9 results about "Earth surface" patented technology

A three-dimensional multi-pod windblown particle control device is used to control the deposition, accumulation and retention of windblown particles. The multi-pod device is formed by connecting beams to create legs which intersect one another at a crossing area. The ends of some of the legs contact the earth surface to support the device while the ends of the other legs extend in three dimensions to interact with the wind. The device may be formed by substantially identical X-shaped frame structures which intersect and connect with one another. The optimal spacing for using the devices in an array is within a range of approximately 0.5-1.5 of a transverse dimension across the surface area occupied by each particle control device.

A physical external-damage prevention apparatus for a directly-buried cable comprises a plurality of resistance devices buried over a cable at intervals, wherein a strong connecting device is connected between the two adjacent resistance devices, and the strong connecting device comprises a connecting cord horizontally connected between the two resistance devices at intervals. According to the physical external-damage prevention apparatus for the directly-buried cable provided by the present invention, by adopting the above scheme, the plurality of resistance devices are laid over the cable when the cable is buried, so that once excavation is performed when an identifier at the cable, the cable will not be damaged, thereby avoiding occurrence of accidents, such as cable breakage and short lines. The apparatus meets external-damage prevention strength requirements, and is low in cost and long in service life, and can achieve relatively high economical benefits. The installing construction is simple, installation without power interruption can be implemented, and the apparatus will not cause disturbance and impact on other devices in the installation process. The installation of the apparatus and the direct burying of the cable can be synchronized, and after the construction is completed, the original appearance of the earth surface can be restored, without affecting the city appearance.

The invention belongs to the technical field of geological exploration, and particularly relates to geological exploration equipment for geological exploration, when holes are drilled in a viscous gravel ground, crushed aggregates in a material taking pipe can extrude air in the material taking pipe, the air in the material taking pipe is discharged through a first vent groove and a second vent groove, and the air in the material taking pipe is discharged through the first vent groove and the second vent groove, it is guaranteed that the material taking pipe can be filled with the crushed materials, and then the material taking effect is guaranteed; after sampling is completed, a limiting block and a material taking pipe vibrate up and down under the combined action of the thrust of a cam and the elastic force of a reset spring, so that crushed aggregates adhered to the inner wall of the material taking pipe are separated from the inner wall of the material taking pipe, and the crushed aggregates are conveniently taken out; the angle of the ground nail can be freely adjusted, so that the ground nail is inserted into the ground surface according to the shape of the ground surface, the angles of the hemispherical block, the connecting rod, the pressing plate and the ground nail are kept unchanged in the drilling process through the supporting effect of the supporting rod, and therefore it is guaranteed that a drill bit always moves downwards along the axis, and a drilling pipe is prevented from being damaged.

The invention discloses a table lamp for simulating the light-facing surface of the earth, which comprises a lamp, a lampshade, a lamp post and a lamp holder. Located above the lamp holder, a globe is installed inside the earth facing surface simulation device, and the globe is installed outside the globe rotating shaft in the form of a sleeve, and the globe rotating shaft is supported by one end of the globe rotating block, and the globe rotating block is another One end is connected with the rotating mechanism, the outer end of the globe rotating block is provided with a lunar rotating block, the edge of the lunar rotating block is provided with a lunar supporting rod, one end of the lunar supporting rod is connected with the lunar rotating block, and the other end is installed Has a reflective lunar globe.

The invention provides an OVT gather processing method and device for PS wave seismic trace data and electronic equipment. The method comprises the steps that PS wave seismic trace data are mapped on a surface element grid of the CCP, a projection point of an imaging point of the PS wave seismic trace data relative to the earth surface is used as a center, a virtual shot point of the surface element grid relative to the PS wave seismic trace data is determined, and the virtual shot point and an original shot point of the surface element grid relative to the PS wave seismic trace data have the same shot-geophone distance. And based on the travel time of the PS wave seismic trace data at the virtual shot point reflected by the surface element grid, correcting the time distance curve to hyperbolic time distance relation of the PS wave seismic trace data, so that the PS wave seismic trace data is positioned on the common center point of the corrected seismic trace data relative to the conversion point reflected by the surface element grid. PS wave seismic trace data is mapped on the offset line grid of the OVT, OVT gather extraction is carried out on the PS wave seismic trace data, an OVT gather of the PS wave seismic trace data is obtained, and extraction information comprises offset, azimuth angle, coordinates of CMP points and travel time.