JP3467730B2 - Elevating seismometer installation device and elevating seismometer installation device construction method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertically movable seismometer installation device and a method of constructing an vertically movable seismometer installation device. Accurate reception and recording of seismic waves (S-waves, P-waves, etc.) propagating from the epicenter is required to clarify the nature of the earthquake and reduce damage. INDUSTRIAL APPLICABILITY The present invention blocks noise transmitted from the ground surface to an underground seismometer to a seismometer installed in an underground seismometer installation device, and receives and records only a more accurate seismic wave and at the same time causes a failure or the like. If
This is a method of installing an up / down seismograph installation device and an up / down seismograph installation device that allows the seismograph to be lifted / repaired or replaced as needed.

[0002]

2. Description of the Related Art In recent years, crustal strain and seismic waves (S waves, P waves)
The technology for measuring and analyzing earthquakes has expanded, and even in the case of underground collapse, a seismograph installation hole is added below the upper seismograph elevating and lowering pipe that has been inserted into the seismograph installation well. It has been filled with seismographs in it and accumulated seismic wave observations until today.

[0003]

The prior art has the following problems. Appropriate processing cannot be performed such as salvage repair or replacement due to seismometer failure. This delays the earthquake countermeasure development technology, and is currently a great financial loss. Therefore, an excavation was performed below the pipe bottom of the upper seismometer elevation guide pipe in the seismograph installation device that can be moved up and down buried in the ground, and the seismograph was buried in the cement with delayed hardening, causing a seismometer failure. Even though it could not be repaired or replaced, it is an urgent task to develop a configuration that can be lifted from the installation position and repaired or replaced.

The present invention has been made in view of such problems included in the conventional technique, and an object of the present invention is to provide a device capable of achieving the following objectives. . 1. The seismic wave propagated from the epicenter is accurately observed and recorded in the seismograph 7A installed in the non-magnetic seismometer housing 3 buried under the bottom of the upper seismometer up-and-down guide tube 2 to further science of earthquakes. Contributes to clear understanding. 2. The upper seismograph lift guide tube 2 made of iron vertically buried underground and the geomagnetic compass installed in the non-magnetic seismometer storage case 3 made of SVS316 stainless steel pipe have a magnetic non-interference of 4 m or more. I need a bad distance. 3. The installation tilt angle of the seismograph must be within 3 °. 4. When the seismometer 7A installed can be moved up and down as necessary, if the seismograph 7A installed has a failure etc. and becomes unobservable by adopting the seismograph installation method, it will be relocated to a fixed position after repair. Installation of a seismograph It will be a seismograph installation device that can move up and down to restart observation.

[0005]

In order to achieve the above object, the present invention is as follows.

