KR102545398B1 - An apparatus of testing resistance against earthquake and method thereof - Google Patents

Abstract

Geotechnical structure model seismic test apparatus and seismic test method are provided. The geotechnical structure model seismic test apparatus includes a soil reservoir for accommodating the ground model therein; and a vibration generating body for applying vibration to the ground model and the toe-receptor to conduct a seismic test of the toe-receptor, and the toe-receptor may include a plurality of laminated structures mutually stacked.

Description

Geotechnical structure model seismic test apparatus and seismic test method {AN APPARATUS OF TESTING RESISTANCE AGAINST EARTHQUAKE AND METHOD THEREOF}

The present invention relates to a ground structure model seismic test apparatus and a seismic test method.

In order to understand the seismic performance of geotechnical structures such as retaining walls and slopes, seismic tests can be performed on geotechnical structure models. Vibration measurement devices such as accelerometers apply seismic motion to the geotechnical structure model installed in each part through a vibration table, and analyze the vibration measurement results at this time.

Here, when the earthwork wall is firmly fixed, seismic waves are reflected from the wall and may have an unnecessary effect on the dynamic behavior of the geotechnical structure model. In order to mitigate this, it is necessary to provide a ductile wall foundation, such as a laminar shear box and an equivalent shear beam box, in which the foundation wall can move flexibly. However, since the ductile wall foundation is composed of several layers, there is a problem in that it is impossible to install an observation window to observe the macroscopic behavior of the geotechnical structure model.

Therefore, the traditional rigid wall soil foundation and the soft wall soil foundation are complementary to each other depending on the purpose and characteristics of the test. If the soil tank required is different depending on the purpose and characteristics of the test, it is necessary to remove the soil tank installed on the existing shaking table and then reinstall another soil tank on the shaking table. Since earthworks are generally about several hundred Kg, heavy equipment such as winches or small forklifts are required for this work, and there is a problem in that considerable time and cost may be required.

Korean Patent Registration No. 10-1904229

The problem to be solved by the present invention is a geotechnical structure model seismic test apparatus and seismic test capable of variably adjusting the boundary conditions of a soil bath only by manipulating and replacing some parts without replacing the entire soil vessel according to the purpose and characteristics of the ground structure model seismic test is to provide a way

In addition, since the geotechnical structure model observation window can be installed by removing or replacing it, the seismic test is easy, and the geotechnical structure model seismic test apparatus and seismic test method can reduce the time and cost required for the seismic test. is to provide

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

A geotechnical structure model seismic test apparatus according to an aspect of the present invention for achieving the above object includes a soil reservoir for accommodating the ground model therein; A ground structure model seismic test comprising a vibration generating body for performing a seismic test of the ground structure model and the soil structure receptor by applying vibration to the ground structure model, wherein the soil structure model includes a multi-layered structure stacked on top of each other. device may be included.

In addition, the tojo receptor may include a detachable structure in which at least a portion thereof is detachable.

In addition, an observation panel capable of observing the ground model may be mounted in the partial region from which the separable structure is removed from the earthwork receptor.

In addition, the laminated structures may be mutually moved in a certain range based on the vibration while being connected to each other through interlocking means.

In addition, it further includes an interlocking fixing module for fixing movement between the laminated structures, wherein the interlocking fixing module is spaced apart from each other to form a space between each other on each of the laminated structures, and is provided in a height direction of the laminated structures. It may include a plurality of fixing pieces, and a fixing table bound between the fixing pieces through the separation space and integrally fixing the respective laminated structures.

A ground structure model seismic test method according to another aspect of the present invention for achieving the above object includes the steps of preparing a soil reservoir for accommodating the ground model therein; A step of applying vibration to the ground model and the toestone receptor through a vibration generator to perform a seismic test of the tombstone receptor, wherein the tombstone receptor may include a plurality of laminated structures stacked on each other.

According to the present invention as described above, there are one or more of the following effects.

According to the present invention, it is possible to provide a ground structure model seismic test apparatus capable of variably adjusting the boundary condition of a ground structure model by manipulating and replacing only some parts without replacing the entire soil structure according to the purpose and characteristics of the ground structure model seismic test.

In addition, since the geotechnical structure model observation window can be installed in a manner such as removal or replacement, it is possible to provide a geotechnical structure model seismic test apparatus that facilitates seismic testing and can reduce the time and cost required for seismic testing. .

