A sodium silicate-based chemical grout was used in the Karkheh dam site in order to examine the performance of the chemical grouting technique for stabilization of the dam's filter material. Karkheh, an embankment dam with the reservoir capacity of about 7.4 billion cubic meter at the maximum water level, is the largest dam in Iran. The grouting works performed at the dam site, were part of the...

The 8006 working face at the Wuyang Coal Mine adopts grout injection into bed separation technology for surface subsidence control. Surface leakage occurred during process of this face. Grout has adverse effects on grouting filling effect, cost and environment. To determine channels slurry transport process, to provide a theoretical basis prevention control, paper first used 3D seismic explorat...

Interferometric Synthetic Aperture Radar (InSAR) has become the primary remote sensing detection method for monitoring significant surface subsidence and deformation caused by underground coal mining. Time Series InSAR been intensively researched in mining-caused its ability to provide time series, with Small Baseline Subset (SBAS-InSAR) Permanent Scatter (PS-InSAR) being two classical methods....

The use of prefabricated bridge columns in seismic regions is challenging since performance data on precast column connections limited. A handful accelerated construction (ABC) details to connect adjoining members have been experimentally investigated, and some were found viable for applications field deployment. connection consisting ducts filled with conventional grout the focus present study...

Abstract The design of remediation works for the mitigation and prevention associated risk is needed where these geological hazards affect anthropized areas. Remedial measures landslides commonly include slope reshaping, plumbing, drainage, retaining structures internal reinforcement, while debris flow control consist in open or closed structures. effectiveness remedial implemented must be asse...

Abstract A Very High-Performance Concrete (VHPC) has compressive strength in the range 120-150 MPa and high flowability. However, there is no VHPC mix as a repairing grout Indonesia. This study presents design of using Indonesian by-product materials to achieve 120 MPa. sequence experimental method determined suitable material replace fine sand, ground quartz superplasticizer. Then, optimum was...