According to a first aspect of the present invention, the following upper seismograph ascending / descending guide tube 2, nonmagnetic seismometer housing 3, seismic wave receiving and transmitting device 4, boring rod 5, and nonmagnetic casing removing device 6 are provided. It is characterized by being composed of the seismograph section 7. A. The upper seismograph elevating and lowering guide tube 2 is made of iron and is vertically embedded at an appropriate depth in the ground. B. The non-magnetic seismograph storage cylinder 3 is a vertical cylinder made of a non-magnetic material, and is vertically embedded in the insertion hole 8 dug in the lower stratum 8A from the bottom of the upper seismograph elevating guide tube 2, The non-magnetic seismograph storage cylinder 3 is connected to the upper seismograph ascending / descending guide tube 2 in a vertically inserted tube which is separated by overlapping. Is engraved, and a right screw 3B is engraved on the lower end of the outer periphery. C. The seismic wave reception / transmission device 4 is an earthquake wave reception / transmission tube 4A.
And a cementing device 4B provided in the center of the seismic wave reception and transmission cylinder, and concrete 4C. A. The seismic wave reception / transmission cylinder 4A is configured as a vertical cylinder of a predetermined length connected at the upper end to the right-hand screw 3B of the non-magnetic seismometer housing cylinder 3 and has a predetermined length on the side surface. 4A1 is opened, and a right screw 4A is provided on the inner peripheral surface of the upper end.
2 is engraved, b. Cementing apparatus 4B is installed in a state of penetrating to Kansoko center of the earth Shinnami received transmission tube 4A, c. The concrete 4C is filled in a gap between the inside of the seismic wave receiving and transmitting cylinder 4A and the outside of the cementing device 4B, and the filled cement forms a seismograph mounting table 4C1 having an upper floor. D. The boring rod 5 is composed of a rod body 5A having a channel 5A1 formed in the axial center thereof, and an upper coupling 5B for disconnection connected to the lower end of the rod body. A flow path 5B1 is opened, and a right screw 5 that is screwed into a lower coupling for removal on the nonmagnetic casing removal device side is provided on the outer periphery of the protruding portion on the lower surface.
B2 is engraved. E. The non-magnetic casing removing device 6 has a flow path 6A1 at its axis.
A disengagement cementing rod 6A, a disengagement lower coupling 6B connected to the upper end of the disengagement cementing rod 6A, and an oil seal cementing leak preventer 6C provided on the outer periphery of the lower end of the disengagement cementing rod 6A. And a. The lower coupling 6B for disengagement has a flow path 6B1 at its axial center.
In addition, a right-hand screw 6B2 screwed into a right-hand screw 5B2 on the protruding portion on the side of the boring rod 5 is engraved in the recess at the center of the upper surface, and the upper coupling 5B for disengagement is screwed, and the lower outer periphery is not A left screw 6B3 screwed into the left screw 3A of the magnetic seismograph storage barrel 3 is engraved, and the non-magnetic seismometer storage barrel 3 is screwed into the left screw 6B3. B. The cementing leakage preventive tool 6C with an oil seal is provided on the outer circumference of the lower end of the separating cementing rod 6A, and the cementing leakage preventive tool receiving chamber 4B in the cementing device 4B.
1 oil leakage prevention oil seal 6 attached to fit into
It is composed of C1. F. The seismograph section 7 is composed of a seismograph 7A, a geomagnetic compass 7B provided inside, a seismometer cap tire cord 7C for suspending from the ground, and a suspending wire 7D.

According to a second aspect of the present invention, in the first aspect of the invention, the cementing device 4B has a cementing leak.
Leak prevention tool receiving chamber 4B1, upper cementing pipe 4B2, upper
Check valve ball chamber 4B3, check valve ball chamber connecting pipe 4B
4, lower check valve ball chamber 4B5, lower cementing pipe 4
B6 is constructed by sequentially connecting from the top to the bottom.
Installed so that it penetrates to the center of the bottom of the receiving and transmitting tube 4A.
It is, Lee. The cementing leak prevention tool receiving chamber 4B1 has a funnel shape.
Configured, b. The upper cementing tube 4B2 has a vertical cylindrical shape,
The menting leakage preventive device is connected to the lower end of the receiving chamber 4B1 and c. The upper check valve ball chamber 4B3 is a circle whose top and bottom are sealed.
It is configured as a cylindrical chamber and is connected to the lower end of the upper cementing pipe.
The inside of the ball operating spring BS located below
Check valve ball VB acting upward are arranged by use, two. The check valve ball chamber communication pipe 4B4 has a vertical cylindrical shape,
It is connected to the center of the lower surface of the upper check valve ball chamber 4B3, e. The lower check valve ball chamber 4B5 is a circle whose top and bottom are sealed.
It is configured as a cylindrical chamber and is connected to the lower end of the check valve ball chamber connecting pipe.
It is, in the interior of the ball running for the bus Ne BS which is located below
The check valve ball VB that acts upward by the action is installed.
Is, f. The lower cementing pipe 4B6 has a vertical cylindrical shape,
Part check valve ball chamber 4B5
It is characterized by being opened. According to a third aspect of the present invention, in the first or second aspect of the invention, the nonmagnetic seismograph storage cylinder 3 and the seismic wave reception / transmission cylinder 4A are not screwed and connected, but the nonmagnetic seismometer storage cylinder 3 and the seismic wave. Seismic wave receiving and transmitting tube 4A as a whole by integrating the receiving and transmitting tube 4A
It is characterized by being configured as.

