Abstract:The paper analyzes the importance of the proposal of comprehensive experimental zone for development of international shipping, researches the guiding principles and strategic objectives, probes into its area layout and policy system combining with regional realities, and puts forward countermeasures for the construction of comprehensive experimental zone for the development of international shipping. It is pointed out that the concept and policies of comprehensive experimental zone for the development of international shipping need continuous innovation and development, to meet the new demand of construction of international shipping center.

Abstract:Overviewing the universality of tidal wave transformation in the estuaries with tidal barriers constructed, and different factors influencing the transformation before and after the construction of barriers, this paper established the generalized model and expounded the theoretical basis of model design and the model layout.Simulation study on the phenomenon of tidal wave transformation with different length of irrigation channel through generalized physical model was carried out, and several conclusions were drawn.The length of irrigation channel influences tidal wave transformation obviously, including the difference of tidal process under various conditions,different trends of tidal range along the irrigation channel and the change of velocity ratio of flood and ebb tide with the length changing.

Abstract:TThe non-linear analysis of the sheet-pile wall is given by geotechnical finite element software,PLAXIS, the deformation, the moment, the shear force distribution and the soil pressure distribution of the sheet pile are obtained, and the settlement and stress condition of foundation soil after the sheet pile wall under load are also analyzed. With the comparison of the elastic line method and the“m”method, the accuracy and reliability of PLAXIS is verified. The research shows that the finite element method of PLAXIS is reasonable.

Abstract:This paper discusses the effects of different degrees of load on charge passed through concrete by ASTM C1202 method. The results indicate that the charge passed through concrete after different levels of compressive loading has different growth which shows a quadratic curve. The mineral admixture can significantly reduce the permeability of concrete, the affect on charge passed through the mineral admixture modified concrete is less than that of the normal concrete. As the load increases to a certain level, the evaluation criteria of charge passed is not suitable for evaluating these species. Moreover, the chloride-ion migration amount of species after loading can be considered as one quantitative index of concrete permeability.

Abstract:The experiments about the stone chip with high stone powder (the content of stone powder is larger than 10%) as a substitute of river sand were carried out. The results showed that the stone chip was used in preparing the C30 and C40 concrete by adding the usage of cementitious material, adding the usage of the water reducer, and adjusting the ratio of water to cementitious material and the fine aggregate percent of total aggregate.Such concretes were prepared under the condition that the particle larger than 4.75 mm in the stone chip was substituted the stone in part and the particle smaller than 4.75 mm in the stone chip was substituted the river sand in part. The grade of the stone chip had a greater influence on the workability and the strength of concrete, and the favorable grade stone chip should be used in preparing the concrete. The engineering application showes that the economic chip concrete can be made by controlling the quality of concrete during the batching, transporting,handling, and curing.

Abstract:Combining an example of an approach bridge engineering of a marine terminal, this paper describes the mix ration design and demands of self-compacted concrete with big fluidity, high strength and micro-expansion and slow coagulation applied to the large & multiple-span concrete-filled steel tube arch bridge.It also expounds the construction method, technological process and construction process control for the concrete pumping. The application effect revealed that using the steel tube concrete and construction method described above, we can effectively avoid the common problems such as the concrete segregation, plugging pump, steel tube blasting, concrete unevenness or incomplete densification.

Abstract:Due to the development trend of marine engineering and the limitation of the existing research results, to obtain the concrete destruction rules and influence factors in open sea conditions, the offshore field exposure station was established, the site-selecting principles and site characteristics of which were expounded in this paper. The exposure test and research results were of great significance for enhancing the durability of concrete in open sea from the design, maintenance and management, and ensuring the safety and long-term durability of offshore large infrastructures.

