摘要
哈达山水利枢纽工程处于冻土地区,解决防冻、抗冻以消除结构变形破坏被列为首要问题。试验证明,采用渠道保温防冻能有效解决冻土区土体冻胀问题,对于提高工程质量,延长工程寿命有着举足轻重的作用。本论文根据现场铺设不同厚度保温板,经过1个冻结周期的实地观测,总结了不同厚度保温板对减少渠道冻胀、改善渠道温度的影响,大大地提高基底温度。通过现场试验,为本地区其它渠道提供合理的设计方案及合理聚苯乙烯保温板厚度,能较大程度地改善渠道冻胀现象。
hydro-junction of Hada mountain is in the frozen soil region,solving antifreeze to eliminate structure deformation failure is the primary problem.By experimental proof,using channel insulating and antifreezing can effectively solve the problem of soil frost heaving,and play a very important role in improving engineering quality and prolonging engineering life.In this paper,through a freezing period of field observations,according to the site laying insulation board of different thickness has greatly effect on reducing channel frost heave and improving channel temperature,Increased substrate temperature and provide reasonable design scheme and reasonable thickness of polystyrene board for other channels in this region,thus in greatly degree can improve channel frost heave phenomenon.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
北大核心
2010年第4期209-213,共5页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
