JP3532150B2 - Self-propelled drilling equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to drilling of soil at the time of sampling of soil contamination surveys, particularly drilling of a wide range of pavement surfaces such as concrete, stone and asphalt. The present invention relates to a drilling device that is suitable for: 2. Description of the Related Art In recent years, environmental pollution has become a major social problem, and soil pollution, which is one of the major problems, has been investigated for various metals and volatile organic compounds contained in contaminated soil. Investigations are urgently nationwide. [0003] In order to prepare such a sample for measuring soil contamination, a soil sample or soil gas is collected. These samples are generally collected at several points within the survey area, about 15 cm below the ground surface, but it is necessary to drill the surface soil at the point of interest. . [0004] In particular, when the target site is paved with concrete, asphalt, stone, or the like, a boring device such as a core cutter or a hammer drill is used to drill these paved surfaces. The core cutter is provided with a ring-shaped cutting blade at the tip, and is rotated while supplying cutting water to the cutting blade to bore a pavement surface. [0005] The conventional drilling device such as the core cutter described above has to be transported by hand and fixed to an object point with anchor bolts. A great deal of labor and time is required, and there has been a problem that work efficiency is extremely poor. A conventional drilling device such as an air cutter requires a power supply for driving. However, since the target site of the soil contamination survey is usually outdoors, it is not easy to secure the power supply.
There was a drawback that power had to be drawn by drawing power lines from telephone poles. Particularly, in the case of an air cutter, dust is generated when drilling a pavement surface, and it is inevitable that used cutting water is scattered around. For this reason, there is a problem that the soil to be investigated is contaminated by the generated dust and cutting water, and a countermeasure has been desired. The present invention has been made in view of such a conventional problem, and is applicable to a wide range of outdoor surveys where it is difficult to secure a power source when collecting a sample for soil pollution survey. An object of the present invention is to provide a drilling device that can drill a pavement surface such as concrete or asphalt without contaminating a sample. In order to achieve the above object, a drilling device provided by the present invention comprises: a bogie provided with running means; a core cutter for rotating and boring a pavement surface by drilling; , Equipped with a water supply device that supplies cutting water to the core cutter, a water absorption device that sucks and collects used cutting water from around the core cutter, and a generator as a drive power supply for operating the core cutter and the water absorption device It is a self-propelled drilling machine characterized by the above. In the self-propelled drilling machine of the present invention,
At the tip of the water-absorbing hose of the water-absorbing device, attach the tip of a core cutter.
Prevention of scattering of used cutting water with insertion holes through which the ends are inserted
It has a cover. Also, at the lower end of the support, a pavement surface
To prevent displacement of the core cutter
With plate. The driving means is a motor driven
A moving caterpillar (registered trademark) can be used . DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A self-propelled drilling machine according to the present invention is provided with a rotatable ring-shaped cutting blade at a tip thereof on a truck provided with running means such as a caterpillar and wheels driven by a motor. Equipped with a equipped core cutter. Therefore, the vehicle can be freely driven by the motor drive and can be easily moved to a predetermined inspection target point, so that efficient drilling work can be performed particularly when the area of the inspection section is large. The running means is not limited, but a caterpillar is preferable in terms of running on sloping ground and increasing the weight of the entire apparatus. Further, since the self-propelled drilling machine of the present invention itself has a considerable weight, it is not necessary to fix the core cutter with anchor bolts as in the prior art, and the drilling work can be started in a short time. it can. However, in order to surely prevent the core cutter from shifting or moving from the target point during the drilling operation, it is desirable to equip a fixing plate that presses against the pavement surface and fixes the entire apparatus. Further, in addition to the core cutter, the bogie provided with the traveling means includes a water supply device for supplying cutting water to the core cutter and a water absorbing device for sucking and recovering used cutting water from around the core cutter. A generator is provided as a drive power source for operating the cutter and the water absorbing device. Therefore, even when the target site of the soil pollution survey is outdoors, or when it is difficult to secure a power source because there is no utility pole nearby, the generator can be used to operate the core cutter and the water absorbing device, so that it is easy and easy. Drilling work can be performed efficiently. In