Optimization Analysis of Settlement Parameters for Postgrouting Piles in Loess Area of Shaanxi, China
The settlement calculation of postgrouting piles is complex and depends on the calculation method and parameters. Static load tests were conducted to compare the settlement characteristics of nongrouting and postgrouting piles, and three vital parameters in the layer-wise summation method were revis...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/7085104 |
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| author | Zhijun Zhou Shanshan Zhu Xiang Kong Jiangtao Lei Tong Liu |
| author_facet | Zhijun Zhou Shanshan Zhu Xiang Kong Jiangtao Lei Tong Liu |
| author_sort | Zhijun Zhou |
| collection | DOAJ |
| description | The settlement calculation of postgrouting piles is complex and depends on the calculation method and parameters. Static load tests were conducted to compare the settlement characteristics of nongrouting and postgrouting piles, and three vital parameters in the layer-wise summation method were revised to predict the settlement of postgrouting piles. The elastic compression coefficient was deduced based on the Mindlin–Geddes method by considering the influence of the change in the pile side resistance distribution and end resistance ratio on the elastic compression after grouting. The relationship between the compression modulus and soil gravity stress and cone penetration resistance were established, respectively, using experimental data. The optimum value of the settlement empirical coefficient was determined using regional data. Finally, we used the postgrouting pile of the Wuqi–Dingbian expressway as a practical example. The results obtained from the layer-wise summation method after parametric optimization were close to the measured values. The results of this study provide reference data and guidance for the settlement calculation of postgrouting piles in this area. |
| format | Article |
| id | doaj-art-8290c1d573a6408287dfd81a03944c12 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-8290c1d573a6408287dfd81a03944c122025-02-03T07:25:30ZengWileyAdvances in Civil Engineering1687-80861687-80942019-01-01201910.1155/2019/70851047085104Optimization Analysis of Settlement Parameters for Postgrouting Piles in Loess Area of Shaanxi, ChinaZhijun Zhou0Shanshan Zhu1Xiang Kong2Jiangtao Lei3Tong Liu4School of Highway, Chang’an University, Xi’an, Shaanxi 710064, ChinaSchool of Highway, Chang’an University, Xi’an, Shaanxi 710064, ChinaSchool of Highway, Chang’an University, Xi’an, Shaanxi 710064, ChinaSchool of Highway, Chang’an University, Xi’an, Shaanxi 710064, ChinaSchool of Science, Xi’an University of Architecture and Technology, Xi’an, Shaanxi 710055, ChinaThe settlement calculation of postgrouting piles is complex and depends on the calculation method and parameters. Static load tests were conducted to compare the settlement characteristics of nongrouting and postgrouting piles, and three vital parameters in the layer-wise summation method were revised to predict the settlement of postgrouting piles. The elastic compression coefficient was deduced based on the Mindlin–Geddes method by considering the influence of the change in the pile side resistance distribution and end resistance ratio on the elastic compression after grouting. The relationship between the compression modulus and soil gravity stress and cone penetration resistance were established, respectively, using experimental data. The optimum value of the settlement empirical coefficient was determined using regional data. Finally, we used the postgrouting pile of the Wuqi–Dingbian expressway as a practical example. The results obtained from the layer-wise summation method after parametric optimization were close to the measured values. The results of this study provide reference data and guidance for the settlement calculation of postgrouting piles in this area.http://dx.doi.org/10.1155/2019/7085104 |
| spellingShingle | Zhijun Zhou Shanshan Zhu Xiang Kong Jiangtao Lei Tong Liu Optimization Analysis of Settlement Parameters for Postgrouting Piles in Loess Area of Shaanxi, China Advances in Civil Engineering |
| title | Optimization Analysis of Settlement Parameters for Postgrouting Piles in Loess Area of Shaanxi, China |
| title_full | Optimization Analysis of Settlement Parameters for Postgrouting Piles in Loess Area of Shaanxi, China |
| title_fullStr | Optimization Analysis of Settlement Parameters for Postgrouting Piles in Loess Area of Shaanxi, China |
| title_full_unstemmed | Optimization Analysis of Settlement Parameters for Postgrouting Piles in Loess Area of Shaanxi, China |
| title_short | Optimization Analysis of Settlement Parameters for Postgrouting Piles in Loess Area of Shaanxi, China |
| title_sort | optimization analysis of settlement parameters for postgrouting piles in loess area of shaanxi china |
| url | http://dx.doi.org/10.1155/2019/7085104 |
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