JP2001208858A - Alternate focus for geophysical exploration - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems that development of a safe and efficient focus is required following increase of necessity of exploration at an overpopulated district, a secluded place or the like, though seismic exploration has execution plans on many fields from its effectiveness, and that, on the other hand, a dismounting and dismantling work of an inflator is required to be executed beforehand in the case of scrapping motor vehicle, in the situation that an air bag using the inflator for protecting the life of a passenger is developed and obliged to be installed on every car. SOLUTION: In this alternate focus for geophysical exploration, the inflator 1 is installed in a sealed pressure vessel 3, and a longitudinal wave (P wave) is generated by propagating striking energy in the vertical direction to an exploration target surface, and a transverse wave (S wave) is generated by propagating the energy in the parallel direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention utilizes an inflator of an air bag generated when an automobile is dismantled and dismantled as a useful hypocenter apparatus for seismic exploration, which is one method of physical exploration.

[0002]

2. Description of the Related Art Conventionally, seismic exploration is one of the means of physical exploration in the investigation of geology, underground and artificial structures.
Elastic waves generated from the hypocenter are converted to the target surface (that is,
The seismic survey method is to measure the waves that propagate from the ground surface, underground wellbore walls, and artificial structures) and return from the underground strata and structures by reflection or refraction, and conduct underground and structure exploration. It is. Seismic exploration is widely used because it can acquire geological structure information up to deep underground with high accuracy.

[0003] The epicenter, which is the energy source in seismic exploration,
Roughly, it can be divided into explosive epicenters where dynamite is frequently used and non-explosive epicenters without explosives. Non-explosive epicenters are classified into mechanical epicenters, electric discharge epicenters, thermodynamic epicenters, air release epicenters, and sources using trace explosives. There are mechanical vibration sources that send a periodic waveform for a certain period of time and vibrate the target object, and those that give a physical shock to the target object, such as the weight drop method or the knocking method, and use it as the epicenter . Some electric discharge epicenters generate sparks electrically and use them as epicenters. Some thermodynamic epicenters use a mixture of gas and oxygen, such as propane and butane, to explode and use them as epicenters. The air release epicenter sends compressed air into a sealed device, releases the compressed air into the water by the action of a piston, and uses the expansion of the air bubble at this time as the epicenter. The epicenter using trace explosives
There are hypocenters that explode small explosives in water and generate seismic pulses.

Here, a specific example of the conventional hypocenter apparatus will be described as follows. 1. Dynamite In surface exploration, a hole is dug in the surface of the ground, dynamite is set in it, and explosives are blown to become the epicenter. 2. Artificial vibration device (vibrator) By artificially applying forced vibration to the surface of the earth while changing the frequency and analyzing the emitted waveform and the waveform recorded by the receiver, it is possible to extract waves reflected from the underground. Used for exploration on land. The equipment is large-scale and has been used for land exploration mainly in deep underground such as oil exploration. 3. Compressed air (air gun) Air guns use the energy generated by releasing high-pressure air as the epicenter, and are often used in marine seismic surveys. On land, a pool filled with water will be prepared and implemented. 4. A mechanical weight is dropped freely, or a person strikes down a hammer (weight drop method, plate hitting method) to generate impact energy, which is used as the epicenter. There is also a type in which compressed air is stored in a sealed device, this air is released, and a piston is rapidly moved to be a hypocenter.

[0005]

An advantage of the dynamite explosive epicenter is the high output energy. The disadvantage is that safety considerations are indispensable and handling is cumbersome.
Use is restricted near homes. Non-explosive epicenters do not have high output energy, but have advantages such as economy and handling safety. Disadvantages include a large vibrating device or the need for special data processing. In the case of an air gun epicenter using compressed air, the equipment becomes large and transportation becomes cumbersome. The mechanical tapping method is convenient, but the energy generated is small and not constant, and the weight drop method makes it difficult to move the equipment. When hit by a person, the device is simple but has low energy, and has the drawback that the epicenter is not constant. Although seismic exploration has plans to be implemented at many sites due to its effectiveness, as the need for exploration in densely populated and remote areas increases, it is desired to develop safe and efficient epicenters.

