Experimental device for anti-explosion protection of arch dam

Abstract

The utility model discloses an experimental device for anti-explosion protection of an arch dam, and belongs to the field of simulation explosion tests. The experimental device comprises a fixing mechanism, an explosive module, a displacement sensor module and an acceleration sensor module, wherein the fixing mechanism is used for supporting a high polymer plate; the explosive module is arranged above the high polymer plate and is used for carrying out an anti-explosion test on the high polymer plate; the displacement sensor module and the acceleration sensor module are fixedly mounted on the high polymer plate; the shock wave sensor modules are symmetrically arranged on the two sides of the high polymer plate. According to the experimental device, shock wave sensor modules are installed on the upper side and the lower side of a high polymer plate, an explosive module is installed above the high polymer plate, the explosive module is detonated through an exploder, shock waves on the explosion facing face and the explosion backing face of the high polymer plate are detected through the shock wave sensor modules on the two sides, and displacement data are tested through a displacement sensor module. Acceleration data are tested through the acceleration sensor module, so that comprehensive anti-explosion analysis is carried out on the high polymer plate, and the method is more comprehensive and fine.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of simulation explosion test, in particular to an experimental device for arch dam blast protection. BACKGROUND

[0002] Arch structures are widely used in construction due to their good mechanical properties, therefore, it is of great significance to carry out explosion damage research on arch-shaped concrete members, and model test has always been an important means to carry out explosion mechanics research.

[0003] The utility model discloses a test device for researching explosion damage characteristics of arch-shaped plate in water-adjacent state. It can provide a test environment of one side adjacent to air and the other side adjacent to water, reflect the real response of the component under the explosion load, and has important significance for the explosion damage characteristic research of arch-shaped components. However, when testing the base material, it can only test the data of the blast-facing surface, and the test items are less, which has an adverse effect on subsequent data integration analysis.

[0004] Therefore, the present application provides an experimental device for arch dam blast protection to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The present application provides an experimental device for arch dam blast protection, which aims to solve the problem of single test data of the existing test device.

[0006] To achieve the above purpose, the present application provides the following technical solution: an experimental device for arch dam blast protection, comprising a fixing mechanism for supporting a high polymer plate, an explosive module arranged above the high polymer plate for blast resistance test of the high polymer plate, a displacement sensor module and an acceleration sensor module fixedly installed on the high polymer plate, and a plurality of shock wave sensor modules symmetrically arranged on both sides of the high polymer plate:

[0007] The fixing mechanism comprises a base in a frame structure, a plurality of equal-height support columns are fixedly installed on the base near the four corners, two symmetrically arranged C-shaped fixing frames are clamped between the opposite surfaces of the support columns, the high polymer plate is inserted between the two fixing frames, a plurality of linearly arrayed bolts are screwed on the fixing frame, and the ends of the bolts abut against the top of the high polymer plate;

[0008] A support rod is fixedly installed on the base, and the displacement sensor module is fixedly installed on the support rod. The output end of the displacement sensor module abuts against the side of the high polymer plate away from the explosive module.

[0009] The acceleration sensor module is fixedly installed on the high polymer plate on the side away from the explosive module;

[0010] The fixing mechanism further comprises a support mechanism for subjecting the high polymer plate to different environmental tests. In this way, during testing, the displacement sensor module is fixed on the base, the prepared base material high polymer plate of the arch dam is then inserted between the two fixing frames from the side, the bolt is turned, the end of the bolt abuts against the surface of the high polymer plate, thereby fixing the high polymer plate, the high polymer plate is pressed against the displacement sensor module, the acceleration sensor module is then fixed below the high polymer plate, the shock wave sensor modules are installed on the upper and lower sides of the high polymer plate, the explosive module is installed above the high polymer plate, the explosive module is then detonated by the detonator, the shock waves on the blast-facing surface and the blast-back surface of the high polymer plate are detected by the shock wave sensor modules on the two sides, the displacement data is tested by the displacement sensor module, and the acceleration data is tested by the acceleration sensor module, thereby comprehensively analyzing the blast resistance of the high polymer plate, and the analysis is more comprehensive and detailed.

