11 projects of the company were awarded the science and technology progress award of Hebei Construction Industry in 2020.
1 First Prize:
Study on using inferior desulfurized gypsum and fly ash as filling materials.
3 Second Prize:
Construction method of ultra-deep high-pressure jet grouting pile in gravel soil;
Study on the strength variation characteristics of concrete in bored piles;
Construction method of rotary drilling secant pile.
7 Third Prize:
Construction method of gravel grouting steel pipe pile (GGP);
Construction method of vacuum pre-pressure for sand-free cushion with superficial-part gas disturbance method;
Construction method of multi specification combined vibro-sinking sand- gravel piles for treatment of terminal yard with hydraulic fill sand soil foundation;
Stress test method of single pile horizontal load test；
Installation and construction method of isolation cushion for liquefied natural gas (LNG) low temperature storage tank；
Construction method of deep-well vertical earth electrode；
Construction method of full casing rotary drilling in complex stratum.
