长圳按摩上门服务-长圳按摩上门服务

保定附近有没有服务

Hello, welcome to visit the official website of Jiangsu Xinda high altitude Engineering Co., Ltd! Our company professional undertaking, pool plugging, tunnel plugging, subway plugging, dock plugging, culvert plugging, elevator shaft plugging, cable trench plugging and other projects! Tel: 0515-88436166.
Industry news

What is the technology of tunnel plugging grouting? How to use it?

1554 hits Release: September 3, 2018 source: Plugging company_ Leak stoppage basement_ Pool plugging - Xinda waterproof and plugging Engineering Co., Ltd

Now the tunnel leakage situation is different, in view of the tunnel leakage stoppage method diversification, specifically introduces a kind of Grouting method Tunnel plugging grouting method is a new chemical grouting technology, which adopts double liquid grouting. Six kinds of raw materials weighed according to the proportion are mixed with water to make liquid a, and the sulfur fixed in proportion is stirred with water to make liquid B. when the two kinds of liquid are mixed, the polymerization reaction will take place. The initial setting time is 30 seconds, the reaction is finished in 2-3 minutes, and finally the colloid is formed. The grouting adopts the water-soluble form to inject into the structural layer. The slurry has low viscosity and good permeability, and can be injected into cracks below 0.1 mm; the slurry can agglomerate under the conditions of moisture, high water speed and large amount of water; the gel also has the characteristics of good impermeability, water swelling and corrosion resistance, with the compressive strength of 0.01-0.06 MPa and the tensile strength of 0.02-0.04 MPa. It can be used in winter below - 40 ℃ without shrinkage, and it can not melt when the temperature reaches 1200 ℃.  



The grouting method is mainly used in the parts where the water leakage is large, the water flow is dispersed, and the common materials cannot reach or detect. The plugging position is determined according to the fracture condition. Grouting is carried out inside the concrete to close the water flow channel and cracks, or to make the water flow relatively concentrated to facilitate plugging. When the water leakage is more than 150ml / min, the water diversion grouting method is used to block the water. Firstly, drill holes on the water outlet point, and the drilling depth should not be less than 20cm without penetrating the structural layer. In this way, the phenomenon of slurry super diffusion can be avoided during grouting, and the intricate micro cracks around the water outlet point can be dredged to play the role of pressure relief. Then the gravel and floating debris in the hole are cleaned up, and the plastic hose with an outer diameter of 25 mm is embedded in the water diversion hole with quick gel mud, and then the mouth is trimmed with special plugging mortar (using Shanghai Shuangyang polymer nano material). Jiangsu Xinda




Back to the top