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Method of using film structure water bag in prepressing soft foundation

A technology of membrane structure and water bag, which is applied in the direction of infrastructure engineering, construction, etc., can solve the problems of low shear strength, long time for filling, and damage to the roadbed environment, etc.

Inactive Publication Date: 2003-11-26
HONGFA WARP KNITTING COMPOSITE NEW MATERIAL CHANGZHOU
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Problems solved by technology

Generally, the shear strength of weak foundations is low, which limits the rate of filling, resulting in a long time for filling. After the strength of the foundation increases, the loaded part of the earth must be excavated, which makes the construction period longer and the cost is also high.
In addition, the excavation of earth will damage the surrounding environment of the roadbed, and also damage the vegetation

Method used

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  • Method of using film structure water bag in prepressing soft foundation
  • Method of using film structure water bag in prepressing soft foundation
  • Method of using film structure water bag in prepressing soft foundation

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Embodiment Construction

[0008] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0009] Such as figure 1 As shown, a method for pre-compressing a soft foundation with a membrane structure water bag, the method is to stack a plurality of membrane structure water bags 1 filled with water on the soft foundation for pre-loading, and the pre-loading pre-loading for a period of time reaches the soft foundation After the reinforcement is required, the water in the membrane structure water bag 1 is drained and the membrane structure water bag 1 is taken away. The number of layers of the membrane structure water bag can be determined according to the needs. The more layers, the greater the preload on the soft foundation, which can shorten the time required for preloading and shorten the construction period.

[0010] Such as figure 1 , 2 As shown, the water bags used for preloading and preloading are modular, and can be made int...

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Abstract

The method of using film structure water bag in prepressing soft foundation is to stacking film structure bags filled with water on soft foundation to prepress for some period to reach the required foundation strength before the bags are drained and removed. The said method has short loading and unloading period, low cost and short construction period, and is significant to road construction.

Description

technical field [0001] The invention relates to a method for prepressing a soft foundation with a membrane structure water bag, which belongs to the field of road construction. Background technique [0002] In the construction of high-grade highways with high embankments on deep soft soil foundations, the conventional method used in engineering is to use piled earthwork preloading to strengthen the soft foundation, and to increase the strength of the foundation soil through piled up earthwork preloading. In order to reduce post-construction settlement, the height of piled earthwork is often much higher than the design elevation of the roadbed. Generally, the shear strength of weak foundations is low, which limits the rate of filling, resulting in a long time for filling. After the strength of the foundation increases, the loaded part of the earth must be excavated, which makes the construction period longer and the cost is also high. In addition, excavation of earth will da...

Claims

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Application Information

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IPC IPC(8): E02D27/28
Inventor 谈亚飞张晨曙
Owner HONGFA WARP KNITTING COMPOSITE NEW MATERIAL CHANGZHOU
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