Reference frame for rock mass high-pressure deformation test

Abstract

The utility model relates to a reference frame for a rock mass high-pressure deformation test. The method is suitable for the technical field of rock mass deformation measurement. The technical problem to be solved by the utility model is to provide the reference frame for measuring the rock mass high-pressure deformation test. According to the technical scheme, the reference frame for the rock mass high-pressure deformation test comprises a horizontal supporting frame which is arranged on a measuring face of a rock mass and can support measuring equipment used for the rock mass high-pressure deformation test on the measuring face; the vertical fixing frame is vertically arranged in the middle of the top of the horizontal supporting frame, the top of the vertical fixing frame is provided with a positioning hole which can correspond to a rock mass measuring hole in the measuring face and is located on the same axis with the rock mass measuring hole, and the vertical fixing frame is used for fixing a measuring head in measuring equipment.

Description

Technical Field

[0001] This utility model relates to the field of rock mass deformation measurement technology, and in particular to a reference frame for measuring high-pressure deformation tests of rock masses. Background Technology

[0002] In the fields of geomechanics and geotechnical engineering, the bearing plate center hole method is a commonly used technique for evaluating the stress-strain characteristics of media such as rock masses or soils, and it has important application value, especially in the study of the stability of underground structures.

[0003] Currently, in conventional deep rock mass deformation measurement systems using the bearing plate center hole method, the probe is typically fixed at the borehole opening. This fixing method results in the inability to effectively measure rock mass displacement within a certain range near the borehole opening; for example, rock mass displacement within 20 cm of the borehole opening cannot be obtained. To fully obtain shallow rock mass displacement, the probe needs to be fixed to an external measuring rod and extended to the ground surface via structures such as I-beams. However, most measurement systems lack a stable and reliable reference frame to support and fix the probe and related measuring equipment, thus affecting the accuracy of the measurement results, as any slight displacement or vibration can lead to measurement errors.

[0004] Therefore, it is necessary to design a reference frame for measuring high-pressure deformation tests of rock mass. This reference frame should be able to easily fix the probe and have sufficient stability to ensure the accuracy of the measurement results. Utility Model Content

[0005] The technical problem to be solved by this utility model is: to provide a reference frame for measuring high-pressure deformation tests of rock masses, in view of the above-mentioned problems.

[0006] The technical solution adopted in this utility model is: a reference frame for measuring high-pressure deformation tests of rock mass, comprising:

[0007] A horizontal support frame, set on the measuring surface of the rock mass, can provide support for the measuring equipment used for high-pressure deformation testing of the rock mass on the measuring surface;

[0008] The vertical fixing frame is vertically installed at the top center of the horizontal support frame. The top of the vertical fixing frame is provided with positioning holes that correspond to the rock mass measuring holes on the measuring surface and are on the same axis. The vertical fixing frame is used to fix the measuring head in the measuring equipment.

[0009] Through the above-mentioned technical means, a horizontal support frame is used to provide a support foundation for the vertical fixing frame and measuring equipment. The vertical fixing frame is equipped with positioning holes that can fix the probe. The positioning holes correspond to the rock mass measuring holes on the measuring surface, so that the probe can extend to the ground through the external structure. The vertical fixing frame can provide fixed support for the extended probe, thereby facilitating the measuring equipment to obtain displacement information of shallow rock mass more accurately.

[0010] In some embodiments, the horizontal support frame includes a reference beam, measuring rods, and reference columns. A set of reference beams are arranged horizontally and parallel to each other on both sides above the rock mass measuring hole. The reference beams are connected to each other by multiple horizontally arranged measuring rods, which are spaced apart along the axial direction of the reference beams. The vertical fixing frame is vertically connected to the middle position of the top of both sides of the reference beams. The measuring rods on both sides are symmetrical about the vertical fixing frame. The bottom ends of the reference beams are mounted on the measuring surface by vertically arranged reference columns.

[0011] In some embodiments, the reference beam is made of I-beam, the measuring rod is made of square steel, and the reference column is made of steel cylinder.

[0012] In some embodiments, the vertical fixing frame includes a horizontal support and a vertical support. A set of vertical supports is vertically connected to the top middle position of the horizontal support frame. The tops of the set of vertical supports are connected to each other via the horizontal support. The positioning hole is provided on the horizontal support, and the positioning hole is on the same vertical axis as the rock mass measuring hole.

[0013] In some embodiments, the vertical support frame further includes a triangular steel frame, and the two sides of the vertical support frame are connected to the top of the horizontal support frame. The triangular steel frame is arranged at an angle to provide support for the two sides of the vertical support frame.

[0014] In some embodiments, the triangular steel frame is made of steel sheets.

[0015] In some embodiments, the horizontal support and the vertical support are made of square steel.

