Test device for evaluating appearance of tunnel secondary lining side wall concrete

Abstract

The application discloses a kind of tunnel second lining side wall concrete appearance evaluation test device, it is related to the technical field of tunnel second lining side wall concrete, including: device ontology, device ontology is the hollow structure of upper end opening, device ontology includes bottom plate, first side plate, second side plate, back plate and side wall plate, the bottom of first side plate, second side plate, back plate and side wall plate is detachably connected with bottom plate, two side edges of back plate and side wall plate are detachably fixedly connected with first side plate and second side plate, the cavity formed by bottom plate, first side plate, second side plate, back plate and side wall plate is used to pour concrete, side wall plate includes side wall inclined plate, side wall inclined plate is used to simulate the situation that bubble in tunnel second lining side wall concrete is blocked, simple structure, easy to assemble, safe and reliable, save material, can simulate tunnel second lining side wall concrete solid structure, can be formed in indoor laboratory and carries out appearance evaluation experiment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel secondary lining side wall concrete, and particularly relates to a tunnel secondary lining side wall concrete appearance evaluation test device. BACKGROUND

[0002] Tunnel secondary lining concrete is a tunnel second lining structure built by using concrete under the condition that the tunnel has been subjected to primary support and waterproof material arrangement. The tunnel secondary lining concrete not only bears structural stress and waterproof function, but also needs to ensure good appearance quality. However, in actual construction, in the process of vibrating lining concrete in the arc section of the tunnel side wall, the concrete slurry bubbles float up and adhere to the surface of the arc-shaped formwork, and it is not easy to discharge in time to form a large number of bubbles on the surface of the hardened concrete.

[0003] The measures to improve the appearance quality of the tunnel secondary lining side wall concrete usually include optimizing the concrete mix proportion, improving the workability of the concrete, reducing the air content of the concrete, and strengthening the vibration of the concrete. However, the related improvement measures do not have indoor test methods to directly observe the existence and development of bubbles, and can only be verified in entity engineering, which not only wastes time but also increases the construction cost of the engineering.

[0004] Therefore, there is an urgent need for a device for making tunnel secondary lining side wall concrete appearance evaluation experiments, which is simple in structure, easy to assemble, safe and reliable, saves materials, simulates entity structures, can be formed in an indoor laboratory and can perform appearance evaluation experiments, and provides a convenient research basis for tunnel secondary lining side wall concrete appearance evaluation. SUMMARY

[0005] The present application aims to provide a device for making tunnel secondary lining side wall concrete appearance evaluation experiments to solve the problems existing in the prior art, which is simple in structure, easy to assemble, safe and reliable, saves materials, can simulate tunnel secondary lining side wall concrete entity structures, and can be formed in an indoor laboratory and can perform appearance evaluation experiments.

[0006] To achieve the above-mentioned purpose, the present application provides the following solutions.

[0007] The application provides a tunnel second lining side wall concrete appearance evaluation test device, which comprises a device body, the device body is a hollow structure with an open upper end, the device body comprises a bottom plate, a first side plate, a second side plate, a back plate and a side wall plate, the bottom of the first side plate, the second side plate, the back plate and the side wall plate is detachably connected to the bottom plate, the two side edges of the back plate are detachably fixedly connected with the first side plate and the second side plate respectively, the two side edges of the side wall plate are detachably fixedly connected with the first side plate and the second side plate respectively, the cavity formed by the bottom plate, the first side plate, the second side plate, the back plate and the side wall plate is used for pouring concrete, the first side plate, the second side plate and the back plate are perpendicular to the bottom plate, and the side wall plate comprises a side wall inclined plate, and the top of the side wall inclined plate is inclined to the direction of the back plate.

[0008] Preferably, the side wall inclined plate is a transparent hard acrylic plate.

[0009] Preferably, recesses are arranged on the first side plate and the second side plate at positions where the back plate and the side wall plate are connected, and the side edges of the back plate and the side wall plate can be connected to the recesses.

[0010] Preferably, the side edges of the back plate and the side wall plate are chamfered.

[0011] Preferably, the side wall plate further comprises a side wall upper plate and a side wall lower plate, the side wall upper plate is sealingly connected above the side wall inclined plate, the two side edges of the side wall upper plate are connected to the recesses in the first side plate and the second side plate respectively, the side wall lower plate is sealingly connected below the side wall inclined plate, and the bottom of the side wall lower plate is detachably fixedly connected to the bottom plate.

