Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Underground diaphragm wall seam water stop strengthening measure and detection method
The invention discloses an underground diaphragm wall seam water stop strengthening measure and a detection method. The construction quality of an underground diaphragm wall, especially the joint water stop quality, is an important link for determining the safety of a foundation pit, and once mud is clamped in a joint, water leakage accidents are likely to happen. The method comprises the following steps that a cross-shaped steel plate rigid joint is adopted as an underground diaphragm wall joint, and a cross-shaped steel plate is longitudinally arranged with the same length as a reinforcement cage; angle steel is welded to the two ends of the cross-shaped steel plate connector and used for placing a grout stopping iron sheet, the longitudinal length of the iron sheet is equal to the length of the underground diaphragm wall body, and the width of the iron sheet is 900 mm; a steel sleeve valve pipe is pre-buried on a sealing rib of the reinforcement cage on the outer side of the cross-shaped steel plate at the joint of each underground diaphragm wall; after construction of the diaphragm wall is finished, three triple-pipe high-pressure jet grouting piles are driven on the outer side of a joint in a delta shape, and the pile bottoms penetrate into the position below the bottom of the foundation pit by 6.0 m; and after the concrete of the diaphragm wall reaches the design strength, the water stop quality of the joint can be detected through the pre-embedded sleeve valve pipe. The device and the method are used for underground diaphragm wall seam waterstop reinforcement and detection.
地下连续墙墙缝止水加强措施及检测方法。地连墙的施作质量，尤其是接缝止水质量，是决定基坑安全的重要环节，一旦接缝夹泥，将易发生渗漏水事故。本发明包括如下步骤：地连墙接头采用十字钢板刚性接头，十字钢板纵向与钢筋笼等长布置；十字钢板接头两端焊接角钢，用于安放止浆铁皮，铁皮纵向长度与地连墙墙体等长，铁皮宽度为900mm；每幅地连墙接缝处，十字钢板外侧钢筋笼封口筋上均预埋1根钢质袖阀管；地连墙施工结束后在接缝外侧品字型打设三根三重管高压旋喷桩，桩底深入基坑底以下6.0m；地连墙混凝土达到设计强度后即可通过预埋的袖阀管对接缝止水质量进行检测。本发明用于地下连续墙墙缝止水加强及检测。
Underground diaphragm wall seam water stop strengthening measure and detection method
The invention discloses an underground diaphragm wall seam water stop strengthening measure and a detection method. The construction quality of an underground diaphragm wall, especially the joint water stop quality, is an important link for determining the safety of a foundation pit, and once mud is clamped in a joint, water leakage accidents are likely to happen. The method comprises the following steps that a cross-shaped steel plate rigid joint is adopted as an underground diaphragm wall joint, and a cross-shaped steel plate is longitudinally arranged with the same length as a reinforcement cage; angle steel is welded to the two ends of the cross-shaped steel plate connector and used for placing a grout stopping iron sheet, the longitudinal length of the iron sheet is equal to the length of the underground diaphragm wall body, and the width of the iron sheet is 900 mm; a steel sleeve valve pipe is pre-buried on a sealing rib of the reinforcement cage on the outer side of the cross-shaped steel plate at the joint of each underground diaphragm wall; after construction of the diaphragm wall is finished, three triple-pipe high-pressure jet grouting piles are driven on the outer side of a joint in a delta shape, and the pile bottoms penetrate into the position below the bottom of the foundation pit by 6.0 m; and after the concrete of the diaphragm wall reaches the design strength, the water stop quality of the joint can be detected through the pre-embedded sleeve valve pipe. The device and the method are used for underground diaphragm wall seam waterstop reinforcement and detection.
地下连续墙墙缝止水加强措施及检测方法。地连墙的施作质量，尤其是接缝止水质量，是决定基坑安全的重要环节，一旦接缝夹泥，将易发生渗漏水事故。本发明包括如下步骤：地连墙接头采用十字钢板刚性接头，十字钢板纵向与钢筋笼等长布置；十字钢板接头两端焊接角钢，用于安放止浆铁皮，铁皮纵向长度与地连墙墙体等长，铁皮宽度为900mm；每幅地连墙接缝处，十字钢板外侧钢筋笼封口筋上均预埋1根钢质袖阀管；地连墙施工结束后在接缝外侧品字型打设三根三重管高压旋喷桩，桩底深入基坑底以下6.0m；地连墙混凝土达到设计强度后即可通过预埋的袖阀管对接缝止水质量进行检测。本发明用于地下连续墙墙缝止水加强及检测。
Underground diaphragm wall seam water stop strengthening measure and detection method
地下连续墙墙缝止水加强措施及检测方法
LIU YUNSHENG (Autor:in) / LIANG YU (Autor:in) / LYU JIRUI (Autor:in)
07.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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