| 超载压力对浅基础冻胀的影响 |
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| 引用本文： | 童长江,俞崇云.超载压力对浅基础冻胀的影响[J].冰川冻土,1990,12(3):193-199. |
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| 作者姓名： | 童长江 俞崇云 |
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| 作者单位： | 中国科学院兰州冰川冻土研究所
(童长江)，中国科学院兰州冰川冻土研究所(俞崇云) |
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| 摘 要： |
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| 关 键 词： | 冻土 冻胀 荷载 基础 |
The Effect of Surcharge on the Frost Heaving of Shallow Foundations |
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| Tong Changjiang and Yu Chongyun.The Effect of Surcharge on the Frost Heaving of Shallow Foundations[J].Journal of Glaciology and Geocryology,1990,12(3):193-199. |
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| Authors: | Tong Changjiang and Yu Chongyun |
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| Abstract: | In order to meet the requirement for the design of shallow foundations of light building in seasonal frost areas, the authors studied the effect of lightpressure (<200 kPa) on frost heaving through in-situ tests, the test results show that the total amountof frost heaving decreases with increasing pressure. It can be reduced by 44-52% in the high frost susceptible soils when the pressure is equal to 200 kPa. The effective denth of frost heaving beneath foundationsincreases with increasing pressure. It is about 80 cm when the pressure is equal to 150-200 kPa. Accordign to the test results, the influence coefficdients of surchange on frost heaving for various kinds frost susceptible soils are given which can be used to estimate the attenuation of frost heaving of subsoils. |
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| Keywords: | clay foundation frost heave insitu testing seasonal frost |
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