Active fracture zone simulation test flexible model test chamber

Abstract

This invention discloses a flexible model test chamber for simulating active fracture zones, comprising: a specimen; a chamber body, the chamber body including an upper force-bearing plate, an upper front connecting frame, an upper rear connecting frame, a front end plate, a rear end plate, a front bottom plate, a rear bottom plate, a left connecting frame, a right connecting frame, a left front force-bearing plate, a left rear force-bearing plate, a right front force-bearing plate, and a right rear force-bearing plate; and a flexible support assembly, the flexible support assembly including a front support frame, a rear support frame, multiple sword-shaped connecting rods, and multiple sheath-shaped connecting rods. The flexible model test chamber for simulating active fracture zones according to embodiments of this invention has advantages such as avoiding restriction of specimen stress, good flexibility, strong applicability, and high accuracy.

Description

Technical Field

[0001] This invention relates to the field of geological engineering technology, and more specifically, to a flexible model test chamber for simulating active fault zones. Background Technology

[0002] Physical simulation experiments are an important method for studying the effects of disasters caused by activities.

[0003] In the active fracture zone simulation test, forces are applied to the specimen in different directions and positions to simulate scenarios such as slippage and retrograde. To facilitate specimen forming and transportation, the specimen is placed in a model test chamber.

[0004] In the model test chamber for simulating active fracture zones in related technologies, the force and movement of the specimen are easily restricted by the model test chamber, resulting in a single force direction, making it difficult to simulate complex force conditions. Moreover, the model test chamber has poor flexibility and is difficult to adjust according to test requirements. Summary of the Invention

[0005] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a flexible model test chamber for simulating active fracture zones, which has the advantages of avoiding restrictions on the stress on the specimen, good flexibility, wide applicability, and high accuracy.

[0006] To achieve the above objectives, an embodiment of the present invention provides a flexible model test chamber for simulating active fracture zones. The flexible model test chamber includes: a specimen, which is cast from test-proportioned materials; and a chamber body, the specimen of which is adapted to be cast and shaped within the chamber body. The length direction of the chamber body is oriented along the front-rear direction. The chamber body includes an upper load-bearing plate, an upper front connecting frame, an upper rear connecting frame, a front end plate, a rear end plate, a front bottom plate, a rear bottom plate, a left connecting frame, a right connecting frame, a left front load-bearing plate, a left rear load-bearing plate, a right front load-bearing plate, and a right rear load-bearing plate. The upper load-bearing plate is adapted to fit against the upper surface of the specimen. The upper front connecting frame and the upper rear load-bearing plate... The upper rear connecting frame is detachably connected to the upper surface of the upper force-bearing plate. The front end plate is adapted to fit against the front end face of the specimen, and the rear end plate is adapted to fit against the rear end face of the specimen. The front edge of the upper front connecting frame is detachably connected to the upper edge of the front end plate, and the rear edge of the upper rear connecting frame is detachably connected to the upper edge of the rear end plate. The front bottom plate and the rear bottom plate are adapted to fit against the lower surface of the specimen. The front edge of the front bottom plate is connected to the lower edge of the front end plate, and the rear edge of the rear bottom plate is connected to the lower edge of the rear end plate. The left front force-bearing plate and the left rear force-bearing plate are adapted to fit against the left side face of the specimen. The right front force-bearing plate... The force plate and the right rear force plate are adapted to fit against the right side of the sample. The left connecting frame is detachably connected to the left side of the left front force plate and the left rear force plate. The front edge of the left connecting frame is detachably connected to the left edge of the front end plate and the rear edge is detachably connected to the left edge of the rear end plate. The right connecting frame is detachably connected to the right side of the right front force plate and the right rear force plate. The front edge of the right connecting frame is detachably connected to the right edge of the front end plate and the rear edge is detachably connected to the right edge of the rear end plate. A flexible support assembly is included, comprising a front support frame, a rear support frame, multiple sword-shaped connecting rods, and multiple... A sheath-shaped connecting rod is provided. The front support frame is connected to the rear edge of the front base plate, and the rear support frame abuts against the front edge of the rear base plate. A plurality of sword-shaped connecting rods are rotatably mounted on the front support frame with their rotation axes oriented vertically. The plurality of sword-shaped connecting rods are spaced apart on the front support frame in the left-right direction and are parallel to each other. A plurality of sheath-shaped connecting rods are rotatably mounted on the rear support frame with their rotation axes oriented vertically. The plurality of sheath-shaped connecting rods are spaced apart on the rear support frame in the left-right direction and are parallel to each other. The plurality of sword-shaped connecting rods are slidably and detachably engaged within the plurality of sheath-shaped connecting rods in a one-to-one correspondence.

