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Modified thixotropic slurry and preparation method thereof

A technology of thixotropic mud and preparation method, which is applied in the field of thixotropic mud and can solve the problems such as the inability to effectively combine the surrounding soil and the inability to form

Active Publication Date: 2015-08-19
金中天水利建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mud can change the geological structure and ensure the horizontal directional drilling of large-diameter and long-distance pipelines under loose geological conditions. However, the mud cannot form a high-quality mud skin to support the soil, nor can it solidify by itself and be effective with the surrounding soil. combined, so it is impossible to avoid soil collapse and road surface subsidence

Method used

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  • Modified thixotropic slurry and preparation method thereof
  • Modified thixotropic slurry and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0085] A modified thixotropic mud comprising the following components in parts by mass:

[0086] Sodium bentonite with a colloidal value of 90-100 100

[0087] water 1100

[0088] Sodium carbonate 8

[0089] Lime paste 100

[0090] Polyacrylamide 0.8

[0091] Ferric silicate sulfate 0.8

[0092] Aluminum chloride 0.4

[0093] Glucose 2

[0094] Sodium rosinate 0.4.

[0095] According to the proportion of the above-mentioned modified thixotropic mud, it is prepared as follows:

[0096] (1) Add 1056 parts of water into the mixing tank;

[0097] (2) Slowly add bentonite into the mixing tank and stir evenly;

[0098] (3) Dissolve sodium carbonate with 40 parts of water to obtain sodium carbonate solution, then add sodium carbonate solution into the mixing tank, stir evenly, then add flocculant and stir evenly to obtain ordinary thixotropic mud;

[0099] (4) Dissolve the retarder with 4 parts of water, and stir well to obtain the retarder solution;

[0100] (5) Add the r...

Embodiment 2

[0103] A modified thixotropic mud comprising the following components in parts by mass:

[0104] Sodium bentonite with a colloidal price of 80-90 100

[0105] water 980

[0106] Sodium carbonate 9.5

[0107] Lime paste 90

[0108] Polyacrylamide 0.6

[0109] Ferric silicate sulfate 0.6

[0110] Aluminum chloride 0.3

[0111] Glucose 1.6

[0112] Sodium rosinate 0.3.

[0113] According to the proportion of the above-mentioned modified thixotropic mud, it is prepared as follows:

[0114] (1) Add 953 parts of water into the mixing tank;

[0115] (2) Slowly add bentonite into the mixing tank and stir evenly;

[0116] (3) Dissolve sodium carbonate with 19 parts of water to obtain a sodium carbonate solution, then add the sodium carbonate solution into the mixing tank, stir evenly, then add flocculant and stir evenly to obtain ordinary thixotropic mud;

[0117] (4) Dissolve the retarder with 8 parts of water, and stir well to obtain the retarder solution;

[0118] (5) Add t...

Embodiment 3

[0121] A modified thixotropic mud comprising the following components in parts by mass:

[0122] Sodium bentonite with a colloidal price of 70-80 100

[0123] water 920

[0124] Sodium carbonate 12.5

[0125] Lime paste 75

[0126] Polyacrylamide 0.4

[0127] Ferric silicate sulfate 0.4

[0128] Aluminum chloride 0.2

[0129] Glucose 1.0

[0130] Sodium rosinate 0.25.

[0131] According to the proportion of the above-mentioned modified thixotropic mud, it is prepared as follows:

[0132] (1) Add 862 parts of water into the mixing tank;

[0133] (2) Slowly add bentonite into the mixing tank and stir evenly;

[0134] (3) Dissolve sodium carbonate with 50 parts of water to obtain sodium carbonate solution, then add sodium carbonate solution into the mixing tank, stir evenly, then add flocculant and stir evenly to obtain ordinary thixotropic mud;

[0135] (4) Dissolve the retarder with 8 parts of water, and stir well to obtain the retarder solution;

[0136] (5) Add the...

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Abstract

The invention provides a modified thixotropic slurry. The slurry comprises components of, by mass, 100 bentonite, 80 to 110 water, 8 to 15 sodium carbonate, 60 to 100 white plaster, 0.5 to 2 parts of flocculant and 0.2 to 0.4 of emulgator. The invention further provides a preparation method of the modified thixotropic slurry. The modified thixotropic slurry is provided with resistance reduction thixotropy and solidification properties and good consistence and can form outstanding slurry sleeves to produce certain support, and accordingly, the safety and the reliability of the soil mass on the upper portion during jacking of jacking pipes can be guaranteed, and soil mass collapse and road surface sinking are prevented.

Description

technical field [0001] The invention relates to a thixotropic mud, in particular to a modified thixotropic mud and a preparation method thereof. Background technique [0002] Slurry-water balance pipe jacking construction is one of the important methods in trenchless construction technology. It is a traditional construction technology. Due to its uniqueness, it still plays a huge role in various engineering fields. The non-excavation construction of mud-water balance pipe jacking is widely used in urban construction projects. With the development of urban construction, especially the acceleration of old city reconstruction and sewage treatment upgrading, the quality of pipe jacking construction directly affects the surface and ground structures. of stability. In the mud-water balance pipe jacking construction, due to the different geological conditions of the ground, some pipe jacking sections need to backfill the gaps and loose layers of the pipe wall with grouting. The fu...

Claims

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Application Information

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IPC IPC(8): C04B28/10
Inventor 郑育东王会清刘荣保李坚明林润标
Owner 金中天水利建设有限公司
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