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A platform for research: civil engineering, architecture and urbanism
Construction method of high-speed railway excavation roadbed in karst area
The invention discloses a construction method of a high-speed railway excavation roadbed in a karst area. The construction method comprises the following steps that S1, the karst development degree isdetermined through physical exploration and drilling means; S2, the surface of the original ground is cleaned, earth and stone are excavated, and blasting is carried out; S3, slope cleaning and protection are carried out; S4, a foreign matter intrusion prevention protective net is arranged; S5, a karst foundation is reinforced; and S6, after the karst foundation reinforcement is detected to be qualified, a ballastless track structure on the karst foundation is constructed. According to the construction method, the construction quality of the high-speed railway excavation roadbed in the karstarea can be ensured, the reliability of roadbed excavation slope construction and operation is ensured, the stability of the roadbed and the qualification of roadbed post-construction settlement are ensured, and the roadbed is guaranteed to be prevented from generating collapse, rockfall and other diseases.
本发明公开了一种岩溶地区高速铁路挖方路基的施工方法，包括以下步骤：步骤一，通过物理勘探、钻探手段确定岩溶发育程度；步骤二，原地面清表、土石方开挖、爆破；步骤三，边坡清理、防护；步骤四，设置防异物入侵防护网；步骤五，岩溶地基加固；步骤六，岩溶地基加固检测合格后施工其上的无砟轨道结构。本发明能够确保高速铁路在岩溶地区挖方路基的施工质量，保证路基挖方边坡施工及运营的可靠性，保证路基的稳定和路基工后沉降的合格，保证路基不产生塌陷和落石等病害。
Construction method of high-speed railway excavation roadbed in karst area
The invention discloses a construction method of a high-speed railway excavation roadbed in a karst area. The construction method comprises the following steps that S1, the karst development degree isdetermined through physical exploration and drilling means; S2, the surface of the original ground is cleaned, earth and stone are excavated, and blasting is carried out; S3, slope cleaning and protection are carried out; S4, a foreign matter intrusion prevention protective net is arranged; S5, a karst foundation is reinforced; and S6, after the karst foundation reinforcement is detected to be qualified, a ballastless track structure on the karst foundation is constructed. According to the construction method, the construction quality of the high-speed railway excavation roadbed in the karstarea can be ensured, the reliability of roadbed excavation slope construction and operation is ensured, the stability of the roadbed and the qualification of roadbed post-construction settlement are ensured, and the roadbed is guaranteed to be prevented from generating collapse, rockfall and other diseases.
本发明公开了一种岩溶地区高速铁路挖方路基的施工方法，包括以下步骤：步骤一，通过物理勘探、钻探手段确定岩溶发育程度；步骤二，原地面清表、土石方开挖、爆破；步骤三，边坡清理、防护；步骤四，设置防异物入侵防护网；步骤五，岩溶地基加固；步骤六，岩溶地基加固检测合格后施工其上的无砟轨道结构。本发明能够确保高速铁路在岩溶地区挖方路基的施工质量，保证路基挖方边坡施工及运营的可靠性，保证路基的稳定和路基工后沉降的合格，保证路基不产生塌陷和落石等病害。
Construction method of high-speed railway excavation roadbed in karst area
一种岩溶地区高速铁路挖方路基的施工方法
WANG FEI (author) / ZHANG QIANG (author) / WANG DIANHUI (author) / WANG JINXIANG (author) / LI JISHENG (author) / NIU FENGMING (author) / ZHANG XU (author) / FAN JUNHUAI (author) / YU DONGBIN (author) / OU CHENGZHANG (author)
2020-07-03
Patent
Electronic Resource
Chinese
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