Affordable Access

Publisher Website

Jet grouting with a newly developed technology: The Twin-Jet method

Authors
Journal
Engineering Geology
0013-7952
Publisher
Elsevier
Publication Date
Volume
152
Issue
1
Identifiers
DOI: 10.1016/j.enggeo.2012.10.018
Keywords
  • Jet Grouting
  • Quick Gelling
  • Sandy Soil
  • Clayey Soil
  • Case History
Disciplines
  • Design

Abstract

Abstract The Twin-Jet method, a newly developed jet grouting technology for the instant solidification of soft ground, is presented. The basic principles of the Twin-Jet method are introduced and sodium silicate (water-glass) is selected as the binder to accelerate the hardening process of an admixture of grout and soil. Two case histories of the Twin-Jet Method, conducted in both a vertical (constructed in sandy soils) and a horizontal (constructed in clay soils) direction, are presented to show their effectiveness. Field construction shows that the admixture of grout and soil can be gelled within 5 to 10seconds. For the case history constructed in sandy soils, coring samples indicate that the jet grout columns are properly formed with a total core recovery of 80–100%, a rock quality designation (RQD) of 81–95% and a column diameter reaching 1.1m, while unconfined compressive strength (UCS) tests suggests that the 28-day UCS is within the range of 5.0–6.0MPa. For the case history constructed in clay soils, field cone penetration tests (CPT) suggest that the column diameter can reach 1.2m, and the UCS test results show that the 14-day UCS can reach 0.5MPa. All of these test results demonstrate the applicability of this newly developed technology in both sandy and clay soils.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

A review of grouting techniques utilised for bored...

on Construction and Building Mate... Jan 01, 1988

A newly developed visual method of sexing the os p...

on American Journal of Physical A... March 1969

[Role of newly developed technology in blood coagu...

on Rinsho byori. The Japanese jou... May 2002
More articles like this..