15 results about "Ground temperature" patented technology

The application discloses a kind of deep melting interlayer development area rigid pile composite foundation structure design method, it is related to rigid pile composite foundation field, including the following steps: step one, in the existing rigid pile bearing capacity calculation process, front-end increase subgrade-ground temperature field analysis;Step two, increase groundwater analysis;Step three, determine the compression modulus of the soil layer of seasonal freeze-thaw layer, (water-rich) melting interlayer, permafrost layer, bearing capacity characteristic value, check the single pile bearing capacity characteristic value of different positions in the cross section of roadbed using different pile length, pile diameter, pile body stiffness material;Step four, carry out zoned unequal design, adjust pile length, pile diameter, pile body stiffness, so that the range of all pile single pile bearing capacity characteristic values in cross section is lower than design allowable value.The application effectively optimizes pile foundation design, reduces material waste, reduces engineering cost, while ensuring the safety and stability of structure.

The present invention provides a method for planting a plant using a heat-shielding plate, the method comprising the steps of: preparing a heat-shielding plate by applying a polymethyl methacrylate (PMMA)-based heat shielding paint containing a heat-treated mineral-derived powder to at least one surface of a porous substrate; cutting the heat-shielding plate; forming an excavated surface by performing excavation at a location where a plant is to be planted where a plant is to be planted; arranging the heat-shielding plate around the excavated surface such that the excavated surface is exposed; and fixing the heat-shielding plate to the ground. According to the method, solar radiant heat is reflected to reduce the ground temperature, suppress evaporation of moisture, and maintain air permeability, thereby creating an environment favorable to plant growth.

The present application provides a wing hot air anti-icing control system and an air anti-icing pressure control method. The system comprises a wing anti-icing valve, a wing anti-icing pressure sensor, a wing anti-icing temperature sensor, a wing anti-icing ground temperature monitoring sensor, a wing anti-icing monitoring pressure sensor, a wing anti-icing controller, a bleed air fan valve and a flute type pipe. The wing anti-icing controller comprises independent control channels and monitoring channels, and the wing anti-icing valve comprises independent valve shutdown circuits and valve adjustment circuits. The present application can realize ground and air anti-icing, and the anti-icing is more accurate according to the wing anti-icing pressure sensor than the anti-icing according to the reference upstream bleed air temperature. In the case of single-engine bleed air anti-icing, bleed air failure or performance decline, etc., the anti-icing or maximum anti-icing can still be performed under the condition of ensuring the optimal aircraft. Therefore, the present application can not only effectively reduce energy consumption, improve economy and safety, but also has good anti-icing effect and good universality.

The application discloses a road waterlogging risk assessment method based on unmanned aerial vehicle sensing, and belongs to the technical field of traffic safety risk assessment. In order to solve the problems of high-precision, sustainable road waterlogging monitoring and auxiliary decision-making, a conversion model of image pixels and actual length is constructed, a relationship model of pixel gray scale of an infrared image obtained by an infrared thermal imager and ground temperature is established, waterlogging depth is calculated by using the infrared image obtained by the infrared thermal imager, a waterlogging mask mark is generated, the area and volume of a waterlogging region are estimated, the influence of waterlogging depth on the friction between a road and a tire is considered, the friction coefficient under a wet and slippery condition is calculated, the friction coefficient under the wet and slippery condition is corrected by introducing shear stress to obtain the friction coefficient of shear effect, then the recommended vehicle speed is calculated based on the current friction level of the road and the change rate of waterlogging, and a traffic comprehensive risk score model of the road under the waterlogging state is established to assess the road waterlogging risk.

The application discloses a cold storage temperature adjustment ventilation roadbed system and method suitable for high-temperature-amplitude permafrost regions and belongs to the technical field of permafrost engineering. The system comprises a roadbed body, a ventilation pipeline system, a cold storage unit conveying system and a valve control device. The cold storage unit conveying system comprises a track structure and a cold storage unit movable along the track structure. The ventilation pipeline system is a three-section structure, three-section ventilation pipelines are sequentially connected through a corner circular pipe, and an overall "S" shape ventilation path is formed. The track structure guides the cold storage unit to reciprocate between the external environment and the roadbed interior in the ventilation pipeline system along the track structure. The valve control device selectively opens or closes the ventilation pipeline system according to the difference between the external environment temperature and the roadbed interior temperature, and realizes ventilation heat dissipation or closed heat preservation working condition switching. The application realizes passive regulation and control of the roadbed temperature through the synergistic effect of ventilation heat exchange and cold storage temperature adjustment, improves the utilization efficiency of low-temperature resources, slows down permafrost degradation, and improves the stability of the permafrost roadbed.

The present invention relates to an artificial turf system for park golf with improved isotropic ball rolling performance, which provides uniform resistance regardless of the direction of impact through infrared blocking and a surface embossing structure for reducing ground temperature, heat dissipation through a C-shaped or omega (Ω)-shaped cross-sectional structure, and 1:1 synchronization of weaving spacing. Specifically, the artificial turf system for park golf comprises a turf yarn that dissipates heat by having an embossing groove formed on its surface and a C-shaped or omega (Ω)-shaped cross-sectional shape, and a turf yarn that penetrates and is planted, and a support layer coated on one side and a turf yarn, and a different type of filler formed of a plurality of particles with different particle shapes and sizes.

