Improvement of construction technology of underwater mass concrete and its application

Dam & Safety ›› 2023, Vol. 0 ›› Issue (4): 58-.

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Improvement of construction technology of underwater mass concrete and its application

CHENG Qingchao, WANG Mengmeng and YU Xun

Hangzhou Guodian Dam Safety Engineering Co., Ltd.

Received:2022-05-10 Online:2021-08-08 Published:2023-11-03

水下大体积混凝土施工技术改进与工程应用

程庆超¹，王蒙蒙²，余勋¹

1. 杭州国电大坝安全工程有限公司，浙江杭州，310014；2. 浙江建工水利水电建设有限公司，浙江杭州，310012

作者简介:程庆超（1992— ），男，河南商丘人，硕士，工程师，主要从事水工建筑物除险加固方面工作。
基金资助:
浙江华东建设公司科研项目（KY2020-HDJS-17）；大坝技术中心科研项目（KY2021-SD-01-16）

Abstract

Abstract: By invention of underwater drilling steel bar anchoring device, steel mesh binding device and mass concrete pouring formwork setting device, the problems in current underwater mass concrete construction, including the difficulty in the shape control of underwater anchor bar and steel mesh, expansion and bursting of the formwork as well as leakage in underwater concrete pouring from the joint, are solved. Practice in a project shows that the application of the improved underwater mass concrete construction technology can effectively improve the efficiency of diving operation, reduce failure rate of underwater mass concrete pouring, and ensure the underwater anchoring effect of steel bars and the appearance of concrete pouring.

Key words: underwater concrete, large volume, underwater pouring, technical improvement

摘要： 发明水下钻孔插筋锚固装置、钢筋网片绑扎装置和大体积混凝土浇筑立模装置，解决了现有水下大体积混凝土施工中存在的水下锚筋、钢筋网片形态难以控制和水下混凝土浇筑的胀模、爆模和拼接缝漏浆问题。在某工程中的实际应用表明，应用改进后的水下大体积混凝土施工技术，可有效提升潜水作业施工效率，降低水下大体积混凝土浇筑失败的概率，保证钢筋水下锚固效果和混凝土浇筑外观质量。

关键词: 水下混凝土, 大体积, 水下浇筑, 技术改进

CLC Number:

TV523

CHENG Qingchao, WANG Mengmeng and YU Xun. Improvement of construction technology of underwater mass concrete and its application[J]. Dam & Safety, 2023, 0(4): 58-.

程庆超, 王蒙蒙, 余勋. 水下大体积混凝土施工技术改进与工程应用[J]. 大坝与安全, 2023, 0(4): 58-.

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Improvement of construction technology of underwater mass concrete and its application

水下大体积混凝土施工技术改进与工程应用

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