Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Deepwater cofferdam plastic concrete diaphragm wall construction method
The invention relates to the technical field of diaphragm wall construction, in particular to a deepwater cofferdam plastic concrete diaphragm wall construction method which comprises the steps that guide walls are arranged on the two sides of a wall body before hole forming construction of a plastic concrete diaphragm wall, and paste grout is grouted and solidified firstly; and after the strength reaches the standard, a Ukas type or hand-pulling hammer type percussion drill is selected according to the space size of a site construction platform for hole forming and groove forming, and the wall is formed through groove jumping and staged pouring. According to the characteristics that the loose filling body cofferdam is large in hole and difficult in hole forming, in combination with special geological conditions, paste slurry grouting is adopted as a loose filling body pretreatment mode, compared with common grouting, the grouting amount is reduced, meanwhile, the consolidation effect is improved, the hole collapse rate in follow-up anti-seepage wall construction is reduced, and the construction efficiency is improved. The time for backfilling and re-forming the collapsed hole of the groove section is shortened, and the anti-seepage efficiency of the wall body is improved.
本发明涉及防渗墙施工技术领域，具体涉及一种深水围堰塑性混凝土防渗墙施工方法，包括在塑性混凝土防渗墙造孔施工前于墙体两侧设置导墙，并先行膏状浆液灌浆固结，强度达标后根据现场施工平台空间大小选择采用乌卡斯式或手拉锤式冲击钻进行造孔成槽，跳槽分期浇筑成墙。本发明针对松散填筑体围堰孔隙大、难造孔的特点，结合特殊的地质情况，采用了膏浆灌浆作为松散填筑体预处理方式，相比普通灌浆在减少灌注量的同时增加了固结效果，使后续防渗墙施工中的塌孔率降低，减少了槽段塌孔回填、重新造孔的时间，提高了墙体的防渗效能。
Deepwater cofferdam plastic concrete diaphragm wall construction method
The invention relates to the technical field of diaphragm wall construction, in particular to a deepwater cofferdam plastic concrete diaphragm wall construction method which comprises the steps that guide walls are arranged on the two sides of a wall body before hole forming construction of a plastic concrete diaphragm wall, and paste grout is grouted and solidified firstly; and after the strength reaches the standard, a Ukas type or hand-pulling hammer type percussion drill is selected according to the space size of a site construction platform for hole forming and groove forming, and the wall is formed through groove jumping and staged pouring. According to the characteristics that the loose filling body cofferdam is large in hole and difficult in hole forming, in combination with special geological conditions, paste slurry grouting is adopted as a loose filling body pretreatment mode, compared with common grouting, the grouting amount is reduced, meanwhile, the consolidation effect is improved, the hole collapse rate in follow-up anti-seepage wall construction is reduced, and the construction efficiency is improved. The time for backfilling and re-forming the collapsed hole of the groove section is shortened, and the anti-seepage efficiency of the wall body is improved.
本发明涉及防渗墙施工技术领域，具体涉及一种深水围堰塑性混凝土防渗墙施工方法，包括在塑性混凝土防渗墙造孔施工前于墙体两侧设置导墙，并先行膏状浆液灌浆固结，强度达标后根据现场施工平台空间大小选择采用乌卡斯式或手拉锤式冲击钻进行造孔成槽，跳槽分期浇筑成墙。本发明针对松散填筑体围堰孔隙大、难造孔的特点，结合特殊的地质情况，采用了膏浆灌浆作为松散填筑体预处理方式，相比普通灌浆在减少灌注量的同时增加了固结效果，使后续防渗墙施工中的塌孔率降低，减少了槽段塌孔回填、重新造孔的时间，提高了墙体的防渗效能。
Deepwater cofferdam plastic concrete diaphragm wall construction method
一种深水围堰塑性混凝土防渗墙施工方法
LI LONG (Autor:in) / LU LU (Autor:in) / HUANG DONGSHENG (Autor:in) / CHEN DEZHOU (Autor:in) / LYU ZHAOWEN (Autor:in) / LI ANTUO (Autor:in) / LI JINGRONG (Autor:in) / ZHAO RONGHUA (Autor:in)
27.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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