寒区工程冻害预报与控制  

Predication and Control of Frost Damage to Engineering Works in Cold Regions

作　　者：陈肖柏[1] 王雅卿[1] 

机构地区：[1]中国科学院兰州冰川冻土研究所

出　　处：《人民黄河》1990年第6期51-56,共6页Yellow River

摘　　要：冻胀是季节冻土区工程冻害的主要原因,而冻胀率η及冻胀速率R是反映地基土或土工构筑物冻胀敏感性强弱的指标。根据试验研究结果。本文提出了适用于季节冻土区的冻胀率及冻胀速率的综合预报模型,并初步讨论了各地工程如何根据其所处的自然条件,限制或改变其中某些冻胀要素,使之尽量减轻甚至消除冻害的措施。Frost heave of soils is a main reason for producing frost damage to engineer ing works in seasonal frost regions. Frost heave ratio η and rate R are the indexes of frost susceptibility of soils used as foundation soil or material of civil works. Based on the experimental results produced by the authors, the prediction models with multi-factors for frost heave ratio η and rate R have been proposed in this paper. In addition, in order to reduce the frost damage to engineering works as much as possible, the ways to control effectively some factors in situ have been discussed preliminarily.

关 键 词：寒冷地区 建筑物 冰情 预报 控制 

分 类 号：P338.4[天文地球—水文科学]