Reliability Analysis on Stability of Retaining Wall

2011 ◽  
Vol 368-373 ◽  
pp. 1213-1216
Author(s):  
Qing Guo Li
Keyword(s):  
Reliability Analysis ◽  
Reliability Index ◽  
Retaining Wall ◽  
Reference Value ◽  
Calculation Model ◽  
Wall Structure ◽  
Structure Reliability ◽  
Reliability Calculation ◽  
Geotechnical Mechanics ◽  
The Stability

The retaining wall structure reliability calculation model was established by identifying the stability reliability analysis function of retaining wall according to the geotechnical mechanics parameters’ interval characteristic. The method in this paper has been applied to the engineering examples, the results shows it is reasonable and practicable. The influence of geotechnical mechanics parameters on the retaining wall stability reliability index that was discussed in this paper has a certain reference value for engineering.

Reliability Analysis Based on Multi Sliding Surface Method

2013 ◽  
Vol 405-408 ◽  
pp. 576-579
Author(s):  
Yong Hua Cao ◽  
Chuan Zhi Huang
Keyword(s):  
Reliability Analysis ◽  
Safety Factor ◽  
Reliability Index ◽  
Limit Equilibrium ◽  
Limit Equilibrium Method ◽  
Sliding Surface ◽  
Random Field Theory ◽  
Surface Method ◽  
Equilibrium Method ◽  
The Stability

The reliability theory based analysis is more advanced and reasonable compared with the traditional methods for slope stability analysis. Limit equilibrium method is usually used to evaluate the stability of a slope. In this paper, a new reliability analysis method is obtained based on JC method and multi sliding surface method which a new limit equilibrium method developed by Huang. Then, this new method is applied for a wharf slope. The sliding surface get from the safety factor is not the same as that from reliability index though they are close to each other. The safety factor or reliability index get from Fellenius method is smaller than that from other method. The safety factor or reliability index get from multi sliding surface method is close to that from Bishops method. The reliability index can be more reasonable after the standard deviation of the soil property index is deduced with random field theory.

scholarly journals Sluice Safety Reliability Analysis - Application for Baovan Sluice in Vietnam

2019 ◽  
Vol 8 (10) ◽  
pp. 3473-3477
Keyword(s):  
Reliability Analysis ◽  
System Analysis ◽  
Calculation Model ◽  
Safety Factors ◽  
Factors Analysis ◽  
Reliability Calculation ◽  
Simulation Calculation ◽  
System Analysis Approach ◽  
Analysis Application ◽  
Definition Of

The article summarizes the irrigation works designing methods in Vietnam and other countries. While in Vietnamirrigation systemdesign method is deterministic and based on safety factors analysis, in other countries it’s popular with random design and reliability analysis. This is a modern design model and widely used in many fields in the world. Therefore, in this study, the authors presented how to develop sluice reliability calculation method under system analysis approach: definition of sluice s, problem tree, reliability functions for system simulation, calculation of reliability for works and works system, calculate reliability Bao Van sluice in Thanh Hoa province according to the introduced calculation model and proposie solutions to improve the reliability of the sluice if repaired or upgraded..

Reliable Design and Study on Highway Tunnel Lining Structure

2014 ◽  
Vol 580-583 ◽  
pp. 1398-1401
Author(s):  
Ze Lin Niu ◽  
Yan Bo Qi ◽  
Jie Sheng Huang ◽  
Chao Wang ◽  
Jun Lin Li
Keyword(s):  
Calculation Model ◽  
Structure Design ◽  
Tunnel Lining ◽  
Statistical Characteristics ◽  
Underground Engineering ◽  
Reliability Design ◽  
Structure Reliability ◽  
Mechanics Model ◽  
Reliability Calculation ◽  
Lining Structure

The article proposed the reliability calculation method for tunnel lining design combining Rock-Mechanics model and Monte Carlo finite element method.The reliability calculation model of tunnel lining structure design was established considering tunnel character. The types of the statistical characteristics and distribution of axial force for the big cross section of the loess tunnel structure had been summarized. The study result stated that the method is feasible. It has important theoretical guiding significance to the practice structure reliability design of tunnel and underground engineering.

