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Coral reef stratum hole filling grouting material and use method thereof

A hole filling and grouting technology, applied in the field of geotechnical engineering, can solve the problems of insufficient strength, easy collapse, different hole sizes, etc., achieve high strength and early strength, good water resistance and dispersion performance, and improve water resistance and dispersion. Effect

Inactive Publication Date: 2019-03-19
CCCC WUHAN HARBOR ENG DESIGN & RES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current filling materials mainly have the following problems: 1) due to the different sizes of the holes, the surface of the coral reef is rough and difficult to fill; 2) the early strength is not enough, it is easy to collapse, and the drilling speed is slow

Method used

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  • Coral reef stratum hole filling grouting material and use method thereof
  • Coral reef stratum hole filling grouting material and use method thereof
  • Coral reef stratum hole filling grouting material and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of grouting material for filling holes in coral reef strata provided in this embodiment and its application method are as follows:

[0025] 1) Preparation of grouting material: 70% cement, 10% limestone powder, 10% zeolite powder, 0.7% fumed silica, 8.5% expansion agent, 0.54% powder polycarboxylate superplasticizer, cellulose Ether 0.2%, silicone defoamer 0.02%, sodium glucose 0.04%, use a homogenizer to homogenize for 5 minutes.

[0026] 2) Preparation of grouting material slurry: add water with 27% of the grouting material mass according to the mass ratio, use a high-speed mixer with a rotation speed greater than 1000 rpm to stir and make slurry, and stir for 6 minutes to obtain a special slurry.

[0027] 3) The hole filling method of coral reef formation based on the above grouting materials: the reverse circulation rotary drilling method is used to form holes in the pile forming process, the mud wall is used in the hole forming process, and the mud regulator...

Embodiment 2

[0031] A kind of grouting material for filling holes in coral reef strata provided in this embodiment and its application method are as follows:

[0032] 1) Preparation of grouting material: according to the mass percentage of each component, cement 60%, limestone powder 23%, zeolite powder 8%, fumed silica 0.5%, expansion agent 7.3%, powder polycarboxylate superplasticizer 0.81%, xanthan Glue 0.31%, silicone defoamer 0.03%, sodium glucose 0.05%, use a homogenizer to homogenize for 5 minutes.

[0033] 2) Preparation of grouting material slurry: add water with 27% of the grouting material mass according to the mass ratio, use a high-speed mixer with a rotation speed greater than 1000 rpm to stir and make slurry, and stir for 6 minutes to obtain a special slurry.

[0034] 3) The hole filling method of coral reef formation based on the above grouting materials: the reverse circulation rotary drilling method is used to form holes in the pile forming process, the mud wall is used i...

Embodiment 3

[0038] A kind of grouting material for filling holes in coral reef strata provided in this embodiment and its application method are as follows:

[0039]1) Preparation of grouting material: according to the mass percentage of each component, cement 65%, limestone powder 15%, zeolite powder 9%, fumed silica 0.85%, expansion agent 9%, powder polycarboxylate superplasticizer 0.85%, cellulose 0.23% ether, 0.02% silicone defoamer, 0.05% sodium glucose, and homogenize for 5 minutes with a homogenizer.

[0040] 2) Preparation of grouting material slurry: add water with 27% of the grouting material mass according to the mass ratio, use a high-speed mixer with a rotation speed greater than 1000 rpm to stir and make slurry, and stir for 6 minutes to obtain a special slurry.

[0041] 3) The hole filling method of coral reef formation based on the above grouting materials: the reverse circulation rotary drilling method is used to form holes in the pile forming process, the mud wall is use...

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Abstract

The invention discloses a coral reef stratum hole filling grouting material and a use method thereof. The grouting material comprises, in weight percent, 50-80% of cement, 10-40% of limestone powder,5-10% of zeolite powder, 0.5-1% of fumed silica, 5-10% of expanding agents, 0.5-1.5% of water reducing agents, 0.1-0.5% of underwater non-segregating agents, 0.02-0.04% of defoaming agents and 0.02-0.06% of retarders. The grouting material is high in flow speed, high in strength and early strength, free from contraction, good in water-resistant dispersing performance, poisonless and harmless, doesnot age and cannot pollute water and surrounding environments. The grouting material solves the technical problems that existing fillers are insufficient in early strength, easy to collapse, low in drilling rate and high in filling difficulty, and filling efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a grouting material for filling holes in coral reef formations and a method for using the same. Background technique [0002] The main component of the coral reef strata is reef limestone (for example, the Maldives Islands belong to the landform of the atoll chain in the Indian Ocean, which consists of multiple atolls developed in strings or circles). The diagenesis of coral reef limestone is complex. It can be seen that there are many potholes on the wall of the hole. After the pits are formed, grooves and shore erosion cavities are easy to form in the later stage due to wave erosion. Coral reef limestone is susceptible to biological erosion during the formation process. Under the comprehensive dissolution of erosion, reef limestone pores are easy to form. The reef limestone has developed intergranular pores and pores, and the surface of the core is rough. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/70
CPCC04B28/04C04B2111/00663C04B2111/70C04B2201/05C04B2201/52C04B14/28C04B14/047C04B14/066C04B24/42C04B22/142C04B2103/302C04B24/383C04B24/10C04B24/38
Inventor 李顺凯明阳吴克雄沈尔卜高玉军甘国兴屠柳青
Owner CCCC WUHAN HARBOR ENG DESIGN & RES
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