Grouting reinforcement involves injecting a solidifying slurry into the cracks or pores of rock and soil foundations. It can fill small gaps in dry rock layers. The method of synthetic resin grouting is suitable for reinforcing engineering foundations, using a tube-type grouting pump to inject synthetic resin. The mud pillar jetting method involves placing a rotating drill rod into the well, with a jetter and grinder at the drill rod's head. A water jet is emitted from the drill rod, cutting and softening the soil layers, while the grinder grinds the soil into particles.
Construction equipment for housing grouting reinforcement primarily includes drills, grouting pumps, mixers, and testing instruments. Drills are used for drilling holes, grouting pumps for injecting slurry into target areas, mixers for preparing the slurry, and testing instruments for monitoring construction quality and results. Modern grouting equipment often features automation, which enhances construction efficiency and accuracy.

Grouting materials are crucial for reinforcing building structures, commonly including cement slurry, chemical grouts, and composite grouts. Cement slurry is cost-effective and high-strength, suitable for general reinforcement needs; chemical grouts (like epoxy resins) have good fluidity, ideal for small cracks; composite grouts combine the benefits of multiple materials, suitable for complex reinforcement scenarios. When selecting grouting materials, consider the reinforcement target, structural characteristics, and construction conditions.

Although grouting reinforcement of buildings has many advantages, it also has certain limitations. For instance, in low-permeability clay layers, the grout may find it difficult to spread, leading to less than ideal reinforcement effects; in addition, grouting construction requires equipment and technical personnel, which can be costly. Improper control of grouting pressure may also cause wall cracking or grout leakage, affecting the structure of the building.

Grouting reinforcement of buildings is a technique that enhances structural stability by injecting slurry into the foundation or walls. Its basic principle is to fill the voids, cracks, or hollows in the foundation or walls with slurry, thereby improving the strength, compactness, and impermeability of the structure. The grouting materials typically include cement slurry, chemical slurry, or composite slurry. During construction, holes are drilled to inject the slurry into the target area, where it spreads and hardens under pressure, ultimately forming a solid reinforcement layer. This method is suitable for addressing issues such as building settlement, cracks, and leaks.