ICE - Institution of Civil Engineers - Virtual Library

KIGG OS REPAIRS TO DOCK WALLS: [Selected (Paper No. 3618.) `(Repairs t o Dock Walls." By FREDERICK RIGG, JAMES Assoc. M. Inst. C.E. THE Humber dock a t Hull, which wasopened in 1809, was built with its walls battered on the face to a uniform radius of 66 feet, the sheet-piling at the toe being about 8 feet in front of the coping. This profile was no doubt well suited to vessels of a century ago, but modern steamers, almost rectangular in midship-section and fitted with fenders and rolling-chocks, chafed the face of the wall to such an extent thata general overhaul was decided upon...

350 WARD O N REPAIRS TO FACTORY CHIMNEYS. [selecte(t SECT. 11.-OTHER SELECTEDPAPERS. (Paper No. 4150.) `` Repairs t o Factory Chimneys." By T a o x ~ s HEXRY A R D , Assoc. M. Inst. C.E. W THE Author recently had to deal with the problem of repairing a chimney 163 feet in height, situated at Giridih, in the East Indian Railway collieries, where steeple-jacks not are available. The repairs required to be done were extensive, involving the pointing of two principal cracks, at opposite ends of a diameter, which ran nearlythe whole height;smallercracksalsorequiredattention...

MILITARY ROADS. 173 ROAD REPAIR. From many considerations it will be obvious, that the maintenance of Highland Roads and Bridges in a perfect state requires unremitting attention ; for although the passage of cattle, horses and light carts makes but a slight impression, the winter frosts and heavy rains sometimes inflict injuries which endanger a total interruption of intercourse. This requires the unceasing watchfulness of six superintendents, each having about 200 miles under his charge; the general inspector, moreover, visiting the whole in turn ; such of the military roads as are still in use being included with the new roads made under the Highland Road and Bridge Act...

papers.] TOWVNSHEND REPAIRS AT ALDEXNEY BREAKWATER. ox 307 (Paper No. 3006.) `I Repairs at Alderney Breakwater." By BERSARD O'DRISCOLL TOWNSHEND, M.Inst. C.E. ASSOC. ALDERNEY breakwater-one of the most exposed works of the kind i n the world-consists of a huge mound of large and small rubble surmounted by a superstructure of coursed and rubble masonry set, above low water, partly in blue lias and partly in Portlandcement mortar. The superstructure provides quay a on the harbour side, anda promenade or high level on the sea side, with a line of rails on both levels, Fig...

Proc. Instn Civ. Engrs, Part I , 1980, 6 8 , Aug., 399408 8339 Concrete deterioration repair and T. P. O'BRIEN, BSC, MA* Structural concrete has been shown to be a durable material, capable of giving very long, maintenance-freeservice.Despitethismanyownershavebeenfacedwiththeneedfor extensive repairs to their concrete structures, and, sometimes, to programmes of regular maintenance. The causes deterioration in concrete are sufficiently well understood for the of 'normal' buildings requirementsnecessary to producesoundconcretetobeknown.In is be concrete deterioration avoidable...

428 ~ A L V A R T ION REPAIRS T O DOCK-ENTRANCES. [Selected (Pnper No. 41 F5.) " Repairs t o Dock-Entrances." By JAXES LOISCALVARD, Assoc. M. Inst. C.E. THE repairsdescribedinthisPaperwerecarriedout at West Hartlepooland at theTyne Dock. Theconditionsineach case present departures ordinary from practice, and methods the adopted may be of interest engineers to having deal to with similarcontingencies. COALDOCK, E S T HARTLEPOOL. W The 60-foot entrance to theCoal Dock from the West Harbour at West Hartlepool was constructedin1880 ; after about 30 years' service, the gates were found to be in such a condition, from wear and exposure, as to be no longer safe, and it was decided to renew is of the olderform,havingbattered walls them...

EVALUATION OF RESPONSE OF DISCUSSION 11 North Lochay tunnel repairs A. T. Cameron and N. M. Sandilands Proc. Instn. Civ. Engrs Wat. Marit. & Energy, 1997, 124, June, 127129 Paper P10800 011 011 T. N. Morrow, Babtie Group Ltd Can the authors please explain if any special attention was paid to the concrete mix for the repair section in terms of its durability. Where was the concrete batched and how was it transported and placed behind the arches? 59...

Proc. Insrn Civ. Engrs, Part 1 , 1981, 70, May, 325-341 8339 DISCUSSION Concrete deterioration and .repair T. P. O'BRIEN M r R . T. L. Allen, Cement and Concrete Association In $ 32 Mr O'Brien says that the reinforcing bars are normally primed with a corrosion-inhibitingmaterialsuch as cementslurry. He does not mention the possible use of phosphate washes, which I believe some specialist contractors normally use. Opinions differ as to whether these are desirable or not. My own inclination is to say that they are not...

350 GRAY ON BREAKS IN SUBMARINE CABLES. [Selected (Paper No. 3166.) `` Breaks in Submarine Cables close t o Repairs." By ANUREW GRAY, Assoc. M. Inst. C.E. THAT breaks in submarine cables occur, apparently in consequence of repairsundercertain conditions, is well known, buttheir primary cause is not generally appreciated. The Author has observed the circumstances connected with such breaks, and proposes to give an account of theirorigin,whichappears to explain relationship their to previous repairs. breaks These usually occur i n old cable a t a distance of more than the depthof water from the repair by which they are apparently caused, and theendsatthebreakare corroded tosharppoints("needle points ")...