The Experts below are selected from a list of 21408 Experts worldwide ranked by ideXlab platform
Bo Li - One of the best experts on this subject based on the ideXlab platform.
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feasibility of Water Seepage monitoring in concrete with embedded smart aggregates by p wave travel time measurement
Smart Materials and Structures, 2014Co-Authors: Yongchao Huang, Fuyao Zhang, Chengcheng Du, Bo LiAbstract:Water Seepage in concrete threatens the safety of marine constructions and reduces the durability of concrete structures. This note presents a smart aggregate-based monitoring method to monitor the travel time evolution of a harmonic stress wave during the Water infiltrating process in concrete structures. An experimental investigation, in which two plain concrete columns were examined under different Water infiltration cases, verified the validity of the proposed monitoring method. The test results show that the travel time of the harmonic stress wave is sensitive to the development of Water Seepage in concrete and decreases with increasing Water Seepage depth. The proposed active monitoring method provides an innovative approach to monitor Water Seepage in concrete structures.
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exploratory study on Water Seepage monitoring of concrete structures using piezoceramic based smart aggregates
Smart Materials and Structures, 2013Co-Authors: Yongchao Huang, Jun Teng, Bo LiAbstract:The technology of piezoceramic based smart aggregates (SAs) has demonstrated its potential in the comprehensive monitoring of concrete structures. However, its usage in the moisture monitoring of concrete structures has not yet been explored. In this research, SA transducers are used to detect the degree of Water infiltration in concrete components and an active sensing method is proposed for moisture monitoring. For experimental study and verification, two short plain concrete columns, with embedded SAs, were fabricated, and an apparatus was developed to perform moisture monitoring of these two columns under different moisture conditions. Data were analyzed to study the relationship between the depth of Water Seepage and the sensing indicators of receiving signals. Experimental results show that the sensing indicators are very sensitive to the degree of Water infiltration inside the column. These sensing indicators show a decreasing trend with increasing depth of Water Seepage, and this leads to the promising conclusion that these parameters can be used as evaluation indices for the Water Seepage monitoring of concrete structures.
Yongchao Huang - One of the best experts on this subject based on the ideXlab platform.
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feasibility of Water Seepage monitoring in concrete with embedded smart aggregates by p wave travel time measurement
Smart Materials and Structures, 2014Co-Authors: Yongchao Huang, Fuyao Zhang, Chengcheng Du, Bo LiAbstract:Water Seepage in concrete threatens the safety of marine constructions and reduces the durability of concrete structures. This note presents a smart aggregate-based monitoring method to monitor the travel time evolution of a harmonic stress wave during the Water infiltrating process in concrete structures. An experimental investigation, in which two plain concrete columns were examined under different Water infiltration cases, verified the validity of the proposed monitoring method. The test results show that the travel time of the harmonic stress wave is sensitive to the development of Water Seepage in concrete and decreases with increasing Water Seepage depth. The proposed active monitoring method provides an innovative approach to monitor Water Seepage in concrete structures.
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exploratory study on Water Seepage monitoring of concrete structures using piezoceramic based smart aggregates
Smart Materials and Structures, 2013Co-Authors: Yongchao Huang, Jun Teng, Bo LiAbstract:The technology of piezoceramic based smart aggregates (SAs) has demonstrated its potential in the comprehensive monitoring of concrete structures. However, its usage in the moisture monitoring of concrete structures has not yet been explored. In this research, SA transducers are used to detect the degree of Water infiltration in concrete components and an active sensing method is proposed for moisture monitoring. For experimental study and verification, two short plain concrete columns, with embedded SAs, were fabricated, and an apparatus was developed to perform moisture monitoring of these two columns under different moisture conditions. Data were analyzed to study the relationship between the depth of Water Seepage and the sensing indicators of receiving signals. Experimental results show that the sensing indicators are very sensitive to the degree of Water infiltration inside the column. These sensing indicators show a decreasing trend with increasing depth of Water Seepage, and this leads to the promising conclusion that these parameters can be used as evaluation indices for the Water Seepage monitoring of concrete structures.
Daniel R Joswiak - One of the best experts on this subject based on the ideXlab platform.
