Application of Gray System Theory on Prediction of Ultimate Bearing Capacity of Jet Grouting Soil-Cement-Pile Strengthened Pile

任连伟; 刘汉龙; 张华东; 郑浩

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Application of Gray System Theory on Prediction of Ultimate Bearing Capacity of Jet Grouting Soil-Cement-Pile Strengthened Pile

更新时间：2025-12-11

- Application of Gray System Theory on Prediction of Ultimate Bearing Capacity of Jet Grouting Soil-Cement-Pile Strengthened Pile
- Vol. 29, Issue 2, Pages: 193-200(2009)
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  CLC： U473.1
- Published：2009
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[1]任连伟,刘汉龙,张华东,郑浩.高喷插芯组合桩极限承载力的灰色预测[J].防灾减灾工程学报,2009,29(02):193-200.

任连伟, 刘汉龙, 张华东, et al. Application of Gray System Theory on Prediction of Ultimate Bearing Capacity of Jet Grouting Soil-Cement-Pile Strengthened Pile[J]. 2009, 29(2): 193-200.
[1]任连伟,刘汉龙,张华东,郑浩.高喷插芯组合桩极限承载力的灰色预测[J].防灾减灾工程学报,2009,29(02):193-200. DOI：

任连伟, 刘汉龙, 张华东, et al. Application of Gray System Theory on Prediction of Ultimate Bearing Capacity of Jet Grouting Soil-Cement-Pile Strengthened Pile[J]. 2009, 29(2): 193-200. DOI：

摘要

高喷插芯组合桩（JPP）是一种新的桩型

具有承载力高、造价低等优点。许多工程单桩的静载荷试验只能加到两倍设计荷载

无法达到试桩的极限或破坏荷载

因此利用有限的实测数据比较准确地预测高喷插芯组合桩的极限承载力具有一定的现实意义。根据灰色理论

介绍了预测单桩竖向极限承载力的自调整非等步长GM（1

1）模型

讨论了三种不同的灰色模型在有限的实测数据条件下预测单桩极限承载力以及荷载—沉降关系的方法。通过对达到破坏和未达到破坏的工程实例的分析计算

证明三种模型的预测精度是令人满意的

其中等维新息模型预测精度最高。

Abstract

Jet grouting Soild-cement-Pile Strengthened Pile（JPP） is a new type of pile and has the advantages of high bearing capacity and low costs.The loads in many static tests of engineering single pile can be applied up to only double of the design load but not the ultimate or failure load.It is of pratical significance for civil engineers to accurately predict the ultimate bearing capacity of JPP with the limited measurement data available.Based on the gray theory

a non-uniform step GM（1

1） model was introduced to predict the capacity of JPP.Three different methods of predicting the ultimate bearing capacity and the loadsettlement relation are discussed in detail.The analytical results of the engineering cases before and beyond failure have proved that the three grey models are all reliable with enough precision to meet the engineering requirement

and the model of iso-dimension and new information grey has the highest accuracy.

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references

未达到破坏的单桩极限承载力的灰色预测 [J]. 罗战友,董清华,龚晓南. 岩土力学 . 2004(02)

大直径桩承载力的灰色预测方法 [J]. 肖宏彬,阮波. 株洲工学院学报 . 2002(04)

单桩极限承载力的灰色预测 [J]. 周国林. 岩土力学 . 1991(01)

灰色系统基本方法[M]. 华中工学院出版社 , 邓聚龙著, 1987

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