Application of trenchless technology in residential land development

近年来，非开挖技术（TT）方法在最大限度地减少输送管道施工期间对交通、商业和其他活动的干扰方面发挥了重要作用。由于成本和风险两个主要因素，非开挖方法仅在没有其他可行方案的棕地中被考虑。在住宅用地开发中，采用明挖法建设供水、下水道、电网、电信等土地基础设施。然而，在阿尔伯塔省这样的寒冷地区，露天开采的施工季节每年只有6-7个月，土地开发商通常不会在冬季安装浅层公用设施。拟议的研究将探讨在住宅土地开发中使用TT的可行性，并在成本，时间表和温室气体排放方面比较TT和传统的明挖方法。Landmark是该项目的工业合作伙伴，将提供在多户住宅项目中进行小规模实地试验的机会。研究团队将调查不同TT方法在住宅土地开发中的适用性，分析与每种TT方法相关的风险，量化施工过程中的温室气体排放，比较成本和进度，并研究TT和传统明挖法的社会影响。将TT技术应用于公用工程管道安装，可以延长寒冷地区陆地基础设施的施工工期，降低工程造价，减少对环境的影响。

In recent years, Trenchless Technology (TT) methods have assumed an essential role in minimizing disruptionsto traffic, business and other activities during the construction of transmission pipelines. Due to two majorfactors, which are cost and risk, trenchless methods are only considered in brown field wherever there are noother feasible options. In residential land development, open cut method is used for the construction of landinfrastructure such as water supply, sewers, power grids and telecommunications. However, in cold region likeAlberta, the construction season for open cut is only 6-7 months each year and land developers generally do notinstall shallow utilities during the winter season. The proposed research will investigate the feasibility of usingTT in residential land development and compare TT and conventional open cut methods in terms of costs,schedule and Greenhouse Gas (GHG) emissions. Landmark, the industrial partner of the project, will providethe opportunity of a small-scale field trial in a multi-family residential project. The research team willinvestigate applicability of different TT methods in residential land development, analyze the risks associatedwith each TT method, quantify GHG emissions in the construction processes, compare cost and schedule, andstudy the social impacts of TT and conventional open-cut method. Using TT in utility pipeline installation hasthe potential to extend the construction season of land infrastructure in cold regions, decrease the project costand reduce the environment impacts.