Trenchless technology is widely used in crossing highlway, railway, construction, water area, rumble strip, heritage reserve, crops and vegetation protection and other not allowed or not suitable excavation condition field, such as; water supply, coal gas, natural gas, sewage, electric power, comminication cable and other public utility construction. It has the advantages of no environmental pollution, does not affect the traffic, have little damage to geological stratification structure, safety construction, short cycle, no need for transportation and stacking of mixed soil, low cost, obvious social benefit.
Trenchless technology is a revolution to traditional underground utilities, excavation pavement, replace and repairing, from officially entered the construction market to now, in the short period times, and its unique technology and features is brought to the attention of the people, obtain the good socity and economic benefit.
Following the trenchless technology development, the solid control is widely used in trenchless industry. In addressing the economics of drilling fluids, trenchless operators must clearly understand the basic operating principals behind the available recycling processes. The following provides for a practical understanding of the key principles behind solids control and drilling fluid management. With that said, the following discussion should not be considered exhaustive. Ultimately, the manufacturer of the drilling fluid and the solid control and waste management equipment should be consulted.
When deploying a “solids control system,” there are several key hydraulic design factors that must be considered. These factors simply provide a “hydraulically balanced” solids control system, however, buyers of solids control systems should not overlook the durability, dependability and return on investment that the features and benefits bring.