[0016] The beneficial effects of this utility model are:

[0017] 1. A horizontal support frame provides basic support for the vertical fixing frame and measuring equipment. The vertical fixing frame is located at the center of the horizontal support frame. The positioning holes on the vertical fixing frame correspond to the coaxial rock mass measuring holes below, ensuring that the probe can be accurately aligned with the target measuring hole. It also facilitates the probe to pass through the positioning holes of the vertical fixing frame and be inserted into the rock mass measuring hole, thus improving the accuracy of the measurement data.

[0018] 2. The stable grid structure formed by the combination of the reference beam and measuring rod enhances the overall rigidity of the horizontal support frame. The reference column made of steel cylinder at the bottom provides a solid foundation, ensuring the overall structure of the reference frame is stably installed on the measuring surface. The vertical support is supported at the center by triangular steel frames on both sides, improving the stability and load-bearing capacity of the vertical frame, reducing the risk of positional deviation due to external factors, and ensuring the accuracy of the measurement results. Simultaneously, all components are made of high-strength steel, and all components are connected by welding, improving the connection strength of the entire reference frame. This gives the reference frame excellent compressive and bending resistance, making it less prone to deformation or damage during use, and also helping to resist the impact of external vibrations on the measuring equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this application.

[0020] Explanation of reference numerals in the attached figures:

[0021] 101. Vertical support; 102. Horizontal support; 103. Triangular steel frame; 104. Positioning hole; 201. Reference beam; 202. Reference column; 203. Measuring rod; 301. Rock mass measuring hole.

[0022] This specification includes references to "one embodiment" or "implementation". The use of the phrase "in one embodiment" or "in an embodiment" does not necessarily refer to the same embodiment. Specific features, structures, or characteristics may be combined in any suitable manner consistent with this disclosure.

[0023] The term "comprising" is open-ended. As used in the appended claims, it does not exclude additional structures or steps. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below with reference to specific embodiments.

[0025] Combination Figure 1 As shown, this embodiment is a reference frame for measuring high-pressure deformation tests of rock mass, including a horizontal support frame and a vertical fixing frame. A rock mass measuring hole 301 is provided on the measuring surface of the rock mass. A horizontal support frame is provided on the measuring surface of the rock mass. A vertical fixing frame is vertically provided at the middle position of the top of the horizontal support frame. The top of the vertical fixing frame is provided with a positioning hole 104 that can be aligned with the rock mass measuring hole 301. A measuring device for high-pressure deformation tests of rock mass can be installed on the top of the horizontal support frame. The horizontal support frame provides support for the vertical fixing frame and the measuring device. The probe in the measuring device can be fixed in the positioning hole 104 of the vertical fixing frame.

[0026] In some implementations, the horizontal support frame includes a reference beam 201, measuring rods 203, and reference columns 202. A set of reference beams 201 are arranged horizontally and parallel to each other on both sides above the rock measuring hole 301. The reference beams 201 are interconnected by multiple horizontally arranged measuring rods 203, which are spaced apart along the axial direction of the reference beams 201. Vertical fixing frames are vertically connected to the middle of the top of both sides of the reference beams 201. The measuring rods 203 on both sides are symmetrical about the vertical fixing frames. The bottom ends of the reference beams 201 are mounted on the measuring surface via vertically arranged reference columns 202. Specifically, in this embodiment, two reference beams 201, six measuring rods 203, and four reference columns 202 are used. The bottom ends of both reference beams 201 are vertically connected to the reference columns 202. Multiple measuring rods 203 are horizontally connected between the two reference beams 201. The measuring rods 203 and the reference beams 201 are perpendicular to each other. The six measuring rods 203 are symmetrically distributed on both sides of the vertical fixing frame with the vertical fixing frame as the center.

[0027] Furthermore, in this embodiment, the reference beam 201 is made of 22# I-beam steel, and its length is 4.5m. This length ensures the stability of the horizontal support frame and facilitates connection with the vertical fixing frame. The measuring rods 203 are made of square steel, each 1m long, with a spacing of 0.6m between adjacent measuring rods. The use of square steel provides sufficient strength and stability for the measuring rods 203. The reference column 202 is made of steel cylinder with a diameter of 280mm. The reference beam 201 and reference column 202, as well as the reference beam 201 and measuring rod 203, are all connected by welding. Welding improves the connection strength at the joints, making the horizontal support frame less prone to deformation or damage during use. The materials of the reference beam 201, measuring rod 203, and reference column 202 ensure that the horizontal support frame as a whole has sufficient strength and stability to support the weight of the entire vertical fixing frame and measuring equipment, and resist external pressure.

[0028] In some implementations, the vertical support frame includes a horizontal support 102 and a vertical support 101. A set of vertical supports 101 is vertically connected to the top middle position of the horizontal support frame. The tops of the set of vertical supports 101 are connected to each other via the horizontal support 102. A positioning hole 104 is provided in the middle part of the horizontal support 102. The positioning hole 104 is on the same vertical axis as the rock mass measuring hole 301, which facilitates the insertion of the probe into the rock mass measuring hole 301 through the positioning hole 104. The positioning hole 104 circumferentially fixes the probe and also ensures the stability of the probe during the measurement process, thereby improving the accuracy of the measurement results.

