随着温室效应加剧,CO2排放量的控制日益受到重视,CCS(Carbon Capture and Store,简称CCS)技术被看作是最具潜力的解决方案之一.其主要包括捕捉、运输、封存、监测等主要环节,封存中的地质封存适用性最好.CO2地质封存后,需在地表监测其...随着温室效应加剧,CO2排放量的控制日益受到重视,CCS(Carbon Capture and Store,简称CCS)技术被看作是最具潜力的解决方案之一.其主要包括捕捉、运输、封存、监测等主要环节,封存中的地质封存适用性最好.CO2地质封存后,需在地表监测其泄漏运移情况,这是CCS技术能够成功的关键之一.本文概述CCS技术及其研究进展,并分析介绍了CO2的监测技术,重点阐述地球物理监测技术及发展状况.微动技术作为具有潜力的监测新方法正日益受到重视.展开更多
In a karst tunnel, fissures or cracks that are filled with weathered materials are a type of potential water outlet as they are easily triggered and converted into groundwater outlets under the influence of high groun...In a karst tunnel, fissures or cracks that are filled with weathered materials are a type of potential water outlet as they are easily triggered and converted into groundwater outlets under the influence of high groundwater pressure. A terrible water inrush caused by potential water outlets can seriously hinder the project construction. Potential water outlets and water sources that surrounding the tunnel must be detected before water inflow can be treated. This paper provides a successful case of the detection and treatment of water inflow in a karst tunnel and proposes a potential water outlet detection(PWOD) method in which heavy rainfall(>50 mm/d) is considered a trigger for a potential water outlet. The Daba tunnel located in Hunan province, China, has been constructed in a karst stratum where the rock mass has been weathered intensely by the influence of two faults. Heavy rain triggered some potential water outlets, causing a serious water inrush. The PWOD method was applied in this project for the treatment of water inflow, and six potential water outlets in total were identified through three heavy rains. Meanwhile, a geophysical prospecting technique was also used to detect water sources. The connections between water outlets and water sources were identified with a 3-D graphic that included all of them. According to the distribution of water outlets and water sources, the detection area was divided into three sections and separately treated by curtain grouting.展开更多
文摘随着温室效应加剧,CO2排放量的控制日益受到重视,CCS(Carbon Capture and Store,简称CCS)技术被看作是最具潜力的解决方案之一.其主要包括捕捉、运输、封存、监测等主要环节,封存中的地质封存适用性最好.CO2地质封存后,需在地表监测其泄漏运移情况,这是CCS技术能够成功的关键之一.本文概述CCS技术及其研究进展,并分析介绍了CO2的监测技术,重点阐述地球物理监测技术及发展状况.微动技术作为具有潜力的监测新方法正日益受到重视.
基金supported by the National Key Research and Development Project (Grant No.2016YFC0801604)Natural Science Foundation of Shandong Province (Grant No.ZR2017MEE070)
文摘In a karst tunnel, fissures or cracks that are filled with weathered materials are a type of potential water outlet as they are easily triggered and converted into groundwater outlets under the influence of high groundwater pressure. A terrible water inrush caused by potential water outlets can seriously hinder the project construction. Potential water outlets and water sources that surrounding the tunnel must be detected before water inflow can be treated. This paper provides a successful case of the detection and treatment of water inflow in a karst tunnel and proposes a potential water outlet detection(PWOD) method in which heavy rainfall(>50 mm/d) is considered a trigger for a potential water outlet. The Daba tunnel located in Hunan province, China, has been constructed in a karst stratum where the rock mass has been weathered intensely by the influence of two faults. Heavy rain triggered some potential water outlets, causing a serious water inrush. The PWOD method was applied in this project for the treatment of water inflow, and six potential water outlets in total were identified through three heavy rains. Meanwhile, a geophysical prospecting technique was also used to detect water sources. The connections between water outlets and water sources were identified with a 3-D graphic that included all of them. According to the distribution of water outlets and water sources, the detection area was divided into three sections and separately treated by curtain grouting.
