A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Underpass layered excavation waterproof curtain construction method under water-rich geological condition
The invention discloses a tunnel layered excavation waterproof curtain construction method under the water-rich geological condition. The construction method comprises the following steps that A, drilling equipment is moved to a construction area; b, paying-off positioning is conducted on the construction area; c, drilling to a designed depth by a drilling machine; d, secondary hole cleaning is conducted; e, a reinforcement cage is placed in the hole; f, impervious concrete is injected into the hole, and construction of a single pile is completed; g, a plurality of pile holes are drilled in a groove-jumping excavation mode, pouring is conducted after a reinforcement cage is placed in the pile holes, and construction of the drilled piles is completed; h, a jet grouting pile is drilled between every two adjacent drilling piles, continuous jet grouting is carried out, and construction of the waterproof curtain is completed. According to the construction method, adjacent soil bodies are not disturbed, damage such as adjacent ground subsidence, house inclination, road crack and underground facility displacement cannot be generated, the water stopping effect is good in the construction area under the water-rich geological condition, leakage is avoided, and the construction efficiency is improved. And the tunnel excavation safety is ensured.
本发明公开了富水地质条件下地道分层开挖止水帷幕施工方法，施工方法包括以下步骤：A、将钻孔设备移至施工区域；B、对施工区域进行放线定位；C、之后钻机钻孔至设计深度；D、进行二次清孔；E、在孔内放入钢筋笼；F、在孔内注入防渗混凝土，完成单根桩的施工；G、之后采用跳槽开挖方式钻多个桩孔，并在桩孔内放入钢筋笼后在进行浇筑，完成钻孔桩的施工；H、之后在相邻两根钻孔桩之间钻旋喷桩，进行连续旋喷，即完成止水帷幕的施工，本发明采用的施工方法不扰动邻近土体、不会产生邻近地面下沉、房屋倾斜、道路裂损及地下设施位移等危害，在富水地质条件施工区域止水效果好、无渗漏，确保地道开挖的安全性。
Underpass layered excavation waterproof curtain construction method under water-rich geological condition
The invention discloses a tunnel layered excavation waterproof curtain construction method under the water-rich geological condition. The construction method comprises the following steps that A, drilling equipment is moved to a construction area; b, paying-off positioning is conducted on the construction area; c, drilling to a designed depth by a drilling machine; d, secondary hole cleaning is conducted; e, a reinforcement cage is placed in the hole; f, impervious concrete is injected into the hole, and construction of a single pile is completed; g, a plurality of pile holes are drilled in a groove-jumping excavation mode, pouring is conducted after a reinforcement cage is placed in the pile holes, and construction of the drilled piles is completed; h, a jet grouting pile is drilled between every two adjacent drilling piles, continuous jet grouting is carried out, and construction of the waterproof curtain is completed. According to the construction method, adjacent soil bodies are not disturbed, damage such as adjacent ground subsidence, house inclination, road crack and underground facility displacement cannot be generated, the water stopping effect is good in the construction area under the water-rich geological condition, leakage is avoided, and the construction efficiency is improved. And the tunnel excavation safety is ensured.
本发明公开了富水地质条件下地道分层开挖止水帷幕施工方法，施工方法包括以下步骤：A、将钻孔设备移至施工区域；B、对施工区域进行放线定位；C、之后钻机钻孔至设计深度；D、进行二次清孔；E、在孔内放入钢筋笼；F、在孔内注入防渗混凝土，完成单根桩的施工；G、之后采用跳槽开挖方式钻多个桩孔，并在桩孔内放入钢筋笼后在进行浇筑，完成钻孔桩的施工；H、之后在相邻两根钻孔桩之间钻旋喷桩，进行连续旋喷，即完成止水帷幕的施工，本发明采用的施工方法不扰动邻近土体、不会产生邻近地面下沉、房屋倾斜、道路裂损及地下设施位移等危害，在富水地质条件施工区域止水效果好、无渗漏，确保地道开挖的安全性。
Underpass layered excavation waterproof curtain construction method under water-rich geological condition
富水地质条件下地道分层开挖止水帷幕施工方法
LI JILONG (author) / DING XINSHENG (author) / YUE BAOZHONG (author) / LI WENKUI (author) / LI DEPENG (author) / WANG TIECHENG (author) / ZHANG YANKE (author) / ZHANG YUCHAO (author) / WANG PU (author) / NIU HAOYUAN (author)
2024-08-30
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2021
| European Patent Office | 2020
| European Patent Office | 2021