Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method suitable for preventing and treating ground karst collapse
The invention discloses a method suitable for ground karst collapse prevention and treatment. The method comprises the following steps that a, the horizontal curtain range and the curtain height are determined; b, curtain lines are arranged within the horizontal curtain range according to the specified line distance, and grouting holes are formed in the curtain lines; c, the grouting holes in the curtain lines are constructed in three sequences, the first-sequence holes are evenly distributed, the second-sequence holes are formed between the adjacent first-sequence holes in a centering mode, and the third-sequence holes are formed between the adjacent first-sequence holes and the second-sequence holes in a centering mode; d, when the grouting hole is drilled to the top plate of the curtain, a geological casing pipe is put down, a gap between the casing pipe and the hole wall of the drill hole is filled and consolidated with cement paste, and a water pressing test is conducted to check the water stopping effect; e, the grouting holes are drilled in a segmented mode for grouting; and f, the d and the e are repeated, and construction of all the grouting holes in the horizontal curtain range is completed. And aiming at the source of karst collapse, the collapse prevention and treatment problem is fundamentally solved. The vertical grouting holes are constructed on the ground, construction is simple, investment is small, and the water plugging rate is high. And the investment cost is saved to the maximum extent by the suspension type horizontal curtain.
本发明公开了一种适用于地面岩溶塌陷防治的方法，包括如下步骤：a、确定水平帷幕范围和帷幕高度；b、在水平帷幕范围内按指定线距设置帷幕线，各帷幕线上布置注浆孔；c、各帷幕线上的注浆孔分三序施工，一序孔均布，二序孔对中布置于相邻的一序孔之间，三序孔对中布置于相邻的一序孔和二序孔之间；d、注浆孔钻进至帷幕顶板时，下入地质套管，并用水泥浆充填固结套管与钻孔孔壁之间的间隙，并进行压水试验检查止水效果；e、注浆孔分段钻进注浆；f、重复d和e，完成水平帷幕范围内所有注浆孔施工。针对岩溶塌陷的根源，从根本上解决塌陷的防治问题。在地面施工垂直注浆孔，施工简单，投资小，堵水率高。悬挂式水平帷幕最大程度节省投资成本。
Method suitable for preventing and treating ground karst collapse
The invention discloses a method suitable for ground karst collapse prevention and treatment. The method comprises the following steps that a, the horizontal curtain range and the curtain height are determined; b, curtain lines are arranged within the horizontal curtain range according to the specified line distance, and grouting holes are formed in the curtain lines; c, the grouting holes in the curtain lines are constructed in three sequences, the first-sequence holes are evenly distributed, the second-sequence holes are formed between the adjacent first-sequence holes in a centering mode, and the third-sequence holes are formed between the adjacent first-sequence holes and the second-sequence holes in a centering mode; d, when the grouting hole is drilled to the top plate of the curtain, a geological casing pipe is put down, a gap between the casing pipe and the hole wall of the drill hole is filled and consolidated with cement paste, and a water pressing test is conducted to check the water stopping effect; e, the grouting holes are drilled in a segmented mode for grouting; and f, the d and the e are repeated, and construction of all the grouting holes in the horizontal curtain range is completed. And aiming at the source of karst collapse, the collapse prevention and treatment problem is fundamentally solved. The vertical grouting holes are constructed on the ground, construction is simple, investment is small, and the water plugging rate is high. And the investment cost is saved to the maximum extent by the suspension type horizontal curtain.
本发明公开了一种适用于地面岩溶塌陷防治的方法，包括如下步骤：a、确定水平帷幕范围和帷幕高度；b、在水平帷幕范围内按指定线距设置帷幕线，各帷幕线上布置注浆孔；c、各帷幕线上的注浆孔分三序施工，一序孔均布，二序孔对中布置于相邻的一序孔之间，三序孔对中布置于相邻的一序孔和二序孔之间；d、注浆孔钻进至帷幕顶板时，下入地质套管，并用水泥浆充填固结套管与钻孔孔壁之间的间隙，并进行压水试验检查止水效果；e、注浆孔分段钻进注浆；f、重复d和e，完成水平帷幕范围内所有注浆孔施工。针对岩溶塌陷的根源，从根本上解决塌陷的防治问题。在地面施工垂直注浆孔，施工简单，投资小，堵水率高。悬挂式水平帷幕最大程度节省投资成本。
Method suitable for preventing and treating ground karst collapse
一种适用于地面岩溶塌陷防治的方法
ZHU CHENGMIN (Autor:in) / YIN DENGCAI (Autor:in) / SUN MAOGUI (Autor:in) / ZHU WENLONG (Autor:in) / YANG ZHU (Autor:in) / ZHANG JI (Autor:in) / XIE SHIPING (Autor:in)
21.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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