With the rapid development of urban construction recently, urban land is increasingly tight. In order to fully enhance the utilization of underground space, underground part of the high-rise buildings is also increasing with a larger and deeper excavation. During the excavation of deep foundation pit, it is necessary to adopt supporting measures to ensure the safe operation of surrounding buildings and the stability of deep excavation pit.
Metis® Hollow anchor bar technology is an efficient, economical ground reinforcement technology, which has been widely used in urban construction project. Later in 1990, with the rapid economic development of Guangdong Pearl River Delta, a large number of hollow anchor bars are used for deep foundation pit retaining piles and retaining wall support due to the limit of terrain and construction plant, which solves the difficulties of digging the basement and has the superiority of high efficiency, short construction period and cost low.
Because of these advantages, Metis® Hollow anchor bar is a better choice for high-rise buildings in the city. It can keep the stability of retaining structures and can effectively control the deformation of foundation pit, playing an important role in deep foundation pit support.