Key Construction Points for Geogrid Installation
Contact: Manager Hou, Mobile: [Insert Phone Number]
**1. Pre-construction Preparation**
Before starting the geogrid installation, it is essential to thoroughly review all relevant technical documents and construction specifications. This ensures that all procedures are carried out in compliance with the required standards. Prior to laying the geogrid, the subgrade elevation should be measured accurately. Additionally, the physical and mechanical properties of the geogrid, such as tensile strength and elongation, must be tested to ensure they meet the design requirements before installation.
**2. Labor Organization and Major Equipment**
Each subgrade team consists of 8 workers equipped with hammers, pliers, 8-gauge wire, and U-shaped nails. Proper tools and trained personnel are crucial to ensuring a smooth and efficient installation process.
**3. Trial Section Laying Process**
The installation process includes several key steps: subgrade leveling, sectional laying, lap connection, end reverse processing, and securing with U-shaped nails. These steps are critical to achieving proper alignment and stability.
**4. Construction Methods**
- The geogrid material must meet the technical specifications outlined in the drawings, with a tensile strength of at least 40 kN/m and an elongation rate below 10%. Only after passing the tests should it be installed.
- The geogrid should be laid along the longitudinal direction of the embankment.
- Each geogrid segment should overlap by 20 cm and be connected using 8-gauge wire.
- A 1-meter reverse section of the geogrid should be reserved and fixed to the lower grid using U-shaped nails.
- At the junctions between cut and fill areas, if the fill length exceeds 10 meters, the geogrid embedded in the excavation area should be at least 6 meters long, while the part in the fill area should be no less than 10 meters. If the fill length is less than 10 meters, the geogrid should extend into the fill area, with the embedded portion in the excavation area being at least 3/5 of the fill length.
**5. Important Notes to Consider**
- When laying the geogrid, it should be oriented perpendicular to the embankment axis, ensuring maximum tensile strength.
- The soil surface where the geogrid is placed must be smooth and free of sharp objects like rocks or debris. After installation, the geogrid should be covered with fill material promptly to prevent prolonged exposure to sunlight. The interval between installation and filling should not exceed 48 hours.
- The geogrid should be covered with soil fill. All vehicles and machinery must only travel along the embankment axis to avoid damaging the geogrid.
- Care must be taken during construction to prevent any damage to the geogrid, ensuring the quality and integrity of the project.
- The geogrid should be laid straight and smoothly, avoiding wrinkles or distortion that could affect its performance.
**Contact Information:**
Manager Hou
Address: Taian, Shandong
Phone: [Insert Phone Number]
Fax: [Insert Fax Number]
Email: [Insert Email Address]
Company Website: http://geshan123.chinawj.com.cn
News Submission: http://news.chinawj.com.cn
This detailed guide ensures that geogrid installation is carried out efficiently, safely, and in accordance with best practices.
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