GeoTechnical Services

Soil Investigation

Soil Investigationa are performed in order to get more details about the surface and nature of soil.

We provide variety of Services Related to Soil Investigation

  • Soil Testing Laboratary
  • Borehole Videography
  • Pressuremeter Test
  • Land Geographical Investigation
  • Marine Geotechnical Investigation

Soil Testing Laboratry

BoreHole VideoGraphy

Pressuremeter Test

Land geographical investigation

Marine Geotechnical investigation

Rock Anchorings

Rock Anchoring is the term used to describe embedding of steel bars into bedrock or soil. The bars are bonded to the earth with high strength grout composed of cement ,sand or other materials Anchoring the rock in this manner helps resist lateral thrust on the walls, stabilizes slopes and strengthens masonry.

  • PRESTRESSED ROCK ANCHORING
  • PASSIVE ROCK ANCHORING

Short Crete

Shotcrete concrete is concrete or mortar conveyed through a hose and pneumatically projected at high velocity onto a surface, as a construction technique. It is typically reinforced by conventional steel rods, steel mesh, or fibers.

Shotcrete is usually an all-inclusive term for both the wet-mix and dry-mix versions. In pool construction, however, shotcrete refers to wet mix and gunite to dry mix. In this context, these terms are not interchangeable.

Shotcrete is placed and compacted at the same time, due to the force with the nozzle. It can be sprayed onto any type or shape of surface, including vertical or overhead areas.

 

DRILLING & GROUTING

Grouting, as applied to civil and geotechnical construction, involves the injection under pressure of a liquid or suspension into the voids of a soil or rock mass or into voids between the soil or rock mass and an existing structure. The injected grout must eventually form either a solid or gel within the injected voids. The purpose of pressure grouting a soil or rock mass is to improve the strength and durability of the grouted mass and/or to reduce its permeability. Grouting applications relating to permeability reduction include: Reduction of hydrostatic forces acting on the base of water retention structures or tunnel linings Reduction of reservoir water loss, Reduction of erosion of foundations and embankments, Excavation shoring by stabilization, consolidation, and water control Improvement of Mechanical Properties Grouting applications relating to mechanical property improvement include: Enhancement of bearing capacity Consolidation of an overburden of either soil or fractured rocks to facilitate an underground excavation.

BOULDER NET

Boulder netting is a rock fall protective measure and an engineering solution This is used at:

  •  Where the rock strata is fairly strong but jointed and blocky in nature, with not definite pattern / orientation of joints.
  • Where rock mass is shattered, with wide / deep cracks which cannot be removed by loose scaling.
  • Where big size sub-rounded boulders are seen in top rock slopes, partially embedded in laterite soil

High Strength Steel Boulder net is made up of galvanized steel ropes. This helps in preventing big sized boulders or rock chunks detached / loosened from the rock mass from rolling down, and helps in guiding them towards bottom of the rock slope
and prevent the falling of rock mass on to the track

CONVENTIONAL PILING

Sometimes the impression can be given that nowadays all sheet piling can be installed by either a leader rig or silent piler, but there is still a requirement to drive piles using the tried and trusted method of pitching piles in panels, and using walings and trestles to temporarily guide and secure them. A crane is used to pitch the piles and then it can lift the piling hammer.

ROTARY PILING

Rotary piling is especially suited to boring through hard strata, and any boulders or man made obstructions which may prevent the use of CFA piling methods. On confined sites rotary piling can work with a smaller site setup than a CFA rig. For basement & retaining wall projects, the rotary method used with segmental casing offers tight tolerances on pile verticality, as well as allowing the installation of full length reinforcement cages to a greater depth than CFA piling. Rotary piling can also be used together with permanent debonding pile sleeves, reducing load transfer to underground structures such as tunnels, culverts or retaining walls.

MICROPILLING

MICROPILLING Micro piles are small diameter drilled and grouted friction piles where each pile includes steel elements that are bonded into the bearing soil or rock — usually with cement grout. Micropiles are a durable, cost efficient option with a shorter installation time than other methods. As you can see, there are multiple benefits to using micropiles for foundation repair or installation. Additionally, there are actually different kinds of individual piles that are suited for specific foundation needs.