Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for vacuum water load pre-pressing internal pressing film ditch
The invention discloses a construction method of a vacuum water load preloading internal pressure film ditch, which comprises the following steps: when a water-permeable and air-permeable layer such as floury soil and sandy soil exists, sealing a curtain by adopting cement mixing piles at the periphery of a reinforcing area, arranging a plastic drainage plate, burying a vacuum system, and paving a PVC (Polyvinyl Chloride) sealing film to isolate the reinforcing area from the atmosphere, so as to form the vacuum water load preloading internal pressure film ditch. The method comprises the following steps of: forming a closed space through a vacuum system, exhausting air through a vacuum system to form a vacuum degree of more than 80kpa under a film, and continuously discharging pore water in a soil body through a drainage channel, so that soft soil is consolidated in advance, the purpose of reducing the later settlement of a foundation is achieved, and the whole soft foundation treatment area is greatly guaranteed by arranging a film pressing groove in the interior of the film pressing groove. The technical problem that differential settlement occurs in an existing vacuum preloading technology is solved, a sand cushion layer of a traditional vacuum preloading construction method is omitted, the sand-free technology guarantees the soft foundation treatment effect, the marine ecological environment of China is better protected, and excessive exploitation and use of sea sand resources are avoided.
本发明公开了一种真空水载预压内压膜沟施工方法，该真空水载预压内压膜沟施工方法通过在存在粉土、砂土等透水透气层时，加固区周边采取水泥搅拌桩密封帷幕，再打设塑料排水板、埋设真空系统，再铺设PVC密封膜使与其大气隔绝，形成密闭空间，再通过真空系统进行抽气，使膜下形成80kpa以上真空度，土体中的孔隙水不断由排水通道排出，从而使软土预先固结，从而达到以减少地基后期沉降的目的，通过对压膜沟内置，更大的保障整体软基处理区域，解决现有真空预压技术出现不均匀沉降的技术问题，免去传统真空预压工法的砂垫层，免砂技术保证了软基处理的效果，更保护了我国的海洋生态环境，避免了海砂资源的过度开采和使用。
Construction method for vacuum water load pre-pressing internal pressing film ditch
The invention discloses a construction method of a vacuum water load preloading internal pressure film ditch, which comprises the following steps: when a water-permeable and air-permeable layer such as floury soil and sandy soil exists, sealing a curtain by adopting cement mixing piles at the periphery of a reinforcing area, arranging a plastic drainage plate, burying a vacuum system, and paving a PVC (Polyvinyl Chloride) sealing film to isolate the reinforcing area from the atmosphere, so as to form the vacuum water load preloading internal pressure film ditch. The method comprises the following steps of: forming a closed space through a vacuum system, exhausting air through a vacuum system to form a vacuum degree of more than 80kpa under a film, and continuously discharging pore water in a soil body through a drainage channel, so that soft soil is consolidated in advance, the purpose of reducing the later settlement of a foundation is achieved, and the whole soft foundation treatment area is greatly guaranteed by arranging a film pressing groove in the interior of the film pressing groove. The technical problem that differential settlement occurs in an existing vacuum preloading technology is solved, a sand cushion layer of a traditional vacuum preloading construction method is omitted, the sand-free technology guarantees the soft foundation treatment effect, the marine ecological environment of China is better protected, and excessive exploitation and use of sea sand resources are avoided.
本发明公开了一种真空水载预压内压膜沟施工方法，该真空水载预压内压膜沟施工方法通过在存在粉土、砂土等透水透气层时，加固区周边采取水泥搅拌桩密封帷幕，再打设塑料排水板、埋设真空系统，再铺设PVC密封膜使与其大气隔绝，形成密闭空间，再通过真空系统进行抽气，使膜下形成80kpa以上真空度，土体中的孔隙水不断由排水通道排出，从而使软土预先固结，从而达到以减少地基后期沉降的目的，通过对压膜沟内置，更大的保障整体软基处理区域，解决现有真空预压技术出现不均匀沉降的技术问题，免去传统真空预压工法的砂垫层，免砂技术保证了软基处理的效果，更保护了我国的海洋生态环境，避免了海砂资源的过度开采和使用。
Construction method for vacuum water load pre-pressing internal pressing film ditch
一种真空水载预压内压膜沟施工方法
WU DUOYANG (Autor:in) / LYU CHAO (Autor:in) / ZHANG WEI (Autor:in)
27.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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