A combination layout method of pile plate retaining wall and culvert

Abstract

The invention discloses an arranging method of a pile-plate retaining wall and culvert combination. The arranging method includes following steps: 1), determining central mileage X, width D and anglealpha of a culvert; 2), determining small-mileage direction pile central mileage K1, large-mileage direction pile central mileage K2 and pile central spacing L of anchoring piles; 3), determining pilethickness d and pile width b of the anchoring piles on two sides of the culvert until shearing-resistant and bending-resistant inspection and calculation requirements of the pile-plate retaining wall, and arranging corresponding anchoring piles on two sides of the culvert; 4), according to structural stress design of the culvert, arranging a corresponding soil retaining plate on the top face at an outlet end of the culvert; 5), sealing or filling gaps between an outlet structure of the culvert and adjacent anchoring piles and the soil retaining plate. The arranging method meets technical requirements on antiskid stability of a steep-slope roadbed and flood drainage, irrigation and traffic of the culvert and avoids the problems of difficulty and conflict in linking the pile-plate retainingwall and the culvert.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a method for arranging the combination of a pile plate retaining wall and a culvert. Background technique [0002] When railway and highway projects pass through steep slopes and high-fill areas, the subgrade engineering often needs to be equipped with pile-slab retaining walls to play the role of support and slope closure, to meet the anti-sliding stability requirements of the subgrade engineering, to avoid the existence of high-fill subgrades on slopes, so as to reduce or eliminate Project hidden dangers; at the same time, in order to meet the requirements of flood drainage, irrigation and transportation, culvert works must be set up within the lot area at the same time. However, conflicts often occur due to the difficulty in connecting the pile-slab retaining wall with the culvert. In previous designs, only one of the two could be chosen, which may leave long-...

AI Technical Summary

Problems solved by technology

Replacing the subgrade pile-slab retaining wall with a gravity retaining wall, the connection between the gravity retaining wall and the culvert can solve the problem of the connection with the culvert. Larger, the gravity retaining wall is difficult to withstand a large sliding force, and slope filling or other anti-sliding auxiliary measures have to be taken, which may leave a safety hazard to the long-term stability of the project

Adjusting the position of the culvert or canceling the setting of the culvert will affect the drainage effect of the high-fill roadbed on steep slopes to varying degrees, causing water accumulation and siltation to soften the base layer of the roadbed, thereby deteriorating the stability of the roadbed

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