[0007] The flexible model test chamber for simulating active fracture zones according to embodiments of the present invention has advantages such as avoiding restriction of sample stress, good flexibility, strong applicability, and high accuracy.

[0008] In addition, the flexible model test chamber for simulating active fracture zones according to the above embodiments of the present invention may also have the following additional technical features:

[0009] According to an embodiment of the present invention, the flexible model test chamber for simulating active fracture zones is characterized in that it further includes a front partition and a rear partition. The upper load-bearing plate is provided with a first front slot, a second front slot, a first rear slot, and a second rear slot. The first front slot, the second front slot, the first rear slot, and the second rear slot are all oriented in the left-right direction and spaced apart in the front-back direction. The first front slot is located in front of the second front slot, and the first rear slot is located behind the second rear slot. The front partition is detachably fitted into one of the first front slot and the second front slot, and the rear partition is detachably fitted into one of the first rear slot and the second rear slot. When the front partition is fitted into the first front slot and the rear partition is fitted into the first rear slot, a pre-formed rock casting area is formed between the front partition and the front end plate. The rear partition and the rear end plate... A post-proto-rock casting area is formed between the two. When the front partition plate is fitted into the second front slot and the rear partition plate is fitted into the second rear slot, a front fracture influence zone casting area is formed between the front partition plate and the pre-proto-rock casting area. A rear fracture influence zone casting area is formed between the rear partition plate and the post-proto-rock casting area. A fracture fracture zone casting area is formed between the front fracture influence zone casting area and the rear fracture influence zone casting area. The sample includes a pre-proto-rock zone, a post-proto-rock zone, a front fracture influence zone, a rear fracture influence zone, and a fracture fracture zone. The pre-proto-rock zone is suitable for casting within the pre-proto-rock casting area. The post-proto-rock zone is suitable for casting within the post-proto-rock casting area. The front fracture influence zone is suitable for casting within the front fracture influence zone casting area. The rear fracture influence zone is suitable for casting within the rear fracture influence zone casting area. The fracture fracture zone is suitable for casting within the fracture fracture zone casting area.

[0010] According to one embodiment of the present invention, the upper front connecting frame is located in front of the first front slot, the upper rear connecting frame is located behind the first rear slot, the left front force plate is located in front of the first front slot in the front-rear direction, the left rear force plate is located behind the first rear slot in the front-rear direction, the right front force plate is located in front of the first front slot in the front-rear direction, and the right rear force plate is located behind the first rear slot in the front-rear direction.

[0011] According to one embodiment of the present invention, a support frame guide slope is formed at the connection between the upper surface and the rear surface of the front support frame, and a bottom plate guide slope is formed at the rear edge of the front bottom plate. Both the support frame guide slope and the bottom plate guide slope extend upward from front to back, and the support frame guide slope and the bottom plate guide slope are slidably abutting each other.

[0012] According to one embodiment of the present invention, each of the sheath-shaped connecting rods is provided with a guide groove oriented along the length direction of the sheath-shaped connecting rod, and each of the sword-shaped connecting rods is provided with a guide rib oriented along the length direction of the sword-shaped connecting rod, the guide rib being slidably and detachably engaged in the guide groove.

[0013] According to one embodiment of the present invention, the left connecting frame is provided with a left front weight reduction port and a left rear weight reduction port, the left front force plate covers the left front weight reduction port, the left rear force plate covers the left rear weight reduction port, the right connecting frame is provided with a right front weight reduction port and a right rear weight reduction port, the right front force plate covers the right front weight reduction port, and the right rear force plate covers the right rear weight reduction port.

[0014] According to one embodiment of the present invention, the upper front connecting frame is provided with an upper front weight reduction port, the upper rear connecting frame is provided with an upper rear weight reduction port, and the upper force plate covers the upper front weight reduction port and the upper rear weight reduction port.

[0015] According to one embodiment of the present invention, the edges of the upper front connecting frame, the upper rear connecting frame, the left connecting frame and the right connecting frame are provided with reinforced flanges.

[0016] According to one embodiment of the present invention, the left connecting frame and the right connecting frame are provided with reinforcing ribs.

[0017] According to one embodiment of the present invention, the upper front connecting frame is detachably connected to the front end plate by threaded fasteners, the upper rear connecting frame is detachably connected to the rear end plate by threaded fasteners, the left connecting frame is detachably connected to the left front force plate, the left rear force plate, the front end plate and the rear end plate by threaded fasteners, and the right connecting frame is detachably connected to the right front force plate, the right rear force plate, the front end plate and the rear end plate by threaded fasteners.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is an exploded view of the flexible model test chamber for simulating active fracture zones according to an embodiment of the present invention.