[0006] The elements desired for the new hypocenter apparatus are as follows. 1. Low cost: Exploration costs can be reduced. 2. Portability: Easy to move and install. 3. High energy: Energy reaches deep. 4. Reproducibility: The energy value of the epicenter is stable regardless of location and time. 5. Safety: low risk, work in remote areas such as densely populated areas and mountainous areas where large equipment is difficult to carry and use. 6. Environmental protection: Contribute to environmental protection.

On the other hand, in the automobile industry, airbags using inflators have been developed to protect the lives of passengers.
Now it is mandatory for all cars. When a car with an airbag is scrapped and dismantled, it is necessary to remove the inflator in advance and perform dismantling work in order to avoid sudden generation of gas from the inflator during the dismantling work. Depending on the manufacturer, there are various types of inflators, such as those that generate gas using a gas generating agent, those that use high-pressure compressed gas, and various types of gas generating agents. An inflator using a gas generating agent is a device that suddenly generates gas at the time of a car collision and inflates the air bag.When the collision is detected by a sensor, the ignition signal in the inflator reacts with an electric signal and a pellet form. The gas of the gas generating agent arranged in the above is rapidly generated. In the case of using a high-pressure compressed gas, when a collision is detected by a sensor, the high-pressure gas in the inflator is rapidly released by a signal.

In any case, the inflated gas inflates a bag having a volume of 50 to 300 liters, the maximum pressure in the bag is 180 atm, the tip of the bag inflates at a speed of 180 to 370 km / h, and a large elasticity is obtained. Generates wave energy. That is, all inflators are common in that they rapidly generate high-pressure gas.

[0009]

The present invention pays attention to this point, and uses a mass-produced inflator (a device for rapidly generating high-pressure gas) as an alternative to the conventional explosive hypocenter and mechanical epicenter. It is intended to be used. In addition, the present invention enables the reuse of inflators as waste generated by the dismantling of automobiles at present, and can be used effectively as a hypocenter for geophysical and seismic exploration, contributing to environmental conservation. It can be said that it is a technology. The airbag is composed of a sensor, an inflator, and a gas bag. In the present invention, only the connection cable between the inflator and the sensor is used, and electricity flows from the connection cable.

According to a first aspect of the present invention, a small amount of explosive is ignited by an electric signal and gas is generated by a propellant, or an inflator of an airbag for a vehicle in which a high-pressure compressed gas is released by an electric signal is directly used as a hypocenter. This is an alternative epicenter. The invention according to claim 2 employs the simplest configuration, and is an alternative epicenter in which a shallow hole is excavated in the surface of the ground and gas in the inflator is expanded in the hole or in the ground where the hole is backfilled. . According to the third aspect of the present invention, a longitudinal wave (P wave) is provided by installing an inflator in a pressure-resistant container that is open in one direction, matching the open surface with the surface to be searched, and propagating the gas expansion force directly to the surface to be searched. ) Is an alternative epicenter that generates impact energy from the open surface, and the surface as the surface to be explored is flattened, and gas may escape if gas leakage prevention measures are not taken at the contact surface .
If the force rises easily due to the reaction force, the energy will not be transmitted to the surface to be searched (the ground). Therefore, when the pressure-resistant container is light in weight, it is necessary to employ a fixing means such as a support or a wire.

According to a fourth aspect of the present invention, an inflator is installed in a sealed pressure-resistant container, and a longitudinal wave (P wave) and / or a transverse wave (S wave) are generated by transmitting impact energy to a surface to be searched. It was done. According to the invention of claim 5, an inflator is installed in a sealed pressure-resistant container, and the impact energy is propagated in a direction perpendicular to the surface to be searched, so that longitudinal waves (P
Waves). According to the invention of claim 6, an inflator is installed in a sealed pressure-resistant container, and the impact energy is propagated in a direction parallel to the surface to be searched, so that the shear wave (S
Waves).

