What Does Entry Site Mean?
In trenchless construction, an entry site is defined as the location of the workspace used at the beginning of horizontal directional drilling operations. Typically located at the entry site are the surface drilling rig, mud recycling equipment, the control cabin and a shallow entry pit. Other features at the entry site include erosion and noise control measures.
An entry site is also referred to as an entrance site or launch site.
Trenchlesspedia Explains Entry Site
The entry site should not be confused with the entry pit. The entry pit is a shallow excavation where the drill head and pipe string penetrate the earth at the start of drilling operations. On the other hand, the entry site defines the entire workspace prepared for horizontal directional drilling, pipe jacking, microtunnelling, or any other trenchless construction activity.
Location and preparation the entry site is usually the first step in any trenchless construction operation. Here, drilling, steering, and mud recycling are performed until the drill head reaches the exit pit located at the exit site.