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分析强夯施工中强夯支护的特点和操作方法!

网址:http://www.sddhfjx.cn/   发布日期:2021-09-14 关注次数:
强夯跟强夯置换施工所利用的机械设备很常见,而且利用的技巧简单,夯击作用后地基承载力明显加强两到五倍左右,可有用避免沉降或者变形。重要的是施工周期可能缩短一半,用度能节俭一大局部。强夯支护法即就是利用较大力度的夯击,着重转变深基坑那个处所的土质,让土体的性质合乎基坑支护的须要。
The mechanical equipment used in dynamic compaction and dynamic compaction replacement construction is very common, and the utilization skills are simple. After compaction, the foundation bearing capacity is significantly strengthened by about two to five times, which can effectively avoid settlement or deformation. The important thing is that the construction period may be shortened by half, and the cost can be saved by a large part. Dynamic compaction support method is to use strong compaction to focus on changing the soil quality of deep foundation pit, so as to make the nature of soil meet the needs of foundation pit support.
强夯置换的施工方法简单来说就是强盛的夯击作使劲使碎石或者块石等等放弃资料连续一直的挤入到地基土层中,而后重复屡次的夯击以及填充土层,直到可能达到所须要的持力层,这时就能形成结实坚固的墩柱体。地基土层名义禁受的负载能 量会通过该墩柱体传输至持力层,那么就已达到强夯支护的土层特点标准。
强夯机出租
The construction method of dynamic compaction replacement is simply to make strong tamping to make the gravel or block stone continuously squeeze into the foundation soil layer, and then repeat tamping and filling the soil layer repeatedly until the required bearing layer can be reached. At this time, a solid pier column can be formed. The nominal load energy of the foundation soil layer will be transmitted to the bearing layer through the pier column, so it has reached the soil layer characteristic standard of dynamic compaction support.
对深基坑支护工程,强夯在履行强夯或者强夯置换作业之前,首先要进行止水帷幕的施工操作,而后等待该流程竣工之后,准备降水到深基坑,使深基坑地下水的位置得低于强夯地基名义一米五的高度,同时在东面西面北面这三个方向要依照一比一点二的比例将边坡天 然开挖到标高参数值的半米,接着履行回填土强夯施工,请求依照个别强夯的效力处理土钉支护工程。
For deep foundation pit support works, before dynamic compaction or dynamic compaction replacement, first carry out the construction operation of water stop curtain, and then wait for the completion of the process to prepare for dewatering to the deep foundation pit, so that the groundwater position of the deep foundation pit is lower than the nominal height of the dynamic compaction foundation by one meter and five meters, At the same time, in the three directions of the East, West and North, the natural slope shall be excavated to half a meter of the elevation parameter value according to the ratio of 1:1.2, and then the backfill dynamic compaction construction shall be performed. It is requested to deal with the soil nailing support project according to the effectiveness of individual dynamic compaction.
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