Mud and water separation in subway tunnel construction

• Jun 14, 2022
• Mud pressure balanced shield is in the front of the mechanical shield set partition, and formed between the knife dish mud tank, principle of excavation face stability is mud into the mud hold, with mud on the surface of the excavation form...

1. Construction of mudwater balance shield

Mud pressure balanced shield is in the front of the mechanical shield set partition, and formed between the knife dish mud tank, principle of excavation face stability is mud into the mud hold, with mud on the surface of the excavation form impervious clay film, by maintaining a water pressure, the tension of the mud membrane led to balance acting on the excavation face pressure and water pressure.The excavated taxi sand is transported to the ground in the form of mud, which is separated by KD series mud water treatment system of KOSUN environmental protection black rhino brand. After separation, the mud water quality is adjusted, and then transported to the excavation surface.
 

 

2. Horizontal directional drilling construction

Horizontal Directional Drilling, also known as HDD (Horizontal Directional Drilling), is a new technology developed in recent years.drill mud recycling technology is mainly used to cross obstacles such as roads, rivers and buildings. Compared with the traditional large-excavation buried pipe construction method, it has the advantages of fast construction speed, high precision and low cost. It is widely used in pipeline laying projects of water supply, gas, electricity, telecommunications, natural gas and oil.KD series mud water treatment system of KOSUN environmental protection black rhino brand is mainly used for mud water separation and HDD Mud Recycling System in drilling fluid disposal construction, which effectively reduces environmental pollution and costs during construction.

 

 

3. Construction of underground diaphragm wall

Underground continuous wall construction is the foundation engineering on the ground using a chamfered machinery (hydraulic digging bucket, rotary digging drilling, milling, etc.), along the deep excavation engineering around the axis, under the condition of slurry wall protection, excavation of a long and narrow deep groove, after the qing tank, sling the reinforcing cage in the tank, and then placing underwater concrete by catheter method a unit slot, so piecewise, against a continuous reinforced concrete walls in the ground, and as the cutoff, seepage control, load bearing, water retaining structure.In city construction, the disposal of waste mud is more troublesome.KD series mud water treatment system of KOSUN environmental protection black rhino brand can effectively separate (slurry seperation) and dehydrate the mud, and solve the inconvenience brought by the mud to the construction.