CAJ | 학술논문

输水渠道冻胀破坏是寒冷地区渠道破坏的主要表现。研制了一套在土工离心机中进行渠道冻胀模拟的试验设备，该设备主要包括冻融模型箱、循环冷却水系统、测量控制系统等组成。冻融模型箱采用内外两层结构，中间填充保温材料。循环冷却水系统采用12组半导体制冷片，利用其帕尔贴效应实现制冷/热。采用高压水泵驱动水流并结合风冷散热器，持续为制冷器循环冷却，实现了在离心机不具备水旋转接头下的循环水利用。开发了直流回弹式位移测量系统的安装装置，保证了测量系统的准确。利用该设备进行了北疆地区输水渠道的冻胀模拟，试验结果规律好，可以正确的模拟冻胀温度场和位移场。渠道冻胀离心模型试验设备的研制为寒冷地区输水渠道冻胀问题的研究提供了有力工具。
수수거도동창파배시한랭지구거도파배적주요표현。연제료일투재토공리심궤중진행거도동창모의적시험설비，해설비주요포괄동융모형상、순배냉각수계통、측량공제계통등조성。동융모형상채용내외량층결구，중간전충보온재료。순배냉각수계통채용12조반도체제랭편，이용기파이첩효응실현제랭/열。채용고압수빙구동수류병결합풍랭산열기，지속위제랭기순배냉각，실현료재리심궤불구비수선전접두하적순배수이용。개발료직류회탄식위이측량계통적안장장치，보증료측량계통적준학。이용해설비진행료북강지구수수거도적동창모의，시험결과규률호，가이정학적모의동창온도장화위이장。거도동창리심모형시험설비적연제위한랭지구수수거도동창문제적연구제공료유력공구。
Frost-heave damage is the main reason for the channels in seasonal frozen regions. A new device is developed for simulating the frost-heave phenomenon of channels. It mainly includes the freeze-thaw model container, the circulating cooling water system and the measurement control system. The freeze-thaw model container consists of internal and external structures, and thermal insulation materials are filled between them. The circulating cooling water system adopts 12 groups of semiconductor chilling plates, and cooling or heating is accomplished by the Peltier effects. The high-pressure pump combined with the air cooling radiator realizes a continuous cooling for the system without hydraulic rotating joints. The installation device for the direct rebound displacement sensors is developed to ensure the accurate measurement. The whole device is used to study the frost-heave damage of a channel. The test results show a good regularity with correct simulation of both the temperature and displacement fields, indicating that this facility is effective for the simulation tests on frost-heave of channels.