Take a look at our new screencasts demonstrating how to use repute 2. Design service including for a range of embedded pile wall systems, including secant, contiguous, sheet and diaphragm walls. Geosolve wallap retaining wall geotechnical software. The program is a practical design tool for engineers, allowing them to explore the effects of changing construction stages with ease.
Tangent pile walls have a higher bearing capacity than contiguous walls and the positioning of anchors is easier because it is not necessary to use wales. The wales are located either in the pile head, or elsewhere along the height of the wall. Contiguous pile wall secant pile wall hardsoft or hardfirm secant pile wall hardhard the choice of system depends on a number of factors. The space between contiguous wall piles, filled with shotcrete or reinforcing mesh, requires special drainage. Contiguous piles are suitable where the groundwater table is below excavation level. On the design of a deep secant pile wall igs 985 ngm 2016 proceedings open excavation using a supported wall.
Contiguous pile wall as a deep excavation supporting system. A contiguous bored pile wall is formed by constructing a series of individual vertical rc piles. Then, using the calculated load, design the cap beam which is really a bracing wale or frame. Cantilever shoring software soilstructure software. The overall stability of the contiguous pile wall was analysed with oasys frew. Complete design and analysis of pile walls can be performed by programs geo5 sheeting design or geo5 sheeting check. Godavarthi, dineshbabu mallavalli, ramya peddi, neelesh katragadda, and prudhvikrishna mulpuru. Our software asdip retain will be used to support the discussion. This program is used to quickly design nonanchored walls and to make a basic design of anchored retaining walls sheet pile, soldier pile, diaphragm and pile walls. Wallap is suitable for the analysis of both temporary works, such as sheet pile walls, and permanent works such as reinforced concrete diaphragm walls and contiguous bored pile walls. This document is a stepbystep design example of a typical retaining wall on piles using asdip retain. Deepex can design retaining walls with many different wall and support types. The program is a practical design tool for engineers, allowing them to explore the effects of changing construction stages with ease and provides the figures. Deepxcav is the software of choice for more than 1200 engineers worldwide.
Bored pile retaining walls have many uses, basement construction, cut and cover bridges, bank stabilisation and roadrail cuttings, but the system which you may need will depend heavily on certain factors. Anchored secant pile wall designed with deepex software. Contiguous pile wall design excavation design fine software. I have placed in all the piles but dont know how to finish it so it looks like a solid wall autodesk ductname. Online deep excavation and soil nail wall design workshop. In minutes you can design and analyse nearly any load condition for retaining walls, sheet pile, secant, contiguous and diaphragm walls among many other types. Figure 1the profile of spt values observed along the depth of various bore holes 3 design contiguous pile of 800 mm diameter with embedment. A detailed design methodology of an excavation supporting system is furnished in this study.
Secant pile walls for excavation support are designed to function in one of two ways. In the direction parallel to the retaining wall, the pile cap acts as a continuous beam supported by the piles. Cads piled wall suite geotechnical design software. Your rectangular secant pile wall is really just a braced, foursided cofferdam. In minutes you can design or analyze nearly any configuration or loading condition for cantilevered, restrained, gravity, gabion, soldier pile, or segmental retaining walls. This type of retaining wall is constructed with spaces between adjacent reinforced concrete piles and is used on a range of engineering or building projects including but limited to road or rail underpasses, underground shaftstanks, cut and cover tunnelsportals or basements. This tutorial shows how to design a retaining wall, input the water conditions or a surcharge and analyze the resulting wall. A case study on the contiguous pile wall retaining system for supporting a deep excavation at a town centre is presented. Full analysis of the construction sequence for temporary and permanent conditions. Secant pile design software deepex by deep excavation deep. The program geo5 sheeting check allows to design following shor. It allows the user to model the real structure behavior using stages of construction, to calculate the deformation and. From soil estimation to helical pile settlement estimation.
Secant pile design software deepex is the most complete design software for secant pile walls. Contiguous and soldier pile walls in south east queensland, brisbane, gold coast, sunshine coast and toowoomba. Ground freezing of soils and tunnel driving through frozen material zone tunnel driving securing the tunnel face with a screen in the process selecting the solution, it was. Secant pile wall tangent pile wall contiguous pile wall. Asdip retain is a structural engineering software for the design of retaining walls. The wall consists of discrete piles typically installed at centres 150mm greater than their diameter, leaving. Cads piled wall suite consists of a series of dynamically linked software modules for the analysis and design of embedded walls in concrete or steel in accordance with both the eurocodes and british standards. For more than five decades piles, structures made of piles pile wall, pile box, etc. Secant pile walls tangent pile walls soldier piles.
These include soil type, ground water profile, retained heights, available construction time, propping arrangement, cost and design life. Oasys programs were used throughout the wall design. Pile design software, pile group analysis, laterally loaded piles, py curves, free download and rock socket. Tangent pile walls design excavation design fine software. The program geo5 sheeting check allows to design following shoring excavation and retaining wall. In contiguous pile walls, the axial distance of piles is bigger than their diameter. Bechtel corporation remedial construction services houston, texas, usa77031 houston, texas, usa77056 houston, texas, usa77064 abstract. Contiguous piling is a highly effective method of creating a retaining wall before excavations even begin. This could reflect the development of excess pore water pressure and corresponding reduction in shear strength of liquefiable material throughout the duration of the earthquake. Design the secant pile and the ground achors with allowable stress methodology and obtain a wall embedment safety factor of 1. Design deep excavations, stepped walls, piles, sheet pile design, nonlinear analysis, secant pile walls, slurry walls, aashto, aci. The program calculated that the pile length in the twostorey section was required to be approximately 12m with a retained height of 7. As a result, all tangent piles need to be reinforced.
