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【简答题】
某公司中标承建中压A燃气管线工程，管道直径DN30mm，长26km，合同价3600万元。 管道沟槽开挖过程中，遇到地质勘察时未探明的废弃砖沟，经现场监理工程师口头同意，施工项目部组织人员、机具及时清除了砖沟，进行换填级配砂石处理，使工程增加了合同外的工作量。 项目部就此向发包方提出计量支付，遭到监理工程师拒绝。 监理工程师在工程检查中发现问题： （1）现场正在焊接作业的两名焊工是公司临时增援人员，均已在公司总部从事管理岗位半年以上； （2）管道准备连接施焊的数个坡口处有油溃等杂物。检查后，向项目部发出整改通知。 项目部处理废弃砖沟在是否妥当？如不妥当，写出正确的程序。
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