The invention according to claim 4 is the invention according to claims 1 to 3.
The invention according to any one of claim 3 is used, which is characterized by comprising the following steps. First step For the upper seismograph ascending / descending guide tube 2 made of iron vertically embedded at an appropriate depth in the ground, the insertion hole 8 is dug in the lower stratum from the bottom of the upper seismograph ascending / descending guide tube 2. Second step The left screw 6B3 of the lower coupling 6B for separation in the non-magnetic casing separation device 6 is screwed and connected to the left screw 3A of the non-magnetic seismograph storage cylinder 3, and the cementing leakage preventive tool 6C with an oil seal is cementing device. The seismic wave reception / transmission tube 4A is connected to the upper seismometer elevation guide tube 2 in a vertically inserted state, which is overlapped and separated, in a state of being fitted in the cementing leakage prevention tool receiving chamber 4B1 of 4B. Third Step The cement 9 is press-fitted through the flow path 5A1 and the flow path 5B1 of the boring rod 5, the flow path 6B1 of the non-magnetic casing removing device 6, and the like. This press cement, cement
It is made to flow into the ching device 4B . In addition, cementing
While squeezing out the cement from the lower end of the device 4B , it is press-fitted into the gap between the nonmagnetic seismometer storage cylinder 3 connected to the seismic wave reception transmission cylinder 4A and the lower stratum 8A of the insertion hole 8. Fourth Step By rotating the boring rod 5 to the right, the non-magnetic casing detaching device 6 screwed to the boring rod 5 is detached from the non-magnetic seismometer housing barrel 3 connected to the seismic wave receiving and transmitting barrel 4A. , The non-magnetic casing release device 6 is lifted to the ground together with the boring rod 5. Fifth step seismograph cape cord 7C is connected and integrated with a suspending wire 7D to suspend the seismograph 7A that can be lifted and lowered from the surface of the earth on the upper floor of the seismograph mounting table 4C1. Install on top. In this case, the seismograph 7A is configured such that the seismograph installation inclination angle is within 3 °, and the geomagnetic compass 7B and the upper seismograph lift guide tube 2 stored in the seismometer are capable of magnetic isolation of 4 m or more.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will now be described based on examples with reference to the drawings.

Reference numeral 1 is a seismograph installation apparatus capable of moving up and down according to the first invention. Upper seismometer elevation guide tube 2 and non-magnetic seismometer housing 3
, Seismic wave receiving and transmitting device 4, boring rod 5,
It is composed of a non-magnetic casing removing device 6 and a seismograph section 7.

A. The upper seismograph elevating and lowering guide tube 2 is made of iron and is vertically embedded at an appropriate depth in the ground. B. The non-magnetic seismograph storage cylinder 3 is a vertical cylinder made of a non-magnetic material such as SVS316 stainless steel pipe, and is inserted into the insertion hole 8 dug into the lower stratum 8A from the bottom of the upper seismograph lift guide pipe 2. The non-magnetic seismograph storage cylinder 3 that is vertically embedded is connected to the upper seismograph elevating and lowering guide pipe 2 in a vertically inserted tube which is separated from the upper seismometer lift guide tube 2 in an overlapping manner. A left screw 3A is engraved on the upper end of the inner circumference of the nonmagnetic seismograph storage cylinder 3, and a right screw 3B is engraved on the lower end of the outer circumference.

C. The seismic wave reception / transmission device 4 includes an seismic wave reception / transmission cylinder 4A, a cementing device 4B provided in the center of the seismic wave reception / transmission cylinder, and concrete 4C. a. The seismic wave reception / transmission cylinder 4A is configured as a vertical cylinder of a predetermined length connected at the upper end to the right-hand screw 3B of the non-magnetic seismometer housing cylinder 3 and has a predetermined length on the side surface. 4A1 is opened, and a right screw 4A is provided on the inner peripheral surface of the upper end.
2 is engraved. The relationship between the nonmagnetic seismograph storage cylinder 3 and the seismic wave reception / transmission cylinder 4A is manufactured separately from those described above, and the two are screwed and connected. However, this is in consideration of manufacturing and handling at the site, and it goes without saying that the nonmagnetic seismograph storage cylinder 3 and the seismic wave reception / transmission tube 4A can be integrated into one body, and the whole can be configured as the seismic wave reception / transmission tube. is there. When such a non-magnetic seismograph storage cylinder 3 and seismic wave reception / transmission cylinder 4A are used as one body, screwing work or the like for the non-magnetic seismograph storage cylinder 3 in the second step of the second invention described later is omitted or It will be changed.