Secant pile walls design excavation design fine software. In the case of a permanent pile wall, the rc ring should be based in the pile head. Pile design software pile group analysis py curves. Retaining wall on piles design example using asdip retain. Ground conditions, retained height, ground water and deflection, etc. The typical design approach develops the structural capacity of the wall in the vertical direction. You can access the deepex retaining wall design exaples below. We have added australian beams, british beams and european beams to the current north american aisc beam sections. The theoretical concepts used in the pywall software extend beyond the conventional method of analysis and design of flexible retaining walls based on limitequilibrium theory. Tangent pile walls, in contrast to secant pile walls do not interesect. Design of a contiguous bored pile wall to reduce lateral spreading potential. The geo5 sheeting check program is used to make advanced designs of anchored or strutted retaining walls pile, sheet pile, soldier pile or diaphragm walls.
A contiguous pile retaining wall system typically comprises of items such as piles, anchorages and system accessories. Contiguous bored pile walls are formed by constructing piles using the cfa, lda or csp technique. Supports and external loads can be added on the model graphically or using the userfriendly model wizard. Geotechnical design dublin, 14 june, 20 support to the implementation, harmonization and. The results show the required embedment lengths, the internal forces on the structure and the forces in anchors. Contiguous pile walls are installed using rotary bored or cfa techniques.
In the late sixties of the 20 th century the boom of motorway and highway. Design of a contiguous bored pile wall to reduce lateral. It considers details that no other package includes. Drilled pier bored pile software soilstructure software. Sheet pile design software, sheet pile design deep excavation. Geo5 software helps with designing secant pile walls. Pile wall secant pile wall, tangent pile wall, contiguous pile wall. Innovative deep basement design in cavan, ireland oasys. Repute allows engineers to design single piles subject to vertical loading, according to published design standards such as eurocode 7. In a tangent pile wall, there is no pile overlap as the piles are constructed flush to each other. Up until now, you needed one program for axial capacity, another for lateral load analysis and yet a third program for reinforcement design. Oasys frew was used for the serviceability analysis of the contiguous wall.
Cads piled wall suite has been designed to cater for the needs of many different types of user. Contiguous pile wall contiguous piles are suitable where the groundwater table is below excavation level. As a difference to conventional pratice, the pywall method includes the effects of soilstructure interaction. Pile walls contiguous, tangent, secant are common solutions to permanent shoring structures. Secant pile construction project report download expert. Contiguous piled retaining wall, excavated and propped. Tangent pile walls are not as commonly used as contiguous pile walls. Include 600 psf traffic surcharge 1ft behind the wall for a length of 20ft. Contiguous piled wall with ground anchor support design spreadsheet contiguous piles, structures made of piles, and pilelike structures are useful structural elements to support deep excavations and cuts in slopes, and to retain creeping or sliding slopes, not uncommonly in. Secant pile construction constructing in the urban area. Contiguous pile wall design excavation design fine. Occasionally, a guide wall is constructed at platform level to aid positional and verticality tolerances. This tutorial shows how to quickly design a nonanchored wall in the sheeting design program.
I would design the wall as a braced wall not cantilevered and calculate the required bracing load per unit length of wall. Cads piled wall suite consists of a series of dynamically linked software modules for the analysis and design of embedded walls in concrete or steel. Pile overlap is typically in the order of 3 inches normally 8 cm. Contiguous pile walls south east queensland east coast. Contiguous piled wall with ground anchor support design.
The drainage is usually made of perfored plastic tubes. Wallap is a powerful, fast and userfriendly program for analysing the stability of cantilevered and propped retaining walls. Once the wall has been designed, oasys retaining wall analysis software then checks for cantilever stability, displacement, shear forces, and bending moments within the wall. Overview of the methodology to design retaining walls supported on piles, in compliance with the current design codes. Moment of inertia secant and contiguous piled walls. The diameter of each pile in a contiguous piled wall is usually not less than 300mm diameter. Including concrete contiguous bored piles, diaphragm walls, cofferdams, tied walls and king pile walls, the program is truly comprehensive. Design of 20 m deep excavation with permanent anchored secant bored pile wall sbpw and contiguous bored pile wall cbpw as retaining structure of. This space must be correctly drained, so that rainwater does not stay behind the concrete. Contiguous pile walls if you want a more permanent retaining wall, then contiguous pile walls are the answer, and at the east coast group of companies, we can provide everything you need.
An ideal solution for earth retention where existing structures are close to site boundaries and excavations where ground water is present, piled walls create a temporary or permanent retaining structure enabling safe excavation to take place after installation of the. With tangent pile walls, it is common to create a pile cap so that a more homogenous behavior can be achieved. It includes the design of cantilever retaining walls supported on piles based on the ibc aci 318 provisions. Factors of safety are computed according to standard codes of. Support of deep excavation using contiguous pile a case study 2 hence a stiff retaining wall needs to be constructed to enable basement construction activities. From soil estimation to axial and lateral pile capacity. Worked examples presented at the workshop eurocode 7. Contiguous piling contiguous retaining walls bachy. Missouri university of science and technology scholars mine. Geotechnical design tools for soilstructure interaction problems such as pile groups, laterally loaded piles, nonlinear py curve generation and rock socket design. Prestressed bar anchors vsl, dywidag, strand anchors vsl, dywidag, helical anchors helical anchors ltd, chance, maclean, anchor bars vsl. If you design retaining walls, you know its tedious and timeconsuming.
Wallap geotechnical design software earth retaining. The space between them is usually filled with shotcrete and reinforcing mesh. The axial distance between the piles is exactly equal to their diameter, so there is no free space between them. Secant pile walls are often realized when it is not possible to use diaphragm walls. Cads piled wall suite consists of a series of dynamically linked software.