With the gradual deepening of underground space development and utilization, people’s awareness of underground property rights continues to increase.
Anchor rods anchored outside the foundation pit will be difficult to cross the “red line” of the site, and internal support will become the primary choice for the foundation pit support system.
The advantages of concrete support are high stiffness, strong adaptability, and the ability to form large excavation spaces.
The disadvantages are long construction and demolition periods, low resource utilization, and the generation of a large amount of construction waste; The advantages of steel supports are that they are easy to install and dismantle, reusable, and environmentally friendly.
However, the disadvantages include low stiffness, poor stability, difficulty in ensuring excavation space, and limited economic efficiency due to the construction period.
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