Rock mass quality index rapid measuring device

Abstract

The utility model discloses a rock mass quality index rapid measuring device, which relates to the technical field of rock mass engineering, and comprises a ruler-shaped shell, a plurality of identification lamps are arranged along the length direction of the ruler-shaped shell at equal intervals, each identification lamp is controlled by a button in a pressing manner and is provided with a unique number, and the ruler-shaped shell is provided with a plurality of through holes. The identification lamps are connected in parallel through a circuit board arranged in the ruler-shaped shell, and a display controller is further integrated on the circuit board. When the button is pressed down, the corresponding identification lamp is turned on, the corresponding number is sent to the display controller through the circuit board, and the display controller is electrically connected with the display screen installed on the ruler-shaped shell and used for sending the rock mass quality index obtained through calculation to the display screen to be displayed. According to the utility model, the problem that the RQD on the rock mass engineering site is difficult to quickly and accurately determine is solved, the accurate RQD value is obtained, the rock mass quality scoring is further more accurately carried out, and the rock mass engineering design and construction are guided.

Description

Technical Field

[0001] The utility model relates to the field of rock mass engineering technology, in particular to a rock mass quality index rapid measurement device. Background Art

[0002] Since Deere proposed the rock quality designation (RQD) as a quality evaluation index for rock mass classification in 1963, it has been widely used in rock mass stability evaluation in water conservancy and hydropower, mining, underground engineering, transportation engineering, etc., because of its simple calculation and as a function of crack spacing and density, it basically reflects the physical and mechanical properties of rock mass connectivity, permeability, compressibility, etc., and can quantitatively reflect the integrity of engineering rock mass; in addition, it is also related to seismic wave velocity.

[0003] RQD reflects the degree to which the rock mass is cut by various structural planes. As a key indicator in international mainstream engineering rock mass classification methods such as the RMR system and the Q system, RQD is generally determined by coring, and is calculated as the percentage of the cumulative length of the core equal to or greater than 10 cm in the core to the total length of the drilling footage. Most rock mass engineering RQD calculations do not have coring conditions, and are mainly estimated based on the empirical formula of RQD and volume joint number Jv. The accuracy of the empirically calculated Jv is difficult to guarantee, which further affects the accuracy of RQD. Therefore, how to accurately and conveniently measure and calculate the RQD value is crucial for rock mass quality evaluation. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a rock quality index rapid measurement device to solve the problem of rapid and accurate determination of RQD on-site in rock engineering, obtain accurate RQD value, further more accurately perform rock quality scoring, and guide rock engineering design and construction.

[0005] The purpose of the utility model is achieved through the following technical solutions: this rock mass quality index rapid measurement device includes a ruler-shaped shell, and a plurality of identification lights are arranged at equal intervals along the length direction of the ruler-shaped shell, each identification light is controlled by pressing a button, and has a unique number (from 0, 1, 2, 3, ... to m, m ≥ 100), and each identification light is connected in parallel through a circuit board built into the ruler-shaped shell, and a display controller is also integrated on the circuit board; when the button is pressed, the corresponding identification light lights up, and the corresponding number is sent to the display controller through the circuit board, and the display controller is electrically connected to a display screen installed on the ruler-shaped shell, and is used to send the calculated rock mass quality index to the display screen for display.

[0006] As a further technical solution, two operation buttons electrically connected to the display controller are arranged on the ruler-shaped shell below the display screen, namely a calculation button and a reset button. The calculation button is used to send a calculation signal to the display controller to display the calculated rock quality index through the display screen, and the reset button is used to send a clear signal to the display controller to clear the result displayed on the display screen.

[0007] As a further technical solution, the number of the identification lights and their corresponding numbers is greater than 100, and the length of the ruler-shaped housing is greater than 1m.

[0008] As a further technical solution, a battery box is arranged in the ruler-shaped housing to supply power to the circuit board.

[0009] The beneficial effects of the utility model are:

[0010] 1. Identification lights are set at equal intervals along the length of the ruler-shaped shell. The location of the rock structure surface is marked by the identification lights, and multiple locations on the rock mass (tunnel face) can be measured to achieve rapid acquisition of RQD values;

[0011] 2. After the display controller obtains the number of the identification lamp, press the calculation button to automatically calculate the RQD value and automatically display it on the display screen. It is easy to operate and has wide applicability. It can be used in multiple engineering fields such as rock slopes and underground caverns; thus more accurately evaluating rock quality and guiding engineering design and construction;

[0012] 3. The number of identification lights and their corresponding numbers is greater than 100, the length of the ruler-shaped shell is greater than 1m, the measurement range is wider, and the applicability is good;

[0013] 4. A battery box is set inside the ruler-shaped shell to supply power to the circuit board. The built-in battery box does not require external power supply, which is convenient for outdoor measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the assembly structure of the display controller and the circuit board in the utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the utility model when performing measurement.

[0017] Explanation of reference numerals: ruler-shaped housing 101 , identification light 102 , display controller 103 , display screen 104 , operation key 105 , button 106 , number 107 , circuit board 201 , battery box 202 , tunnel face 301 , tunnel face joint 302 . DETAILED DESCRIPTION

[0018] The utility model will be described in detail below with reference to the accompanying drawings:

[0019] Example: As shown in the attached Figures 1 to 3 As shown, the rock mass quality index rapid measurement device includes a ruler-shaped housing 101, an identification light 102, a display controller 103, a display screen 104, an operation key 105, a button 106, a number 107, a circuit board 201, a battery box 202, a tunnel face 301 and a tunnel face joint 302.