Abstract:The problem of karst is often encountered in constructions of hydropower projects in China.Based on the geologic survey data and analysis of the geologic environment, rock, and geologic structure, this paper discusses the distribution pattern and the genetic mechanism of karst. The result indicates that the karst above the left dam abutment is the result of internal and external force coupling effect, and also one of the typical modes of karst formation in northern China. Considering the importance of the spatial location of the karst, this paper discusses the seepage coefficient and studies the seepage problem and the anti-seepage measures according to the field pump-in test. The research result provides a reasonable basis for the selection of the karst anti-seepage scheme.

Abstract:A three-dimensional finite element composite pile foundation model is establishedbasedon soil’s elastoplasticity and contact properties between piles and soil by the finite element software to calculate and analyze systematically the changing trend of settlement and differential settlement under different loads, pile length, pile diameter, and pile space, and obtain the conclusion which may serve as a reference for the design.

Abstract:his paper presents the design contents, main design conditions and other basic information of hydro-structure design for a 300 000 DWT large-scale bulk cargo dock in Zhanjiang. By analyzing the structure characteristics of the bulk cargo dock, the paper determines the selection of pile type, and proposes that the optimal layout of foundation piles is the key factor for the optimization design. Furthermore, the paper researches the structural optimization design of the 300 000 DWT large-scale bulk cargo dock by analyzing and comparing the dock’s stress conditions with different bent-spacings.

Abstract:This paper summarizes the theory and practice research on the fourth generation port, and defines and analyzes the concept and features of the fourth generation port based on the location and the functional factors. It is considered that the fourth generation port has broken the location limit and become a network harbor group, which is a collection of port, port industry and port new city industrial and urban function, with an integral function of port, industry and city; The fourth generation port has expanded the traditional function, and can provide integrated manufacturing, logistics, information, trade and financial services. The study on the fourth generation port helps to fully recognize and understand the development trend of the future ports, which has an important practical significance for the construction of ports.

Abstract:Taking the Yangtze River delta ports as the research object, we analyze the 2005—2009 port average concentration rate and cargoes’space concentration degrees in the Yangtze River delta by Hirshmanm- Herfindahl index analysis, and reveal the transfer of various cargoes within the ports of the Yangtze River delta from the comparative advantage and absolute comparative advantage. It is concluded that the concentration degree of all cargoes is in the downward tendency, and cargoes are listed as follows concerning the centralization degree from high to low: container, oil, gas and its products, metallic ore, mine ore, coal. Meanwhile, the container conglomeration effect of Shanghai port is strengthening, and the bulk is spreading to other ports rapidly; Leading by the Ningbo-Zhoushan port, the conglomeration effect of Zhejiang province is further strengthened; Jiangsu province is undertaking the transfer and upgrading of the port structure.

Abstract:According to the soil parameters provided by the survey report and the structural construction drawings of a one hundred thousand-ton coal wharf in Zhuhai, this paper establishes a three-dimensional finite element model of the coal wharf, including slope model with piles and slope model without piles. The paper firstly analyzes the slope stability of the two models and gives each model’s safety factor, using the theory of strength degradation FEM, and then, further studies the impact of pile foundation on slope stability. The model used in this paper is complex, both geometrically and mechanically, for example, to simulate the real situation as much as possible, the Drucker-Prager and Mohr-Coulomb equivalent area circle yield criterion is used in the slope soil,and the surface-to-surface contact model is used in the pile-soil interface. The paper also figures out the plastic zone and displacement field in both natural slope and pile foundation slope, which may provide references for slope stability analysis of high-piled wharf.

Abstract:To adapt to the development of large-scale container ships, the wharf handling efficiency needs to be improved. Combining with the bay handling characteristics, a new yard stacking strategy is proposed, which is to stack the import and export boxes in the same yard-bay. The paper designs the shore and yard handling technology, which is loading and unloading the container in the same bay and at the same time. Using the system simulation technology, several simulation models are established, and the stockyards’equipment selection is researched. The paper can offer a technical support for the container terminal implementation of within-a-bay handling.

