DEWATERING AND VOLUME REDUCTION OF SOIL WITH HIGH WATER CONTENT USING VACUUM DEWATERING METHOD WITH GEOTEXTILE TUBE (Part 2)

Abstract

Vacuum dewatering method with geotextile tube, which applied vacuum consolidation to Geotextile tube dehydration method, was previously proposed. The proposed method is the technology for improving the performance of dewatering and volume reduction by providing a drainage layer in a geosynthetics bag and applying vacuum pressure in the drainage layer. In this paper, the proposed method was developed by locating a plastic board drain on the surface of the bottom of a geotextile tube. The effectiveness was discussed based on test results using clay with high water content like muddy water. As a result, it was shown that high vacuum pressure is kept and it can dewater in a short time. Furthermore, based on study of test results, some construction methods were proposed.