JP2003227128A - Drain driving method and drain driving apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate an inconvenience of a conventional drain driving method and a conventional drain driving apparatus, such as an increase in construction cost, because the conventional drain driving method requires additional preceding excavation by a machine or employment of a large machine if the ground is cohesive ground mixed with mudstone, lower ground of cement solidified soil, or ground mixed with hard soil such as sand gravel layer lower ground. <P>SOLUTION: According to a new drain driving method and a new drain driving apparatus, a casing having an acute head formed at the tip thereof or having a breaker attached to the tip thereof is driven to hard ground together with a board drain, and the hard ground is crushed by the breaker at the tip. Then, the casing is driven to soft ground, and the breaker and the casing are drawn from the soft ground while the drain is left as it is. A crushing bit of the breaker may be stored in the casing as needed. Alternatively, the casing having a boring head with closed blades attached to the tip thereof is driven to the hard ground together with the board drain, and the boring head has its blades expanded to crush the hard ground. Then, the casing is driven to the soft ground by closing the blades of the boring head, and the boring head and the casing are drawn from the soft ground while the drain is left as it is. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain driving method and apparatus, and more particularly to a drain driving method and apparatus that does not require a pre-drilling.

[0002]

2. Description of the Related Art Conventionally, in order to improve a soft ground, a paper or plastic board drain is placed on the soft ground.

[0003] However, the above-mentioned conventional casting device is applicable to soils from super-soft ground with N value 0 indicating hardness to slightly hard ground with N value 15 and the clay is a mudstone-mixed viscous material that cannot be punched with a casing. For ground mixed with hard soil such as ground, cement-based solidified soil lower ground, and gravel layer lower ground, earth auger or H-shaped steel is used for pre-drilling, or a large-sized placing machine that can be applied to hard ground A means of using a placing machine equipped with a vibro hammer on the upper part of the casing is used.

FIG. 13 shows a conventional casing type drain placing device, 1 is a hard ground, 2 is a soft ground therebelow, 3 is a casing type drain placing device placed on the hard ground 1, and 4 is A casing 5 which is driven from the drain driving device 3 so that its tip reaches the soft ground 2, and a plastic board drain 5 having a drain anchor at its tip which is inserted into the casing 4.
6 is a drilling machine used separately, 7 is the earth auger.

[0005]

When performing pre-drilling with a separately used machine as described above, a large increase in construction cost is a problem, and when a large-sized placing machine with a small number of owned machines is used. There are problems such as delay in construction period due to the limited number of machines and limited number of machines used, and lack of ground support capacity due to large machine weight.

An object of the present invention is to solve the above problems.

[0007]

DISCLOSURE OF THE INVENTION A drain driving apparatus according to the present invention comprises a drain driving casing, a sharp head provided at the tip of the driving casing, and a board arranged on one side of the sharp head. It is characterized by consisting of a drain.

Further, the drain driving apparatus of the present invention comprises a drain driving casing, a breaker having a crushing bit provided at the tip of the driving casing, and a means for storing the crushing bit in the casing. It is characterized by comprising a board drain arranged on one side of the crushing bit.

Further, the drain driving apparatus of the present invention comprises a drain driving casing, a drill head head blade provided at a tip portion of the driving casing and capable of laterally expanding and closing blades, and the drill driving head blade. Means for controlling the expanding and closing of the hole head wing,
It is characterized by comprising a board drain arranged on one side of the crushing bit.

Further, the drain driving method of the present invention comprises a step of driving a casing together with a breaker provided at a tip end onto a hard ground together with a board drain, and a step of crushing the hard ground by the breaker at the tip end. It is characterized by the steps of placing the casing and the breaker together with the board drain on the soft ground, and withdrawing the casing and the breaker from the soft ground leaving the drain.

Further, in the drain driving method of the present invention, a step of driving a casing having a breaker housed in a tip portion thereof on a hard ground together with a board drain, and a breaking bit of the breaker in the tip portion are projected outside the casing. It is characterized in that it comprises a step of crushing the hard ground, a step of placing the casing together with a board drain on the soft ground, and a step of pulling the casing out of the soft ground while leaving the drain.

Further, the drain driving method of the present invention comprises the steps of driving a casing having a closed-hole drilling head blade attached to the tip end thereof on a hard ground together with a board drain, and expanding the drilling head blade. And then crushing the hard ground, a step of placing the casing together with a board drain on the soft ground, and a step of pulling the hole drilling head blade and the casing from the soft ground leaving the drain. Is characterized by.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings.

