Utah Boring Company - Tunnel Construction Contractors

Tunnel construction in the jack and bore, horizontal auger boring, hand mining, and hand tunneling processes serves to create underground passages for various infrastructure projects. Below is a detailed breakdown of how these techniques are applied across industries like stormwater management, drainage, sewer systems, roads, railroads, and municipal works.

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1. Jack and Bore (Auger Boring)

• Overview: A trenchless method where a horizontal casing pipe is installed underground without disturbing the surface. A rotating auger removes soil as the casing pipe is pushed forward.
• Applications:
  • Stormwater & Drainage: Used to install large pipes for stormwater conveyance under roads or railways.
  • Sewer: Common for placing gravity sewer lines, especially where minimal slope is needed.
  • Roads & Railroads: Allows utility installations without surface disruption, ensuring minimal impact on traffic or rail operations.
  • Municipal: Often used for water and gas pipelines beneath city streets.

2. Horizontal Auger Boring

• Overview: A mechanical boring process that uses a rotating auger inside a steel casing. It removes soil and rock while simultaneously advancing the casing pipe.
• Applications:
  • Stormwater: Installs large conduits to handle runoff without open-cut excavation.
  • Drainage & Sewer: Ideal for long runs of drainage or sewer pipes beneath obstacles like highways or buildings.
  • Railroads: Effective for installing crossing pipes beneath rail tracks without disturbing train schedules.
  • Municipal: Provides a cost-effective solution for utility installations under existing infrastructure.

3. Hand Mining

• Overview: A traditional method where workers manually excavate soil, supported by timber or steel braces, and install lining systems to prevent collapse.
• Applications:
  • Sewer & Drainage: Used in confined spaces where precision is required, especially for smaller-diameter pipes.
  • Stormwater: Hand mining is often chosen for access tunnels leading to larger stormwater systems.
  • Roads & Railroads: Used in small, sensitive projects where mechanized methods might not be feasible.
  • Municipal: Common in older cities with congested underground utilities or historical preservation concerns.

4. Hand Tunneling

• Overview: Similar to hand mining but specifically designed for creating larger tunnels. Excavation and support systems (like shotcrete or precast segments) are used to maintain stability.
• Applications:
  • Stormwater & Drainage: Builds large underground stormwater retention or drainage systems in urban areas.
  • Sewer: Allows installation of large-diameter sewer tunnels in urban environments.
  • Roads & Railroads: Used to build access tunnels or utility corridors under existing infrastructure.
  • Municipal: Supports larger infrastructure projects like utility relocation or tunnel expansion.

Stormwater & Drainage

• Purpose: Managing rainwater and preventing flooding.
• Role of Tunnel Construction:
  • Creates underground channels to collect and transport water efficiently.
  • Reduces surface-level disruption and ensures the sustainability of urban drainage systems.

Sewer Systems

• Purpose: Convey wastewater and sewage to treatment facilities.
• Role of Tunnel Construction:
  • Installs pipelines with precision slopes to maintain flow.
  • Avoids disrupting surface activity in densely populated areas.

Roads & Railroads

• Purpose: Maintain the integrity of transportation infrastructure while adding underground utilities.
• Role of Tunnel Construction:
  • Enables the crossing of utilities like water, gas, and electricity under critical infrastructure.
  • Reduces delays and ensures minimal disruption to commuters and freight services.

Municipal Projects

• Purpose: Support city infrastructure, including water, sewage, and utilities.
• Role of Tunnel Construction:
  • Facilitates new utility installations and expansions without damaging roads or buildings.
  • Ensures compliance with safety, environmental, and zoning regulations.

Advantages of Tunnel Construction

1. Minimized Surface Disruption: Ideal for urban and high-traffic areas.
2. Cost-Effective: Reduces the need for extensive open-cut excavation.
3. Precision: Achieves exact gradients for gravity systems like sewer and drainage lines.
4. Versatility: Applicable in various industries and soil conditions.

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Each technique’s application depends on project scale, soil conditions, and environmental factors. Together, these methods form the backbone of modern underground construction for critical infrastructure.