Double Pipe Strainer Method for the stability of shafts and shields, and protection of soil retention deficiencies.
Forming a homogeneous improved ground by injecting quick-setting grout using a double pipe and a special tip device. Construction is environmentally friendly with minimal industrial waste disposal.
This construction method is based on performing primary injection using a double-tube injection rod at each step to inject a quick-setting gel time while preventing diffusion beyond the specified area, followed by secondary injection to inject a slow-setting gel time to achieve uniform penetration into the voids between soil particles, thereby forming a homogeneous improved ground. 【Applications】 ● Stabilization of the bottom slab and backfill of the shaft (waterproofing and increased strength) ● Protection of soil retention deficiencies ● Stabilization of the face of shield tunneling or thrusting ● Prevention of loosening in the route section of shield tunneling or thrusting ● Stabilization of the backfill and bottom slab of deep foundations (waterproofing and increased strength) 【Features】 ● It hardens to a moderate firmness, so it does not interfere with excavation. ● The machinery is compact, allowing for construction in narrow areas. ● It can be applied freely in any direction, 360 degrees. ● There is minimal industrial waste, enabling environmentally friendly construction. ● It can be applied to all types of ground (especially effective for sandy soils). ● It generates little vibration and noise.
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【Purpose】 ● Stability of the bottom and back parts of the shaft (waterproofing and strength increase) ● Protection of the soil retention missing parts ● Stability of the face section of the shield and thrusting ● Prevention of loosening in the route section of the shield and thrusting ● Stability of the back and bottom parts of the deep foundation (waterproofing and strength increase)
Company information
Since its establishment, our company has played a role in national construction, primarily focusing on the "ground improvement field" with our unique grouting method. Subsequently, in response to the changes in social infrastructure development, we have refined our technologies to adapt to the needs of the times and, at times, acquired new ones to expand our business scope. As a result, we have now established three main pillars: "ground improvement business," "slope disaster prevention business," and "pipeline business."
