How to reduce soil moisture content? As the soil moisture content increases, so does something

The key to reducing the moisture content of the soil is to make the water molecules in the soil.

It is fixed in the form of crystalline water, and a suitable curing agent is selected.

Very important. Yichen Environment's soft soil in-situ curing system is a kind of soil curing equipment, which is composed of three parts, of which the powder bin is the tank for storing the curing agent, and the intelligent proportioning workbench is compounded with the curing agent, and the synthetic curing agent is transported through the hose to the mixing head installed in the excavator. The mixing head is responsible for mixing the curing agent with the soil, and the effect of in-situ curing can be achieved after the curing agent soil has a sufficient reaction.

In the 2009 edition of the construction budget quota of the Inner Mongolia Autonomous Region, the first chapter of the earthwork description is taken as an example, "the soil moisture content in the quota is considered according to the natural moisture content, such as when the moisture content is greater than 25, the quota is calculated by multiplying the coefficient by manual and mechanical."

The way to reduce the moisture content of the soil is to dry or dry the earthwork, but the construction site is generally dry, which is more economical and convenient to construct!

1.improve drainage conditions; 2.Flipping; 3.The rotation of the tunnel face naturally reduces the moisture content of the soil to the standard range; 4.Mechanical drying.

Firstly, the optimal moisture content and the actual moisture content of the on-site soil are determined, and then the dry soil is stirred or dried according to the actual situation.

Hello it depends on what causes the soil to have too much moisture.

Soil moisture content generally refers to the absolute water content of the soil, that is, 100g of dried soil contains several grams of water, also known as soil moisture content.

Soil moisture content generally refers to the absolute soil moisture content, that is, 100 g of dried soil contains several grams of water, also known as soil moisture content. Soil moisture content is often expressed by weight moisture content and volumetric moisture content, gravimetric moisture content refers to the ratio of the weight of water in the soil to the weight of the corresponding solid substance, and volumetric moisture content refers to the ratio of the volume of water in the soil to the total volume of soil.

Calculation: 1) The soil moisture content is shown by the weight percentage table: the weight of the water contained in the soil is expressed as a percentage of the weight of the dried soil, and the calculation formula is as follows:

Soil moisture content (weight) Original soil weight - drying soil weight) Drying soil weight 100 Water weight Drying soil weight 100.

2) Soil moisture content expressed as a percentage of soil moisture volume: expressed as a percentage of soil moisture volume in a unit of soil volume, and the calculation formula is as follows:

Soil moisture content (volume) Water volume Soil volume 100 Soil moisture content (weight) Soil dry bulk density. Soil bulk density refers to the weight of dry soil per unit volume under natural structural conditions, in g cm3. Dry soil refers to 105 110 dried soil.

When the soil moisture content increases, the soil water potential also increases, and if the soil water potential is the same everywhere, the soil retains this moisture and does not flow.

General water content in soil:

1. Sand: the optimal water content (by weight) is: 8 12;The maximum density (kn m3) is: .

2. Sub-sandy soil: the best water content (by weight) is: 9 15;The maximum compactness (kn m3) is:

3. Silt soil: the best water content (by weight) is: 16 22;The maximum compactness (kn m3) is:

4. Sub-silt: the optimal water content (by weight) is: 12 20;The maximum compactness (kn m3) is:

5. Clay: the best moisture content (by weight) is: 15 25 and above; The maximum compactness (kn m3) is:

Content of soil moisture content:

1. Generally, it refers to the absolute moisture content of the soil, that is, 100g of dried soil contains a number of grams of water, also known as the soil moisture content. The determination of soil water content can grasp the water demand of crops, which has important guiding significance for agricultural production.

2. The main methods include weighing method, tensiometer method, resistance method, neutron method, R-ray method, VSWR method, time domain reflection method, high-frequency oscillation method (FDR) and optical method.

3. The moisture content in the soil is called the soil moisture content, which is expressed by the relative proportion of water in the soil three-phase body (solid framework, water or aqueous solution, air), and is usually expressed by weight moisture content (g) and volume moisture content (v).

4. The soil moisture content is generally in a suitable state (more than 60%) to meet the growth law of crops. Below (60%), (50%) or more, it is insufficient, and below (50%), it is drought, which is not conducive to crop growth.

It should be a conversion between the absolute soil moisture content and the relative soil moisture content, and there is no such thing as soil volumetric moisture content. Absolute moisture content.

The amount of water in the soil is expressed as a percentage by weight.

Soil moisture content is expressed as a percentage of the weight of water contained in the soil to the weight of the dried soil, and the calculation formula is as follows:

Soil moisture content (weight) Original soil weight - drying soil weight) Drying soil weight 100 Water weight Drying soil weight 100.

Relative water content.

Relative soil moisture content.

Soil water content is converted to a percentage of field water holding capacity or total water storage to express the relative content of soil water as follows:

Dryland soil relative moisture content ( ) Soil moisture content Field water holding capacity 100

Relative soil moisture content of paddy field ( ) Soil moisture content Total water storage 100

In the denominator of the moisture content calculation formula, the numerator is the weight of water, the denominator of relative moisture content is the weight of wet soil, and the denominator of absolute moisture content is the weight of dry soil.

The absolute water content can only show how much water is in the soil.

The relative water content can show the content of available water in the soil.

The amount of soil moisture content depends on a number of factors, including:

1.Precipitation: The amount of precipitation directly affects the moisture content of the soil, and as the precipitation increases, the moisture content of the soil will also increase.

2.Permeability: The permeability of the soil affects the moisture content in the soil, and the lower the soil permeability, the more moisture content in the soil.

3.Permeability: The permeability of the soil affects the moisture content in the soil, the lower the soil permeability, the more moisture content in the soil.

4.Temperature: As the temperature increases, the moisture content in the soil decreases, and the higher the temperature, the less moisture content in the soil.

5.Topography: Topography also affects the moisture content in the soil, such as deep valleys in mountainous areas have higher moisture content, while high mountains have lower soil moisture content.

6.Soil properties: Soil properties can also affect the moisture content in lead-deficient soils, such as low moisture content in sandy soils and high moisture content in clay soils.

In addition, the fine content of sediment in the soil will also affect the soil moisture content, and the higher the sand fine content, the lower the soil moisture content.

Meteorological factors (mainly precipitation), soil characteristics (porosity, bulk density, permeability, etc.), vegetation conditions, and human activities may affect the change of soil water content. The moisture in the soil can be absorbed by the roots of the crop only after the applied fertilizers (especially chemical fertilizers) have been dissolved. Among the three ways of nutrient absorption, mass flow and diffusion are the main modes, and these two nutrient absorption methods are closely related to soil moisture content.