The author made progress of large-scale earthwork construction research of airport high embankment, including systemic echnical and economic analysis of sealing s properties, compaction techniques and quality control means, as well as in-situ trial investigation.
首先,分析了土石料的压实特性、影响压实质量的主要因素,分别提出了使用细粒土、粗粒土和土石混合料用作填料进行填方施工的质量控制方法;其次,介绍了大型土石方工程压实施工中常用的设备,并对振动压路机、强夯机和冲击压路机的压实机理、使用性能进行分析,提出了振动压路机、强夯机和冲击压路机等设备的适用性;第三,通过河池机场高填方试验段工程试验研究,分析了振动压实、强夯、冲击压实现场试验的数据,得出不同压实方法的合理的施工工艺、施工参数和施工质量控制手段;最后,对振动压实、强夯、冲击压实三种施工方法进行了施工速率、经济效益、工程质量的综合对比分析,认为大型土石方压实处理宜采用冲击压实方法。
As the large external floating-roof tank is exposed to atmosphere, it is subject to the great impact of natural conditions which may bring in numerous unsafe factors and lead to greater economic losses.
大型外浮顶罐由于浮顶暴露在大气中,受外界自然现象的影响很大,从而引发许多不安全因素并带来较大的经济损失。
Analysis and Study of Compaction Technologies in Airport Large-scale Earthwork Construction;
机场大型土石方压实技术分析与研究
RESEARCH ON INFINITE DIVISION DETONATING TECHNOLOGY OF LARGE-SCALE ROCK BLASTING
大型土石方爆破无限分段起爆网路技术研究
Application of grid method in the large earthwork--Taking our new campus construction for example;
方格网法在大型土石方工程中的应用——以我校新校区建设为例
Analysis on Causes of Calvert Leakage below Earth-rock Dam of Large and Middle Reservoirs in Shangrao City and Methods to Its Treatment
上饶市大中型水库土石坝坝下涵管渗漏原因分析及处理方法
We spread lime where the soil was sour.
土壤酸性大的地方我们就撒上石灰。
Study on Optimization Location of Sandstone Yard and Concrete System in Majer Hydroelectric Project Construction;
大型水电枢纽工程施工中砂石骨料及混凝土系统布置方案优选研究
Large-diameter longhole blasting was used to excavate soil-rock in some engineering project.
某工程的土石方开挖采用大直径深孔爆破方式。
Chiang Kai-shek declares that the enemy is not to be feared because there are still vast territories in the Great Rear Area.
蒋介石说，大后方尚有广大土地，不怕敌人。
Design and research of mathematical model and simulation system for earth-rock excavation
土石方开挖数学模型和仿真系统的设计与研究
Study of spatial effect and stability of large scale soil-rock mixture landslide
大型土石混合体滑坡空间效应与稳定性研究
Research on Limited Factors of Reclaimed Soil in the Large Coal Wastes Pile in Fushun West Opencast Coal Mine
大型煤矸石山植被重建的土壤限制性因子分析
The Method of Earthwork Fine Calculation of Large-scale Landscape Project
大型园林景观工程精细土方计算方法
Distribution,types,characteristics and geneses of attapulgite(palygorskite) clay deposits in Australia
澳大利亚凹凸棒石(坡缕缟石)粘土矿床的分布、类型、特征及成因
c)Among various soil types,erosion on yellow soil and lime soil is most prominent,besides them are red soil,yellow brown soil,paddy soil,brown soil,dark brown forest soil,laterite soil,brown soil,lateritic red soil and black clay soil.
在各种土壤类型中,黄壤和石灰土的土壤侵蚀最为突出,其次为红壤、黄棕壤和南方水稻土等;
concrete block and rock-mound breakwater
混凝土方块堆石防波堤
Comparison and Selection of Limestone Slurry System Options in Wet Limestone-Gypsum FGD of the 1 000 MW Generating Unit
大型火电机组湿法脱硫中石灰石制浆系统方案比选
Community structure of soil macrofauna under different land-use systems in the purple hilly areas of Sichuan Basin
四川紫色土丘陵区不同土地利用方式下大型土壤动物群落结构
Research on Demand Forecasting Method about Talented Persons Grasping Science and Technology of Our Country's Large Petrochemical Enterprises;
大型石化企业科技人才需求预测方法研究