ICE - Institution of Civil Engineers - Virtual Library

410 WOODON FOLKESTONEWARREN LANDSLIPS : RAILWAY ENGINEERING DIVTSlON MEETING 22 February, 1955 Mr W. K. Wallace, Vice-President, Chairman of the Division, in the Chair The following two Papers were presented for discussion and, on the motion of the Chairman, the thanks of the Division were accorded to the Authors. Railway Paper No. 56 FOLKESTONE WARREN LANDSLIPS : INVESTIGATIONS, 1948-1950 by *Alan Marshall Muir Wood, M.A., A.M.I.C.E. SPNOPSIS Folkestone Warren has been the scene of numerous large-scale landslips which have sometimes proved costly, and often caused anxiety, to the operation of the main railway line through the Warren...

378 WILLLABIS ON RECENT LANDSLIPS IN CHESIIIRE. [Selected (Paper No. 1881.) `I On the Recent Landslips in the Salt Districts of Cheshire." By EDWARD LEADER WILLIAMS, Inst. C.E. M. THE large landslips of recent occurrence in the neighbourhood of Northwich, and the more gradual subsidence that has been going on for the last fifty years in the greater part of the Cheshire salt districts, form a subject of considerable interest, particularly when considered in connection with the geology of the country, and the method by which the manufactureof salt is carried on...

CORRESPONDENCE 705 Railway Paper No. 56 Folkestone Warren landslips : investigations 1948-1950 " -f by Alan Marshall Muir Wood, P.A., A.M.I.C.E. and Railway Paper No. 57 l` Folkestone Warren landslips : remedial measures 1948-1954 " by Noel Edmund Viner Viner-Brady, O.B.E., M.I.C.E. Correspondence Mr Jack Duvivier observed that the preliminary investigations described by Mr Wood provided a sound mathematical basis on which to design the stabilizing works referred to in Mr Viner-Brady's Paper...

CORRESPONDENCE 705 Railway Paper No. 56 Folkestone Warren landslips : investigations 1948-1950 " -f by Alan Marshall Muir Wood, P.A., A.M.I.C.E. and Railway Paper No. 57 l` Folkestone Warren landslips : remedial measures 1948-1954 " by Noel Edmund Viner Viner-Brady, O.B.E., M.I.C.E. Correspondence Mr Jack Duvivier observed that the preliminary investigations described by Mr Wood provided a sound mathematical basis on which to design the stabilizing works referred to in Mr Viner-Brady's Paper...

=R-BRADY ON FOLgESTONE WSRREN LANDSLIPS : REMEDIAL MEASURES, 1948-1954 429 Railway Paper No. 57 FOLKESTONE WARREN LANDSLIPS: REMEDIAL MEASURES, 1948-1954 * Noel Edmund Viner Viner-Brady, O.B.E., M.I.C.E. SYNOPSIS The major remedial measures carried out since the 1939-45 war can be divided into three sections:( l ) Areas of the Warren which are being stabilized by toe-weighting. (2) Areas which are being protected by means of a small sea wall built adjacent , to the existing sea wall, chiefly t o combat erosion...

Synopsis

In Norway, quick-clay deposits occasionally cause large landslips, or rather, landslides. This article attempts to give an outline of the mode of occurrence, the geographical distribution, some common features as to the mechanism, and supposed causes of the slips. Particular reference is given to the famous landslide in Værdalen, north of Trondheim, in 1893, where nearly 3 square kilo-metres of cultivated land, and about 55 million metres cubic metres were transformed into a heavy liquid, washing down the valley towards the fjord. One hundred and eleven persons lost their lives in this catastrophe.

En Norvège, des dépôts d'argiles mouvantes causent de temps en temps des affaisements importants ou, plutôt, des éboulements. Cet article essaie de donner un aperçu de la maniée dont ils se produisent, la répartition géographique, quelques traits communs quant au mécanisme, et des causes supposées de ces éboulements. L'on peut spécialement titer les fameux éboulemcnts de Værdalen, au Nord de Trondheim, en 1893, oú presque 3 kilo-métres carrés de terres cultivees et environ 55 millions de métres cubes furent transformés en un lourd liquide noyant la vallée vers le fiord. Cent onze personnes perdirent leurs vies dans cette catastrophe.

THE INSTITUTION OF CIVIL ENGINEERS. RAILWAY ENGINEERING DIVISION Tuesday, 1 January 1946. ALLAN STEPHEN QUARTERMAINE, C.B.E., M.C., B.Sc.(Eng.), M.I.C.E., Chairman of the Division, in the Chair. The following Paper was submitted for discussion and on the motion of the Chairman, the thanks of the Division were accorded to the Author. Railway Paper No. 19. MEETING. `` Folkestone Warren Landslips : Research carried out in 1939 by the Southern Railway Company...

The design and analysis a marine of trial embankment on a landslip in glacial till A . K. c. Smith, MA, PhD, CEng, MICE W The new A55 North Wales Coast Road runs Proc. Insin Civ. Engrs Geotech. Engng, 1995, 113. Jan., 3-18 Ground Board Geoiechnical Engineering Advisory Panel Paper 10535 road between Llanddulas and Aber(Fig. 1) runs Written discussion near to the shore.At Llanddulas (Fig. 2), the along the foreshore at Llanddulas, east of closes 15March 1995 new road leaves the existing at the west A55 1 Colwyn Bay,crossing an area about km end of the Abergele Bypass, crossing over the long with history of deep-seated a landChester-Holyhead Railway to the foreshore...

The history of movements of a coastal landslip at Sandgate, Kent has been investigated. The present movements, believed to have commenced in the 1930's, are part of a reactivation of a landslip which took place in 1893. The average rate of movement is currently some 60mm/year. Rainfall records have been examined and information on beach levels at Sandgate, dating back to 1720, reviewed with respect to movements of the landslip. The landslip appears to move when the six months winter rainfall exceeds 400mm and the beach levels are low.

• Introduction

• Geology of Landslip

• History of Landslipping

• Records of Movement

• Movement with Respect to Rainfall

• Movement with Respect to Beach Levels

• Movement and Tidal Variation

• Mechanism of Movement, Discussion

• Acknowledgements

• References

Construction of the Thrace motorway involved earthworks in sidelong ground in a residual landslip zone in a sequence of heavily over-consolidated clays with overlying sand and gravels. This zone had not been fully appreciated by the scheme designers and major failures occurred during initial construction. Reappraisal and redesign of critical sections of the earthworks were undertaken by the supervising engineer. The extent of the residual landslipping over several kilometres of the route was identified from aerial photographs and geomorphological reconnaissance. Boreholes were sunk at critical locations to permit detailed stability analysis. Remedial works consisted of reprofiling and drainage measures. They included a 700m long rock toe, the excavation for which was logged so that the design could be modified locally to suit actual ground conditions. Faulting and tilting were found to exert a controlling influence on the local groundwater drainage and stability.

• Introduction

• Topography and Geomorphology

• Geology

• Stability Analyses

• Remedial Measures

• Geological Observations During Remedial Works

• Conclusions

• References