Abstract: The design, construction and monitoring technology of deep foundation pit support is a technical problem gradually involved in China in recent 10 years. The wall protection of deep foundation pit requires not only the safety of normal operation in the foundation pit, but also the prevention of soil movement outside the foundation pit and the normal operation of buildings, roads and pipelines near the foundation pit. Through engineering practice and scientific research, the theory and technology of foundation pit support have been further developed and achieved gratifying results.

Keywords: deep foundation pit

pillar; mainstay

1. Selection of deep foundation pit support type

Deep foundation pit support requires not only slope stability, but also deformation control to ensure the safety of buildings, underground pipelines and roads around the foundation pit. Nowadays, the supporting structure is more and more perfect, and many new supporting structure forms and methods have appeared to stabilize the slope.

According to the actual situation in this area, after comparison, bored piles are adopted as the enclosure structure. Because the excavation area is mainly cohesive soil, it has certain self-stabilizing structural characteristics. Therefore, the slope protection piles are supported by interval reinforced concrete bored piles and soil anchors. The retaining structure is arranged as follows:

This article comes from

I love paper net (

www.5ilunwen.com

)

Original link:

/a/ligonglunwen/2 102 . html