粉细砂夹层软粘土地基直接建造大型油罐的固结处理
Solidity Treatment of Soft Soil Foundation with Intercalated Bed of Fine Sand for Construction of Large Oil Tank
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- DOI:
- 作者:
- 贾庆山
Jia Qingshan
- 作者单位:
- 上海高桥石油化工设计院 201208 上海市浦东新区
Shanghai
- 关键词:
- 大型;油罐;粉砂;夹层;地基;处理
Large scale;Oil tank Silt;Intercalation;Ground foundation;Disposal
- 摘要:
- 本文介绍上海浦东的软土地基上直接建造大型油罐的地基处理方法。利用软粘土央有粉细砂薄层可产生水平向渗透固结的特性，采取向罐内分级充水预压的方法，约需SOd时间，使地基承载力由60kPa提高到210kPa，并以实测孔隙水压力增量小于加行增量的60%为加行预压的控制标准，从而保证了地基的稳定性。
This article introduces a foundation treatment method of soft soil foundation on which a large oil tank is set in pu Dong of Shanghai. This method takes the character of horizontal directional osmosis solidity occured in soft soil with intercalated bed of fine sand. Therefore a method called pre-pressure of gradually filling water into tank is used. The water filling lasts 5O days long to increase the foundation bearing load from 60 kPa to 210 kPa. The contro1 standard of pre-pres sure is to keep the increment of the measured water pressure in pore less than 6O% of the incre ment of the filling water load to ensure stability of the foundation thereby.1997,4(4): 25-29 收稿日期：1997-1-16参考文献：
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2 Jia Qingshan: Low-cost ground improvement large oil storage tank on slft ground. Proc Conf of Low-cost ener-gy saving construction materials vol Rio de Janeiro. Brazil，9-12 July 1984
3 Jia Qingshan: Stability Control of Large Petroleum Storage Tanks in Soft ClayDeposits Other Environments. Proc Conf of Interbational Symposium on Environmental Geotechnology. Vo12, Bethlethem, PA. USA, 1986
4 贾庆山.大型油罐软土地基容许倾斜值.岩土工程学报，1991，13 (1)
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