1 is a perspective view showing a geotechnical structure model seismic test apparatus according to an embodiment of the present invention.
Figure 2 is a perspective view showing a detachable state of some components in the geotechnical structure model seismic test apparatus according to Figure 1;
Figure 3 is a perspective view showing a state in which some components are mounted to the geotechnical structure model seismic test apparatus according to Figure 1;
4 is a view showing a state for applying vibration to the geotechnical structure model seismic test apparatus according to FIG. 1;
Figure 5 is a cross-sectional view showing the structure of some components of the geotechnical structure model seismic test apparatus according to Figure 1;
6 is a cross-sectional view showing in detail the structure of some components of the geotechnical structure model seismic test apparatus according to FIG. 5;
7 is a perspective view showing a state in which some components are added to the geotechnical structure model seismic test apparatus according to FIG. 1;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Advantages and features of the present invention, and methods for achieving them, will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms, only the present embodiments make the disclosure of the present invention complete, and the common knowledge in the art to which the present invention belongs It is provided to fully inform the holder of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

The spatially relative terms "below", "beneath", "lower", "above", "upper", etc. It can be used to easily describe the correlation between elements or components and other elements or components. Spatially relative terms should be understood as encompassing different orientations of elements in use or operation in addition to the orientations shown in the figures. For example, when flipping elements shown in the figures, elements described as “below” or “beneath” other elements may be placed “above” the other elements. Thus, the exemplary term “below” may include directions of both below and above. Elements may also be oriented in other orientations, and thus spatially relative terms may be interpreted according to orientation.

Although first, second, etc. are used to describe various elements, components and/or sections, it is needless to say that these elements, components and/or sections are not limited by these terms. These terms are only used to distinguish one element, component or section from another element, component or section. Accordingly, it goes without saying that the first element, first element, or first section referred to below may also be a second element, second element, or second section within the spirit of the present invention.

Terminology used herein is for describing the embodiments and is not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. As used herein, "comprises" and/or "comprising" means that a stated component, step, operation, and/or element is present in the presence of one or more other components, steps, operations, and/or elements. or do not rule out additions.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used in a meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless explicitly specifically defined.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, the same or corresponding components regardless of reference numerals are given the same reference numerals, Description will be omitted.

1 is a perspective view showing a geotechnical structure model seismic test apparatus according to an embodiment of the present invention.

Referring to FIG. 1 , the geotechnical structure model seismic test apparatus may include a tow control receiver 110 and a vibration generator 200 . The tojo receptor 110 may include a layered structure 111 and a separable structure 115 .

Here, the laminated structure 111 may include an interlocking fixing module 130 . The interlocking fixing module 130 may include a fixing piece 131 and a fixing table 132 .

The tow control receiver 110 can accommodate therein a ground model 50 having a predetermined size. The stacked structure 111 of the toe control receptor 110 may be stacked with each other in a set height and area.

Figure 2 is a perspective view showing a detachable state of some components in the geotechnical structure model seismic test apparatus according to Figure 1; Figure 3 is a perspective view showing a state in which some components are mounted to the geotechnical structure model seismic test apparatus according to Figure 1;

Referring to FIGS. 2 and 3 , the tojo receptor 110 may include a separable structure 115 and an observation panel 120 . At least a part of the separable structure 115 of the tojo receptor 110 may be provided in a detachable form.

An observation panel 120 capable of observing the ground model 50 may be mounted in the partial area where the separable structure 115 is removed from the observation panel 120 of the tojo receptor 110.

Here, the observation panel 120 may be mounted in a region from which the separable structure 115 is removed. When the observation panel 120 is removed, the detachable structure 115 may be mounted again.

Meanwhile, the stacked structures 111 may move in a certain range based on the vibration while being connected to each other through the interlocking means 130.

The interlocking fixing module 130 of the laminated structure 111 is for fixing the mutual movement of the laminated structure 111 .

The fixing pieces 131 of the interlocking fixing module 130 may be spaced apart from each other to form a spaced apart space on each of the stacked structures 111 . A plurality of fixing pieces 131 may be disposed in the height direction of the stacked structures 111 .

The fixing table 132 of the interlocking fixing module 130 is bound between the fixing pieces 131 through the separation space, and can integrally fix each of the laminated structures 111 .

Here, the fixing piece 131 and the fixing table 132 may be coupled and fixed in various ways such as a forced fitting method and a fastening member fastening method. In addition, at least a part of the fixing piece 131 and the fixing table 132 are installed on the above-described separable structure 115 and the observation panel 120, so that the overall fixing force of the geotechnical structure model seismic test apparatus 100 is imparted. may make it so.

Figure 4 is a cross-sectional view showing the structure of some components of the geotechnical structure model seismic test apparatus according to Figure 1;

Referring to FIG. 4 , the vibration generator 200 can apply vibration to at least a part of up, down, left, and right sides while holding the toe control receptor 110. Here, it is also possible to have a guiding means for preventing separation of the toe bath receptor 110 provided at the circumference.

