›› 2018, Vol. 32 ›› Issue (1): 106-110.

• 工程实录 • 上一篇    

高压预制水泥土桩配比试验优化分析

郭昱葵1,陈达芬2,戴 也3,冯 磊2   

  1. (1.中交第二公路勘察设计研究院有限公司,武汉 430056;2.中国地质大学(武汉)工程学院,武汉 430074;
    3.武汉中力岩土工程有限公司,武汉 430071)
  • 收稿日期:2017-04-27 修回日期:2017-06-06 出版日期:2018-02-20 发布日期:2018-03-01
  • 作者简介:郭昱葵(1966-),男,高级工程师,研究方向为公路路基路面专业。 通讯作者:陈达芬(1990-),男,硕士研究生,研究方向为地基处理及基础、基坑工程。

Study of Optimized Mixing Ratio of High Pressure Prefabricated Cement-Soil Columns

GUO Yukui1, CHEN Dafen2, DAI Ye3, FENG Lei2   

  1. (1.CCCC Second Highway Consultants Co., Ltd., Wuhan 430056;2.College of Engineering, China 
    University of Geosciences, Wuhan 430074;3.Wuhan Zhongli Geotechnical Engineering Co. Ltd., Wuhan 430071)
  • Received:2017-04-27 Revised:2017-06-06 Online:2018-02-20 Published:2018-03-01

摘要: 通过新研制的高压预制水泥土桩设备,探索在25 MPa的压力下压制成水泥土桩的配比与水泥土强度关系。通过最优原则设计了试验,得出了新水泥土桩试块的水灰比和无侧限单轴抗压强度关系图,进而通过拟合曲线得到拟合方程;分析了水泥掺比,石灰掺比,和水掺比与强度之间关系,得出在给定的区间内高压预制水泥土桩水灰配比优化区间为0.4到0.7。试验确定了高压预制水泥土桩配比与强度关系,为推广和施工提供支持。 

关键词: 水泥土, 高压制水泥土桩, 最优配比试验, 优化分析

Abstract: The development of a new prefabricated high pressure formed cement mixing soil column equipment is introduced in this paper. Under a pressure of 25 MPa, the relationship between the cement ratios and the compressive strength of prefabricated cementsoil columns are investigated. The cementsoil block samples with different mixing ratios and the unconfined compressive strength correlations are obtained throughout the regression analysis. The amount of cement, lime and water in the prefabricated high pressure formed cementsoil columns are optimized and the appropriate cementwater ratio range is between 0.4 and 0.7.

Key words: cement-soil columns, high pressure prefabricated cement mixed soil columns, optimized mixing ratio, optimizing tests