A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cast-in-place box girder bridge floor transverse prestressed duct parallel grouting method
The invention relates to a cast-in-place box girder bridge floor transverse prestressed duct parallel grouting method. The method comprises the specific steps that preparation work before grouting is conducted; before grouting material is prepared, the whole device is driven by water to wet and clean equipment and pipelines, and whether the state of the equipment is normal or not is checked; clear water is directly injected from one end of the prestressed duct by using a grouting machine, and water injection is stopped until clear water flows out of a slurry outlet at the other end; starting to prepare materials, wherein the water-to-material ratio of the grouting material is 0.26-0.28; grouting operation is conducted, specifically, when slurry is prepared twice and material preparation is started for the third time, grouting is started, after slurry flows out of each prestressed duct slurry outlet hole for 5 s, a switch ball valve at the tail end is closed, an automatic pressure maintaining state is started, it is guaranteed that the duct grouting filling degree meets the requirement, then a grouting opening is closed, grouting of ten prestressed ducts is completed, pipelines are dismantled, and grouting is completed. And entering the next cycle. The construction efficiency is greatly improved, and the duct grouting quality is ensured.
本发明是一种现浇箱梁桥面横向预应力孔道并联压浆方法，具体步骤为：压浆前准备工作；在压浆料配制前，利用水把整个装置走一遍，润湿、清冼设备和管道，并检查了设备状态是否正常；利用压浆机直接从预应力孔道一端注入清水，直到另一端出浆口流出清水后停止注水，一方面是检验出浆管是否堵塞；开始配料，压浆料的水料比为0.26‑0.28；压浆作业，先配置2次浆料，开始进行第3次配料时，开始进行压浆，每个预应力孔道出浆孔流出浆体5s后，关闭尾端开关球阀进入自动保压状态，保证孔道压浆充盈度符合要求，再对压浆口进行封闭，10个预应力孔道压浆全部完成，拆除管路，进入下一个循环。本发明极大提高了施工效率，确保了孔道压浆质量。
Cast-in-place box girder bridge floor transverse prestressed duct parallel grouting method
The invention relates to a cast-in-place box girder bridge floor transverse prestressed duct parallel grouting method. The method comprises the specific steps that preparation work before grouting is conducted; before grouting material is prepared, the whole device is driven by water to wet and clean equipment and pipelines, and whether the state of the equipment is normal or not is checked; clear water is directly injected from one end of the prestressed duct by using a grouting machine, and water injection is stopped until clear water flows out of a slurry outlet at the other end; starting to prepare materials, wherein the water-to-material ratio of the grouting material is 0.26-0.28; grouting operation is conducted, specifically, when slurry is prepared twice and material preparation is started for the third time, grouting is started, after slurry flows out of each prestressed duct slurry outlet hole for 5 s, a switch ball valve at the tail end is closed, an automatic pressure maintaining state is started, it is guaranteed that the duct grouting filling degree meets the requirement, then a grouting opening is closed, grouting of ten prestressed ducts is completed, pipelines are dismantled, and grouting is completed. And entering the next cycle. The construction efficiency is greatly improved, and the duct grouting quality is ensured.
本发明是一种现浇箱梁桥面横向预应力孔道并联压浆方法，具体步骤为：压浆前准备工作；在压浆料配制前，利用水把整个装置走一遍，润湿、清冼设备和管道，并检查了设备状态是否正常；利用压浆机直接从预应力孔道一端注入清水，直到另一端出浆口流出清水后停止注水，一方面是检验出浆管是否堵塞；开始配料，压浆料的水料比为0.26‑0.28；压浆作业，先配置2次浆料，开始进行第3次配料时，开始进行压浆，每个预应力孔道出浆孔流出浆体5s后，关闭尾端开关球阀进入自动保压状态，保证孔道压浆充盈度符合要求，再对压浆口进行封闭，10个预应力孔道压浆全部完成，拆除管路，进入下一个循环。本发明极大提高了施工效率，确保了孔道压浆质量。
Cast-in-place box girder bridge floor transverse prestressed duct parallel grouting method
一种现浇箱梁桥面横向预应力孔道并联压浆方法
XU YANDONG (author) / LI JIANRU (author) / TIAN KEXING (author) / SHI HUBIN (author) / YANG HAOQIAN (author) / CHANG QING (author) / GAO HUAN (author) / XU LINLI (author) / ZHANG LEI (author) / YUE LEI (author)
2023-03-14
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
| European Patent Office | 2023
Box girder prestressed duct grouting compacting device and compacting method thereof
| European Patent Office | 2023