Device for measuring thickness of natural earth surface covering

Abstract

The utility model discloses a device for measuring the thickness of a natural earth surface covering. The measuring device comprises a cutting ring main body, a reading window is arranged on the side wall of the cutting ring main body; the three reading windows are arranged on the side wall of the cutting ring main body; and the three reading windows are uniformly arranged along the circumferential direction of the cutting ring main body. According to the utility model, the problem that manual excavation type damage monitoring has great influence on the ground surface environment is solved, and the device has small influence on the ground surface; and (3) as a sample is easy to damage and the monitoring speed is very slow in the traditional manual excavation type monitoring, the device provided by the utility model is relatively fast in monitoring, can realize simultaneous monitoring of various earth surface coverings and simultaneous reading of the litter thickness and the crust thickness, and remarkably improves the working efficiency.

Description

Technical Field

[0001] The utility model relates to a thickness measuring device, in particular to a thickness measuring device for natural coverings on the ground surface. Background Art

[0002] Vegetation restoration is one of the important goals of ecological restoration in mining areas. This is because plants are important producers of mining ecosystems and play an important role in carbon sequestration in mining areas. Plants fix carbon dioxide in the air into the plant body through photosynthesis, and the dead branches and leaves of plants are an important source of litter in mining areas. Litter covers the surface, changing the microenvironment of the surface, mainly including the hydrothermal conditions of the surface soil. Changes in hydrothermal conditions are conducive to the increase in the number of microorganisms. Rich microorganisms will change the physical and chemical properties of the soil and can also accelerate the decomposition rate of litter. Litter cover increases the carbon storage in the soil by changing the hydrothermal conditions of the soil and the decomposition of litter. Soil crust can also increase surface cover, reduce the adverse effects of wind erosion and water erosion on surface soil, and promote soil carbon sequestration. However, the survey of surface cover (litter, crust, etc.) in mining areas is generally artificial excavation-type destructive monitoring. This method has a great impact on the surface, the monitoring data is greatly affected by the subjective influence of the measurement personnel, and the error is large. In order to objectively and accurately obtain the thickness of natural cover on the surface of the mining area, appropriate devices are required. Utility Model Content

[0003] The utility model aims to provide a device for measuring the thickness of natural ground cover to solve the problems that artificial excavation-type destructive monitoring has a great influence on the ground surface and the monitoring data is greatly influenced by the subjective influence of the measurement personnel.

[0004] The utility model provides a device for measuring the thickness of natural ground cover, comprising a ring cutter body; wherein:

[0005] A reading window is arranged on the side wall of the ring cutter body.

[0006] In the measuring device of the utility model, three reading windows are provided on the side wall of the ring cutter body;

[0007] Preferably, the three reading windows are evenly arranged along the circumference of the ring cutter body;

[0008] Preferably, the reading window is made of transparent PVC.

[0009] In the measuring device of the utility model, the material of the ring knife body is stainless steel.

[0010] Preferably, the side wall thickness of the ring cutter body is 2 to 3 mm;

[0011] Preferably, the inner diameter of the ring cutter body is 7 to 10 cm.

[0012] Preferably, the height of the ring cutter body is 5 to 8 cm.

[0013] When the measuring device of the ground cover thickness of the utility model is used, three points are selected in each survey sample to measure the cover thickness value, and the average value is calculated as the cover thickness value of the sample. The specific measuring process is as follows:

[0014] Press the main body of the ring knife into the soil by external force, so that the monitored object is as close to the middle of the reading window as possible, and use a shovel to dig out the main body of the ring knife to avoid the soil below the main body of the ring knife from falling and introducing errors. Read the start and end scales of the target object in the three reading windows respectively, and make a difference to obtain the thickness value of each reading window. The average of the thickness values ​​of the three reading windows is taken as the thickness value of the target object at a sample point.

