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A platform for research: civil engineering, architecture and urbanism
Method for constructing rotary excavating pile in soft soil stratum by using high-viscosity clay
The invention discloses a method for constructing a rotary excavating pile in a soft soil stratum by using high-viscosity clay. The method comprises the following steps: 1, leveling a site; 2, laying a clay cushion layer; 3, paying off and positioning; 4, burying the pile casing; 5, the rotary drilling rig performs hole forming; sixthly, first-time positive circulation hole cleaning is conducted; seventhly, a reinforcement cage and a guide pipe are hung and placed; and eighthly, secondary hole cleaning and concrete pouring are conducted, and rotary excavating pile construction is achieved on the soft soil stratum. By controlling the performance of the high-viscosity clay and the thickness of the high-viscosity clay cushion layer, the compaction performance is improved, the high-viscosity clay cushion layer can be used as a cushion layer for ensuring the construction stability of a pile machine and facilitating walking, and can also be used as a good mud main material when wall protection mud is manufactured, the hole wall is effectively reinforced, pile hole soil body collapse is prevented, the function of one-soil multi-purpose is achieved, and the construction cost is reduced. The cost for purchasing brick slag, compacting a brick slag cushion layer and purchasing bentonite for manufacturing wall protection slurry is reduced, the problems of high material purchasing cost and high transportation cost are solved, the budget cost is reduced for actual engineering, and the construction period is shortened.
本发明公开了一种利用高黏黏土在软土地层进行旋挖桩营造的方法，包括以下步骤：一、场地平整；二、铺设黏土垫层；三、放线定位；四、护筒埋设；五、旋挖钻机进成孔；六、第一次正循环清孔；七、吊放钢筋笼和导管；八、第二次清孔和灌注混凝土，在软土地层实现旋挖桩营造。本发明通过控制高黏黏土的性能和高黏黏土垫层的厚度，提高压实性，既可以作为保证桩机施工稳定性和行走方便垫层使用，又作为制作护壁泥浆时很好的泥浆主材使用，有效加固孔壁和防止成桩孔土体坍塌，达到了一土多用的功能，减少购买砖渣、压实砖渣垫层及购买制作护壁泥浆的膨润土的费用，解决了材料购买成本及运输成本高昂的问题，为实际工程降低预算成本，加快了施工工期。
Method for constructing rotary excavating pile in soft soil stratum by using high-viscosity clay
The invention discloses a method for constructing a rotary excavating pile in a soft soil stratum by using high-viscosity clay. The method comprises the following steps: 1, leveling a site; 2, laying a clay cushion layer; 3, paying off and positioning; 4, burying the pile casing; 5, the rotary drilling rig performs hole forming; sixthly, first-time positive circulation hole cleaning is conducted; seventhly, a reinforcement cage and a guide pipe are hung and placed; and eighthly, secondary hole cleaning and concrete pouring are conducted, and rotary excavating pile construction is achieved on the soft soil stratum. By controlling the performance of the high-viscosity clay and the thickness of the high-viscosity clay cushion layer, the compaction performance is improved, the high-viscosity clay cushion layer can be used as a cushion layer for ensuring the construction stability of a pile machine and facilitating walking, and can also be used as a good mud main material when wall protection mud is manufactured, the hole wall is effectively reinforced, pile hole soil body collapse is prevented, the function of one-soil multi-purpose is achieved, and the construction cost is reduced. The cost for purchasing brick slag, compacting a brick slag cushion layer and purchasing bentonite for manufacturing wall protection slurry is reduced, the problems of high material purchasing cost and high transportation cost are solved, the budget cost is reduced for actual engineering, and the construction period is shortened.
本发明公开了一种利用高黏黏土在软土地层进行旋挖桩营造的方法，包括以下步骤：一、场地平整；二、铺设黏土垫层；三、放线定位；四、护筒埋设；五、旋挖钻机进成孔；六、第一次正循环清孔；七、吊放钢筋笼和导管；八、第二次清孔和灌注混凝土，在软土地层实现旋挖桩营造。本发明通过控制高黏黏土的性能和高黏黏土垫层的厚度，提高压实性，既可以作为保证桩机施工稳定性和行走方便垫层使用，又作为制作护壁泥浆时很好的泥浆主材使用，有效加固孔壁和防止成桩孔土体坍塌，达到了一土多用的功能，减少购买砖渣、压实砖渣垫层及购买制作护壁泥浆的膨润土的费用，解决了材料购买成本及运输成本高昂的问题，为实际工程降低预算成本，加快了施工工期。
Method for constructing rotary excavating pile in soft soil stratum by using high-viscosity clay
一种利用高黏黏土在软土地层进行旋挖桩营造的方法
TANG ZHIMING (author) / RUAN YONGFEN (author) / YUAN YONG (author) / TANG ZHENJIE (author) / ZHANG XUDONG (author) / HU JINGKUI (author) / WU GANG (author) / ZHU JINGSHUAI (author) / WEN ZHICHAO (author)
2023-06-27
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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