Mechanism Analysis And Application Of Resistant-pile In Engineering

Landslide is one kind of important geological disaster, and it brings about great threat to human beings life and property. Landslide controling is an anti-disaster project that needs lots of invests,and the technology is complicated, being under construction project. Landslide stabilizing pile become one of the most typical side slope blocking structure, stagnate over to whose job mechanism and applicative research of project late than project reality among controling in large-scale side slope. At present great majority landslide stabilizing pile exists problems of over assurance coefficient, architectural resist-slide ability can not use fully. So it is significant to pay attention to the mechanism analysis of stabilizing pile, therefore the analysis must strengthen studying, make use of with effective ensuring investment, more important being ensures that what be invested in a safety stabilizes, this is important to national economy. While the project carriy out, the technology often, unreasonable, being under construction since measure and construction being under construction organize has a mistake to result for effect to resist-slide pile construction mass being under construction, endangering even to the quality of resist-slide pile and builder's life.Different side slope project lies in the side slope geology environment that architectural designing of piles are different because of different engineering geology environment, and they having gigantic relation. Firstly the stability analysis method of side slope for service behaviour of resist-slide pile having important effect has carried out the main body in this studying, has reached the side slope stability method should choose corresponding to relatively to concrete side slope geology project condition; Seek danger slides most to crack already have had pretty mature theory. Secondly in the paper, the current situation of side slope consolidated and resistant-slide pile to block theory having been carried out studying, having reached to resistant-slide blocks theory still remaining in many questions; To the landslide thrust force computation existence question, the landslide thrust force transmission mechanism as well as the anti-slippery pile design variable conducts the analysis research to its operating performance influence, and obtained a few meaningful conclusions. Finally carries on this article theory union project example to the concrete anti-slippery pile project question the computation and the contrast, reach the thesis theoretical formula has certain value suitable for use, the assurance coefficient responding to relatively is more rational; And resist-slide pile construction method having been in progress studying. The thesis concentrate on being third chapters and fourth chapters, the delivery mechanism between resist-slide pile carries out third chapters on landslide-thrust by building the soil arching model in the slope body with resisting studying, and deduce out a little theoretical formula such as pile spacing ascertaining that, soil arching effect range, resisting accept force size, soil arching load support capability size; Fourth chapters have carried out the meaningful conclusion having studied and reaching a few to guide project practice by adopt the different cross section dimension, anchoring segment length, anchoring rock mass intensity and cross section form of the pile body to resist-slide pile's respectively accepting the force function.The thesis is innovative mainly burning as follows:1. Several kinds soil arching theory in side slope project has carried out analysis face to face at present, has thought that soil pushes sliding not only in resisting between piles and the pile existence, existence is also local behind the pile arch, the soil arching model here, having built the landslide-thrust and having resist-slide to interact on the basis.2. Have studied by the fact that the coactions mechanism being a model's turn to resist-slide pile and the landslide body has been in progress, have suggested that the action range that soil pushes is that the leading edge arrives at this one vault distance that pile body of the soil pushes along landslide direction from resist-slide, have given corresponding calculation out and formula.3. And deduce the generality formula unearthing the condition that the arch forms being ascertaining that facing boundary post spacing, document [90] middle formula has been only a special case of the thesis, and has given a certificate to, point it out only when during the period of soil body inner friction angle (?)< 30°, be style's turn to be founded just now.4. Think that after the landslide-thrust acting on soil arching behind of the pile reaching load support capability, the soil arching betweem the piles work.;only biography pushes to pile room soil, passive soil body resistance produces a marked effect just now in the pile front during the period of the soil arch betweem the piles also reaches whose limit load support capability. The formula deducing out the size resist-slide to mount an acting force, now has a special case resisting formula however the thesis that the institute adopts when the slippery pile designs that the landslidethrust secretly schemes against.5. Deduces out the arching limit load support capability formula.