Composite lining joint surface test simulation method

Abstract

The invention relates to the field of underground engineering design, in particular to a composite lining joint surface test simulation method which comprises an outer lining model, an inner lining model and a spring structure convenient to disassemble. The spring structure convenient to disassemble comprises a cushion layer fixing shaft, the lower end of the cushion layer fixing shaft is fixedly connected with a rotary mounting sleeve through a bolt, the lower end of the rotary mounting sleeve is rotationally sleeved with a tangential mounting shaft, a tangential sleeve rod is slidably sleeved with the tangential mounting shaft, a telescopic rod is sleeved with the tangential sleeve rod, and the tail end of the telescopic rod is fixedly connected with a mounting clamping frame. The device has the beneficial effects that the stability of the inner lining and the outer lining is improved by arranging the guide rods, tangential deformation and influence on the stress test precision between lining plates are avoided, and meanwhile, the force transfer relationship between the inner lining and the outer lining can be simulated by adjusting the spring rigidity through the conveniently-disassembled spring structure when the composite lining joint surface is treated in different modes; meanwhile, the spring structure convenient to disassemble is arranged, so that the spring structure can be disassembled when shear stress does not need to be detected, and the inner lining plate and the outer lining plate are not influenced by tangential elasticity.

Description

Technical Field

[0001] The invention relates to the field of building design, in particular to a composite lining joint surface test simulation method. Background Art

[0002] Composite lining usually refers to a double-layer tunnel support method formed by combining primary support and secondary lining. There are usually many different surface treatment methods between the two layers of lining, such as direct bonding, laying waterproof layer, and inserting reinforcement connection. At present, the test model for this kind of lining mainly considers the contact friction and extrusion slip problems of the double-layer lining surface, and it is difficult to simulate multiple different surface treatment methods between the double-layer lining at the same time.

[0003] In the prior art, the mechanical analysis model for elastic simulation by setting a double-layer homogeneous elastic ring is only a simple combined spring model. The combined spring is a simple combination of three groups of springs, which has insufficient adaptability and experimental accuracy. It may have a certain eccentricity during use, resulting in low test accuracy for the deformation variable, and due to the unstable structure, it is easy to cause large technical errors. Therefore, the present invention proposes a composite lining joint surface test simulation method to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a composite lining joint surface test simulation method to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a composite lining joint surface test simulation method, comprising an outer lining model, an inner lining model, and an easily detachable spring structure; the outer lining model comprises an outer lining inner sleeve, the outer side of the outer lining inner sleeve is fixedly connected with an outer lining spring in a circular array, and the end of the outer lining spring is fixedly connected with an outer lining outer sleeve; the inner lining model comprises an inner lining outer sleeve, the inner side of the inner lining outer sleeve is fixedly connected with an inner lining spring in a circular array, and the end of the inner lining spring is fixedly connected with the inner lining inner sleeve; the easily detachable spring structure comprises a cushion fixing shaft, the lower end of the cushion fixing shaft is fixedly connected with a rotating mounting sleeve by bolts, the lower end of the rotating mounting sleeve is provided with a tangential mounting shaft, the inner sliding sleeve of the tangential mounting shaft is provided with a tangential sleeve rod, the inner sleeve of the tangential sleeve rod is provided with a telescopic rod, and the end of the telescopic rod is fixedly connected with a mounting clamping frame.

[0006] Preferably, a plurality of outer lining guide rods are fixedly connected to the outside of the outer lining inner sleeve in a circumferential array, and an outer lining outer sleeve is disposed outside the outer lining guide rods.

[0007] Preferably, a plurality of lining guide rods are fixedly connected to the inner side of the lining outer sleeve in a circumferential array, and the lining guide rod outer sleeve is provided with a lining inner sleeve.

[0008] Preferably, the outer lining inner sleeve and the inner lining outer sleeve are respectively fixedly connected with a plurality of fixed connection frames on opposite sides, the outer end rotating shafts of the fixed connection frames are connected with rotating shaft clamping frames, and the rotating shaft clamping frames are correspondingly clamped with installation clamping frames.

