Filter tube and super-soft soil solidifying device provided with same

Abstract

The invention provides a filter tube and a super-soft soil solidifying device provided with the same. The filter tube is a TPU wired hose. The TPU wired hose comprises a tube body made of TPU plasticmaterials, and a steel wire wound in the tube body spirally. The filter tube of the super-soft soil solidifying device has very high ring stiffness and cannot be vacuumized to be flat during vacuumizing generally, and the problem of flattening of a horizontal water drainage channel is free of worry.

Description

technical field [0001] The application relates to the reinforcement technical field of newly dredged ultra-soft soil (such as flow-plastic silt) in geotechnical engineering and port engineering, in particular to a filter pipe and a super-soft soil solidification device equipped with the filter pipe. 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 that the technology is b...

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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.

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