[0011] Preferably, a L-shaped pad plate is inserted into the fixing frame, and the pad plate is inserted into the fixing frame and is arranged between the high polymer plate and the bolt.

[0012] Preferably, in order to perform underwater tests, the support mechanism comprises a water tank, a support base is fixedly installed at the bottom of the water tank, a horizontal groove is formed in the support base, and the base is arranged on the horizontal groove, so as to perform underwater blast resistance tests.

[0013] Preferably, in order to install the shock wave sensor modules, a first vertical rod extending towards the base is fixedly installed in the horizontal groove, at least two shock wave sensor modules are fixedly installed on the first vertical rod, symmetrical fork frames are fixedly installed on the two sides of the water tank, a horizontal rod is lapped on the fork frames, a second vertical rod extending towards the base is fixedly installed on the horizontal rod, and at least two shock wave sensor modules are fixedly installed on the second vertical rod, so as to facilitate testing, and the explosive module is also attached to the second vertical rod by adhesion, so as to adjust the explosion point.

[0014] Preferably, in order to perform air tests, the support mechanism comprises a stand, the base is lapped on the stand, and a reinforcing rib is fixedly installed on the outer side wall of the stand, so as to perform air blast resistance tests.

[0015] Preferably, in order to install the shock wave sensor module, two third vertical rods are symmetrically arranged and fixed on the base on both sides of the stand, at least two shock wave sensor modules and an explosive module are hung on the two third vertical rods, a fourth vertical rod is fixedly installed at the bottom of the stand, and at least two shock wave sensor modules are fixedly installed on the fourth vertical rod, and the explosive module is also attached to the wire between the third vertical rods by viscosity, so as to adjust the explosion point.

[0016] In the experimental device, the displacement sensor module is fixed on the base, then the prepared arch dam base material polymer plate is inserted between the two fixed frames from the side, the bolt end is pressed against the surface of the polymer plate by rotating the bolt, so that the polymer plate is fixed, the acceleration sensor module is fixed below the polymer plate, the shock wave sensor module is installed on the upper and lower sides of the polymer plate, the explosive module is installed above the polymer plate, then the explosive module is detonated by the initiator, the shock waves of the blast face and the back blast face of the polymer plate are detected by the shock wave sensor modules on both sides, the displacement data is tested by the displacement sensor module, and the acceleration data is tested by the acceleration sensor module, so that the polymer plate is comprehensively analyzed, and the analysis is more comprehensive and detailed.

[0017] The experimental device can be used for underwater and air blast resistance test according to requirements, has stable structure, is convenient to use, occupies less land compared with natural resources, and has higher controllability of test conditions. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a top view of an experimental device for arch dam blast resistance protection;

[0019] Figure 2 Fig. 2 is a bottom view of an experimental device for arch dam blast resistance protection;

[0020] Figure 3 Fig. 3 is a schematic view of an underwater experimental state of an experimental device for arch dam blast resistance protection;

[0021] Figure 4 Fig. 4 is a schematic view of a cross-sectional structure of an underwater experimental state of an experimental device for arch dam blast resistance protection;

[0022] Figure 5 Fig. 5 is a schematic view of an air experimental state of an experimental device for arch dam blast resistance protection;

[0023] Figure 6 Fig. 6 is a schematic view of a cross-sectional structure of an air experimental state of an experimental device for arch dam blast resistance protection.

[0024] In the drawings:

[0025] 1, polymer plate; 2, fixing mechanism; 21, base; 22, support column; 23, fixed frame; 24, bolt; 25, support rod; 26, backing plate; 3, explosive module; 4, displacement sensor module; 5, acceleration sensor module; 6, shock wave sensor module; 7, support mechanism; 71a, water tank; 72a, support base; 73a, transverse groove; 74a, first vertical rod; 75a, fork; 76a, crossbar; 77a, second vertical rod; 71b, stand; 72b, reinforcing rib; 73b, third vertical rod; 74b, fourth vertical rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described 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 labor fall within the scope of protection of the present application.

