Densification controllable casting construction process

Abstract

A controllable compaction grouting construction process belongs to the field of construction engineering. The specific process is as follows: the reinforcement design requirements are provided to the command and control system, the material ratio, the depth of the drilled pipe, the height of the pipe removal, the grouting pressure and the flow rate are determined. Then carry out the command and control of grout mixing, conveying, grouting, drilling, pipe embedding, and extubation; the grouting material feeding system performs the grouting material mixing process; the feeding and conveying system transports the mixed materials to the grouting system; The grouting system carries out the material pressure injection process; the drilling, pipe-burying and pipe-extraction system carries out the pipe-extraction process during the drilling, pipe-burying and grouting process; the reinforcement effect detection system monitors the grouting process and the effect after grouting reinforcement Detection process. The invention has strong pertinence, is applicable to different weak foundation reinforcement, deviation correction and foundation underpinning, is perfected on the basis of the original foundation compaction grouting reinforcement, and solves the deficiency and defect of the original construction technology.

Description

technical field [0001] The invention relates to a foundation grouting construction technology, in particular to a controllable compaction grouting construction technology, which belongs to the field of construction engineering. Background technique [0002] The foundation grouting reinforcement technology has the advantages of small investment scale, simple construction equipment, small construction area, small impact on traffic and environment, and easy control of reinforcement depth. It is widely used in mines and other underground construction fields. Especially in the foundation reinforcement engineering of urban deep underground engineering, the correction of urban housing structure and underground boring machine construction, etc., this process has unique advantages. However, the current grouting equipment, materials and detection methods limit the overall development of this process. With the rise of other foundation reinforcement processes, the foundation grouting r...

AI Technical Summary

Problems solved by technology

However, the current grouting equipment, materials and detection methods limit the overall development of this process. With the rise of other foundation reinforcement processes, the foundation grouting reinforcement process has gradually lost its advantages and status.

Through literature search, it is found that "Civil Engineering Grouting Construction and Effect Detection" edited by Cheng Xiao and Zhang Fengxiang, Tongji University Press, January 1998, page 17, this article mentions the most used double drill pipe filter tube technology and For the two-layer pipe and double plugging process, the more prominent problem is that the grout cannot accurately enter the predetermined reinforcement range according to the design requirements, which makes the reliability and confidence of the grouting questionable

In addition, the limitations of grouting effect detection and measurement technology and the after-the-fact nature are also the main reasons for the stagnant development of grouting reinforcement technology.