B. The cementing device 4B includes a cementing leak preventer receiving chamber 4B1, an upper cementing pipe 4B.
2. The upper check valve ball chamber 4B3, the check valve ball chamber communication pipe 4B4, the lower check valve ball chamber 4B5, and the lower cementing pipe 4B6 are sequentially connected from the upper side to the lower side. It is installed so as to penetrate to the center of the pipe bottom. I. The cementing leakage prevention tool receiving chamber 4B1 is configured in a funnel shape. B. The upper cementing pipe 4B2 has a vertical cylindrical shape and is connected to the lower end of the cementing leakage prevention device receiving chamber 4B1. C. The upper check valve ball chamber 4B3 is configured as a cylindrical chamber whose upper and lower sides are sealed, is connected to the lower end of the upper cementing pipe, and is internally actuated upward by the action of the ball operating spring BS located below. A stop ball VB is provided. In the figure, PZ is a pipe-shaped spring pedestal. D. The check valve ball chamber communication pipe 4B4 has a vertical cylindrical shape,
It is connected to the center of the lower surface of the upper check valve ball chamber 4B3. E. The lower check valve ball chamber 4B5 is configured as a cylindrical chamber whose upper and lower sides are sealed, is connected to the lower end of the check valve ball chamber communication pipe 4B4, and is internally operated by a ball operating spring BS located below. A check valve ball VB acting upward is arranged. In the figure, PZ is a pipe-shaped spring pedestal. F. The lower cementing pipe 4B6 has a vertical cylindrical shape, is connected to the center of the lower surface of the lower check valve ball chamber 4B5, and is opened downward. c. The concrete 4C is filled in the gap between the inside of the seismic wave receiving and transmitting cylinder 4A and the outside of the cementing device 4B, and as a result, the filled cement forms a seismograph mounting table 4C1 having an upper floor. In this case, the concrete will also be filled in the holes of the filled cement separation prevention hole 4A1. The upper end of the seismic wave receiving and transmitting cylinder 4A and the upper end of the cementing device 4B are arranged at the same level. Further, such filling work is performed on the ground.

D. The boring rod 5 has a flow path 5 on its axis.
A rod body 5A in which A1 is opened, and an upper coupling 5B for disengagement connected to the lower end of the rod body, and a channel 5B1 is formed in the axial center of the upper coupling 5B for disengagement.
And a right screw 5B2 to be screwed into the lower coupling for removal on the non-magnetic casing removal device side is engraved on the outer periphery of the protruding portion on the lower surface. E. The non-magnetic casing removing device 6 has a flow path 6A1 at its axis.
A disengagement cementing rod 6A, a disengagement lower coupling 6B connected to the upper end of the disengagement cementing rod 6A, and an oil seal cementing leak preventer 6C provided on the outer periphery of the lower end of the disengagement cementing rod 6A. Has been done. a. The lower coupling 6B for disengagement has a flow path 6B1 at its axial center.
In addition, a right screw 6B2 that is screwed into the right screw 5B2 on the protruding portion on the boring rod 5 side is engraved in the recess at the center of the upper surface, and the upper coupling 5B for disengagement is screwed. And this lower coupling 6 for detachment
A left screw 6B3 screwed into the left screw 3A of the non-magnetic seismograph storage cylinder 3 is engraved on the lower outer periphery of B, and the non-magnetic seismograph storage cylinder 3 is screwed into this. b. The cementing leakage preventive tool 6C with an oil seal is provided on the outer circumference of the lower end of the separating cementing rod 6A, and the cementing leakage preventive tool receiving chamber 4B in the cementing device 4B.
1 oil leakage prevention oil seal 6 attached to fit into
It is composed of C1. F. The seismograph section 7 is composed of a seismograph 7A, a geomagnetic compass 7B provided inside, a seismometer cap tire cord 7C for suspending from the ground, and a suspending wire 7D.

