本文選題：順層滑坡　切入點(diǎn)：抗滑樁　出處：《西安科技大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：近年來(lái)府谷縣為了適應(yīng)縣域經(jīng)濟(jì)快速發(fā)展,并解決建設(shè)用地少的問(wèn)題,進(jìn)行了大面積的挖山填溝和大型工程建設(shè)。因受構(gòu)造(北西向單斜構(gòu)造)、地層結(jié)構(gòu)(煤系地層的砂泥巖互層)和軟弱結(jié)構(gòu)帶(泥巖)的控制,在開挖坡腳和剝挖上覆硬殼層的人類工程活動(dòng)誘發(fā)下,府谷縣境內(nèi)山體西側(cè)已形成并廣泛發(fā)育基巖順層滑坡。此類滑坡多采用刷方減載+抗滑樁支檔+坡面防護(hù)+排水系統(tǒng)的綜合治理方案,為了確定技術(shù)可行和經(jīng)濟(jì)合理的抗滑樁支檔措施,以府谷縣典型巖質(zhì)順層滑坡——陰塔溝滑坡為例,對(duì)抗滑樁設(shè)計(jì)進(jìn)行優(yōu)化研究并進(jìn)行了方案對(duì)比分析,主要研究結(jié)論如下:1)對(duì)抗滑樁設(shè)計(jì)要素進(jìn)行了正交設(shè)計(jì)試驗(yàn),得出了抗滑樁設(shè)計(jì)參數(shù)對(duì)抗滑樁性能的影響程度由大到小的順序?yàn)?樁間距、錨固深度、樁截面長(zhǎng)度、樁截面寬度;2)基于敏感性分析結(jié)果,通過(guò)對(duì)抗滑樁設(shè)計(jì)要素單因素分析,得出了隨設(shè)計(jì)參數(shù)改變抗滑樁內(nèi)力的變化規(guī)律,并提出了樁間距和錨固深度的合理性取值范圍;3)通過(guò)編寫計(jì)算機(jī)程序,以抗滑樁的工程造價(jià)為目標(biāo)函數(shù)、抗滑樁的樁身截面尺寸為變量,計(jì)算了樁身截面尺寸最優(yōu)值;4)最后將優(yōu)化后的設(shè)計(jì)方案與原設(shè)計(jì)方案進(jìn)行對(duì)比分析,得出最優(yōu)的抗滑樁設(shè)計(jì)方案。
[Abstract]:In recent years, in order to adapt to the rapid development of the county economy and solve the problem of lack of construction land, A large area of excavating and filling trenches and large scale projects were carried out, which were controlled by structure (NW monoclinal structure), stratigraphic structure (sand and mudstone interbedded in coal measure strata) and weak structural zone (mudstone). Induced by human engineering activities to excavate the foot of the slope and to peel and cover the hard shell, The west side of the mountain body in Fugu County has formed and widely developed bedrock bedding landslides. Most of these landslides adopt the comprehensive treatment scheme of brush-side anti-slide pile supporting slope protection and drainage system. In order to determine the feasible and economical anti-slide pile supporting measures, taking the typical rock-bedding landslide-Yindagou landslide in Fugu County as an example, the design of anti-slide pile was optimized and the scheme was compared and analyzed. The main conclusions are as follows: (1) orthogonal design test is carried out on the design elements of anti-slide pile, and the order of influence of anti-slide pile design parameters from large to small is as follows: pile spacing, anchoring depth, pile cross-section length. Based on the results of sensitivity analysis and single factor analysis of design elements of anti-slide pile, the variation law of internal force of anti-slide pile with design parameters is obtained. The reasonable value range of pile spacing and anchoring depth is put forward. By compiling computer program, the project cost of anti-slide pile is taken as the objective function, and the cross-section size of anti-slide pile is taken as variable. Finally, the optimum design scheme of anti-slide pile is obtained by comparing the optimized design scheme with the original design scheme.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU473.1;P642.22

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本文編號(hào)：1568894