| Pile-plank wall is used in the field of slope reinforcement, especially in high-grade highways, more and more widely. Engineering community there is no more mature and unified design methodology, design and even more dependent on the design unit and the designer with engineering experience. The reason, the main force between such measures allocation mechanism is still not clear. For example, the force between the pile and board distribution mechanism and its calculation method, calculation method soil pressure on the board,there are to be further studied.The main reaserch in this thesis include:According to the engineering geological conditions of practical engineering, TaoYuan to BaZhong highway K103+920～K104+300slope, analyse the stability of the slope and calculate then size of the landslide thrust; The introduction of soil arching to the design of pile spacing of pile-plank wall, internal forces and reinforced area of pile in the case of considering the effects of soil arching, and provide a basis for the pile-plank wall structural design; Analyzed and discussed the relationship of soil arching between piles and retaining plate of the force, based on soil-arch effect of Coulomb earth pressure theory to calculate earth pressure on retaining plate and optimize the design of plate.This article first analyzes the pile-plank wall in the domestic and foreign research condition and the soil arch effect, and detailed engineering geological conditions of K1O3+92O～K104+300. Discussion in the relationship between this slope and the roadbed of highway. Based on the slope stability analysis, put forward the design of pile-plank wall, then design pile-plank wall in the case of considering. The analysis of pile spacing calculation method based on the soil arch effect, and the substituted to the calculation of internal forces of anti-slide pile, then there are studied size of active earth pressure on retaining board based on soil arch effect. |
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