基于区块链的建设项目数据穿透机制研究

从建设项目数据不透明问题的现状出发,结合“穿透”理念和区块链的技术优势,研究建设单位视角下基于区块链的建设项目数据穿透模式和实现路径。然后提出从组织穿透、过程穿透和行为穿透三个维度进行建设项目的数据穿透,并分别论述区块链如何帮助实现建设项目三维度穿透机制。最后通过案例探讨区块链带来的建设项目价值的提升。     

Evaluating the effect of building construction periods on household dampness/mold and childhood diseases corresponding to different energy efficiency design requirements

Despite concerns about building dampness and children’ health, few studies have examined the effects of building energy efficiency standards. This study explored the connections between self-reported household dampness and children’ adverse health outcomes across buildings corresponding to construction periods (pre-2001, 2001-2010, post-2010). Significant differences of dampness-related indicators were found between buildings; the prevalence was remarkable in pre-2001 buildings. The prevalence of lifetime-ever doctor-diagnosed diseases for children was significantly associated with building dampness (adjust odd ratios > 1), but was not affected by construction periods. The hygrothermal performance for a typical residence was simulated, varying in U-values of envelopes and air change rates. The simulated performance improvement increased indoor temperatures in 2001-2010 and post-2010 buildings. The frequency with higher indoor relative humidity was higher in pre-2001 buildings, leading to the highest values for maximum mold index (M_max) on wall surface, especially in winter. Compared to buildings in 2001-2010, increased insulation and lower air change rate led to a relatively higher relative humidity in post-2010 buildings, adversely increasing the M_max values. The findings addressed the positive and negative role of building standard development, which help suggesting appropriate environmental and design solutions to trade-off energy savings and dampness/mold risk in residences.     

预裂爆破在中硬且裂隙发育红砂岩地区的应用研究

介绍了湖南省湘耒高速公路边坡开挖爆破施工时,在中等坚硬且裂隙发育红砂岩地区实施预裂爆破的试验情况。试验取得了较好的效果，解决了施工中的难题。     

深圳地铁车竹区间矿山法隧道的防水设计与施工

结合深圳地铁一期工程车公庙－竹子林暗挖区间隧道设计与施工的实际情况，谈一些经验和体会，可供在建及二期地铁矿山法隧道防水设计与施工作参考。     

针对具体地质情况选择桩机的实践

结合工程实例，讨论了在大口径钻孔灌注桩施工中，如何针对具体地质情况选择不同的桩机的问题，从而提高施工效率。     

施工项目进度控制原理

通过分析影响施工项目进度的5大因素,得出了施工项目进度控制的6方面原理。     

PHC管桩静压施工技术及主要技术问题的处理

介绍PHC管桩静压施工技术,施工过程中主要技术问题的处理方法,并举六个在施工过程中遇到问题经处理所取得效果的典型实例给予佐证,为类似条件下的静压管桩施工所遇技术问题提供了一些有效的解决方法。     

高速公路膨胀土地段路基施工技术

针对青岛—红其拉甫公路鲁冀界至邯郸段高速公路膨胀土实际工程,对典型膨胀土路段的膨胀土进行了物理力学性质指标试验,评价了该段膨胀土的的工程特性,并提出了膨胀土的处理、设计与施工方案,对指导膨胀土路基的设计与施工具有重要的意义。     

浅析建设项目竣工决算审计与建设工程竣工结算审核的区别

从依据、工作程序及方法等诸多方面解析了建设项目竣工决算审计与建设工程竣工结算审核两者的区别,从而使今后的具体工作更具目的性、合理性.