Reliability analysis of the anti-sliding of a retaining wall subjected to seismic loads

2021 ◽  
pp. 1748006X2096428
Author(s):  
Xiao-Cheng Huang ◽  
Xiao-Di Xu ◽  
Qiu-Nan Chen ◽  
Yun-Fu Liu
Keyword(s):  
Reliability Analysis ◽  
Spatial Correlation ◽  
Retaining Wall ◽  
Friction Angle ◽  
Numerical Results ◽  
Seismic Loads ◽  
Full Agreement ◽  
Reliability Based Design ◽  
Complementary Role ◽  
The Stability

Geotechnical engineering involves various types of uncertainties, as it always deals with highly variable natural materials. Reliability-based design/analysis can play at least a complementary role in the design approach. In this paper, reliability analysis of anti-sliding of retaining wall with the parameters treated as random variables is performed based on the concept of random fields. Both friction angle and cohesion of soils near the interface along the base of retaining wall are treated as Gaussian fields. The spatial correlation and cross correlation of the variables are calculated by a specific covariance function and the seismic loads act on retaining walls are also taken into account. Examples are illustrated to verify the accuracy of the proposed approach. It is found from the numerical results that the spatial correlation of shear strength has an important influence on the probability of the anti-sliding failure of retaining wall. Moreover, the numerical results obtained from the proposed method are in full agreement with those obtained from Monte Carlo simulations. Therefore, the proposed method provides a new view to study the stability of a retaining wall subjected to seismic loads.

Optimization of High Concrete Retaining Wall Structure

2013 ◽  
Vol 357-360 ◽  
pp. 597-603
Author(s):  
Su Yang Gao ◽  
Yan Chen ◽  
Yao Feng Xie ◽  
Wen Dong Lei ◽  
Kai Yin
Keyword(s):  
Cross Section ◽  
Optimization Design ◽  
Retaining Wall ◽  
Cross Sectional Area ◽  
Wall Structure ◽  
Sectional Area ◽  
Cross Sectional ◽  
Structure Selection ◽  
Great Height ◽  
The Stability

The height of vertical pier retaining wall is relatively larger in regions with great height of water. As the retaining wall becomes higher, the cross-sectional area of ordinary gravity pier structure becomes larger and foundation strength needs to be larger, thus there are some restrictions for traditional structure form. This research focuses on new structure forms of high concrete retaining wall and its optimization design for piers in regions with great height of water. This study establishes a nonlinear constrained mathematical model of pier high retaining wall structures. The objective function is cross-sectional area of the pier retaining wall which is restricted by the stability, bearing capacity of foundation and strength of cross-section of retaining wall. This model is solved by fmincon function from Matlab and the results present an economically reasonable cross-section form. This new selection is greatly significant to improve the stability of high concrete retaining wall and reduce the project cost. The new structure is successfully used in a port of Huaihe River and it can be a solution to pier structure selection problem in regions with great height of water in the future.

Non-Probabilistic Slope Stability Analysis

2011 ◽  
Vol 243-249 ◽  
pp. 5627-5631
Author(s):  
Chun Yuan Liu ◽  
Jun Qi Zhang ◽  
Gong Pan ◽  
Hai Chao Song ◽  
Cheng Wei Liu
Keyword(s):  
Reliability Index ◽  
Limit Equilibrium ◽  
Data Distribution ◽  
Limit Equilibrium Method ◽  
Reliability Theory ◽  
Calculation Model ◽  
Reliability Calculation ◽  
Analysis Theory ◽  
Probabilistic Slope Stability Analysis ◽  
Adequate Data

A high filled subgrade of a highway slipped on the left of the line. According to conventional calculations (limit equilibrium method) ,we can know that the safety factor K = 1.55 and the probability of reliability index β = 3.1, failure probability Pf = 0.001. Through the introduction of interval analysis theory, non-probabilistic reliability calculation model is established, and the non-probabilistic reliability index is η = 0.7. Showing that the non-probabilistic reliability theory in the absence of adequate data distribution of information and possible subjective assumptions can also obtain more accurate results.

