预应力混凝土连续梁桥悬臂施工控制方法的探讨

从施工质量控制的角度,阐述了连续梁桥施工控制的目的、施工控制的内容、施工控制结构分析方法、施工控制监测方法,并提出了施工控制的方法。     

TBM在水工洞室开挖中的应用

TBM法施工作为近几年在超长隧洞施工中的先进技术得以飞速发展,文章简述了TBM施工技术的进展以及其在施工中的优势,并在施工中有效地印证了该施工方法的优越性。     

宁德市园林种植工程施工管理探讨

指出了做好园林种植工程的施工管理工作是决定整个园林工程整体质量的关键性因素,从施工管理于园林工程质量的重要性出发,分析了宁德市园林工程施工管理工作的现状,再从施工管理的具体内容着手,提出了改善施工管理的措施,探讨了宁德市园林种植工程的施工管理工作。     

浅谈斜拉桥施工

斜拉桥的施工包括索塔施工、主梁施工和拉索施工,文章对其施工方法进行了详细的阐述。     

CFG桩在公路软土地基施工中的质量控制

对CFG桩在公路软土地基施工中的施工原理及应用施工流程进行了分析,提出了施工过程的质量控制措施。     

土工格栅施工工艺分析

作者结合施工经验,对施工过程中土工格栅施工工艺的施工控制措施进行了详细的阐述,并提出了施工步骤中的控制要点。     

论钻孔灌注桩施工缺陷及处理措施

钻孔桩基础施工简便,在公路桥梁基础工程中得了广泛应用,但施工中易出现质量缺陷。本文对桥梁工程施工中出现的钻孔桩施工缺陷进行了分析,并结合施工实际介绍了一些钻孔桩质量缺陷的处理方法。     

井底煤仓反井钻机施工技术

介绍了正旺煤业有限责任公司主斜井井底煤仓采用反井钻机导扩孔施工方法,实现了井底煤仓施工机械化,减轻了工人劳动强度,提高了施工速度,保证了煤仓安全施工,并取得了较好的效果。     

关于公路路基施工技术的研究

公路路基施工是公路施工质量保障的基础,也是公路的主体,因此路基施工的重要性在整个施工过程中应受到施工单位的高度重视。其中保证施工质量,认真监管路基施工是施工环节中应重点考虑的问题。本文主要从施工放样、路基施工和施工程序三个方面,结合多年来的经验对其进行了较详细的阐述。     

地下连续墙技术及成墙施工要点

地下连续墙技术是近年来发展的一种新的基础技术,是深基坑施工技术的重要组成部分,对于深基坑施工中的防渗、挡土以及基坑的支柱都具有极为重要的现实意义。地下连续墙施工技术高低直接影响着深基坑的使用性能及其施工质量。然而,由于现代深基坑建设数量不断增加,施工规模的不断扩大,深基坑的施工工艺、施工技术以及施工结构都发生了很大变化,地下连续墙施工也越来越复杂,极易造成质量安全隐患。文章主要介绍了地下连续墙的基本概念、分类及其特点,并结合某实际工程施工中地下连续墙施工技术应用情况以及施工要求,探讨地下连续墙成墙施工技术要点,旨在优化地下连续墙施工技术,提高工程施工质量。     

MSG型优质木棒砂光机的研究

介绍了新研制的优质木棒砂光机的结构特点和工作原理；利用ＭＳＧ型砂光机对木棒进行砂光处理，将大幅度提高木棒的优质品率。     

多功能构造柱在砖混房屋中的应用与研究

本文论述了“三用柱”在实际工程中的应用,以及应用范围,并详细介绍了它的计算方法。     

福建中部丘陵山地湿地松大径材培育技术

在福建中部丘陵山地通过湿地松引种栽培试验研究,结果表明:该树种生长较快,适应性强。通过集约管护30 a,其平均树高、胸径及蓄积量分别可以达到16.8 m、32.0 cm与581.0 m3,与一般造林(对照)的湿地松林分平均树高、胸径及蓄积量14.3 m、24.3 cm、282.6 m3相比,分别增长17.5%、31.7%与105.6%,是福州市郊较大面积引种湿地松培育大径材成功的实例,具有很好的应用推广前景。     

构造柱在砖混房屋中的多功能性

本文论述了构造柱在砖混房屋中的多功能性特点及其适用范围。     

Commercial pole production in linear agroforestry systems

While the stems of upperstorey trees in agroforestry systems have many uses such as firewood and fencing, it remains true that one incentive for growing upperstorey trees is the anticipated income generated by selling commercial quality poles. Three hundred and ninety-one poles representing 15 tree species grown under linear agroforestry conditions at four sites in Uganda were analyzed in terms of the length, diameter and taper of their poles. At the time of harvest, the trees were 41 months old. Although the poles varied in size and shape, none conformed to the standards observed in the commercial pole market in Kampala. The results demonstrate that linear agroforestry systems are unlikely to produce high quality commercial poles in a short time although they have other uses. Development of commercial pole production in these systems requires low cost management practices. New research designs and hypotheses are needed to assess the potential of commercial pole production. They must consider trials with larger plots, longer duration and varying management practices such as side pruning, spacing, coppicing and pollarding.     

ZK55SiMnMo钎杆早期失效分析及工艺改进

ZK55SiMnMo钎杆早期失效的原因是钢在锻造加热时采用燃煤加热，加热时间长，表面氧化脱碳严重，在锻造时产生微裂纹，并且内部粗大，强韧性下降，在使用时裂纹快速扩展所致。解决办法是采用中频加热方式。     

抗震构造柱参与工作的应用

抗震设计是结构设计中的重要内容。本文作者结合自己的经验,详细论述了抗震构造柱在结构中的重要作用。     

构造柱施工质量的几项控制措施的一点体会

本文作者介绍了构造柱的设置、施工程序等 ,并且对其施工质量常出现的问题提出了几项控制措施。     

基础梁计算问题的商榷

本文论述了基础梁计算中,现有的几种计算方法,供工程设计人员参考。     

Alley cropping Sesbania sesban (L) Merill with food crops in the highland region of Rwanda

Food production in the densely populated Rwandan highlands is impeded by soil erosion and loss in fertility. Alley cropping leguminous shrubs with food crops on contours is purported to minimize the problem and to provide wood and forage. This study reports the effect of Sesbania prunings plus moderate levels of N and P on bean (Phaseolus sp) and maize (Zea mays) yields in alley cropping. Experimental design was a randomized complete block with split-split plots. Main plots were alley width: 2, 4, 6 and 8 m. Phosphorus (P) at 0, 30 and 60 kg P₂O₅/ha occupied the subplot and nitrogen (N) at 0, 30 and 60 kg/ha were assigned at the sub-sub plot level. No P was applied to maize during the second cropping season. Crop yield in kg/ha included the land space taken by hedgerows. Bean yield in 6 m alleys (1100 kg/ha) was about twice that in 2 m alleys (500 kg/ha). Bean responded to N and P. Optimum alley width and N for bean yield were 6 m and 30 kg/ha, respectively. Cuttings from alley hedgerows provided stakes for climbing beans. Maize responded to N but not to residual P. The highest maize yield came from 8 m alleys with 40 kg/ha, but yields from 8 and 6 m alleys with the same N treatment were not significantly different. Maize plants in middle rows were significantly taller than plants in rows adjacent to hedgerows. Maize rust development showed significant alley width and row position effect. There were significantly fewer uredinia in the Sebania alleys relative to the control plots without shrub hedgerows. Rust development on maize in middle rows was significantly greater than development in border rows.