Feb. 2009
Analysis of the effect of water content on the backbone of earth pressure
Wing wuping
Akanjiang tontti
Li ling
Xinjiang university school of architectural engineering, urumqi
830008
Summary: from the effect of water content on the road-based soil, the mechanism for the effect of water content during the route-based pressure process was presented, as well as the different methods of control used for different soil properties。
Finally, the pressure patterns of low-liquid limit powdered soil were explored in conjunction with the field。
Keywords: water content; pressure level; stability
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Water content of soil company mechanisms
Ran wu-ping
A kenjiang
Tuohuti
Li ling
(college of architecture engineering)
Xinjiang university
Urumqi
Xinjiang
830008
China
Abstract
The environment mechanised from the water content to the subgrad soil, to introduce in the roadbed company
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Key words
Other organiser
Density
Status
Status and issues
In the roadworks
In order to provide the base with sufficient strength and stability
It is necessary to increase the density of the lukis。
And the earth is a triad
The particles are skeletons and the gaps between them are occupied by water and air. The aim of the pressure is to rearrange the particles, reduce the holes and raise the earth
Quality in unit form, forming a solid whole, and the dry density of the earth is an important indicator of the extent of the earth's density. Water content is the key to affecting soil pressure
One of the factors. And knowing that all kinds of earth-pressure mechanisms can achieve maximum dry density with minimal pressure to meet construction and design specifications yes
Request, which has resulted in an overall increase in the strength of the route base and its water stability。
To date, domestic norms or standards have been based more on the best water content of the test, and based on
2%
3%
Incremental, diminishing control
Criteria for water content. But the standard of experience with the optimal water content of this solid curve is no longer consistent with today's earth-based reality
As construction control of water content is influenced mainly by soil properties, pressure capacity of crushers and parameters required for filling。
The effect of water on soil
When the amount of water is smaller, as the amount of water increases, the dry density follows
It's bigger
;the maximum dry density is reached when the amount of water load is increased to a value, if
Increased water content has begun to decrease dry density. As shown
As indicated。
This is an explanation for the change
It's usually the presence of water in the earth
State theory
The theory suggests that the water in the soil is in two states
It's a free water that's consistent with liquids
Another one that surrounds the surface of the earth
Watery. The combination of water is divided into strong and weak water. A combination of water
Water adsorbed to the surface of the earth by electron molecules forms a water membrane。
This is an electric molecule that attracts thousands to tens of thousands of atmospheric pressures
Make water molecules and
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