Palm fiber reinforced soil, preparation method thereof and application

A technology of palm fiber and reinforced soil, which is applied in excavation, soil protection, construction, etc., to achieve the effect of low cost, good reinforcement performance, and improved unconfined compressive strength

Inactive Publication Date: 2013-12-04
UNIV OF SHANGHAI FOR SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • Palm fiber reinforced soil, preparation method thereof and application
  • Palm fiber reinforced soil, preparation method thereof and application
  • Palm fiber reinforced soil, preparation method thereof and application

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Embodiment Construction

[0014] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0015] attached figure 1 It is a flowchart of the preparation method of palm fiber reinforced soil of the present invention.

[0016] As shown in the figure, first carry out batching S1, process the soil and palm fiber into the state required by the process, and mix them in a certain proportion. The soil (maximum dry density 1.62g / cm2) will be taken from the underground of Zhangjiang Science and Technology Park in Pudong, Shanghai about 3 to 5 meters 3 , plastic limit moisture content 20.56%, liquid limit moisture content 42.34%, plasticity index 21.78) air-dried under natural conditions, crushed, and then passed through a 2mm geotechnical sieve, each group of tests weighed 5000g of dry soil; processed palm fiber separately 2mm×2mm, 2mm×4mm, 2mm×6mm, 2mm×8mm, 4mm×8mm, 4mm×4mm, 4mm×8mm and 4mm×16mm, a total of 8 different sizes...

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Abstract

Disclosed is palm fiber reinforced soil. A preparation method of the palm fiber reinforced soil includes the steps: weighing a certain weight of dry soil; machining palm fibers into 2-16mm long and 2-4mm wide rectangles with the length-width ratio of 1:1-4:1 and weighing the palm fibers with the weight accounting for 0.25%-2.0% of that of the soil; uniformly mixing the palm fibers with the dry soil to obtain reinforced soil mixture; uniformly mixing the reinforced soil mixture with a certain weight of water into a plastic flow state to obtain reinforced soil precursors; placing the reinforced soil precursors into a mould; performing maintenance under the condition of normal temperature and evaporating water under the until the water content reaches a preset value to prepare the palm fiber reinforced soil.

Description

technical field [0001] The invention relates to a palm fiber reinforced soil, which is used for soft soil reinforcement and side slope protection, and belongs to the field of soil modification and reinforcement. Background technique [0002] In my country's coastal areas, cohesive soils are widely distributed, especially near the estuaries of the Yangtze River, Yellow River, Haihe River, Qiantang River, Yongjiang River, Minjiang River and Pearl River. In these areas, the soil layers on the foundations of buildings and structures often consist of soft clay. These widely distributed muddy silty clays, muddy clays and clays have the characteristics of large void ratio, high water content, high compressibility and low strength, which are likely to cause serious adverse effects on the project. At present, the modification and solidification of soft clay mostly adopts physical methods, physicochemical methods or chemical methods to improve the strength and stability of soft clay ...

Claims

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Application Information

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IPC IPC(8): E02D3/12E02D17/20
Inventor 璩继立李陈财李贝贝刘宝石魏天乐
Owner UNIV OF SHANGHAI FOR SCI & TECH
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