[0021] Figure 2This is a schematic diagram of the structure of a flexible model test chamber for simulating active fracture zones according to an embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure of a flexible model test chamber for simulating active fracture zones according to an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the flexible support component of the flexible model test chamber for simulating active fracture zones according to an embodiment of the present invention.

[0024] Figure 5 This is an exploded view of the flexible support assembly of the flexible model test chamber for simulating active fracture zones according to an embodiment of the present invention.

[0025] Figure reference numerals: Flexible model test chamber for active fault zone simulation test; Specimen 10; Front protolith zone 11; Rear protolith zone 12; Front fault influence zone 13; Rear fault influence zone 14; Fault fracture zone 15; Upper load-bearing plate 21; First front slot 211; Second front slot 212; First rear slot 213; Second rear slot 214; Upper front connecting frame 221; Upper rear connecting frame 222; Front end plate 231; Rear end plate 232; Front Base plate 241, rear base plate 242, left connecting frame 251, right connecting frame 252, left front load-bearing plate 261, left rear load-bearing plate 262, right front load-bearing plate 263, right rear load-bearing plate 264, flexible support assembly 30, front support frame 31, support frame guide ramp 311, rear support frame 32, sword-shaped connecting rod 33, guide rib 331, sheath-shaped connecting rod 34, guide groove 341, hinge shaft 35, front partition 41, rear partition 42. Detailed Implementation

[0026] This application is based on the inventor's discoveries and understanding of the following facts and problems:

[0027] In the model test chamber for simulating active fracture zones in related technologies, the force and movement of the specimen are easily restricted by the model test chamber, resulting in a single force direction, making it difficult to simulate complex force conditions, and it is also difficult to make flexible adjustments according to test requirements.

[0028] Specifically, the model test chamber for simulating active fracture zones in related technologies is an integrated rigid structure. On the one hand, it restricts the force and movement of the specimen, resulting in a single force direction for the specimen, making it difficult to meet the test requirements for complex stress conditions. On the other hand, the integrated structure makes it difficult to make local adjustments according to test requirements, resulting in poor flexibility.

[0029] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] The following description, with reference to the accompanying drawings, describes a flexible model test chamber 1 for simulating active fracture zones according to an embodiment of the present invention.

[0033] like Figures 1-5 As shown, the flexible model test chamber 1 for simulating active fracture zones according to an embodiment of the present invention includes a sample 10, a chamber body, and a flexible support assembly 30.

[0034] Sample 10 was cast from the test mix material. It should be understood that the test mix material is a material formulated with simulated rock components and a curing agent for testing, and those skilled in the art can adjust its composition and proportions according to actual needs.

[0035] The sample 10 is suitable for casting in the box, the length of which is oriented along the front-back direction (up-down, left-right and front-back directions are shown by the arrows in the figure).

[0036] The housing includes an upper load-bearing plate 21, an upper front connecting frame 221, an upper rear connecting frame 222, a front end plate 231, a rear end plate 232, a front bottom plate 241, a rear bottom plate 242, a left connecting frame 251, a right connecting frame 252, a left front load-bearing plate 261, a left rear load-bearing plate 262, a right front load-bearing plate 263, and a right rear load-bearing plate 264.

[0037] The upper force-bearing plate 21 is adapted to fit against the upper surface of the specimen 10. The upper front connecting frame 221 and the upper rear connecting frame 222 are detachably connected to the upper surface of the upper force-bearing plate 21. The front end plate 231 is adapted to fit against the front end face of the specimen 10, and the rear end plate 232 is adapted to fit against the rear end face of the specimen 10. The front edge of the upper front connecting frame 221 is detachably connected to the upper edge of the front end plate 231, and the rear edge of the upper rear connecting frame 222 is detachably connected to the upper edge of the rear end plate 232. The front bottom plate 241 and the rear bottom plate 242 are adapted to fit against the lower surface of the specimen 10. The front edge of the front bottom plate 241 is connected to the lower edge of the front end plate 231, and the rear edge of the rear bottom plate 242 is connected to the lower edge of the rear end plate 232. (Left front...) The force-bearing plate 261 and the left rear force-bearing plate 262 are adapted to fit against the left side of the specimen 10, the right front force-bearing plate 263 and the right rear force-bearing plate 264 are adapted to fit against the right side of the specimen 10, the left connecting frame 251 is detachably connected to the left side of the left front force-bearing plate 261 and the left rear force-bearing plate 262, the front edge of the left connecting frame 251 is detachably connected to the left edge of the front end plate 231 and the rear edge is detachably connected to the left edge of the rear end plate 232, the right connecting frame 252 is detachably connected to the right side of the right front force-bearing plate 263 and the right rear force-bearing plate 264, the front edge of the right connecting frame 252 is detachably connected to the right edge of the front end plate 231 and the rear edge is detachably connected to the right edge of the rear end plate 232.

