Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Earth dam grouting seepage prevention and reinforcement method
The invention discloses an earth dam grouting seepage prevention and reinforcement method. The earth dam grouting seepage prevention and reinforcement method comprises the following steps that (1) a grouting pipe is connected with a drill bit to serve as a drilling tool of a geological drilling machine, and slurry serves as drilling flushing fluid to conduct drilling; (2) after the drilling is completed, the geological drilling machine is moved away, the grouting pipe and a grouting pump are connected, and a pipe drawing machine is installed; (3) sectional constant-pressure grouting is carriedout according to 0.5-1.5 m/section; (4) segmenting is conducted from bottom to top, and the grouting in the step (3) is repeated until reaching a set elevation position, and the grouting of whole grouting holes is completed; and the grouting of all the grouting holes is completed in this way, and namely the earth dam grouting seepage prevention and reinforcement are completed. According to the earth dam grouting seepage prevention and reinforcement method, the grouting pipe serves as a drill rod, the problem that in the prior art, a geological drill rod is adopted for drilling and grouting inthe construction process, and consequently the inner diameter of the drill rod is too small is solved, and the technical problems that in the prior art, the process that the geological drill rod is adopted for pipe-following drilling to form a hole, then the drill rod is pulled out, a casing pipe is pulled out after the large-diameter grouting pipe is lowered, hole sealing slurry is lowered and the like is complex in construction process and low in work efficiency are solved.
一种土坝注浆防渗与加固方法：(1)将注浆管接上钻头作为地质钻机的钻具，采用泥浆作为钻孔冲洗液，进行钻孔；(2)钻孔完成后移开地质钻机，将注浆管、注浆泵连接，并安装拔管机；(3)按0.5～1.5m/段，进行分段定压注浆；(4)自下而上进行分段，重复步骤(3)的注浆，直至达到设定高程位置，完成整个注浆孔的注浆；依此完成所有注浆孔的注浆，即完成土坝注浆防渗与加固。本发明将注浆管作为钻杆，解决了现有技术施工过程中采用地质钻杆进行钻孔、注浆，存在钻杆内径过小的问题，也解决了现有技术中采用地质钻杆跟管钻进成孔，后拔出钻杆，再下大直径注浆管中再拔出套管，下封孔浆等工艺存在的施工工艺复杂、工效低的技术问题。
Earth dam grouting seepage prevention and reinforcement method
The invention discloses an earth dam grouting seepage prevention and reinforcement method. The earth dam grouting seepage prevention and reinforcement method comprises the following steps that (1) a grouting pipe is connected with a drill bit to serve as a drilling tool of a geological drilling machine, and slurry serves as drilling flushing fluid to conduct drilling; (2) after the drilling is completed, the geological drilling machine is moved away, the grouting pipe and a grouting pump are connected, and a pipe drawing machine is installed; (3) sectional constant-pressure grouting is carriedout according to 0.5-1.5 m/section; (4) segmenting is conducted from bottom to top, and the grouting in the step (3) is repeated until reaching a set elevation position, and the grouting of whole grouting holes is completed; and the grouting of all the grouting holes is completed in this way, and namely the earth dam grouting seepage prevention and reinforcement are completed. According to the earth dam grouting seepage prevention and reinforcement method, the grouting pipe serves as a drill rod, the problem that in the prior art, a geological drill rod is adopted for drilling and grouting inthe construction process, and consequently the inner diameter of the drill rod is too small is solved, and the technical problems that in the prior art, the process that the geological drill rod is adopted for pipe-following drilling to form a hole, then the drill rod is pulled out, a casing pipe is pulled out after the large-diameter grouting pipe is lowered, hole sealing slurry is lowered and the like is complex in construction process and low in work efficiency are solved.
一种土坝注浆防渗与加固方法：(1)将注浆管接上钻头作为地质钻机的钻具，采用泥浆作为钻孔冲洗液，进行钻孔；(2)钻孔完成后移开地质钻机，将注浆管、注浆泵连接，并安装拔管机；(3)按0.5～1.5m/段，进行分段定压注浆；(4)自下而上进行分段，重复步骤(3)的注浆，直至达到设定高程位置，完成整个注浆孔的注浆；依此完成所有注浆孔的注浆，即完成土坝注浆防渗与加固。本发明将注浆管作为钻杆，解决了现有技术施工过程中采用地质钻杆进行钻孔、注浆，存在钻杆内径过小的问题，也解决了现有技术中采用地质钻杆跟管钻进成孔，后拔出钻杆，再下大直径注浆管中再拔出套管，下封孔浆等工艺存在的施工工艺复杂、工效低的技术问题。
Earth dam grouting seepage prevention and reinforcement method
一种土坝注浆防渗与加固方法
BIN BIN (Autor:in) / HE MOLI (Autor:in) / ZHAO TIEJUN (Autor:in) / PENG CHUNLEI (Autor:in) / TIAN XINHONG (Autor:in) / SUN CHAO (Autor:in) / LOU SHENGLIN (Autor:in) / HUANG XIAOQIAN (Autor:in) / ZHONG YONG (Autor:in) / GUO ZEYANG (Autor:in)
06.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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