... the soil thermal conductivity, thermal diffusivity and thermal resistance in the pile. A three-dimensional numerical model was established and verified by a large sandbox test. The numerical model was used to generate virtual TRT data, and the pattern search algorithm was adopted to estimate the parameters...

... of long perimeters such as underground tunnels. In this paper, we propose a DAS-based method for the recognition of disturbance events along tunnels. The EMD denoising algorithm is employed to optimize vibration signals to better extract the time–frequency domain features of monitored events. Different...

... [6, 7]. NASA's Earth Observing System provides free, short time series of Moderate Resolution Imaging Spectroradiometer (MODIS) data products, which can acquire data four times in one day. Split window algorithm is used for temperature processing, however, the data quality of the LST products...

... tend to a posterior distribution. Through numerical simulation, the algorithm is verified, and error analysis is carried out. Within the structure, the resistivity is mainly controlled by the structural characteristics, so the formation lithology has great uncertainty in the geological structure area...

... the discrete element method is widely used. However, the discrete element method is an explicit algorithm, so its computational efficiency is one of the leading limitations of its development. hydraulic fracturing geologist specimen geology reservoir geomechanics environmental science 861 particle...

... failures. An on-site risk assessment tool is needed, to map the input construction error and water-tightness performance of the cut-off walls quickly and accurately. Although a highly efficient physical-based algorithm (three-dimensional discretized algorithm, TDA) is developed, its calculation speed may...

... Abstract Landslide susceptibility is an important activity in landslide hazard assessment. With the advancement of artificial intelligence, the machine learning algorithm is applied in the landslide susceptibility assessment, has recently gained immense attention due to the advantages...

... computing by adding just three lines of the new code with the help of OpenMP. A simple virtual cloud machine is used to run the program to validate the improved efficiency of the newly developed algorithms. A 3.5 speedup ratio is achieved with four CPU cores and eight processors. 1. Introduction...

... Abstract Abnormal points in underground space monitoring data contain valuable information. An anomaly detection algorithm based on characteristic space is proposed in this document. First, based on a temporal edge operator, the edge amplitude of each point in time series data is calculated...

... or tiny faces), traditional contact detection and solution approaches may predict incorrect or inaccurate results due to the inappropriate choice of contact parameters or algorithmic robustness problems. Aimed to solve the above disadvantages of conventional contact detection and solution approaches...

... landslide sensor artificial intelligence society iop publishing iop conf algorithm social responsibility displacement conference intelligent wireless displacement sensor displacement sensor variation threshold sustainability sustainable development environmental science 861...

... Abstract Contact theory proposed by Shi expresses the contact problem mathematically by establishing an entrance block and reference point, which greatly reduces the complexity of the contact problem. In this paper, a contact detection algorithm based on contact theory for blocks of arbitrary...

... geologist graph plane convex pyramid pyramid stability environmental science 861 analysing block stability reservoir characterization vector conference varying resultant force removability geology algorithm society iop publishing iop conf application Abstract Block theory...

... Abstract Accurate estimation of the thermal properties of soil and concrete piles is critical for designing energy piles. This paper proposes an algorithm that can simultaneously estimate the thermal conductivities and diffusivities of soil ( k s and a s , respectively) and concrete piles...

... conference earthquake platform geologist expert system numerical simulation avenue station database algorithm 11th Conference of Asian Rock Mechanics Society IOP Publishing IOP Conf. Series: Earth and Environmental Science 861 (2021) 072042 doi:10.1088/1755-1315/861/7/072042 Application of multi...

... Abstract Existing methods for the generative design of architecture mainly focus on layout planning, and the genetic algorithm is popular in related research. However, the genetic algorithm is not available for non-quantitative problems (e.g., visual comfort) and inefficient for complex...

..., boreholes, and stratigraphic contacts. A multi-stratigraphic sequence was constructed via a curve/surface tracking algorithm, and optimal geological interfaces were screened using universal cokriging equations. The geological modeling for a HLW disposal repository shows that under different data...

... defect geological subdiscipline algorithm conference geologist reservoir geomechanics society iop publishing iop conf hyperplane artificial intelligence void defect detection dataset technology geology machine learning environmental science 861 svm university void detection...

... algorithms, (2) Rough extraction of block discontinuities combination by distance filtering and angle filtering, (3) accurate identification and extraction of blocks by applying mutual projection of centroid and adding angle repair coefficient, (4) calculation of block size by filling in the concavity...

... that as the angle between discontinuities increases, the recognition effect decreases. Furthermore, the roughness of the discontinuity makes it more likely to cause incorrect classification during the detection process. The effectiveness and limitations of structural plane information algorithms based on TLS...