[0038] The flexible support assembly 30 includes a front support frame 31, a rear support frame 32, multiple sword-shaped connecting rods 33, and multiple sheath-shaped connecting rods 34. The front support frame 31 is connected to the rear edge of the front base plate 241, and the rear support frame 32 abuts against the front edge of the rear base plate 242. The multiple sword-shaped connecting rods 33 are rotatably mounted on the front support frame 31 with their rotation axes oriented vertically. The multiple sword-shaped connecting rods 33 are spaced apart on the front support frame 31 in the left-right direction and are parallel to each other. The multiple sheath-shaped connecting rods 34 are rotatably mounted on the rear support frame 32 with their rotation axes oriented vertically. The multiple sheath-shaped connecting rods 34 are spaced apart on the rear support frame 32 in the left-right direction and are parallel to each other. The multiple sword-shaped connecting rods 33 are slidably and detachably engaged within the multiple sheath-shaped connecting rods 34. It should be understood that "sword-shaped" and "sheath-shaped" are only for the convenience of describing the engagement method and are not restrictions on their shape. Specifically, the sword-shaped connecting rod 33 can be generally long and flat with a rounded end, and the sheath-shaped connecting rod 34 can be generally long and flat with a slot that fits the sword-shaped connecting rod 33.

[0039] Specifically, the relative sliding and rotation of the sword-shaped link 33 and the sheath-shaped link 34 can provide support in the direction of gravity without restricting the force in other directions.

[0040] For example, during the reverse impact test, the specimen 10 is subjected to force in the front-to-back direction. The sword-shaped connecting rod 33 and the sheath-shaped connecting rod 34 can slide relative to each other to avoid restricting the force on the specimen 10, so that the loading force can be fully transferred to the specimen.

[0041] During the slip test, the specimen 10 is subjected to force in the left and right directions. The sword-shaped connecting rod 33 and the sheath-shaped connecting rod 34 can rotate relative to the front support frame 31 and the rear support frame 32. At the same time, the sword-shaped connecting rod 33 and the sheath-shaped connecting rod 34 can slide in extension and retraction to avoid restricting the force on the specimen 10 and ensure that the loading force is fully transferred to the specimen.

[0042] First, assemble the box body and flexible support assembly 30, and then pour the sample 10 into the box body. After the sample 10 has cured, remove the upper front connecting frame 221, upper rear connecting frame 222, left connecting frame 251, and right connecting frame 252. Begin the test, and apply force to the sample 10 according to the test requirements.

[0043] The flexible model test chamber 1 for simulating active fracture zones according to an embodiment of the present invention, by comprising an upper force plate 21, an upper front connecting frame 221, an upper rear connecting frame 222, a front end plate 231, a rear end plate 232, a front bottom plate 241, a rear bottom plate 242, a left connecting frame 251, a right connecting frame 252, a left front force plate 261, a left rear force plate 262, a right front force plate 263, and a right rear force plate 264, allows the chamber to adopt a modular design compared to the integrally formed model test chambers in related technologies. This facilitates local adjustments to the chamber according to test requirements, improving the flexibility and applicability of the test.

[0044] Furthermore, by detachably connecting the front edge of the upper front connecting frame 221 to the upper edge of the front end plate 231, detachably connecting the rear edge of the upper rear connecting frame 222 to the upper edge of the rear end plate 232, detachably connecting the left connecting frame 251 to the left side of the left front load-bearing plate 261 and the left rear load-bearing plate 262, detachably connecting the front edge of the left connecting frame 251 to the left side of the front end plate 231 and detachably connecting the rear edge to the left side of the rear end plate 232, detachably connecting the right connecting frame 252 to the right side of the right front load-bearing plate 263 and the right rear load-bearing plate 264, detachably connecting the front edge of the right connecting frame 252 to the right side of the front end plate 231 and detachably connecting the rear edge to the rear end plate 262, the left connecting frame 251 is detachably connected to the left side of the left front load-bearing plate 263 and the right rear load-bearing plate 264, and the right connecting frame 252 is detachably connected to the right side of the front end plate 231 and the rear edge to the rear end plate 262, the left connecting frame 251 is detachably connected to the left side of the left front load-bearing plate 263 and the right rear load-bearing plate 264, the left connecting frame 251 is detachably connected to the right side of the front end plate 231 and the right rear load-bearing plate 262 ... left side of the left front load-bearing plate 263 and the right rear load-bearing plate 2 The right side of 32 is detachably connected, allowing the upper front connecting frame 221, upper rear connecting frame 222, left connecting frame 251, and right connecting frame 252 to be detachable. After the sample 10 has cured, the upper front connecting frame 221, upper rear connecting frame 222, left connecting frame 251, and right connecting frame 252 can be removed, and the sample 10 can be subjected to force solely by the upper force plate 21, left front force plate 261, left rear force plate 262, right front force plate 263, and right rear force plate 264. This eliminates the restriction of the connecting frames on the direction and position of the force on the sample 10, avoids the problem of the sample 10 being subjected to a single force direction, makes the test results closer to the real situation, and improves the accuracy of the test results.

