JP3294788B2 - Soil sampling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soil sampling apparatus for investigating the soil quality of a soil layer, and more particularly, to a soil sampling apparatus provided at predetermined intervals from an existing hole used for another purpose of soil investigation. The present invention relates to a soil sampling device for collecting a sample separately.

[0002]

2. Description of the Related Art When constructing a house or the like, it is necessary to know the nature of the soil constituting the ground of the construction site and to construct a foundation in accordance with the soil quality. Is going. As a method for examining the soil quality, as the simplest means, a Swedish sounding test or a cone penetration test is used, and by using such a test method, it is possible to know the properties of the soil. Is done. However, when the above-described soil test means is used, although data such as ground support strength can be obtained, there is a problem that soil cannot be collected and checked as it is. Therefore, when the Swedish sounding test is performed, a soil sample is collected by shaving the inner wall surface of a hole formed in the ground from the ground.

As described above, in order to collect a soil sample, the present applicant has disclosed an apparatus for collecting soil at a predetermined interval from a long pipe member as shown in Japanese Patent Application Laid-Open No. 9-209350. It was proposed to use the one provided with.
In the conventional example, a sampling device in which sampling tubes are attached to a long main body tube member at regular intervals is configured, and the device is inserted into a hole formed in the ground, and then the sampling tube is connected to the main body tube member. , And by moving the main body pipe member up and down within a predetermined range, the soil is scraped and stored in the pipe. Therefore, in the sampling device, by arranging the soil sampling members at predetermined intervals, soil samples can be sampled at regular intervals from one soil test hole provided in the ground. The feature that can be exhibited.

[0004]

However, in the above-described apparatus, when the sample collection member is protruded from the opening of the main body tube member to perform the sample collection, the soil is placed behind the sample collection member from the opening of the main body tube member. There is a problem that the sample collecting member cannot be accommodated inside the main body tube member through the opening after the sample is collected. Of course, the above-mentioned inconvenient state does not always occur, but when soil or the like enters the opening as described above, the member supporting the sample collection member is damaged, or the sample collection member is opened. This may lead to a problem of dropping into the inside of the sample, which may hinder the subsequent work of collecting the sample.
Further, in the conventional example, the wire for allowing the sample collection member to protrude and retract from the opening is arranged along the side of the main body tube member, but the wire is exposed along the main body tube member. As a result, a problem may arise in the operability.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks of the conventional apparatus, and makes it possible to easily perform a sampling operation of a soil sample by a sampling member, and to obtain a soil sample with good workability and reliability. It is intended to provide a sampling device.

[0006]

According to the present invention, there is provided a main body tube member formed of a long tubular member provided with a handle at an uppermost portion, and an opening arranged at a predetermined interval on a side portion of the main body tube member. And a soil sampling device provided with a sample sampling member provided so as to be able to appear and disappear. The invention according to claim 1 of the present invention is characterized in that at a position corresponding to an opening provided on one side of the main body pipe member, an opening is provided on the opposite side via the opening and the axis, and the sample collection member is provided. Means for swingably supporting the main body tube member, biasing the sample collection member in a direction to project from the opening of the main body tube member, and means for accommodating the sample collection member in the main body tube member. It is characterized by having been provided.

According to a second aspect of the present invention, the sample collection member is
A tube support that is swingably supported via a support shaft provided on a main body pipe member, and a sampling tube that is detachably attached to the tube support, is configured in a combination manner. A notch for use in attaching and detaching the tube is provided, and a member for urging in a direction to protrude from the opening of the sampling member is arranged on the side of the upper opening of the tube support, and inside the main body tube member. A wire for accommodating the sampling member is disposed, and the wire connects the lever member of the handle and the tube support. According to a third aspect of the present invention, a wire used for housing the sample collecting member inside the main body pipe member is connected to a lever member provided on the handle, and is protected by a protective cover arranged along the main body tube member. It is characterized by being arranged. The invention according to claim 4 is that, in the sample collecting member, a sampling tube for collecting a sample is provided with an upper opening made of a transparent resin material,
It is characterized in that the lower part is made of a pipe-shaped one with a seal, and a concave part is provided on the side part of the sampling tube so that it can be taken out from the tube support.

