SMW is the abbreviation of the soil mixing wall, the construction method is also known as the steel cement soil mixing (pile) wall, is using multi-axis mixing pile machine in the project site one by one construction. The cement slurry or soil curing agent is spouted from the drill bit and mixed repeatedly with the foundation soil to form a continuous and complete underground wall with certain strength and stiffness without joints. Suitable for building foundation pit retaining wall, water curtain or soft foundation soil reinforcement.
What is theSMWThe method of pile?
SMWissoil mixing wallThe abbreviation, the construction method is also known as steel cement soil mixing (pile) wall, is a multi-axis pile mixing machine in the engineering site a piece of construction. The cement slurry or soil curing agent is spouted from the drill bit and mixed repeatedly with the foundation soil to form a continuous and complete underground wall with certain strength and stiffness without joints. Suitable for building foundation pit retaining wall, water curtain or soft foundation soil reinforcement.
SMWThe method of pileThe effect of pile
SMWGongfa pile was first built in1976It was introduced in Japan in 2005 and has been widely used in the United States, Canada, Germany, France, Singapore, Hong Kong, Thailand and other countries2010It was listed in the Construction Industry10A new technology (2010).
SMWThe method of pileThe construction sequence
1Guide trench excavation: determine whether there are obstacles and do mud ditch.
2, put the guide rail.
3And set construction marks.
4,SMWDrilling and mixing: drilling and stirring, stirring repeatedly, stirring when lifting.
5, placing stress reinforcing material (HSteel)
6, fixed stress reinforcing material.
7Completion of constructionSMW.
SMWThe method of pileThe main features
1, the construction does not disturb the adjacent soil, and will not cause the adjacent land subsidence, house tilt, road crack damage and underground facilities displacement.
2, the drill pipe has the characteristics of spiral propulsion wing and stirring wing alternating setting, with drilling and mixing repeatedly, can make cement system fortifying agent and soil to get full mixing, and the full length of the wall without joint, so that it has more reliable water stop than the traditional continuous wall, its permeability coefficientKCan be up to10-7cm/s.
3, it can be used in clay, silt, sand, gravel,Φ100Above pebble and uniaxial compressive strength60MPaThe following strata are applied.
4, can be wall thickness550～1300mm,Commonly used thickness600mm; The maximum depth of wall is65m,Depending on geological conditions, construction can go deeper.
5The required period is shorter than other construction methods. Under general geological conditions, each class can become a wall70～80㎡.
6And the volume of waste soil is far less than that of other construction methods.
7The inserted depth of section steel is generally less than the depth of stirring pile, which can be partially recycled and reused.
SMWThe method of pileConstruction equipment
Shanghai Qiangqiang Foundation Engineering Co., LTD. 's business covers foundation pit engineering, pile foundation engineering, land and waterFoundation treatment, slope treatment and other engineering fields. Around" Excellent technology, reliable process", construction fast "technical requirements,Is to provide customers with land, water foundation engineering technical consultation, construction services and other comprehensive solutions of the entity enterprise.Contact Number: 400-100-2850
