论文部分内容阅读
近几年来,在钱塘江下游两岸的水利工程中,采用沉井作水工建筑物的基础已广泛应用,并取得了较好的技术经济效果。雄伟壮观的钱塘江涌潮,闻名世界。在涌潮极强的动力条件下,它对海塘及其他水工建筑物的破坏很大,钱塘江两岸的粉砂土地质,给水利工程施工也带来较大的困难,基础开挖经常遇到大量流砂和坍坡,致使基础无法施工。水工建筑物的基础还经常受洪水和涌潮冲刷的威胁。省钱塘江工程管理局工程队,于1969年在萧山左山湾首先采用沉井作海塘丁坝坝头保护获得成功以后,萧山、绍兴、上虞和余杭等县先后将沉井用于小型水闸、电力排灌站
In recent years, in the water conservancy projects on both sides of the lower reaches of the Qiantang River, the use of caisson as the basis for hydraulic structures has been widely used and has achieved good technical and economic results. Majestic Qiantang River tide is famous around the world. Under strong flooding conditions, it has caused great damage to seawalls and other hydraulic structures. The silty soil on the banks of the Qiantang River has also brought great difficulties to the construction of water conservancy projects. Basic excavation often occurs. A large amount of sand and slopes have caused the foundation to fail to be constructed. The foundations of hydraulic structures are also often threatened by flooding and flooding. After the success of the project team of the Qiantang River Engineering Administration Bureau in 1969 in Xiaoshan, Zuoshan Bay, the success of the first use of caisson as the seawall groyne dam head protection has been successful. Xiaoshan, Shaoxing, Shangyu, and Yuhang counties have used the caisson for small sluice gates and power. Drainage and irrigation station