共查询到18条相似文献，搜索用时 234 毫秒
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植被护坡及其在重庆地区的应用 总被引：3，自引：0，他引：3
边坡工程中的植被不仅能美化环境，还具有控制雨水冲蚀、稳定边坡的作用。文章详细论述了植被护坡的边坡滑移面上的边坡稳定系数的评定方法，并与无植被边坡稳定性进行比较，讨论了植被护坡的力学效应和水文作用、植被对雨水冲蚀的控制作用，提出了植被护坡的种植和布置方法的建议。结合重庆地区的边坡特点和气候条件，介绍和分析了该地区的几项典型植被护坡工程及施工方法和施工效果，为植被护坡技术的推广和应用提供借鉴和参考。 相似文献
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寒区平原水库土坝护坡冻害防治技术 总被引：2，自引：0，他引：2
根据近年来冻土力学、冰工程学等研究成果,简述了寒区原水库土坝护坡构筑物冻害防治技术的主要内容,包括平原水库土坝护坡工程冻害破坏规律,给出了土坝护坡冻害防治措施、防冰措施、抗冻胀设计参数的确定、抗冰推护坡稳定计算等,可供工程设计人员参考。 相似文献
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月河是汉江左岸较大的一级支流,安康汉滨区处月河下游段,径流量大,防洪压力大,故在城区沿河段采用了多种护坡形式,选择合理护坡形式是保障河段行洪安全的重要措施.通过对汉滨区城区堤防工程建设中多种护坡形式进行比选分析,总结各种护坡的优缺点,最终优先适宜护坡形式.比选结果可知:在防洪工程建设中共采用浆砌石挡墙、浆砌石护坡、干砌... 相似文献
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寒区水库护坡冬季常常会在低气温和低温环境的共同作用而产生冰冻破坏,进而影响其发挥正常的作用,甚至会使其完全失去作用.结合团结水库的实际工程问题,在传统分析、计算方法的基础上将断裂力学引入进来,从断裂力学的角度分析了该水库护坡产生冰冻破坏的主要原因有三大因素:冰推、冻胀和浪淘,其中冰推和冻胀起控制作用,浪淘起辅助作用.根据冰冻破坏原因分析,提出了钢筋混凝土护坡板的设计方案,并对其进行了抗冰推、抗冻胀破坏的验算校核,结果证明:该计算方法和设计方案完全能够使寒区水库护坡达到抵抗冰冻破坏的目的.为解决寒区平原水库护坡抗冰冻破坏问题提出了新的思路,进行了有意义的探索. 相似文献
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新型框格护坡的设计与实践 总被引：7，自引：1，他引：6
胡时友 《地质灾害与环境保护》2000,11(2):116-120
传统的轻型框护坡在铁路、公路的边坡和路堤防护中已经得到广泛应用。本文主要介绍近年来国内外出现的几种框格护坡的新型式,以及它们的特点、适用范围、设计与施工要点,最后介绍工程实例。 相似文献
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护坡结构体系变形控制设计的概念和基本内容。变形控制设计首先是变形预测分析；基次是动态设计的过程，即预测－设计优化－施工信息跟踪－信息反馈与决策－再设计；第三，不仅要满足护坡结构本身的要求同时还要满足相邻环境的要求；第四，变形预测要通过一定的技术措施予以实现。 相似文献
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青藏铁路冻土区块石护坡路基热传递特性 总被引：2，自引：0，他引：2
块石护坡路基是青藏铁路建设中一种有效的冷却地基保护冻土工程措施.考虑高原夏季夜间冷空气对块石护坡路基温度场的影响,对青藏铁路北麓河块石护坡试验路基夏季某一整天的温度场、热流量和热流密度进行了分析,研究块石护坡路基昼夜间热传递特性.结果表明:块石护坡路基在夏季白天吸收热量,在夜间冷空气的作用下路基释放一部分热量,说明夏季夜间存在一定的降温效果.另外考虑一年内冷暖季块石护坡的热传递差异,对块石护坡路基冷暖季的温度场、热流量和热流密度变化情况进行研究,探讨其冷暖季热传递特性,结果显示:块石护坡路基暖季处于吸热状态,冷季处于放热状态;从一年的热流量变化看,块石护坡路基冷季的放热量大于吸热量,路基储存冷能有利于保护冻土. 相似文献
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介绍了岩石边坡的形成和特征以及岩石边坡生态防护的内涵,系统总结了目前常用的4类岩石边坡生态护坡方法,并对其进行了对比,指出了当前生态护坡技术的发展趋势和需要解决的关键问题. 相似文献
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The results brought out in the trials of slope protection along Qinghai-Tibet Highway are presented in this paper. The trials were carried out simultaneously at 5 sites in Qinghai-Tibet Plateau from 2000 to 2002. Altitudes at the experimental sites range between 4 240 m and 5 040 m. 4 sites are in permafrost area, and 1 site is in seasonally frozen ground. According to the trials of slope protection, vegetation is preferred to protect slopes along Qinghai-Tibet Highway. Road-GoodR, a chemical stabilizer, is proved as a good material for slope protection, and soil engineering system, combined with vegetative component and grade stabilization structures is proved as the best slope protection measure in these are as. The results showed that