compression test

On the basis of the theory,the paper analyzes the effects,such as permeability,compaction and splitting,of post-grouting to pile shaft and soil around pile tip qualitatively,and the paper also analyzes the change of front-to-back bearing capacity and its influencing factors.

本文应用柱形塑性扩张理论对灌注桩后压浆的最终扩张压力与扩散半径进行推导和计算,定性分析了后压浆对桩侧,桩端土产生渗透、压密、劈裂三种效应机理,应用经验公式分析了压浆前后承载力的变化及其影响因素,通过工程实例总结得出相关结论,对于同类工艺的技术参数选取有现实的指导意义。

The industrial test on continuous smeltin of compact zinc slag using fuming furnace without heat source is described,the feasibility and economy of all cold charging for continuous smelting of compact zinc slag are discussed.

文章主要描述了烟化炉在没有热源的情况下压密锌渣连续吹炼的工业试验情况,探讨了压密锌渣烟化炉全冷料连续吹炼的可行性和经济性,为烟化炉处理湿法锌渣开辟了新的途径。