水电基础局自
1959
年在北京密云水库
创建中国
首道槽孔型
混凝土防渗墙以来，积累了极其丰富的槽孔型防渗墙经验，是
水利、水电行业
防渗墙施工规范
的主编单位
，是
相关国家级工法的完成单位
。参与了
三峡、葛洲坝、向家坝
等一批世界级水电站防渗墙工程建设，经过多年的技术创新，公司超深和复杂地质条件下防渗墙建造技术，达到
国际领先
水平。相关技术还在国内外其它
数百项
水利水电程中应用，并推广到交通、市政、矿山、环保工程等多个领域。
重点代表项目如下：
Since completion of the China's
first trench concrete cutoff wall
at
Miyun Reservoir in Beijing in 1959
, Sinohydro Foundation Engineering Co., Ltd. has accumulated extremely rich experience in trench cutoff walls. It is
the chief compiling unit of Specification of cutoff wall for the water conservancy and hydropower industries and the completion unit of relevant national-level construction methods
. It has participated in the construction of cutoff wall of a number of world-class hydropower stations such as the
Three Gorges, Gezhouba, and Xiangjiaba
. After many years of technological innovation, the company's technology for constructing cutoff walls under ultra-deep and complex geological conditions has reached the
leading level in the world
. Relevant technologies have also been applied in
hundreds
of other domestic and foreign water conservancy and hydropower projects and extended to multiple fields such as transportation, municipal administration, mining, and environmental protection projects.
Key typical projects are as follows:
北京密云水库
Miyun Reservoir in Beijing
1960年建成，墙厚0.8米，最大深度44米，防渗面积2.5万平方米，是中国水利建设史上
第一道
槽孔型防渗墙，荣获
国家
创造
发明特等奖
。
The Miyun Reservoir, with a wall thickness of 0.8 meters, a maximum depth of 44 meters,
and a seepage control
area of 25,000 square meters, was completed in 1960. It is
the first trench
cutoff wall in the history of China's water conservancy construction and won
the special prize for national creative inventions
.
长江三峡水利枢纽
Three Gorges Hydropower Station
在长江三峡水利枢纽建设中，承担了一期、隔流堤、二期上游围堰混凝土防渗墙和三期围堰自凝灰浆防渗墙，最大深度73.5米，累计完成防渗墙14.1万平方米。
In the construction of the Three Gorges Project on the Yangtze River, Sinohydro Foundation Engineering Co., Ltd has undertaken the phase I project, the cofferdam for river diversion, the concrete cut-off wall of the upstream cofferdam in phase II and the self-hardening cement-bentonite cut-off wall in phase III cofferdam.The maximum depth of cutoff wall is 73.5 meters and the total area have been completed is141,000 square meters.
三峡二期围堰是三峡水利枢纽8项重点技术难题之一，防渗墙为当时综合难度最大、工期最紧、地质最复杂，被称为大江截流后决定工程进展的“
水下生命线
”。工程尚未竣工的基坑抽水期间，成功经受住1998年长江8次洪峰考验，防渗效果卓越。
国内首次
应用液压铣槽机，实践出“铣抓钻”“铣砸爆”等多种机械设备综合成槽施工工艺。此后，液压铣槽机在国内得到大范围应用。2005年，《长江三峡二期上游围堰防渗墙施工技术研究与工程实践》荣获
国家科技进步二等奖
。“长江三峡枢纽工程”2011年获百年百项杰出土木工程奖，2019年获
国家科技进步特等奖
。
The cofferdam in phase II of the Three Gorges Project is one of the eight key technical problems of the Three Gorges Hydropower Station project. The cut-off wall, with the greatest comprehensive difficulty, the tightest construction period and the most complex geology at that time, is called the "
underwater lifeline
" that determines the progress of the project after the closure of the Yangtze River. During the pumping period of the foundation pit before the project is completed, it successfully withstood the tests of eight flood peaks of the Yangtze River in 1998, and the seepage control is excellent.
For the first time in China
, hydraulic trench cutters are applied, and construction technologies such as "milling-grabbing-drilling" and "milling-smashing-blasting" for excavation by multiple mechanical equipments are practiced. Since then, hydraulic trench cutters have been widely used in China. In 2005, "Research and Engineering Practice of Construction Technology for the concrete cut-off wall of the upstream cofferdam in phase II of the Yangtze River Three Gorges Project" won the second prize of the National Science and Technology Progress Award. The "Yangtze River Three Gorges Project"
won the Outstanding Civil Engineering Award of One Hundred Years and One Hundred Items
in 2011 and
the National Special Prize for Science and Technology Progress
in 2019.
西藏旁多水利枢
The cutoff wall of the dam foundation for the Pangduo Water Control Project in Tibet
西藏旁多水利枢纽大坝基础防渗墙，墙厚1米，防渗面积12.5万平方米，其中孔深超150米的成墙面积达7.78万平方米。是当时世界防渗墙施工史上规模最大、墙体最深、难度最大的防渗墙工程。创防渗墙墙体最深201.47米、水下混凝土浇筑201.47米、连接槽段拔管最深158米等
三项世界纪录
。公司《超深与复杂地质条件混凝土防渗墙关键技术》荣获
国家科技进步二等奖
。
The cutoff wall of the dam foundation for the Pangduo Water Control Project in Tibet has a cutoff wall with thickness of 1 meter and an seepage control area of 125,000 square meters. Among them, the wall area with a hole depth of more than 150 meters reaches 77,800 square meters. It is the largest, deepest and most difficult cutoff wall in the history of cutoff wall construction in the world at that time. It has set
three world records
: the deepest cutoff wall of 201.47 meters, the deepest concrete pouring of 201.47 meters by tremie method, and the deepest extraction of stop end of 158 meters. The company's "Key Technologies of Concrete Cut-off Wall under Ultra-deep and Complex Geological Conditions" won
the second prize of the National Science and Technology Progress Award
.
