Research On Waterway Regulation Of Rocky And Sand Shoal

Currently engaged in the rocky and sand riverbed under the conditions of channel regulation on less technical, this subject through the Xijiang River Waterway restoration project Jieshou entity model test and test data analysis and draw some conclusions for the future under such special conditions the rectification of river, provide some experience.The Xijiang River Waterway is planed "two longitudinal cross a two networks," in the "horizontal" is the communication of Yunnan, Guizhou, Guangxi and Guangdong, Hong Kong and Macao waterborne transport arteries river in Guangxi after 90 per cent of capacity the river. Xijiang Jieshou to Zhaoqing 171 km river channel maintenance of the current standards for the state-ⅢRiver Waterway, shipping rate of 98% guarantee and safeguard fairways scale of 2.5 m×80m×500m (deep×wide×bend radius), the river catchment sufficient volume, vessel density, transport peak. Zhaoqing them to the capital about 134 km river channel fine natural conditions, abundant water depth, width affluent, bending radius, but Jieshou capital about 37 km to reach incoming water and sediment conditions complex, wide river, Shoal connected reef clouds, since Under the order, and there are Dayuanyong Qicha and Liaotang. The Xijiang River is the development of shipping bottleneck in order to meet the needs of economic development basin urgently requires them to improve the situation, so as to improve navigation conditions improve fairway grade.Jieshou choice Waterway Regulation programmes, from the sediment, hydrology, river bed evolution analysis and the evolution of river training works for a series of pre-start with a summary of proposed damming, dredging and blasting combination of means, in order to increase velocity and improve the flow embrace Sand capacity. Rectification plan was finalized, and then through the beginning of a physical model test on the programme selection and optimization pilot test to determine the recommended programme, the final test bed through the forecast after the implementation of the programme recommended regulation effect, in order to rectify next Jieshou Beach provide guidance to the Regulation project...