[0012] Preferably, the bottom of the first side plate, the second side plate, the back plate and the side wall lower plate is provided with a connecting part, and the connecting part is used for detachably fixedly connecting with the bottom plate.

[0013] Preferably, the connecting part comprises a connecting plate and a fixing bolt, the connecting plate is arranged in parallel with the bottom plate, the connecting plate is provided with a fixing hole, the bottom plate is provided with a threaded hole at a position corresponding to each fixing hole, and each fixing bolt is threadedly connected with the fixing hole and the threaded hole.

[0014] Preferably, the first side plate extends one end of the side wall plate as a first flange plate, the first flange plate is provided with a plurality of first through holes, the second side plate extends one end of the side wall plate as a second flange plate, the second flange plate is provided with a plurality of second through holes, the first side plate extends one end of the back plate as a third flange plate, the third flange plate is provided with a plurality of third through holes, the second side plate extends one end of the back plate as a fourth flange plate, the fourth flange plate is provided with a plurality of fourth through holes, each of the pair of pull screws is screwed and fixed by the nut after extending out of both ends of the first through hole and the second through hole after passing through the corresponding first through hole and the second through hole, and each of the pair of pull screws is screwed and fixed by the nut after extending out of both ends of the third through hole and the fourth through hole after passing through the corresponding third through hole and the fourth through hole.

[0015] Preferably, the bottom plate is provided with a handle on both sides, and the handle is used to move the device body.

[0016] The present application has the following technical effects relative to the prior art:

[0017] The present application provides a tunnel secondary lining side wall concrete appearance evaluation test device, the bottom plate, the first side plate, the second side plate, the back plate and the side wall plate are detachably connected, and the side wall inclined plate is arranged on the side wall plate part, the side wall inclined plate is arranged obliquely, and the obliquely arranged side wall inclined plate can bring greater resistance to the bubbles in the concrete, so as to simulate the resistance of the bubbles in the tunnel secondary lining side wall concrete when floating up, the device has simple structure, is easy to assemble, is safe and reliable, saves concrete materials, can simulate the tunnel secondary lining side wall concrete entity structure, and can be formed in a laboratory and subjected to appearance evaluation experiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Fig. 1 The structure schematic diagram of the tunnel secondary lining side wall concrete appearance evaluation test device provided by the present application is shown in the figure.

[0020] Fig. 2 The structure schematic diagram of the connection part of the tunnel secondary lining side wall concrete appearance evaluation test device provided by the present application is shown in the figure.

[0021] In the figure: 1, bottom plate; 2, first side plate; 3, second side plate; 4, back plate; 5, side wall inclined plate; 6, side wall upper plate; 7, side wall lower plate; 8, pull screw; 19, handle; 10, connecting part; 11, connecting plate; 12, fixing bolt; alpha, side wall inclined plate inclination angle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0023] The purpose of the present application is to provide a device for making tunnel secondary lining side wall concrete appearance evaluation experiment, to solve the problems existing in the prior art, which has simple structure, is easy to assemble, is safe and reliable, saves materials, can simulate the tunnel secondary lining side wall concrete solid structure, and can be formed in a laboratory and used for appearance evaluation experiment.

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0025] The present application provides a tunnel secondary lining side wall concrete appearance evaluation test device, as shown in Figs. 1-2 The device body is a hollow structure with an open upper end, and the device body includes a bottom plate 1, a first side plate 2, a second side plate 3, a back plate 4 and a side wall plate. The bottom of the first side plate 2, the second side plate 3, the back plate 4 and the side wall plate is detachably connected to the bottom plate 1. The two side edges of the back plate 4 are detachably fixedly connected to the first side plate 2 and the second side plate 3, respectively. The two side edges of the side wall plate are detachably fixedly connected to the first side plate 2 and the second side plate 3, respectively. The cavity formed by the bottom plate 1, the first side plate 2, the second side plate 3, the back plate 4 and the side wall plate is used for pouring concrete. The first side plate 2, the second side plate 3 and the back plate 4 are perpendicular to the bottom plate 1. The side wall plate includes a side wall inclined plate 5, and the top of the side wall inclined plate 5 is inclined towards the back plate 4.

