Space protection structure for bridge foundation and on rock cone slope

Abstract

The invention provides a space protection structure for a bridge foundation and on a rock cone slope. The space protection structure for the bridge foundation and on the rock cone slope comprises protection piles arranged around a bridge pile foundation, coupling beams arranged at the pile tops of the protection piles, a middle coupling beam among the pile top coupling beams, a retaining wall andinter-pile concrete plates, wherein the protection piles are arranged at the outer side of a bridge pile foundation away from a side slope and the outer side of a bridge pile foundation close to the side slope, of the bridge pile foundation, and the protection piles at the two places are arranged in the shape of a quasi-triangle separately; the protection piles at the outer side of the bridge pilefoundation close to the side slope are distributed in the shape of an acute-angle quasi-triangle; the retaining wall is arranged above the tops of the protection piles; the protection piles at the outer side of the bridge pile foundation away from the side slope are distributed in the shape of an obtuse-angle quasi-triangle; the inter-pile concrete plates are arranged below the tops of the protection piles; the two parts of protection piles distributed in the shape of a quasi-triangle are connected by the pile top coupling beams separately; and the pile top coupling beams are connected by themiddle coupling beam. According to the space protection structure for the bridge foundation and on the rock cone slope, the shear force of the bridge foundation, which is caused due to the slide of arock cone, is eliminated, and the stress stability of the bridge foundation as well as the stability and the smoothness of an upper bridge structure are ensured.

Description

technical field [0001] The invention relates to the protection technology of bridge portal pile foundations on rock cone slopes in mountainous areas in the field of civil engineering construction. Background technique [0002] The rock cones are the long-term small-scale falling, collapsed and partially collapsed rock dregs of steep mountains and steep cliffs. They are accumulated in the lower part of the cliff, and the surface slope is close to its natural angle of repose. Under the action of its own weight, it will continue to slowly deform and move downhill, and its surface appears as a conical incomplete accumulation. The internal structure of rock cones often has duality due to periodic collapse-accumulation, that is, the rhythmic distribution characteristics of "bottom (layer) thick and upper (layer) fine" in the normal direction of the cone slope and the tangential aspect of the cone slope. The spatial distribution characteristics of "(slope) fine at the top (slope) ...

AI Technical Summary

Problems solved by technology

This kind of anti-sliding structure with in-line distribution on its upper and lower sides, purely uses the strength and stiffness of the anti-sliding pile itself to resist the downward deformation of the rock cone surface. The anti-sliding pile designed in this way, regardless of the length of the pile , pile diameter, pile distance and operability of construction all have very high requirements, the cost is expensive and safety cannot be fully guaranteed

Images