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A kind of coarse and fine-grain mixed soil and preparation method thereof

A mixed soil, thick and fine technology, applied in the field of civil engineering, can solve the problems of mixed soil not easy to form, poor cementation, easy to disperse, etc., to achieve the effect of solving difficult to obtain, high density, and simple raw materials

Active Publication Date: 2020-08-11
STATE GRID XINJIANG ELECTRIC POWER CO ECONOMIC TECH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the mixed soil prepared by the existing method has problems such as not easy to shape, easy to disperse, and poor cementation.

Method used

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  • A kind of coarse and fine-grain mixed soil and preparation method thereof
  • A kind of coarse and fine-grain mixed soil and preparation method thereof
  • A kind of coarse and fine-grain mixed soil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Raw material preparation:

[0058] Gravel with a particle size of 10-20mm: 3872g;

[0059] Gravel with a particle size of 5-10mm: 2790g;

[0060] Gravel with a particle size of 0.5-5mm: 1004g;

[0061] Gravel with a particle size of 0.1-0.5mm: 1000g;

[0062]Powder clay with a particle size of 0.075-0.1mm: 374g;

[0063] Powder clay with particle size less than 0.075mm: 960g.

[0064] Calcium Oxide: 500g.

[0065] The specific operation steps are as follows:

[0066] (1) Calculate the quality of the soil material required for the sample according to the relative density of 0.8, and weigh the raw material according to the raw material preparation to obtain the following: figure 1 Soil materials of different particle sizes and such as figure 2 For the cementitious material calcium oxide shown, mix gravel, powder clay and calcium oxide evenly to obtain image 3 Material 1 shown;

[0067] (2) Add 1.26kg of water to material 1 and stir, add water for the first tim...

Embodiment 2

[0072] Raw material preparation:

[0073] Gravel with a particle size of 10-20mm: 3400g;

[0074] Gravel with a particle size of 5-10mm: 2600g;

[0075] Gravel with a particle size of 0.5-5mm: 900g;

[0076] Gravel with a particle size of 0.1-0.5mm: 900g;

[0077] Powder clay with a particle size of 0.075-0.1mm: 400g;

[0078] Powder clay with particle size less than 0.075mm: 800g.

[0079] Calcium Oxide: 400g.

[0080] The specific operation steps are as follows:

[0081] (1) Prepare and weigh raw materials according to raw material preparation, mix gravel, powder clay and calcium oxide evenly, obtain material 1;

[0082] (2) Add 1128g of water to material 1 and stir, add water according to the moisture content of material 1 at 12% for the first time, add water to material 1 and stir evenly, after the material is cooled, add water for the second time to ensure the moisture content of material 10%, get material 2;

[0083] (3) Load the material into the sample preparat...

Embodiment 3

[0087] Raw material preparation:

[0088] Gravel with a particle size of 10-20mm: 3800g;

[0089] Gravel with a particle size of 5-10mm: 2500g;

[0090] Gravel with a particle size of 0.5-5mm: 1100g;

[0091] Gravel with a particle size of 0.1-0.5mm: 1100g;

[0092] Powder clay with a particle size of 0.075-0.1mm: 500g;

[0093] Powder clay with particle size less than 0.075mm: 1000g.

[0094] Calcium Oxide: 600g.

[0095] The specific operation steps are as follows:

[0096] (1) Prepare and weigh raw materials according to raw material preparation, mix gravel, powder clay and calcium oxide evenly, obtain material 1;

[0097] (2) Add 1272g of water to material 1 and stir. Add water according to the moisture content of material 1 at 12% for the first time, add water to material 1 and stir evenly. 14%, get material 2;

[0098] (3) Load the material into the sample preparation cylinder in 2 minutes and 5 times. The diameter of the sample preparation cylinder is 100mm and ...

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Abstract

The invention relates to coarse-fine-particle mixed soil and a preparation method thereof, and belongs to the technical field of civil construction. The coarse-fine-particale mixed soil is prepared from the following raw materials: 77-95 parts by weight of sand gravel with a particle diameter of 0.1-20mm, 11-16 parts by weight of powder clay with a particle diameter of less than 0.1 mm, and 4-6 parts by weight of a gel material. The invention also discloses the preparation method of the coarse-fine-particle mixed soil. According to the coarse-fine-particle mixed soil and a preparation method thereof, the preparation method is simple in process, easy in operation and loose in condition limitation. The coarse-fine-particle mixed soil is prepared from the sand gravel and the powder clay; theraw materials are easily obtained and are abundant in supply; and the prepared mixed soil has high compactness, is easily molded, and has better cementation performance among particles, so that the problem that in-situ soil sample of a deep covering layer is not easy to obtain can be well solved.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a coarse-fine mixed soil and a preparation method thereof. Background technique [0002] With the advancement of hydropower energy development, the available dam sites with good geological conditions are gradually decreasing. In recent years, the large rivers where many hydropower engineering bases are located are facing the problem of building dams on deep overburden layers. From the perspective of particle composition, the particle composition of the underlying soil of deep overburden layers is divided into coarse-fine particle grades Mixed soil with uneven distribution, coarse-grained soil is mainly composed of gravel, fine-grained soil is mainly composed of silt and clay, and its intergranular cementation and consolidation degree is high. In the process of studying the mechanical properties of mixed soil, it is necessary to obtain in-situ soil samples. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/10
CPCC04B28/10C04B14/02C04B14/10
Inventor 喻豪俊廖孟柯付林胡常胜杨世江刘恩龙董力通
Owner STATE GRID XINJIANG ELECTRIC POWER CO ECONOMIC TECH RES INST
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