Shandong Survey and Design Institute of Water Conservancy

Jinan, China

Shandong Survey and Design Institute of Water Conservancy

Jinan, China
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Qi L.,Shandong Electrical Power Engineering Consulting Institute Co. | Shi J.-Y.,Hohai University | Hou Q.,Shandong Survey and Design Institute of Water Conservancy
Yantu Lixue/Rock and Soil Mechanics | Year: 2011

As an important part of load transfer behavior and settlement, the research for pile penetration into cushion would improve and perfect the theory of composite ground. There are only few studies of penetration. We analyze the shortcomings of existent calculating methods for penetration, and obtain the more rational method. Finally, this method is compared with the existent methods and model experimental results; it is shown that this method is reasonable and feasible.


Dedong L.,Shandong Survey and Design Institute of Water Conservancy | Lei Z.,Hohai University | Juan Z.,Yellow River Investigation and Design Institute of Shandong | Jinyan L.,Bengbu Survey and Design Institute of Water Conservancy
Journal of Convergence Information Technology | Year: 2012

Ecological bank-protection has gradually become a sort of popular bank-protection technique, for its fine harmonization with surroundings, also its high competence for ecological restoration and water-quality purification ability. Various ecological bank-protection methods emerge with different materials, structure-style and multi-performance. How to select the optimal ecological bank-protection method for a given channel is a complex semi-quantificational systemic decision problem. The purpose of this article is to develop a hierarchy selection model with 5 ecological bank-protection schemes and 7 decision criteria, using the analytic hierarchy process (AHP) for optimal ecological bank-protection method of channel in plain area. For a given plain-area channel, the model results indicate that the criteria of bank-protection including ecological restoration capacity, support capacity and service life are most important in decision-making process. Additionally, ecological geotextile bag bankprotection is determined as the optimal bank-protection selection, since it has combination advantages over other 4 bank-protection methods. The less optimal methods are respectively gabion, tree stump, ecological concrete and 3-D geonet bank-protection in order. Model results better reflect the actual needs of channel bank-protection in plain area. The hierarchy selection model can be used as a tool for selection of other kind channel bank-protection.


Yang L.Q.,University of Jinan | Qin B.,Shandong Survey and design Institute of water Conservancy
Applied Mechanics and Materials | Year: 2014

It is rather complicated to predict the characteristics of strata response to mining operation in thick seams. However, a comprehensive evaluation of ground behavior is a prerequisite for maintaining efficient production, especially when the top-coal-caving method behind the face is applied. An analysis of the conditions of top coal has revealed that a 1.8m thick layer of coal just above the shield supports is well fractured. However, a 4.2m thick layer of coal above the fractured part is either not fractured or is fractured in the form of large blocks leading to obstruction of windows of shields during coal drawing. It is concluded that, in order to decrease dilution and increase extraction ratio and efficiency of operation, top coal should be as uniformly fractured as possible. Hence, an efficient and continuous coal flowing behind the face can be maintained. © (2014) Trans Tech Publications, Switzerland.


Yang L.Q.,University of Jinan | Qin B.,Shandong Survey and Design Institute of Water Conservancy | Ma J.,University of Jinan
Progress in Civil, Architectural and Hydraulic Engineering - Selected Papers of the 4th International Conference on Civil, Architectural and Hydraulic Engineering, ICCAHE 2015 | Year: 2016

Nansi Lake is a famous shallow lake in China. It is very important to know the water level and runoff of different sections at different times for engineer. A new calculating method has been proposed, which is called three lakes and two rivers model. Because Nansi Lake is divided into three parts, western part, lake surface, and eastern part. There are two narrow rivers to connect the three pats. In the model, water balance equations are used to instead of continuity equations. The auxiliary curve is used to instead of momentum equation to reflect the river channel storage volume and the approximate relationship between outflow and inflow. Iteration formula is provided in the paper. The numerical calculation methods were used to verify that two rivers and three lakes model is of high precision and the calculation is simple and practical. © 2016 Taylor & Francis Group, London.


Qin B.,Shandong Survey and Design Institute of Water Conservancy | Yang L.Q.,University of Jinan | Ma J.,University of Jinan
Progress in Civil, Architectural and Hydraulic Engineering - Selected Papers of the 4th International Conference on Civil, Architectural and Hydraulic Engineering, ICCAHE 2015 | Year: 2016

Groynes are the hydraulic structures that have functions of protecting bank erosion and maintaining water level by deflecting flow direction. In this paper, the research for reappraising groynes as a nature-friendly river training structure and for making full use of groynes to improve ecosystem have been introduced. By projection and experiment study, flow pattern and formation of source and sink have been studied. The form and size of eddy according to conditions of groynes are main factors causing in particularly wake vortexes in a front edge of groyne. The impermeable groyne was remarkably larger than the permeable one and the permeable groyne showed little change against varying permeability, showing overall decrease whereas permeability increased. The scour area was found to be the biggest in the impermeable groyne. © 2016 Taylor & Francis Group, London.