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention. The hypocenter apparatus according to the present invention uses only a sensor, an inflator, and a gas bag constituting an airbag, and only a cable connecting the inflator and the sensor. An inflator 1 as an epicenter, and a starting means (detailed illustration is omitted) of the inflator 1 connected to a connection cable 2 of the inflator 1 are indispensable components, and a gas generated by the inflator 1 is used as an energy source as needed as an energy source. It comprises a pressure-resistant container 3 for propagating to a surface to be searched, such as a structure, and fixing means 4 for the pressure-resistant container 3.

The inflator 1 is a device for rapidly generating gas, and usually generates gas in an iron container. In an airbag for an automobile, the generated high-pressure gas is rapidly diffused into the bag to inflate the bag. This propulsion is used as the epicenter by launching it toward the surface to be searched, such as the ground surface. If the amount of gas generated by the inflator 1 is the same standard, it is constant, so that the energy value as the epicenter is kept constant, and consistent data is acquired in the repetition and relocation survey. be able to. Further, since the energy amount of the epicenter can be dealt with by increasing the number of inflators 1, it can be used even when the target depth is deep, and becomes an epicenter for exploration suitable for the target. Since gas generation is instantaneous, it becomes a pulse-like hypocenter, and a waveform suitable for analysis is output, so that search accuracy is improved. If the direction of incidence of the high-pressure gas on the surface to be searched, for example, the surface of the ground, is changed, it becomes a P-wave or S-wave epicenter, and its application range is expanded. Since the generation of gas is based on an electric signal, even if a plurality of inflators are used, they can be easily synchronized and easily linked with the geophone, thereby improving the analysis efficiency. The starting means of the inflator 1 is connected to the connection cable 2 to supply a current to the igniting agent of the inflator 1 to cause a short circuit to ignite the gas generating agent (propellant), or to use the gas of the inflator 1 in the inflator 1 using high-pressure gas. It is opened with medicine.

Generally, the inflator 1 is installed in the pressure vessel 3, and the pressure in the pressure vessel 3 is increased by the inflated gas. This energy is rapidly moved by a propagation device including a piston 5 and collides with an object to be searched to make elastic wave energy. Generally, the pressure-resistant container 3 is desirably made of metal, but may be made of plastic, composite material, or wood as long as it can withstand gas expansion. It can be said that it is enough if energy can be transmitted to the exploration target surface. The fixing means 4 of the pressure-resistant container 3 is used as necessary to suppress the reaction force of the inflated gas and concentrate energy on the object to be searched.

The control of the elastic wave characteristics is as follows. A longitudinal wave is generated by applying a gas that is emitted and expanded from the inflator 1 in the pressure-resistant container 3 in a direction substantially perpendicular to the surface to be searched, so that a longitudinal wave (P wave) is generated. Since the gas volume increases rapidly, it is transmitted to the target surface in an impact, the waveform of the epicenter is close to a spike, and a good waveform can be transmitted to the target. A transverse wave (S-wave) is generated by generating elasticity in parallel with the surface to be searched by using gas that is emitted and expanded from the inflator 1 in the pressure-resistant container 3 through a propagation means such as a piston. This is the shear wave (S wave) epicenter. Also, if an impact is applied via the propagation device while being inclined with respect to the surface to be searched, longitudinal waves and transverse waves will be generated simultaneously.

Controlling the epicenter energy is simple. That is, the amount of gas generated from one inflator is the same in the same standard, and has energy reproducibility. The gas generated by arranging a plurality of inflators on the surface to be searched increases linearly. By changing the amount of the inflator used before full-scale exploration and testing, it becomes easy to determine the optimum amount of the inflator. That is, the number of inflators to be put in the same pressure-resistant container can be increased to increase the energy. Further, there is a case where noise is removed by intentionally operating at a plurality of locations. It can be activated multiple times at the same location and the same record can be recorded multiple times to make the waveform stand out.

