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About UsZHONGTAI HENGBANG Engineering Technology Co., Ltd. is located in the Academician Entrepreneurship Base of Tai'an National High-Tech Industrial Development Zone, Shandong Province. The company is a comprehensive service provider specializing in engineering consulting and design, materials R&D and manufacturing, as well as operations and maintenance. With strong technical expertise and robust R&D capabilities, its products are primarily applied in critical areas such as water conservancy infrastructure projects, transportation infrastructure initiatives, and environmental protection solutions for isolating and preventing leakage from urban waste and highly hazardous industrial solid waste.
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ProductsZHONGTAI HENGBANG Engineering Technology Co., Ltd. boasts production lines sourced from countries including Germany, Italy, Denmark, Belgium, and Switzerland, adhering to rigorous quality management systems and testing standards. We are equipped with advanced testing equipment capable of evaluating tensile strength, creep resistance, UV protection, water permeability, flame retardancy, antistatic properties, chemical corrosion resistance, and oxidation performance.
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Application CasesThe product is primarily used in hydraulic infrastructure projects, transportation infrastructure projects, and environmental protection applications—including the isolation and impermeability of municipal waste and highly hazardous industrial solid waste.
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BlogPrioritizing technological advancement and innovation, our company is committed to fulfilling user needs to the fullest extent possible.
Discussion on Railway Tunnel Waterproofing and Drainage Construction Techniques: Focus on Drainage System Implementation
Release date:
2020-10-03
Today, ZHONGTAI HENGBANG is here with you to discuss the key technical aspects of tunnel drainage system construction.
(1) Circumferential Drainage Pipe Installation: During the construction of circumferential drainage pipes, the pipes should be installed snugly against the support surface or laid along the water-permeable rock wall. For circumferential pipes, smooth and continuous routing is essential—any unevenness or undulations must be avoided. Each fixing point can be created by cutting leftover edges from waterproof boards into narrow strips approximately 2 cm wide. These strips are then used to securely tie the blind pipes in place, with both ends anchored to the rock surface using steel nails. Note that the nail heads should sit slightly below the initial support surface, and U-shaped clips are recommended for final securing. The spacing between fixing points should be maintained at 50–80 cm along the arch section and 80–100 cm along the sidewalls. 2.1.2 Longitudinal Drainage Pipe Installation: For longitudinal drainage pipes, proper installation requires positioning them at a depth of 20 cm below the inner rail level. After installation, ensure the pipes align precisely with the tunnel’s natural slope to maintain unobstructed drainage flow. The fixing points for longitudinal pipes follow the same method as those used for circumferential drains, with an approximate spacing of 100 cm. Additionally, wrap the drainage pipes with geotextile fabric to prevent cement mortar from infiltrating and blocking the system.
(2) Construction of sidewall drainage pipes. When installing the sidewall drainage pipes, the first step is to properly position the formwork trolley. The trolley must be aligned precisely so that the drainage pipe’s position matches the diameter of its corresponding hole. Securely connect one end of the drainage pipe to the drain line, while the other end is fitted into the pre-drilled opening on the formwork trolley. If water accumulates at the bottom during construction, it should be drained off immediately.
(3) Drainage at the tunnel portal. The complete drainage system also includes top-level drainage facilities, requiring the installation of water-interrupting gutters at the summit. These gutters should be positioned 5–10 meters away from the top of both natural and cut slopes, with the specific slope angle determined based on site conditions—but ideally kept below 3‰ to prevent sediment buildup. Regular inspections are essential to ensure the portal blind ditch system remains unobstructed; if blockages are detected, they must be promptly cleared.
Tunnel-specific Sichuan Luzhou EVA Waterproof Board , widely used in various transportation projects, construction projects, water conservancy projects, and environmental protection projects:
Transportation Engineering: Waterproofing and seepage control projects for tunnels, subways, highways, caverns, bridges, and more;
Construction Engineering: Waterproofing and Leak-Proofing for Roofs, Basements, and More.
Hydraulic engineering: Projects such as reservoir dams, cofferdams, canals, and other structures designed for waterproofing and preventing seepage.
Huan Protection Engineering: Waterproofing for landfill sites, sewage treatment plants, metallurgical facilities, chemical plants, and other projects requiring water resistance, impermeability, or moisture-proofing measures.
Sichuan Luzhou EVA Waterproof Board Product features are summarized as follows:
1. Sichuan Luzhou EVA Waterproof Board Using YO-quality ethylene-vinyl acetate copolymer—a thermoplastic with rubber-like elasticity—gives the finished product excellent flexibility. Handling details such as edges, corners, and pipes becomes remarkably simple and quick.
2. Sichuan Luzhou EVA Waterproof Board High tear resistance, excellent puncture resistance, waterproof and anti-seepage properties, and superior hydrolysis resistance;
3, Sichuan Luzhou EVA Waterproof Board Specifically incorporating the Kang microbial agent into the material prevents microbial erosion, effectively extending the product's shelf life and lifespan.
4. Sichuan Luzhou EVA Waterproof Board It has excellent root-resistant properties, making it particularly suitable for rooftop gardening.
5, Sichuan Luzhou EVA Waterproof Board It exhibits broad adaptability to adhesives and can bond well with a variety of adhesive materials.
6, Sichuan Luzhou EVA Waterproof Board There are no specific requirements for the moisture content at the base level. As long as there is no visible water, construction can proceed as usual—and it will have no impact on the quality of the work.
7, Sichuan Luzhou EVA Waterproof Board Offers excellent aging resistance, with a service life of over 50 years when buried underground;
8, Sichuan Luzhou EVA Waterproof Board It exhibits excellent low-temperature flexibility, maintaining good pliability even at -30°C.
9, Sichuan Luzhou EVA Waterproof Board Made from non-toxic, eco-friendly materials.
ZHONGTAI HENGBANG Engineering Technology Co., Ltd. is a comprehensive service provider integrating engineering consulting and design, material R&D and manufacturing, as well as operations and maintenance. The company boasts strong technical expertise and robust R&D capabilities, with its products primarily applied in environmental protection fields such as hydraulic infrastructure projects, transportation infrastructure initiatives, and the isolation and impermeability solutions for urban waste and hazardous industrial solid waste management. Equipped with cutting-edge production lines sourced from Germany, Italy, Denmark, Belgium, Switzerland, and other countries, ZHONGTAI HENGBANG adheres to stringent quality management systems and rigorous testing standards. Its state-of-the-art equipment ensures thorough evaluations of critical properties, including tensile strength, creep resistance, UV durability, water permeability, flame retardancy, antistatic performance, chemical corrosion resistance, and oxidation stability. The company has successfully obtained certifications such as CRCC, ISO 9001, ISO 14001, OHSAS 18000, and MA certificates, along with inspection reports issued by China’s Ministry of Railways and Ministry of Water Resources, the EU CE certification, and approvals from specialized laboratories in Russia, Australia, the United States, and other regions. ZHONGTAI HENGBANG is dedicated to delivering top-quality geosynthetic materials and unparalleled services for a wide range of projects, including reinforced soil retaining walls, soft ground stabilization, land reclamation and embankment construction/maintenance, hydraulic engineering, slope remediation and ecological restoration, road construction, and mining projects.
Consultation Phone: 13953856388
Contact: Mr. Zhang
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ZHONGTAI HENGBANG Technology Co., Ltd.
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