Multifunctional heat preservation formwork for high-water-head concrete dam in high-cold region

• Main Authors: DING CHENCHEN, LI HAITAO, XU HUA, XIA SHIFA, PEI CHENGYUAN, ZHANG XIUSONG, WEI FEI, LI TONGLAO, ZHANG AFENG, DUAN YUDONG, DING ZHAOXIANG, SHI QUAN, KONG XIANGZHI
• Format: Patent
• Language: Chinese; English
• Published: 12.03.2024
• Subjects: BUILDING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE; EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FORMS; FOUNDATIONS; HANDLING BUILDING MATERIALS ON THE SITE; HYDRAULIC ENGINEERING; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS; SCAFFOLDING; SHUTTERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The invention belongs to the technical field of heat preservation of concrete dams in high-cold regions, and particularly relates to a multifunctional heat preservation formwork for a high-water-head concrete dam in a high-cold region, which comprises a polyurethane heat preservation layer, a concrete structure layer and a formwork main body of an ice-pulling-resistant coating which are sequentially arranged from inside to outside, pre-buried stainless steel parts are arranged at the edge seams of the inner side and the outer side of the formwork body, bolt holes and anchor pulling steel bars are arranged on the concrete structure layer, an anti-seepage structure is arranged at the edge seams of the formwork body, and the anti-seepage structure comprises at least two water stop strips arranged along the edge seams of the formwork body. A grouting pipe and a concave-convex water blocking structure are arranged between every two adjacent water stopping strips, each concave-convex water blocking structure compri