Han Kun professional foundation reinforcement reinforcement of ground subsidence corporate reform and opening up, the rapid development of the construction industry, construction quality has increased annually, but the project quality accident also have occurred, causing many undue loss. This is due to the different areas of engineering geological conditions, soil distribution, soil physical and mechanical properties are different, even the same building site, the soil is often not uniform, carrying out engineering survey, design and construction, if the conditions to grasp the foundation incomplete, handled properly, it could lead to accidents, which will give the country and the people undue loss. Therefore, an accurate analysis of the accident, reasonably deal with the accident, is the current construction industry solved a big problem. Currently the building has been built on the reinforcement There are many ways, but the most common are the following types: for grouting is a weak foundation, foundation grotto defects, foundation settlement, correct skewed base buildings and structures reinforcement technology. There are some defects caused ground under the foundations of uniform settlement, on the structure of the upper structure poses a serious safety hazard. In order to prevent uneven settlement of the foundation to continue, through the specialized machinery and equipment into the hole and a certain consistency of cement slurry re-injected into the natural foundation for reinforcement. The essence of the foundation grouting through certain pressure curable inject chemical grout or cement grout foundation soil cracks or pores in order to improve the physical and mechanical properties of the foundation. Hydrostatic pressure irrigation is divided into two major categories of irrigation and high pressure irrigation. The former on the foundation soil disturbance is small, suitable for strengthening the foundations of houses have been built; effective radius of the latter is relatively large, suitable for substantially improve the bearing capacity and the need for anti-leakage with higher requirements for foundations or foundation reinforcement. Pressurized irrigation is generally perpendicular to the foundation drilling, filling in the holes slurry. In the vicinity of grouting holes within a radius of some influence, curing slurry and soil particles solidified into a cylindrical concretion body. The consolidation of the cylinder compressive strength and resistance to compression capacity than not grouted soil, densely arranged in a cylinder forming a pile group consolidation effects, improve the bearing capacity. Scope: 1. Uneven settlement building, building materials, foundation grouting and corrective treatment; 2. Uneven roadbed settlement three metro tunnel grouting service hotline: 4007799656