[0027] Embodiment 1

[0028] The present embodiment provides an experimental device for underwater anti-blast protection of an arch dam, as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the experimental device comprises a fixing mechanism 2 for supporting a polymer plate 1, an explosive module 3 arranged above the polymer plate 1 for anti-blast test of the polymer plate 1, a displacement sensor module 4 and an acceleration sensor module 5 fixedly installed on the polymer plate 1, and a plurality of shock wave sensor modules 6 symmetrically arranged on both sides of the polymer plate 1.

[0029] The fixing mechanism 2 comprises a base 21 in the form of a frame body, a plurality of support columns 22 of equal height are fixedly installed on the base 21 near the four corners, two symmetrically arranged C-shaped fixed frames 23 are clamped between the opposite faces of the support columns 22, the polymer plate 1 is inserted between the two fixed frames 23, a plurality of bolts 24 in linear array are screwed on the fixed frames 23, and the ends of the bolts 24 abut against the top of the polymer plate 1.

[0030] A support rod 25 is fixedly installed on the base 21, and the displacement sensor module 4 is fixedly installed on the support rod 25, with the output end of the displacement sensor module 4 abutting against the side of the polymer plate 1 away from the explosive module 3.

[0031] The acceleration sensor module 5 is fixedly installed on the side of the polymer plate 1 away from the explosive module 3.

[0032] The fixing mechanism 2 further comprises a support mechanism 7 for supporting the base 21 to perform different environmental tests on the polymer plate 1.

[0033] In use, the displacement sensor module 4 is fixed on the base 21, and then the prepared arch dam base material polymer plate 1 is inserted between the two fixed frames 23 from the side, the bolt 24 is turned, the end of the bolt 24 abuts against the surface of the polymer plate 1, so as to fix the polymer plate 1, the polymer plate 1 is pressed on the displacement sensor module 4, then the acceleration sensor module 5 is fixed below the polymer plate 1, the shock wave sensor module 6 is installed on the upper and lower sides of the polymer plate 1, the explosive module 3 is installed above the polymer plate 1, then the explosive module 3 is detonated by the detonator, the shock wave on the blast face and the back blast face of the polymer plate 1 is detected by the shock wave sensor modules 6 on both sides, the displacement data is tested by the displacement sensor module 4, and the acceleration data is tested by the acceleration sensor module 5, so that the polymer plate 1 is comprehensively analyzed for blast resistance, and the analysis is more comprehensive and detailed.

[0034] Specifically, the fixed frame 23 is inserted with a L-shaped pad plate 26, and the pad plate 26 is inserted into the fixed frame 23 and is padded between the polymer plate 1 and the bolt 24.

[0035] In use, the pad plate 26 is padded on the polymer plate 1, and the pad plate 26 is extruded when the polymer plate 1 is fixed by the bolt 24, so that the polymer plate 1 is fixed by the cooperation of the pad plate 26 and the fixed frame 23, and the support is more uniform.

[0036] More specifically, the support mechanism 7 includes a water tank 71a, and a support base 72a is fixedly installed at the bottom of the water tank 71a, and a horizontal groove 73a is formed in the support base 72a, and the base 21 is arranged on the horizontal groove 73a.

[0037] In use, the base 21 is placed on the horizontal groove 73a in the water tank 71a, and then enough water is poured into the water tank 71a for underwater blast resistance test.

[0038] Further, a first vertical rod 74a extending towards the base 21 is fixedly installed in the horizontal groove 73a, and at least two shock wave sensor modules 6 are fixedly installed on the first vertical rod 74a, and symmetrical fork frames 75a are fixedly installed on both sides of the water tank 71a, a horizontal rod 76a is overlapped on the fork frame 75a, a second vertical rod 77a extending towards the base 21 is fixedly installed on the horizontal rod 76a, and at least two shock wave sensor modules 6 are fixedly installed on the second vertical rod 77a.