[0008] With the above-described configuration, in the sampling apparatus of the present invention, samples can be taken at arbitrary intervals from the holes previously used for soil tests and the like. Work can be performed easily. Further, in the apparatus of the present invention, when the sample is collected by protruding the sample collecting member from the main body tube member, even if soil or the like enters the inside of the main body tube member, it is easily removed from the opening behind the opening. Therefore, the sampling member can be easily stored in the main body tube member after the sample is collected. In addition, since the wire used to house the sample collection member in the main body tube member is protected by the protective cover arranged along the main body tube member, the wire does not slide on the wall of the hole. In addition, the operation of the device can be reliably performed. Since the sampling tube arranged on the sample collecting member is formed of a transparent member, the sample can be stored in a sealed state only by closing the cover after the sample is collected, and the storage and organization of the sample can be easily performed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The soil sampling apparatus of the present invention will be described with reference to the illustrated example. In the present invention, a Swedish sounding test apparatus is used in the same manner as in the conventional example. When a test is performed, a sampling device is inserted using a vertical hole formed in the ground, and the device is configured as a device capable of collecting a soil sample. In the example shown in FIG. 1, the sampling device 1 of the present invention is provided with a main body tube member 3 as a main body member by a long pipe-shaped member, and a plurality of sample collection members 20, 20a. Are provided so as to be able to protrude and retract by being urged by a leaf spring 28 from openings provided in the side portions of the main body pipe member. The leaf spring 28
Is configured as curved as shown, the upper end is fixedly attached to the opening side of the main body tube member, and the lower end is formed from the rear side of the upper part of the sampling member (the side opposite to the opening 4). It is provided so as to be pressed. The urging member for the sample collection member is not limited to a leaf spring as shown in the figure, but any other spring-like member may be used. Further, the handle 2 is arranged at the upper end of the main body tube member 3, and the operation of inserting and pulling the device into and out of the soil hole is performed by holding the handle of the sampling device by hand.

In the above-described sampling apparatus 1, a description will be given of a case where the main body pipe member 3 provided with the handle 2 and the main body pipe member 3a provided with the head member 8 at the lower end are connected via connecting portions 6 and 7. However, in the sampling device shown in the present embodiment, it is also possible to arrange another main body tube member in which a sample collecting member is arranged at an intermediate portion thereof to form a long device. Further, the sample collecting members 20 are arranged at predetermined intervals with respect to each of the main body pipe members, and the arrangement intervals of the sample collecting members are determined according to the purpose of collecting the sample. It can be set arbitrarily. And the said main body tube member is comprised as a thing of 2 m length,
When the sample collection members are arranged at intervals of 50 cm, an apparatus for connecting three main body tube members and collecting a sample from a depth of 6 m may be configured. When a plurality of the main body pipe members are connected, any connecting means other than screw connection can be used as means for connecting the respective pipes. For example, pin connecting means and other conventionally known means It is possible to apply tube connection means.

In the sampling device, a lever member 10 is provided on the handle 2 via a support shaft 11, and a wire 1 connected to the lever member 10 is provided.
2 is arranged along the main body pipe member 3. Then, for each of the sampling members 20..., The branch wire 13, 13 a is connected to the wire 12 through the connection portion 14, 14 a.
Are attached, and holes 15, 15a provided in the main body tube member are attached.
Are connected to the sampling members 20, 20a, respectively. The wire 12 and the branch wire 13 accommodate the sample collection member inside the main body tube member 3 by swinging the lever member 10 to a position shown by a chain line in the figure. In a state where the member 10 is swung, the sample collecting members 20 are biased by the leaf springs 28 and are respectively projected from the openings 4 of the main body tube member 3, so that the soil sample can be collected. Becomes

When a soil sample is collected using the sampling device 1, as shown in FIG. 2, the sampling device is inserted into a test hole 31 provided in the survey ground 30, and then the lever member 10 is removed. Is loosened, so that the sample collection members 20... Protrude from the opening of the main body tube member by the pressing action of the leaf spring. Then, by moving the sampling device up and down at predetermined intervals a plurality of times, the soil sample in the hole wall 32 is scraped from the opening above the sample collection member into the sampling tube and stored. after,
A state in which the sample of the soil corresponding to the arrangement interval of the sample collecting members is accommodated in the sampling tube arranged in each sample collecting member by pulling the sample collecting member in the main tube member and pulling it up to the ground. Can be collected at

