Drainage System Optimization of Powerhouse Foundation Pit in Construction Period for Jinnah Hydropower Project

2012 ◽  
Author(s):  
Zhenzhong Shen ◽  
Lei Zheng ◽  
Xiaogang Ma
Keyword(s):  
Drainage System ◽  
System Optimization ◽  
Hydropower Project ◽  
Foundation Pit ◽  
Construction Period

Analysis of Construction Monitoring of Jinzhou Underground Mall Excavation

2013 ◽  
Vol 848 ◽  
pp. 74-77
Author(s):  
Jin Kui Li ◽  
Yue Bo Fan ◽  
Yi Bing Wang
Keyword(s):  
Environmental Conditions ◽  
Horizontal Displacement ◽  
Ground Settlement ◽  
Foundation Pit ◽  
Construction Monitoring ◽  
Construction Period ◽  
Surrounding Environment ◽  
Information Construction ◽  
Real Time Information ◽  
Time Information

Cause the deformation of soil around the foundation pit excavation, have a great impact on the surrounding environment. At the same time, the excavation is limited by surrounding environmental conditions. Relying on the Jinzhou underground mall excavation monitoring project, after monitoring the ground settlement and horizontal displacement of pile top and measurement during the construction period, we realize the real-time information construction ,safe and smooth construction in the process of construction. And we conclude some useful conclusions, which can be a reference for similar engineering and reference.

Three-Dimensional Seepage Analysis and Seepage Control System Optimization of a Hydropower Project

2012 ◽  
Vol 468-471 ◽  
pp. 2433-2436
Author(s):  
Wen Ting Zhan ◽  
Qing Xu
Keyword(s):  
Control System ◽  
Three Dimensional ◽  
System Optimization ◽  
Field Analysis ◽  
Hydropower Project ◽  
Seepage Field ◽  
Seepage Analysis ◽  
Dam Foundation ◽  
Seepage Control ◽  
Water Head

The study is conducted for the 3-D seepage field analysis and the seepage control measurements optimization of a hydropower project, which is located in Sichuan Province, China. The seepage control measurements are introduced in this paper. An equivalent method is adopted to simulate drainage holes and the approach of determining equivalent permeability coefficient is presented. The 3-D seepage field with seepage control system is analyzed comprehensively by the water head contours, uplift on the dam foundation, and so on. The necessities of setting the grouting curtain and the drainage holes are discussed respectively. Further the optimal design of the grouting curting and drainage holes of the dam foundation is studied. The results show that special attention should be paid to ensure the well-operation of the seepage control system and the optimization of decreasing the depth of the drainage curtains and grouting curtains properly can be considered.

scholarly journals Application and Research of Soil Mixing Wall

2020 ◽  
Vol 3 (2) ◽  
Author(s):  
Runjie Gu
Keyword(s):  
Support Structures ◽  
Foundation Pit ◽  
Development Potential ◽  
Construction Period ◽  
Supporting Structure ◽  
Soil Mixing ◽  
Surrounding Environment ◽  
Supporting Structures ◽  
Great Development

Soil Mixing Wall can meet the needs of foundation pit support structures in various projects. Compared with other supporting structures, it has the advantages of good permeability resistance, short construction period, and less impact on the surrounding environment. It is a foundation pit supporting structure with great development potential<sup>[1]</sup>.

Real-time control of urban drainage system: Optimization of spillways

2015 ◽  
Author(s):  
S. Spina ◽  
L. Pancotto ◽  
G. Paris ◽  
F. Lombardo ◽  
S. Magnaldi ◽  
...  
Keyword(s):  
Real Time ◽  
Drainage System ◽  
System Optimization ◽  
Urban Drainage ◽  
Real Time Control ◽  
Urban Drainage System ◽  
Time Control

Numerical Simulation Program of the Foundation Pit

2012 ◽  
Vol 588-589 ◽  
pp. 1304-1307
Author(s):  
Qing Nian Yang ◽  
Shi Zhong Zhang ◽  
Yu Zhou Sima
Keyword(s):  
Numerical Simulation ◽  
Simulation Program ◽  
Subway Station ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Deep Foundation Pit ◽  
Construction Period

In this paper, a deep foundation pit of one subway station is analyzed under two different precipitation conditions, and the deformation laws of the pit under one-time precipitation and step-by-step precipitation conditions are investigated. The results indicate that the deformations caused by one-time precipitation are significantly larger than the deformations caused by step-by-step precipitation. Therefore, a step-by-step precipitation scheme is preferred in order to reduce the deformation cause by foundation excavation, when construction period permits.

scholarly journals Rekayasa Sistem Tata Air Lokasi Transmigrasi Palingkau Asri Lahan Usaha Satu SP-2 Di Wilayah Kabupaten Kapuas Propinsi Kalimantan Tengah

2019 ◽  
Vol 8 (1) ◽  
pp. 39-50
Author(s):  
Prihanika Prihanika
Keyword(s):  
Water Management ◽  
Drainage System ◽  
Water System ◽  
Land Development ◽  
Secondary Data ◽  
System Optimization ◽  
Water Management System ◽  
Maximum Value ◽  
Excess Water ◽  
Simple Drainage