[0045] Furthermore, by setting up the flexible support component 30, it can not only support the specimen 10, but also support the specimen 10 in the direction of gravity, preventing damage to the middle of the specimen due to its own weight and preventing the influence of gravity on the test results during the test. Moreover, by rotatably setting the sword-shaped connecting rod 33 and the sheath-shaped connecting rod 34, the sword-shaped connecting rod 33 can be slidably and disengagedly engaged in multiple sheath-shaped connecting rods 34. This can avoid the flexible support component 30 restricting the force on the specimen 10, ensuring that the loading force is fully applied to the specimen 10 and improving the accuracy of the test data.

[0046] Therefore, the flexible model test chamber 1 for simulating active fracture zones according to embodiments of the present invention has advantages such as avoiding restriction of sample stress, good flexibility, strong applicability, and high accuracy.

[0047] The following description, with reference to the accompanying drawings, describes a flexible model test chamber 1 for simulating active fracture zones according to a specific embodiment of the present invention.

[0048] In some specific embodiments of the present invention, such as Figures 1-5 As shown, the flexible model test chamber 1 for simulating active fracture zones according to an embodiment of the present invention includes a sample 10, a chamber body, and a flexible support assembly 30.

[0049] Advantageously, such as Figures 1-3 As shown, the flexible model test chamber 1 for simulating active fracture zones also includes a front partition 41 and a rear partition 42. The upper force plate 21 is provided with a first front slot 211, a second front slot 212, a first rear slot 213 and a second rear slot 214. The first front slot 211, the second front slot 212, the first rear slot 213 and the second rear slot 214 are all oriented in the left-right direction and are spaced apart in the front-back direction. The first front slot 211 is located in front of the second front slot 212 and the first rear slot 213 is located behind the second rear slot 214.

[0050] The front partition 41 is detachably fitted into one of the first front slot 211 and the second front slot 212, and the rear partition 42 is detachably fitted into one of the first rear slot 213 and the second rear slot 214.

[0051] When the front partition 41 is fitted into the first front slot 211 and the rear partition 42 is fitted into the first rear slot 213, a front original rock casting area is formed between the front partition 41 and the front end plate 231, and a rear original rock casting area is formed between the rear partition 42 and the rear end plate 232.

[0052] When the front partition 41 is fitted into the second front slot 212 and the rear partition 42 is fitted into the second rear slot 214, a front fracture influence zone pouring area is formed between the front partition 41 and the front original rock pouring area, a rear fracture influence zone pouring area is formed between the rear partition 42 and the rear original rock pouring area, and a fracture fragmentation zone pouring area is formed between the front fracture influence zone pouring area and the rear fracture influence zone pouring area.

[0053] Sample 10 includes a foreground protolith zone 11, a rear protolith zone 12, a foreground fault influence zone 13, a rear fault influence zone 14, and a fractured zone 15. The foreground protolith zone 11 is suitable for casting within the foreground protolith casting area, the rear protolith zone 12 is suitable for casting within the rear protolith casting area, the foreground fault influence zone 13 is suitable for casting within the foreground fault influence zone casting area, the rear fault influence zone 14 is suitable for casting within the rear fault influence zone casting area, and the fractured zone 15 is suitable for casting within the fractured zone casting area.

[0054] Specifically, the structural strength of the original rock zone is greater than that of the fault-affected zone, and the structural strength of the fault-affected zone is greater than that of the fault fracture zone, in order to simulate a more realistic geological situation.

[0055] After the box is assembled, the front partition 41 is first inserted into the first front slot 211, and the rear partition 42 is inserted into the first rear slot 213 to form the front original rock zone casting area and the rear original rock zone casting area. The front original rock zone 11 is cast in the front original rock zone casting area, and the rear original rock zone 12 is cast in the rear original rock zone casting area.

[0056] After the front original rock zone 11 and the rear original rock zone 12 have solidified, the front partition 41 and the rear partition 42 are removed. The front partition 41 is inserted into the second front slot 212, and the rear partition 42 is inserted into the second rear slot 214. The front partition 41 and the front original rock zone 11 form the front fracture influence zone pouring area, and the rear partition 42 and the rear original rock zone 12 form the rear fracture influence zone pouring area. The front fracture influence zone 13 is poured in the front fracture influence zone pouring area, and the rear fracture influence zone 14 is poured in the rear fracture influence zone pouring area.