Abstract:According to the topography, hydrology and geological conditions of the chosen site a heavy cargo wharf of a power plant in Chongqing Wujiang river, we propose a new type of wharf on the upper Yangtze river, with a new layout of“land work platform plus crane installation platform plus berthing pier”, heavy cargo handling with “vertical lifting and 360毅rotary loading and unloading”, and fixed berthing pier structure on the lock, which can meet the demands of berthing and handling operations in Wujiang river basin of 20m’s maximum range of stage and 5m’s maximum stage fluctuation within a day, and solves the difficulties due to the poor condition of the back-up land and the largest lifting height of 73 m, etc. It may serve as a reference for the design of inland wharves with a large range of stage and restricted back-up land conditions.

Abstract:The ship mooring force acting on the mooring dolphin of open crude oil terminal is one of the key design parameters of the structure. To counter the inconsistency of the selection principles adopted in different projects of the water transport industry, we propose to consider comprehensively factors including the calculated mooring force, strength design of the releasing hook, terminal safety conditions, and the impact on the structure,etc. We also illustrate the importance of a careful analysis and selection of the mooring force acting on the structure by analyzing the engineering case.

Abstract:The fatigue reliability of light-wharf structures which are affected by wave loads and ship impact forces is studied by wave spectrum analysis theory and the theory of linear cumulative damage. Based on the large displacements characteristics of light-wharf structures, we calculate the impact forces under consideration of the light-wharf’s stiffness. The wave load is calculated by the Airy Wave Theory and the speed of water particles is calculated by the linear Morison Equation. The results show that the wave loads and impact forces have remarkable effects on the fatigue reliability of light-wharf structures, and the combined effect of wave loads and impact forces should be considered when calculating the fatigue life.

Abstract:There are mainly three types for the blending system, i.e. ground-style, underground tunnel-style and silo blending system, each of which has its own characteristics and scope. The port-coal blending system by silos is the most advanced one up to the present which is suitable for the building in the area with a variety of coals, frequent turnover and diverse quality. This paper discusses the key technology and restricted conditions of the port-coal blending system based on the construction experience of EMO port-coal blending system built in Rotterdam port and port-coal blending system built in Lianyungang port. Moreover, according to the components and construction of the coal blending system, this paper describes the advantages and social significance of coal blending systems built in the port, and points out matters of attention aduring the construction of the port-coal blending system.

Abstract:Based on the design of 400 000 DWT ore quay in Dongjiakou port area, this paper analyzes the phenomenon and reasons of broken cables of some line type quays. By physical and numerical model tests on 400 000 DWT and 150 000 DWT ships, this paper presents a new type of mooring style by increasing 30 m for the cross cable, by which, the forces of the cross cable decreases more than 30%, while the bow stern cable increases slightly, the pour cable increases and the pour cable decreases within 15%. Using the new mooring style, the force on each cable becomes more uniform and reasonable, and the cable breakage is avoided.

Abstract:Eleven container termainals of 70,000~100,000 DWT will be built at the container operation area of Chuanshan port area at Ningbo-Zhoushan port, and then roads’collection and distribution capacity will reach 7 million TEU, then the operation area will connect well with the Chuanshan port area highway, and thus the port services will be improved. Based on the analysis of the collection and distribution in Chuanshan port area, we forecast the highway traffic collection and distribution volume. According to the general plan layout of the port area, the ground condition of the and the surroundings, and the stipulations in the Design Code for Highway Alignment, we determine the connection scheme of Chuanshan container operation area and Chuanshan port area highway.

Abstract:The third pPhase of Guangzhou seaward channel project and auxiliary projects is a momentous project, so it is necessary to study the effects on the sediment transport and evolution of flats and channels of the Inner Lingdingyang before the implementation of the project. Base on the calculation and analysis by introducing 2D numerical model of tidal current and sediment, it reveals that the effects will primarily occur in the Jiaomen extending riverway, the west shoal and channel of the Inner Lingdingyang, and less effect will occur in the upper section of the extending riverway of Jiaomen and the water areas to the east of Fuzhou riverway and Longxue island. From the long-term view, the evolution in Fuzhou riverway, Jiaomen extending riverway, and the inner Lingdingyang will not be serious, scouring and silting speed will slow down gradually, and the structure of three shoals and two channels will keep unchanged.

