A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anchored high bearing platform grouped pile foundation building method for high-steep deformation slope area bridge
The invention discloses an anchored high bearing platform grouped pile foundation building method for a high-steep deformation slope area bridge. The method includes the steps: determining the number of grouped piles, the diameter of each pile and the elevations of each pile top and the bottom of a bearing platform; determining the length of each pile; determining the number of anchor ropes; determining the number of steel strand bundles of each anchor rope and the diameter of an anchor hole; determining a pitching angle of each anchor rope; forming a 2-degree included angle between an edge column anchor rope and a center line of the bearing platform along the inclined direction of a slop on a horizontal plane; finishing construction of all foundation piles of the bearing platform; overlapping the bearing platform, a connection reinforced concrete supports of the bearing platform, anchors and the piles and a bottom die, and erecting a side die; drilling in a slope rock; making the anchor ropes; applying initial pre-stress for the anchor ropes; locking anchor heads; casting concrete for sealing the anchors; continuing to perform construction for bridge pier columns and an upper structure of a bridge body until building is finished. Heavy excavation on the slope can be avoided, the bridge grouped piles and bearing platform system structure engineering performances are sufficiently used, bridge foundation engineering investment benefits are improved, slope geological environments of bridge site areas are protected, and bridge foundation engineering structure safety and construction safety risks are reduced.
Anchored high bearing platform grouped pile foundation building method for high-steep deformation slope area bridge
The invention discloses an anchored high bearing platform grouped pile foundation building method for a high-steep deformation slope area bridge. The method includes the steps: determining the number of grouped piles, the diameter of each pile and the elevations of each pile top and the bottom of a bearing platform; determining the length of each pile; determining the number of anchor ropes; determining the number of steel strand bundles of each anchor rope and the diameter of an anchor hole; determining a pitching angle of each anchor rope; forming a 2-degree included angle between an edge column anchor rope and a center line of the bearing platform along the inclined direction of a slop on a horizontal plane; finishing construction of all foundation piles of the bearing platform; overlapping the bearing platform, a connection reinforced concrete supports of the bearing platform, anchors and the piles and a bottom die, and erecting a side die; drilling in a slope rock; making the anchor ropes; applying initial pre-stress for the anchor ropes; locking anchor heads; casting concrete for sealing the anchors; continuing to perform construction for bridge pier columns and an upper structure of a bridge body until building is finished. Heavy excavation on the slope can be avoided, the bridge grouped piles and bearing platform system structure engineering performances are sufficiently used, bridge foundation engineering investment benefits are improved, slope geological environments of bridge site areas are protected, and bridge foundation engineering structure safety and construction safety risks are reduced.
Anchored high bearing platform grouped pile foundation building method for high-steep deformation slope area bridge
DENG RONGGUI (author) / ZHONG ZHIBIN (author) / FU XIAOMIN (author) / HU MIN (author) / ZHENG XINGJUN (author) / YIN JING (author) / SHAO KANG (author) / ZHANG YING (author) / DU YAYU (author) / WANG YUANYUAN (author)
2015-04-22
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
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