|back to menu|
|NEWSLETTER 05 - 30.11.02||
works on the bridge are at full power
Pavment dismantling from the bridge remnants
Pavement dismantling on the right side of the Bridge began 31.10.2002. As you were informed in the last Newsletter, each pavement stone has been previously marked, documented and measured. This is a very delicate job, because the emphasis was put on the fact that the largest possible number of these stones is to be returned on its original place. The workers have carefully, with hand tools, separated stone by stone, liberating it from mortar, silicon and soil.
pavment dismantling from the bridge
pavment piled on Harem Semovac
Removal of concrete blocks
Removal of concrete blocks on both sides of the
Bridge was done from 1-16. November.
Archeological excavations began after pavement dismantling. They are conducted in a way that surface layer of soil is removed, while the whole surface is brought to certain level. On the right bank quadrant is dug in the dam. Until now we have reached a depth of apx. 2.5 m below the surface of pavement. Remnants of three walls were found, and they were examined, documented and has digging continued. Dam that is dug out is removed by crane.
quadrant on the right bank
quadrant on the left bank
Findings of prevoius archeological excavations
After conducted extended but still unfinished
research works and with analysis of archive documents, development of the location can be
divided into several developing stages:
-before 1452 first wooden bridge was built which connected the fortresses. The bridge was wooden with two console distinctive parts and middle one which was hanging. Semicircular, unsymmetrical annex of fortification was built for bridge reliance on the left bank, and on the right bank trapezoid enlargement of plateau of Helebija tower with abutments of the bridge.
-between 1452 and 1566 on the right bank tower
Helebija was reinforced by sub-wall with round corridor and the crown. Tower was elevated
with wooden crown. In the same period Tara was elevated, building which served for
accommodation of the crew was built within the fortification. Year 1522 mesdzid of Sultan
Selim was constructed, smaller mosque for the crew of the fortress. South-west corner of
fortress was fortified, tower Hercegusa was constructed.
Remnants of wooden plumbing
On the left bank, right next to north-east part of
the quadrant, wooden plumbing pipe was discovered with outer diameter 24cm and inner one
12cm. The pipe was covered with 5cm thick layer of red dirt in order to make it
16th centuring plumbing pipe
Outlet of Radobolja to Neretva
This year we are witnesses of extreme high water
levels of Neretva and Radobolja. High-capacity outlet of Radobolja to Neretva was built to
allow undisturbed flow of works in those conditions.
Repair of the abutment walls
To begin with the grouting of abutment walls
first important thing is to replace those stone blocks which are destroyed or damaged.
Only solid and unique wall can receive grouting mass without any problems.
22nd of November 10 tons of lime arrived on
auxiliary site on harem Semovac. Lime was burned and extinguished in natural manner and it
is at least 12 months old.
Dismantling of remnants of parapet and cornice from the left side of the bridge
19th of November dismantling of bridge remnants began on the left bank
of Neretva. This job is very risky because console of the bridge which remained after its
demolition, is in very ban condition. Fractures in construction are visible. The fact that
solid support for auxiliary construction still does not exist under his part of the
bridge, makes the job even harder.
Preparations for erecting the centering
One of the most important elements which will influence the reconstruction of Old bridge certainly is the centring. In the last Newsletter we presented its construction and the main principles. In this one we are already in a position to inform you that preparatory works for its erection are at full power.
1. CONCRETING THE FOUNDATIONS
First in a row of preparatory works is concreting the foundations for heavy scaffolding.
The works have begun on the right bank of Neretva, by nailing down iron anchors 2m of length into rocks under the bridge. Anchors are nailed down into rocks 90cm and covered with Altex.
Wooden bedding was erected on the rock around the anchor and concreting the layer of liable concrete was executed.
After that, additional bedding for the foundation foot was erected on the existing one, and reinforcement was placed inside and concreting was done again.
2.PLACING THE PONTON In order to allow undisturbed communication of people and material during erecting of centring, it is decided that Neretva is to be temporarily spanned with pontoon.
Excavation, drilling and covering the anchors were done beneath feet of temporary walking bridge. After that, planking and steel elements were erected and anchor blocks concreted
This NEWSLETTER was made in accordance with prevailing articles of the Contract No 002/2002 about the Rehabilitation of the Old Bridge, by ER-BU CONSTRUCTION / TURKEY
ER-BU CONSTRUCTION / TURKEY
|back to menu|
|GENERAL ENGINEERING - P.zzale Donatello 4 - 50132 Firenze - Italy - ph. +39 055 2345256 - fax. +39 055 2476074|