A second aspect of the present invention is a method of constructing a vertically movable seismograph installation device using the vertically movable seismograph installation device 1 of the first invention. First step (see Fig. 7) For the upper seismograph ascending / descending guide tube 2 made of iron vertically embedded at an appropriate depth in the ground, insert holes 8 from the bottom of the upper seismograph ascending / descending guide tube 2 into the lower strata. Dig. Second step (see FIG. 8) The left screw 6B3 of the lower coupling 6B for separation in the non-magnetic casing separation device 6 is screwed and connected to the left screw 3A of the non-magnetic seismograph storage cylinder 3, and the cementing leakage prevention with an oil seal is prevented. With the tool 6C fitted in the cementing leakage prevention tool receiving chamber 4B1 of the cementing device 4B, the seismic wave receiving and transmitting tube 4A is connected to the upper seismometer up-and-down guide tube 2 in a vertically inserted tube which is separated from the upper seismometer up-and-down guide tube 2 in an overlapping manner. To do. Third step (see FIG. 9) The cement 9 is press-fitted through the flow path 5A1 and the flow path 5B1 of the boring rod 5, the flow path 6B1 of the non-magnetic casing removing device 6, and the like. The cement that has been press-fitted is used as a cementing leakage prevention device receiving chamber 4B1 and an upper cementing pipe 4
B2, the upper check valve ball chamber 4B3, the check valve ball chamber communication pipe 4B4, the lower check valve ball chamber 4B5, the lower cementing pipe 4B6. Further, while pressing out the cement from the lower end of the lower cementing pipe, the space between the nonmagnetic seismometer storage cylinder 3 connected to the seismic wave receiving and transmitting cylinder 4A and the lower stratum 8A of the insertion hole 8 is press-fitted and filled.

Step 4 By rotating the boring rod 5 to the right, the non-magnetic casing detaching device 6 screwed to the boring rod 5 is detached from the non-magnetic seismometer housing barrel 3 connected to the seismic wave receiving and transmitting barrel 4A. After that, the non-magnetic casing removing device 6 is lifted to the ground together with the boring rod 5. Fifth step (see FIG. 10) The seismograph 7A that is suspended from the surface of the earth by the suspending wire 7D that is integrated with the seismograph cape tire cord 7C is attached to the seismograph mounting table 4C1. Install on the top of the floor. In this case, the seismograph 7A is configured such that the seismograph installation inclination angle is within 3 °, and the geomagnetic compass 7B and the upper seismograph lift guide tube 2 stored in the seismometer are capable of magnetic isolation of 4 m or more. In this way
Obtain a seismograph installation device that can move up and down.

[0017]

Since the present invention is configured as described above, it has the following effects. As shown in FIG. 1, according to the present invention, the upper seismometer elevation guide tube 2 and the non-magnetic seismometer housing 3 are used.
2 and 3 are overlappingly separated vertical intubations, and above the installation surface of the seismic wave reception and transmission device 4, the nonmagnetic seismometer housing 3 and the upper seismometer up-and-down guide pipe 2 are connected by an inner pipe vertical cavity. With such a configuration, noise from the ground surface or the like is cut off by the overlapping separation vertical intubation portion with respect to the installed seismometer, and at the same time, the seismic wave propagated from the epicenter can be accurately received and recorded. Furthermore, in the event of a failure in the installed seismograph, the seismograph installation device allows the seismograph to be lifted, repaired and replaced at any time, which can contribute to further improvement of the earthquake countermeasure development technology economically.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a first invention.

FIG. 2 is a perspective view in which a part of a seismic wave reception transmission device portion is cut away.

FIG. 3 is an enlarged vertical cross-sectional view of a main part of a cementing device portion of the seismic wave reception / transmission cylinder.

FIG. 4 is an exploded vertical cross-sectional view for explaining the relationship between the nonmagnetic seismometer housing and the seismic wave reception and transmission device.

FIG. 5 is a sectional view taken along line AA.

FIG. 6 is an exploded vertical cross-sectional view with a part cut away for explaining the relationship between the boring rod and the non-magnetic casing release device.

