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A platform for research: civil engineering, architecture and urbanism
Double-tube vibration impact immersed tube gravel pile or cast-in-place concrete pile construction process and equipment
The invention discloses a double-pipe vibration impact sinking pipe gravel pile or cast-in-place concrete pile construction technology and equipment, and relates to the technical field of foundation treatment. The construction technology comprises the following steps that 1, hole guiding equipment is in place; (2) the holes are led to the designed pile bottom elevation through the double pipes, specifically, a vibratory hammer is started, the vibratory hammer drives the inner pipe and the outer pipe to synchronously sink, and the inner pipe and the outer pipe are sequentially vibrated to sink into a block gravel filling layer, a soft soil layer and a supporting layer from top to bottom to form holes till the designed pile bottom elevation is reached; (3) gravel or concrete is backfilled, specifically, an inner pipe is pulled out through a vibratory hammer, an outer pipe protection wall is reserved in a hole, and then the hole is backfilled with gravel or concrete till the designed elevation of the pile top is reached; and 4) vibrating and pulling the outer pipe and combining the inner pipe and the outer pipe. The equipment comprises a vibratory hammer, a pile gripper, an inner pipe and an outer pipe, the inner pipe sleeves the outer pipe to form an inner sleeve and an outer sleeve, the inner pipe and the outer pipe are fixed through the pile gripper, and the vibratory hammer is arranged at the top of the pile gripper. The problem that an existing vibro-replacement gravel pile or a cast-in-place concrete pile is difficult to penetrate through a block gravel layer is solved.
本发明公开了一种双管振动冲击沉管碎石桩或混凝土灌注桩施工工艺及设备，涉及地基处理技术领域，施工工艺包括以下步骤：步骤1)引孔设备就位；步骤2)双管引孔至设计桩底标高：开启振动锤，振动锤带动内管和外管同步下沉，并自上而下依次振沉至块碎石填土层、软土层、持力层中成孔，直至达到设计桩底标高；步骤3)回填碎石或混凝土：振动锤拔出内管，在孔内留下外管护壁，接着孔内回填碎石或混凝土直至桩顶设计标高；步骤4)振拔外管，组合内外管。设备包括振动锤、夹桩器、内管和外管，内管套设于外管外形成内外双套管，内管与外管经夹桩器固定，夹桩器顶部设有振动锤。本发明解决了目前振冲碎石桩或混凝土灌注桩难以穿透块碎石层的问题。
Double-tube vibration impact immersed tube gravel pile or cast-in-place concrete pile construction process and equipment
The invention discloses a double-pipe vibration impact sinking pipe gravel pile or cast-in-place concrete pile construction technology and equipment, and relates to the technical field of foundation treatment. The construction technology comprises the following steps that 1, hole guiding equipment is in place; (2) the holes are led to the designed pile bottom elevation through the double pipes, specifically, a vibratory hammer is started, the vibratory hammer drives the inner pipe and the outer pipe to synchronously sink, and the inner pipe and the outer pipe are sequentially vibrated to sink into a block gravel filling layer, a soft soil layer and a supporting layer from top to bottom to form holes till the designed pile bottom elevation is reached; (3) gravel or concrete is backfilled, specifically, an inner pipe is pulled out through a vibratory hammer, an outer pipe protection wall is reserved in a hole, and then the hole is backfilled with gravel or concrete till the designed elevation of the pile top is reached; and 4) vibrating and pulling the outer pipe and combining the inner pipe and the outer pipe. The equipment comprises a vibratory hammer, a pile gripper, an inner pipe and an outer pipe, the inner pipe sleeves the outer pipe to form an inner sleeve and an outer sleeve, the inner pipe and the outer pipe are fixed through the pile gripper, and the vibratory hammer is arranged at the top of the pile gripper. The problem that an existing vibro-replacement gravel pile or a cast-in-place concrete pile is difficult to penetrate through a block gravel layer is solved.
本发明公开了一种双管振动冲击沉管碎石桩或混凝土灌注桩施工工艺及设备，涉及地基处理技术领域，施工工艺包括以下步骤：步骤1)引孔设备就位；步骤2)双管引孔至设计桩底标高：开启振动锤，振动锤带动内管和外管同步下沉，并自上而下依次振沉至块碎石填土层、软土层、持力层中成孔，直至达到设计桩底标高；步骤3)回填碎石或混凝土：振动锤拔出内管，在孔内留下外管护壁，接着孔内回填碎石或混凝土直至桩顶设计标高；步骤4)振拔外管，组合内外管。设备包括振动锤、夹桩器、内管和外管，内管套设于外管外形成内外双套管，内管与外管经夹桩器固定，夹桩器顶部设有振动锤。本发明解决了目前振冲碎石桩或混凝土灌注桩难以穿透块碎石层的问题。
Double-tube vibration impact immersed tube gravel pile or cast-in-place concrete pile construction process and equipment
双管振动冲击沉管碎石桩或混凝土灌注桩施工工艺及设备
LOU XIAOMING (author) / XU WANG (author) / CAO RONGXIA (author) / ZHU YAJUAN (author) / ZHANG JIALIN (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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