並列摘要
This article presents the relationship among pump characteristics, outflow rate and jetting velocity in jet grouting. The constituents of soilcrete are similar to concrete, however, there exists more uncertainties for the quality control of soilcrete. The major factors which affect the quality of soilcrete are presented, as well as the major uncertainties in predicting the insitu soilcrete. To assure the quality of soilerete, field trials and sampling are necessary. A case study of field trial to make sure the strength of soilcrete in Tienmu, Taipei is addressed. Both field procedures and sample evaluation are addressed. These can help engineers to choose the pump pressure, lifting speed, rod rotation speed, cement consumption and admixtures for other similar projects.