Figure 5 is a cross-sectional view showing the structure of a part of the geotechnical structure model seismic test apparatus according to Figure 1;

Referring to FIG. 5, a member E of a buffer material that is easy to flow is provided between the laminated structures 111 so that the laminated structures 111 are connected to each other and more fluid force is applied.

Here, the member E of the cushioning material may include rubber, an elastomer material, and the like. In this case, it is also possible to attach at least a portion of the members E of the cushioning material to each other of the laminated structures 111 . In addition, it is also possible to facilitate the aforementioned flow by applying mechanical elements such as rollers and ball bearings.

6 is a cross-sectional view showing in detail the structure of some components of the geotechnical structure model seismic test apparatus according to FIG. 5;

Referring to FIG. 6 , the member E of the cushioning material may include a triangular first member E1 and a second member E2 diagonally facing the first member E1. Here, a third member E3 positioned between the first member E1 and the second member E2 may be provided.

Here, the third member (E3) is formed to have a corrugated pipe structure between the first member (E1) and the second member (E2), so that it is possible to impart a predetermined flow force to the upper and lower sides.

7 is a perspective view showing a state in which some components are added to the geotechnical structure model seismic test apparatus according to FIG. 1;

Referring to FIG. 7 , the fixing piece 131 and the fixing table 132 described above may be more densely provided around the circumferential portion of the tojo receptor 110 . This is an example, and in addition to the fact that the fixing piece 131 and the fixing table 132 are installed vertically, it is also possible to install them in the left and right directions.

Meanwhile, in the seismic test method in the step of preparing the ground structure model soil tide receptor based on the above information, first, the ground structure model 50 may be prepared to accommodate the soil tide receptor 110 therein.

Next, in the seismic test performance step, vibration is applied to the ground model 50 and the toe-receptor 110 through the vibration generator 200, so that the seismic test of the toe-receptor 110 can be performed. The tojo receptor 110 may include a plurality of laminated structures 111 stacked on each other.

Although the embodiments of the present invention have been described with reference to the above and accompanying drawings, those skilled in the art to which the present invention pertains can implement the present invention in other specific forms without changing the technical spirit or essential features. You will understand that there is Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

50: ground model
110 Tojo receptor
111: layered structure
115: separable structure
120: observation panel
130: interlocking means
131: fixing piece
132: fixture

Claims (6)

Tojo receptor for accommodating the ground model therein;
A vibration generator for applying vibration to the ground model and the toe-receptor to conduct a seismic test of the toe-receptor;
The tojo receptor includes a plurality of laminated structures stacked on each other;
The layered structure,
While being connected to each other through interlocking means, they flow in a certain range with each other based on the vibration,
Further comprising an interlocking fixing module for fixing motion between the laminated structures,
The interlocking fixing module,
Fixing pieces provided apart from each other on each of the laminated structures to form spaced spaces from side to side and disposed in plurality in the height direction of the laminated structures;
A fixing base bound between the fixing pieces through the separation space and integrally fixing the stacked structures,
A member of a buffer material that is easy to flow is provided between the laminated structures, and the laminated structures are connected to each other to impart fluidity,
The member of the buffer material is provided with a triangular first member and a second member diagonally facing the first member,
A third member is provided between the first member and the second member,
The third member is formed to have a corrugated pipe structure between the first member and the second member, so that a predetermined flow force is applied to the upper and lower sides, the ground structure model seismic test apparatus. According to claim 1,
The geotechnical structure model seismic test apparatus, wherein the tow tank receptor includes a detachable structure in which at least a part of the area is detachable. According to claim 2,
The ground structure model seismic test apparatus, wherein an observation panel capable of observing the ground model is mounted in the partial region from which the separable structure is removed in the tow tank receptor. delete delete Preparing a toke receptor for accommodating the ground model therein;
Applying vibration to the ground model and the toestone receptor through a vibration generator, and performing a seismic test of the toestone receptor;
The tojo receptor includes a plurality of laminated structures stacked on each other;
The layered structure,
While being connected to each other through interlocking means, they flow in a certain range with each other based on the vibration,
Further comprising an interlocking fixing module for fixing motion between the laminated structures,
The interlocking fixing module,
Fixing pieces provided apart from each other on each of the laminated structures to form spaced spaces from side to side and disposed in plurality in the height direction of the laminated structures;
A fixing base bound between the fixing pieces through the separation space and integrally fixing the stacked structures,
A member of a buffer material that is easy to flow is provided between the laminated structures, and the laminated structures are connected to each other to impart fluidity,
The member of the buffer material is provided with a triangular first member and a second member diagonally facing the first member,
A third member is provided between the first member and the second member,
The third member is formed to have a corrugated pipe structure between the first member and the second member, so that a predetermined flow force is applied to the upper and lower sides, the ground structure model seismic test method.

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