| 人工冻土单轴抗压强度灰色理论预测 |
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| 引用本文： | 牛连僧,姚兆明,亓燕秋.人工冻土单轴抗压强度灰色理论预测[J].淮南工业学院学报,2014(1):6-10. |
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| 作者姓名： | 牛连僧 姚兆明 亓燕秋 |
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| 作者单位： | [1]安徽理工大学土木建筑学院,安徽淮南232001 [2]安徽理工大学冻土力学研究所,安徽淮南232001 [3]中煤矿山建设集团有限责任公司,安徽合肥230000 [4]中煤矿山建设集团有限公司淮南冻结处,安徽淮南232001 |
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| 基金项目： | 国家自然科学基金资助项目（40972188/D0214）;安徽省博士后基金资助项目. |
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| 摘 要： | 人工冻土的物理力学指标是冻结法凿井中冻结壁设计参数和开挖的依据，为提高人工冻土单轴抗压强度预测的精确度与稳定性，利用灰色理论处理小样本数据的独特优势，结合影响人工冻土单轴抗压强度因素，提出了人工冻土单轴抗压强度的预测方法。针对传统的GM（1，1）模型预测产生的较大误差的缺点，增加了原始序列的光滑度，并优化了时间响应函数，建立了改进的GM（1，1）模型。结果表明，利用改进的GM（1，1）模型的预测精度优于传统模型。该模型为人工冻土单轴抗压强度的预测提供了一种新方法。
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| 关 键 词： | 人工冻土强度 灰色理论 GM（1 1）模型 单轴强度预测 |
Calculation of Artificial Frozen Soil Uniaxial Strength Based on Grey Theory |
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| NIU Lian-seng,YAO Zhao-ming,QI Yan-qiu.Calculation of Artificial Frozen Soil Uniaxial Strength Based on Grey Theory[J].Journal of Huainan Institute of Technology(Natural Science),2014(1):6-10. |
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| Authors: | NIU Lian-seng YAO Zhao-ming QI Yan-qiu |
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| Affiliation: | 1. School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan Anhui 232001, China; 2. Institute of Atificial Frozen Soil Mechanics, Anhui University of Science and Technology, Huainan Anhui 232001, China; 3. China Coal Construction (group) Corporation LTD. , Hefei Anhui 230000, China;4. China Coal Construction (group) Corporation LTD, Huainan Frozen Construction Department, Huainan Auhui 232001, China) |
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| Abstract: | The mechanical properties of frozen soil in the freezing sinking project are the basis of freezing wall de -sign and excavation .In order to improve accuracy and stability of artificial frozen soil uniaxial strength predic-tion, the prediction methods of artificial frozen soil uniaxial strength was put forward , which can calculate artifi-cial frozen soil uniaxial compressive strength , based on the artificial permafrost uniaxial compressive strength test and using grey theory which has advantages in small sample processing .The improved GM （1, 1） model was es-tablished , which increases smoothness of the original sequence and optimizes time response function to mitigates the prediction error of traditional GM （1, 1） model.The results showed that the prediction accuracy by improved GM （1, 1） model is superior to the traditional model .The improved model is a new method to predict artificial frozen soil uniaxial strength . |
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| Keywords: | artificial frozen soil uniaxial strength greytheory GM（1 1） model uniaxial strength prediction |
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