Design And Implementation Of A New Generation Antarctic Subsurface Rock Drilling Measurement And Control

Antarctica is the oldest continental plate.At present,no country in the world has conducted bedrock drilling and obtained complete bedrock samples in the Gamburtsev Subglacial Mountains in Antarctica.In order to better explore the polar regions,a set of bedrock samples have been developed.The core equipment and successful acquisition of Antarctic bedrock samples will lay the foundation for research that reveals the formation and evolution mechanism of polar ice caps,reconstructs the ancient climate model of the earth,explores ancient life forms of the earth,explores the complex structure at the bottom of ice caps,and geological geology under the ice.This article first introduces the significant scientific significance and value of bedrock drilling for studying the ecology of the earth and crustal movement,and combines the current status and development trends of research at home and abroad,as well as the current technical difficulties facing polar bedrock drilling.The existing technology at home and abroad has been improved,and a new generation of Antarctic sub-ice bedrock drilling measurement and control system has been designed.This system can cooperate with drilling tools,winches and other equipment to drill through the ice cap and directly obtain the base of the Gamburtsev Subglacial Mountains.Rock sample.The design framework of the bedrock drilling project was introduced earlier.According to the actual needs of the bedrock drilling project in Antarctica,the corresponding scheme was analyzed and designed according to the specific parameters.The measurement-while-drilling control system involved in this article is mainly divided into five parts to introduce the composition of the project,followed by the ice surface base monitoring system,the data transmission bus forming a network system,embedded operating system,bedrock measurement-while-drilling control system,and power supply and Energy conversion system.The advantages and disadvantages of the first-generation scheme and the corresponding solutions are analyzed.This article introduces the hardware and equipment debugging,function implementation debugging,low temperature test of the measurement and control system while drilling and the bus communication function test during the preliminary R & D phase;joint function debugging with the Jilin University R & D team in the middle phase,where the load power is insufficient This problem is to optimize and improve the power supply system and adjust the measurement and control cabin while drilling,and to jointly debug the bedrock drilling equipment and evaluate the feasibility of the Antarctic field experiment.In the later stage,the detailed progress of the Antarctic field drilling experiment is mainly introduced.result.The successful test drilling of Antarctic deep ice bedrock in February 2019 and the acquisition of samples of grain snow core,ice core,bedrock core,etc.successfully verified the feasibility and reliability of the bedrock measurement-while-drilling control system designed in this paper.It indicates that China's self-developed polar ice cap and sub-ice bedrock core drilling equipment possesses polar deep ice and sub-ice rock drilling technology capabilities,and that China's independent research and development capabilities in this field have reached the international advanced level.