CAJ | 학술논문

河源市水源工程输水管线由引水隧洞、主管线、南支线及北支线组成，引水隧洞地质勘察成为该工程重点。引水隧洞围岩由花岗岩和砂岩组成，在长约1.84 km隧洞中花岗岩围岩约为1.67 km，比重占91％，砂岩围岩占9％，准确查明围岩特性是确保整条隧洞顺利贯穿关键。通过对引水隧洞所在区域地质资料收集，开展野外地质调查、测绘、钻探、室内外试验以及现场超声波测试等手段，分析地质构造情况，查明隧洞围岩分布范围，提出隧洞围岩物理力学指标，并对隧洞进口、中部、出口处围岩进行地质分类与评价，提出防护措施，为工程实践提供重要指导作用。
하원시수원공정수수관선유인수수동、주관선、남지선급북지선조성，인수수동지질감찰성위해공정중점。인수수동위암유화강암화사암조성，재장약1.84 km수동중화강암위암약위1.67 km，비중점91％，사암위암점9％，준학사명위암특성시학보정조수동순리관천관건。통과대인수수동소재구역지질자료수집，개전야외지질조사、측회、찬탐、실내외시험이급현장초성파측시등수단，분석지질구조정황，사명수동위암분포범위，제출수동위암물리역학지표，병대수동진구、중부、출구처위암진행지질분류여평개，제출방호조시，위공정실천제공중요지도작용。
The water-transmission line in water source engineering of Heyuan city is made up of diversion tunnel, the head line, south branch and north branch of diversion tunnel.And geological survey is the focus of this project.Surrounding rock of diversion tunnel is composed of granite and sandstone, and granite in the about 1.84 km long tunnel surrounding rock is about 1.67 km, and the proportion is 91%; Finding out the characteristics of surrounding rock is the key.Through geological data collection of the diversion tunnel area, testing measures have been carried out, such as field geological investigation, surveying and mapping, drilling, indoor and outdoor tests and ultrasonic testing, etc.and the geological structure and distribution range have been analyzed, then the tunnel surrounding rock physical and mechanical index has been put forward, at last, geological classification and evaluation have been made for the entrance, central part, and the exit of the tunnel surrounding rock, and protection measures have been put forward.It can be provided as important guidance for engineering practice.