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四川一幢楼普遍现裂缝 在家常闻“咔嚓”声

2016-08-25 09:21:11   成都商报

鉴定报告还提到,技术人员在2、3单元变形缝处室外开挖深坑表明,地下水较丰富;在3单元101室内开挖深坑检查发现,基础与基槽之间空间部分充满无臭味的水。

该鉴定报告的结论是:6号楼房屋墙体裂缝主要系地基土长期处于水浸泡状态,导致作为基础持力层的基岩发生软化,承载力不足,房屋地基产生不均匀沉降所致;该问题已对房屋主体结构的安全性造成影响,应尽快对房屋地基及主体结构损伤采取措施进行维修加固处理。

住户追问

1、水来自哪儿?回应:修建前勘察未发现地下水,需进一步查找水源

住户们表示,鉴定中提到地基长期处于水浸泡状态而导致地基不均匀沉降,那水来自哪儿?修建时勘察单位又是否发现了地下水呢?

8月24日,成都商报记者找到该小区当年的勘察单位内江市建筑勘察设计院,相关负责人拿出该小区修建时的勘察报告。6号居民楼的地勘共勘察了2个工程地质剖面,均为斜坡泥岩结构,但均未发现地下水;当时地勘中发现小区有地下水,位于小区入口附近的冲沟地带,但距6号楼还有一定距离。该负责人说,鉴定报告中提到的6号居民楼地挖坑表明地下水丰富,可能是降水沉积进入地下,在6号楼台阶式基础下汇集而未流走。“但这只是推测,还需多方进一步查找原因。”

2、修建中是否偷工减料?回应:五方责任主体各有职责,需鉴定是否符合规范

3单元1楼胡先生家客厅内挖了一个深坑,这是检查房屋地基基础时挖开的。在建筑工地上班的该楼住户刘先生,根据挖坑内的现状,怀疑该楼修建中存在偷工减料的情况。他指出,地基中的条石砌筑未达到满浆满缝,缝隙可伸入手指;条石基础与地梁的距离未达到设计要求的18厘米,部分位置只有10~13厘米;地梁高度设计为24厘米,但部分位置只有20厘米。此外,1楼地板使用的是预制混凝土板,且两块预制混凝土板间夹缝中填塞砖块。

内江市住建局质安站工程师刘勇表示,下一步鉴定时会综合鉴定其是否符合技术规范。五方责任主体有相应的职责,鉴定后存在问题,是谁的责任就由谁承担。

3、到底该怎么办?住建部门:维修加固验收后可入住,如退房索赔需先鉴定主体结构质量

成都商报记者从内江市住建局获悉,目前,住建部门等已成立工作组处理此事,正在挨家挨户收集住户们的诉求,并进一步收集住户家中的裂缝现状。同时,已于24日加大了对该楼的观测频率,要求每天观测并出具报告。“但根据鉴定报告,居民楼在6个月观测期内测出的倾斜值,都在国家相关技术规范的允许范围内,所以短时间不会出现垮塌情况。”刘勇说。

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