| 旋喷桩在码头升级改造中的应用 |
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| 引用本文： | 仝成才,孔令学. 旋喷桩在码头升级改造中的应用[J]. 水运工程, 2019, 0(4): 200-204 |
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| 作者姓名： | 仝成才 孔令学 |
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| 作者单位： | 中交天津港湾工程设计院有限公司大连分公司，辽宁 大连 116000,大连港口设计研究院有限公司，辽宁 大连 116023 |
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| 摘 要： | 针对旋喷桩在边坡稳定中的设计及应用问题，结合某码头升级改造采用旋喷桩加固为例，通过对PLAXIS基于强度折减法和GEO-SLOPE两种计算方法的分析对比，提出采用PLAXIS计算更适用于旋喷桩加固的边坡。根据现场取样试验结果得知，粉质黏土中的旋喷桩体抗压强度平均值可达6 MPa，内摩擦角平均值约30°，黏结力平均值约0.5 MPa，满足设计要求。因此，旋喷桩的设计在码头升级改造中的应用是合理的。
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| 关 键 词： | 升级改造；旋喷桩；强度折减法；边坡稳定 |
Application of jet grouting piles in upgrading and renovation of quay |
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| TONG Cheng-cai and KONG Ling-xue. Application of jet grouting piles in upgrading and renovation of quay[J]. Port & Waterway Engineering, 2019, 0(4): 200-204 |
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| Authors: | TONG Cheng-cai and KONG Ling-xue |
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| Affiliation: | Dalian Branch Company of Tianjin Port Engineering Design & Consulting Co.,Ltd.,of CCCC,Dalian 116000,China and Dalian Port Design & Research Institute Co.,Ltd.,Dalian 116023,China |
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| Abstract: | For the design and application of the jet grouting pile in stabilizing the slope,combining with the upgrading of a wharf using the jet grouting pile reinforcement,we compare the PLAXIS based on the strength reduction method and the GEO-SLOPE calculation method,and propose the PLAXIS for the slope strengthening by the jet grouting pile,which is more adaptable.According to the results of on-site sampling test,the average compressive strength of the jet grouting pile in silty clay can reach 6 MPa,the average internal friction angle is about 30°,and the average value of the cohesive force is about 0.5 MPa,which meets the design requirements.Therefore,the application of the jet grouting pile in the upgrading of the wharf is reasonable. |
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