Sand filling device and sand filling method for bagged sand well

Abstract

The invention discloses a bag sand well sand filling device. The device comprises a rack, a sand storage funnel, an operation platform, a sand bag groove, a sand bag groove guide rail, a locking and limiting mechanism, a sand bag sliding slope, a sand bag groove left side plate opening baffle, a plane rotation hinged shaft and a location pile plate. According to the bag sand well sand filling device, the sand storage funnel is set up on the rack, sand bags are filled through the inclined sand bag groove, according to soil mechanics principles, when the inclination angle in sand bag filling is larger than the internal friction angle of sand (that means larger than a normal angle of repose) by filling the sand bags through the inclined sand bag groove, it is guaranteed that both the fact that weaved bags can be successfully filled with the sand under the self-supporting effect and the filling can not be too compact and the sand bags are safe and can not crack when being put down, conveyed and put into a well hole.

Description

technical field [0001] The invention belongs to the field of building construction, in particular to a sand filling device and a sand filling method for bagged sand wells. Background technique [0002] Silt and muddy soft soil have the characteristics of high water content, large void ratio, high compressibility, sensitivity, low bearing capacity, long deformation duration, and easy thixotropic instability. According to the consolidation theory, the time required for the consolidation of soft clay is proportional to the square of its phase-drainage distance. In order to accelerate the consolidation of the foundation, the most effective way is to increase the drainage path of the soil layer and reduce the drainage distance. The bagged sand well is set up for this purpose. The bagged sand well is economical for treating deep and thick soft soil, and the technology is mature, and it is widely used in soft soil areas all over the country. Under the action of the upper load, th...

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Problems solved by technology

Practice has found that after the filling of sand bags is completed, due to the gravity of the sand, the filling is too dense. During the process of putting down the sand bags, about 20% of the sand bags burst, and nearly 20% of the sand bags burst during the process of transportation and filling into the wellbore. Burst, serious damage

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