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Water balance observations reveal significant subsurface Water Seepage from lake nam co south central tibetan plateau
Journal of Hydrology, 2013Co-Authors: Shiqiao Zhou, Shichang Kang, Feng Chen, Daniel R JoswiakAbstract:Summary Hydrological observations including precipitation, runoff, evaporation and lake level were performed in detail in the basin of the Lake Nam Co in the southern-central Tibetan Plateau from 2007 to 2011. Two runoff coefficients at differing catchment scales were obtained and applied to derive the surface Water inflow to the lake from the non-glaciated areas. Total runoff was partitioned into contributions from glaciated and non-glaciated areas at two additional catchment scales. The runoff from the non-glaciated areas amounted to 1400 mm lake depth during the observation period from May 18 to October 17, 2008, during which the most complete set of observations was obtained. Neglecting groundWater contributions, this amount accounted for 55–65% of the total Water input to the Lake Nam Co. The precipitation contribution and the meltWater inflow from the glaciers accounted for 23–28% and 7–22% of the total Water input to the lake, respectively. The Water input was found to be 810–1220 mm lake depth (1.63 × 10 9 –2.47 × 10 9 m 3 ) more than the output of the lake during a 5-month period in 2008. Similar results were obtained for the years 2007 and 2009–2011. As there is no surface outflow from the lake, the large Water imbalance can only be explained by Water Seepage, corresponding to an average outflow of 120–190 m 3 s −1 or 5–8 mm lake Water depth per day. It is likely that the main pathway for lake Water Seepage is through the sub-surface fault system, which is known to exist in the area.
Shiqiao Zhou - One of the best experts on this subject based on the ideXlab platform.
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Water balance observations reveal significant subsurface Water Seepage from lake nam co south central tibetan plateau
Journal of Hydrology, 2013Co-Authors: Shiqiao Zhou, Shichang Kang, Feng Chen, Daniel R JoswiakAbstract:Summary Hydrological observations including precipitation, runoff, evaporation and lake level were performed in detail in the basin of the Lake Nam Co in the southern-central Tibetan Plateau from 2007 to 2011. Two runoff coefficients at differing catchment scales were obtained and applied to derive the surface Water inflow to the lake from the non-glaciated areas. Total runoff was partitioned into contributions from glaciated and non-glaciated areas at two additional catchment scales. The runoff from the non-glaciated areas amounted to 1400 mm lake depth during the observation period from May 18 to October 17, 2008, during which the most complete set of observations was obtained. Neglecting groundWater contributions, this amount accounted for 55–65% of the total Water input to the Lake Nam Co. The precipitation contribution and the meltWater inflow from the glaciers accounted for 23–28% and 7–22% of the total Water input to the lake, respectively. The Water input was found to be 810–1220 mm lake depth (1.63 × 10 9 –2.47 × 10 9 m 3 ) more than the output of the lake during a 5-month period in 2008. Similar results were obtained for the years 2007 and 2009–2011. As there is no surface outflow from the lake, the large Water imbalance can only be explained by Water Seepage, corresponding to an average outflow of 120–190 m 3 s −1 or 5–8 mm lake Water depth per day. It is likely that the main pathway for lake Water Seepage is through the sub-surface fault system, which is known to exist in the area.
Muhammad Hamzah Syahruddin - One of the best experts on this subject based on the ideXlab platform.
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Using self-potential housing technique to model Water Seepage at the UNHAS housing Antang area
2017Co-Authors: Muhammad Hamzah SyahruddinAbstract:The earth’s surface has an electric potential that is known as self-potentiall (SP). One of the causes of the electrical potential at the earth’s surface is Water Seepage into the ground. Electrical potential caused by Water velocity Seepage into the ground known as streaming potential. How to model Water Seepage into the ground at the housing Unhas Antang? This study was conducted to answer these questions. The self-potential measurements performed using a simple digital voltmeter Sanwa brand PC500 with a precision of 0.01 mV. While the coordinates of measurements points are self-potential using Global Positioning System. Mmeasurements results thus obtained are plotted using surfer image distribution self-potential housing Unhas Antang. The self-potential data housing Unhas Antang processed by Forward Modeling methods to get a model of Water infiltration into the soil. Housing Unhas Antang self-potential has a value of 5 to 23 mV. Self-potential measurements carried out in the rainy season so it can be a...