[0029] Furthermore, the vertical fixing frame also includes triangular steel frames 103. Triangular steel frames 103 are connected between both sides of the vertical support 101 and the top of the reference beam 201. The two triangular steel frames 103 are arranged obliquely to provide support for both sides of the vertical support 101, improving the overall stability of the vertical fixing frame and ensuring the stability of the measurement results. Specifically, in this embodiment, the horizontal support 102 and the vertical support 101 are made of square steel, and the triangular steel frames 103 are made of steel sheets. The vertical support 101 is connected to the horizontal support 102, the triangular steel frames 103 are connected to the vertical support 101, and the triangular steel frames 103 are connected to the reference beam 201 by welding.

[0030] Furthermore, in this embodiment, the diameter of the positioning hole 104 is 76mm, the height of the vertical bracket 101 is 1.5m, and the length of the horizontal bracket 102 is 1.2m.

[0031] The implementation principle of a reference frame for measuring high-pressure deformation tests of rock mass, as described in the following embodiment, is as follows:

[0032] By employing a set of parallel I-beams as reference beams 201, and connecting them with measuring rods 203 made of square steel, a stable grid structure is formed, enhancing the overall rigidity of the horizontal support frame and helping to resist the influence of external environmental factors such as vibration on the measuring equipment. The reference column 202 made of steel cylinder provides a solid foundation support, ensuring that the entire reference frame can be stably installed on the measuring surface.

[0033] The vertical fixing frame, consisting of a horizontal support 102 and a vertical support 101, along with a positioning hole 104 coaxial with the rock mass measuring borehole 301 at its top, ensures that the probe can be accurately aligned with the target position, thereby improving the accuracy of the measurement data. The obliquely arranged triangular steel frame 103 increases the support strength on both sides of the vertical support 101, further enhancing the stability and load-bearing capacity of the vertical fixing frame and reducing the risk of positional deviation caused by external factors.

[0034] By using high-strength steel materials such as I-beams, square steel, and steel sheets to construct key components, the entire frame possesses excellent compressive and bending resistance, enabling it to maintain its structural integrity and functional effectiveness over long periods in harsh environments. The use of standard components like I-beams and square steel in frame construction facilitates transportation and assembly, improving on-site work efficiency and flexibility.

[0035] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A reference frame for measuring high-pressure deformation tests of rock mass, characterized in that, include: A horizontal support frame, set on the measuring surface of the rock mass, can provide support for the measuring equipment used for high-pressure deformation testing of the rock mass on the measuring surface; A vertical fixing frame is vertically installed at the top center of the horizontal support frame. The top of the vertical fixing frame is provided with a positioning hole (104) that corresponds to the rock mass measuring hole (301) on the measuring surface and is on the same axis. The vertical fixing frame is used to fix the measuring head in the measuring equipment.

2. The reference frame for measuring high-pressure deformation tests of rock mass according to claim 1, characterized in that: The horizontal support frame includes a reference beam (201), a measuring rod (203), and a reference column (202). A set of reference beams (201) are arranged horizontally and parallel to each other on both sides above the rock mass measuring hole (301). The reference beams (201) are connected to each other by multiple horizontally arranged measuring rods (203). The measuring rods (203) are arranged at intervals along the axial direction of the reference beams (201). The vertical fixing frame is vertically connected to the middle position of the top of both sides of the reference beams (201). The measuring rods (203) on both sides are symmetrical about the vertical fixing frame. The bottom ends of the reference beams (201) are installed on the measuring surface by vertically arranged reference columns (202).

3. The reference frame for measuring high-pressure deformation tests of rock mass according to claim 2, characterized in that: The reference beam (201) is made of I-beam, the measuring rod (203) is made of square steel, and the reference column (202) is made of steel cylinder.

4. A reference frame for measuring high-pressure deformation tests of rock mass according to claim 1, characterized in that: The vertical fixing frame includes a horizontal support (102) and a vertical support (101). A set of vertical supports (101) is vertically connected to the top middle position of the horizontal support frame. The tops of the set of vertical supports (101) are connected to each other via the horizontal support (102). The horizontal support (102) is provided with the positioning hole (104). The positioning hole (104) and the rock mass measuring hole (301) are on the same vertical axis.

5. A reference frame for measuring high-pressure deformation tests of rock mass according to claim 4, characterized in that: The vertical fixing frame also includes a triangular steel frame (103). The two sides of the vertical support (101) are connected to the top of the horizontal support frame. The triangular steel frame (103) is arranged at an angle to provide support for the two sides of the vertical support (101).

6. A reference frame for measuring high-pressure deformation tests of rock mass according to claim 5, characterized in that: The triangular steel frame (103) is made of steel sheets.

7. A reference frame for measuring high-pressure deformation tests of rock mass according to claim 4, characterized in that: The horizontal support (102) and the vertical support (101) are made of square steel.

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