Study On Durability Of Anti-slide Pile In The Erosive Environment With Acid Rain

Slides are a kind of harmful natural calamities which usually occur in the mountainareas. Serious slides causes great losses. As one of the most widely used constructionsin treating slides, the anti-slide pile bring into play a great function. In order to attain thedesign working life, we must attach importance to the durability of the anti-slide pile.As an industry city in southwest areas, Chongqing locates in the geological calamityporosity area and the acid rain is become frequent along with the rapid development ofindustry. The acid rain could arouse the soil acidification, which could create biginfluence to the durability of the anti-slide pile. On the bases of simulation test about theanti-slide pile with erosive acid rain, this paper get study on durability of anti-slide pilein the erosive environment with acid rain.Anti-sliding piles belong to underground structure, they work under stress in dankcondition. On the bases of literature and research conclusions, the paper summarizes theneutralization encroach principle about acid rain act on the concrete and analyses theeffect of the interaction of anti-slide pile and erosive acid rain to anti-slide piledurability. Through the simulation test about the acid rain eat into anti-slide pileconcrete, observe the surface and microcosmic change of the concrete; record thechange of the concrete mass、pressure and neutralization depth in different dry-wetcycle，then summarize its change law with the test data.The stress condition have a great influence on concrete neutralization. Theneutralization degree of anti-slide pile concrete is different from with stress to withoutstress, and the neutralization degree is vary within different stress condition. Summarizeits change law of the concrete neutralization degree with the test data, then establish thesimulation and prediction model about anti-slide pile concrete neutralization consider itsinfluencing factors. The steel-bar would become to rust when the anti-slide pile concreteneutralization depth up to a certain extent. Forecast the service life of anti-slide pile usethe steel-bar cross section allowable corrosion rate as the end standard to measure theanti-slide pile durability. Through an engineering example to validate the feasibility ofthe standard.The article supported by Chang jiang Scholars and innovative research team fundedprograms...