Xue-shan C.,Hohai University | Jun-ping Y.,Hohai University | Gui-lin H.,Shandong Survey and Design Institute of Water Conservancy | Ying-hao L.,Shandong Survey and Design Institute of Water Conservancy | Zong-ze Y.,Hohai University
Geotextiles and Geomembranes | Year: 2015

Air bulging under a geomembrane is a problem in reservoirs that are lined with geomembranes. Three essential conditions influence the air bulging under geomembranes: earthworks construction, rapid decrease in reservoir water level, and rising of the underground water table for a geomembrane liner without defects. The theory of unsaturated soil mechanics is proposed to analyze the mechanism of air bulging under geomembranes by using a one-dimensional method. In the absence of a liner, no air bulging is produced because any air could be squeezed out easily. However, air pressure could increase in the presence of a liner because the pore air is isolated from the atmosphere. Whether water infiltration is caused by the rising of groundwater table or soil is compressed, pore air volume is reduced in the unsaturated soil, and the pore air pressure increases. Air bulging could be produced if the pore air pressure is greater than the load over the geomembrane. Then, the pore air pressure is computed with the two-dimensional consolidation method of unsaturated soil. A small-scale in situ test of the Datun reservoir was performed to analyze the air bulging phenomenon under the geomembrane in Shangdong Province, China. The earthworks construction and the rapid decrease in reservoir water level have insignificant effects on air bulging under the geomembrane because the pore air pressure under the geomembrane depends on the compression strain of the pore. The increment of the pore air pressure is always low because of less compression strain. The rise in groundwater tables has a significant effect on air bulging under the geomembrane because a linear relationship exists between the pore air pressure under the geomembrane and the increased amplitude of the underground water level. © 2014 Elsevier Ltd.


Li P.,Xi'an University of Technology | Li Z.,Xi'an University of Technology | Li Z.,CAS Institute of Soil and Water Conservation | Zheng L.,Shandong Survey and Design Institute of Water Conservancy
Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering | Year: 2010

Relation between water erosion dynamics and sediment yield is one of the key problem in soil erosion prediction. In this study, flow dynamics (inculding flow velocity, shear stress and energy consumption) were studied by runoff scouing on smooth flume and soil flume. Results indicated that sheet flow on smooth slope moved in roll waves, flow velocity fluctuated along the flume, and increased with runoff discharge and slope gradient. Runoff shear stress, runoff energy consumption and sediment transportation of unit width runoff increased with runoff discharge, and changed in parabola shape with slope gradient, which indicated the existance of critical slope gredient. In this experiment, critical slope gredient was between 21-24°. Further analysis showed that linear relation existed between sediment transportation and runoff shear stress, runoff energy consumption of unit width runoff.


PubMed | Shandong Survey and Design Institute of Water Conservancy, Nankai University and Tianjin University
Type: | Journal: Environmental science and pollution research international | Year: 2016

To identify the effect of chlorine dosage in prechlorination on the formation of disinfection by-products during drinking water treatment process, the relationship between chlorine dosage and concentrations of THMs and HAAs was analyzed. Furthermore, the variation about the ratio of THMs/HAAs was also analyzed. The results indicated that concentrations of THMs and HAAs would rise with the increase of chlorine dosage, and TCM was the main product of four THMs, while DCAA and TCAA were the primary products of five HAAs. Moreover, the ratio of THMs to HAAs rose with the chlorine dosage increase. Thus, chlorine dosage in prechlorination had a significant impact on THMs and HAAs and should be controlled effectively.


Zhu F.,Shandong Survey and Design Institute of Water Conservancy | Du P.,Shandong Survey and Design Institute of Water Conservancy | Xu Z.,Shandong Survey and Design Institute of Water Conservancy
Advances in Science and Technology of Water Resources | Year: 2013

In order to hoist a pumping unit efficiently, and to open-close and overhaul gate efficiently, a rotation pitch point and the gate hoist with turning mechanism were designed. Based on a static load test with 1.25 times rated load and a dynamic load test with 1.1 times rated load, the stress-strain of the portal frame was studied. The results show that the strength and stiffness of the portal frame of bidirectional and turning gate hoist can be satisfactory. Transferring the rail is a smooth operation and meets multifunctional requirements, which increases the utilization of gate hoist and reduces the project cost.


Dedong L.,Shandong Survey and Design Institute of Water Conservancy | Zhu R.,CAS Institute of Geographical Sciences and Natural Resources Research | Jinyan L.,Bengbu Survey and Design institute of water conservancy | Juan Z.,Yellow River Investigation and Design Institute of Shandong
International Journal of Advancements in Computing Technology | Year: 2012

Hydrographic zones partitioning is the critical issue in hydrological station network planning and a hydrographic zones partition method that can divide the hydrographic zones objectively is desirable for any region. As a kind of pattern classification problem, the hydrographic zones partitioning of Shandong province is achieved by the self-organizing feature map neural network (SOFM network) which has been successfully applied to pattern classification problems. Based on 50 hydrological stations and 8 basic factors which reflect the land surface and hydroclimate characteristics, Shandong province is automatically divided into 2 hydrographic zones by SOFM network. The average watershed characteristics of each sub-zone are consistent with the local terrain and surface conditions. And based on the partitioning results of SOFM network method, the maximum peak flow and the accuracy are analyzed which are proved reasonable and achieve pass rate of 82%. Which indicate that it is an effective method to use SOFM neural network to divide the hydrographic zones.

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