Method and apparatus for chemical injecting construction

Abstract

Abstract PURPOSE: To reliably mix two-liquid type hardening chemicals for smoothly performing a chemical grouting operation by forcibly sending the two liquids separately to the vicinity of the injection port formed in the wall of an injection tube, and providing a means for mixing both liquids to contact at right angle in the tube. CONSTITUTION: An injection tube is installed in a given spot. One liquid A of liquid type suspension two-components hardening chemicals G is forcibly sent through the first channel 9, and the other liquid B through the second channel 10. Consequently, a spool valve 6 is pushed down, and so the channel 9 and the first discharge port 11 are communicated with each other, so that the liquid A discharged into a guide chamber 14. With the spool valve 6 positioned at its lower limit. a connecting hole 16 is communicated with a through hole 17, so that the liquid B is discharged into the guide chamber 14 through the second discharge port 12. When flowing down a guide wall 1a, the discharged liquid A contacts at right angle with the liquid B to be discharged, and both liquids are mixed together before being uniformly injected into peripheral ground horizontally from an injection port 4. At this time, the injection tube is rotated or moved axially, according to the necessity. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Mineo Murata
• 👤 Takehiko Tokoro

Bibliographic Details