JP2008069623A - Ground hole drilling device and ground hole drilling construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily treat industrial waste, by preparing a cast-in-place pile of an existing house, without using muddy water uneasy in treatment as compared with water, in a ground hole drilling deice and a ground hole drilling construction method of about 7 m or less, by a vacuum hose of a simple structure using a vacuum. <P>SOLUTION: This ground hole drilling device has the vacuum hose connected to a vacuum car, a water jet nozzle installed in this vacuum hose, a water supply mechanism connected to this water jet nozzle and an air supply mechanism. Since the pile can be prepared by digging a hole without using the muddy water by sucking a mixture of water and earth, the cast-in-place pile of the existing house many in restricting conditions, can be prepared, and the industrial waste can be easily treated without using the muddy water. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a ground drilling device and a ground drilling method, and in particular, by a vacuum hose having a simple structure using a vacuum or the like, with a ground drilling device and a ground drilling method of about 7 m or less, compared to water. The present invention relates to facilitating the disposal of industrial waste by not using muddy water that is not easily treated.

  As a conventional ground drilling method, a reverse method or the like has been proposed.

The reverse construction method of Japanese Patent Application No. 2005-248435 which is Patent Document 1 and Japanese Patent Application No. 2004-214421 which is Patent Document 2 is muddy water (usually bentonite (special clay mineral) dissolved in water with a specific gravity of about 1.03-
This is a method of circulating (adjusted to 1.08). In the conventional reverse construction method, mud is used for holding the hole wall and carrying out the drilled soil to the ground when drilling. Such muddy water is an industrial waste that is difficult to treat as compared to water, and thus has a problem of increasing the cost of treating the industrial waste. In the above conventional reverse method, the outer diameter is about 600.
This is a construction method in which a cast-in-place pile of mm to 3,000 mm is constructed using a large crane vehicle. For this reason, the reverse method could not be used to create cast-in-place piles for existing houses with many restrictions such as densely populated residential areas and houses in contact with narrow roads.
Japanese Patent Application No. 2005-248435 Japanese Patent Application No. 2004-211141

The present invention, the muddy water used in the reverse method of the conventional method,
The purpose is to reduce the cost of processing industrial waste by improving the system so that it is not used.
In the conventional reverse method, the outer diameter is about 600 mm to 3,
This is a method of constructing a cast-in-place pile of 000 mm using a large crane vehicle. For this reason, the reverse method could not be used to create cast-in-place piles for existing houses with many restrictions such as densely populated residential areas and houses in contact with narrow roads. In order to solve such problems, cast-in-place piles such as existing houses with many restrictions by using a ground drilling device and ground drilling method that create a pile of about 7m or less with a simple structure such as a vacuum hose. Is to create.

In order to achieve the above object, the present invention provides a first solving means comprising a vacuum vehicle, a vacuum hose connected to the vacuum vehicle,
Having a water jet nozzle attached to the lower part of the vacuum hose, and a water supply mechanism connected to the water jet nozzle;
Create cast-in-place piles for existing houses with many constraints.
.

Further, the second solving means includes a vacuum wheel, a vacuum hose connected to the vacuum wheel, and a water supply mechanism connected to a water jet nozzle attached to the lower part of the vacuum hose. A ground drilling device is installed at a position where a cast-in-place pile is created, water is pumped from a water supply mechanism to a water jet nozzle, and a mixture of water and soil is sucked with a vacuum hose by operating a vacuum vehicle. To drill a hole with a depth of about 7 m or less to form a place pile. Thus, the muddy water as industrial waste used by the conventional construction method is not used.

Further, the third solving means includes a vacuum vehicle, a vacuum hose connected to the vacuum vehicle, a water jet nozzle attached to a lower portion of the vacuum hose, and a connection to the water jet nozzle. A water supply mechanism and an air supply mechanism attached to the vacuum hose to create a cast-in-place pile such as an existing house with many restrictions, and to improve the discharge efficiency of the mixture of water and soil Plan.

Further, the fourth solution is that a vacuum vehicle, a vacuum hose connected to the vacuum vehicle, a water jet nozzle attached to a lower portion of the vacuum hose, and the water jet nozzle are connected to the vacuum vehicle. A ground drilling device having a water supply mechanism and an air supply mechanism attached to the vacuum hose is installed at a position where a cast-in-place pile is formed, and water is supplied from the water supply mechanism to a water jet nozzle for excavation. By sucking a mixture of water and soil with a vacuum hose by operating a vacuum vehicle, a depth of about 7 m or less is drilled and a place pile is efficiently formed.
Thus, the muddy water as industrial waste used by the conventional construction method is not used.

