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Vacuum drainage combined water-borne preloading consolidation foundation construction method
The invention relates to the technical field of soft soil foundation reinforcement, and provides a vacuum drainage combined water-borne preloading consolidation foundation construction method. The method comprises the following steps that A, the position of a foundation to be consolidated is determined, sundries on the surface of the foundation to be consolidated are removed, and the surface is leveled; B, a sandy gravel cushion layer is laid on the foundation to be consolidated, and a drainage plate is arranged downwards from the sandy gravel cushion layer; a fine sand water collecting layeris laid on the sandy gravel cushion layer, a drainage filter pipe is arranged on the fine sand water collecting layer, the drainage filter pipe is connected with a main water pumping pipe, and the main water pumping pipe is connected with a vacuum jet pump; C, the fine sand water collecting layer is laid on the drainage filter pipe and the water pumping main pipe, and a first sealing film is laidon the fine sand water collecting layer; D, a cofferdam is constructed on the first sealing film, the cofferdam is correspondingly located above the peripheral ring of the foundation to be consolidated, a second sealing film is laid in the cofferdam, the vacuum jet pump is connected with a drainage pipe, and the drainage pipe extends into the cofferdam; and E, the vacuum jet pump starts to work, and the to-be-solidified foundation below the first sealing film is vacuumized.
本发明涉及软土地基加固技术领域，提供了一种真空排水联合水载预压固结地基施工方法。该方法包括如下步骤：A、确定待固结地基位置，清理待固结地基表面杂物对其表面进行整平；B、在待固结地基上铺设砂卵石垫层，由砂卵石垫层向下打设排水板；在砂卵石垫层上铺设细砂集水层，在细砂集水层上布设排水滤管，排水滤管与抽水主管连接，抽水主管与真空射流泵连接；C、在排水滤管与抽水主管上再铺设细砂集水层，在细砂集水层上铺设密封膜一；D、在密封膜一上施工围堰，围堰对应处于待固结地基的外周圈的上方，在围堰内铺设密封膜二，真空射流泵连接有排水管，排水管延伸至围堰内；E、真空射流泵开始工作，对密封膜一下方的待固结地基抽真空。
Vacuum drainage combined water-borne preloading consolidation foundation construction method
The invention relates to the technical field of soft soil foundation reinforcement, and provides a vacuum drainage combined water-borne preloading consolidation foundation construction method. The method comprises the following steps that A, the position of a foundation to be consolidated is determined, sundries on the surface of the foundation to be consolidated are removed, and the surface is leveled; B, a sandy gravel cushion layer is laid on the foundation to be consolidated, and a drainage plate is arranged downwards from the sandy gravel cushion layer; a fine sand water collecting layeris laid on the sandy gravel cushion layer, a drainage filter pipe is arranged on the fine sand water collecting layer, the drainage filter pipe is connected with a main water pumping pipe, and the main water pumping pipe is connected with a vacuum jet pump; C, the fine sand water collecting layer is laid on the drainage filter pipe and the water pumping main pipe, and a first sealing film is laidon the fine sand water collecting layer; D, a cofferdam is constructed on the first sealing film, the cofferdam is correspondingly located above the peripheral ring of the foundation to be consolidated, a second sealing film is laid in the cofferdam, the vacuum jet pump is connected with a drainage pipe, and the drainage pipe extends into the cofferdam; and E, the vacuum jet pump starts to work, and the to-be-solidified foundation below the first sealing film is vacuumized.
本发明涉及软土地基加固技术领域，提供了一种真空排水联合水载预压固结地基施工方法。该方法包括如下步骤：A、确定待固结地基位置，清理待固结地基表面杂物对其表面进行整平；B、在待固结地基上铺设砂卵石垫层，由砂卵石垫层向下打设排水板；在砂卵石垫层上铺设细砂集水层，在细砂集水层上布设排水滤管，排水滤管与抽水主管连接，抽水主管与真空射流泵连接；C、在排水滤管与抽水主管上再铺设细砂集水层，在细砂集水层上铺设密封膜一；D、在密封膜一上施工围堰，围堰对应处于待固结地基的外周圈的上方，在围堰内铺设密封膜二，真空射流泵连接有排水管，排水管延伸至围堰内；E、真空射流泵开始工作，对密封膜一下方的待固结地基抽真空。
Vacuum drainage combined water-borne preloading consolidation foundation construction method
真空排水联合水载预压固结地基施工方法
ZHAO LICAI (author)
2020-05-29
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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