[0009] Preferably, a tangential bracket is fixedly connected to the outer side of the tangential sleeve rod, a tangential telescopic spring is fixedly connected to the outer end surface of the tangential telescopic spring, and a mounting clamping frame is fixedly connected to the end of the tangential telescopic spring.

[0010] Preferably, fixed mounting plates are fixedly connected to the outer sides of the cushion layer fixed shaft at both ends, a rotatable mounting sleeve is fastenedly connected to the fixed mounting plate by bolts, and mounting support plates are fixedly connected to the upper end faces of the rotatable mounting sleeve at both ends.

[0011] Preferably, a snap-on rotating sleeve is fixedly connected to the lower end of the rotating mounting sleeve, and the snap-on rotating sleeve is rotatably mounted on the outside of the tangential mounting shaft.

[0012] Preferably, a cushion sleeve rod is provided in the sliding sleeve of the cushion fixed shaft, cushion support plates are fixedly connected on both sides of the cushion sleeve rod, and a cushion spring is fixedly connected on the outer side of the cushion support plate, wherein the ends of the cushion springs at both ends of the cushion sleeve rod are respectively fixedly connected to the inner side of the outer lining inner sleeve and the outer side of the inner lining outer sleeve.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention improves the stability of the inner and outer liners by arranging guide rods, avoids tangential deformation that affects the stress test accuracy between the lining plates, and at the same time, through the easy-to-disassemble spring structure, the spring stiffness can be adjusted to simulate the force transmission relationship between the inner and outer liners when the composite lining joint surface is treated in different ways. At the same time, the easy-to-disassemble spring structure is set up, so that it can be disassembled when there is no need to detect the shear stress, so that the inner and outer liners will not be affected by the tangential elasticity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a schematic diagram of some connection structures of the present invention;

[0017] Figure 3 It is a partial structural schematic diagram of the present invention;

[0018] Figure 4 It is a schematic diagram of an enlarged portion of the structure of the present invention.

[0019] In the figure: 1 outer lining outer sleeve, 2 outer lining spring, 3 outer lining guide rod, 4 outer lining inner sleeve, 5 inner lining outer sleeve, 6 inner lining spring, 7 inner lining inner sleeve, 8 inner lining guide rod, 9 cushion fixed shaft, 10 cushion sleeve rod, 11 cushion support plate, 12 cushion spring, 13 tangential installation shaft, 14 tangential sleeve rod, 15 tangential support plate, 16 telescopic rod, 17 tangential telescopic spring, 18 installation clamping frame, 19 rotating installation sleeve, 20 fixed installation plate, 21 installation support plate, 22 clamping rotating sleeve, 23 fixed connecting frame, 24 rotating shaft clamping frame. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0024] See also Figures 1 to 4 The present invention provides a technical solution: a composite lining joint surface test simulation method, including an outer lining model, an inner lining model, and a removable spring structure; the outer lining model includes an outer lining inner sleeve 4, the outer side of the outer lining inner sleeve 4 is fixedly connected with an outer lining spring 2 in a circumferential array, and the end of the outer lining spring 2 is fixedly connected with an outer lining outer sleeve 1; the inner lining model includes an inner lining outer sleeve 5, the inner side of the inner lining outer sleeve 5 is fixedly connected with an inner lining spring 6 in a circumferential array, and the end of the inner lining spring 6 is fixedly connected with an inner lining inner sleeve 7; the removable spring structure includes a cushion fixing shaft 9, the lower end of the cushion fixing shaft 9 is fixedly connected with a rotating installation sleeve 19 by bolts, the lower end of the rotating installation sleeve 19 is rotatingly sleeved with a tangential installation shaft 13, the tangential installation shaft 13 is slidingly sleeved with a tangential sleeve rod 14, the tangential sleeve rod 14 is sleeved with a telescopic rod 16, and the end of the telescopic rod 16 is fixedly connected with a mounting clamping frame 18, by establishing the inner lining model and the outer lining model, the deformation of the outer lining and the inner lining can be simulated, and the pressure and tangential force can be better recorded, and the simulation and recording can be better performed on the simulation software.

