Three-dimensional drain and construction method thereof

Abstract

The invention relates to a three-dimensional drain which comprises a vertical drainage pipeline; and the three-dimensional drain is characterized in that the vertical drainage pipeline is externally connected with a lateral drainage pipeline in a rotary support or bolted connection mode, so that the lateral drainage pipeline can rotate 0-90 degrees in the vertical direction; meanwhile, the side walls of the vertical drainage pipeline and the lateral drainage pipeline are uniformly provided with permeable holes, and the vertical drainage pipeline and the lateral drainage pipeline are respectively wrapped with a filter screen. The two ends of the vertical drainage pipeline are respectively provided with a screw thread; in the process of construction, a first three-dimensional drain is subjected to bottom sealing processing firstly; then, the lateral drainage pipeline of the first three-dimensional drain is turned, so that the lateral drainage pipeline is perpendicular to the vertical drainage pipeline; and the first three-dimensional drain is subjected to piling by using a digging machine or in an artificial auxiliary mode, the screw threads at the ends of the first three-dimensional drain are exposed, and the first three-dimensional drain is connected with the next three-dimensional drain by using a threaded connection cap by aid of the screw threads at the ends of the first three-dimensional drain until the length required by the whole piling process is satisfied, then the construction on a three-dimensional drain system is completed. The three-dimensional drain disclosed by the invention is a three-dimensional, multi-directional and reusable drain, and can shorten the drainage path of foundation soil and accelerate the consolidation of foundation soil.

Description

technical field [0001] The invention relates to a three-dimensional drainage body for treating soft soil foundations, in particular to a three-dimensional drainage body capable of draining water in multiple directions, suitable for vacuum preloading, surcharge preloading, well point dewatering, etc. It is used in various soft foundation and soil treatment projects for laying drainage bodies. Background technique [0002] With the rapid increase of the population and the expansion of the space for activities, it is also necessary to consider the requirements of grain, oil, vegetable farmland and forestry to feed a large number of people and the requirements of environmental protection. Land resources are becoming more and more scarce. Seeking land resources from the sea is an important way to develop land resources. Over the past two decades, large-scale land reclamation dredging land reclamation foundation reinforcement treatment technology has been widely used in port yard...

AI Technical Summary

Problems solved by technology

The common point of the treatment methods of the above several dredged land foundations is that they all need to set up similar vertical drainage bodies such as plastic drainage boards or sand wells in the foundation. However, the traditional vertical drainage bodies have the following defects: one is the direction of drainage The single, relatively long drainage path, smearing and well resistance effects greatly reduce the drainage capacity of the vertical drainage body in the middle and late stages. The pressure cycle is often longer, so it consumes more energy; second, the general vertical drainage body can only be used once and cannot be reused, which wastes natural resources, such as plastic slabs, sand wells, etc.; third, the traditional vertical drainage The overall strength of the foundation soil after the treatment of the drainage body is uneven, and the strength far away from the drainage body is low

To sum up, the traditional vertical drainage body cannot achieve the purpose of shortening the preloading period, cannot quickly and high-quality reinforce the soft soil foundation, and consumes a lot of energy and natural resources, and cannot achieve the current goal of energy saving and emission reduction

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