城市地质
城市地質
성시지질
URBAN GEOLOGY
2015年
z1期
200-204
,共5页
石向菲%罗守敬%张国华%王珊珊
石嚮菲%囉守敬%張國華%王珊珊
석향비%라수경%장국화%왕산산
崩塌%景区公路%崩塌类别%稳定性分析
崩塌%景區公路%崩塌類彆%穩定性分析
붕탑%경구공로%붕탑유별%은정성분석
collapse%scenic highway%collapse category%stability Assessment
北京市山区分布景区众多,景区公路多以开挖山体边坡修建而成,存在较多崩塌隐患。本文以存在崩塌隐患较大且具有代表性的门头沟区妙峰山景区公路为例,分析其中K08+850m~905m段边坡崩塌形成的力学机制,确定崩塌类别,采用赤平投影法和极限平衡法两种边坡稳定性评价方法,结合北京特殊的气候,分析评价该边坡的稳定性,通过现场定性判别与定量计算相结合的方法评价其稳定性,为北京市景区公路崩塌稳定性评价提供参考。
北京市山區分佈景區衆多,景區公路多以開挖山體邊坡脩建而成,存在較多崩塌隱患。本文以存在崩塌隱患較大且具有代錶性的門頭溝區妙峰山景區公路為例,分析其中K08+850m~905m段邊坡崩塌形成的力學機製,確定崩塌類彆,採用赤平投影法和極限平衡法兩種邊坡穩定性評價方法,結閤北京特殊的氣候,分析評價該邊坡的穩定性,通過現場定性判彆與定量計算相結閤的方法評價其穩定性,為北京市景區公路崩塌穩定性評價提供參攷。
북경시산구분포경구음다,경구공로다이개알산체변파수건이성,존재교다붕탑은환。본문이존재붕탑은환교대차구유대표성적문두구구묘봉산경구공로위례,분석기중K08+850m~905m단변파붕탑형성적역학궤제,학정붕탑유별,채용적평투영법화겁한평형법량충변파은정성평개방법,결합북경특수적기후,분석평개해변파적은정성,통과현장정성판별여정량계산상결합적방법평개기은정성,위북경시경구공로붕탑은정성평개제공삼고。
Numerous scenic spots in Beijing are located in the mountain areas, and there are a lot of collapse hazards on the scenic highways mostly built by excavating mountain and slope. Taking the Miaofengshan scenic highway as an example, the formation mechanism and the category of the collapse in k08+850m~k08+905m part were analyzed in this paper, the slope stability was also evaluated by the stereographic projection method and the limit equilibrium method combined with the climate conditions in Beijing. The stability assessment of slope collapse on the Miaofengshan scenic highway using the qualitative and quantitative methods can provide reference for others scenic highways in Beijing.