Water-rich stratum slide-resistant pile dado reinforced structure

Abstract

The invention discloses a water-rich stratum slide-resistant pile dado reinforced structure which is arranged on the outer side of a rainfall water pumping and discharging pipe system on one side of a railroad bed. A row of water-rich stratum slide-resistant pile dado reinforced structures are arranged along the railroad bed. The water-rich stratum slide-resistant pile dado reinforced structure is matched with the rainfall water pumping and discharging pipe system. Rainfall well points are further arranged on the rainfall water pumping and discharging pipe system. The water-rich stratum slide-resistant pile dado reinforced structure comprises an outer-layer rebar mesh sheet and an inner-layer concrete dado. A plurality of rows of annular I-beams are arranged on the inner side of the rebar mesh sheet and arranged inside the concrete dado from top to bottom. A plurality of parallel slip casting sprayed molten steel tubes are arranged on the periphery of the reinforced structure in an inclined drilling mode from the concrete dado to a water-rich stratum. The water-rich stratum slide-resistant pile dado reinforced structure is combined with well point rainfall measures, the set of water-rich stratum slide-resistant pile excavation technology integrating reinforcing, rainfall, excavation, casting forming and the like is formed, the quantity of underground water inside a foundation trench is reduced, and the excavation working efficiency is improved.

Description

technical field [0001] The invention relates to an underground structure reinforcement structure constructed by an underground open cut method, in particular to an anti-slide pile wall reinforcement structure suitable for anti-slide piles in water-rich areas such as railways, highways, and water conservancy areas. Background technique [0002] The construction of anti-slide piles is mainly manual digging to form piles. It is difficult to excavate and form anti-slide piles in fully weathered strata with well-developed groundwater, and the retaining walls are easily deformed, resulting in extremely high safety risks. [0003] At present, well point dewatering measures are generally taken for this kind of stratum, but because the excavation depth of anti-slide piles is 10~30m, the efficiency of simple dewatering treatment is low, and the fully weathered stratum is affected by water, which makes it easy to collapse, difficult to form retaining walls, and easy to deform. Manual d...

AI Technical Summary

Problems solved by technology

[0002] The construction of anti-slide piles is mainly manual digging to form piles. It is difficult to excavate and form anti-slide piles in fully weathered strata with well-developed groundwater, and the retaining walls are easily deformed, which poses a high safety risk.

[0003] At present, well point dewatering measures are generally taken for this kind of stratum, but because the excavation depth of anti-slide piles is 10~30m, the efficiency of simple dewatering treatment is low, and the fully weathered stratum is affected by water, which makes it easy to collapse, difficult to form retaining walls, and easy to deform. Dangers of manual downhole operations

The use of rigid sheet piles or steel casings for protection is costly, and precipitation treatment is still required for operations at high water levels

Images