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A platform for research: civil engineering, architecture and urbanism
Excavating and supporting process for foundation pit of water-permeable riverbed
The invention relates to a water-permeable riverbed foundation pit excavation and support process, and relates to the field of bridge construction in a riverway, and the water-permeable riverbed foundation pit excavation and support process comprises the steps of steel sheet pile driving, foundation pit bottom soil body reinforcement, soil body excavation, surrounding purlin installation and bottom sealing concrete pouring, and the foundation pit bottom soil body reinforcement comprises the steps that grouting is conducted on the foundation pit bottom and within the steel sheet pile enclosure range, and grouting holes are arranged in a quincunx shape; the adjacent grouting holes are engaged with each other, and cement-water glass double-liquid grouting is adopted as the grout. The method has the effect that the situation that the cofferdam possibly collapses in the foundation pit excavation process is reduced.
本申请涉及一种透水性河床基坑开挖支护工艺，涉及河道内桥梁施工的领域，包括钢板桩打桩、基坑底土体加固、土体开挖、围檩安装、浇注封底混凝土，其中基坑底土体加固包括：对基坑底、钢板桩围护范围内注浆，注浆孔梅花形布置，相邻的注浆孔之间相互咬合，浆液采用水泥‑水玻璃双液注浆。本申请具有减少基坑开挖的过程中，围堰可能会坍塌的情况发生的效果。
Excavating and supporting process for foundation pit of water-permeable riverbed
The invention relates to a water-permeable riverbed foundation pit excavation and support process, and relates to the field of bridge construction in a riverway, and the water-permeable riverbed foundation pit excavation and support process comprises the steps of steel sheet pile driving, foundation pit bottom soil body reinforcement, soil body excavation, surrounding purlin installation and bottom sealing concrete pouring, and the foundation pit bottom soil body reinforcement comprises the steps that grouting is conducted on the foundation pit bottom and within the steel sheet pile enclosure range, and grouting holes are arranged in a quincunx shape; the adjacent grouting holes are engaged with each other, and cement-water glass double-liquid grouting is adopted as the grout. The method has the effect that the situation that the cofferdam possibly collapses in the foundation pit excavation process is reduced.
本申请涉及一种透水性河床基坑开挖支护工艺，涉及河道内桥梁施工的领域，包括钢板桩打桩、基坑底土体加固、土体开挖、围檩安装、浇注封底混凝土，其中基坑底土体加固包括：对基坑底、钢板桩围护范围内注浆，注浆孔梅花形布置，相邻的注浆孔之间相互咬合，浆液采用水泥‑水玻璃双液注浆。本申请具有减少基坑开挖的过程中，围堰可能会坍塌的情况发生的效果。
Excavating and supporting process for foundation pit of water-permeable riverbed
一种透水性河床基坑开挖支护工艺
LIU CAN (author) / WANG YUAN (author) / HAN HONGTAO (author) / NI TIANYIN (author) / WANG ZHIHUI (author) / MA ZHIMIAO (author) / LIU ZHIWEI (author)
2024-08-09
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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