浅析淤泥质土大规模施工技术
浅析淤泥质土大规模施工技术
摘要:由于淤泥质土具有软塑、流动、不稳定的特点,在大规模施工过程中很容易受到外力影响而产生流动推力,导致工程桩与维护体结构遭到破坏,造成工程事故。大面积淤泥层的存在增加了地质条件的不可遇见性,为了解决上述问题,研究淤泥质土大规模施工技术具有非常重要的意义。本文在研究盐龙湖饮用水源生态净化土方开挖工程施工的基础上对淤泥质土大规模施工技术进行简单探讨。
关键词:淤泥质土 施工技术
Abstract: due to the muddy soil has RuanSu, flow, not stable characteristics, in large-scale construction process is very vulnerable to external force influence and produce flow thrust, lead to engineering piles and maintain body structure is destroyed, engineering accident caused. Large area of the existence of silt layer increased geological conditions do not meet sex, in order to solve the above problem, research and muddy soil mass construction technology has the extremely vital significance. This paper studies the salt lake in drinking water purification turkmen excavation engineering construction ecological on the base of the muddy soil mass construction technology for simple discussion.
Key words: and muddy soil construction technology
1制定适合的施工降水方案
本工程施工降排水工程包括:初期积水抽排、基坑表面积水(降雨、地表渗水及其它途径来水)抽排,办公、生活区汇水排除四个方面。土方施工时,排水系统布置采用深龙沟排水,在施工现场布置六条排水主龙沟,主龙沟低于开挖面1m。其余支龙沟水汇到主龙沟,最终排入外侧河道,办公、生活区废水经净化后排入生活区的废水沟里,废水经过处理合格后,就近排入外侧河道。排水龙沟网布置,以避免或减少运输道路等干扰为原则,与土方施工降排水结合,合理布设。
1.1 施工区降排水
1.1.1初期积水抽排
进场初期本工程施工用电难以接入,采用了2台套柴油动力泥浆泵进行沟塘积水抽排,将积水排入外侧河道中,将施工场内的积水抽排干净,为前期的临时设施,施工主道路施工提供作业面。