Our Services

TUNNELING

Tunnels are dug from varying materials such as soft clay to hard rock. Tunnel construction is based on several factors including ground conditions, groundwater conditions, and other logistics of tunnel excavation. Three basic types of tunnel construction including but not limited to the cut-and-cover tunnel, bored tunnel, and an immersed tube tunnel.

Golden State Boring & Pipe Jacking, Inc., has been installing tunnels since the mid-1990s. The completed tunnels ranging from 5’ in diameter to over 18’ in diameter and excess of 1 mile in length. From wet running type soils to rock that requires a drill and blasting to anything in between. Golden State Boring has completed the project every time.

AUGER BORING

Horizontal Auger Boring is a cost-effective means of trenchless construction that installs a casing from a jacking pit to a receiving pit. The procedure involves the use of augers connected to a cutting head located at the heading or lead casing. Depending on the soil type the cutting head will be in front of the casing in stiff material and inside the casing in soft material. The augers are connected to an auger boring machine that can rotate the auger and cutting head while simultaneously thrusting or jacking the casing through the soils. Golden State Boring & Pipe Jacking, Inc., has auger boring machines capable of bore sizes of 12” to 90” with several completed online and grades with over 850’ in length.

Golden State Boring has been successful using the hydraulic remote front steering method for over 25 years and over 200,000’ of auger boring installed to an operator-controlled line and grade. On small projects (up to 24” in diameter) Golden State Boring uses the guided boring machine for accurate installations.

HORIZONTAL DIRECTIONAL DRILLING

Since the late 1990’s Golden State Boring & Pipe Jacking, Inc., has been installing trenchless installations using horizontal directional drilling (HDD). Golden State Boring’s qualifications include several casings of over 3,000’ in length with carrier pipe diameters of 30” and 36”.