In the first embodiment of the drain driving apparatus of the present invention, as shown in FIG. 1, the tip center portion of the casing 4 is formed as a spear-shaped sharp head 4 ', and the casing 4 is formed.
The board drain 5 is extended through one side of the inside, and the board drain 5 is drawn from the inside of the casing 4 to the outside from one side above the sharp head 4 '.

Since the drain placing device according to the first embodiment of the present invention has the above-described structure, its penetration resistance is reduced, and the hard ground 1 can be placed and passed as it is.

In the second embodiment of the present invention, as shown in FIGS. 2 to 4, the casing 4 has a cross section of, for example, a quadrangle, and its tip portion is gradually reduced in diameter, for example, to have a rhombic cross section, for example. A crushing bit 10 having a rhombus-shaped sharp head 10 'connected to a breaker 9 of a rock drill or the like arranged in the casing 4 and having a rhombus-shaped tip opening 8 is formed. It is projected from the casing 4 through the opening 8.

Further, the board drain 5 is extended through one side of the casing 4 as in the case of the first embodiment, and is pulled out to the outside by the side surface of the sharp head 4'of the casing 4.

Denoted at 11 is a drainage hole formed at the front end of the casing 4, 12 is a tip portion of the board drain 5 at the front and rear surfaces of the casing 4, and 13 is a drain anchor.

Since the drain driving device in the second embodiment of the present invention has the above-mentioned structure, the casing 4 is driven together with the plastic board drain 5 and the tip of the crushing bit 10 is hard when used. When the ground 1 is reached, the breaker 9 vibrates the crushing bit 10 up and down to continue the penetration of the casing 4 while crushing the hard ground 1, and when the tip of the casing 4 passes through the hard ground 1 and reaches the soft ground 2, When the tip of the casing reaches a predetermined driving depth, the casing 4 is pulled out and the driving of the drain 5 is completed. At this time, the drain 5 comes to stop as it is in the soft ground 2 due to the action of the drain anchor 13 provided at the tip thereof.

In the third embodiment of the drain driving device of the present invention, a breaker 9 and a crushing bit 10 are provided on both sides of the tip of the casing 4 as shown in FIGS.

The operation of the third embodiment is similar to that of the second embodiment.

FIG. 7 shows a fourth embodiment of the present invention. In this embodiment, the crushing bit 10 is removably mounted in the casing 4, and a cylinder 14 for controlling the advancing / retreating operation of the crushing bit 10 is provided in the casing. Provided within 4. Reference numeral 15 is a piston rod of the cylinder 14.

Since the drain driving device according to the fourth embodiment of the present invention has the above-mentioned structure, when using it, a breaker which is operated by hydraulic pressure or pneumatic pressure in the tip portion of the casing 4 as shown in FIG. When the plastic board drain 5 is placed in a state where the crushing bit 10 of No. 9 is stored and the tip of the casing 4 reaches the hard ground 1, the crushing bit 10 of the breaker 9 is moved to the outside of the casing 4 as shown in FIG. When the casing 4 protrudes and moves up and down to crush the hard ground 1, the casing 4 continues to penetrate, and when the tip of the casing 4 passes through the hard ground 1 and reaches the soft ground 2, the breaker is cut as necessary to reduce the penetration resistance. The crushing bit 10 of No. 9 is housed in the casing 4 to penetrate the casing, and the breaker is housed when the casing tip reaches a predetermined driving depth. Pulling the casing 4, completing the pouring of the drain 5.

FIGS. 9 to 12 show a fifth embodiment of the present invention using a drilling type setting assisting device 16. The driving assisting device 16 is held by a mounting and driving means 17 provided at the tip of the casing 4 and is rotatably driven by a rod 18.
And a plurality of, for example, three, which are attached to the tip of the rod 18 via a pin 19 so as to be capable of expanding and closing the blade in the lateral direction in a fan shape.
The hole forming head blades 19a to 19c are arranged in parallel with each other, and the control means (not shown) for controlling the expanding and closing blades of the hole forming head blades 19a to 19c.

When using the placement assisting device 16,
As shown in FIG. 11, in the closed state of the drill head heads 19a to 19c, the casting of the plastic board drain 5 is started using the casing 4, and the tips of the drill head head wings 19a to 19c reach the hard ground 1. Then, as shown in FIGS. 9 and 10, the drilling head blades 19a to 19c are expanded and rotated around the axis to penetrate the casing 4 while drilling the hard ground 1,
When the tip of the casing 4 passes through the hard ground 1 and reaches the soft ground 2, as necessary to reduce the penetration resistance, as shown in FIG.
As shown in FIG. 1, the boring head blades 19a to 19c are closed, the casing is penetrated in this state, and when the tip of the casing 4 reaches a predetermined driving depth, as shown in FIG. With the blades 19a to 19c closed, the plastic board drain 5 is left and the casing 4 and the drill head head 1 are left.
Pull out 9a to 19c to complete the drain casting.