FIG. 7 is a vertical sectional view illustrating a first step in the second invention.

FIG. 8 is a vertical sectional view illustrating a second step in the second invention.

FIG. 9 is a vertical sectional view for explaining a third step in the second invention.

FIG. 10 is a vertical sectional view illustrating a fifth step in the second invention.

[Explanation of symbols]

1 Liftable seismometer installation device 2 Upper seismometer lift guide tube 3 Non-magnetic seismometer housing 4 Seismic wave receiving and transmitting device 5 Bowling rod 6 Non-magnetic casing release device 7 seismograph department

Claims (4)

(57) [Claims] 1. A seismograph ascending / descending guide tube (2) not shown below
Magnetic seismometer housing (3) and seismic wave receiving and transmitting device (4)
And boring rod (5) and non-magnetic casing detached
A seismograph installation device capable of moving up and down, comprising a device (6) and a seismograph section (7) . The upper seismometer lift guide tube (2) is made of iron and
It is buried vertically at an appropriate depth. The non-magnetic seismometer housing (3) is made of non-magnetic material.
It is a vertical cylinder that is made up of the bottom of the upper seismometer lift guide pipe (2).
Vertical to the insertion hole (8) dug in the lower formation (8A)
The non-magnetic seismograph housing (3) buried in the upper earthquake
Vertically separated from the meter lift guide tube (2) by overlapping
Inside the non-magnetic seismometer housing (3), which is connected in the intubated state
A left screw (3A) is engraved on the upper end of the circumference, and the lower end of the outer circumference
A right screw (3B) is engraved on the. The seismic wave receiving and transmitting device (4) is a seismic wave receiving and transmitting tube (4
A) and the center of the seismic wave reception and transmission cylinder.
From menting device (4B) and concrete (4C)
The seismic wave receiving and transmitting tube (4A) is composed of non-magnetic upper end
With the right screw (3B) of the seismograph housing (3) screwed on
It is composed of a vertical cylinder of a certain length that is connected, and the side surface is in an appropriate position.
A filling cement peeling prevention hole (4A1) was opened in
Right screw (4A2) is engraved on the inner surface of the end,
The device (4B) is located in the bottom of the seismic wave receiving and transmitting tube (4A).
The concrete (4C) is installed so that it penetrates to the heart, and the concrete (4C)
Filling the gap between the inside and the outside of the cementing device (4B)
Seismic having a top floor with this filled cement
A measuring table (4C1) is formed. The flow path (5A1) is opened in the axis of the boring rod (5).
Connected to the installed rod body (5A) and the lower end of the rod body.
Consist of a disengaged upper coupling (5B)
And the flow path is in the axis of the upper coupling (5B) for disengagement.
(5B1) is opened and outside of the protrusion on the bottom
The lower cup for removal on the non-magnetic casing release device side
The right screw (5B2) screwed on the ring is engraved. The non-magnetic casing release device (6) has a flow path (6A
A separating cementing rod (6A) having 1),
The detachment cementing rod (6A) connected to the upper end
Decoupling lower coupling (6B) and disengagement cementing
With oil seal provided on the outer periphery of the lower end of the rod (6A)
Composed of cementing leakage prevention tool (6C) for removal
The lower coupling (6B) has a flow path (6B1) at the axis.
In addition to having it, the bowling lock is
It is screwed to the right screw (5B2) on the protrusion on the side of the cable (5).
The right screw (6B2) is
A non-magnetic seismometer is stored in the lower outer circumference by screwing the 5G
The left screw (6) that is screwed into the left screw (3A) of the tube (3)
B3) is engraved, and the non-magnetic seismometer housing (3) is attached to it.
Cementing leakage preventive tool (6
C) is the outer circumference of the lower end of the separating cementing rod (6A)
The cementing device (4B)
Leakage preventive device attached to fit into the receiving room (4B1)
It is composed of a leakage prevention oil seal (6C1). The seismograph section (7) is installed inside the seismograph (7A).
Geomagnetic compass (7B) and ground for hanging from the ground
Seismometer cap tire cord (7C) and hanging wire
(7D). 2. The seismograph installation device according to claim 1, which is capable of moving up and down.
The cementing device (4B) in
Leak prevention tool receiving room (4B1), upper cementing pipe (4B