江西长江干流江岸与堤防加固整治工程
Main stream riverbank and embankment reinforcement and
renovation of Yangtze River in Jiangxi province
建设江西长江干流江岸与堤防加固整治工程，在芙蓉堤段建成的防渗墙，墙体厚仅0.14米，是
国内第一道最薄
地下连续墙。其中1999年建成的下游九江段，和2001年建成的湖北黄冈段，分别获
中国水利优质工程大禹奖
，
“长江重要堤防整治加固工程”2011年获百年百项杰出土木工程奖
。在工程建设中，中国水电基础局被温家宝同志赞誉为“
基础处理王牌军
”。
For the construction of the Yangtze River main stream riverbank and embankment reinforcement and renovation project in Jiangxi province, the cutoff wall built in the Furong embankment section has a wall thickness of only 0.14 meters, which is
the thinnest diaphragm wall in China
. The downstream Jiujiang section completed in 1999 and the Huanggang section of Hubei completed in 2001 respectively won the
Dayu Award for high-quality Water Control Projects in China. The "Yangtze River important embankment renovation and reinforcement project" won the Outstanding Civil Engineering Award of One Hundred Years and One Hundred Items in 2011
. During the project construction, Sinohydro Foundation Engineering Co., Ltd. was praised as the "
iron army of foundation treatment
" by Prime minister Wen Jiabao .
云南红石岩堰塞湖整治工程
Hongshiyan quake lake regulation project in Yunnan province
红石岩堰塞湖整治工程堰塞体防渗墙，最大墙深137.34米，墙厚1.2米，防渗面积31371.8平方米。在规模庞大的滑坡崩塌体中，成功建造超百米深完整可靠的防渗体系，开创了
堰塞坝除害兴利、变废为宝的先例
，在国际学术和工程界产生了重要影响。
For the cutoff wall of the barrier body in the Hongshiyan quake lake regulation project, the maximum wall depth is 137.34 meters, the wall thickness is 1.2 meters, and the seepage control area is 31,371.8 square meters. In the massive landslide and collapse mass, a complete and reliable seepage control system with a depth of over 100 meters has been successfully constructed, creating
a precedent for turning barrier dams from harmful to beneficial and turning waste into treasure
, and has had an important impact in the international academic and engineering fields.
新疆大河沿水利枢纽
Daheyan Water Control Project in Xinjiang
在新疆维吾尔自治区重点水利工程——大河沿水利枢纽工程中建成水库大坝基础防渗墙，连续多幅墙深超过180米，最大墙深186.15米。深墙孔斜率成功控制在2‰，远优于行业孔斜率6‰的标准，达到
世界领先水平
。
In the Daheyan Water Control Project, a key water control project in the Xinjiang Uygur Autonomous Region, a cutoff wall for the foundation of the dam has been completed. The depth of multiple consecutive panels exceeds 180 meters, and the maximum wall depth is 186.15 meters. The hole inclination rate of deep walls has been successfully controlled at 2‰, which is far better than the industry standard of 6‰ and reaches
the world-leading level
.
黄河小浪底水利枢纽
Yellow River Xiaolangdi Water Control
Project
黄河小浪底水利枢纽上游围堰、右岸主坝防渗墙建成总防渗面积2.4万平方米。主坝防渗墙墙厚1.2米，深81.9米，深度创当时
国内之最
。混凝土强度高达35兆帕，为
国内之最
。“黄河小浪底水利枢纽工程”2009年
获中国水利优质工程大禹奖，2011年获中国建设工程鲁班奖、百年百项杰出土木工程奖。
The total seepage control area of the cutoff wall of upstream cofferdam and the right bank of the main dam of the Yellow River Xiaolangdi Water Control Project is 24,000 square meters. The cutoff wall main dam is 1.2 meters thick and 81.9 meters deep, setting
the deepest record in China
at that time. The concrete strength is up to 35 MPa, also the highest in China. The "Yellow River Xiaolangdi Water Control Project" won
the Dayu Prize for high-quality Water Control Projects in China
in 2009, and the
Luban Prize for China Construction Projects and the Outstanding Civil Engineering Award for 100 Years and 100 Projects in 2011.
葛洲坝水利枢纽
Gezhouba
Water Control Project
“万里长江第一坝”——葛洲坝水利枢纽大江围堰防渗墙，最大深度47.3米，防渗面积超
7万平方米
，防渗墙规模为当时
国内之最
。
The cutoff wall of the cofferdam of the Gezhouba Water Control Project, known as "the first dam on the Yangtze River", has a maximum depth of 47.3 meters and an -seepage control area of over
70,000 square meters
. The scale of the cutoff wall was
the largest in China at that time
.
在葛洲坝大江围堰防渗墙中
首次
试验“接头管法”，首次引进日本“真砂”液压导板抓斗挖槽机。1982年，接头管法纳入
国家“六五”
科技攻关项目，研制出
我国第一台
BG200/900型大型液压拔管机。
The "joint pipe method" was
first tested
in the cutoff wall of the cofferdam of Gezhouba. The Japanese "Masago" hydraulic guide plate grab was introduced for the first time. In 1982, the joint pipe method was included in the scientific and technological research project of the national "
Sixth Five-Year Plan
" , and
China's first
BG200/900 large hydraulic pipe extraction machine was developed.
四川金沙江向家坝水电站
Xiangjiaba Hydropower Station on Jinsha River in Sichuan
