| 袋装砂井超载预压法的现场试验研究 |
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| 引用本文： | 楚斌,朱长歧.袋装砂井超载预压法的现场试验研究[J].煤田地质与勘探,2004,32(2):43-45. |
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| 作者姓名： | 楚斌 朱长歧 |
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| 作者单位： | 1. 河南省交通规划勘察设计院地勘处, 河南 郑州 450052; |
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| 摘 要： | 介绍厦门某高速公路软基袋装砂井超载预压大型现场试验结果,讨论了竖向排水井超载预压地基加固效果。通过对测试成果的系统分析,认为厦门某高速公路地基经过加固处理后,其地基工后沉降能满足设计对地基变形的严格要求。结果还表明:安全控制应以沉降速率和水平位移速率为主,其标准可分别采用20mm/d和10mm/d。
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| 关 键 词： | 软基处理 超载预压 沉降 孔隙水压力 |
| 文章编号： | 1001-1986(2004)02-0043-03 |
| 收稿时间： | 2003-04-11 |
| 修稿时间： | 2003年4月11日 |
Field experimental study on surcharge precompression combined with vertical drains |
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| CHU Bin,ZHU Chang qi.Field experimental study on surcharge precompression combined with vertical drains[J].Coal Geology & Exploration,2004,32(2):43-45. |
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| Authors: | CHU Bin ZHU Chang qi |
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| Institution: | 1. Institute of Rock Mechanics, The Chinese Academy of Sciences, Wuhan 430071, China;2. Henan Provincial Communication Planning and Design Institute, Zhengzhou 450052, China |
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| Abstract: | In this paper, the results of in situ testing of the freeway of Xiamen city by surcharge precompression combined with vertical drains is introduced. The outcome of vertical drains ground is evaluated. Based on the field test results, it is considered that, after strengthening by surcharge precompression, the post construction settlement of the freeway of Xiamen city will be small enough to satisfy the strict requirement of ground deformation. The tests also show that the safety monitoring of the ground should be carried out according to the rates of settlements and lateral displacements, so the construction indexes should be carried out 20 mm/d and 10 mm/d. |
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| Keywords: | soft foundation treatment surcharge precompression settlement pore water pressure |
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