order to drill a pavement surface by the self-propelled drilling device of the present invention, the core cutter is lowered by a manual or vertical drive while rotating the core cutter, and at the same time, the cutting water is caused to flow down from the water supply device. Supply near the cutting blade at the tip of the cutter. By supplying the cutting water, wear of the core cutter can be prevented and scattering of generated dust can be prevented. Further, since the used cutting water includes dust generated by cutting the pavement surface, the used cutting water is sucked and collected by a water absorbing device. By equipping the tip of the water-absorbing hose of the water-absorbing device with the scattering-prevention cover of used cutting water, it is possible to collect used cutting water containing dust and dust, eliminate scattering to the surroundings, and recover most of it. . The scattering prevention cover needs to be provided with an insertion hole through which the tip of the core cutter is inserted. Therefore, by using the self-propelled drilling device of the present invention, it is possible to easily and efficiently use concrete, even in places where it is difficult to secure a power source, such as outdoors, while traveling in a wide soil survey area. It becomes possible to drill a pavement surface such as stone or asphalt. Further, it is possible to prevent dust generated by drilling and used cutting water containing dust from scattering to the surroundings, thereby preventing contamination of soil to be investigated. An embodiment of the present invention will be described below with reference to FIG. This self-propelled drilling machine has a truck 1 and a caterpillar 2
And a driving motor 3 for driving the caterpillar 2 and a driving handle 4 for steering, which can be freely moved to an arbitrary position and stopped at that position. A core cutter 5 having a cutting blade 5a at a lower end thereof is supported on a front end of the carriage 1 together with a driving motor 8 by a support 6.
, And can be moved up and down at an arbitrary distance along the column 6 by operating the handle 7. The core cutter 5 has an upper end connected to a driving motor 8 and can be driven to rotate around a vertical rotation axis. Note that the lower end of the support 6 is a fixed plate 6a, which can be lowered together with the support 6 and pressed against the pavement surface to prevent the core cutter 5 from being displaced. Further, a water supply tank 9 for supplying cutting water, a recovery tank (not shown), and a water absorption device 10 for used cutting water having a motor 10b for water absorption are provided on the carriage 1.
Is installed. The water supply tank 9 is connected to the core cutter 5 by a water supply hose 9a. By opening the valve 9b, the cutting water flows naturally, and the cutting blade 5 of the core cutter 5
a. The water absorbing device 10 is connected to a water absorbing hose 10.
a extends in the direction of the core cutter 5, and a scattering prevention cover 11 is attached to the tip of the water absorbing hose 10a. The scattering prevention cover 11 is provided with an insertion hole 11a through which the lower end of the core cutter 5 that moves up and down can be inserted. Therefore, the cutting water supplied from the water absorption tank 9 to the core cutter 5 is collected almost without leaking out of the scattering prevention cover 11, is sucked by the water absorption hose 10a, and is collected and stored in the collection tank of the water absorption device 10. The motor 8 for driving the core cutter 5
The water absorption motor 10b of the water absorption device 10 is operated by electric power supplied from an engine generator 12 provided on the truck 1. According to the present invention, since the drilling device, the power supply device, and the moving device are integrated, even if the area for the soil survey is large, and even if there is no power source outdoors, Also,
Drilling work on a pavement surface such as cocrete or asphalt can be performed easily and easily, and labor and labor involved in the work can be reduced, and the drilling work can be substantially automated. In addition, it is possible to prevent the dust and used cutting water generated in the drilling on the pavement surface from scattering and to drill without polluting the soil contamination sample.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic side view showing a specific example of a self-propelled drilling device of the present invention. [Description of Signs] 1 cart 2 caterpillar 5 core cutter 9 water supply tank 10 water absorption device 11 shatterproof cover 12 engine generator

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E21B 7/02

Claims (1)

(57) [Claim 1] A bogie provided with running means driven by a motor, a core cutter which can move up and down along a column and is driven to rotate to drill a pavement surface, and a core cutter. A water supply device that supplies cutting water, a water absorption device that sucks and collects used cutting water from around the core cutter, and a generator as a drive power supply that operates the core cutter and the water absorption device
The water absorption hose end of the water absorption device
Used cutting water with an insertion hole through which the tip of the
A scattering prevention cover is provided, and a pavement is
Press against the mounting surface to prevent misalignment of the core cutter
A self-propelled drilling machine having a fixed plate .