Row pile anchoring cement soil pile continuous wall supporting structure and construction process thereof

Abstract

The invention relates to a row pile anchoring cement soil pile continuous wall supporting structure. The row pile anchoring cement soil pile continuous wall supporting structure comprises a concrete pavement, row piles, a total-length bonding anchor rod and a single row of cement soil pile continuous wall or multiple rows of cement soil pile continuous walls; the concrete pavement is arranged along the side wall of a foundation trench, and the row piles are close to the concrete pavement to be arranged in the side wall of the foundation trench; and the total-length bonding anchor rod is arranged between the row piles, the front end of the total-length bonding anchor rod is fixed to the concrete pavement through an anchor plate or a prestress locking device, and the tail end of the total-length bonding anchor rod is inserted into the cement soil pile continuous wall / cement soil pile continuous walls in a downwards-inclined manner. According to the supporting structure, the total-length bonding anchor rod is adopted, a stress mechanism is similar to that of a soil nail, and the axial force is small in two ends and large in middle in the length direction, and therefore the axial force of the ends of the anchor rod in the supporting structure is small, and the force transmission effect can be achieved only by arranging the small anchor plate and being in cooperation with the concrete pavement.

Description

technical field [0001] The invention relates to the technical field of foundation pit support, in particular to a continuous wall support structure of row piles anchored by cement-soil piles and a construction process thereof. Background technique [0002] When the foundation pit is deep and the surrounding underground space is narrow, such as basements, subway tunnels, etc., the support schemes that can be used include: row piles + large-angle prestressed anchor support, row pile inner support, continuous wall inner support, etc. Support support. [0003] Among them, the pile row + large-angle prestressed anchor support uses a large-angle anchor to prevent the anchor from adjacent buildings and structures. The anchor in this support form has a large axial force and a long length. The contribution to the balance of horizontal earth pressure is small, resulting in a large waste. [0004] The construction of row piles or internal supports of diaphragm walls is difficult and ...

AI Technical Summary

Problems solved by technology

[0003] Among them, the pile row + large-angle prestressed anchor support uses a large-angle anchor to make the anchor avoid adjacent buildings and structures. The anchor of this support form has a large axial force and a long length. The contribution to the balance of horizontal earth pressure is small, resulting in a large waste

[0004] The construction of row piles or support inside the continuous wall is difficult and expensive, and has a great impact on the construction period

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