Lianggong Trench Box (LG-T100) stands as a first choice for municipal engineering, pipeline installation, and foundation excavation—combining high-strength steel construction, easy assembly, and flexible adjustment to meet the demands of trenches up to 5.6m deep. Designed for stability, efficiency, and reusability, our trench box is trusted by contractors worldwide for protecting workers and preventing soil collapse during critical underground operations.
Why Makes Our Trench Box the Best Choice for Construction?
Lianggong Trench Box stands out as a leader in trench shoring system, thanks to its unparalleled advantages that address the core needs of construction teams worldwide:
● Superior Safety & Stability: Trench box withstands maximum earth pressure of 84 kN/m², effectively preventing trench cave-ins even in unstable soils. Its robust panel design (100mm thickness) and secure connections ensure structural integrity, providing a safe working environment for underground teams.
● Flexible Adjustment for Diverse Needs: Trench width adjusts from 1.20m to 4.60m via standard spindles. For deeper trenches, top panel and connector enable height extension, adapting to project-specific depth and pipe clearance requirements (pipe clearance height up to 1.3m).
● Rapid Assembly & Disassembly: Modular components (base panel, top panel, spindle, mushroom spring) feature simple pin-and-clip connections, allowing on-site assembly in hours— no complex tools required. Trench box can be fully pre-assembled off-site and lifted into place with a 12–30t excavator or tower crane, slashing construction time.
● Exceptional Reusability & Durability: Steel construction and corrosion-resistant design support repeated turnover across multiple projects, reducing material waste and long-term costs.
● Adaptable to Multiple Soil & Project Types: Ideal for municipal sewer lines, gas/electric pipeline installation, basement foundations, and road culvert projects. Performs reliably in stable and unstable soils, eliminating the need for costly sloping or piling in narrow trench applications.
What Are Specifications of Lianggong 100 Trench Box?
● Maximum Trench Depth: 5.6m.
● Trench Width Range: 1.20m–4.60m.
● Panel Material: 100mm-thick high-strength steel (Q235/Q355) for heavy load-bearing.
● Pipe Clearance: Height up to 1.3m, accommodating most utility pipe sizes.
● Maximum Permissible Earth Pressure: Up to 84 kN/m².
What Are Core Components of Lianggong 100 Trench Box?
Each our trench box is composed of high-quality, precision-engineered parts that ensure stability and ease of use:
Base panel and Top panel: 100mm-thick steel panels providing structural core support against soil pressure.
Spindle or Strut: Spindle or strut is used to adjust trench width, strut can be easily adjusted in 100mm increments using standardized holes.
Spindle Strut
Mushroom Spring: Mushroom spring enables slight tilting for easy alignment—securing with Φ30 pins and spring pins.
Connector: Join base and top panels for height extension, ensuring stable integration.
Protection Rail: Safeguard panels from damage, extending service life.
How to Install Trench Box?
Installing our trench box is straightforward, even for on-site teams with basic training:
Prepare the Site: Excavate the trench to the required initial depth (max 1.25m for base box installation) and ensure the ground is flat and stable.
Assemble Base Panels: Place base panel on a flat surface, insert mushroom springs into panel tracks, and secure with Φ30 L=175mm pins.
Install Spindles: Attach spindles to mushroom springs, secure with Φ30 L=155mm pins, and adjust to the desired trench width.
Lift & Position: Use a tower crane or excavator to lift the assembled base box into the trench, aligning it properly.
Secure & Extend: Fill gaps between the box and soil, then repeat the process for top boxes or additional sections (for deeper trenches) using connectors.
Final Checks: Ensure the shoring width is slightly wider at the bottom (+3-5cm) for stability, and verify all pins and clips are securely fastened.
What Are Ideal Applications of Lianggong Trench Box?
LG-T100 Trench Box is versatile enough for diverse underground projects:
● Municipal Engineering: Shoring for drainage, sewer, and water pipeline excavation.
● Public Utilities: Installation of gas pipelines, power cables, and fiber optics.
● Building Foundations: Support for basement and pile foundation trench excavation.
● Road Construction: Underground passageways, culverts, and highway utility projects.
Why Choose Lianggong Trench Box?
As a leading trench box expert with years of experience, Lianggong is committed to delivering top-tier products and services:
● Expertise: Specialized in trench shoring system, with a focus on safety and innovation.
● Quality Assurance: All products are manufactured to strict standards, with thorough inspections before delivery.
● Customization: Tailor-made solutions to meet unique project requirements (trench width, trench depth, pipe clearance).
● Global Support: Responsive sales and technical teams available to assist with installation, maintenance, and troubleshooting.
● Sustainable Design: Reusable components reduce environmental impact and lower project costs.
Ready to elevate your trench excavation with a safe, efficient, and adaptable shoring solution? Click to explore detailed technical drawings, assembly guides, and customized quotes. Let Lianggong 100 Trench Box protect your team and power your underground projects—safely, reliably, and cost-effectively.
How to Contact Us?
Company: Yancheng Lianggong Formwork Co., Ltd.
Website: https://www.lianggongformwork.com https://www.fwklianggong.com https://lianggongform.com
Email: sales01@lianggongform.com
Tel: +86-18201051212
Address: No.8 Shanghai Road, Jianhu Economic Development Zone, Yancheng City, Jiangsu Province, China
Post time: Mar-19-2026