TELEMETRY SYSTEM FOR DETERMINING THE COORDINATES OF THE PIERCING HEAD IN THE GROUND
Journal Title: Вестник Харьковского национального автомобильно-дорожного университета - Year 2019, Vol 84, Issue
Abstract
When forming horizontal wells with the method of static soil puncture for trenchless engineering com-munications under obstacles with a span of more than 15– 20 m, it becomes necessary to correct the trajectory of the piercing working body with a tradi-tional conical tip. It has been established that if the shape of the tip of the piercing head can be changed and rotated promptly, then it will be possible to cor-rect the trajectory of its movement in the soil. The process of movement of the working body and the change of its position in space by quickly changing the shape of the tip is shown in the diagram (Fig. 1). The solution of this issue will allow to increase the guaranteed accuracy of well formation and expand the scope of application of the highly efficient method of static soil puncture from the span dis-tance between 15–20 m and 100 m. In the proposed system, the transmission of information is carried out using Wi-Fi modules [13–15], which are located both inside the drilling head and at the receiving device on the ground surface. When using a trans-ceiver in the form of Wi-Fi modules, the communica-tion line can be of three types. The first type is the above-mentioned traditional communication line in the form of a multilayer electromagnetic radiation propagation medium carrying information about the coordinates of the drill head. The second type can be a waveguide transmission line, in which a hollow metal rod of a static-action installation can be used as a circular waveguide connecting the transmitting and receiving parts of the system to which the drill-ing head is connected. The third type of communica-tion line may be a coaxial cable, which is pulled inside the hollow metal rod. The degree of attenua-tion of the informational electromagnetic signal in these communication lines depends on the electro-physical parameters of the soil, the depth of the pipes laid in the soil, the diameter and length of the pipes. Therefore, for reliable reception of the infor-mation signal, the method of transmitting infor-mation with a particular line of communication is chosen. The research conducted in the form of Wi-Fi modules with a transmitting device in the form of Wi-Fi modules confirmed the practical possibility of creating a simpler and more energy-saving measur-ing system for determining the spatial coordinates of the piercing head when forming a well for trenchless installation of underground utilities.
Authors and Affiliations
V. Suponyev, Ye. Chepusenko
Keywords
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- EP ID EP545560
- DOI 10.30977/BUL.2219-5548.2019.84.0.13
- Views 88
- Downloads 0
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