the lower end of the sac drainage pipe (3) open, and is as shown in the figure with respect to the jet nozzle (2α). It is preferable to place it at a moderately high level, so that the earth and sand being stirred by the mud pump (6)
E□) is sucked in from the earth and sand suction port (3a), and is turned into muddy water mixed with earth and sand through the comb pipe (3) and the muddy water discharge pipe (
106), and the amount of discharged sediment in the muddy water is detected by a sediment indicator (force).

Furthermore, when excavating the earth and sand (E Securing the water level of <C> and removing soil (E) by jet injection
o) The stirring excavation efficiency is enhanced.

(Other Embodiments) FIG. 2 shows a second embodiment of the present invention. Compared to the first embodiment, the jet nozzle (126) t provided at the lower end of the delivery pipe (2), The delivery pipe (2) is characterized by a configuration in which a plurality of them are disposed toward the side of the lower end, and the jet water jetted from the jet nozzle (12g) is ejected as shown by the arrow, and as shown in the figure, the lower end When spraying intensively in the side direction, use the Divari pipe (2)
At the same time, the jet nozzle (12 cL) is rotated to remove earth and sand (-
) to cover the entire area, and also to ensure delivery, Rive (2)
It is also possible to arrange the jet nozzle (12 (1)) around the entire circumference so as to inject jet water toward the side of the lower end portion of the casing tube (1), which is advantageous when the diameter of the casing tube (1) is large. , and other configurations are similar to those of the first embodiment.

The embodiment of the present invention has the above-described structure, and the multi-tubular casing tube (1) is pushed into the soil by an appropriate drive device of the excavator main body, and
A water field (C) is formed on the earth and sand (Eo) in the casing tube (1), and the water level is maintained by appropriate means, and in the same earth and sand (-), delivery ,R
The tube (3) is penetrated as shown and the water pressure pump (5) is inserted.
), the high aqua regia flows through the high pressure water supply pipe (10c&) and the delivery pipe (2) to multiple jet nozzles (2cL,
12α) to the amount of sediment) is injected as jet water,
While the earth and sand (-) are stirred, the mud pump (6)
The soil (-) that is stirred is sucked in from the soil suction port (3a) and discharged through the muddy water discharge pipe (106) and into the muddy water. The amount of discharged earth and sand is detected by the earth and sand needle (7), and the excavation and discharge of earth and sand (E work) is managed.

The excavation is carried out by pushing the tubular casing tube (1) through the jet nozzle (2cL, 12e).
ft Delivery Pipe (2) and Sakushi's Secret Service Eve (3)
) to inject jet water into the earth and sand (El) in the casing tube (1) and discharge the earth and sand, that is, the earth and sand (
The casing tube (1) prevents landslides in the surrounding area and ensures a high-loss cross-sectional shape and verticality. ) The jet water injected into the soil (E□) effectively stirs the soil (E be done.

(Effects of the Invention) The present invention has the above-described configuration, and a delivery pipe with a jet nozzle penetrates into the earth and sand in a tubular casing penetrated into the ground, and jet water is injected into the earth and sand. At the same time, the agitated earth and sand are sucked into the sac pipe penetrated into the earth and sand and discharged as muddy water, which prevents landslides around the casing tube. At the same time, a large loss cross-sectional area and straightness are ensured, and as the casing tube penetrates, the earth and sand inside the casing tube are effectively excavated and discharged (by jet water), significantly improving excavation performance and efficiency. .

In addition, the structure has been simplified to the extent that a delivery pipe with a simple jet nozzle and a sag pipe are installed inside the casing tube, and the drilling hole diameter can be freely selected. ing.

Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design modifications can be made without departing from the spirit of the present invention. .

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention, and FIG. 2 is a longitudinal sectional view showing a gz embodiment.

Claims (1)

[Claims] In a vertical excavator that is equipped with a tubular casing tube that is penetrated into the ground, the casing tube is penetrated into the ground, and earth and sand inside the casing tube is excavated and discharged. Earth and sand excavation and discharge equipment for a vertical excavator, characterized in that it is equipped with a delivery pipe with a jet nozzle for jet water injection that penetrates the earth and sand in a tube, and a suction pipe that penetrates the earth and sand and discharges the earth and sand. .