Here, a description will be given with reference to an embodiment shown in the drawings. Figure 1 can be said to be an alternative source of dynamite because the generated gas is directly transmitted as energy. Therefore, the pressure vessel 3 is unnecessary. That is, a shallow hole H is excavated on the surface of the ground, an inflator 1 is installed therein, and electricity is supplied from a connection cable 2 derived from the inflator 1 so that the gas in the inflator 1 is instantaneously filled in the hole H. . Hang it with the connection cable 2 or hang it separately with a wire or the like. In this embodiment, 360-degree energy is diffused, but only energy in a predetermined direction is extracted and measured. The gas may be filled after the hole H is backfilled if necessary. Although not shown, if the hole H is shallow, the inflator 1 may be installed at the bottom.

FIG. 2 shows a case in which the energy of gas is directly transmitted to the ground surface as a surface to be searched using the pressure vessel 3. The pressure-resistant container 3 is provided with an opening 31 opened in one direction, the inflator 1 is installed at a position opposite to the opening 31, and the opening 31 is pressed against a surface to be searched which is a flat ground, and a wire is used as the fixing means 4. The reaction force is concentrated on the surface to be searched for the impact. In this example, since the energy propagates in a direction perpendicular to the surface to be searched, the longitudinal wave (P
Wave). Although not shown, the opening 31 on the ground surface side may be covered with the same material or a flexible rubber film as the bag of the airbag, and the impact may be concentrated on the surface to be searched without being affected by irregularities on the ground surface.

FIG. 3 also shows an example of surface exploration, in which an inflator 1 is installed in a tightly sealed pressure-resistant container 3, and a T-shaped piston 5 is drawn downward from inside the pressure-resistant container 3, so that the surface to be inspected is The vertical arrangement is made such that the tip of the piston 5 is applied to the striking plate 6 placed on the ground surface. Gas is rapidly generated from the connecting cable by the inflator starting means, and energy is propagated in a direction perpendicular to the ground surface, which is the surface to be searched.
(Wave) It becomes the epicenter. The fixing means 4 is a pillar. Since the gas volume increases rapidly, it is transmitted to the surface to be searched in a shocking manner, and the waveform of the epicenter can propagate a good waveform close to a spike.

FIGS. 4 and 5 can be said to be alternatives to the shear wave (S-wave) epicenter that has been conventionally implemented as the plate knocking method. In the sealed pressure-resistant container 3, a piston 5 that moves in parallel with the ground surface as a surface to be searched due to gas expansion of the inflator 1 is provided, and the piston 5 is integrally provided with a hitting plate 6 that slides outside the pressure-resistant container 3. It is. In FIG. 4, the hitting plate 6 is a heavy flat plate 7 set on the ground surface.
It slides up, causing a shear force and becoming an epicenter. Reference numeral 8 denotes a stand for the pressure vessel 3. In the embodiment shown in FIG. 5, the hitting board 6 is installed directly on the ground surface, which is the surface to be searched, and a shear force is generated between the hitting plate 6 and the ground surface to be the epicenter. These can be said to generate a transverse wave (S wave) by generating a transverse elastic wave on the ground plane.

FIG. 6 and FIG. 7 are also alternative epicenters of the shear wave (S-wave) epicenter. This is the same as the basic configuration shown in FIG. 3, but the one shown in FIG. 3 is defeated. FIG.
A piston 5 that goes out of the pressure-resistant container 3 is arranged so as to press the side surface of a heavy hitting plate 6 placed on the ground surface. Reference numeral 8 denotes a frame of the pressure vessel 3, and reference numeral 4 denotes a wire as fixing means. FIG. 7 shows a configuration in which a flat plate 7 is placed on the surface of the ground, and a hitting plate 6 is placed on the receiver. The hitting plate 6 slides on the flat plate 7.