2), upper check valve ball chamber (4B3), check valve ball chamber
Connecting pipe (4B4), lower check valve ball chamber (4B5), lower
Section cementing pipes (4B6) are connected in sequence from top to bottom.
Centered on the bottom of the seismic wave reception and transmission tube (4A)
Installed in the state of penetrating up to, cementing leakage prevention tool
The receiving chamber (4B1) is configured like a funnel and has an upper cement
The vertical pipe (4B2) has a vertical cylindrical shape and has a cementing leak.
It is connected to the lower end of the leak preventer receiving chamber (4B1) and the upper check
The valve ball chamber (4B3) is a cylindrical chamber whose top and bottom are sealed.
Configured, connected to the lower end of the upper cementing pipe, inside
The action of the ball operating spring (BS) located below
A check valve ball (VB) acting higher is arranged,
The check valve ball chamber connecting pipe (4B4) is configured in a vertical cylindrical shape,
Connected to the center of the lower surface of the upper check valve ball chamber (4B3),
The lower check valve ball chamber (4B5) is a circle whose top and bottom are sealed.
It is configured as a cylindrical chamber and is connected to the lower end of the check valve ball chamber connecting pipe.
And the ball operating spring (B
Check valve ball (VB) acting upward by the action of S)
Is installed, and the lower cementing pipe (4B6) has a vertical cylindrical shape.
The lower check valve ball chamber (4B5) in the center of the lower surface
A vertically movable seismograph installation device, which is connected and opened downward . 3. The non-magnetic seismograph storage cylinder (3) and the seismic wave reception and transmission cylinder (4A) are not screwed together, but the non-magnetic seismometer storage cylinder (3) and the seismic wave reception and transmission cylinder (4A) are integrated. claim whole thing is configured as a seismic wave reception transfer tube 1
Alternatively, the up-and-down seismograph installation device according to claim 2. 4. The method according to any one of claims 1 to 3.
A method for constructing a device for installing a vertically movable seismograph, characterized by comprising the following steps using the device for installing a vertically movable seismograph. 1st step For the upper seismograph ascending / descending guide tube (2) made of iron vertically buried at an appropriate depth in the ground, insert an insertion hole (8) from the bottom of the upper seismograph ascending / descending guide tube (2) to the lower strata. Dig up. Second step: The left screw (6B3) of the lower coupling (6B) for separation in the nonmagnetic casing separation device (6) is screwed and connected to the left screw (3A) of the nonmagnetic seismometer housing (3), and the oil is also used. With the cementing leak preventer (6C) with a seal fitted in the cementing leak preventer receiving chamber (4B1) of the cementing device (4B), the seismic wave reception and transmission tube (4A) is connected to the upper seismometer lifting guide pipe (2). Are connected in the state of vertical intubation which is separated by overlapping. Step 3 Channel (5A1), channel (5B) of boring rod (5)
1), the flow path (6B) of the non-magnetic casing release device (6)
Cement (9) is pressed in through 1) or the like. The cement thus press-fitted is made to flow into the cementing device (4B) . Furthermore, a non-magnetic seismograph storage cylinder (3) connected to the seismic wave reception and transmission cylinder (4A) while the cement is being squeezed out from the lower end of the cementing device (4B) and the lower stratum (8A) of the insertion hole (8). Press fit into the gap. Fourth step By rotating the boring rod (5) to the right, the non-magnetic casing detaching device (6) screwed to the boring rod (5) is connected to the seismic wave receiving and transmitting tube (4A). After being detached from (3), the non-magnetic casing detaching device (6) is lifted to the ground together with the boring rod (5). Fifth step seismograph The seismograph (7A) suspended from the surface of the earth by the suspension wire (7D) that is connected and integrated with the tire code (7C) is installed on the seismograph mounting table. The upper surface of (4C1) is installed on the upper surface of the floor. In this case, the seismograph (7A) has a seismograph installation inclination angle of 3 ° or less, and the geomagnetic compass (7B) and the upper seismometer lift guide tube (2) stored in the seismometer have a magnetic isolation of 4 m or more. To be able to do so.