基于瑞典條分法的溝道邊坡穩(wěn)定性及支護(hù)方案研究

關(guān)鍵詞：邊坡；瑞典條分法；穩(wěn)定性分析；邊坡支護(hù)中圖分類號(hào)：TU432 文獻(xiàn)標(biāo)志碼：ADOI：10.19968/j.cnki.hnkj.1003-5168.2025.14.012文章編號(hào)：1003-5168（2025）14-0062-06

Research on Channel Slope Stability and Support Scheme Based on SwedishSliceMethod

CAO Xueye' BAI Xiaopeng2JI Jiaqiang？

（1.School ofCivilEngineering，Yan'an University，Yan'an716ooo，China;2.StateKeyLaboratory forTunnel Engineering，School of Mechanics and Civil Engineering，China Universityof Mining amp; Technology（Beijing）， Beijing 10o083，China; 3.Capital Construction，Yan'an University，Yan'an 7160o0，China）

Abstract： [Purposes]To evaluate the stability of slopes and optimize eco-friendly support schemes for a gully regulation project in Gansu Province， China，in support of ecological conservation and high-quality development in the Yellow River Basin.[Methods] The stability factors for sections 16-16 ' and 18- 18 ' were calculated under four loading conditions （self-weight，reservoir water pressure，seismic excitation，and road load） using both the Swedish slice method and Lizheng Software.Two support options-a counterweight retaining wall and a pile-plate retaining wall—were evaluated for their effectiveness. [Findings] The results of the Swedish slice method aligned with those from Lizheng software.Under selfweight and water storage conditions，all sections achieved \"basically stable\" status， while they were in an \"under-stable\" state under seismic load. The 16-16^′ section was in an \"unstable\" state under road load. Both retaining wall types met the code requirements.[Conclusions] Considering economic eficiency，

constructability，and site conditions，the counterweight retaining wall is recommended as the optimal support scheme.While the pile-plate retaining wall offers greater flexibility and stronger lateral resistance， it requires more stringent foundation conditions and incurs higher material and maintenance costs.In comparison，the counterweight retaining wallfeatures mature construction techniques，bettr economic viability，and superior stability，making it more suitable for this project.

Keywords： slope; Swedish slice method; stability analysis; slope support

0 引言

邊坡工程是眾多工程領(lǐng)域中最常涉及的工程形式。近年來，隨著我國(guó)水利、交通、礦山等基礎(chǔ)設(shè)施建設(shè)的快速發(fā)展，黃土邊坡的穩(wěn)定性問題日益突出。黃土因其獨(dú)特的結(jié)構(gòu)性和濕陷性，在水文地質(zhì)條件變化及人類工程活動(dòng)的影響下，更易發(fā)生滑坡和坍塌等災(zāi)害[，嚴(yán)重威脅工程安全與生態(tài)安全。因此，研究邊坡的穩(wěn)定性及其支護(hù)方案顯得尤為重要。

近年來，國(guó)內(nèi)外學(xué)者針對(duì)邊坡穩(wěn)定性進(jìn)行了大量研究，形成了定性分析法、定量分析法和不確定性分析法等3類評(píng)價(jià)邊坡穩(wěn)定的方法2]，每種方法均有優(yōu)缺點(diǎn)及適用范圍。在定量分析中，最常用的方法是極限平衡法，其中瑞典條分法（Fellenius法）因其計(jì)算簡(jiǎn)便、參數(shù)易獲取、適用性強(qiáng)等優(yōu)點(diǎn)，被廣泛應(yīng)用于工程實(shí)踐中。王萬祿等基于瑞典條分法對(duì)某露天鐵礦采場(chǎng)邊坡穩(wěn)定性進(jìn)行了分析；陳東4基于理正軟件采用瑞典條分法和有限元仿真計(jì)算對(duì)高速公路下某邊坡的穩(wěn)定性進(jìn)行了分析；姚愛超[5在瑞典條分法的基礎(chǔ)上，運(yùn)用遺傳算法計(jì)算了某土坡的安全穩(wěn)定系數(shù)；蒙永樂研究了山區(qū)高速公路高陡邊坡的穩(wěn)定性及加固防護(hù)措施；楊校輝等提出了基于瑞典條分法的多級(jí)滑移面搜索模型，通過MATLAB編程實(shí)現(xiàn)了整體穩(wěn)定性評(píng)價(jià)，修正了傳統(tǒng)單級(jí)分析的局限性；蘇延平等8采用拋物線滑動(dòng)曲面替代圓弧滑動(dòng)面，通……