Prevention measures for diffraction flows around H-type steel joint of diaphragm wall
-
摘要: 通过对地下连续墙H型钢接头混凝土绕流的原因和危害进行分析,结合目前地下连续墙H型钢接头防绕流的主要措施及其不足,探讨了一种新型的地下连续墙H型钢接头防绕流措施。通过在H型钢接头侧壁安置可膨胀的橡皮胶囊,并在橡皮胶囊中放置注浆管,注入水泥浆液后橡皮胶囊膨胀,密贴地下连续墙侧壁,从而较好的堵塞混凝土绕流的通道。这种措施不仅能在H型钢接头中应用,在锁口管接头中也能得到应用。Abstract: The reasons and disasters of diffraction flows around H-type steel joints of diaphragm wall are analyzed. Combined with their main measures and shortcomings, a new kind of H-type steel joint for preventing diffraction flows is discussed on the. The rubber capsule is placed on the wall of H-type steel joint, and the grouting pipe is placed in the rubber capsule. Then the rubber capsule is expanded into the cement slurry and closely pastes on the side wall of the diaphragm wall, so as to prevent diffraction flows around the concrete channel. The proposed measures can be used in H-type steel joints and also in locked pipe ones.
-
Keywords:
- H-type steel joint /
- diffraction flow /
- measure /
- rubber capsule
-
[1] 王卫东, 邸国恩, 黄邵铭. 地下连续墙预制接头技术的研究与应用[J]. 地下空间与工程学报, 2007. (WANG Wei-dong, DI Guo-en, HUANG Shao-ming. Underground continuous wall prefabricated joint research and application of technology[J]. Underground Space and Engineering, 2007. (in Chinese)) [2] 丛蔼森. 地下连续墙的设计施工与应用[M]. 北京: 中国水利水电出版社, 2001. (CONG Ai-sen. The design and construction of underground continuous wall[M]. Beijing: China Water Power Press, 2001. (in Chinese)) [3] DB 42/T914—2013 地下连续墙施工技术规程[S]. 2014. (DB 42/T914—2013 Underground continuous wall construction Technical Specification[S]. 2014. (in Chinese))
计量
- 文章访问数: 287
- HTML全文浏览量: 3
- PDF下载量: 633