The Stability Reliability Analysis about Gravity Retaining Wall

2011 ◽  
Vol 250-253 ◽  
pp. 2352-2355
Author(s):  
Hong Mei Yang
Keyword(s):  
Reliability Analysis ◽  
Collocation Method ◽  
Retaining Wall ◽  
Second Order ◽  
Order Moment ◽  
Computation Method ◽  
Analysis Model ◽  
Safety Coefficient ◽  
Gravity Retaining Wall ◽  
The Stability

The computation method of retaining wall reliability indexes is intruduced, and the analysis model of gravity retaining wall reliability is established in this paper. And the reliability of gravity retaining wall reliability is analyzeda using the center collocation method of second order moment. Based on the comparison of the calculation result of safety coefficient method and that of reliability analysis method, the safety factor method can't correctly reflect the reliability of gravity retaining wall, but the center collocation method of second order moment can correctly reflect the reliability of gravity retaining wall.

scholarly journals STRUKTUR DINDING PELINDUNG LERENG DENGAN METODE KAKI BELALANG TIRUAN

Teras Jurnal ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 11
Author(s):  
Sulardi Sulardi
Keyword(s):  
Research Method ◽  
Flood Control ◽  
Retaining Wall ◽  
Point Contact ◽  
Wall Structure ◽  
Success Story ◽  
Ground Anchors ◽  
Drainage Channels ◽  
The Stability ◽  
Protective Structures

<p class="11daftarpustaka">Tujuan penelitian adalah untuik memberikan gambaran tentang spesifikasi, bentuk, dimensi dan konfigurasi struktur dinding pelindung tanah dengan metode kaki belalang serta metode pelaksanaannya di lapangan. Metode penelitian ini menggunakan metode penelitian terpakai dan penelitian ini sekaligus sebagai technical notes success story aplikasi struktur pelindung lereng dengan metode kaki belalang tiruan pada pembangunan reservoir pengendali banjir di kota Balikpapan. Hasil penelitian menunjukan, metode kerja pemasangan struktur dinding pelindung lereng dengan metode kaki belalang tiruan dapat diaplikasikan dengan baik dan aman tanpa terjadi incident. Stabilitas dinding penahan lereng ini terletak pada penggunaan pondasi jenis paku dibagian bawah, pasangan tapak-tapak penumpu dinding pelindung lereng, ground anchor dan pasangan saluran drainase.      </p><p class="11daftarpustaka"> </p><p class="11daftarpustaka">Kata kunci:<em> dinding pelindung lereng, kaki belalang, three point contact.</em><em></em></p><p><em> </em></p><p><em> </em></p><p align="center"><strong>Abstract</strong></p><p class="11daftarpustaka"> </p><p>The research objective is to provide an overview of the specifications, shape, dimensions and configuration of the structure of the protective walls of the land with the method of grasshopper and its method of implementation in the field. This research method used the used research method and this study as well as a technical notes success story application of slope protective structures with artificial grasshopper foot method in the construction of flood control reservoirs in the city of Balikpapan. The results showed that the working method of the installation of a slope protective wall structure with artificial grasshopper foot method can be applied properly and safely without incident. The stability of the slope retaining wall lies in the use of nail type foundations at the bottom, pairs of tread supporting walls, ground anchors and pair of drainage channels.</p><p> </p><p>Keywords: <em>protective slope walls, grasshopper feet, three point contact.</em><em></em></p>

scholarly journals Monitoring Technique Using a Vision-based Single-Camera System for Reinforced Soil Retaining Wall

2020 ◽  
Vol 20 (6) ◽  
pp. 209-219
Author(s):  
Yongsoo Ha ◽  
Gichul Kweon ◽  
Yuntae Kim
Keyword(s):  
Feature Matching ◽  
Retaining Wall ◽  
Reinforced Soil ◽  
Structural Safety ◽  
Wall Structure ◽  
Single Camera ◽  
Optimal Method ◽  
Camera System ◽  
Perspective Image ◽  
The Stability