Agriculture land in the transmigration location of Palingkau Asri is one of the development locations for tidal land development in Kalimantan. In its development this location has been divided into three settlement areas (SP), one of them is the SP-2. The focus of this research is Lahan Usaha Satu at SP-2. There are already irrigation networks consisting of irrigation channels (a simple drainage system) in the form of primary pilot channels, primary auxiliary channels, and tertiary channels. The main problems of this location include the excess of water that occurs in rainy seasons and a water system that does not function properly. To overcome these problems research was carried out in the following steps. Firstly, primary and secondary data were taken. Secondly, the water system optimization was examined using a mathematical model that was solved by using the HEC-RAS software package. Lastly, the problem of the excess water (floods) was solved by determining a dike height for a period of 25 years and optimizing the water system with water management structures such as watergates. The results indicated that the existing water management system still can handle the excess of water although the tertiary channels were overflowed (channel of T2, T4, T6, T12) especially at T6, where the overflow reached a maximum value of 1.1 m. The simulation with HEC-RAS

scholarly journals Measuring Effectiveness of Project Communication Channels in Affected Communities in Nepal

2021 ◽  
Vol 29 (43) ◽  
pp. 125-144
Author(s):  
Prabhakar Ghimire
Keyword(s):  
Quantitative Research ◽  
Local People ◽  
Sufficient Information ◽  
Hydropower Project ◽  
Rural Municipality ◽  
Construction Period ◽  
Related Information ◽  
Public Meetings ◽  
Project Construction ◽  
Two Sides

This study is identifying the most appropriate communication medium to communicate with local people by Arun-3 Hydropower Project (AHPP) especially focusing on the project construction phase.  Since, the study is focused on the construction period when chances of misunderstanding, miscommunication, and other conflicts between project-affected people and the project, will be high due to higher incidences of social and environmental issues.  This study was completed by applying mix method of research where quantitative research was conducted through a survey among local people of Makalu Rural Municipality (MRM) of Sankhuwasabha and a case interview was done with the chairman of the same Rural Municipality. The study has revealed that local radios and public meetings are the most recommended mediums that participants expected to support the project in properly disseminating project-related information to local people. This article suggests that AHPP should disseminate information about project activities mainly through local radios and public meetings. This study also concludes that the project developer is not providing sufficient information about project activities to local people, which is also a source of misunderstanding between the two sides.

scholarly journals Analysis of Foundation Pit Design of Metro Station in Complex Environment

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Yunchao Tao
Keyword(s):  
Environmental Conditions ◽  
Underground Engineering ◽  
Foundation Pit ◽  
Support Design ◽  
Metro Station ◽  
Construction Period ◽  
Geological Features ◽  
Geological Conditions ◽  
The Cost ◽  
Pit Design

The complex engineering geological conditions and the surrounding environmental conditions of the existing subway lines and adjacent buildings have significantly deepened the difficulty of metro station foundation pit design and construction. Based on the foundation pit project of Luboyuan Station of Nanjing Metro Line 9, this study chooses a reasonable foundation pit support design scheme to carry out related research by analyzing the site geological environmental conditions. Through the analysis and evaluation of the engineering geological conditions of the engineering site, the engineering geological problems that may occur in the process of construction are given. According to the lithologic characteristics of the site strata, the hydrogeological conditions, and the features of the underground engineering structure, the design of the foundation pit supporting system is optimized and analyzed. The results show that making full use of the geological features of strata and adopting effective support methods can ensure the safety of foundation pit construction, reduce the cost of engineering description, and shorten the construction period, which can be used as a reference for similar projects and construction.

scholarly journals Construction Technology and Management of Unilateral Support Formwork for 16M-High Concrete Outer Wall of Complex Deep Foundation Pit

2021 ◽  
Vol 1203 (2) ◽  
pp. 022094
Author(s):  
Yuchao Zhao ◽  
Jie Cai ◽  
Kai Yin ◽  
Hao Cheng ◽  
Jinsong Zheng ◽  
...  
Keyword(s):  
Outer Wall ◽  
3D Models ◽  
Mechanical Equipment ◽  
Construction Technology ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Construction Period ◽  
Construction Methods ◽  
Floor Slabs ◽  
Under Construction

Abstract Shanghai Grand Opera House, which is under construction in Shanghai, China, includes two relatively large opera halls, which are named as the large opera hall and the middle opera hall. Below the stages of these two opera halls are two deep stage pits where the mechanical equipment will be arranged after construction, therefore, the structure of these stage pits is designed to be basically hollow with only a small amount of floor slabs on the edges. For the most sections of the stage pits, the depth is 16m, and the arrangement of horizontal supports and lattice columns in the stage pits during the construction period is extremely complicated. To prevent the outer walls of the stage pits from leaking and further guarantee the quality of the structure, the unilateral support formwork, which is composed of multiple steel components as load bearing members, is applied to construct the 16m outer wall of the stage pits. In this paper, first, the specific working principle of the unilateral support formwork and numerical analysis of its construction steps are introduced. Then focus on explaining that through establishing detailed digital 3D models of the complex stage pits during construction period, the practical construction sequence and construction technologies are designed and formulated, meanwhile, the on-site staff can also be guided directly through digital 3D models, which guarantee the visualization of the complex technology and the convenience of on-site construction as well. The construction of the deep stage pits is currently in progress, and part of the outer wall has already been constructed successfully. The cost of the technology is certainly more than common construction methods, but it is still acceptable since most of the formwork members can be recycled and re-use, while the advantages are obvious. Finally, the main characteristics of the construction technology of the unilateral support formwork for 16m-high concrete outer wall is summarized and discussed, which can provide a reference for the construction of similar structures.

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