The example shown in FIGS. 3 and 4 shows the structure of a sample collection member 20 supported by the main body tube member 3 and the openings 4 and 5 provided in the main body tube member 3. The opening 4 provided in the member 3 is formed in such a size that the tip thereof can protrude when the sample collection member 20 is swung.
The opening 5 provided on the back surface of the opening can be configured as an opening having an arbitrary size as long as soil or the like that has entered through the opening can be removed. The sample collection member 20 supported by the main body tube member 3 is configured by combining a sampling tube 21 for accommodating a sample and a tube support 25 for supporting the sampling tube. The support shaft 26 supports the main body tube member 3. Further, a leaf spring 28 engaged with the upper part of the tube support is disposed on the inner surface of the main body tube member, and the plate spring is urged by the leaf spring to project from the opening 4 of the main body tube member 3. ing. The branch wire 13 connected to the wire is connected to the upper portion of the tube support 25 on the opening 5 side through an opening 15 provided in the main body tube member. By pulling with the lever member, the sampling member 20 is housed in the main body tube member 3 from the opening 4.

The wire 12 and the branch wire 13 are arranged along the side surface on the opening side of the main body pipe member. A protection cover 16 is attached to the main body pipe member to protect the wire and the branch wire. ing. Then, the protection cover 16
By protecting the wire, the wire 12 and the like can be prevented from sliding on the inner wall of the hole and being worn. The protective cover 16 can be formed by forming a thin metal plate into a mountain shape or an arc shape and can be disposed by welding to a metal main body pipe member. In this case, the protective cover may also be made of resin and fixed to the main body pipe member using an adhesive.

The sample collection member 20 can be configured as shown in FIG. 5, for example, and the sampling tube 21 can be configured as shown in FIG. In the sampling member 20 shown in FIG. 5, a notch 27 is provided on the upper side of a tube support 25 for holding the sampling tube 21, and the concave portion 22 of the sampling tube 21 is located in the notch 27. And combine them. Therefore, in this embodiment, the sampling tube 21 accommodated in the tube support 25 can be of a size that is substantially the same height as the upper end of the tube support, and can be used for soil. When collecting a sample, the upper end of the metal tube support scrapes the soil without the resin sampling tube directly scratching the soil, and the sample can be stored in the sampling tube. Further, at the lower part of the tube support 25, the sampling tube 21 supported by the tube support 25 is swingably supported by the main body pipe member via a support shaft 26. It is in a state of being supported by the support shaft.

The sampling tube 21 disposed on the sample collection member can be configured as shown in FIG. 6, and is configured such that a lower end of a pipe-shaped member is sealed and an opening is provided at an upper end. However, a small hole 23 is provided in the lower part of the tube. An arbitrary number of the holes 23 can be provided at the lower portion of the tube, and air can be exhausted from the holes at the time of collecting the sample so that the sample can be sufficiently accommodated. And
After the sample is collected, a lid 24 is attached to the opening to seal the inside, so that the collected sample can be stored in a sealed state. A concave portion 22 is provided at a predetermined position above the sampling tube 21 so that a claw can be hooked when the sampling tube is taken out from the tube support. The recess 22
Can be configured as an arbitrary depth, and can be formed by cutting the side of the sampling tube, or by providing a projection on the mold member that creates the sampling tube,
It is also possible to provide the concave portion integrally when molding the concave portion.

When a soil sample is collected using the sampling device having the above-described configuration, a plurality of main pipe members are connected to each other, and the wire 12 is connected to the main pipe members at the same time. Connect at the connection part of each body pipe member,
A large number of sampling members are made to protrude and retract from the main body tube member in a state of being linked. Then, as described with reference to FIG. 2, in a state where each sample collecting member is housed inside the main body tube member, when a test is performed using the Swedish sounding test device, a test sample formed on the survey ground 30 is formed. The operation of inserting the sampling device 1 and collecting a soil sample is performed using the hole 31. The test hole 31
The sample was stored in the sampling tube with the hole wall 32 of the sample being scratched by the opening of the sample collecting member, and then the sample collecting member was stored in the main tube member.
By pulling up to the ground, soil samples corresponding to the arrangement intervals of the sampling members are collected in a state of being accommodated in sampling tubes arranged in the respective sampling members. The soil sample collected as described above can be stored and transported as a sample by removing the sampling tube from the tube support, covering it with a lid, sealing it, and attaching a label to the sampling tube. However, when the sampling tube is made of a transparent material, it is possible to observe the state of the sample while the sample tube is housed in the sampling tube.