[0026] The bottom plate 1, the first side plate 2, the second side plate 3, the back plate 4 and the side wall plate are detachably connected, which facilitates the taking out of the concrete appearance sample poured in the device body for experiment, and the side wall inclined plate 5 is arranged on the side wall plate part, the side wall inclined plate 5 is arranged obliquely, the obliquely arranged side wall inclined plate 5 can bring greater resistance to the bubbles in the concrete, and is used for simulating the resistance condition of the bubbles in the tunnel secondary lining side wall concrete when floating up, the device has simple structure, is easy to assemble, is safe and reliable, saves concrete materials, can simulate the tunnel secondary lining side wall concrete entity structure, and can be formed in a laboratory and subjected to appearance evaluation experiment.

[0027] In a preferred embodiment, the cross-sectional area of the opening at the upper end of the device body is 800 cm2, the bottom plate 1 is made of a 10 mm thick steel plate, is 600 mm long and 500 mm wide, the back plate 4 is made of an 8 mm thick steel plate, is 700 mm long and 410 mm wide, and the first side plate 2 and the second side plate 3 are both made of a 10 mm thick steel plate, are 300 mm wide at the top, 500 mm wide at the bottom, and 700 mm high.

[0028] In a preferred embodiment, the side wall inclined plate 5 is a transparent hard acrylic plate, the bubbles generated and floated up during the pouring of the concrete can be observed in real time through the side wall inclined plate 5 made of a high-transparency hard acrylic plate, the vibration time is adjusted and other ways are used to find the concrete sample with the least bubbles to guide the actual construction, the inclination angle α of the side wall inclined plate 5 between the side wall inclined plate 5 and the bottom plate 1 is 75°, the side wall inclined plate 5 is made of a 6 mm thick transparent hard acrylic plate, is 410 mm long and 465 mm high.

[0029] In a preferred embodiment, recesses are arranged on the first side plate 2 and the second side plate 3 at the connecting positions of the back plate 4 and the side wall plate, the side edges of the back plate 4 and the side wall plate can be connected to the recesses, and the concrete can be sealed.

[0030] In a preferred embodiment, the side edges of the back plate 4 and the side wall plate are chamfered, which facilitates the insertion into the recesses, and the connecting positions between the first side plate 2, the second side plate 3, the back plate 4 and the side wall plate are further sealed with glass glue, so as to improve the sealing property, prevent the concrete from running, affect the appearance quality of the concrete, and thus affect the authenticity of the test on how to remove the bubbles to affect the appearance of the concrete.

[0031] In a preferred embodiment, the side wall plate further comprises a side wall upper plate 6 and a side wall lower plate 7, the side wall upper plate 6 is sealingly connected to the upper side of the side wall inclined plate 5, the two side edges of the side wall upper plate 6 are respectively fitted into the grooves of the first side plate 2 and the second side plate 3, the side wall lower plate 7 is sealingly connected to the lower side of the side wall inclined plate 5, and the bottom of the side wall lower plate 7 is detachably fixedly connected with the bottom plate 1, the connection between the side wall upper plate 6, the side wall lower plate 7 and the side wall inclined plate 5 is made into a plug-in connection and sealed with glass glue, which can stabilize and seal the connection between the side wall upper plate 6, the side wall lower plate 7 and the side wall inclined plate 5, the side wall upper plate 6 assembly module is made of 8mm thick steel plate, 410mm long and 50mm wide. The side wall lower plate 7 assembly module is made of 8mm thick steel plate, 410mm long and 200mm wide.

[0032] In a preferred embodiment, the first side plate 2, the second side plate 3, the back plate 4 and the bottom of the side wall plate lower plate are provided with a connecting part 10, which is used for detachable fixed connection with the bottom plate 1, which is simple in structure and convenient for disassembly and removal of the concrete sample.

[0033] In a preferred embodiment, the connecting part 10 comprises a connecting plate 11 and a fixing bolt 12, the connecting plate 11 is arranged parallel to the bottom plate 1, the connecting plate 11 is provided with fixing holes, and the bottom plate 1 is provided with threaded holes corresponding to the positions of the fixing holes, and each fixing bolt 12 is threadedly connected through the fixing hole and the threaded hole.