[0025] The outer side of the outer lining inner sleeve 4 is fixedly connected with a plurality of outer lining guide rods 3 in a circumferential array, the outer side of the outer lining guide rod 3 is provided with an outer lining outer sleeve 1, the inner side of the inner lining outer sleeve 5 is fixedly connected with a plurality of inner lining guide rods 8 in a circumferential array, the outer side of the inner lining guide rod 8 is provided with an inner lining inner sleeve 7, the outer lining inner sleeve 4 and the inner lining outer sleeve 5 are respectively fixedly connected with a plurality of fixed connecting frames 23 on the opposite sides, the outer end of the fixed connecting frame 23 is connected with a rotating shaft clamping frame 24, and the rotating shaft clamping frame 24 is correspondingly clamped with an installation clamping frame 18. When installing the easy-to-disassemble spring structure, first install the installation clamping frame 18 Inserted in the rotating shaft clamping frame 14, when the tangential installation shaft 13 is installed on the cushion fixing shaft 9, in order to record the tangential deformation, that is, when the outer liner inner sleeve 4 and the inner liner outer sleeve 5 move relative to each other, the tangential installation shaft 13 can be rotated, and the tangential change can be recorded by recording the deformation amount and deformation angle of the tangential telescopic spring 17, and when the opposite deformation occurs at the same time as the tangential change, the accurate tangential change can be obtained by performing vector calculation by recording the deformation amount of the cushion spring 12 and the deformation amount and deformation angle of the tangential telescopic spring 17.

[0026] The outer side of the tangential sleeve rod 14 is fixedly connected with a tangential bracket 15, the outer end surface of the tangential bracket 5 is fixedly connected with a tangential telescopic spring 17, the end of the tangential telescopic spring 17 is fixedly connected with a mounting clamping frame 18, the two ends of the outer side of the cushion fixed shaft 9 are fixedly connected with a fixed mounting plate 20, the fixed mounting plate 20 is bolted and connected with a rotating mounting sleeve 19, the two ends of the upper end surface of the rotating mounting sleeve 19 are fixedly connected with a mounting support plate 21, the lower end of the rotating mounting sleeve 19 is fixedly connected with a clamping rotating sleeve 22, the clamping rotating sleeve 22 is rotatably sleeved on the outer side of the tangential mounting shaft 13, and the inner sliding sleeve of the cushion fixed shaft 9 is provided with A cushion sleeve rod 10, with cushion support plates 11 fixedly connected on both sides of the cushion sleeve rod 10, and a cushion spring 12 fixedly connected on the outside of the cushion support plate 11, wherein the ends of the cushion springs 12 at both ends of the cushion sleeve rod 10 are respectively fixedly connected to the inside of the outer liner inner sleeve 4 and the outside of the inner liner outer sleeve 5. When installing the tangential mounting shaft 13, first align the mounting support plate 21 and the fixed mounting plate 20 at the upper end of the rotating mounting sleeve 19 and tighten them through bolts, so that the rotating mounting sleeve 19 can be fixedly installed on the cushion fixed shaft 9, and the tangential mounting shaft 13 can be rotatably connected on the rotating mounting sleeve 19.