As described above, collecting a soil sample is intended to provide a direct visualization of the soil properties, in addition to data obtained from other soil tests, and to determine the properties of the collected soil. It can be used for the purpose of directly knowing, etc. In addition, it can also be used as basic data when improving the ground of a building. In addition, while the conventional sample collecting device was able to collect a sample only from one place underground, in this device, from a position at an arbitrary depth,
Since soil samples can be collected at regular intervals, the efficiency of sample collection can be improved.

[0019]

As described above, since the soil sample collecting apparatus of the present invention has the above-described configuration, it is possible to collect samples at arbitrary intervals from the holes previously used for soil tests and the like. In addition, the work of collecting a soil sample can be easily performed. Further, in the apparatus of the present invention, when the sample is collected by protruding the sample collecting member from the main body tube member, even if soil or the like enters the inside of the main body tube member, it is easily removed from the opening behind the opening. Therefore, the sampling member can be easily stored in the main body tube member after the sample is collected. In addition, since the wire used to house the sample collection member in the main body tube member is protected by the protective cover arranged along the main body tube member, the wire does not slide on the hole wall. In addition, the operation of the device can be reliably performed. Since the sampling tube arranged on the sample collecting member is formed of a transparent member, the sample can be stored in a sealed state only by closing the cover after the sample is collected, and the storage and organization of the sample can be easily performed.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a configuration of a sampling device of the present invention.

FIG. 2 is an explanatory diagram of a state where a sample is collected using the sampling device of the present invention.

FIG. 3 is an explanatory diagram showing a configuration of a sample collecting member provided in a main body tube member.

FIG. 4 is a cross-sectional view of the sample collection member of FIG.

FIG. 5 is an explanatory diagram of a tube support and a sampling tube constituting a sample collection member.

FIG. 6 is an explanatory view of a sampling tube of the present invention.

[Explanation of symbols]

1 sampling device, 2 handle, 3
Body tube member, 4 opening, 5 opening, 8 head member, 10 lever member, 12/13 wire, 16 protective cover, 20 sampling member,
21 sampling tube, 22 recess, 25
Tube support, 26 spindle, 27 notch, 28 leaf spring, 30 survey ground, 31
Test holes,

Claims (4)

(57) [Claims] 1. A main body tube member composed of a long tubular member provided with a handle at an uppermost portion, and a sample collection provided so as to be able to protrude and retract from an opening arranged at a predetermined interval on a side portion of the main body tube member. A soil sample collecting apparatus comprising: a member provided with an opening at a position corresponding to an opening provided on one side of the main body pipe member; Means for swingably supporting the sampling member with respect to the main body tube member, and urging the sample collection member in a direction to protrude from the opening of the main body tube member; and accommodating the sample collection member in the main body tube member. Means for collecting a soil sample. 2. A combination of a tube support for swingably supporting the sample collection member via a support shaft provided on a main body tube member, and a sampling tube detachably mounted on the tube support. A notch portion used for attaching and detaching a sampling tube in the tube support, and a member for urging in a direction of projecting from a sample collection member opening toward an upper opening side of the tube support. And a wire used for accommodating the sampling member inside the body tube member, and the wire connects the lever member of the handle and the tube support. Soil sampling equipment. 3. A wire used for accommodating a sample collecting member inside the main body tube member is connected to a lever member provided on a handle, and is protected and arranged by a protective cover arranged along the main body tube member. The soil sampling apparatus according to claim 1, wherein: 4. In the sample collecting member, a sampling tube for collecting a sample is formed of a pipe having a transparent resin material provided with an opening at an upper portion and a lower portion sealed, and a concave portion is formed on a side portion of the sampling tube. The soil sampling device according to claim 1 or 2, wherein a device is provided to cope with removal from the tube support.