A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for blocking underground river in karst geology
The invention relates to the technical field of dam construction, and discloses a karst geology underground river blocking method which comprises the following steps: 1, in a dam construction area, determining whether underground rivers and karst cave groups passing through curtain lines exist or not through geophysical prospecting and drilling technologies; secondly, a grouting footrill is arranged at the dam foundation to expose the forms of the underground river and the dissolving cavity, the flow speed and flow of water flow of the underground river are detected, and a water incoming point and a water eliminating point of the underground river in the dissolving cavity are found; thirdly, a first water collecting well is arranged to collect water flow, and the top of the first water collecting well communicates with the grouting footrill; a second water collecting well is arranged at the water eliminating point to collect water flow, and a backfill grouting pipe is pre-buried from the grouting footrill to the water eliminating point; fourthly, a pouring hole is drilled in the top of the karst cave, and steel sleeves are installed in the pouring hole from the earth surface to the karst cavity; and fifthly, concrete is poured into the dissolving cavity through the pouring hole to backfill the dissolving cavity, and then the water incoming point is blocked. The method is stable, reliable, high in safety and capable of effectively blocking the underground river.
本发明涉及水坝建设施工技术领域，公开了一种喀斯特地质地下暗河封堵方法，包括以下步骤：第一步：在大坝施工区，通过物探、钻探技术确认地下有没有穿过帷幕线的暗河、溶洞群的位置；第二步：在坝基处设置灌浆平硐揭露暗河和溶腔形态，检测暗河水流的流速及流量，找到溶腔中暗河的来水点和消水点；第三步：设第一集水井将水流收集，第一集水井顶部与灌浆平硐连通；消水点处设置第二集水井将水流收集，从灌浆平硐到消水点处预埋回填灌浆管；第四步：在溶洞顶部钻设浇注孔，浇注孔内从地表至溶腔处均安装钢套管；第五步：浇注孔向溶腔中浇注混凝土回填溶腔，后封堵来水点。以提供一种稳定可靠、安全性高、能够有效封堵地下暗河的方法。
Method for blocking underground river in karst geology
The invention relates to the technical field of dam construction, and discloses a karst geology underground river blocking method which comprises the following steps: 1, in a dam construction area, determining whether underground rivers and karst cave groups passing through curtain lines exist or not through geophysical prospecting and drilling technologies; secondly, a grouting footrill is arranged at the dam foundation to expose the forms of the underground river and the dissolving cavity, the flow speed and flow of water flow of the underground river are detected, and a water incoming point and a water eliminating point of the underground river in the dissolving cavity are found; thirdly, a first water collecting well is arranged to collect water flow, and the top of the first water collecting well communicates with the grouting footrill; a second water collecting well is arranged at the water eliminating point to collect water flow, and a backfill grouting pipe is pre-buried from the grouting footrill to the water eliminating point; fourthly, a pouring hole is drilled in the top of the karst cave, and steel sleeves are installed in the pouring hole from the earth surface to the karst cavity; and fifthly, concrete is poured into the dissolving cavity through the pouring hole to backfill the dissolving cavity, and then the water incoming point is blocked. The method is stable, reliable, high in safety and capable of effectively blocking the underground river.
本发明涉及水坝建设施工技术领域，公开了一种喀斯特地质地下暗河封堵方法，包括以下步骤：第一步：在大坝施工区，通过物探、钻探技术确认地下有没有穿过帷幕线的暗河、溶洞群的位置；第二步：在坝基处设置灌浆平硐揭露暗河和溶腔形态，检测暗河水流的流速及流量，找到溶腔中暗河的来水点和消水点；第三步：设第一集水井将水流收集，第一集水井顶部与灌浆平硐连通；消水点处设置第二集水井将水流收集，从灌浆平硐到消水点处预埋回填灌浆管；第四步：在溶洞顶部钻设浇注孔，浇注孔内从地表至溶腔处均安装钢套管；第五步：浇注孔向溶腔中浇注混凝土回填溶腔，后封堵来水点。以提供一种稳定可靠、安全性高、能够有效封堵地下暗河的方法。
Method for blocking underground river in karst geology
一种喀斯特地质地下暗河封堵方法
ZHANG HAN (author) / LI CHUNZAO (author) / CAI DONGBO (author) / CHAI SHAOQIANG (author) / SU KEJING (author) / JIANG JUNBO (author) / YAN DONGJIE (author) / LIU XIAOQIANG (author)
2023-10-31
Patent
Electronic Resource
Chinese
| European Patent Office | 2020
| European Patent Office | 2020
| European Patent Office | 2024
| European Patent Office | 2020