Further, the fifth solving means includes a vacuum wheel, a vacuum hose connected to the vacuum wheel, a drilling blade attached to a lower portion of the vacuum hose, and the vicinity of the outer peripheral surface of the vacuum hose. And cast-in-place piles such as existing houses with many constraints.

Furthermore, the sixth solution means a vacuum wheel, a vacuum hose connected to the vacuum wheel, a drilling blade attached to the lower part of the vacuum hose, and an outer peripheral surface of the vacuum hose. A pile construction device with a water storage pit provided in the vicinity is installed at the place where the cast-in-place pile is constructed, and the water supplied from the water supply hose and the soil and water mixture dug by the drilling blade The water / soil mixture is sucked with a vacuum hose by operating a vacuum car, and the water / soil mixture is sucked with a vacuum hose by driving a vacuum car. Make a place pile by drilling.

The present invention can create a cast-in-place pile of about 7 m or less by sucking a mixture of soil and water cut with water from a water jet nozzle with a vacuum hose connected to a vacuum vehicle. .
For this reason, cast-in-place piles such as existing houses with many restrictions such as densely populated residential areas and houses in contact with narrow roads can be created.

In the present invention, a ground drilling device having a water jet nozzle and a water supply hose attached to a vacuum hose is installed at a place where a cast-in-place pile of about 7 m or less is created. In such a state, a mixture of soil and water cut with water from the water jet nozzle is made, and the mixture of water and soil is sucked with a vacuum hose by operating the vacuum vehicle.
In this way, holes can be dug without using muddy water.
Therefore, muddy water generated in the conventional reverse method is not generated in the ground drilling method of the present invention.
For this reason, in the ground drilling method of this invention, the disposal cost of the muddy water used as industrial waste reduces, and the economic effect is remarkable compared with the past.

In addition, the present invention is configured to suck a mixture of soil and water, which is cut with water from a water jet nozzle, with a vacuum hose connected to a vacuum wheel, and air from an air supply mechanism is cut. Since the discharge of the mixture of soil and water is promoted, cast-in-place piles of about 7 m or less can be efficiently created.
For this reason, cast-in-place piles such as existing houses with many restrictive conditions such as dense residential areas and houses in contact with narrow roads can be efficiently created.

In the present invention, a ground drilling device having a water jet nozzle, a water supply hose, an air supply mechanism, and the like attached to a vacuum hose is installed at a place where a cast-in-place pile of about 7 m or less is created.
In such a state, the mixture of soil and water cut from the water jet nozzle is sucked by the vacuum hose by the operation of the vacuum vehicle, and the air from the air supply mechanism is mixed with the soil and water. Since body discharge is promoted, cast-in-place piles of about 7 m or less can be efficiently created.
For this reason, cast-in-place piles such as existing houses with many restrictive conditions such as dense residential areas and houses in contact with narrow roads can be efficiently created.
Therefore, muddy water generated in the conventional reverse method is not generated in the ground drilling method of the present invention.
For this reason, in the ground drilling method of this invention, the disposal cost of the muddy water used as industrial waste reduces, and the economic effect is remarkable compared with the past.

In addition, it is possible to create a cast-in-place pile of about 7 m or less by sucking the mixture of water and soil fed to the place dug by the excavating blade with a vacuum hose connected to the vacuum car. . For this reason, dense residential areas
It is possible to create cast-in-place piles such as existing houses with many constraints such as houses in contact with narrow roads.

The above ground drilling device has a simple structure as compared to the conventional reverse method and the like.
For this reason, the price of the whole apparatus including the vacuum vehicle etc. of this invention is cheap and economical compared with the past.

Furthermore, the present invention provides a drilling blade attached to a vacuum hose;
A ground drilling device having a water storage pit provided in the vicinity of the outer peripheral surface of the vacuum hose is installed at a place where a cast-in-place pile of about 7 m or less is created. In such a state, by making a mixture of the water supplied from the water supply hose and the soil dug by the excavating blade, by sucking this water and soil mixture with the vacuum hose by the operation of the vacuum car, Dig a hole. In this way, holes can be dug without using muddy water.
For this reason, in the ground drilling method of this invention, the disposal cost of the mud which becomes an industrial waste reduces, and the economic effect is remarkable compared with the past.
The above ground drilling device has a simple structure as compared to the conventional reverse method and the like.
For this reason, the price of the whole apparatus including the vacuum vehicle etc. of this invention is cheap and economical compared with the past.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

