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Partition disposal method for salts on saline soil subgrade

A disposal method and saline soil technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as high cost, violation of green economy, waste of resources, etc., to reduce project cost and improve road construction level , The effect of speeding up the construction progress

Inactive Publication Date: 2017-04-26
SHANDONG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This kind of full-spread partition project is expensive, violates the concept of green economy, and causes a great waste of resources. Therefore, a new type of saline soil subgrade partition disposal technology is urgently needed in the engineering field

Method used

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  • Partition disposal method for salts on saline soil subgrade
  • Partition disposal method for salts on saline soil subgrade
  • Partition disposal method for salts on saline soil subgrade

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Embodiment Construction

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0037] Engineering background: Jidong Expressway is located in the northern part of Shandong Province. The climate along the line is dry, the groundwater level is high and the salinity is high, and the foundation soil of many sections is medium saline soil, which seriously affects the performance of the paved roadbed. According to the investigation of saline soil along the Jidong Expressway, the 14th contract section is a section with serious salinization on the whole line. In order to verify the feasibility and effectiveness of partial isolation treatment of saline soil subgrade, K122+359.7~K122+420 with the most serious ground salinization in the 14th bid section was selected for test road paving. According to field surveys, the subgrade height of the test section is about 3m,...

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Abstract

The invention discloses a partition disposal method for salts on a saline soil subgrade. The salt accumulation laws of the unsaturated soil subgrade under a non-partition condition and a local partition condition are obtained by coupling two physical fields of moisture movement in the unsaturated soil subgrade under the influence of capillarity and solute transport of salts serving as solutes and moving along with the moisture movement together, and a reasonable partition length is determined. Based on the above method, the reasonable partition length is calculated and then applied to practical engineering, so that the partition length is effectively determined, the effects of partition are ensured, and diseases of the saline soil subgrade are avoided; the local partition technology can substitute an all partition technology, thereby meeting the disposal requirement of the saline soil subgrade, saving a large amount of precious resources, effectively accelerating the construction progress, furthest reducing the influence on surrounding environment and having a broad application prospect.

Description

technical field [0001] The invention relates to the technical field of saline soil roadbed disease treatment, in particular to a method for treating saline partitions on saline soil roadbeds. Background technique [0002] Highway construction is the link of the country's basic industry and economic development, but it also faces many problems. Saline soil refers to the general term of saline soil, alkaline soil and salinized and alkaline soil produced under the combined action of natural factors, human factors and other factors. In the field of highway engineering, it refers to the salt content in the soil layer 1m deep from the surface exceeding 0.3%. soil. The eastern coast or western inland of my country is an area where saline soil is widely distributed. The unfavorable engineering properties of saline soil, such as salt heaving, frost heaving and dissolution, will aggravate the frost heaving and muddying of the subgrade, seriously affecting the stability and durability...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/13G06F30/20
Inventor 姚占勇毕玉峰蒋红光李新蔚赵庆滕显飞于君彦
Owner SHANDONG UNIV
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