[0027] In actual use, by establishing the inner lining model and the outer lining model, the deformation of the outer lining and the inner lining can be simulated, and the different material strengths of the inner lining and the outer lining can be simulated by adjusting the number and stiffness of the outer lining spring 2 and the inner lining spring 6. In addition, by setting the number of detachable spring structures and the stiffness of the cushion spring 12 and the tangential telescopic spring 17, the different bonding strengths between the inner lining and the outer lining joint surface can be simulated, thereby simulating different treatment methods of the inner lining and the outer lining joint surface in the actual structure. When installing the detachable spring structure, first insert the installation clamping frame 18 into the rotating shaft clamping frame 14. When the tangential installation shaft 13 is installed on the cushion fixed shaft 9, in order to record the tangential deformation, that is, when the outer lining inner sleeve 4 and the inner lining outer sleeve 5 move relative to each other, the tangential installation shaft 13 can be rotated. The tangential change can be recorded by recording the deformation amount and deformation angle of the tangential telescopic spring 17. When the tangential change occurs at the same time as the opposite deformation, the accurate tangential change can be obtained by performing vector calculation by recording the deformation amount of the cushion spring 12 and the deformation amount and deformation angle of the tangential telescopic spring 17. Among them, when installing the tangential installation shaft 13, first align the installation support plate 21 and the fixed installation plate 20 at the upper end of the rotating installation sleeve 19 and tighten them by bolts, so that the rotating installation sleeve 19 can be fixedly installed on the cushion fixed shaft 9, and the tangential installation shaft 13 can be rotatably connected on the rotating installation sleeve 19.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite lining joint surface test simulation method, characterized in that: include Outer lining model, inner lining model, and easily disassembled spring structure; The outer lining model comprises an outer lining inner sleeve (4), the outer side of the outer lining inner sleeve (4) is fixedly connected to an outer lining spring (2) in a circumferential array, and the end of the outer lining spring (2) is fixedly connected to an outer lining outer sleeve (1); The lining model comprises a lining outer sleeve (5), the inner side of the lining outer sleeve (5) is fixedly connected with lining springs (6) in a circumferential array, and the ends of the lining springs (6) are fixedly connected with lining inner sleeves (7); The easily dismantled spring structure comprises a cushion fixing shaft (9), the lower end of the cushion fixing shaft (9) is bolted and fixedly connected with a rotating mounting sleeve (19), the lower end of the rotating mounting sleeve (19) is rotatably sleeved with a tangential mounting shaft (13), a tangential sleeve rod (14) is slidably sleeved inside the tangential mounting shaft (13), a telescopic rod (16) is sleeved inside the tangential sleeve rod (14), and the end of the telescopic rod (16) is fixedly connected with a mounting clamping frame (18).

2. A composite lining joint surface test simulation method according to claim 1, characterized in that: A plurality of outer lining guide rods (3) are fixedly connected to the outer side of the outer lining inner sleeve (4) in a circumferential array, and an outer lining outer sleeve (1) is disposed on the outer side of the outer lining guide rods (3).

3. A composite lining joint surface test simulation method according to claim 1, characterized in that: A plurality of lining guide rods (8) are fixedly connected to the inner side of the lining outer sleeve (5) in a circumferential array, and a lining inner sleeve (7) is disposed outside the lining guide rods (8).

4. A composite lining joint surface test simulation method according to claim 1, characterized in that: A plurality of fixed connection frames (23) are fixedly connected to the opposite sides of the outer lining inner sleeve (4) and the inner lining outer sleeve (5), and the outer end of the fixed connection frame (23) is connected to a rotating shaft clamping frame (24) through a rotating shaft, and the rotating shaft clamping frame (24) is correspondingly clamped to a mounting clamping frame (18).

5. The composite lining joint surface test simulation method according to claim 1 is characterized in that: The outer side of the tangential sleeve rod (14) is fixedly connected to a tangential bracket (15), the outer end surface of the tangential bracket (5) is fixedly connected to a tangential telescopic spring (17), and the end of the tangential telescopic spring (17) is fixedly connected to a mounting clamping frame (18).

6. A composite lining joint surface test simulation method according to claim 1, characterized in that: The two outer ends of the cushion layer fixed shaft (9) are fixedly connected with fixed mounting plates (20), the fixed mounting plates (20) are bolt-fastened with a rotating mounting sleeve (19), and the two ends of the upper end surface of the rotating mounting sleeve (19) are fixedly connected with mounting support plates (21).

7. A composite lining joint surface test simulation method according to claim 6, characterized in that: The lower end of the rotating installation sleeve (19) is fixedly connected with a clamping rotating sleeve (22), and the clamping rotating sleeve (22) is rotatably sleeved on the outside of the tangential installation shaft (13).

8. A composite lining joint surface test simulation method according to claim 1, characterized in that: The inner sliding sleeve of the cushion fixed shaft (9) is provided with a cushion sleeve rod (10), and cushion support plates (11) are fixedly connected on both sides of the cushion sleeve rod (10), and cushion springs (12) are fixedly connected on the outside of the cushion support plates (11), wherein the ends of the cushion springs (12) at both ends of the cushion sleeve rod (10) are fixedly connected to the inside of the outer lining inner sleeve (4) and the outside of the inner lining outer sleeve (5), respectively.

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