[0039] In use, the shock wave sensor modules 6 are fixed on the first vertical rod 74a and the second vertical rod 77a by iron wire winding, and then the horizontal rod 76a is placed horizontally on the fork frame 75a, so as to support the shock wave sensor modules 6, thereby facilitating the test, and the explosive module 3 is also attached to the second vertical rod 77a by its viscosity, so as to adjust the explosion point.

[0040] Embodiment 2

[0041] Different from Embodiment 1, the embodiment provides an experimental device for air blast protection of an arch dam, as shown in Figure 1 、 Figure 2 、 Figure 5 and Figure 6 , the experimental device comprises a fixing mechanism 2 for supporting a polymer plate 1, an explosive module 3 arranged above the polymer plate 1 for blast testing of the polymer plate 1, a displacement sensor module 4 and an acceleration sensor module 5 fixedly installed on the polymer plate 1, and a plurality of shock wave sensor modules 6 symmetrically arranged on both sides of the polymer plate 1.

[0042] The fixing mechanism 2 comprises a base 21 in a frame structure, a plurality of equal-height support columns 22 are fixedly installed on the base 21 near the four corners, two symmetrically arranged C-shaped fixing frames 23 are clamped between the opposite faces of the support columns 22, the polymer plate 1 is inserted between the two fixing frames 23, a plurality of linearly arrayed bolts 24 are screwed on the fixing frames 23, and the ends of the bolts 24 abut against the top of the polymer plate 1.

[0043] The base 21 is fixedly installed with a support rod 25, and the displacement sensor module 4 is fixedly installed on the support rod 25, with the output end of the displacement sensor module 4 abutting against the side of the polymer plate 1 away from the explosive module 3.

[0044] The acceleration sensor module 5 is fixedly installed on the side of the polymer plate 1 away from the explosive module 3.

[0045] The fixing mechanism 2 further comprises a support mechanism 7 for supporting the base 21 to perform different environmental tests on the polymer plate 1.

[0046] In use, the displacement sensor module 4 is fixed on the base 21, then the base material polymer plate 1 of the arch dam prepared is inserted from the side between the two fixing frames 23, the bolts 24 are turned, the ends of the bolts 24 abut against the surface of the polymer plate 1, so as to fix the polymer plate 1, the polymer plate 1 is pressed on the displacement sensor module 4, then the acceleration sensor module 5 is fixed below the polymer plate 1, the shock wave sensor modules 6 are installed on the upper and lower sides of the polymer plate 1, the explosive module 3 is installed above the polymer plate 1, then the explosive module 3 is detonated by the detonator, the shock waves on the blast-facing surface and the blast-back surface of the polymer plate 1 are detected by the shock wave sensor modules 6 on both sides, the displacement data are tested by the displacement sensor module 4, and the acceleration data are tested by the acceleration sensor module 5, so as to comprehensively analyze the blast resistance of the polymer plate 1, and the analysis is more comprehensive and detailed.

[0047] Specifically, the fixing frame 23 is inserted with a L-shaped spacer plate 26, and the spacer plate 26 is inserted into the fixing frame 23 and is arranged between the polymer plate 1 and the bolts 24.

[0048] In use, the gasket 26 is placed on the polymer plate 1, and the gasket 26 is pressed when the polymer plate 1 is fixed by the bolts 24, so that the polymer plate 1 is fixed by the cooperation of the gasket 26 and the fixed frame 23, and each place is more uniformly supported.

[0049] More specifically, the support mechanism 7 includes a stand 71b, and the base 21 is overlapped on the stand 71b, and the reinforcing rib 72b is fixedly installed on the outer wall of the stand 71b.

[0050] In use, the base 21 is installed on the stand 71b, and the stand 71b is supported by the reinforcing rib 72b, so as to improve the support strength of the stand 71b, so as to perform the air blast test.