In the above, energy is applied in a direction perpendicular to the surface of the surface to be searched (longitudinal wave source) or in a parallel direction (short wave source), but detailed illustration is omitted. However, by transmitting energy obliquely to the surface, which is the surface to be explored, it is also possible to simultaneously generate longitudinal and transverse sources.

Next, a hypocenter apparatus not in the ground surface but in the well S will be described. In FIG. 8, the inflator 1 is installed inside a cylindrical pressure-resistant container 3 whose upper and lower sides are closed, and a propagation device including a vertically split cylindrical body 10 surrounding the inflator 1 is a well S which is a surface to be searched. It is arranged so as to move rapidly in the direction perpendicular to the pit wall S1. Pressure vessel 3
Is lowered by using a wire or by a connection cable 2 from an inflator 1. After being fixed in the well S, an electric signal is applied from the surface of the ground via the connection cable 2 to ignite the inflator 1 to generate gas. The elastic wave propagates by simultaneously colliding against the side of the pit wall S1. At this time, a longitudinal wave (P wave) is generated (FIG. 9).

As shown in FIG. 10, the inflator 1 is surrounded by a rubber cylinder 11 instead of the vertically divided cylinder 10, and the rubber cylinder 1
1 may collide with the pit wall S1. Instead of the rubber cylinder 11, a plastic or a composite member having flexibility may be used. Further, as shown in FIG. 11, the inflator 1 may be simply provided in the pressure-resistant container 3 so that the impact is propagated to the periphery.

FIGS. 12 and 14 show cross waves (S) in the well S.
(Wave) Generates epicenter. In this embodiment,
The inflator 1 is installed in the sealed pressure vessel 3 and the piston 5 from inside the pressure vessel 3 is disposed so as to move rapidly in a direction parallel to the well wall S1 of the well S as the surface to be searched, that is, downward. It is. The piston 5 is internally connected by a plurality of holding lines 12 so as to be able to return. The pressure vessel 3 has a diameter smaller than that of the well S and is easy to descend. A fixed arm 13 that can be opened and closed is attached to the outside of the pressure vessel 3 and is opened at a predetermined location. It can be fixed by pressing against S1. (FIG. 13) A temporary fixing pin 14 of the piston 5 is arranged in the pressure-resistant container 3. In order to lower the pressure vessel 3 into the well S, the connection cable 2 from the inflator 1 is used or a separate cable is used. Alternatively, the connection cable 2 from the inflator 1 is connected to the multi-core cable in the cable for suspending the pressure-resistant container 3 so that the cable can be operated on the ground. When an electronic signal is given from the surface of the ground via the connection cable 2 to ignite the gas and expand in the pressure vessel 3, the piston 5 is rapidly propelled downward, and at this time, a shear force is applied at the contact surface with the pressure vessel 3. A transverse wave (S wave) will be generated. When the piston 5 moves downward, the temporary fixing pin 14 is opened, but the piston 5 is moved by the holding wires 12, 12.
In the next use, the piston 5 is returned into the pressure-resistant container 3 and the piston 5 is stored in the upper portion by using the temporary fixing pin 14 without being dropped out of the container. By giving an electric signal from the ground surface and igniting the inflator 1 in the wellbore S, gas is generated, and the piston 5 is rapidly moved in a direction parallel to the wellhead S1 to impact the wellhead S1, Elastic waves are propagated. At this time, a transverse wave (S wave) is generated.

In the above description, the embodiment used on the ground surface and in a well is described. However, it can be used for exploring a concrete structure, installing it in a gutter, or installing it in a tunnel.

