Comprehensive Evaluation on Testing Quality of Cement Mixing Pile of Weak Subgrade by Core Drilling Method

Abstract:

Cement mixing pile is widely used in weak subgrade treatment and the quality of it has a direct bearing on the treatment effect of weak subgrade. Core drilling method is an effective method of testing quality of cement mixing pile. However, there are certain deficiencies in quality evaluation method of this kind of piles during practical application. In this paper, auxiliary evaluation criterion, established through standard test pile and combining with subgrade testing engineering is applied to the quality evaluation on test pile with construction deficiency after being combined with existing evaluation system. The result shows that the adoption of evaluation result of improved quality evaluation system can well reflect the pile construction quality of the test pile under complicated soil layer condition and is a reliable method of pile quality evaluation.

• Periodical: Advanced Materials Research (Volumes 1065-1069)
• Pages: 1559-1563
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1065-1069.1559
• Online since: December 2014
• Authors: Yu Bin Hou*, Yun Liu, Yan Jie Li
• Keywords: Cement Mixing Pile, Comprehensive Evaluation, Core Drilling Test, Standard Test Pile

References

[1] Yunjiang Wang. Cement Mixing Pile Construction Quality Control [J]. Sub grade Engineering, 2007 (1): 129-131, In Chinese.

[2] Haidong Fang, Chuntao Wang, Yalou Liu. Comprehensive Scoring Method for Cement Mixing Pile Quality Inspection [J]. Soil Engineering and Foundation, 2006, 20 (1): 41-44, In Chinese. 218-220.

[3] Fenghua Tang, Zichao Zhu, Yisheng Zhu. Discussions on Some Problems of Cement Mixing Pile Inspection in Jiangsu Highway [J]. Jiangsu Geology, 2004, 28 (4): 218-220, In Chinese.

[4] Bin Shi, Yongming Wu. Research on Reinforcing the Strength of Cement Soil of Soft Soil with High Water Content by Dry Jet Mixing Method [J]. Subgrade Engineering, 2008, (2): 111-113, In Chinese.

[5] Chenggang Zhou, Junliang Gao. Influence Factors of Cement Soil Strength [J]. Coal Geology Exploration, 2001, 29(1): 45～48, In Chinese.

[6] Shizhou Zhang, Peng Ji. Discussions on Some Problems of Cement Mixing Pile Test by Core Drilling Method [J]. Science and Technology Innovation Herald, 2008 (34): 51-52, In Chinese.

[7] Hui'e Chen, Qing Wang. Experimental Research on Reinforcement of Soft Soil in Different Regions by Cement [J]. Rock and Soil Mechanics, 2007, 28(2): 423-426, In Chinese.

[8] Songyu Liu, Yongfeng Deng, Li Shao. Indoor Experimental Research on Influence of Salt Content on Cement Soil Intensity [J]. Journal of Engineering Geology, 2007, 15(1): 139-143, In Chinese.

[9] Xiaohua Tong. Construction Quality Monitoring of Deep Cement Mixing Pile [J]. Sichuan Architecture, 2010, 36 (2): 106-108, In Chinese.