Subsurface examination techniques include trench-digging, boring (to test resistance as well as to obtain samples), and pumping subsurface matter to the surface with water.
No need to dig into boring textbooks.
The presence of a sandy soil may offer some protection to groundwater resources in very vulnerable dug or bored wells.
Shallow dug or bored wells, located in sites where there is a thin soil profile or shallow water table, can be very vulnerable to contamination.
I imagined them making it, digging the tunnels, boring through the rocks, the layers, strata, the history of the world stacked.
I couldn't find work, and it was boring to dig under the ground.
There are a number of different reasons why dogs start digging: They might be bored, looking for pests or trying to escape the heat.
Last month, the authority agreed to pay a consortium of construction firms $1.14 billion for the first phase of work on the subway project, which involves boring the tunnels and digging out space for the station at 34th Street.
Because no one is sure what kind of rock will be found inside the mountain, the tunnel will be built using a painstaking method of blasting and digging, rather than the tunnel-boring machines that have revolutionized tunnel construction in recent years.
Dogs often dig because they are bored.
No-dig technology, which includes microtunneling (for boring holes up to 36 inches in diameter) and horizontal directional drilling (for holes around 15 inches or less), was developed 20 years ago to install utility lines under densely populated cities.
