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A platform for research: civil engineering, architecture and urbanism
Construction method of ultra-long plain soil compaction pile in low-water-content collapsible loess area
The invention discloses a construction method of a super-long plain soil compaction pile in a low-water-content collapsible loess area, which comprises the working procedures of construction preparation, site leveling, surveying and setting-out, equipment assembly in place, water injection hole guiding, hole forming, sand filling, water injection, water content detection, compaction pile construction, detection and the like, and adopts a short rod long spiral short rod guiding hole and is driven by a motor; secondary hole forming is conducted through a pile sinking pipe with the corresponding length, tamping sinking is conducted through a diesel hammer, and water injection sinking pipe lengthening is conducted according to an ultra-long pile sinking pipe lengthening mode; when a plain soil compaction pile scheme is adopted for construction and foundation treatment in an ultra-thick collapsible loess area, how to carry out humidification and compaction pile construction on a foundation with quality and quantity guaranteed under the condition of geological low water content is solved, and particularly the problem that conventional equipment and technologies cannot carry out treatment is solved.
本发明公开了一种低含水率湿陷性黄土地区超长素土挤密桩施工方法，包括施工准备、平整场地、测量放线、设备组装就位、注水孔引孔、成孔、灌砂、注水、含水率检测、挤密桩施工、检测等工序，并采用短杆长螺旋短杆引孔，以及电机带动，再用相应长度沉桩管二次成孔，用柴油锤夯击下沉，注水沉管接长按照一种超长沉桩管接长方式进行连接；解决了在超厚度湿陷性黄土地区施工，地基处理采用素土挤密桩方案时，在地质低含水率情况下如何保质保量对地基进行增湿，挤密桩施工，尤其是解决常规设备和技术无法处理的问题。
Construction method of ultra-long plain soil compaction pile in low-water-content collapsible loess area
The invention discloses a construction method of a super-long plain soil compaction pile in a low-water-content collapsible loess area, which comprises the working procedures of construction preparation, site leveling, surveying and setting-out, equipment assembly in place, water injection hole guiding, hole forming, sand filling, water injection, water content detection, compaction pile construction, detection and the like, and adopts a short rod long spiral short rod guiding hole and is driven by a motor; secondary hole forming is conducted through a pile sinking pipe with the corresponding length, tamping sinking is conducted through a diesel hammer, and water injection sinking pipe lengthening is conducted according to an ultra-long pile sinking pipe lengthening mode; when a plain soil compaction pile scheme is adopted for construction and foundation treatment in an ultra-thick collapsible loess area, how to carry out humidification and compaction pile construction on a foundation with quality and quantity guaranteed under the condition of geological low water content is solved, and particularly the problem that conventional equipment and technologies cannot carry out treatment is solved.
本发明公开了一种低含水率湿陷性黄土地区超长素土挤密桩施工方法，包括施工准备、平整场地、测量放线、设备组装就位、注水孔引孔、成孔、灌砂、注水、含水率检测、挤密桩施工、检测等工序，并采用短杆长螺旋短杆引孔，以及电机带动，再用相应长度沉桩管二次成孔，用柴油锤夯击下沉，注水沉管接长按照一种超长沉桩管接长方式进行连接；解决了在超厚度湿陷性黄土地区施工，地基处理采用素土挤密桩方案时，在地质低含水率情况下如何保质保量对地基进行增湿，挤密桩施工，尤其是解决常规设备和技术无法处理的问题。
Construction method of ultra-long plain soil compaction pile in low-water-content collapsible loess area
一种低含水率湿陷性黄土地区超长素土挤密桩施工方法
ZHANG ZHIZHONG (author) / ZHONG JIN (author) / LI LIN (author) / XU DAWEN (author) / ZHAO PENGFEI (author) / LI XIUHU (author)
2023-06-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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