FIG. 1 is an explanatory diagram of a schematic configuration showing a first embodiment of a ground drilling device. The ground drilling device 1 has a vacuum hose 10 made of a synthetic resin or the like having an outer diameter of about 300 mm and a length of about 10 m. A water jet nozzle 11 as a tip device is attached to the tip of the vacuum hose 10. As shown in FIG. 2, the water jet nozzle 11 is formed in a ring shape, and three nozzles are attached at positions where jetting is performed in the direction of the arrow on the outside.
Each is attached at a position where it is ejected in the direction of the arrow on the inside, and a total of six are attached at equal intervals. As shown in FIG. 2, the water jet nozzle 11 has a hose-shaped water pipe 12 formed in a ring shape. The water supply pipe 12 is connected to a water supply hose 13, and the water supply hose 13 is connected to a pump (not shown). An upper end of the vacuum hose 10 is connected to a vacuum wheel 14. Reference numeral 15 denotes a mixture of water and soil. In FIG. 1, only the arrow that the water jet nozzle 11 injects to the outside is displayed, and the arrow that injects to the inside is omitted.

The amount of water from the water jet nozzle 11 includes a method of reducing the amount of water on condition of high pressure injection of about 10 to 20 Mpa and a method of increasing the amount of water on condition of low pressure injection of about 0.5 to 1.0 Mpa. Select in consideration of geology.

In the ground drilling apparatus which is 1st Example of the said structure, the said hose 10 for vacuum is arrange | positioned in the place which builds a pile.
In such a state, when the amount of water is increased by a water supply hose 13 connected to a water supply pump (not shown), a water jet is ejected from a water jet nozzle 11 which is a tip device.
The water is cut by the water jet ejected from such a water jet nozzle 11.
The soil cut in this way is mixed with the water jetted from the water jet nozzle 11 to form a water / soil mixture 15, which is mixed by the vacuum hose 10. It is sucked into the vacuum wheel 14.

FIG. 3 is an explanatory diagram of a schematic configuration showing a second embodiment of the ground drilling device, and the same parts as those in the first embodiment are denoted by the same reference numerals. In FIG. 3, the ground drilling device 1 has a vacuum hose 10 made of a synthetic resin or the like having an outer diameter of about 300 mm and a length of about 10 m. This vacuum hose 10
A water jet nozzle 11 which is a tip device is attached to the tip of the nozzle. As shown in FIG. 2, the water jet nozzle 11 is formed in a ring shape, and three nozzles are attached at positions where jetting is performed in the direction of the arrow on the outside.
Each is attached at a position where it is ejected in the direction of the arrow on the inside, and a total of six are attached at equal intervals. As shown in FIG. 2, the water jet nozzle 11 has a hose-shaped water pipe 12 formed in a ring shape. The water supply pipe 12 is connected to a water supply hose 13, and the water supply hose 13 is connected to a pump (not shown). An air supply hole 16 is attached to the vacuum hose 10. An air hose 17 is connected to the air supply hole 16, and the air hose 17 is connected to a pump (not shown). Thus, in the second embodiment shown in FIG. 3, unlike the first embodiment,
An air supply mechanism including an air supply hole 16 and an air hose 17 is formed. An upper end of the vacuum hose 10 is connected to a vacuum wheel 14. Reference numeral 15 denotes a mixture of water and soil. Note that FIG.
As in the second embodiment, only the arrow that the water jet nozzle 11 injects to the outside is displayed, and the arrow that injects to the inside is omitted.

The amount of water from the water jet nozzle 11 is the same as in the first embodiment, in which the amount of water is reduced under the condition of about 10-20 MPa high pressure injection and the low pressure injection of about 0.5-1.0 MPa. There is a method to increase the amount of water, and it is selected considering the geology. Further, from the air supply hole 15, 0.1 to 0.1
1.7 MPa of air is supplied.

In the ground drilling apparatus which is a 2nd Example of the said structure, the said hose 10 for vacuum is arrange | positioned in the place which builds a pile.
In such a state, when the amount of water is increased by a water supply hose 13 connected to a pump (not shown), a water jet is ejected from a water jet nozzle 11 which is a tip device. The water is cut by the water jet ejected from such a water jet nozzle 11. Further, air of 0.1 to 1.7 MPa is supplied from the air supply hole 16 by the air hose 17.

As described above, in the ground drilling device of the second embodiment, the air hose 17
As a result, air of 0.1 to 1.7 MPa is supplied from the air supply hole 16.
Compared with the first embodiment, the discharge efficiency of the water / soil mixture 15 is improved.

FIG. 4 is an explanatory diagram of a schematic configuration showing a third embodiment of the ground drilling device. The ground drilling device 1 has a vacuum hose 20 made of a synthetic resin or the like having an outer diameter of about 300 mm and a length of about 10 m. At the lower end of the vacuum hose 20, the outer end is made of steel or the like and has an outer diameter of about 3 mm.
A 50 mm excavating blade 21 is attached, the tip of the excavating blade 21 is inclined at about 20 degrees, and a water supply hole 21A is formed.
In a state where the vacuum hose 20 is disposed at a place where a pile is constructed, a water storage pit 22 is provided, and water is supplied to the water storage pit 22 from a water supply hose 23. An upper end of the vacuum hose 20 is connected to a vacuum wheel 24, and the vacuum wheel 24 is integrated and has mobility. Reference numeral 25 denotes a water passage, and 26 denotes a mixture of water and soil.

