Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of prefabricated root key type sheet pile foundation
The invention discloses a construction method of a prefabricated root key type sheet pile foundation. The construction method comprises the steps of manufacturing a plurality of prefabricated root keys with one sharp ends; excavating a pit in undisturbed soil to a first preset depth; binding longitudinal bars and stirrups to form a first reinforcement cage and a second reinforcement cage, and reserving root key push holes for inserting the prefabricated root keys in the first reinforcement cage; descending the first reinforcement cage; pushing the prefabricated root keys into the first reinforcement cage in a layered mode, so that the outer side of the bottom of the first reinforcement cage is connected with the plurality of prefabricated root keys, and the prefabricated root keys extend to the outer side from the interior of the first reinforcement cage; binding and lowering the second reinforcement cage; and pouring concrete to the first preset depth and a second preset depth to forma stand column body and a pouring platform correspondingly. Through the construction method, an expanded base of a conventional foundation is omitted, and the embedded depth and diameter of the foundation are reduced; and accordingly, the construction safety risk, the construction difficulty and the engineering quantity of the foundation are reduced, the concrete transport engineering quantity inmountainous areas and other poor transportation areas is reduced, and the safety and reliability purposes are achieved.
本发明公开一种预制根键式板桩基础的施工方法，制作多个一端为尖端的预制根键；对原状土挖坑至的第一预定深度；绑扎纵筋与箍筋，形成第一钢筋笼和第二钢筋笼，第一钢筋笼预留用于插入所述预制根键的根键顶推孔；下放第一钢筋笼；分层进行预制根键的顶入，使得第一钢筋笼底部外侧连接若干预制根键，预制根键从第一钢筋笼的内部延伸到外侧；绑扎并下放第二钢筋笼；向第一预定深度和留第二预定深度一次浇筑混凝土成型分别形成立柱体和浇注平台。本发明取消了常规基础的扩底，减小了基础埋深和直径，从而降低基础施工安全风险、施工难度和工程量，减少山区等交通不利地区混凝土运输工程量，起到安全可靠的目的。
Construction method of prefabricated root key type sheet pile foundation
The invention discloses a construction method of a prefabricated root key type sheet pile foundation. The construction method comprises the steps of manufacturing a plurality of prefabricated root keys with one sharp ends; excavating a pit in undisturbed soil to a first preset depth; binding longitudinal bars and stirrups to form a first reinforcement cage and a second reinforcement cage, and reserving root key push holes for inserting the prefabricated root keys in the first reinforcement cage; descending the first reinforcement cage; pushing the prefabricated root keys into the first reinforcement cage in a layered mode, so that the outer side of the bottom of the first reinforcement cage is connected with the plurality of prefabricated root keys, and the prefabricated root keys extend to the outer side from the interior of the first reinforcement cage; binding and lowering the second reinforcement cage; and pouring concrete to the first preset depth and a second preset depth to forma stand column body and a pouring platform correspondingly. Through the construction method, an expanded base of a conventional foundation is omitted, and the embedded depth and diameter of the foundation are reduced; and accordingly, the construction safety risk, the construction difficulty and the engineering quantity of the foundation are reduced, the concrete transport engineering quantity inmountainous areas and other poor transportation areas is reduced, and the safety and reliability purposes are achieved.
本发明公开一种预制根键式板桩基础的施工方法，制作多个一端为尖端的预制根键；对原状土挖坑至的第一预定深度；绑扎纵筋与箍筋，形成第一钢筋笼和第二钢筋笼，第一钢筋笼预留用于插入所述预制根键的根键顶推孔；下放第一钢筋笼；分层进行预制根键的顶入，使得第一钢筋笼底部外侧连接若干预制根键，预制根键从第一钢筋笼的内部延伸到外侧；绑扎并下放第二钢筋笼；向第一预定深度和留第二预定深度一次浇筑混凝土成型分别形成立柱体和浇注平台。本发明取消了常规基础的扩底，减小了基础埋深和直径，从而降低基础施工安全风险、施工难度和工程量，减少山区等交通不利地区混凝土运输工程量，起到安全可靠的目的。
Construction method of prefabricated root key type sheet pile foundation
一种预制根键式板桩基础的施工方法
YUAN JUN (Autor:in) / WANG ZHENG (Autor:in) / WANG XUEMING (Autor:in) / ZHANG XIANYANG (Autor:in) / SHEN WEIWEI (Autor:in) / ZHANG YUAN (Autor:in) / WEN FAN (Autor:in) / LIU JUN (Autor:in) / WEI PENG (Autor:in) / HU CHENGCHENG (Autor:in)
31.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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