[0057] After the front fracture influence zone 13 and the rear fracture influence zone 14 have solidified, the front partition 41 and the rear partition 42 are removed, and a fracture fracture zone casting area is formed between the front fracture influence zone 13 and the rear fracture influence zone 14. The fracture fracture zone 15 is then cast in the fracture fracture zone casting area.

[0058] Specifically, such as Figures 1-3 As shown, the upper front connecting frame 221 is located in front of the first front slot 211, and the upper rear connecting frame 222 is located behind the first rear slot 213. This avoids interference between the upper front connecting frame 221 and the upper rear connecting frame 222 and the front partition 41 and the rear partition 42, and facilitates the disassembly and assembly of the front partition 41 and the rear partition 42.

[0059] More specifically, such as Figures 1-3 As shown, the left front load-bearing plate 261 is located in front of the first front slot 211 in the front-rear direction, the left rear load-bearing plate 262 is located behind the first rear slot 213 in the front-rear direction, the right front load-bearing plate 263 is located in front of the first front slot 211 in the front-rear direction, and the right rear load-bearing plate 264 is located behind the first rear slot 213 in the front-rear direction. This allows the left front load-bearing plate 261 and the right front load-bearing plate 263 to be positioned on both sides of the front original rock zone 11, and the left rear load-bearing plate 262 and the right rear load-bearing plate 264 to be positioned on both sides of the rear original rock zone 12. After the left connecting frame 251 and the right connecting frame 252 are removed, the force on the front fracture influence zone 13, the rear fracture influence zone 14, and the fracture fragmentation zone 15 will not be restricted. In fact, it can also assist the front original rock zone 11 and the rear original rock zone 12 in bearing the force, so that the loading force can be fully applied to the front fracture influence zone 13, the rear fracture influence zone 14, and the fracture fragmentation zone 15.

[0060] Figure 4 and Figure 5 A flexible model test chamber 1 for simulating active fracture zones according to some examples of the present invention is shown. For example... Figure 4 and Figure 5 As shown, a support frame guide slope 311 is formed at the connection between the upper and rear surfaces of the front support frame 31, and a base plate guide slope is formed at the rear edge of the front base plate 241. Both the support frame guide slope 311 and the base plate guide slope extend upwards from front to back, and the support frame guide slope 311 and the base plate guide slope slidably abut against each other. In this way, during the test, after the sample 10 is deformed by the applied force, the guiding effect of the support frame guide slope 311 and the base plate guide slope can be used to guide the flexible support assembly 30 and the front base plate 241 to slide obliquely relative to each other, avoiding the plane contact between the two which restricts the deformation and force of the sample 10, and further improving the accuracy of the force on the sample 10.

[0061] Advantageously, such as Figure 4 As shown, each sheath-shaped link 34 is provided with a guide groove 341 oriented along the length direction of the sheath-shaped link 34, and each sword-shaped link 33 is provided with a guide rib 331 oriented along the length direction of the sword-shaped link 33. The guide rib 331 is slidably and detachably engaged in the guide groove 341. In this way, the guide rib 331 and the guide groove 341 can be used to position and guide the telescopic sliding of the sword-shaped link 33 and the sheath-shaped link 34, improving the stability of their sliding and making their sliding smoother.

[0062] Specifically, such as Figure 4 and Figure 5 As shown, the sword-shaped connecting rod 33 is rotatably mounted on the front support frame 31 via a hinge pin 35, and the sheath-shaped connecting rod 34 is rotatably mounted on the rear support frame 32 via a hinge pin 35. This facilitates the rotatable mounting of the sword-shaped connecting rod 33 and the sheath-shaped connecting rod 34.

[0063] Figures 1-3 A flexible model test chamber 1 for simulating active fracture zones according to some examples of the present invention is shown. For example... Figures 1-3 As shown, the left connecting frame 251 has a left front weight reduction port and a left rear weight reduction port. The left front force plate 261 covers the left front weight reduction port, and the left rear force plate 262 covers the left rear weight reduction port. The right connecting frame 252 has a right front weight reduction port and a right rear weight reduction port. The right front force plate 263 covers the right front weight reduction port, and the right rear force plate 264 covers the right rear weight reduction port. This reduces the weight of the left connecting frame 251 and the right connecting frame 252, making it easier to assemble and disassemble them. This makes the operation of the flexible model test chamber 1 for simulating the active fracture zone more convenient. Moreover, the force plates covering the weight reduction ports can avoid affecting the casting of the sample 10.

