Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Static expansion breaking method for bored pile head
The invention discloses a static expansion breaking method for a bored pile head, and belongs to the field of pile head treatment of constructional engineering. According to the defects of an existingpile head breaking technology, the breaking method for breaking the pile head through a static expanding agent is provided. The method specifically comprises the following steps that when a cast-in-place pile reinforcement cage is bound, plastic foam cylinders sleeve top longitudinal bars in a bound mode, and the bottom and the top are bound and sealed through binding wires; after concrete pouring is finished and maintenance is finished, the positions of expansion holes filled with the expanding agent are marked in the top face of a pile according to a designed breaking scheme, and the top ofthe pile head is vertically drilled through an air leg type hand drill; after the drilling work is finished, dust and particles in the expansion holes are blown away through air pipes, the mixed expanding agent slurry is rapidly poured into the holes through a funnel until the holes are filled with the expanding agent slurry, and finally sandy soil is used for plugging; 24 hours after the expanding agent is poured, the pile head is broken under the action of an expansion pressure, and excavation and cleaning are conducted. According to the method, noise and dust pollution are reduced, construction procedures are saved, and the construction cost is saved.
本发明公开了一种钻孔灌注桩桩头静力膨胀破除方法，属于建筑工程桩头处理领域。根据现有桩头破除技术的缺陷，提出使用静态膨胀剂进行桩头破除的破除方法。具体包括以下步骤：绑扎灌注桩钢筋笼时，在顶部纵筋上套捆塑料泡沫筒，底部、顶部均用扎丝捆绑密闭；待混凝土浇灌结束并养护完成后，根据设计破除方案在桩顶面标注出充填膨胀剂的膨胀孔位置，利用气腿式手风钻在桩头顶部竖向钻孔；待钻孔工作结束后，用风管将膨胀洞内的粉尘、颗粒吹干净，用漏斗将拌制的膨胀剂浆液迅速倒入孔内灌满为止，最后用沙土进行封堵；膨胀剂灌注后24小时，桩头在膨胀压力作用下破碎，并开挖清理。该方法降低了噪音和粉尘污染，节省了施工工序，节约施工成本。
Static expansion breaking method for bored pile head
The invention discloses a static expansion breaking method for a bored pile head, and belongs to the field of pile head treatment of constructional engineering. According to the defects of an existingpile head breaking technology, the breaking method for breaking the pile head through a static expanding agent is provided. The method specifically comprises the following steps that when a cast-in-place pile reinforcement cage is bound, plastic foam cylinders sleeve top longitudinal bars in a bound mode, and the bottom and the top are bound and sealed through binding wires; after concrete pouring is finished and maintenance is finished, the positions of expansion holes filled with the expanding agent are marked in the top face of a pile according to a designed breaking scheme, and the top ofthe pile head is vertically drilled through an air leg type hand drill; after the drilling work is finished, dust and particles in the expansion holes are blown away through air pipes, the mixed expanding agent slurry is rapidly poured into the holes through a funnel until the holes are filled with the expanding agent slurry, and finally sandy soil is used for plugging; 24 hours after the expanding agent is poured, the pile head is broken under the action of an expansion pressure, and excavation and cleaning are conducted. According to the method, noise and dust pollution are reduced, construction procedures are saved, and the construction cost is saved.
本发明公开了一种钻孔灌注桩桩头静力膨胀破除方法，属于建筑工程桩头处理领域。根据现有桩头破除技术的缺陷，提出使用静态膨胀剂进行桩头破除的破除方法。具体包括以下步骤：绑扎灌注桩钢筋笼时，在顶部纵筋上套捆塑料泡沫筒，底部、顶部均用扎丝捆绑密闭；待混凝土浇灌结束并养护完成后，根据设计破除方案在桩顶面标注出充填膨胀剂的膨胀孔位置，利用气腿式手风钻在桩头顶部竖向钻孔；待钻孔工作结束后，用风管将膨胀洞内的粉尘、颗粒吹干净，用漏斗将拌制的膨胀剂浆液迅速倒入孔内灌满为止，最后用沙土进行封堵；膨胀剂灌注后24小时，桩头在膨胀压力作用下破碎，并开挖清理。该方法降低了噪音和粉尘污染，节省了施工工序，节约施工成本。
Static expansion breaking method for bored pile head
钻孔灌注桩桩头静力膨胀破除方法
QI QINGXUE (Autor:in) / KONG DESEN (Autor:in) / DAI XUANFENG (Autor:in) / GUAN SHENGJIE (Autor:in) / LI XIAOLONG (Autor:in) / GAO SHUAI (Autor:in) / WANG YANJUN (Autor:in) / WANG PAN (Autor:in) / LI CHANGZUO (Autor:in) / ZHANG WEIWEI (Autor:in)
05.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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