Collaborative Research: A Joint NU-UIUC Project for the Development of New Integrated Tools for Predicting, Monitoring and Controlling Ground Movements due to Excavations

摘要：随着美国主要城市中心城市化、人口密度和交通拥堵的增加，对地下空间的需求越来越大。目前对国土安全的关切促使人们考虑利用地下空间安置和保护城市走廊沿线的关键和敏感基础设施。随着城市区域内的新开发和越来越多的再开发，地下空间的高效和安全开发是一个明确的需求。在城市环境中进行深挖掘的一个主要问题是与施工相关的地面运动对邻近建筑物和公用设施的影响。地面运动导致受影响的地面支撑的结构变形，并可能遭受破坏。预测和控制由地下空间产生的地面运动的幅度和分布是至关重要的。该合作研究项目旨在开发新的综合工具，用于预测、监测和控制与城市地区挖掘相关的地面运动。该项目是西北大学和伊利诺伊大学厄巴纳-香槟分校的合资企业。该项目将探索和开发新技术，为大大加强施工控制过程和随之而来的地面变形缓解提供实质性的希望，包括：(1)具有无线通信能力的现场仪器仪表和传感器；(2)数据存储和显示，包括在虚拟现实环境中显示施工进度、地面和建筑物运动；(3)智能、自更新的数值模型，用于模拟开挖和支护过程，并计算预期的地面和结构运动。这些新技术和改进将在挖掘工程中实时进行现场测试。除了研究部分，该项目还具有强大的教育和行业外展部分。一组具有全国实践经验的承包商和工程公司将提供进入正在进行的挖掘项目的机会，并参加项目咨询委员会。主要来自本科院校的教师及其学生将参与该项目。

CMS-0219123PI: Richard J. FinnoInstitution: Northwestern UniversityTitle: "Collaborative: A joint NU-UIUC Project for Development of New Integrated Tools for Predicting, Monitoring and Controlling Ground Movements due to Excavations"Abstract:The increased urbanization, population density and traffic congestion in major urban centers in the US has lead to a greater demand for underground space. Current homeland security concerns have prompted consideration of use of underground space for placement and protection of critical and sensitive infrastructure along urban corridors. With new development, and increasingly more redevelopment within the urban areas, there is a clear need to efficiently and safely develop underground space. A major concern when placing deep excavations in urban environments is the impact of construction-related ground movements on adjacent buildings and utilities. The ground movements cause structures supported by the affected ground to deform and possibly sustain damage. It is critically important to predict and control the magnitude and distribution of the ground movements that result from creating the underground space.This collaborative research project aims to develop new, integrated tools for predicting, monitoring, and controlling ground movements associated with excavations in urban areas. The project is a joint venture between Northwestern University and the University of Illinois at Urbana-Champaign. The project will explore and develop new technologies that offer substantial promise for greatly enhancing the construction control process and attendant mitigation of ground deformations including: (1) field instrumentation and sensors with wireless communication capabilities, (2) data storage and display, including the display of construction progress and ground and building movements in a virtual reality environment, and, (3) intelligent, self-updating numerical models to simulate the excavation and support process and to compute anticipated ground and structure movements. These new technologies and improvements will be field tested in real time during excavation projects. The project has strong educational and industry outreach components in addition to its research components. A group of contractors and engineering firms that have national practices will provide access to ongoing excavation projects and participate in the project advisory board. Faculty and their students from primarily undergraduate institutions will participate in the project.