Device and method for preparing remolded soil with specific water content

Abstract

The invention provides a device and a method for preparing remolded soil with specific water content. The invention is used for preparing the remolded soil with the specific water content in an indoor soil test. The device comprises a motor base, a charging basket and a water injector. The charging basket is arranged on the motor base, the bottom of the charging basket is provided with blades of a rotatable chassis for stirring the soil, the inner wall of the charging basket is provided with an upper humidity sensor, a middle humidity sensor and a lower humidity sensor which are connected with an outer wall humidity indicator, and a nozzle of the water injector is connected with a cover hole opening on the charging basket. Water in the water injector is pressured by a pressuring handle, so that the assembled charging basket is arranged on a rotation shaft of a motor of the motor base, and a power source is switched on, so that a soil sample is stirred. A speed adjusting disc for controlling rotation direction is arranged on the motor, so that the soil sample is stirred and the water injector is used for spraying water, and when the humidity sensors reach to a preset value, the stirring is stopped. The remolded soil with the specific water content is taken out for the indoor test. Compared with the existing method for preparing the remolded soil with the specific water content in the indoor test, the device and method disclosed by the invention are obvious in advantages, automatic to operate, and exact to prepare the water content.

Description

technical field [0001] The invention relates to a preparation device and method for specific moisture content of remolded soil, and is especially suitable for preparing specific moisture content of remolded soil such as sandy soil and clay in indoor tests. Background technique [0002] Soil is a soft aggregate of minerals or rock debris. Due to the different formation ages, environments and material components, the characteristics of soil are also complex and changeable. Therefore, before the design of the structure, it is necessary to fully understand and study the properties of the corresponding soil layer of the construction site in order to make a correct evaluation of the engineering geological conditions. [0003] At present, through long-term indoor and field applications, it is found that the moisture content of soil is closely related to the mechanical properties of soil. For example, the state of clayey soil changes due to the change of water content in the soil....

AI Technical Summary

Problems solved by technology

At present, the method commonly used in laboratory experiments is to manually mix the weighed remolded soil and distilled water in an open container. The moisture content directly obtained by this method is not accurate, and the water is easily volatilized by human factors during the mixing process. or sprinkled, repeated mixing to obtain the required soil, and then make soil samples with specific moisture content for related tests, so far there is no effective preparation method

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