基于瑞典條分法的溝道邊坡穩定性及支護方案研究

關鍵詞：邊坡；瑞典條分法；穩定性分析；邊坡支護中圖分類號：TU432 文獻標志碼：ADOI：10.19968/j.cnki.hnkj.1003-5168.2025.14.012文章編號：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域中最常涉及的工程形式。近年來，隨著我國水利、交通、礦山等基礎設施建設的快速發展，黃土邊坡的穩定性問題日益突出。黃土因其獨特的結構性和濕陷性，在水文地質條件變化及人類工程活動的影響下，更易發生滑坡和坍塌等災害[，嚴重威脅工程安全與生態安全。因此，研究邊坡的穩定性及其支護方案顯得尤為重要。

近年來，國內外學者針對邊坡穩定性進行了大量研究，形成了定性分析法、定量分析法和不確定性分析法等3類評價邊坡穩定的方法2]，每種方法均有優缺點及適用范圍。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）因其計算簡便、參數易獲取、適用性強等優點，被廣泛應用于工程實踐中。王萬祿等基于瑞典條分法對某露天鐵礦采場邊坡穩定性進行了分析；陳東4基于理正軟件采用瑞典條分法和有限元仿真計算對高速公路下某邊坡的穩定性進行了分析；姚愛超[5在瑞典條分法的基礎上，運用遺傳算法計算了某土坡的安全穩定系數；蒙永樂研究了山區高速公路高陡邊坡的穩定性及加固防護措施；楊校輝等提出了基于瑞典條分法的多級滑移面搜索模型，通過MATLAB編程實現了整體穩定性評價，修正了傳統單級分析的局限性；蘇延平等8采用拋物線滑動曲面替代圓弧滑動面，通……