| GM(1,1)与GM(2,1)模型在基坑工程预测中的应用 |
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| 引用本文： | 陈晓斌,张家生,安关峰.GM(1,1)与GM(2,1)模型在基坑工程预测中的应用[J].岩土工程学报,2006,28(Z1):1401-1405. |
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| 作者姓名： | 陈晓斌 张家生 安关峰 |
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| 作者单位： | 1. 中南大学土建学院,湖南,长沙,410075
2. 广州市建筑集团有限公司,广东,广州,510030 |
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| 摘 要： | 灰色系统理论已经在岩土工程领域有广泛的应用。本文把灰色系统中的GM(1,1)模型和GM(2,1)模型应用到基坑工程中,并编制了预测计算程序GYC1.0用于锚杆拉力、地面沉降和地面水平位移预测计算。工程实践说明:GM(1,1)模型比GM(2,1)模型更可靠,稳定性高,但是GM(1,1)模型短期预测时效果良好,中期预测时效果偏差较大,长期预测则要慎重。
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| 关 键 词： | 灰色系统 深基坑 GM(1 1)模型 GM(2 1)模型 变形预测 |
| 文章编号： | 1000-4548(2006)S0-1401-05 |
| 修稿时间： | 2005年12月9日 |
Application of gray-method models G(1,1) and G(1,2) forecasting of pit excavation engineering |
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| CHEN Xiao-bin,ZHANG Jia-sheng,AN Guan-feng.Application of gray-method models G(1,1) and G(1,2) forecasting of pit excavation engineering[J].Chinese Journal of Geotechnical Engineering,2006,28(Z1):1401-1405. |
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| Authors: | CHEN Xiao-bin ZHANG Jia-sheng AN Guan-feng |
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| Affiliation: | CHEN Xiao-bin1,ZHANG Jia-sheng1,AN Guan-feng2 |
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| Abstract: | The GM(1,1) model and GM(2,1) model of the gray system theory were applied in the deep foundation pits,and a program of the gray system theory deformation forecast,named GYC1.0 was also developed.The GYC1.0 could be used for the anchor force,vertical settlement and horizontal displacement forecasting in the deep foundation pits.The construction practices proved that the GM(1,1) model is superiority to the GM(2,1) model for its stability and the accuracy,and the forecasting results are satisfactory while forecasting the short-time value,but the long-time forecasting values are circumspect sometimes,for the forecasting deflection become larger in the long-time forecasting. |
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| Keywords: | gray system theory deep foundation pit GM(1 1) model GM(2 1) model deformation forecast |
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