[0015] The utility model has the following beneficial technical effects:

[0016] (1) The problem of artificial excavation-type damage monitoring having a great impact on the surface environment is solved. The device of the utility model has a small impact on the surface;

[0017] (2) The traditional manual excavation monitoring is based on the subjective judgment of the monitored personnel, and the data objectivity is low. The data acquisition method of the utility model device is more objective;

[0018] (3) The traditional manual excavation monitoring is slow because the samples are easily damaged. The monitoring speed of the utility model is faster and can monitor a variety of surface covers at the same time. It can also read the thickness of fallen leaves and crust thickness, which significantly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic diagram of the structure of the device for measuring the thickness of natural surface cover.

[0020] Figure 2 It is a front view of the device for measuring the thickness of natural surface cover of the utility model.

[0021] Figure 3 It is a right side view of the device for measuring the thickness of natural surface cover according to the utility model.

[0022] Figure 4 The utility model is a top view of the device for measuring the thickness of natural surface cover.

[0023] The marks in the figure are as follows:

[0024] 1 ring knife body, 2 reading window. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0026] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations 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 operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] like Figure 1 FIG. 1 is a schematic diagram of the structure of the device for measuring the thickness of natural surface cover provided by the utility model. Figure 2-Figure 4 The utility model is a device for measuring the thickness of natural ground cover, which comprises a ring cutter body 1 made of stainless steel. The side wall of the ring cutter body 1 is provided with three reading windows 2 evenly arranged along its circumference, which are made of transparent PVC, and the reading windows 2 are provided with scale lines.

[0028] In the measuring device of the utility model, the side wall thickness of the ring knife body 1 is 2-3 mm, the inner diameter of the ring knife body 1 is 7-10 cm, and the height of the ring knife body 1 is 5-8 cm.

[0029] The utility model measuring device is used to measure the thickness of the surface fallen leaves and crust in the coal mining subsidence control area:

[0030] 1. Overview of the pilot area

[0031] The test site is located in Zhangjiamao coal mining area, Shenmu City, Yulin City, Shaanxi Province, and a forest land with a reclamation time of 1 year was selected for coal mining subsidence control.

[0032] 2. Sample site survey

[0033] The reclaimed sample plots in the mining area were investigated, and the contents of the investigation included: the thickness of the surface litter and the thickness of the surface crust.

[0034] 3. Measurement process

[0035] Press the ring knife body 1 into the soil by external force, make the monitored object as close to the middle of the reading window as possible, and use a shovel to dig out the ring knife to avoid the soil below the ring knife from falling and introducing errors. Read the start and end scales of the target object in the three reading windows respectively, make a difference to get the thickness value of each reading window, and calculate the average of the thickness values ​​of the three reading windows as the thickness value of the target object at a sample point.

[0036] The survey results are shown in Table 1. The thickness of the surface litter is 0.03 cm and the thickness of the surface crust is 3.7 mm.

[0037] Table 1 Monitoring of surface litter and crust thickness

[0038] Thickness of litter on the ground (cm) Surface crust thickness (mm) Reading Window 1 0 3 Reading Window 2 0 4 Reading Window 3 0.1 3 Mean 0.03 3.7

[0039] The thickness of the surface cover in the ecological survey of the mining area implemented by the utility model has the following advantages: (1) It solves the problem that the manual excavation-type destructive monitoring has a great impact on the surface environment. The utility model device has a smaller impact on the surface; (2) Traditional manual excavation-type monitoring is subject to the subjective judgment of the monitored personnel and the data objectivity is low. The data acquisition method of the utility model device is more objective; (3) Traditional manual excavation-type monitoring is very slow because the samples are easily destroyed. The utility model device monitors faster and can realize the simultaneous monitoring of multiple surface covers, and read the thickness of fallen leaves and the thickness of crust at the same time, which significantly improves work efficiency.

Claims

1. A device for measuring the thickness of natural ground cover, comprising a ring cutter body; characterized in that: A reading window is provided on the side wall of the ring cutter body; Three reading windows are provided on the side wall of the ring cutter body; The three reading windows are evenly arranged along the circumference of the ring cutter body; The reading window is made of transparent PVC; The material of the ring cutter body is stainless steel; The side wall thickness of the ring cutter body is 2 to 3 mm; The inner diameter of the ring cutter body is 7 to 10 cm; The height of the ring cutter body is 5 to 8 cm.

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