摘要：1 工程概况麻湾灌区位于黄河三角洲地区黄河右岸,东营市城区西南。是列入全国大型灌区续建配套与节水改造项目的灌区。该节水改造工程,是对引黄闸至闫家泵站总干渠段实施全断面防渗、混凝土板衬砌渠坡与建筑物维修改造。渠道设计:流量60～30m^3/s;水深2.24m;底宽23.6～10.5m;边坡1:2;比降1/7000～1/6000。衬砌渠道长27.05km,新建。

摘要：陶岔闸是中线南水北调工程的渠首闸。1990年春，在闸上游左岸翼墙段，渠岸发生了大滑坡，该滑坡高12.5m、宽60m、坡长近60m、面积约3600m2，估算滑体总方量为12600m3。对此，采用削坡卸重、妥善处理滑体表层及底部排水、设置桩拱支挡及在滑面上设置销子桩的办法进行处理。

摘要：为正确利用南水北调渠道水泥改性土削坡余料、减少水泥改性土削坡余料的堆放占地以及对环境的污染,降低工程成本,加快施工进度。根据有关技术要求的规定,必须对水泥改性土削坡余料进行回填前的碾压试验。试验的主要目的是依据回填土料的设计技术指标,通过对改性土余料的分层摊铺,土料最优含水量的控制,以及在不同碾压遍数条件下,取得最大干密度的施工工艺参数,从而指导水泥改性土削坡余料的回填施工。

摘要：Deformation and failure of high slope impact the construction and operation safety of highway in the mountainous areas. The deformation and failure are mainly caused by poor design which normally has not well combined with the geological conditions and unplanned construction. Therefore, effective design and construction management should be conducted for ensuring a successful construction without damage and risk. In light of the reality of high slope construction along highway in the Huangshan area, this paper proposes a technical procedure for dynamic design and construction management of high slopes along highway in the mountainous area. The proposed construction management scheme is divided into three phases, i.e., 1) design phase, 2) preparation phase of excavation, and 3) construction phase. During the design phase, experiences and lessons learnt from the design and construction of other high slopes along highway in the same region are summarized. The number of slopes and slope height should be optimized from the aspects of route selection and route form. During the preparation phase of excavation, "Excavation Permit Management System" should be adopted, and construction scheme should be made by the construction unit, then the scientific research and design unit determine whether it guarantees slope stability and makes optimization measures. During the construction phase, the scientific research unit would make proposal of optimization design, and apply the achievements of scientific research into practice through common efforts of various units based on the understanding of excavation and investigation. The management system mentioned above is adopted to conduct dynamic design and construction management for more than 90 slopes along the Huangshan - Taling - Taolin Expressway, and successful results of application have been achieved.

摘要：以某桥梁左岸接线高边坡开挖工程为背景,为保证施工安全,结合项目地质条件,运用简化Bishop法对其边坡稳定安全系数进行计算,得知该值小于规范要求,需采取相关支护措施。由此提出削坡、桩板墙+削坡和上挡墙+削坡3种方案,并从施工效果、施工难度及经济性等方面进行综合对比,最终选定上挡墙+削坡作为本项目高边坡的防护方案,可为类似工程提供参考。

摘要：永定桥水库是瀑布沟水电站库区移民安置区的供水工程。水库总库容较小,库区左岸堰塞体方量约90万m3,大部分位于1505m死水位以上,占有效库容。鉴于堰塞体所占有效库容较大,为了恢复水库库容,保证水库正常运行,根据堰塞体地质条件、边坡稳定坡比、施工条件等综合分析,对堰塞体主要采用坡比1:2.5削坡处理,并对坡面铺设干砌石。经上述工程处理后,坡体虽经历多次暴雨作用,同时多次受水库蓄水及库水位升降影响,现场巡视发现,坡体稳定。2015年12月31日,永定桥水库正式向移民安置区供水,运行至今取得显著经济社会效益。

摘要：削坡和挡护是滑坡体治理常用的方法,但削坡往往会破坏边坡现有的大量植被。目前国家对环水保问题逐步引起重视,削坡的方法一般已较少采用,抗滑桩、桩板墙等挡护工程采用逐渐增多。通过对西藏同波路K35滑坡体治理的介绍,阐述了桩板墙在滑坡体治理中的应用及其稳定分析方法。

摘要：项目区位于凉水河流域,属于黄河水系。由于在凉水河坡面上建有一座灰场和运灰道路,运灰道路是开挖山体形成的,故道路2侧为高边坡,灰场道路多年运行后,其边坡经过风蚀和雨蚀后,坡体极不稳定,经常有巨石落下。

摘要：介绍了金鸡滩水利枢纽工程的基本情况,分析了该工程船闸高边坡塌滑的成因及稳定性,比较了治理设计的削坡方案和锚杆方案,并论述了削坡处理后边坡的支护结构及布置。

摘要：永定桥水库是瀑布沟水电站库区移民安置区的供水工程,库区距坝址约2.0 km左岸分布有5#危岩体、6#危岩体;5#危岩体位于飞水沟桥上游,6#危岩体位于飞水沟桥下游,均为2013年“7·14崩塌”后残留危岩体。2个危岩体在暴雨、地震条件下极易发生崩塌,其一旦倾倒崩塌,对下部处置堰塞体危害较大,对堰塞湖治理也存在一定安全隐患。经对5#、6#危岩体进行削坡、喷锚挂网等工程处理后,现场巡视及监测成果显示危岩体稳定。