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A platform for research: civil engineering, architecture and urbanism
Expandable soft soil area pile foundation structure and construction method thereof
The invention discloses an expandable soft soil area pile foundation structure and a construction method thereof. The structure comprises a pile body, an expansion head and an impact hammer, wherein the pile body is a hollow reinforced concrete prefabricated pipe pile; the reinforced concrete prefabricated pipe pile is uniformly provided with a ring of holes in the circumference of the pipe wall at intervals in the axis direction; eight holes are formed in each ring, the eight holes are uniformly formed in the circumference of the cross section of the reinforced concrete prefabricated pipe pile at intervals, and the holes are inclined holes with high inner parts and low outer parts; the expansion head is arranged in the holes, the length of the expansion head is larger than the depth of the holes, one end of the expansion head is flush with the outer wall of the reinforced concrete prefabricated pipe pile and is fixed by an iron wire, and the other end of the expansion head extends outof the holes and extends into a hollow inner cavity of the reinforced concrete prefabricated pipe pile; and the impact hammer is used for impacting the expansion head extending into the hollow innercavity of the reinforced concrete prefabricated pipe pile, so that the expansion head is driven into soft soil outside the pile body. According to the structure, the pressure-bearing area of a pile foundation is increased, the bearing capacity is improved, the construction cost is reduced, and the construction speed is increased.
本发明公开一种可扩展的软土地区桩基结构及其施工方法，该结构包括桩身、扩展头和冲击锤，桩身为空心的钢筋混凝土预制管桩，钢筋混凝土预制管桩沿轴线方向间隔均匀在管壁圆周上设置一环圈孔洞，每一环圈的孔洞数量为8个，8个孔洞在钢筋混凝土预制管桩横截面的圆周上间隔均匀设置，所述孔洞为内高外低的斜孔洞；所述扩展头设在孔洞内，且扩展头的长度大于孔洞的深度，扩展头的一端与钢筋混凝土预制管桩的外壁持平并用铁丝固定，另一端伸出孔洞伸向钢筋混凝土预制管桩的空心内腔；所述冲击锤用于冲击伸向钢筋混凝土预制管桩空心内腔的扩展头，使扩展头打入桩身外的软土内。该结构增加了桩基的承压面积，承载力提高，降低工程造价，提高施工速度。
Expandable soft soil area pile foundation structure and construction method thereof
The invention discloses an expandable soft soil area pile foundation structure and a construction method thereof. The structure comprises a pile body, an expansion head and an impact hammer, wherein the pile body is a hollow reinforced concrete prefabricated pipe pile; the reinforced concrete prefabricated pipe pile is uniformly provided with a ring of holes in the circumference of the pipe wall at intervals in the axis direction; eight holes are formed in each ring, the eight holes are uniformly formed in the circumference of the cross section of the reinforced concrete prefabricated pipe pile at intervals, and the holes are inclined holes with high inner parts and low outer parts; the expansion head is arranged in the holes, the length of the expansion head is larger than the depth of the holes, one end of the expansion head is flush with the outer wall of the reinforced concrete prefabricated pipe pile and is fixed by an iron wire, and the other end of the expansion head extends outof the holes and extends into a hollow inner cavity of the reinforced concrete prefabricated pipe pile; and the impact hammer is used for impacting the expansion head extending into the hollow innercavity of the reinforced concrete prefabricated pipe pile, so that the expansion head is driven into soft soil outside the pile body. According to the structure, the pressure-bearing area of a pile foundation is increased, the bearing capacity is improved, the construction cost is reduced, and the construction speed is increased.
本发明公开一种可扩展的软土地区桩基结构及其施工方法，该结构包括桩身、扩展头和冲击锤，桩身为空心的钢筋混凝土预制管桩，钢筋混凝土预制管桩沿轴线方向间隔均匀在管壁圆周上设置一环圈孔洞，每一环圈的孔洞数量为8个，8个孔洞在钢筋混凝土预制管桩横截面的圆周上间隔均匀设置，所述孔洞为内高外低的斜孔洞；所述扩展头设在孔洞内，且扩展头的长度大于孔洞的深度，扩展头的一端与钢筋混凝土预制管桩的外壁持平并用铁丝固定，另一端伸出孔洞伸向钢筋混凝土预制管桩的空心内腔；所述冲击锤用于冲击伸向钢筋混凝土预制管桩空心内腔的扩展头，使扩展头打入桩身外的软土内。该结构增加了桩基的承压面积，承载力提高，降低工程造价，提高施工速度。
Expandable soft soil area pile foundation structure and construction method thereof
一种可扩展的软土地区桩基结构及其施工方法
CHEN AIJUN (author) / LIU YANPING (author)
2020-12-08
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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