A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bridge span reduction method and special-purposed bridge span reduction backfill material
The invention provides a bridge span reduction method and a special-purposed bridge span reduction backfill material. The material comprises the following components, by weight, 150-400 parts of cement, 20-120 parts of a mixed material, 50-200 parts of water, 15-50 parts of a regulator, 5-15 parts of a foaming agent, 2-10 parts of a micro-foaming agent, and 5-10 parts of a waterproofing agent. The lightweight foam soil provided by the invention is lightweight and has high strength. The material has a good overall performance. With the material, a soft soil area soil bearing capacity can be satisfied, and the bearing capacity of a backfilled foundation to the upper load can be satisfied. The load of a special subgrade is reduced, and subgrade settlement is reduced.
Bridge span reduction method and special-purposed bridge span reduction backfill material
The invention provides a bridge span reduction method and a special-purposed bridge span reduction backfill material. The material comprises the following components, by weight, 150-400 parts of cement, 20-120 parts of a mixed material, 50-200 parts of water, 15-50 parts of a regulator, 5-15 parts of a foaming agent, 2-10 parts of a micro-foaming agent, and 5-10 parts of a waterproofing agent. The lightweight foam soil provided by the invention is lightweight and has high strength. The material has a good overall performance. With the material, a soft soil area soil bearing capacity can be satisfied, and the bearing capacity of a backfilled foundation to the upper load can be satisfied. The load of a special subgrade is reduced, and subgrade settlement is reduced.
Bridge span reduction method and special-purposed bridge span reduction backfill material
ZHANG JIANHUA (author) / WU BOCHENG (author) / HUA ZHENGUI (author) / SONG HAOGANG (author) / LYU WENPIAO (author) / CHU FENGCHEN (author) / SUN GENSHENG (author) / ZHANG LEI (author)
2015-11-04
Patent
Electronic Resource
English
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