In the ground drilling apparatus 1 which is a 3rd Example of the said structure, the said hose 20 for vacuum is arrange | positioned in the place which builds a pile. In this state, the vacuum hose 20 is made to enter and embed in the soil by repeating up and down movement manually. In this case, the outer diameter of the excavating blade 21 is about 350.
On the other hand, the outer diameter of the vacuum hose 20 is about 300 mm, so that a water supply path 25 is formed on the outer peripheral surface of the vacuum hose 20. When water is stored in the water storage pit 22, it is immersed in the outer peripheral surface of the vacuum hose 20 and supplied to the inside of the excavating blade 21 through the water supply hole 21 </ b> A, thereby forming a mixture 26 of water and soil. Since the water / soil mixture 26 is sucked into the vacuum hose 20 by the operation of the vacuum wheel 24, a hole can be dug.

The above-described ground drilling apparatus and ground drilling method according to the present invention are not limited to the above-described embodiments, and there are various application examples and modifications.
The vacuum hose 10 and the vacuum hose 20 may be configured to have an outer diameter of about 150 mm to 400 mm depending on geology or the like. Further, the tip of the excavating blade 21 may be inclined at about 10 to 30 degrees. Furthermore, the vacuum hose 10 and the vacuum hose 20 are made of steel depending on geology or the like.

BRIEF DESCRIPTION OF THE DRAWINGS It is schematic structure explanatory drawing which shows 1st Example of the ground drilling apparatus concerning this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is schematic structure explanatory drawing of the water jet nozzle in 1st Example of the ground drilling apparatus concerning this invention. It is schematic structure explanatory drawing which shows 2nd Example of the ground drilling apparatus concerning this invention. It is schematic structure explanatory drawing which shows 3rd Example of the ground drilling apparatus concerning this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Ground drilling device 10 ... Vacuum hose 11 ... Water jet nozzle 12 ... Water supply pipe 13 ... Water supply hose 14 ... Vacuum wheel 15 ... Mixture of water and soil DESCRIPTION OF SYMBOLS 16 ... Air supply hole 17 ... Air hose 20 ... Vacuum hose 21 ... Excavation blade 21
21A ... Water supply hole 22 ... Water storage pit 23 ... Water supply hose 24 ... Vacuum car 25 ... Water supply channel 26 ... Water and soil mixture

Claims (6)

A vacuum wheel, a vacuum hose connected to the vacuum wheel, a water jet nozzle attached to the vacuum hose,
A ground drilling device having a water supply mechanism connected to the water jet nozzle. A vacuum wheel, a vacuum hose connected to the vacuum wheel, a water jet nozzle attached to the vacuum hose,
A ground drilling device having a water supply mechanism connected to the water jet nozzle is installed at a position where a cast-in-place pile is formed, and excavation is performed by water supply from the water jet nozzle, and a mixture of water and soil is obtained. A ground drilling method characterized in that a place pile is formed by drilling to a predetermined depth by suction with the vacuum hose. A vacuum wheel, a vacuum hose connected to the vacuum wheel, a water jet nozzle attached to the vacuum hose,
A ground drilling device comprising: a water supply mechanism connected to the water jet nozzle; and an air supply mechanism attached to the vacuum hose. A vacuum wheel, a vacuum hose connected to the vacuum wheel, a water jet nozzle attached to the vacuum hose,
A ground drilling device having a water supply mechanism connected to the water jet nozzle and an air supply mechanism attached to the vacuum hose is installed at a position for forming a cast-in-place pile, and the water jet nozzle A ground drilling method characterized by excavating with a water supply from the water and sucking a mixture of water and soil with the vacuum hose to form a place pile by drilling to a predetermined depth. A vacuum wheel, a vacuum hose connected to the vacuum wheel, a digging blade attached to the vacuum hose, and a water storage pit provided in the vicinity of the outer peripheral surface of the vacuum hose. A ground drilling device characterized by that. A vacuum wheel, a vacuum hose connected to the vacuum wheel, a drilling blade attached to the vacuum hose, and a water storage pit provided in the vicinity of the outer peripheral surface of the vacuum hose A ground drilling device is installed at a position where a cast-in-place pile is created, drilled with the excavating blade, and a mixture of water and soil is sucked with the vacuum hose to drill a hole to a predetermined depth. A ground drilling method characterized by forming a place pile.

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