[0051] Further, the two third vertical rods 73b symmetrically arranged are fixedly installed on the stand 71b on both sides of the base 21, and the at least two shock wave sensor modules 6 and the explosive module 3 are hung on the two third vertical rods 73b, and the fourth vertical rod 74b is fixedly installed at the bottom of the stand 71b, and the at least two shock wave sensor modules 6 are fixedly installed on the fourth vertical rod 74b.

[0052] In use, the shock wave sensor module 6 is hung and fixed on the third vertical rod 73b and the fourth vertical rod 74b by the iron wire, so as to support the shock wave sensor module 6, thereby facilitating the test, and the explosive module 3 is also attached to the iron wire between the third vertical rods 73b by the viscosity, so as to adjust the explosion point.

[0053] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical solution and the concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An experimental device for arch dam blast protection, comprising a fixing mechanism (2) for supporting a polymer plate (1), an explosive module (3) arranged above the polymer plate (1) for blast testing of the polymer plate (1), a displacement sensor module (4) and an acceleration sensor module (5) fixedly installed on the polymer plate (1), and a plurality of shock wave sensor modules (6) symmetrically arranged on both sides of the polymer plate (1), characterized in that: the fixing mechanism (2) comprises a base (21) in a frame structure, equal-height support columns (22) are fixedly installed on the base (21) near the four corners, two symmetrically arranged C-shaped fixed frames (23) are clamped between opposite surfaces of the support columns (22), the polymer plate (1) is inserted between the two fixed frames (23), a plurality of bolts (24) arranged in a linear array are screwed on the fixed frames (23), and the ends of the bolts (24) abut against the top of the polymer plate (1); the base (21) is fixedly installed with a support rod (25), the displacement sensor module (4) is fixedly installed on the support rod (25), and the output end of the displacement sensor module (4) abuts against the side of the polymer plate (1) away from the explosive module (3); the acceleration sensor module (5) is fixedly installed on the side of the polymer plate (1) away from the explosive module (3); and the fixing mechanism (2) further comprises a support mechanism (7) for different environmental testing of the polymer plate (1) by the support base (21). A L-shaped spacer plate (26) is inserted in the fixed frame (23), and the spacer plate (26) is inserted in the fixed frame (23) and is arranged between the polymer plate (1) and the bolts (24). The support mechanism (7) comprises a water tank (71a), a support base (72a) is fixedly installed at the bottom of the water tank (71a), a horizontal groove (73a) is formed in the support base (72a), and the base (21) is arranged on the horizontal groove (73a). A first vertical rod (74a) extending towards the base (21) is fixedly installed in the horizontal groove (73a), at least two shock wave sensor modules (6) are fixedly installed on the first vertical rod (74a), symmetrically arranged fork frames (75a) are fixedly installed on both sides of the water tank (71a), a horizontal rod (76a) is lapped on the fork frames (75a), a second vertical rod (77a) extending towards the base (21) is fixedly installed on the horizontal rod (76a), and at least two shock wave sensor modules (6) are fixedly installed on the second vertical rod (77a). The support mechanism (7) comprises a stand (71b), the base (21) is lapped on the stand (71b), and a reinforcing rib (72b) is fixedly installed on the outer side wall of the stand (71b).

2. The experimental device for the anti-blast protection of an arch dam according to claim 1, characterized in that: ​ 3. The experimental device for the anti-blast protection of an arch dam according to claim 1, characterized in that: ​ 4. The experimental device for the anti-blast protection of an arch dam according to claim 3, characterized in that: ​ 5. The experimental device for the anti-blast protection of an arch dam according to claim 1, characterized in that: ​ 6. An experimental device for the anti-blast protection of an arch dam according to claim 5, characterized in that: The stand (71b) is fixedly installed with two symmetrically arranged third vertical rods (73b) on both sides of the base (21), at least two shock wave sensor modules (6) and one explosive module (3) are hung on the two third vertical rods (73b), and the bottom of the stand (71b) is fixedly installed with a fourth vertical rod (74b), and at least two shock wave sensor modules (6) are fixedly installed on the fourth vertical rod (74b).

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