CAJ | 학술논문

为研究季节性冻土地区冻融循环作用下土工袋防冻融、冻胀效果，对不同冻融循环作用下土工袋和土进行了室内模型试验，在开放系统和封闭系统中分别研究了土工袋和土冻胀量、融沉量之间关系，试验结果表明，经历4次冻融循环作用后，封闭系统中土工袋冻胀量、融沉量分别小于土的冻胀量、融沉量；开放系统中土的冻胀量为土工袋冻胀量的1.9倍，土的融沉量为土工袋融沉量的2.2倍，开放系统中地下水对土工袋的补给量远小于土的补给量，试验验证了土工袋可以有效防止渠道及建筑物基础冻融、冻胀破坏，可为渠道防冻胀提供理论基础。
위연구계절성동토지구동융순배작용하토공대방동융、동창효과，대불동동융순배작용하토공대화토진행료실내모형시험，재개방계통화봉폐계통중분별연구료토공대화토동창량、융침량지간관계，시험결과표명，경력4차동융순배작용후，봉폐계통중토공대동창량、융침량분별소우토적동창량、융침량；개방계통중토적동창량위토공대동창량적1.9배，토적융침량위토공대융침량적2.2배，개방계통중지하수대토공대적보급량원소우토적보급량，시험험증료토공대가이유효방지거도급건축물기출동융、동창파배，가위거도방동창제공이론기출。
In order to reveal anti-frost heaving mechanism of soilbags under different freeze-thaw cycles in seasonally frozen regions, comparative model experiments on soilbags and soil are carried out under different freeze-thaw cycles, to investigate the frost heave relationship and the thawing settlement relationship between soilbags and soil, both in open and close systems. The results show that:Frost heave of soilbags is less than that of soil; thawing settlement of soilbags is also less than that of soil after experiencing 4 freeze-thaw cycles in closed system. Frost heave of soil is 1.9 times that of soilbags;thawing settlement of soil is 2.2 times that of soilbags in open system. Groundwater recharge for soilbags is far less than that for soil in open system. It is concluded that soilbags can efficiently prevent building foundation from frost heave collapse, and it can provide references to frost heave prevention of canal linings.