High-pressure grouting device for cement mixing pile construction

Abstract

The invention relates to a high-pressure grouting device for cement mixing pile construction. The high-pressure grouting device comprises a material mixing part, a temporary storage pool, an air compressor and a grouting part, and the material mixing part, the temporary storage pool and the air compressor sequentially communicate with one another through a pipeline; and the grouting part comprises a grouting base, a support, a guide frame connecting guide plate, a power head, a booster pump, a steel rope, a driving motor, a grouting column high-pressure conveying pipe and a grouting head. Cement soil is mixed by the material mixing part, then input into the temporary storage pool, kept active and further mixed, then conveyed to the booster pump by the air compressor, injected into a grouting column after being pressurized, and finally injected by the grouting head. The grouting efficiency is high, the cement soil is subjected to jet grouting through the special grouting head, so that the cement soil cannot flow back into the grouting column to cause blockage, the grouting head is rotated during grouting, a pile foundation is uniformly poured, and the quality of the pile foundation is improved.

Description

technical field [0001] The invention relates to a high-pressure grouting device for cement-soil mixing pile construction, and belongs to the technical field of cement-soil pouring. Background technique [0002] Cement-soil mixing pile is a method for reinforcing saturated soft clay foundations. It uses cement as a curing agent, and through a special mixing machine, the soft soil and curing agent are forced to mix deep in the foundation. A series of physical and chemical reactions produced during the process will harden the soft soil into a high-quality foundation with integrity, water stability and certain strength. The reinforcement depth usually exceeds 5m, and the depth of dry reinforcement should not exceed 15m, and the depth of wet reinforcement should not exceed 20m, the cement soil pressed into the soft soil and the surrounding soft soil are forced to mix with the rotating mixing blade to form a mud-reinforced solid. The basic principle of cement-reinforced soil is ba...

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Problems solved by technology

[0003] With the advancement of society, the equipment used in the construction industry is also constantly improving. Before building construction, it is usually necessary to carry out foundation construction. Among them, cement-soil mixing piles are a common way to strengthen foundations, but at present, cement-soil mixing piles During the construction of the pile, the quality of the pile foundation is often poor due to the low grouting efficiency, which has a great impact on the subsequent construction, and during the construction, soil will enter the equipment, resulting in blockage during grouting, which is not conducive to The progress of the project affects the efficiency, so a high-pressure grouting device for cement-soil mixing pile construction is proposed

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