Reinforced soil retaining walls are widely applied, and their frequency of collapse increases along with their use. Safety inspections are regularly conducted to ensure the structural safety of such walls. However, unexpected collapses occur for different reasons, such as design and construction problems, maintenance issues, and natural disasters including intensive rainfall. In this study, a single-camera system is proposed to evaluate the behavior of a retaining wall based on a single-perspective image. Various feature matching methods were compared to determine the optimal method for monitoring the retaining wall structure. The behaviors of the retaining wall structure were analyzed using the optimal method. The results indicate that the KAZE method provides the best results for monitoring the behaviors of a retaining wall, with errors ranging from 0.03% to 7.37%. The proposed single-camera system is widely used to evaluate the stability of a structure with high accuracy.

scholarly journals ANALISIS STABILITAS BACK-TO-BACK MECHANICALLY STABILIZED EARTH WALLS (STUDI KASUS JALAN LAYANG DI SULAWESI SELATAN)

2021 ◽  
Vol 4 (3) ◽  
pp. 657
Author(s):  
Yordan Salim ◽  
Andryan Suhendra
Keyword(s):  
Safety Factor ◽  
Urban Areas ◽  
Retaining Wall ◽  
Tensile Force ◽  
Wall Structure ◽  
Mechanically Stabilized Earth ◽  
Mechanically Stabilized Earth Walls ◽  
Mechanically Stabilized ◽  
The Stability ◽  
Earth Walls

In urban areas, the requirement for roads is always increasing. This has resulted in various problems such as limited land so that it needs to construct a proper retaining wall. The type of retaining wall that will be discussed is back-to-back mechanically stabilized earth walls. The author analyzes the minimum reinforcement length required for the stability of the retaining wall structure. The author also analyzes the use of backfill material from back-to-back mechanically stabilized earth walls. In this study, two types of backfill materials were used, sand and laterite. The author analyzes the stability of the structure using manual calculations and with software based on finite element methods with several differences in the reinforcement length of the geogrid. In manual analysis obtained the tensile force that occurs in the geogrid and the safety factor for the external stability. In the analysis using the software obtained the safety factor and deformation that occurs in the structure. The results of this study are the minimum ratio of reinforcement length to height, that is L = 0.66H for sand and L = 0.6H for laterite. The requirement of geogrid tensile capacity for laterite is smaller than for sand.Keywords: reinforcement length, mechanically stabilized earth walls, geogrid, safety factorPada daerah perkotaan, kebutuhan akan jalan selalu meningkat. Hal ini mengakibatkan berbagai masalah seperti keterbatasan lahan sehingga perlu konstruksi dinding penahan tanah yang tepat. Jenis dinding penahan tanah yang akan dibahas adalah back-to-back mechanically stabilized earth walls. Penulis menganalisis panjang penjangkaran minimum yang diperlukan untuk statbilitas struktur dinding penahan tanah. Penulis juga menganalisis penggunaan material timbunan dari back-to-back mechanically stabilized earth walls. Pada penelitian ini digunakan dua jenis material timbunan yaitu pasir dan tanah merah. Penulis menganalis kestabilan dari struktur menggunakan perhitungan manual dan dengan software berbasis metode elemen hingga dengan beberapa variasi panjang penjangkaran dari geogrid. Pada analisis manual, diperoleh gaya tarik yang terjadi pada geogrid dan faktor keamanan dari stabilitas eksternal struktur. Pada analisis menggunakan program diperoleh faktor keamanan dan deformasi yang terjadi pada struktur. Adapun hasil dari penelitian ini yaitu rasio panjang penjangkaran terhadap tinggi minimum yaitu L = 0,66H pada pasir dan L = 0,6H untuk tanah merah. Kebutuhan kapasitas tarik geogrid untuk tanah merah lebih kecil daripada pasir.Kata kunci: panjang penjangkaran, mechanically stabilized earh walls, geogrid, faktor keamanan

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