[0027]

As described above, the present invention can be said to be suitable as an alternative to conventional explosive and mechanical shock sources. The effects of the present invention are as follows. 1. Although a new inflator may be used, inflators can be procured inexpensively by diverting inflators collected from end-of-life vehicles, and are socially valued for recycling and effective use of resources and environmental conservation. . 2. By using an inflator, a compressor for gas compression, a vibration device, and the like are not required, and the device can be downsized. 3. Compared to mechanical epicenters such as the plate knock method, the epicenter has higher energy and more stable energy. 4. By increasing or decreasing the amount of inflators used simultaneously, the energy of the epicenter can be easily controlled. It can be used mainly as a substitute for dynamite and mechanical seismic sources in resources, civil engineering, the environment and related surface seismic surveys, and downhole geophysical surveys. It is.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an example in which the present invention is used as an alternative epicenter of dynamite.

FIG. 2 is a schematic diagram showing an example in which a gas expansion force is directly transmitted to the ground surface to obtain a longitudinal wave epicenter.

FIG. 3 is a schematic diagram showing that a piston in a pressure vessel is moved to cause a striking plate to collide with the ground surface to be a longitudinal wave epicenter.

FIG. 4 is a schematic diagram showing that a piston in a pressure vessel is moved to slide a hitting board on a flat plate on the surface of the ground to make a transverse wave epicenter.

FIG. 5 is a schematic diagram showing that a piston in a pressure vessel is moved to directly slide a hitting board on the surface of the ground to obtain a transverse wave epicenter.

FIG. 6 is a schematic diagram showing that a piston in a pressure-resistant container presses a side surface of a heavy hitting plate placed on the ground surface to make a lateral wave epicenter.

FIG. 7 is a schematic diagram showing a method in which a flat plate is placed on the surface of the ground, and a hitting board is placed on the flat board;

FIG. 8 is a schematic diagram of a source device in a well S, in which a longitudinal wave source is obtained by using a vertically split cylindrical body in a pressure vessel as a propagation device.

9 is a cross-sectional view of a main part in a use state of FIG. 8;

FIG. 10 is a cross-sectional view of a main part of an example in which an inflator in a pressure vessel is surrounded by a rubber cylinder in a hypocenter apparatus in a well S.

FIG. 11 is a schematic diagram in which an inflator is installed in a pressure vessel and a shock is propagated from a peripheral edge to a pit wall to form a longitudinal wave epicenter.

FIG. 12 is a schematic diagram of a pressure vessel being lowered into a wellbore, and a piston being moved downward in parallel with a wellhead side to be a descent as a transverse wave epicenter.

FIG. 13 is a schematic view showing a state where the pressure-resistant container of FIG. 12 is fixed.

FIG. 14 is a schematic view showing a state where the inflator is operated from FIG. 13;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Inflator 2 Connection cable 3 Pressure-resistant container 4 Fixing means 5 Piston 6 Dotting board 7 Flat plate 8 Mounting stand 10 Vertically divided cylinder 11 Rubber cylinder 12 Holding wire 13 Fixed arm 14 Temporary fixing pin

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[Procedure amendment]

[Submission Date] May 8, 2000 (2000.5.8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0001

[Correction method] Change

[Correction contents]

[0001]

BACKGROUND OF THE INVENTION The present invention is to use the air back of the inflation data that occurs at the time of disposal dismantling of motor vehicles, as epicenter devices useful of one of the methods is seismic geophysical exploration.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction contents]

