Guided Auger Boring
Guided Auger Boring is a high-precision, trenchless pipe installation technique designed to lay underground utilities without digging continuous surface trenches.
The guided auger boring equipment is set up in a launch pit between thrust walls, perfectly aligned with the predetermined route and target grade. Using a live optical guidance system with a theodolite camera, operators monitor and guide pilot rods with extreme precision through the ground toward the receiving pit. Once the pilot bore reaches the destination, the line is enlarged via auger boring, followed by clay or steel pipe jacking to finalize utility installation.
Technical Extent & Specifications⭐
| 項目 (Specification) | 技術能力與規格 (Capacity & Performance) |
| 適用管徑範圍 (Pipe Diameters) | 80mm 至 750mm |
| 最大施工長度 (Maximum Drive Length) | 可達 70 米 (Up to 70 meters) |
| 施工控制精度 (Installation Accuracy) | 優於 ±20mm (Better than +/- 20mm) |
| 導向與監控系統 (Guidance System) | 光學經緯儀攝影機即時監控 (Theodolite Camera Monitoring) |
| 適用管材種類 (Compatible Pipe Materials) | 黏土頂管 (Clay Pipes)、鋼套管 (Steel Casing)、HDPE管等 |
Applications & Utility Projects✅️
- Gravity Sewer and Stormwater Pipe Installation: High-precision slope control to ensure smooth drainage.
- Water Supply Main Renewal: Trenchless installation of water pipelines beneath busy roadways.
- Power and Telecom Conduit Installation (HDPE / Steel Pipe): Underground protective ducting for fiber optics and high-voltage cables.
- Crossings Under Highways, Railways, and Building Foundations: Trenchless pipeline installation beneath existing surface structures without disrupting them.
- Municipal Gas and Energy Pipeline Construction: Safe and reliable underground pipeline installation solutions.
Guided Auger Boring Process❗️
1.Pit Preparation
Construct the launching pit and receiving pit, install the thrust wall, and align the machine.
2.Pilot Rod Drilling
Use a theodolite camera to monitor the pilot head in real time and advance the pilot rod to the receiving pit at the predetermined angle.
3.Auger Reaming
After the pilot rod reaches the receiving pit, perform auger reaming to enlarge the borehole while simultaneously discharging the excavated soil back out.
4.Pipe Jacking
Progressively jack clay pipes or steel pipes into place, complete the pipeline installation, and carry out site restoration.
Guided Auger Boring FAQs❓️
How is the construction accuracy of Guided Auger Boring ensured?
We utilize a theodolite camera system in the launch pit to continuously monitor the steering head. This live tracking allows real-time optical adjustments, maintaining accuracy within +/-20mm.
What pipe diameters and distances are suitable for Guided Auger Boring?
Our equipment handles pipe diameters ranging from 80mm to 750mm, with a maximum single drive length of up to 70 meters.
What are the advantages of Guided Auger Boring compared to open-cut pipe laying?
Open-cut trenching requires extensive road closures and bulk excavation. Guided auger boring requires only two small shafts, significantly reducing traffic disruption, project timelines, and reinstatement costs.