Tunnel Engineering -Features, Advantages and Methods of Tunneling in Construction
Tunnels are underground constructions used for transportations. The features, advantages, disadvantage and methods of tunneling in construction is discussed.
Tunnels are underground constructions used for transportations. The features, advantages, disadvantage and methods of tunneling in construction is discussed.
When drying in a roof, valleys are among the most vulnerable areas on the entire structure. These inward angles where two roof planes meet channel large volumes of water directly onto the sheathing, making proper flashing absolutely critical. The ZIP System sheathing and tape approach simplifies the process considerably by creating a continuous water-resistive barrier
Proper housewrap installation is one of the most critical yet frequently overlooked aspects of residential construction. The water-resistive barrier, commonly called housewrap, serves as the last line of defense against moisture infiltration behind exterior cladding. When installed correctly according to building code requirements, it prevents rot, mold, and structural deterioration that can go undetected for
When it comes to protecting a building from the elements, the water-resistive barrier (WRB) is one of the most critical layers in the wall assembly. Traditional mechanically fastened housewraps have served the industry well, but they come with challenges: sagging between fasteners, difficulty sealing around penetrations, and the frustration of working solo with large rolls
Unit cost method of estimation in construction projects starts with dividing a project into various components or elements for the purpose of cost estimation. The cost of each of the project’
Different types of pipes are used for underground drains construction. The properties of these pipes and type of drainage required decides the selection of pipes. Underground drain pipes are subjec
Soft-ground tunneling methods are commonly used for urban services (subways, sewers, and other utilities). The tunnel structure in soft ground is generally designed to support the entire load of th
Three types of tendering methods are used in construction- open tendering, selective tendering, and negotiation. Tendering methods are selected based on requirements of construction works.
There are different types of soil excavation tools and machines used in construction. Excavation of soil is necessary in construction point of view and it should be done by hand tools or machinerie
Culvert is a tunnel structure constructed under roadways or railways to provide cross drainage or to take electrical or other cables from one side to other.