Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rotary jet grouting pile construction method for treating residual sludge on slope shoulder of blasting silt-squeezing cofferdam
The invention provides a jet grouting pile construction method for treating residual sludge on a slope shoulder of a blasting silt squeezing cofferdam, the construction method adopts a jet grouting pile drill rod device, the jet grouting pile drill rod device comprises an outer rod, a middle rod and an inner rod, the middle rod is mounted in the outer rod, and the inner rod is mounted in the middle rod; the bottom of the outer rod is connected with the middle rod through a first umbrella-shaped blade mechanism, and the bottom of the middle rod is connected with the inner rod through a second umbrella-shaped blade mechanism. During construction, the pile position is determined in a to-be-treated area of the blasting silt squeezing cofferdam, the sleeve is buried to a preset depth in a drilling mode, the jet grouting pile drill rod device sinks to the position of residual silt on a slope shoulder through the sleeve, then the inner rod is lifted upwards, the first umbrella-shaped blade mechanism and the second umbrella-shaped blade mechanism are opened, and the jet grouting pile drill rod device is constructed. Meanwhile, the outer rod and the middle rod are driven to rotate in the forward direction and the reverse direction correspondingly, grouting is conducted, and the high-pressure jet grouting pile is constructed; the whole construction process is simple, the pile forming effect is good, and the problem that the riprap cofferdam does not fall to the bottom can be effectively solved.
本发明提供一种处理爆破挤淤围堰坡肩残留淤泥的旋喷桩施工方法，该施工方法采用一种旋喷桩钻杆装置，该旋喷桩钻杆装置包括外杆、中间杆和内杆，中间杆安装在外杆内，内杆安装在中间杆内；外杆的底部和中间杆之间通过第一伞形叶片机构连接，中间杆的底部和内杆之间通过第二伞形叶片机构连接。施工时，在爆破挤淤围堰的待处理区域确定桩位，将套管通过钻孔方式埋设到预定深度，将旋喷桩钻杆装置通过套管下沉到达坡肩残留淤泥位置，然后通过向上提起内杆，使得第一伞形叶片机构和第二伞形叶片机构打开，同时驱动外杆和中间杆分别正、反向旋转并进行注浆，以构建高压旋喷桩；整个施工过程简单，成桩效果好，可以有效解决抛石围堰不落底的情况。
Rotary jet grouting pile construction method for treating residual sludge on slope shoulder of blasting silt-squeezing cofferdam
The invention provides a jet grouting pile construction method for treating residual sludge on a slope shoulder of a blasting silt squeezing cofferdam, the construction method adopts a jet grouting pile drill rod device, the jet grouting pile drill rod device comprises an outer rod, a middle rod and an inner rod, the middle rod is mounted in the outer rod, and the inner rod is mounted in the middle rod; the bottom of the outer rod is connected with the middle rod through a first umbrella-shaped blade mechanism, and the bottom of the middle rod is connected with the inner rod through a second umbrella-shaped blade mechanism. During construction, the pile position is determined in a to-be-treated area of the blasting silt squeezing cofferdam, the sleeve is buried to a preset depth in a drilling mode, the jet grouting pile drill rod device sinks to the position of residual silt on a slope shoulder through the sleeve, then the inner rod is lifted upwards, the first umbrella-shaped blade mechanism and the second umbrella-shaped blade mechanism are opened, and the jet grouting pile drill rod device is constructed. Meanwhile, the outer rod and the middle rod are driven to rotate in the forward direction and the reverse direction correspondingly, grouting is conducted, and the high-pressure jet grouting pile is constructed; the whole construction process is simple, the pile forming effect is good, and the problem that the riprap cofferdam does not fall to the bottom can be effectively solved.
本发明提供一种处理爆破挤淤围堰坡肩残留淤泥的旋喷桩施工方法，该施工方法采用一种旋喷桩钻杆装置，该旋喷桩钻杆装置包括外杆、中间杆和内杆，中间杆安装在外杆内，内杆安装在中间杆内；外杆的底部和中间杆之间通过第一伞形叶片机构连接，中间杆的底部和内杆之间通过第二伞形叶片机构连接。施工时，在爆破挤淤围堰的待处理区域确定桩位，将套管通过钻孔方式埋设到预定深度，将旋喷桩钻杆装置通过套管下沉到达坡肩残留淤泥位置，然后通过向上提起内杆，使得第一伞形叶片机构和第二伞形叶片机构打开，同时驱动外杆和中间杆分别正、反向旋转并进行注浆，以构建高压旋喷桩；整个施工过程简单，成桩效果好，可以有效解决抛石围堰不落底的情况。
Rotary jet grouting pile construction method for treating residual sludge on slope shoulder of blasting silt-squeezing cofferdam
一种处理爆破挤淤围堰坡肩残留淤泥的旋喷桩施工方法
ZHANG RUIQI (Autor:in)
13.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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