Abstract:Based on the Xiangjiang Tugutang hydro-junction project, we introduce the improvement measure of flow conditions at the entrance of lower approach channel in the narrow continuous meandering river by the diversion pier. According to the observed data and current phenomenon, we analyze the influences of arrangement types and layout angles of diversion piers on the hydraulic parameters such as the angle of inclined flow at the entrance area, transverse velocity and reflux, etc., and summarize the improvement laws of flow conditions at the entrance of lower approach channel in the narrow continuous meandering river by the diversion pier.

Abstract:In order to reveal the relationship and mechanisms of inland water transport and the regional economic growth, we established the autoregressive distributed lag model and VAR model, and conducted the impulse response analysis according to the Chongqing “ inland water transport-regional economic”composite system data during 1985—2009. The results show that there is only a one-way causal relationship between inland water transport development and regional economic growth; The development of inland water transport has a strong stimulating effect to the regional economic growth; The development of inland water transport has a strong regional economic growth stimulating effect, which will be more significant in the long term; The regional economic growth cannot spontaneously promote or even inhibit the development of inland water transport.

Abstract:Based on analysis of changes and its impact on navigable conditions of morphology evolution in Zhenyang reach, the proposed idea of the river channel regulation is put forward. The regime changes are mainly reflected in the inlet split ratio adjustment and the mainstream of the local thalweg changes. All of these have led to the river channel conditions have a significant adverse impact. In response to these, proposed idea of channel regulation is put forward. It is to strengthen control of the important beach and coastline which have influence of channel conditions, to stabilize beach slot pattern, to control or adjust the inlet diversion structure, and to maintain the current relatively favorable channel conditions. Especially, for those reaches may be a shallow, it must take necessary engineering measures to narrowed appropriate shallow section and increase the flight capacity tank washing, in order to improve channel scale.

Abstract:Taking the navigation facilities located along the Yangtze River as an example, this paper analyzes the feasibility and practicability of electronic atlas for waterway facilities in the waterway information management. Starting from the software of electronic atlas making, the paper describes the TeleAtlas software packets and its dominances in application into making the multimedia electronic map. Based on the analysis about the electronic map technologies and the data characters of navigation facilities of the Yangtze River, we probe into some key technologies concerning design of the electronic atlas, including data processing, content designing, checking, and publishing of general design, and model, strategies, and methods in logic design of electronic map. By exploring the application of multimedia electronic map technologies into the electronic waterway map design, we try to find a new mode for the information management of waterway facilities.

Abstract:The design annual navigable ability of Sanbao lock is 8.5 million tons, but the actural lockage quantity is over 30 million tons. The scheme comparison is conducted among the increase of effective dimensions of lock, improvement of waiting conditions and newly construction of locks to search for the way of increasing the lockage capacity.

Abstract:The Three Gorges lock is a five-step lock with a higher water head. Since the two adjacentlined locks and the ship lift share the downstream approach channel, the hydraulic problem of the lock became the most difficult among the world’s existed locks, and is one of the key problems of lock design. Based on the scientific research results, with the rational arrangement of the water-carriage system and optimization of operating parameter of the valve, we overcame the problems of waiting ships in the first lock in the four-run mode, and realized the working condition with the head rising from 45.2 m to 47 m. Thus the five-run mode was transformed to four-run mode, and the lock capacity was effectively improved.

Abstract:Based on the field test data of high replacement ratio sand compacted pile in soft clay，we analyzed the characteristics of single sand pile and the consolidation character of soft clay among the piles, and derived the expressions for the stress ratio of pile to clay, the bearing capacity of single pile and the clay among piles, which can be used to calculate the bearing capacity of the composite foundation and the result may serve as a reference for the engineering design.

