RJP与三重管高压旋喷工艺在基坑加固工程中施工工艺对比分析

Contrastive Analysis of Construction Methods of RJP and Triple-tube High Pressure Rotary Jet Technologies in Reinforcement Project of Foundation Pit

摘要:

以福州市滨海新区轨道交通滨海新城站的基坑加固工程为例，通过对坑底加固中的大直径高压旋喷RJP和三重管高压旋喷两种加固工艺的应用对比，分析了两种施工工艺在工艺参数设置、成桩直径、桩基完整性和强度等成桩效果，工效和成桩经济型差异。研究结果验证了RJP工艺在地基加固中应用较好的技术参数值。

Abstract:

Taking the foundation pit reinforcement project for Binhai New Town Station in the metro line of Binhai New District in Fuzhou as an example, Through the contrastive application of two reinforcement techniques of large-diameter high pressure rotary jet RJP and triple-tube high pressure rotary jet in the reinforcement of foundation bottom, the differences between the two construction technologies in the setting of technological parameters, pile diameter, integrity and strength of pile foundation, work efficiency and pile economy are analyzed. The study result verifies the technical parameter values of RJP technology better applied in the foundation reinforcement.