[0026]

As described above, according to the drain driving method and apparatus of the present invention, the N value of 1 which has been conventionally difficult to construct.
It is possible to use a general-purpose machine with a weight of about 30 tons for hard ground of 5 (slightly hard) or more, ground with hard soil blocks and obstacles without using pre-drilling by a separate machine or using a large machine. As a result, the applicable soil quality range of general-purpose machines is expanded, the reliability of construction is increased, and the construction period and construction cost are reduced, which is a great advantage.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a main part of a drain placing device according to a first embodiment of the present invention.

FIG. 2 is a vertical sectional front view of a main part of a drain placing device according to a second embodiment of the present invention.

FIG. 3 is a vertical cross-sectional side view of the drain placing device shown in FIG.

FIG. 4 is a bottom view of the drain placing device shown in FIG. 2.

FIG. 5 is a vertical cross-sectional view of a main part of a drain placing device according to a third embodiment of the present invention.

6 is a cross-sectional plan view of the drain placing device shown in FIG.

FIG. 7 is a vertical cross-sectional view of a main part of a fourth embodiment of the drain driving device of the present invention.

8 is a vertical cross-sectional view showing a state in which a breaker crushing bit is housed in the drain driving device shown in FIG.

FIG. 9 is a front view showing a state in which a hole drilling head blade of a main part of a drain placing device according to a fifth embodiment of the present invention is expanded.

10 is a plan view of the boring head blade shown in FIG. 9. FIG.

11 is a front view showing a state in which the drill head head blade is closed in the drain placing device shown in FIG. 9. FIG.

FIG. 12 is an explanatory view of a casing pulling-out state of the drain driving device shown in FIG. 11.

FIG. 13 is an explanatory diagram of a conventional drain placing device.

[Explanation of symbols]

1 hard ground 2 soft ground 3 Drain placing device 4 casing 4 'sharp head 5 board drain 6 drilling machine 7 Earth Auger 8 Tip opening 9 breakers 10 crushing bits 10 'sharp head 11 drainage holes 12 Tip claw 13 Drain anchor 14 cylinders 15 Piston rod 16 Drilling-type driving assistance device 17 Drive means 18 rod 19 pin 19a Drilling head wing 19b drilling head wing 19c drilling head wing

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Shozo Ikeda             Tochigi Prefecture Nasu-gun Nishinasuno-cho 4 Ward-cho 1534-1             Goyo Construction Co., Ltd. Technical Research Center (72) Inventor Hiroaki Sugihara             Tochigi Prefecture Nasu-gun Nishinasuno-cho 4 Ward-cho 1534-1             Goyo Construction Co., Ltd. Technical Research Center (72) Inventor Michihiro Kimura             1-4-25, Kitanomachi, Atobe, Yao City, Osaka Prefecture             Inside Nishiki Castle Co., Ltd. F-term (reference) 2D043 DA09 DC01 DC03

Claims (6)

[Claims] 1. A drain driving apparatus comprising: a drain driving casing; a sharp head provided at a tip of the driving casing; and a board drain arranged on one side of the sharp head. . 2. A drain casting casing, a breaker having a crushing bit provided at a tip portion of the casting casing, a means for storing the crushing bit in the casing, and a device disposed on one side of the crushing bit. A drain placing device comprising a board drain. 3. A drain casting casing, a drilling head blade provided at a tip portion of the casting casing and capable of laterally expanding and closing blades, and a drilling and closing blade of the drilling head blade. And a board drain arranged on one side of the crushing bit, the drain placing apparatus. 4. A step of placing a casing together with a breaker provided at a tip end on a hard ground together with a board drain; a step of crushing the hard ground by a breaker at the tip end; and a softening of the casing and breaker together with a board drain. A drain driving method comprising: a step of driving the ground and a step of pulling out the casing and the breaker from the soft ground while leaving the drain. 5. A step of placing a casing containing a breaker in the tip portion on a hard ground together with a board drain; a step of projecting a breaker crushing bit in the tip portion outside the casing to crush the hard ground; A drain placing method comprising: a step of placing the casing on a soft ground together with a board drain; and a step of pulling the casing out of the soft ground leaving the drain. 6. A step of placing a casing having a closed hole drilling head blade attached to a tip end thereof on a hard ground together with a board drain, and a step of expanding the hole drilling head blade to crush the hard ground. And a step of placing the casing together with a board drain on soft ground, and a step of withdrawing the drill head head and the casing from the soft ground leaving the drain.