high-altitude areas at an altitude lower than 5 040 m, annual average temperatures higher than -5.6 ℃ and annual rainfall more than 262.2 mm, slopes can be protected using vegetative components.Trials for plant species selection proved that cold resistant grasses, Elymus nutans and Elymus sibiricus can be used for vegetation recovery along Qinghai-Tibet Highway. The results demonstrated that high-altitude areas at an altitude lower than 5 040 m, annual average temperatures higher than -5.6 ℃ and annual rainfall more than 262.2 mm, could be replanted. Hydroseeding proved to be a good planting technique, and mulch materials benefited vegetation recovery in such area.The experiment also proved that planting could improve slope stability, protect the ecological environment, and improve the roadside landscape. 相似文献
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A decision support system (DSS) has been developed to assist expert and non-expert users in the evaluation and selection of
eco-engineering strategies for slope protection. This DSS combines a qualitative hazard assessment of erosion and mass movements
with a detailed catalogue of eco-engineering strategies for slope protection of which the suitability is evaluated in relation
to the data entered. The slope decision support system (SDSS) is a knowledge based DSS in which knowledge is stored in frames
containing rules that can evaluate the available information for a project, stored as project specific information (PSI) in
a data file. The advantages of such a system are that it accepts incomplete information and that the qualitative nature of
the information does not instil the user with a sense of unjustified exactitude. By its multidisciplinary and progressive
nature, the DSS will be of value during the initial stages of an eco-engineering project when data collection and the potential
of different eco-engineering strategies are considered. The accent of the output of the DSS is on the application of eco-engineering
strategies for slope protection as an environmentally-friendly solution aiding sustainable development. For its acceptance
within the engineering community, the DSS needs to prove its predictive capacity. Therefore, its performance has been benchmarked
against successful and unsuccessful cases of slope stabilisation using eco-engineering. The target audience and the areas
of application of this DSS are reviewed and the strategies for further development in this area suggested. 相似文献
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高速公路边坡稳定性分析及与环境保护相协调的治理措施研究 总被引：1，自引：0，他引：1
以常张高速公路一典型岩质边坡稳定性分析为例 ,系统地介绍了边坡工程稳定性分析的全过程 ,从环境保护的角度提出了生态护坡的治理措施 相似文献
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上海虹口区广粤路垃圾堆场地处中心城区,是垃圾堆场改造成景的成功案例,但近年常受大暴雨影响发生小型滑坡。植被是经济和有效的水土保持和固坡方式。本文简述植被护坡机理与作用,针对广粤路垃圾堆场实际情况,探讨植被护坡的合理运用,以改善和提高城区环境面貌。 相似文献