随着国内旅游航道建设的不断推进,如何将绿色航道理念深入到旅游专用航道的规划、设计、施工建设及养护全过程,是绿色交通建设重要议题.本文结合全国首条以绿色航道命名的"锦江绿色航道项目"工程实践,提出新的绿色旅游航道建设理念、建设目标,系统性地阐述了绿色旅游航道在全生命周期内,各阶段的关键建设技术与生态环保措施.

为推进绿色基础设施创建、生态廊道构建,推动旅游航道发展,结合全国首条以绿色航道命名的"锦江绿色航道项目"工程实践,提出"生态优先、绿色发展、以人为本"的绿色旅游航道建设理念,"节能低碳、资源节约、生态环保、航景融合、安全畅通、智慧建养"的绿色旅游航道建设目标体系,"生态、旅游、休闲"为特色旅游航道,构建贯穿全生命周期的绿色旅游航道顶层建设理念体系.研究成果可为交通运输部门推动旅游航道绿色发展管理决策提供参考.

近年来,以使用数字化的知识和信息为关键生产要素,以数字技术为核心驱动力量,以现代信息网络为重要载体,通过数字技术与实体经济深度融合,不断提高经济社会的网络化、数字化、智能化水平,加速重构经济发展与治理模式的新型经济形态——数字经济不断蓬勃发展.在数字经济浪潮的强烈冲击下,数字化驱动正成为破解各行各业发展瓶颈的"密钥",成为加快各个行业转型与高质量发展的必然路径.

以设计单位为龙头开展EPC总承包业务,具有技术服务,工程质量、进度控制、造价控制的显著优势.通过分析大型设计集团开展EPC总承包项目管理中,存在体制缺陷、HSE管理人才缺乏、施工管理经验不足等主要问题,以嘉鱼综合码头EPC总承包项目的探索和实践为例,提,出转型中的大型设计集团做大做强EPC总承包业务,必须进行体质改革,加大人才培养力度与改善引进人才机制提升项目管理水平.

目前带式输送机过堤方式主要有钢引桥立交跨堤方案和涵洞平交方案。本文在分析比较这两种过堤方案优缺点的基础上，提出了一种新型的过堤方式——全封闭钢管+圆管带式输送机的穿堤方案，并结合湖北沙隆达股份有限公司热电煤码头工程，着重介绍了全封闭钢管+圆管带式输送机穿堤的总体布置和结构设计，以供同类工程借鉴。

The vertical foundation stress and horizontal friction of the higher level wharf is taken as an overload,which is converted into the earth pressure and acting on the lower level wharf.Based on the reliability theory and combining with the project example of Naxigou wharf,we analyze the most disadvantageous condition combination and the worst failure mode of the multi-stage gravity wharf.The results show that the anti-sliding stability has a minimum reliability when water-level is the same as the height of the junior and the greater wharf among various kinds of function combinations,which is the controlling condition.

In this paper,A 3 stepped geogrid reinforced earth retaining wall has been engaged for studying the mechanical character which is effected by the creep deformation of the belts.In the proposed method,nonlinear creep behavior of both filling soils and geosynthetics used for reinforcements is taken in account by using the rheological models of visco-elasto-plasticity and nonlinear visco-elasticity respectively.Additionally,the interaction effects among reinforcement,the fills,and the panel are rationally considered with the Goodman's joint element model.The layer-by-layer filling process of backfills of the retaining wall is also simulated.Nonlinear computations based on 2-D FEM are numerically implemented by hybrid algorithm in which the incremental scheme is incorporated with iteration based on the initial-strain.The reliability and reasonability of the proposed method are verified through a comparison of the computed results with experimentally-measured data and other conventional methods.

Reinforcement soil technology has been widely applied in road,marine,railway and water conservancy projects,creep features and endurance of reinforcement soil material in project structure has long been the focus of engineers.Through series deformation test to geogrid,deformation feature of geogrid under long term load is concluded,i.e.the deformation ratio is in logarithm relationship with time,and in "S" curve relationship with strain.This would provide important reference to reinforcement soil structure design & calculation,application of reinforcement material in projects.

In order to study the plastic deformation of polypropylene geobelt, which is used to reinforce earth engineering at present, load tensile tests have been done respectively. The relationship equation of stress, elongation and time is found out by fitting the results of experiment.

文章中采用单位力法对内河大水位差架空直立式集装箱码头可能出现的荷载工况进行了有限元计算,并采用MATLAB软件编程对计算结果进行分析组合,得到了计算结构各主要构件控制内力的最不利作用效应组合情况,提出了内河架空直立式集装箱码头结构计算的作用效应组合方法.