Einspannungsverhältnisse bei Bohlwerken und deren vereinfachte Berechnung mit Hilfe 'ideeller' und 'stellvertredender' Belastung

Der Zweck dieser Arbeit ist, die in der Praxis am häufigsten vorkommenden Belastungsformen von Bohlwerken zu untersuchen: Wie ist der Belastungsverteilung, wie sind die Einspannungsverhältnisse und wie können sie leicht und doch genügend genau rechnerisch erfasst werden? Alle Systeme lassen sich auf das erste, Belastung mit Einzelkraft,...

Beitrag zur Berechnung von Bohlwerken

Über die Verankerung von Spundwänden

Die Anregung zu der vorliegenden Abhandlung erhielt ich aus der Grundbaupraxis bei Entwurfarbeiten für verankerte Spundwandkajen. Insbesondere war es die Tatsache, dass sich nach dem bisher allgemein üblichen Verfahren zur Bestimmung der erforderlichen Ankerlänge - mittels aktiver und in der Erdoberfläche ansetzender passiver Gleitlinie - bei...

Steel Sheet Pile Walls in Soft Soil

For almost a century, steel sheet pile walls are applied worldwide as earth retaining structures for excavations and quay walls. Within the framework of the development of European structural codes for Civil Engineering works, the Eurocodes, Eurocode 3 Part 5 for design of steel sheet pile walls was issued in 1997. This code offers possibilities...

Reliability of vibration prognosis by FEM for extensive measurements at test-site Rotterdam North:Input parameters phase 1

Reliability of Sheet Pile Walls And The Influence of Corrosion: Structural Reliability Analysis with Finite Elements

The Finite Element Method is well accepted in design practice nowadays. It can be used for modeling complex structures and systems. The constitutive models are improving, which enables us to make more accurate predictions of the real world behavior. On the other hand, especially in the field of geotechnical engineering, the uncertainties in the...

Settlement during vibratory sheet piling

During vibratory sheet piling quite often the soil near the sheet pile wall will settle. In many cases this is not a problem. For situations with houses, pipelines, roads or railroads at relative short distance these settlements may not be acceptable. The purpose of the research described in this thesis is to develop a model that is capable of...

Modeling stray current and its influence on corrosion of steel sheet piling

Stray currents are known to promote corrosion of nearby metallic structures. Electrolysis is the responsible phenomenon. Where currents enter the metallic structure, the latter is protected. The construction corrodes at the location where currents exit through the ground to be collected by the substation. The extent of such corrosion has until...

Centrifuge modeling of an adaptive foundation system for embankments on soft soils

Centrifuge tests are conducted to analyze the behavior of a new adaptive foundation system for embankments on very soft soils. The embankment is constructed in-flight in three stages. Various measurements are taken during the test, which are used for the calibration and verification of a numerical model. This paper describes the new adaptive...

Would Risk Management Have Helped?: A Case Study

To reduce the costs of unexpected geotechnical events in construction projects in Sweden, the Swedish Geotechnical Society has adopted a general methodology for risk management. In this paper, we exemplify how the proposed risk management philosophy could have been applied on a sheet-pile wall, which failed in 1992 in Stockholm because the...

Model Solutions for Performance-Based Seismic Analysis of an Anchored Sheet Pile Quay Wall

Conventional seismic designs of quay walls in ports are mostly based on pseudo-static analysis. A more advanced alternative is the Performance-Based Design (PBD) method, which evaluates permanent deformations and amounts of (repairable) damage under seismic loading. The aim of this study is to investigate the suitability of this method for...

Impact of the Eemdijk full-scale test programme (Impact du programme d'essais à grande échelle Eemdijk)

Levees in the Netherlands have traditionally been constructed from soil. Climate change and land subsidence require heightening and/or reinforcing these existing levees. Traditional reinforcements demand additional space, which in some cases conflicts with existing buildings. Applying sheet pile walls in levees allows for strengthening while...

Eemdijk full-scale field test programme: ground dike and sheet pile dike failure test (Programme d’essai terrain à taille réelle Eemdijk: essais de déformation et de rupture pour une digue standard en terre et une digue renforcée avec palplanchesitre)

Dikes in the Netherlands have traditionally been constructed with soil. Climate change and subsidence requires heightening and or reinforcing these existing dikes. Traditional reinforcements demand additional space, which in some cases conflicts with existing buildings. Applying sheet pile walls in dikes allows for strengthening while minimizing...

Eemdijk full-scale field test programme: sheet pile pullover tests (TProgramme d’essai terrain à taille réelle Eemdijk: essais de déformation et de rupture de murs palplanches)

Dikes in the Netherlands have traditionally been constructed with soil. Climate change and sub-sidence requires heightening and or reinforcing of these existing ground dikes. Traditional reinforcements de-mand additional space, which in some cases conflicts with existing buildings. Applying sheet pile walls in dikes allows for strengthening...

Approaches in the design of softwood sheet pile-vegetation system as an alternative to twin-wood sheet pile

Tropical hardwood or treated wooden sheet piles have been used historically to protect stream banks in countries like the Netherlands. However, there is an imminent need for alternative as exploitable tropical hardwood forests available in the country is limited. Locally available softwoods are less resistant to decay and in extreme conditions...

Geogrid-anchored sheet pile walls: a small-scale experimental and numerical study

The use of geogrids to anchor Sheet Pile Walls (SPW) is relatively new. A series of small-scale tests was performed to investigate the behaviour of geogrid-Anchored SPWs subjected to strip footing surcharge loading. Particle Image Velocimetry (PIV) techniques were used to measure soil displacement and analyse the global failure mechanism and...

Testing and modeling of sheet pile reinforced dikes on organic soils: Insights from the Eemdijk full-scale failure test

The Netherlands is inherently challenged by water, as a large part of the country lies below sea level and several major rivers in North-western Europe cross the country. The most prevalent form of protection from coastal and river floods in the Netherlands includes approximately 22,000 km of earthen dikes, of which 3800 km are primary flood...