This invention relates to the field of rock mechanics engineering technology and discloses a device and method for simulating the coupling of osmotic pressure and temperature based on true triaxial electromagnetic loading. The device includes a triaxial electromagnetic loading assembly, a test chamber, six dynamic sealing assemblies, an osmotic pressure assembly, a heating assembly, and a data acquisition assembly. The test chamber is located in the middle of the triaxial electromagnetic loading assembly, with six surface openings that cooperate with waveguide rods. The six sets of dynamic sealing assemblies seal the openings and gaps between the sealing assemblies and the waveguide rods to form a sealed cavity. The osmotic pressure assembly connects to the sealed cavity, the heating assembly is located in the test chamber, and the data acquisition assembly collects experimental data. This structure enables synchronous dynamic loading in three axes and six directions, and allows for precise synchronous control of osmotic pressure and temperature within the sealed cavity during dynamic loading. It solves the problem of traditional devices only performing single-axis dynamic loading and being unable to collaboratively simulate multi-field coupling environments, realistically reproducing the environment of deep rock masses with "high ground stress, high ground temperature, and high osmotic pressure" coupled with multi-axis and multi-directional dynamic disturbances.

The utility model provides a utilize the underground cultivation corral of ground temperature regulation, including the corral main part, the equal distance of the top of corral main part has opened six group ventilation, every group ventilation of corral body rotatoryly installed two top windows, two the rotatoryly connected place of top window is fixed with connecting shaft, the bottom of corral main part is fixed with two group exchange pipe, the both ends of exchange pipe are worn out corral main part back, exchange pipe is in the bottom of corral main part and is in the shape of a snake arrangement, the back bottom of corral main part is fixed with the air intake box, the inside of air intake box is opened with two air inlets and two air outlets, relative to prior art, through the corral is submerged to the ground below two meters, make full use of the stability of ground temperature, the temperature in the corral is automatically regulated, solve the adverse effect of winter and summer extreme temperature on the growth of cattle and sheep, guarantee the forage conversion rate, improve the breeding efficiency.

This utility model discloses a greenhouse ground temperature monitoring device, including a bracket set inside the greenhouse. A data acquisition and display terminal is mounted on the bracket, and a wireless transmission module is mounted on the side of the data acquisition and display terminal and on the bracket. Multiple ground temperature sensors are mounted on the front of the bracket, and connecting cables are provided between the multiple ground temperature sensors and the wireless transmission module. An electronic circulating dehumidification card is mounted on the side of the data acquisition and display terminal, and fixing components are provided at the bottom and top of the electronic circulating dehumidification card. By mounting the electronic circulating dehumidification card at the heat dissipation holes on the side of the data acquisition and display terminal and installing the electronic circulating dehumidification card with the fixing components, the monitoring device actively absorbs moisture from the surrounding small area of ​​air through the electronic circulating dehumidification card when it is working, maintaining a low humidity environment at the heat dissipation holes of the terminal for a long time, thus protecting the operation of the monitoring device.

This invention discloses a method for measuring soil saturated hydraulic conductivity, belonging to the field of soil testing. The method involves acquiring remote sensing images of the area to be measured, and collecting vegetation cover data and slope data from these images, while simultaneously collecting ground temperature data in the field. The vegetation cover data, slope data, and ground temperature data are preprocessed to obtain vegetation cover correction factors, slope correction factors, and ground temperature correction factors for the area to be measured. An optimized coefficient for measuring soil saturated hydraulic conductivity is then constructed. This optimized coefficient is used to adjust the baseline value of soil saturated hydraulic conductivity, enabling more accurate measurement of soil saturated hydraulic conductivity and providing more precise guidance for agricultural production.

The application discloses a tunnel temperature comfort zone range determination method considering altitude and ground temperature, relates to the tunnel engineering blasting construction technical field, and comprises the following steps: obtaining design required air volume under different conditions and different altitudes according to model parameters, environment parameters and design specifications; obtaining required air pipe wind speed and air supply temperature under different altitudes according to model parameters, environment parameters, design required air volume under different conditions and different altitudes; obtaining tunnel temperature field changes when the ground temperature is constant and the altitude changes and when the altitude is constant and the ground temperature changes according to the required air pipe wind speed and the air supply temperature under different altitudes; and obtaining the tunnel temperature comfort zone range under arbitrary altitude and ground temperature according to the tunnel temperature field changes when the ground temperature is constant and the altitude changes and when the altitude is constant and the ground temperature changes. The application can determine the tunnel temperature comfort zone range in the tunnel construction ventilation blasting stage under the special environment of high altitude and high ground temperature.

The utility model relates to ground temperature ice melting heat stick technical field discloses a structure of ground temperature ice melting heat stick, including connecting seat, the top fixed connection of connecting seat has installation wire harness, the bottom fixed connection of connecting seat has first heating rod. The utility model provides the convenience for the cleaning of ice melting heat stick through the design of setting up cleaning sponge ring, and the cleaning sponge ring is clamped by installation clamping frame no.

The present application relates to the field of agricultural planting technology, and discloses a multi-crop time sequence germination and sowing method and system based on intelligent controlled release material, aiming at the defects of high cost and easy seedling damage caused by multiple agricultural machinery entering the field for traditional intercropping, the present application constructs an intelligent controlled release coating for delayed germination crop seeds, which comprises an awakening growth promoting layer, a temperature sensitive phase change layer and an environmentally degradable layer from inside to outside; obtains the environmental parameters of the sowing area and the preset seedling interval time, determines the target thickness of the middle and outer layers through model calculation and carries out precise coating; then, the conventional seeds and the coated seeds are sown at one time. After sowing, the conventional seeds germinate immediately; after the preset degradation time, when the ground temperature reaches the phase change threshold, the middle layer forms a water permeable channel, the water enters to trigger the inner layer to expand and break the coating, thereby breaking the dormancy and starting the germination. The present application realizes the same sowing and different emergence, significantly reduces the operation cost, and avoids the contradiction between the seedling damage by agricultural machinery and the competition during the symbiotic period of crops.