前湾港工作船港池防波堤现场试验与分析

作者：曾锡庭

单位： 天津港湾工程研究所

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出版年,卷(期):页码：1992,16(2):28-38

摘要：

本文介绍了青岛前湾港防波堤现场施工监测及土工织物垫层作用机理的探索性试验。试验结果表明:防波堤自-5.0m一次抛填至+2.50m后,只需7个月固结期即可施加堤顶削角方块,使固结期缩短到原设计期的1/3。另外,防波堤堤基铺设土工织物垫层后,可提高地基的刚度,均化应力,减少沉降,限制侧向位移,并使最大侧向位移向深处转移,从而缩小了地基塑性区,提高了堤基土体的整体稳定。

The paper is concerned with the field observation of the breakwater in Qianwan Port, Qingdao and the exploratory tests for the mechanism of geotextile filters used in the breakwater. The results of the field observation and the exploratory test showed that, after the core material was placed from -0.5m upto +2.50m, it required only seven months to consolidate when cornerless concrete blocks were placed on the top of the breakwater, thus the consolidation period was reduced to 1/3 of the designed consolidation period. Moreover, when geotextile filters are used on the subgrade of a breakwater, the rigidity of the subgrade can be improved, the stress of the subgrade can be homogenized, the settlement of the subgrade can be much reduced, the lateral displacement can be restricted and the maximum lateral displacement can be shifted into deeper soil, thus minimizing the plastic zone of the subgrade and improving the overall stability of the subgrade.

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