工程合同修改協議合同編號：__________parties：withrespecttotheengineeringcontractnumbered：__________，bothpartiesagreetomakethefollowingmodificationsandsupplements：article1：scopeofwork（1）preparationofdesigndocumentsandconstructiondrawings；（2）procurementofconstructionmaterialsandequipment；（3）constructionwork；1.2basedontherequirementsoftheprincipal（甲方），bothpartiesagreethatthecontractorshalladdthefollowingworkitemstotheoriginalcontract：（1）providingtechnicalsupportandguidancefortheoperationandmaintenanceoftheproject；（2）trainingthepersonneloftheprincipalintheoperationandmaintenanceoftheproject；article2：timeschedule（1）thedesignandconstructionperiodoftheprojectisextended；（2）theprocurementofconstructionmaterialsandequipmentisdelayed；（3）otherreasonsthatbothpartiesagreeupon；article3：changeofcontractprice3.1theoriginalcontractpriceis：__________（hereinafterreferredtoas"theoriginalcontractprice"）；3.2bothpartiesagreethatthefollowingitemsshallbeaddedtothecontractprice：（1）additionalexpensesfortheexpandedscopeofwork；（2）expensesfortechnicalsupportandguidancefortheoperationandmaintenanceoftheproject；（3）expensesfortrainingthepersonneloftheprincipalintheoperationandmaintenanceoftheproject；3.3thenewcontractpriceafterthemodificationshallbe：__________（hereinafterreferredtoas"thenewcontractprice"），andthepaymentmethodandscheduleshallbeadjustedaccordingly；article4：qualityassurance4.1theoriginalcontractprovidesthattheprojectshallmeettherelevantnationalstandardsandspecifications，andthecontractorshallberesponsibleforthequalityoftheproject；4.2bothpartiesagreethatthequalityassurancemeasuresshallbestrengthenedasfollows：（1）thecontractorshallstrictlyimplementthequalitymanagementsystemandqualityinspectionmeasures；（2）thecontractorshallprovidetechnicaldocumentationandconstructiondrawingsthatmeettherelevantnationalstandardsandspecifications；article5：disputesettlement5.1anydisputesarisingoutoforinconnectionwiththiscontractshallbefirstlysettledthroughfriendlynegotiation；5.2ifthenegotiationfails，eitherpartymaysubmitthedisputetothepeople'scourtwithjurisdictionovertheplaceofperformanceofthiscontract；article6：otherprovisions6.1thismodificationandsupplementshallbeeffectiveasofthedateofsigningthisagreement；6.2thismodificationandsupplementshallbeannexedtotheoriginalcontractasanintegralpart，andshallhavethesamelegaleffectastheoriginalcontract；6.3anyamendmentorsupplementtothiscontractshallbemadeinwritingandsignedbothparties；6.4thiscontractmaybeexecutedinoneormorecounterparts，eachofwhichshallbedeemedanoriginalandallofwhichtogethershallconstituteoneandthesameinstrument；6.5theheadingsofthearticlesinthiscontractareforconvenienceonlyandshallnotaffecttheinterpretationoftheprovisionsofthearticles；6.6thiscontractshallbegovernedthelawsofthepeople'srepublicofchina.inwitnesswhereof，thepartiesheretohavecausedthisagreementtobeexecutedasofthedatefirstabovewritten.partya：（signatureorseal）attorneyinfact：（signatureorseal）partyb：（signatureorseal一、附件列表：1.工程合同原始文檔2.設計圖紙和施工圖紙3.工程項目的技術規格書4.工程項目的材料和設備清單5.工程項目的進度計劃和時間表6.合同價格明細表7.質量保證文件8.施工過程中的變更和修改記錄9.工程項目的驗收和移交記錄10.工程項目的維護和運營手冊二、違約行為及認定：1.甲方未按時支付合同款項2.乙方未按照合同約定完成工作3.乙方未按照合同約定提供材料和設備4.乙方未按照合同約定完成工程項目的質量和標準5.乙方未按照合同約定時間完成工程項目6.甲方未按照合同約定支付預付款或進度款7.甲方未按照合同約定提供施工場地和條件8.甲方未按照合同約定參與工程項目的驗收和移交9.乙方未按照合同約定提供技術支持和指導10.乙方未按照合同約定參與工程項目的維護和運營三、法律名詞及解釋：1.甲方：指合同中的委托人或項目發起人2.乙方：指合同中的承包人或執行人3.工程合同：指雙方為完成特定的工程項目而達成的協議4.設計圖紙：指工程項目的設計文件，包括平面圖、立面圖、剖面圖等5.施工圖紙：指工程項目的施工文件，包括施工圖、施工說明等6.合同價格：指雙方約定的工程項目的總價格7.質量保證：指乙方對工程項目的質量承擔的責任和保證8.違約行為：指合同一方未履行合同約定的義務或違反合同條款的行為9.違約責任：指違約方因違約行為而應承擔的法律責任10.爭議解決：指雙方通過協商或法律途徑解決合同爭議的方式四、執行中遇到的問題及解決辦法：1.問題：甲方未按時支付合同款項解決辦法：乙方應及時與甲方溝通，催促其支付合同款項，如甲方仍不支付，乙方可以依法采取相應的措施，如暫停施工或向法院提起訴訟。2.問題：乙方未按照合同約定完成工作解決辦法：甲方應及時與乙方溝通，指出存在的問題，要求乙方盡快整改并按照合同約定完成工作。如乙方仍不整改，甲方可以依法采取相應的措施，如暫停支付合同款項或向法院提起訴訟。3.問題：乙方未按照合同約定提供材料和設備解決辦法：甲方應及時與乙方溝通，指出存在的問題，要求乙方盡快提供相應的材料和設備。如乙方仍不提供，甲方可以依法采取相應的措施，如暫停施工或向法院提起訴訟。4.問題：乙方未按照合同約定完成工程項目的質量和標準解決辦法：甲方應及時與乙方溝通，指出存在的問題，要求乙方盡快整改并按照合同約定完成工程項目的質量和標準。如乙方仍不整改，甲方可以依法采取相應的措施，如暫停支付合同款項或向法院提起訴訟。5.問題：乙方未按照合同約定時間完成工程項目解決辦法