[0064] Specifically, such as Figure 1 and Figure 2 As shown, the upper front connecting frame 221 has an upper front weight reduction port, and the upper rear connecting frame 222 has an upper rear weight reduction port. The upper force plate 21 covers the upper front weight reduction port and the upper rear weight reduction port. This reduces the weight of the upper front connecting frame 221 and the upper rear connecting frame 222, making it easier to assemble and disassemble the upper front connecting frame 221 and the upper rear connecting frame 222. This makes the operation of the flexible model test chamber 1 for simulating the active fracture zone more convenient. Moreover, the force plate covering the weight reduction port can avoid affecting the casting of the sample 10.

[0065] Advantageously, such as Figures 1-3 As shown, the edges of the upper front connecting frame 221, upper rear connecting frame 222, left connecting frame 251, and right connecting frame 252 are provided with reinforcing flanges. This can improve the structural strength of the connecting frames, reduce the plate thickness of the connecting frames while ensuring structural strength, thereby reducing the weight of the connecting frames and further facilitating the assembly and disassembly of the flexible model test chamber 1 for simulating active fracture zones.

[0066] Furthermore, the left connecting frame 251 and the right connecting frame 252 are provided with reinforcing ribs. This can improve the structural strength of the connecting frames, reduce the thickness of the connecting frame plates while ensuring structural strength, thereby reducing the weight of the connecting frames and further facilitating the assembly and disassembly of the flexible model test chamber 1 for simulating active fracture zones.

[0067] Optionally, the upper front connecting frame 221 is detachably connected to the front end plate 231 via threaded fasteners; the upper rear connecting frame 222 is detachably connected to the rear end plate 232 via threaded fasteners; the left connecting frame 251 is detachably connected to the left front load-bearing plate 261, the left rear load-bearing plate 262, the front end plate 231, and the rear end plate 232 via threaded fasteners; and the right connecting frame 252 is detachably connected to the right front load-bearing plate 263, the right rear load-bearing plate 264, the front end plate 231, and the rear end plate 232 via threaded fasteners. The threaded fastener connection facilitates assembly and disassembly while ensuring connection strength.

[0068] Therefore, the flexible model test chamber 1 for simulating active fault zones according to embodiments of the present invention improves upon the shortcomings of model test chambers in related technologies through modularization, lightweighting, and flexible support, thereby enhancing the accuracy and operability of experiments and providing a more effective tool for the study of the disaster effects of active fault zones.

[0069] Other components and operations of the flexible model test chamber 1 for simulating active fracture zones according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0071] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A flexible model test chamber for simulating active fracture zones, characterized in that, include: The specimen is cast from the test mix material; A box-shaped structure is provided, in which the specimen is adapted to be cast and formed. The length of the box-shaped structure is oriented along the front-to-back direction. The box-shaped structure includes an upper load-bearing plate, an upper front connecting frame, an upper rear connecting frame, a front end plate, a rear end plate, a front bottom plate, a rear bottom plate, a left connecting frame, a right connecting frame, a left front load-bearing plate, a left rear load-bearing plate, a right front load-bearing plate, and a right rear load-bearing plate. The upper load-bearing plate is adapted to fit against the upper surface of the specimen. The upper front connecting frame and the upper rear connecting frame are detachably connected to the upper surface of the upper load-bearing plate. The front end plate is adapted to fit against the front end face of the specimen. The rear end plate is adapted to fit against the rear end face of the specimen. The front edge of the upper front connecting frame is detachably connected to the upper edge of the front end plate. The rear edge of the upper rear connecting frame is detachably connected to the upper edge of the rear end plate. The front bottom plate and the rear bottom plate are adapted to fit against the upper front end face of the specimen. The front edge of the front base plate is connected to the lower edge of the front end plate, and the rear edge of the rear base plate is connected to the lower edge of the rear end plate. The left front force plate and the left rear force plate are adapted to be attached to the left side of the sample, and the right front force plate and the right rear force plate are adapted to be attached to the right side of the sample. The left connecting frame is detachably connected to the left side of the left front force plate and the left rear force plate. The front edge of the left connecting frame is detachably connected to the left side of the front end plate and the rear edge is detachably connected to the left side of the rear end plate. The right connecting frame is detachably connected to the right side of the right front force plate and the right rear force plate. The front edge of the right connecting frame is detachably connected to the right side of the front end plate and the rear edge is detachably connected to the right side of the rear end plate. A flexible support assembly includes a front support frame, a rear support frame, multiple sword-shaped connecting rods, and multiple sheath-shaped connecting rods. The front support frame is connected to the rear edge of the front base plate, and the rear support frame abuts against the front edge of the rear base plate. The multiple sword-shaped connecting rods are rotatably mounted on the front support frame with their rotation axes oriented vertically. The multiple sword-shaped connecting rods are spaced apart on the front support frame in the left-right direction and are parallel to each other. The multiple sheath-shaped connecting rods are rotatably mounted on the rear support frame with their rotation axes oriented vertically. The multiple sheath-shaped connecting rods are spaced apart on the rear support frame in the left-right direction and are parallel to each other. The multiple sword-shaped connecting rods are slidably and detachably engaged within the multiple sheath-shaped connecting rods in a one-to-one correspondence.

