Top Company introduction Business introduction Achievements / case studies Employment information Contact Us Business introduction top DO-Jet method Vertical jet method Jet mall construction method Vertical jet method Ultra-high pressure jet application technology What is the vertical jet method? Remove underground obstacles from compact ground equipment A construction method in which the casing is penetrated from the ground, the ground subsidence during cutting and pulling out of underground obstacles is suppressed by injecting an ultra-high pressure jet, and traffic obstacles are minimized by making the ground equipment compact. Features of vertical jet method compact Compared to conventional construction methods (all casings, etc.), the compact equipment enables space saving, low cost, and a significant reduction in construction period. It has little impact on traffic and can reduce noise and vibration. Disconnect By cutting underground obstacles such as H-shaped steel and steel sheet piles with an ultra-high pressure jet freely and finely according to the purpose and situation of construction, it is possible to handle from "complete removal" to "partial removal". Ground improvement At the same time as removing underground obstacles, cement-based ground improvement material is filled to improve the strength to the same level as the surrounding ground. Vertical jet method utilization example Complete removal of underground steel sheet piles 1 Penetrate the casing while cutting the side of the steel sheet pile with an ultra-high pressure jet. 2 Pull out the steel sheet pile and casing while filling with cement milk to improve the ground. 3 Next, move to the part of the steel sheet pile to be pulled out, and repeat steps 1 and 2. Combined use with propulsion method and shield method 1 Penetrate the casing to any position on the side of the steel sheet pile. 2 Finely cut steel sheet piles by injecting an ultra-high pressure jet to rotate and penetrate the casing. 3 Repeat steps 1 and 2 until cutting the area through which the excavator passes is completed. Four The excavator moves forward while taking in the cut pieces at the place where the underground obstacle was cut. Top Company introduction Message from the President Company Profile List of bases / access Business introduction DO-Jet method Vertical jet method Jet mall construction method Achievements / case studies Employment information Business introduction Employee introduction list Education and training system List of application requirements entry Contact Us Notice privacy policy Copyright © 2015 N.JET engineering All Rights Reserved.