Draining board and ultra-soft soil curing device with draining board

Abstract

The invention provides a draining board and an ultra-soft soil curing device with the draining board. The draining board comprises a board core, a filter membrane and a draining channel, wherein the draining channel is formed between the board core and the filter membrane, and the board core is fixedly connected with the filter membrane. The ultra-soft soil curing device has the advantages of lowprice, high energy utilization rate, no need of sand bed and good curing effect, the curing treatment on new blow filling ultra-soft soil can be preferably performed, the board core of the draining board is fixedly connected with the filter membrane, the filter membrane is connected with the board core all the time and cannot be disengaged from the board core under the action of extrusion of soiland negative pressure, and the draining channel is open all the time.

Description

technical field [0001] The application relates to the reinforcement technical field of recently dredged ultra-soft soil (such as flow-plastic silt) in geotechnical engineering and port engineering, and in particular relates to a drainage board and a super-soft soil solidification device equipped with the drainage board. Background technique [0002] In geotechnical engineering and port engineering, the conventional foundation treatment method for newly dredged ultra-soft soil (such as flow plastic silt) is vacuum preloading method. The basic principle of the conventional vacuum preloading method is to use drainage boards to form vertical drainage channels, filter pipes and sand cushions to form horizontal drainage channels, and use jet pumps to form negative pressure, and water is discharged out of the soil under the action of negative pressure, thereby To achieve the purpose of strengthening super soft soil. The advantage of the conventional vacuum preloading method is tha...

AI Technical Summary

Problems solved by technology

The advantage of the conventional vacuum preloading method is that the technology is basically mature, all kinds of raw materials, devices and equipment in the vacuuming system have been fully marketed, and the application area has been relatively extensive; the disadvantage is that the components of the vacuuming system using the conventional vacuum preloading method There are certain limitations: the conventional drainage board is easy to silt up, and the drainage performance is even worse after being vacuumed for a period of time; although the conventional filter tube has a certain ring stiffness, it is often easy to sag under the continuous vacuum pressure. affect the transmission of vacuum; the conventional way of binding the filter pipe and the drainage board leads to a great consumption and waste of vacuum; as a resource (especially high-quality medium-coarse sand), the sand cushion is more and more popular in coastal areas. It is becoming more and more difficult to obtain, and from the perspective of marine environmental protection, it is not allowed to continue to exploit coarse sand resources in the ocean; the energy utilization rate of traditional jet pumps is only about 30%, which greatly wastes precious electric energy

Due to the negative pressure effect of vacuum preloading, the binding connection parts in the whole system often have sludge clogging. Once the filter tube is flattened and deformed, the vacuum transmission effect of the whole connection part is very poor.

Images