Shoukai Chen's research while affiliated with North China University of Water Conservancy and Electric Power and other places

Publications (12)

Article
In response to China's rapid urbanization and the increasing accumulation of construction waste, it is essential to rationalize waste treatment without damaging the environment. Besides, natural mineral resources such as stone and sand are incredibly scarce. Therefore, it is urgent to find replaceable materials. The main objective of this study is...
Article
Full-text available
Seepage analysis has always been the focus of channel safety and stability research. Establishing a diagnosis method based on osmotic pressure monitoring data and combining the detection information to achieve osmotic safety is also an effective way to ensure the safety and stability of osmotic engineering. In this paper, a high-fill channel sectio...
Article
Pervious concrete is recommended, which is of great benefit to the ecological environment and human living environment. In this paper, the influences of five water-cement ratios and four fly ash contents to replace the cement by mass with a water-cement ratio of 0.30 on the properties of Recycled Aggregate Pervious Concrete (RAPC) were studied. Fol...
Article
The further study on recycled aggregates can promote the standardization and scale of the comprehensive recycling industry of the construction waste and meet the requirements of sustainable development. Therefore, this paper studies the relationship between the material and property and the relationship between properties of recycled aggregate perm...
Article
Full-text available
A data set of cemented sand and gravel (CSG) mix proportion and 28-day compressive strength was established, with outliers determined and removed based on the Boxplot. Then, the distribution law of compressive strength of CSG was analyzed using the skewness kurtosis and single-sample Kolmogorov-Smirnov tests. And with the help of Python software, a...
Chapter
According With the development of space remote sensing technology, the emergence of various multi-temporal, multi-spectral, hyperspectral, high-resolution remote sensing image technologies and corresponding products makes the information of the earth’s surface resources and topography more quickly and effectively presented, which not only provides...
Chapter
According to the measurement data of hydrology and water quality, the decision support system in the multiple feedback linkage system is used for calculation, combined with the judgment and decision of the expert system in the water treatment expert assistant decision analysis system, the precise control of the Internet of Things equipment in the w...
Article
To investigate the material damage and stress state of cemented sand and gravel (CSG) under freeze–thaw environment, this paper proposed an evolutionary model by combining the damage theory of porous materials and the mechanism of deterioration of mechanical properties of CSG under the action of freeze–thaw cycles, and by considering the age effect...
Article
Full-text available
Mobile flood protection systems provide a standardized flood protection method with high reliability. A comprehensive test site for mobile flood wall was established with the support of real applications, which provided opportunities to perform various tests. The anchor plate installation, seepage characteristics, and stress behavior of mobile floo...
Article
In view of the problem of seepage safety and the character of dangerous reservoir earth dam, the 3D seepage of FEM back analysis was studied. Based on a reservoir project, the rationality of prototype observation data in recent years is analyzed, and the effective monitoring point and its observation data are selected for back analysis. The simulat...

Citations

... The cloud model was proposed by a Chinese scholar, Deyi Li, in 1993 [38,39]. It is a method that can represent the spatial state of a concept by numerical features and that can realize the mapping and conversion work between qualitative and quantitative representations, i.e., forward cloud generator and backward cloud generator. ...
... e results showed that the decline of compressive strength of concrete slows down and concrete presents satisfactory plastic properties when the RSF size is more than 2.0 cm. e concrete industry often replaces cement with auxiliary cementitious materials to reduce resource consumption on the basis of sustainable development goals [15,16]. Fly ash, a by-product of thermal power plants, is an auxiliary cementitious material used by countries worldwide [17,18]. Su et al. [19] investigated the influence of straw fiber mixed with fly ash and ceramsite on concrete's compressive and splitting tensile strength values. ...
... This behavior is due to the formation and development of surface microcracks at the final stages of orientational drawing, the so-called kink bands, which are initiators of the most intense crack growth at the deformation stages preceding the sample failure [1,2]. For this reason, in order to correctly estimate the average values of σ, E, and strain at break (ε b ), σ av , E av , and ε av , which are important characteristics playing a key role in choosing the most appropriate fields for material applications, the number of identical samples to be tested should be increased markedly, from the generally accepted about five [5][6][7][8] to some dozens, or even hundreds [2,[9][10][11][12][13][14][15][16][17][18][19][20][21][22]. In this case, the statistical distributions of mechanical properties can also be analyzed, and additional information obtained, for instance, on their conformity to a certain theoretical model (e.g., Gaussian [23], Weibull's [9][10][11][12][13][14][15][16][17][18][19][20][21][22]). ...
... Recent literature for the permeable concrete indicated that ML techniques were used to predict the permeability of permeable concrete [41], with authors emphasizing that permeability is the most crucial functional performance for the permeable concrete. ANN methods were also used to evaluate the compressive strength, porosity, and permeability of permeable concrete [42]. In addition, several correlations were constructed to investigate the density, porosity, and permeability of permeable concrete [43]. ...
... Matsumura K et al. (16) introduced air freezing and water freezing in CSG freeze-thaw tests, and their results showed that the freezing resistance of CSG with air freezing is approximately 10 times that of water freezing. Chen S, Zheng Y et al. (17) established a CSG freeze-thaw damage evolution model, which can predict the freezing resistance of CSG. G. Jin et al. (18) studied the influence of cement content on the strength and durability of CSG through freeze-thaw tests. ...
... e PSO algorithm proposed by Kennedy and Eberhart [18] has attracted great attention in recent years, because of its simple structure and fast convergence speed. Many scholars [19][20][21] have realized the application of PSO in back analysis for seepage parameters. Some mechanisms have also been developed to improve the PSO algorithm, such as immune particle swarm optimization (IPSO) [22][23][24], simulated annealing particle swarm optimization (SAPSO) [25], and chaotic particle swarm optimization (CPSO) [26]. ...
... Unlike traditional ones, these structures are movable and can be deployed or erected only in flooding times. Removable floodwall systems can be applied to individual buildings, smaller areas, or a large scale of the infrastructure such as dams, large-size port piers, railway tunnel portals, culvert openings of expressways, openings of civil air defense structures, and urban large-scale communities to prevent flood disasters [5]. Compared with traditional flood protection methods, the removable floodwall takes advantage of the low labor intensity, high work efficiency, and small seepage [6]. ...