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九、用水泥灌浆、喷锚技术或现浇混凝土加固桥梁水泥灌浆常用于修补裂缝,或填充结构物内部的空隙(例70、71),也有用于加固墩台基础或桩周受冲刷的河床(例72、73),当内部空隙较大时,为节约水泥,常先以混凝土填充后再灌浆,如用细麻袋包装混凝土填塞墩基空隙,再沿基础四周浇筑水下混凝土后灌浆加固河床(例72),或抛填片石加固河床(例74);以混凝土包围木桩基础(例75),以混凝土包围钢筋混凝土桩墩(例76)等。
Nine, with cement grouting, spray anchor technology or cast-in-place concrete bridge cement grouting is often used to repair cracks, or fill the gap within the structure (eg 70,71), but also for strengthening the abutment foundation or washed by the river bed (Examples 72, 73). When the internal clearance is large, in order to save the cement, it is often filled with concrete before grouting, such as filling the pier foundation gap with concrete with sack bags, pouring and consolidating the riverbed after pouring underwater concrete around the foundation (Example 72), or trowel reinforcement of the riverbed (Example 74); surround the foundation with concrete (Example 75); surround concrete with reinforced concrete (Example 76);