Mud Pump for Trench Cutter in Metro Tunnel Diaphragm Wall Project in Southeast Asia
Project Overview: Slurry Circulation System for Diaphragm Wall Construction in Bangkok Metro Extension
Client: Leading Metro Construction Contractor
Location: Bangkok, Thailand
Project Duration: 10 months
Application: Slurry circulation and transport for trench cutter diaphragm wall construction
Project Background
A major metro line extension project in Bangkok required the construction of 8,500 square meters of diaphragm walls using trench cutter (hydrofraise) technology. The project involved excavating deep vertical trenches through soft alluvial clay, loose sand layers, and dense gravel formations, with wall depths reaching 45 meters.
The trench cutter system relies heavily on an efficient slurry circulation system to transport excavated material from the bottom of the trench to the surface desanding plant. The performance of the mud pump directly determines trenching speed, slurry density management, and overall project productivity. The contractor needed a reliable, high-capacity slurry pump capable of continuous operation under demanding conditions.
Challenges Faced
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High Abrasion Conditions: The gravel and sand layers caused severe wear on standard mud pumps, with conventional pumps requiring replacement every 2-3 weeks, resulting in costly downtime.
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Deep Trench Slurry Transport: With trench depths of 45 meters, the slurry pump needed sufficient head and suction capability to lift dense, solid-laden slurry from the cutter suction chamber to the surface.
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High Solids Content: The excavated slurry contained up to 30-40% solids by volume, demanding a pump design with excellent passage capability for gravel particles up to 50mm.
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Continuous Operation Requirements: The trench cutter operated in double shifts (up to 20 hours daily), requiring the mud pump to deliver consistent flow rates without overheating or performance degradation.
Solution: APIE Heavy-Duty Mud Pump for Trench Cutter
After evaluating several options, the contractor selected the APIE mud pump for trench cutter, specifically engineered for hydrofraise and trench cutter slurry circulation applications.
Key Equipment Features:
- Flow Rate: Up to 500 m³/h (sufficient for high-speed trenching)
- Head Capacity: Up to 60 meters (ideal for deep trench applications)
- Discharge Diameter: 150mm (handling large particle passage)
- Particle Passage: Up to 50mm gravel and rock fragments
- Impeller Material: High-chrome alloy (Cr27%) for superior abrasion resistance
The trench cutter mud pump offered several decisive advantages for this project:
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Superior Abrasion Resistance: The high-chrome alloy wetted parts, including impeller, volute liner, and throat bush, extended service life to 3-4 times longer than standard pumps, reducing replacement frequency dramatically.
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Efficient Slurry Transport: The optimized hydraulic design maintained stable flow rates even with high solids content, ensuring continuous evacuation of excavated material from the trench.
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Robust Sealing System: The mechanical seal with expeller design prevented slurry leakage and protected bearings, even under high-pressure backflushing conditions.
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Modular Maintenance Design: Key wear parts could be replaced in the field within 4 hours, minimizing downtime during critical trenching operations.
Project Results
Performance Metrics:
- Total Diaphragm Wall Area Completed: 8,500 m²
- Average Trenching Speed: 12.5 m²/h (35% improvement over previous pump system)
- Pump Service Life: 10+ weeks per wear parts set (vs. 2-3 weeks previously)
- Equipment Uptime: 97%
- Slurry Density Management: Consistently maintained at 1.1-1.25 g/cm³
The mud pump for trench cutter successfully supported the completion of all diaphragm wall panels within schedule. The extended wear parts life reduced pump-related costs by 40% compared to the contractor’s previous equipment, while the stable slurry circulation improved trench wall stability and reduced bentonite consumption by 15%.
Client Testimonial:
“The APIE mud pump transformed our trench cutter operations on
the Bangkok Metro project. The abrasion resistance is exceptional—we’ve never achieved this level of
wear parts life before. The stable slurry circulation also significantly improved our trench wall
quality. APIE has become our standard supplier for slurry pumping equipment."
— Equipment
Manager, Metro Construction Contractor
Why Choose APIE Foundation Equipment?
APIE FOUNDATION EQUIPMENT (CHINA) LIMITED specializes in manufacturing high-quality construction machinery and equipment accessories for foundation engineering worldwide. Our mud pumps for trench cutters are trusted by contractors across 40+ countries.
Our Advantages:
- 15+ Years of Manufacturing Excellence in foundation equipment accessories
- Complete Slurry Circulation Solutions for trench cutter and hydrofraise systems
- Compatibility with Bauer, Casagrande, Soilmec, and Liebherr trench cutter models
- Comprehensive Spare Parts Supply with fast global delivery
- Quality Assurance with CE, ISO, and international certifications
Contact Us for Your Next Project
Looking for a reliable mud pump for your trench cutter or slurry circulation system? APIE FOUNDATION EQUIPMENT provides professional solutions tailored to your project requirements.
📧 Email: apie@apiepiling.com
📱 WhatsApp: +86 189 2128 7030
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Website: www.apiefoundation.com
