通过概述桂平市木薯产业发展现状，总结产业发展存在问题，并在全面分析桂平市发展木薯产业的综合因素的基础上，提出加快桂平市木薯产业发展的合理化措施。

By outlining Guiping cassava industry development status, summary of industrial development problems, and in the development of a comprehensive analysis of Guiping cassava industry on the basis of a combination of factors, to speed up the development of cassava industry Guiping rationalization measures.

文章结合广西桂平二线船闸建设项目航道交通大桥工程实例,阐述了桥梁高标号混凝土泵送施工的工艺流程及要点,并提出了相应的施工质量控制措施。

Combined with the actual engineering case of Waterway Traffic Bridge in Guangxi Guiping second-line shiplock construction project,the article described the technical process and keypoints of bridge high-grade concrete pumping construction,and proposed the corresponding construction quality control measures.

根据2003—2012年水质监测资料,采用秩相关系数法对郁江、黔江和浔江广西桂平段水质变化趋势进行分析。结果表明,黔江和浔江水质呈明显好转趋势;郁江水质呈好转趋势,但不明显。提出了继续加强水污染防治工作的建议。

According to the water quality monitoring data from 2000 to 2012,the water quality trendsin Guangxi Guiping section of Yujiang River,Qianjiang River,and Xunjiang River were analyzed using Spearman rank corre-lation coefficient method.The results showed that the water qualities of Qianjiang River and Xunjiang River were significantly better year by year.However the water quality improvement of Yujiang River was not significant.Wa-ter pollution prevention and control should be strengthened.

结合南宁至广州铁路桂平郁江钢桁斜拉桥工程实例，对其正交异性整体桥面系的力学行为进行分析，得出此类结构的一些规律和结论，可供类似工程借鉴和参考。通过建立该桥整体空间有限元模型，分别采用空间板壳单元，模拟正交异性整体桥面系各构件、受拉空间杆单元模拟斜拉索、空间梁单元模拟桥梁其他构件，用空间有限元方法进行桥面结构的力学行为分析。结果表明：正交异性桥面结构整体性能好，各组成部分受力规律性较强；钢桁梁节间范围内布设多道次横梁并采用小刚度纵梁的结构体系可以有效减弱桥面结构参与主桁的共同作用，使得桥面结构应力水平不高、受力均匀，符合结构受力合理的特点；混凝土道砟槽板拉应力水平较高，应采用高配筋进行控制。

The main bridge of the Guiping Yu River Bridge is a steel truss girder cable-stayed bridge with integral ortho-tropic deck system. In this paper, the mechanical behaviors of the deck system have been analyzed by using the finite element method. The deck systems are simulated by spatial plate element and shell element. The cables are stimulated by spatial tensile truss element. Other girder members are stimulated by beam element. The results show that the whole performances of the orthotropic deck system are good;the regularity of each component’s force is clear;the deck struc-ture of using multiple transverse beams and small longitudinal beams within each internode can effectively weaken the in-teraction of deck structure and truss girders to makes the stress of bridge deck structure not high and well-distributed, and high reinforcement ratio for concrete ballast plate should be adopted to control its higher tensile stress.