摘要
为了解决山区公路土石混合弃渣取样代表性和实验结果离散性问题并获取弃渣工程尺度参数。结合数字化施工过程获取弃渣总重量、堆填体积和极限直立高度,提出弃渣工程尺度容重、内摩擦角和黏聚力计算公式,组成山区公路土石混合弃渣工程尺度测定方法体系,并与传统有限尺寸和数量实验测定方法进行比较。研究结果表明:该方法紧密结合施工过程,不用进行额外的取样和实验,且参数取值偏小、稳定性评价结果具有一定保守特征,可以作为传统方法的有益补充。基于数字化施工的山区公路弃渣工程尺度参数测定方法,可以为动态设计、动态评估提供参数支持,也有助于动态施工、规划堆积、施工优化、施工风险管控。
To solve problems of sampling representativeness or experimental results discreteness for earth-rock mixed spoil from mountain highway,and to obtain the spoil′s engineering-scale parameters.Combining the total weight,fill volume and limiting stand-up height of the spoil obtained during the digital construction process,formulas for the spoil′s engineering-scale density,friction angle and cohesion are built,which form a methodology system for calculating the mountain highway earth-rock mixed spoil parameters.The application and validation of the method are done by a engineering case.Compared with traditional limited size and quantity tests method,this method is closely integrated with the construction process,eliminating additional sampling and experiment works.Additionally,the parameter values obtained are lower than those traditional ones,leading to conservative stability evaluation results.The method can serve as a useful supplement to traditional methods,which can provide parameter support for dynamic design and assessment,also aids in dynamic construction,planning stacking,construction optimization and construction risk management.
作者
李刚
尹小涛
LI Gang;YIN Xiaotao(Wuhan Jiancheng Engineering Technology Co.,Ltd.,Wuhan,Hubei 430000,China;State Key Laboratory of Geomechanics and Geotechnical Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan,Hubei 430071,China)
出处
《水利与建筑工程学报》
2024年第6期76-82,共7页
Journal of Water Resources and Architectural Engineering
基金
云南省交通运输厅项目(云交科教便[2020]98号)
交通运输部科技示范项目(2017-09)。
关键词
山区公路土石混合弃渣
工程尺度参数
数字化施工
容重
内摩擦角
直立极限高度
黏聚力
mountainous highway earth-rock mixed waste slag
engineering scale parameters
digital construction
unite weight
internal friction angle
limit erect height
cohesion