Evalution of ground water drainage works in HIRANE landslide

New piezometer hammer and jack for easy installation and pulling out of the piezometer in drainage and ground water studies

Water Works in India

Most mornings, the line begins to form at dawn: scores of silent women with babies strapped to their backs, buckets balanced on their heads, and in each hand a bright-blue plastic jug. On good days, they will wait less than an hour before a water tanker rumbles across the rutted dirt path that passes for a road in Kesum Purbahari, a slum on the southern edge of New Delhi. On bad days, when ther...

Method of Landslide Measurement by Ground Based Lidar

Landslide is a phenomenon of mass movement of terrain. In order to prevent landslide, understanding the behavior of the landslide is important. The behavior of the landslide is usually measured by extensometer, inclinometer or GPS (global positioning system). These equipments are measuring some points or along the lines; it is difficult to measure the whole landslide area. Currently, it is expe...

Change Detection of Landslide Terrains Using Ground-based Lidar Data

The topographic change has been estimated on basis of 3D laser data and aerial photogrammetric survey. The newly-developed, time-saving approach is by using airborne and ground-based lidar. A points-cloud of high precision and density distribution can be obtained in a few minutes for the sensitive latent landslide area. With a limited control survey of precise targets using GPS and total statio...

Filtering drainage water

Tile drains and French drains are typically used to control subsurface drainage, especially on greens and fairways with shallow water tables or fine soil texture. Tile drains are defined as "drains constructed by laying drain tile with unsealed joints in the bottom of a trench which is then refilled," whereas French drains are a "type of drain consisting of an excavated trench, refilled with pe...