Abstract:When structures are built on soft soil, the bearing capacity can be hardly satisfied as the soil has the characteristics of high water ratio, high compressibility and poor shear strength. However, the bearing capacity can be improved through structure itself by taking full advantage of the interaction between the structure and soil. Firstly, an experiment is carried out to compare the measured value of the experiment with that of the Plaxis simulation. The results show that the Hardening-Soil model is able to simulate the bearing capacities of the box and bucket foundation on soft soil. Then, the ultimate bearing capacity of the structure on one layer soil and stratified soil are studied. The influence factors of structure form, structure dimension, parameter of soil and the thickness of the layer are analyzed, and modified formulas of quadrate, circular and strip box and bucket foundation are concluded. Finally, using FEM program Plaxis, the paper establishes a numerical analysis model for the box and bucket foundation of Tianjin harbor breakwater extension project.

Abstract:Caofeidian general wharf is the first caisson gravity wharf of the Caofeidian area, and there isn’t any referential data for the wharf’s sedimentation control. The focal point for the construction of 100 000 DWT gravity wharf lies in the settlement control. According to the geologic condition of Caofeidian port area, we took a series of measures including optimization of design for the foundation bed, caisson and backfilling materials, strict control for the construction quality and guidance to the construction according to the monitoring results, and the sedimentation was controlled effectively therefore.

Abstract:Applying the simplified model and changing the permeability coefficient of geotextile at model openings, this paper simulates the actual changes of underground water level at treatment interior area during soft ground treatment by vacuum preloading based on the laboratory test. The test results show that the underground water level declines during vacuum preloading. Fitting the curve of H-(-lgK), it is concluded that the less the soil's permeability coefficient is, the greater the water level declines. The test reveals that we need to consider the water supply at the reinforcement area by surrounding groundwater and draw up the new standards of seal design to the surrounding reinforced area.

Abstract:The paper mainly introduces the principle of ground improvement by impact rolling, features of construction technology and consolidation effect. Experimental studies show that the impact rolling compaction not only achieves the same effect as or better effect than the general compaction, but also significantly reduces the construction time and cost. Therefore, it has a broad application prospect in ground treatment of port engineering.

Abstract:Combining with the construction practice of sand piles in the connecting structure of the West Port Terminal Project at Yangshan Deep Water Port, this paper analyzes the construction technology of sand piles,discusses the key control points, points out the necessity of the radar stableness, emphasizes the significance of the tip treatment of sand piles and quality control of pile uplifting. According to the quality test of sand piles and the current stability of the revetment, this paper evaluates the effect of soft soil foundation improvement qualitatively,and makes a prospect on the technology improvement in the future.

Abstract:Due to the influence of the Three Gorges dam, the water stage of the hydraulic wharf engineering of Nanjing port Longtan area was unusual and thus the smooth completion of project during the scheduled period can’t be guaranteed. So, unusual measures shall be taken. This paper introduces the reasonable organization of construction under abnormal stage. By increasing the construction labor and turnover materials and machines for the underwater buildings before the next tide flood, we finished the construction of wharf’s underwater buildings.

Abstract:In wharf construction, since the covering layer of strata is very thin due to the affection from its surrounding geologic condition, the rock-socketed filling pile has been widely applied. The judgement of the terrane’s quality of rock-socketed filling pile is the key in the design, construction and supervision. This paper expounds the judgement of the terrane’s quality during constrution of rock-socketed filling piles, and proposes countermeasures which have been applied to the real project.

Abstract:The funnels is the key part for the formation of bulk arch and congestion in the transport process.Because of the difficulty to precisely survey the physical features for different kinds of bulk, some anti-arch measures are necessary besides the theoretical requests for the inclinational angel and aperture in the design of the funnel. This paper selects the proper anti-arch measure and makes the bulk conveying fluently according to the requests of bulk physical features and funnel functions after analyzing some approaches such as mechanical stirring, atmosphere vibration, mechanical vibration, optimization of the funnel structure and adding liner in the funnel. The continuity and reliability in the process of bulk conveying and transport can be guaranteed by this anti-arch measure.