5 results about "Erosion surface" patented technology

The embodiment of the present application discloses a shale-rich contourite deposit identification and sequence establishment method, device, equipment, medium and program product, the method comprises: identifying the lamina group of shale sample and the lamina of the lamina group; determining the lamina type of the lamina, the lamina type is mud lamina or silt lamina; and based on the grain size variation characteristics corresponding to the lamina group, the characteristics of the lamina type, and the lamina interface form, determining whether the lamina group is a typical lamina group of shale-rich contourite deposit, and identifying the shale sample as shale-rich contourite deposit when the lamina group is a typical lamina group; wherein the texture characteristics of the typical lamina group are the layer lamina type positive texture of carrying erosion surface and small-scale cross-bedding or the interactive horizontal texture of carrying small-scale silt lens. The embodiment of the present application can accurately and quickly identify the shale-rich contourite in the shale without biological disturbance characteristics, and accurately and quickly establish the corresponding shale-rich contourite deposit sequence.

The application discloses a kind of marine engineering components and its service performance evaluation and prediction method, system, comprising: component includes geopolymer matrix and sensor network buried in geopolymer matrix;The embedding depth of each sensor in sensor network is determined according to the total thickness of the erosion surface direction of component in nonlinear logarithmic gradient, and sensor layout density is adaptively adjusted with component thickness.Sensor obtains detection data, calculates service performance evolution index, obtains the time mapping relationship of component in marine exposure station natural erosion and laboratory accelerated erosion at the same service performance evolution index, and calculates acceleration factor, combines acceleration factor, service performance evolution index and three-dimensional pH field distribution cloud picture, completes component service performance evaluation and residual life prediction.The application solves the problem that monitoring data lags behind, lacks in-situ microcharacterization and laboratory and field evaluation system is disjointed in the evaluation of existing marine engineering materials.

The invention discloses a multi-stage difference uplift area ancient landform restoration method, and the method comprises the following specific steps: S100, carrying out the detailed interpretation of a seismic section, and recognizing a main unconformity surface; s200, finding out a stratum denudation original point and a maximum denudation point position, solving a stratum thinning rate, and calculating an original thickness of a denudation section; s300, an original deposition boundary is determined on the seismic backbone section, and denudation thickness recovery is carried out in combination with the residual thickness map; s400, identifying the mark layer; and S500, recovering the form of the ancient landform by using a marker bed-thickness analysis method based on a residual thickness method and an impression method. According to the method, partition difference recovery of stratum denudation thicknesses of different structure parts by tectonic movement is comprehensively considered, deposition-settlement compensation consistency is considered, the paleo-structure recovery precision is higher, the situation that whether erosion depression and residual hillocks exist on a paleo-erosion surface after paleo-denudation is not considered in a paleo-landform recovery method is improved, and the recovery efficiency of the paleo-landform recovery method is improved. And the problems of incomplete factors and limitation are solved.

The invention discloses an earth-rockfill dam breach lateral erosion rate analysis method which comprises the following steps: S1, establishing a breach model, selecting a breach inflow section and a breach outflow section as a control body, and determining fluid mechanics control parameters of the control body; wherein the fluid mechanics control parameters comprise length, water depth, flow velocity and pressure intensity; s2, according to the law of conservation of energy, establishing a total energy power equation of water flow consumption; s3, establishing a linear relationship between the undercut erosion rate and the shear force of the water flow acting on the erosion surface in unit area; s4, based on the total energy power equation of the water flow consumption and the linear relation between the undercutting erosion rate and the unit area point shear force of the water flow acting on the erosion surface, a lateral erosion rate model is established and used for calculating the lateral erosion rate of the earth-rockfill dam breach; according to the method, the earth-rockfill dam breach lateral erosion rate is calculated by establishing the breach model and the energy power equation and combining the linear relation between the shear force and the erosion rate.

The invention relates to the field of control valve detection, in particular to a sensor for detecting washing, cavitation, corrosion and other damage of internal parts of a high-parameter control valve and the control valve using the sensor. The sensor comprises a circuit layer clamped between two detected pieces; the two detected pieces are respectively provided with a channel, and the circuit layer is annular and is clamped between the end faces, perpendicular to the axial direction of the channels, of the two detected pieces. The circuit layer is provided with at least one detection part, and each detection part comprises a plurality of resistor assemblies which are arranged at intervals from a washing surface close to a detected piece to a washing surface far away from the washing surface; each resistor assembly comprises at least two resistors which are arranged along the outline of the section, parallel to the circuit layer, of the washing surface; in each detection part, the aligned resistors, from the position close to the washing face to the position away from the washing face, of the resistor assemblies are connected in parallel. According to the invention, on-line detection of physical damages caused by cavitation, scouring, corrosion and the like of key parts can be accurately and reliably realized.