Leakage repair of * * * * hydropower station in Ningde, Fujian, Construction of seepage treatment for power house of hydropower station 【***：
Comprehensive treatment of water leakage
First, carefully search and treat the holes, looseness and other major defects at the leakage place. This step is the closing of the whole plugging key We must do it carefully and painstakingly. Only on this basis can the second step of plugging treatment be carried out. The plugging effect is closely related to the materials. The materials provide the basic conditions and play a guarantee role for the plugging technology. The superior performance and high-grade materials must be reflected in the use technology. No matter what materials, they must match and adapt to the plugging technology operation. Therefore, the materials selected for waterproofing and plugging in this project are: specially prepared and produced fast setting and expanding plugging * * * materials for plugging and repairing;
Company construction principle
Overview of grouting method
a. Grouting is a new type of chemical grouting plugging technology, which uses double liquid grouting. The three kinds of raw materials weighed in proportion are added with water and stirred to make liquid A, and the sulfur fixation weighed in proportion is added with water and stirred to make liquid B. When the two kinds of liquids are mixed, polymerization reaction occurs, thirty Second initial setting, 2-3 The reaction is completed within minutes, and the final gel is formed. Water soluble grouting is used to inject into the structural layer. The slurry has low viscosity, good permeability and can be injected 0.1mm Cracks below; The slurry can be coagulated under the conditions of moisture, high water speed and large amount of water; The gel also has good impermeability, water swelling, corrosion resistance and other characteristics, and its compressive strength 0.01-0.06MPa, The tensile strength is 0.02-0.04MPa 。
b. The grouting method is mainly used for water leakage * * *, water flow dispersion, which is not conducive to sealing cracks and individual water outlet points and surfaces. Determine the plugging position according to the crack condition. Carry out internal grouting to seal the water channel and cracks, or make the water flow relatively concentrated, so as to facilitate plugging. Water leakage is greater than 150mL/min Water diversion grouting method is adopted to block water at the centralized water outlet point of. At the outlet first drill hole , drilling * * * to not penetrate the structural layer, not less than 20cm This can not only avoid the super diffusion of grout during grouting, but also dredge the surrounding water outlet Packing Staggered tiny cracks play the role of pressure relief. Then clean the crushed stone floating debris in the hole, and use quick gel mud to 25mm Plastic Hose Buried in the diversion hole, and then mortar Trim the mouth.
Service process of Sanli Port plugging company: one Go to the site to investigate the leakage, prepare the construction scheme and construction budget quotation.
two After signing the construction contract, the construction shall be carried out carefully and the construction task shall be completed with quality and quantity guaranteed.
***Leak stoppage construction team , Unique underwater technology , ***Construction services of , Reasonable project cost ” It provides you with a series of leak stoppage projects for basement, tunnel, pipeline, elevator shaft, pool, etc., such as waterproof and underwater structure engineering construction.
{---- Dear users, no matter what your needs, as long as you call our twenty-four Hours * * *: [Mr. Wang == Leak stoppage company, * * * door-to-door] You only need one phone call, and we will do the rest ---