The inflator 1 is a device for rapidly generating gas, and usually generates gas in an iron container. In an airbag for an automobile, the generated high-pressure gas is rapidly diffused into the bag to inflate the bag. This propulsion is used as the epicenter by launching it toward the surface to be searched, such as the ground surface. If the amount of gas the same standard generated by in <br/> frame data 1, since the constant is, keep the energy value of the epicenter constant, in the investigation of moving the repetition or position, consistent Data can be obtained. Further, since the energy amount of the epicenter can be dealt with by increasing the number of inflators 1, it can be used even when the target depth is deep, and becomes an epicenter for exploration suitable for the target. Since gas generation is instantaneous, it becomes a pulse-like hypocenter, and a waveform suitable for analysis is output, so that search accuracy is improved. If the direction of incidence of the high-pressure gas on the surface to be searched, for example, the surface of the ground, is changed, it becomes a P-wave or S-wave epicenter, and its application range is expanded. Since the generation of gas is based on an electric signal, even if a plurality of inflators are used, they can be easily synchronized and easily linked with the geophone, thereby improving the analysis efficiency. The starting means of the inflator 1 is connected to the connection cable 2 to supply a current to the igniting agent of the inflator 1 to cause a short circuit to ignite the gas generating agent (propellant), or to use the gas of the inflator 1 in the inflator 1 using high-pressure gas. It is opened with medicine.

Claims (14)

[Claims] A small amount of explosive is ignited by an electric signal and gas is generated by a propellant, or an inflator of an airbag for a vehicle in which high-pressure compressed gas is released by an electric signal is used as the epicenter. An alternative epicenter for geophysical exploration. 2. An alternative epicenter for geophysical exploration wherein a shallow hole is drilled in the surface of the ground, or the hole is backfilled to expand the inflator gas in the ground. 3. A longitudinal wave (P wave) by installing an inflator in a pressure-resistant container having one side open, making the open surface coincide with the surface to be searched, and directly transmitting the expansion force of the gas to the object to be searched.
2. An alternative source for geophysical exploration according to claim 1, wherein: 4. An inflator is installed in a sealed pressure-resistant container, and a longitudinal wave (P wave) and / or a transverse wave (S wave) are generated by transmitting impact energy to a surface to be searched. The alternative source for geophysical exploration according to claim 1. 5. The physics according to claim 1, wherein an inflator is installed in a sealed pressure-resistant container, and a longitudinal wave (P-wave) is generated by propagating impact energy in a direction perpendicular to a surface to be searched. Alternative epicenter for exploration. 6. The geophysical survey according to claim 1, wherein an inflator is installed in a sealed pressure-resistant container, and a transverse wave (S-wave) is generated by propagating impact energy in a direction parallel to a surface to be searched. Alternate epicenter for. 7. An alternative hypocenter for geophysical exploration according to claim 5, wherein a piston coming out of the pressure-resistant vessel is used as a propagation device to propagate the inflation force of the gas to the surface to be explored. 8. The hypocenter apparatus for physical exploration according to claim 5, wherein the propagating apparatus is a hitting board placed on the surface to be searched in addition to the piston. 9. The explosion force of a gas is transmitted to a surface to be searched by using a piston coming out of the pressure-resistant container and a hitting plate placed on the surface to be searched as a propagation device. Alternative epicenter for geophysical exploration. 10. The propagation device according to claim 6, wherein the propagating device is a piston coming out of the pressure-resistant container and a hitting plate placed on the surface to be probed so as to propagate the inflation force of the gas to the surface to be probed. Alternative epicenter for geophysical exploration. 11. The physics according to claim 6, wherein the propagation device is a piston coming out of the pressure-resistant container, a flat plate placed on the surface to be searched, and a hitting plate pressed on the flat plate and pressed by the piston. Alternative epicenter for exploration. 12. The transmission device is a vertically split cylinder surrounding the inflator, and the vertically split cylinder collides with the peripheral side of the pressure-resistant container,
The alternative epicenter for geophysical exploration according to claim 5, characterized in that the impact energy is propagated vertically in the wellbore. 13. A power transmission device comprising a piston disposed in a pressure-resistant container, wherein the piston is rapidly pushed down to generate a shearing force on an inner wall of the pressure-resistant container, thereby transmitting energy in a horizontal direction in the wellbore. Alternate epicenter for geophysical exploration. 14. An alternative epicenter for geophysical exploration according to claim 1, wherein a plurality of inflators are used.