In the construction process of photovoltaic power stations, ground nails are important components that connect photovoltaic brackets to the ground. Their selection and application are directly related to the stability, safety and long-term operation of the entire system.
In this article, Yu Jinxiang's editor will discuss in detail the common types of photovoltaic ground nails and their respective characteristics from a practical perspective, in order to provide a strong reference for the implementation of photovoltaic projects.
--Spiral ground nails
Features:
1. High bearing capacity: Spiral ground nails enter the ground by rotation, forming a strong grip, which can effectively resist external forces such as wind load and snow load.
2. Convenient installation: The installation is simple and fast by rotating, and the damage to the soil is small.
3. Strong adaptability: It is suitable for a variety of soil types, including soft soil, hard soil, etc., and has a wide range of applications.
--Application scenarios:
Spiral ground nails are widely used in various photovoltaic power station projects, especially in areas with complex ground conditions. Their superior bearing capacity and adaptability make them the first choice.
-- U-shaped ground nails
Features:
1. Simple structure: U-shaped ground nails are bent into a U shape by a metal rod, and the structure is simple and clear.
2. Low cost: Compared with other types of ground nails, the manufacturing cost of U-shaped ground nails is relatively low.
3. Easy installation: Just insert the U-shaped ground nail into the ground and fix it. The installation process is simple and fast.
--Application scenario:
U-shaped ground nails are suitable for photovoltaic power station projects with relatively stable ground conditions and small wind and snow loads, such as roof photovoltaic power stations.
--Cast-in-place pile ground nails
Features:
1. Good stability: Cast-in-place pile ground nails fix the bracket by pouring concrete or cement slurry into the ground, which has high stability and pull-out resistance.
2. Strong durability: Due to the use of concrete or cement slurry as filling materials, cast-in-place pile ground nails have a long service life.
3. Wide range of applications: Applicable to various geological conditions, including soft soil, hard soil, rock, etc.
--Application scenario:
Casking pile ground nails are suitable for large-scale photovoltaic power station projects, especially for areas with complex ground conditions and long-term stable operation.
-- Expansion bolt type ground nail
Features:
1. Easy installation: The expansion bolt type ground nail is fixedly connected to the ground through expansion bolts, and the installation process is simple and fast.
2. Strong adjustability: The length and diameter of the bolt can be adjusted as needed to adapt to different ground conditions and bracket requirements.
3. Moderate cost: Compared with cast-in-place pile type ground nails, the cost of expansion bolt type ground nails is lower, but the performance is still reliable.
--Application scenario:
Expansion bolt type ground nails are suitable for small and medium-sized photovoltaic power station projects, especially for areas with relatively stable ground conditions and limited budgets.
In summary, photovoltaic ground nails are an indispensable part of photovoltaic power station construction, and their types and characteristics are diverse.When choosing ground nails, comprehensive consideration should be given to factors such as the specific needs of the project, ground conditions, and budget to ensure the stability, safety, and long-term operation of the photovoltaic power station.
At the same time, with the continuous development and innovation of photovoltaic technology, more new ground nail products may appear in the future, providing more choices and possibilities for the construction of photovoltaic power stations.
