Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a construction method of a capsule-type expanded head anchor cable support for a foundation pit and relates to the field of anchor cables. According to a technical scheme, thesupport comprises an anchor hole, an enclosure structure, an anchor bar, a reinforced cement-soil pile and an anchorage device, wherein the anchor hole is formed in a side slope, and the enclosure structure is arranged on a surface layer, where an orifice of the anchor hole is located, of the side slope; the front end of the anchor bar extends from the orifice of the anchor hole to the interior ofthe anchor hole, and an anchor plate is fixed to the front end of the anchor bar; the reinforced cement-soil pile is arranged in the anchor hole in a high-pressure jet grouting mode, the reinforced cement-soil pile is provided with an expanded head segment and an expanded diameter segment, the expanded head segment is arranged corresponding to the anchor plate, and the expanded diameter segment is located in the middle of the anchor hole; and the anchorage device is fixed onto the anchor bar and abuts against the enclosure structure towards one side of the anchor hole. Through the large-diameter cement-soil pile formed by high-pressure jet grouting, the mechanical properties of loose soft soil can be improved, the soft soil is changed into a cement-soil body with high strength, and the shear resistance of a slip surface of the soil body is effectively improved.
本发明公开了基坑囊式扩大头锚索支护施工方法，涉及锚索领域，为达到上述目的，本发明的技术方案包括锚孔、围护结构、锚筋、加筋水泥土桩和锚具；锚孔设置于边坡内，锚孔的孔口所在边坡表层设有围护结构；锚筋的前端自锚孔的孔口就延伸至锚孔的内部，锚筋的前端固定有锚锭板；锚孔的内部高压旋喷有加筋水泥土桩，加筋水泥土桩设有扩大头段和扩大径段，扩大头段对应锚锭板设置，扩大径段位于锚孔的中部设置；锚具固定于锚筋上，并且锚具向锚孔一侧抵靠至围护结构。通过高压旋喷形成的大直径水泥土桩体，可对松散软土的力学性能作出改善，使软土改变成具有较高强度的水泥土体，有效提高土体滑移面抗剪能力。
The invention discloses a construction method of a capsule-type expanded head anchor cable support for a foundation pit and relates to the field of anchor cables. According to a technical scheme, thesupport comprises an anchor hole, an enclosure structure, an anchor bar, a reinforced cement-soil pile and an anchorage device, wherein the anchor hole is formed in a side slope, and the enclosure structure is arranged on a surface layer, where an orifice of the anchor hole is located, of the side slope; the front end of the anchor bar extends from the orifice of the anchor hole to the interior ofthe anchor hole, and an anchor plate is fixed to the front end of the anchor bar; the reinforced cement-soil pile is arranged in the anchor hole in a high-pressure jet grouting mode, the reinforced cement-soil pile is provided with an expanded head segment and an expanded diameter segment, the expanded head segment is arranged corresponding to the anchor plate, and the expanded diameter segment is located in the middle of the anchor hole; and the anchorage device is fixed onto the anchor bar and abuts against the enclosure structure towards one side of the anchor hole. Through the large-diameter cement-soil pile formed by high-pressure jet grouting, the mechanical properties of loose soft soil can be improved, the soft soil is changed into a cement-soil body with high strength, and the shear resistance of a slip surface of the soil body is effectively improved.
本发明公开了基坑囊式扩大头锚索支护施工方法，涉及锚索领域，为达到上述目的，本发明的技术方案包括锚孔、围护结构、锚筋、加筋水泥土桩和锚具；锚孔设置于边坡内，锚孔的孔口所在边坡表层设有围护结构；锚筋的前端自锚孔的孔口就延伸至锚孔的内部，锚筋的前端固定有锚锭板；锚孔的内部高压旋喷有加筋水泥土桩，加筋水泥土桩设有扩大头段和扩大径段，扩大头段对应锚锭板设置，扩大径段位于锚孔的中部设置；锚具固定于锚筋上，并且锚具向锚孔一侧抵靠至围护结构。通过高压旋喷形成的大直径水泥土桩体，可对松散软土的力学性能作出改善，使软土改变成具有较高强度的水泥土体，有效提高土体滑移面抗剪能力。
Capsule-type expanded head anchor cable support structure for foundation pit and construction method
基坑囊式扩大头锚索支护结构及施工方法
YANG BIN (Autor:in)
18.09.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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