Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for underwater bottom sealing of open caisson
The invention provides a construction method for underwater bottom sealing of an open caisson. The construction method comprises the following steps of well bottom replacement filling, embedded drainage pipe embedding and precipitation installation. According to the construction method for underwater bottom sealing of the open caisson, an embedded drainage pipeline is utilized, a well bottom is subjected to drainage treatment firstly, then first-stage concrete pouring is conducted, after the concrete strength meets the requirement, the drainage pipeline is blocked, and then second-stage concrete pouring is conducted to the specified elevation to conduct bottom sealing on the open caisson, so that the concrete standard can be lowered; in the bottom sealing process, underwater special concrete is not needed, only the concrete needs to meet the anti-seepage requirement, then the well bottom after drainage is convenient to construct, the construction quality is easy to grasp, and subsequent well bottom water leakage accidents are prevented.
本发明提供了一种用于沉井水下封底的施工方法，包括以下步骤：井底换填‑埋设预埋排水管‑安装降水。本发明利用预埋排水管道，先对井底进行降水处理再进行一期混凝土的浇筑，待混凝土强度达到要求后对降水管道进行封堵再进行二期混凝土浇筑至指定高程的方式对沉井进行封底，可降低混凝土标准，封底时可以不需要水下特制混凝土，只需混凝土满足抗渗要求即可，其次，降水后的井底便于施工，容易把握施工质量，防止后续井底漏水事件发生。
Construction method for underwater bottom sealing of open caisson
The invention provides a construction method for underwater bottom sealing of an open caisson. The construction method comprises the following steps of well bottom replacement filling, embedded drainage pipe embedding and precipitation installation. According to the construction method for underwater bottom sealing of the open caisson, an embedded drainage pipeline is utilized, a well bottom is subjected to drainage treatment firstly, then first-stage concrete pouring is conducted, after the concrete strength meets the requirement, the drainage pipeline is blocked, and then second-stage concrete pouring is conducted to the specified elevation to conduct bottom sealing on the open caisson, so that the concrete standard can be lowered; in the bottom sealing process, underwater special concrete is not needed, only the concrete needs to meet the anti-seepage requirement, then the well bottom after drainage is convenient to construct, the construction quality is easy to grasp, and subsequent well bottom water leakage accidents are prevented.
本发明提供了一种用于沉井水下封底的施工方法，包括以下步骤：井底换填‑埋设预埋排水管‑安装降水。本发明利用预埋排水管道，先对井底进行降水处理再进行一期混凝土的浇筑，待混凝土强度达到要求后对降水管道进行封堵再进行二期混凝土浇筑至指定高程的方式对沉井进行封底，可降低混凝土标准，封底时可以不需要水下特制混凝土，只需混凝土满足抗渗要求即可，其次，降水后的井底便于施工，容易把握施工质量，防止后续井底漏水事件发生。
Construction method for underwater bottom sealing of open caisson
一种用于沉井水下封底的施工方法
LIU PENG (Autor:in) / YAN CHENGBIN (Autor:in) / HE JIANFENG (Autor:in) / CHEN XIAODONG (Autor:in) / SHI WENJIE (Autor:in)
10.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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