[0034] In a preferred embodiment, it further comprises a plurality of tensioning screws 8 and a plurality of nuts, the tensioning screw 8 is a full tooth tensioning screw 8 with a length of 500mm, one end of the first side plate 2 extending out of the side wall plate is a first flange plate, the first flange plate is provided with a plurality of first through holes, one end of the second side plate 3 extending out of the side wall plate is a second flange plate, the second flange plate is provided with a plurality of second through holes, one end of the first side plate 2 extending out of the back plate 4 is a third flange plate, the third flange plate is provided with a plurality of third through holes, one end of the second side plate 3 extending out of the back plate 4 is a fourth flange plate, the fourth flange plate is provided with a plurality of fourth through holes, and the two ends of each tensioning screw 8 extending out of the first through hole and the second through hole after passing through the corresponding first through hole and the second through hole are threadedly fixed by the nut, the two ends of each tensioning screw 8 extending out of the third through hole and the fourth through hole after passing through the corresponding third through hole and the fourth through hole are threadedly fixed by the nut, and the structure of the assembled device body is further stabilized by the tensioning screw 8.

[0035] In a preferred embodiment, the two sides of the bottom plate 1 are provided with handles 19, which are used for moving the device body and facilitating the movement of the device body.

[0036] The principles and implementation manners of the present application are described by using specific examples in the present application, and the above examples are only used for helping to understand the method of the present application and its core idea; meanwhile, for the general technical personnel in the art, according to the idea of the present application, the specific implementation manners and application ranges will be changed. In conclusion, the content of the present specification should not be understood as the limitation of the present application.

Claims

1. A test device for evaluating the appearance of tunnel lining wall concrete, characterized by: The utility model relates to a device body, the device body is hollow structure of open upper end, the device body includes bottom plate, first side plate, second side plate, backboard and wallboard, the bottom edge of first side plate, second side plate, backboard and wallboard can be detachably connected with bottom plate, two side edges of backboard are detachably fixedly connected with first side plate and second side plate respectively, two side edges of wallboard are detachably fixedly connected with first side plate and second side plate respectively, the cavity formed by bottom plate, first side plate, second side plate, backboard and wallboard is used for pouring concrete, first side plate, second side plate and backboard are perpendicular to bottom plate, wallboard includes wallboard inclined plate, the top of wallboard inclined plate is inclined to the direction of backboard, and wallboard inclined plate is transparent plate. The wallboard further includes a wallboard upper plate and a wallboard lower plate. The wallboard upper plate is sealingly connected above the wallboard inclined plate. The two side edges of the wallboard upper plate are respectively fitted into the grooves of the first side plate and the second side plate. The wallboard lower plate is sealingly connected below the wallboard inclined plate, and the bottom of the wallboard lower plate is detachably fixedly connected with the bottom plate. The bottom of the first side plate, the second side plate, the backboard, and the wallboard lower plate is provided with a connecting part for detachable fixed connection with the bottom plate. The first side plate and the second side plate are provided with grooves at the connection with the backboard and the wallboard. The side edges of the backboard and the wallboard can be fitted into the grooves.

2. The tunnel lining edge wall concrete appearance evaluation test device according to claim 1, characterized by: The side edges of the backboard and the wallboard are chamfered.

3. The tunnel lining wall concrete appearance evaluation test device according to claim 2, characterized by: The connecting part includes a connecting plate and a fixing bolt. The connecting plate is parallel to the bottom plate. The connecting plate is provided with a fixing hole. The bottom plate is provided with a threaded hole corresponding to the position of each fixing hole. Each fixing bolt is threadedly connected through the fixing hole and the threaded hole.

4. The tunnel lining wall concrete appearance evaluation test device according to claim 1, characterized by: The first side plate is provided with a first flange plate at one end extending out of the wallboard. The first flange plate is provided with a plurality of first through holes. The second side plate is provided with a second flange plate at one end extending out of the wallboard. The second flange plate is provided with a plurality of second through holes. The first side plate is provided with a third flange plate at one end extending out of the backboard. The third flange plate is provided with a plurality of third through holes. The second side plate is provided with a fourth flange plate at one end extending out of the backboard. The fourth flange plate is provided with a plurality of fourth through holes. Each pair of pull screws is threadedly fixed by the nut after extending out of the first through hole and the second through hole through the corresponding first through hole and second through hole. Each pair of pull screws is threadedly fixed by the nut after extending out of the third through hole and the fourth through hole through the corresponding third through hole and fourth through hole.

5. The tunnel lining wall concrete appearance evaluation test device according to claim 4, characterized by: The bottom plate is provided with a handle at both sides for moving the device body.

6. The tunnel lining wall concrete appearance evaluation test device according to claim 1, characterized by: ​

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