Main­mark shortlisted for in­ter­na­tional award

DEMM Engineering & Manufacturing - - NEWS -

The engi­neer­ing firm

re­spon­si­ble for sav­ing New Zealand’s Christchurch Art Gallery fol­low­ing the earth­quakes in 2010 and 2011 has been shortlisted for the In­ter­na­tional Project of the Year Award at the 2016 Ground Engi­neer­ing Awards.

Ground engi­neer­ing firm Main­mark was able to re­sup­port and relevel the 33,000 tonne gallery in just 52 days, rec­ti­fy­ing se­vere foun­da­tion dam­age.

The In­ter­na­tional Project of the Year Award recog­nises projects that have de­liv­ered geotech­ni­cal in­no­va­tion that stands out on the in­ter­na­tional stage for cre­den­tials in sus­tain­abil­ity, health and safety, and value engi­neer­ing.

“We are thrilled to have this land­mark project recog­nised on a global scale and in com­pany with an out­stand­ing co­hort of engi­neer­ing firms,” said Main­mark Founder and Chair­man, Philip Mack.

“This ac­knowl­edge­ment is a tes­ta­ment to the tech­ni­cal ex­per­tise of the Main­mark team and our in­no­va­tive tech­nolo­gies, which to­gether de­liv­ered out­stand­ing ground engi­neer­ing out­comes un­der tight project man­age­ment,” he said.

Judges con­sider client sat­is­fac­tion, in­no­va­tion, value for money, per­for­mance against pre­dic­tion, the qual­ity of de­sign and con­struc­tion, safety, and ap­pli­ca­tion of qual­ity man­age­ment. Awards will be an­nounced on 30 June at the Hil­ton, Lon­don, where over 800 of the in­dus­try elite will join to­gether for an event filled with en­ter­tain­ment, cel­e­bra­tion and net­work­ing.

RESURRECTING THE CHRISTCHURCH ART GALLERY

Dur­ing the seis­mic events of 2010 and 2011, Christchurch was struck by thou­sands of earth­quakes in­clud­ing one with the high­est peak ground ac­cel­er­a­tions ever recorded (2.2g). The Art Gallery was badly da­m­aged by the Fe­bru­ary 2011 earth­quake and ex­pe­ri­enced 150mm of dif­fer­en­tial set­tle­ment – up to 182mm sub­si­dence in some places.

In 2015, the Christchurch City Coun­cil en­gaged Main­mark to re­pair the foun­da­tion dam­age fol­low­ing a com­pet­i­tive in­ter­na­tional ten­der process. The re­quire­ment was to raise and relevel the gallery, a large multi- storey, glass-fronted, con­crete-framed build­ing of heavy con­struc­tion, with un­der­ground car park­ing and plant rooms.

Main­mark pre­pared and strength­ened the foun­da­tions, cre­at­ing ce­men­ti­tious grouted sub­soil col­umns by Jet Grout­ing. Relev­el­ling then fol­lowed, by in­cre­men­tally in­ject­ing a pro­pri­etary ce­men­ti­tious grout us­ing JOG Com­puter- Con­trolled Grout­ing tech­nol­ogy to pro­duce the con­trolled lif ting pres­sures re­quired.

The scale and com­plex­ity of this relev­el­ling project was sig­nif­i­cant. The build­ing was lif ted with the client’s man­age­ment staff in situ – only the base­ment carpark was not in use. A be­spoke mon­i­tor­ing sys­tem was also de­vel­oped to dig­i­tally vi­su­alise the build­ing’s lif ting move­ment in real time us­ing data from mea­sur­ing in­stru­ments through­out the build­ing, al­low­ing pre­cise ad­just­ments through­out the process.

Main­mark worked closely with the project’s engi­neer­ing team to suc­cess­fully re­sup­port and relevel the 6,500 square me­tre foun­da­tions in just 52 days – with­out re­quir­ing ex­ca­va­tion or the oc­cu­pants and ex­hibits to va­cate – on ten­dered time and bud­get. Main­mark re­stored the Christchurch Art Gallery’s de­sign lev­els to +/- 10mm across the en­tire foun­da­tion. Christchurch’s gallery is the largest build­ing glob­ally to be lif ted and relev­elled to this ex­tent, util­is­ing in­no­va­tive ground strength­en­ing by Jet Grout­ing, fol­lowed by JOG Com­puter-Con­trolled Grout­ing.

Newspapers in English

Newspapers from New Zealand

© PressReader. All rights reserved.