[0020] Reference Figure 1 , a number of identification lights 102 (two hundred and one in this embodiment, or other numbers) are arranged at equal intervals along the length direction of the ruler-shaped housing 101 (preferably made of plastic material), each identification light 102 is controlled by pressing a button 106, and has a unique number 107 (numbered from 0 to 200, a total of two hundred and one, corresponding to the number of identification lights 102). A circuit board 201 is set in the ruler-shaped housing 101, and each identification light 102 is connected in parallel with the circuit board 201 after being electrically connected. A display controller 103 (which can be a PLC controller available on the market) is also integrated on the circuit board 201. When the button 106 is pressed, the corresponding identification light 102 is immediately lit, and the number 107 corresponding to the identification light 102 is sent to the display controller 103 through the circuit board 201. The display controller 103 is electrically connected to the display screen 104 installed on the ruler-shaped housing 101, and can send the calculated rock mass quality index to the display screen 104 for display.

[0021] Furthermore, two operation buttons 105 electrically connected to the display controller 103 are provided on the ruler-shaped housing 101 below the display screen 104, which are a calculation button and a reset button. The calculation button can send a calculation signal to the display controller 103 to display the calculated rock mass quality index through the display screen 104, and the reset button can send a clear signal to the display controller 103 to clear the result displayed on the display screen 104.

[0022] Preferably, the number of the identification lights 102 and their corresponding numbers 107 is greater than 100 (two hundred and one in this embodiment), the spacing between each identification light 102 is 1 cm, and the length of the ruler-shaped housing 101 is greater than 1 m (in this embodiment, the length of the ruler-shaped housing 101 is greater than 2 m), so the measurement range is wider and the applicability is good. A battery box 202 is set in the ruler-shaped housing 101, which can supply power to the circuit board 201, without external power supply, and is convenient for outdoor measurement.

[0023] Furthermore, the display controller 103 has a built-in RQD value algorithm, performs RQD calculation operation through the rock quality index (RQD) measurement operation button, and displays the corresponding RQD value on the rock quality index (RQD) display screen. i ,i=1,2,3,…,k, the RQD calculation formula is as follows:

[0024]

[0025] In the above formula (l i+1 -l i ) is greater than 0.1m in length.

[0026] The working process of this utility model: Figure 3 As shown, the steps of using the device to measure the rock quality index (RQD) at a certain position of the tunnel face 301 are as follows:

[0027] S1: Determine the measurement location. You can select multiple locations for measurement.

[0028] S2: Press the reset button to initialize;

[0029] S3: Light up the indicator light 102 that intersects the joint 302 of the tunnel face. In a certain actual measurement, the number 107 corresponding to the indicator light 102 pressed is 18, 25, 26, 27, 38, 78, 98, 132, 141, 176, 199. Then press the calculation button, and the corresponding RQD is calculated as follows:

[0030]

[0031] The corresponding RQD value, 90.05%, is displayed on display screen 104 .

[0032] The utility model provides a rock mass quality index (RQD) rapid measurement device, which uses a marker lamp to mark the position of the rock mass structure surface, and further realizes the rapid acquisition of the RQD value. It is easy to operate and has wide applicability. It can be used in multiple engineering fields such as rock mass slopes and underground caverns. In this way, the rock mass quality can be evaluated more accurately and the engineering design and construction can be guided.

[0033] It is understandable that, for those skilled in the art, any equivalent replacement or change to the technical solution and the concept of the utility model should fall within the protection scope of the claims attached to the utility model.

Claims

1. A rapid measurement device for rock mass quality indicators, characterized in that: The invention comprises a ruler-shaped housing (101), a plurality of identification lights (102) are arranged at equal intervals along the length direction of the ruler-shaped housing (101), each identification light (102) is controlled by pressing a button (106) and has a unique number (107), each identification light (102) is connected in parallel via a circuit board (201) built into the ruler-shaped housing (101), and a display controller (103) is also integrated on the circuit board (201); when the button (106) is pressed, the corresponding identification light (102) lights up, and sends the corresponding number (107) to the display controller (103) via the circuit board (201), and the display controller (103) is electrically connected to a display screen (104) installed on the ruler-shaped housing (101) for sending the calculated rock mass quality index to the display screen (104) for display.

2. The rock mass quality index rapid measurement device according to claim 1 is characterized in that: Two operation buttons (105) electrically connected to the display controller (103) are arranged on the ruler-shaped housing (101) below the display screen (104), which are a calculation button and a reset button. The calculation button is used to send a calculation signal to the display controller (103) to display the calculated rock mass quality index on the display screen (104), and the reset button is used to send a reset signal to the display controller (103) to clear the result displayed on the display screen (104).

3. The rock mass quality index rapid measurement device according to claim 1 is characterized in that: The number of the identification lights (102) and their corresponding numbers (107) is greater than 100, and the length of the ruler-shaped housing (101) is greater than 1 m.

4. The rock mass quality index rapid measurement device according to claim 1 is characterized in that: A battery box (202) is arranged inside the ruler-shaped housing (101) for supplying power to the circuit board (201).

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