Recently, many friends have consulted the relevant content of the introduction of building foundation backfill sinking grouting, and the following is a summary of relevant knowledge points, I hope it will help you.
Grouting reinforcement is a method of injecting grouting materials into the voids in the concrete structure by high-pressure grouting to improve the strength and stability of the concrete structure.
Building foundation backfill subsidence grouting is an application method of grouting reinforcement, the purpose of which is to solve the problem of foundation instability or settlement caused by building foundation backfill subsidence. In construction engineering, the foundation backfill is used to fill the foundation pit or excavated soil, but due to various factors, such as the instability of the soil itself, the change of groundwater level, excavation and dumping of the fill during construction, etc., it may lead to the sinking of the backfill, which has a negative impact on the stability of the building structure.
This problem can be effectively solved by sinking grouting reinforcement of foundation backfill. The steps to operate this method typically include the following steps:
1. Through a comprehensive inspection and evaluation of the foundation, determine the scope and degree of foundation backfill subsidence, as well as possible causes. According to the actual situation, the grouting reinforcement plan is formulated.
2.During the construction process, it is necessary to drill a hole underneath the concrete structure and inject a high-pressure grouting material at the borehole location. The grouting material is usually cement slurry, polyurethane foam or polysulfide slurry, etc., and the specific choice is based on the actual situation. The pressure of the grouting is usually adjusted as needed to ensure that the grouting material can adequately fill the voids.
3.After the grouting material enters the void of the concrete structure, the soil and grouting material in the void form a solid structure through penetration and solidification. This increases the strength and stability of the foundation and prevents further settlement.
It should be noted that when carrying out the subsidence grouting reinforcement of the foundation backfill, it is necessary to consider the properties of the soil, the change of the groundwater level, the characteristics of the grouting material and other factors. Grouting reinforcement should be carried out by experienced engineers or professional construction teams to ensure the quality and effect of construction.
Grouting reinforcement is an effective method of foundation reinforcement, which solves the problem of foundation backfill subsidence and improves the stability and safety of building structures by injecting high-pressure grouting materials into the voids in concrete structures. In actual operation, it is necessary to formulate a suitable reinforcement plan according to the specific situation and carry out professional construction to ensure the effect.