2. The flexible model test chamber for simulating active fracture zones according to claim 1, characterized in that, It also includes a front partition and a rear partition. The upper load-bearing plate is provided with a first front slot, a second front slot, a first rear slot, and a second rear slot. The first front slot, the second front slot, the first rear slot, and the second rear slot are all oriented in the left-right direction and spaced apart in the front-back direction. The first front slot is located in front of the second front slot, and the first rear slot is located behind the second rear slot. The front partition can be detachably fitted into one of the first front slot and the second front slot, and the rear partition can be detachably fitted into one of the first rear slot and the second rear slot. When the front partition is fitted into the first front slot and the rear partition is fitted into the first rear slot, a pre-cast rock area is formed between the front partition and the front end plate, and a post-cast rock area is formed between the rear partition and the rear end plate. When the second front slot and the rear partition plate are fitted into the second rear slot, a front fracture influence zone casting area is formed between the front partition plate and the front original rock casting area, a rear fracture influence zone casting area is formed between the rear partition plate and the rear original rock casting area, and a fracture fragmentation zone casting area is formed between the front fracture influence zone casting area and the rear fracture influence zone casting area. The sample includes a front original rock zone, a rear original rock zone, a front fracture influence zone, a rear fracture influence zone, and a fracture fragmentation zone. The front original rock zone is suitable for casting within the front original rock casting area, the rear original rock zone is suitable for casting within the rear original rock casting area, the front fracture influence zone is suitable for casting within the front fracture influence zone casting area, the rear fracture influence zone is suitable for casting within the rear fracture influence zone casting area, and the fracture fragmentation zone is suitable for casting within the fracture fragmentation zone casting area.

3. The flexible model test chamber for simulating active fracture zones according to claim 2, characterized in that, The upper front connecting frame is located in front of the first front slot, the upper rear connecting frame is located behind the first rear slot, the left front force plate is located in front of the first front slot in the front-rear direction, the left rear force plate is located behind the first rear slot in the front-rear direction, the right front force plate is located in front of the first front slot in the front-rear direction, and the right rear force plate is located behind the first rear slot in the front-rear direction.

4. The flexible model test chamber for simulating active fracture zones according to claim 1, characterized in that, The upper and rear surfaces of the front support frame form a support frame guide slope at the connection point, and the rear edge of the front base plate forms a base plate guide slope. Both the support frame guide slope and the base plate guide slope extend upward from front to back, and the support frame guide slope and the base plate guide slope can slide against each other.

5. The flexible model test chamber for simulating active fracture zones according to claim 1, characterized in that, Each of the sheath-shaped links is provided with a guide groove oriented along the length of the sheath-shaped link, and each of the sword-shaped links is provided with a guide rib oriented along the length of the sword-shaped link. The guide rib is slidably and detachably fitted into the guide groove.

6. The flexible model test chamber for simulating active fracture zones according to claim 1, characterized in that, The left connecting frame is provided with a left front weight reduction port and a left rear weight reduction port. The left front force plate covers the left front weight reduction port, and the left rear force plate covers the left rear weight reduction port. The right connecting frame is provided with a right front weight reduction port and a right rear weight reduction port. The right front force plate covers the right front weight reduction port, and the right rear force plate covers the right rear weight reduction port.

7. The flexible model test chamber for simulating active fracture zones according to claim 1, characterized in that, The upper front connecting frame is provided with an upper front weight reduction port, the upper rear connecting frame is provided with an upper rear weight reduction port, and the upper force plate covers the upper front weight reduction port and the upper rear weight reduction port.

8. The flexible model test chamber for simulating active fracture zones according to claim 1, characterized in that, The edges of the upper front connecting frame, the upper rear connecting frame, the left connecting frame, and the right connecting frame are provided with reinforced flanges.

9. The flexible model test chamber for simulating active fracture zones according to claim 1, characterized in that, The left connecting frame and the right connecting frame are provided with reinforcing ribs.

10. The flexible model test chamber for simulating active fracture zones according to claim 1, characterized in that, The upper front connecting frame is detachably connected to the front end plate via threaded fasteners, the upper rear connecting frame is detachably connected to the rear end plate via threaded fasteners, the left connecting frame is detachably connected to the left front force plate, the left rear force plate, the front end plate, and the rear end plate via threaded fasteners, and the right connecting frame is detachably connected to the right front force plate, the right rear force plate, the front end plate, and the rear end plate via threaded fasteners.

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