We are providing expertise services in Horizontal tunnel excavation and Vertical tunnel excavation. We are executing Tunnel Excavation in the process of Drilling Blasting, Hydraulic Chiselling based on Class of Rock and Size of the Tunnel, Hydraulic Splitting (Wedge type splitting and piston type splitting), Rib erection, Metal forming work, Rock bolting at a depth of 6m, Rebar Anchoring, Shot-Creating after blasting.
We are Expertise on Under Ground Metro Rail Tunnel Cross Passage Excavation and Construction. We are executing job as Mumbai Metro Rail Project, Chennai Metro Rail Project, and Kolkata Metro Rail Project. We excel at detailed planning and coordination between our client, our shops, our field teams, our sub-contractors and other trades. Construction is accomplished efficiently, safely and successfully, in terms of both time and money.
The action of dividing or being divided in two parts is splitting. A Hydraulic Splitter, also known as Rock Splitter is a type of portable hydraulic tool. It is used in demolition, which involve breaking large blocks of concrete or rocks. To permit the use of the hydraulic splitter, a hole must be drilled into which the splitting cylinder wedge and counter wedges can be inserted. Holes are usually made with a conventional, hand-held pneumatic hammer drill, a simple, straightforward process. In quarries, large machines capable of drilling several holes simultaneously are used.
Wedge type splitting is applicable if the rock is intermediate to class 2 & 3.
Piston type Rock Splitter is highly effective in Hard Rock
strata, and is applicable where wedge type not able to give
productivity. Applicable for class 1 & 2 Rocks.
We are executing Hard Rock Splitting technique in L&T STEC
JV Mumbai Metro Tunnel Cross Passage works with the use of
Hydraulic Splitter.
We are providing Rebar anchoring services as a part of Infrastructure Integration through
We shall make use internationally approved brands and also will executes as per Client advise and section criteria.
Shotcrete is mortar or concrete shot into place by means of compressed air.
In this process, cement and moist aggregate are mixed and then placed into a stream of compressed air.
In the wet-mix process, all ingredients are first mixed to produce mortar or concrete.
A Rock Bolt is a long anchor bolt, for stabilizing rock
excavations, which may be used in tunnels or rock cuts. It transfers
load from the unstable exterior to the confined interior of the rock
mass.
We are executing Rock bolting in Under Ground tunnel Cross
Passage on Mumbai Metro Rail Project.
A Lattice Girder is a truss girder where the load is carried by a web of latticed metal bars. Lattice girders provide the following important functions in the tunnelling process:
Wire Mesh is the Connection of metal or fibre or other flexible material. Wires can be coated in zinc and epoxy to prevent corrosion, or even be available in stainless steel varieties. Architects have incorporated wire mesh into residential features such as staircases, sliding doors, and cabinets to give spaces a modern touch. Wire mesh screens used in flooring can let sunlight from a skylight brighten multiple levels of a building.
The Gantry girders are the girders which support the loads
transmitted through the travelling wheels of the cranes. In tunnel
formwork design consultants is an expert in designing travelling
formwork (Gantry) for any shape and size of tunnel with diameter of
12m standard length.
Features of Gantry erection in tunnel is
Grout is generally a mixture of water, cement, and sand and is employed in pressure grouting, embedding rebar in masonry walls, connecting sections of pre-cast concrete, filling voids, and sealing joints such as those between tiles.
