A positioning reflector for downhole control measurement
By designing a positioning reflector for underground control measurement, the accuracy and efficiency problems of traditional traverse measurement when the wind speed in the roadway are high have been solved, achieving the effect of simplifying the measurement process and improving efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINCHUAN GROUP NICKEL COBALT CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-26
AI Technical Summary
In traditional underground traverse surveying methods, when the wind speed in the roadway is high, the plumb line and the plumb bob are prone to swinging, which affects the measurement accuracy and efficiency, and increases the instrument setup time.
Design a positioning reflector for downhole control measurement, including a base pile and a reflective panel. The reflective panel is divided into a mirrored upper half and a lower half, and is equipped with a reflective substrate, a circular target line and a crosshair, to simplify the measurement process and improve accuracy.
It saves on prism leveling and centering steps, improves measurement efficiency, reduces the impact of wind on measurement work, and has the ability to quickly locate target points in dim environments.
Smart Images
Figure CN224285936U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of downhole measurement equipment, and relates to a positioning reflector for downhole control measurement. Background Technology
[0002] In underground roadways, traverse surveying is typically used to transfer the positions of basic control points to the vicinity of the required working face. Traditional traverse surveying involves placing traverse points on the roadway roof and setting up instruments and prism devices below them. A drawback of this method is that when wind speeds are high in the roadway, the plumb line and plumb bob will swing, affecting the accuracy of the traverse survey and increasing the time required to set up the instruments. Furthermore, with the widespread use of underground scanners, several three-dimensional control points need to be deployed on both sides of the roadway. Therefore, to improve the accuracy of traverse surveying and three-dimensional control points, as well as the efficiency of surveying operations and reduce workload, it is necessary to provide a positioning reflector for underground control surveying to solve the aforementioned technical problems. Utility Model Content
[0003] The purpose of this invention is to address the problems existing in the prior art by providing a positioning reflector for underground control measurement. This solves the problem that, when the wind speed in the roadway is high, the plumb line and hammer ball in the traditional traverse measurement method are prone to swinging, which affects the accuracy of traverse measurement, increases the time required to set up the instrument, and leads to low work efficiency.
[0004] Therefore, the present invention adopts the following technical solution:
[0005] A positioning reflector for downhole control measurement includes a base pile, a reflector panel on the top of the base pile, the reflector panel being vertically arranged and including an upper half and a lower half arranged in a mirror image, the upper half of the reflector panel having a reflector substrate, the lower half being connected to the base pile through a sleeve, and a circular target line and a crosshair line being provided at the center of the reflector panel.
[0006] Furthermore, the upper and lower halves of the reflective panel are identical in shape and size.
[0007] Furthermore, both the upper and lower halves of the reflective panel are trapezoidal.
[0008] Furthermore, the reflective substrate is triangular in shape, and it is joined with the upper half of the reflective panel to form a complete triangle.
[0009] Furthermore, the center of the circular target line is located at the junction of the upper and lower halves of the reflective panel.
[0010] Furthermore, the center of the crosshair is located at the junction of the upper and lower halves of the reflective panel.
[0011] The beneficial effects of this utility model are as follows:
[0012] This invention saves on prism leveling and centering steps during use, simplifies measurement procedures, reduces the workload of measurement personnel, improves work efficiency, and reduces the impact of wind on measurement work. Moreover, this invention can quickly locate target points in dim environments. It features a compact structure and strong practicality, making it convenient for downhole control measurement and three-dimensional control point positioning. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] In the diagram, 1-reflective substrate, 2-circular target line, 3-reflective panel, 4-cross reticle, 5-sleeve, 6-foundation pile, 7-bedrock. Detailed Implementation
[0015] The technical solution of this utility model will be described below with reference to the accompanying drawings and implementation methods.
[0016] like Figure 1 As shown, a positioning reflector for downhole control measurement includes a foundation pile 6, the bottom of which is inserted into bedrock 7. Specifically, the foundation pile 6 is made of stainless steel nails with specifications of KD8-30-35S8. A reflective panel 3 is provided on the top of the foundation pile 6. The reflective panel 3 is vertically arranged and includes an upper half and a lower half that are mirror images of each other. Specifically, both the upper half and the lower half of the reflective panel 3 are trapezoidal.
[0017] The upper half of the reflective panel 3 is provided with a reflective substrate 1, and the lower half is connected to the base pile 6 through a sleeve 5. Specifically, the reflective substrate 1 is triangular, and it and the upper half of the reflective panel 3 are spliced together to form a complete triangle. The reflective substrate 1 is made of acrylic sheet with a thickness of 0.8mm. The sleeve 5 is made of transparent acrylic tube with an outer diameter of 9mm and a length of 20mm.
[0018] The reflective panel 3 has a circular target line 2 and a crosshair 4 at its center; the center of the circular target line 2 is located at the junction of the upper and lower halves of the reflective panel 3, and the center of the crosshair 4 is located at the junction of the upper and lower halves of the reflective panel 3.
[0019] When this invention is applied to control conductor measurement, its usage process is as follows:
[0020] First, drive the foundation pile 6 into the bedrock 7 of the tunnel floor as the reference point for the traverse. Use any one of the reference points as the station and set up the total station. Next, assemble the reflective base plate 1, reflective panel 3, and sleeve 5 with the foundation pile 6 to serve as the reference point for the forward and backward sights. Finally, use the total station to aim at the crosshair 4 and measure, thus completing the control traverse measurement process.
[0021] This invention can also be applied to trigonometric leveling and three-dimensional control point measurement, and its usage process is the same as the above method.
Claims
1. A positioning reflector for downhole control and measurement, characterized in that, Includes a foundation pile (6), the top of which is provided with a reflective panel (3), the reflective panel (3) is vertically arranged, and includes an upper half and a lower half arranged in a mirror image. The upper half of the reflective panel (3) is provided with a reflective substrate (1), and the lower half is connected to the foundation pile (6) through a sleeve (5). The center of the reflective panel (3) is provided with a circular target line (2) and a crosshair (4).
2. A positioning reflector for downhole control measurement according to claim 1, characterized in that, The upper and lower halves of the reflective panel (3) are identical in shape and size.
3. A positioning reflector for downhole control measurement according to claim 2, characterized in that, The upper and lower halves of the reflective panel (3) are both trapezoidal.
4. A positioning reflector for downhole control measurement according to claim 3, characterized in that, The reflective substrate (1) is triangular, and it is joined with the upper half of the reflective panel (3) to form a complete triangle.
5. A positioning reflector for downhole control measurement according to claim 1, characterized in that, The center of the circular target line (2) is located at the junction of the upper and lower halves of the reflective panel (3).
6. A positioning reflector for downhole control measurement according to claim 1, characterized in that, The center of the crosshair (4) is located at the junction of the upper and lower halves of the reflective panel (3).