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Construction method for vibro-replacement gravel pile with silt below riprap layer
A construction method of a vibro-replacement gravel pile for lower-lying silt of a riprap layer comprises the steps that a lifting hopper, a collecting hopper, a double-lock pressure bin, a vibro-replacement guide rod and feeding pipe and a discharging port are included, a weighing facility is arranged on the lifting hopper to guarantee accurate feeding metering, and high-pressure water and gas are sprayed by a high-pressure water and gas pipe and a high-pressure water and gas nozzle arranged outside the vibro-replacement guide rod and feeding pipe during discharging; a cavity is formed in a sludge layer or a riprap body, so that smooth discharging is ensured; meanwhile, high-pressure steam is adopted for assisting pushing when stones in the riprap block the discharging opening; the construction equipment body is composed of a vibroflotation guide rod and feeding pipe, a shock absorber, a high-power vibroflotation device and a bottom opening water and gas nozzle. Vertically forming holes and forming a wall protecting system; and the vibroflotation equipment is lifted by a certain height, feeding is started, the vibroflotation equipment is lowered after filling is conducted, and the steps are repeated till a pile is formed. And front guide hole operation is not needed, equipment and personnel investment is reduced, and the engineering construction cost is reduced.
一种抛石层下卧淤泥振冲碎石桩施工方法，由提料斗、集料斗和双锁压力仓及振冲导杆兼供料管和出料口组成，提料斗上设置称重设施确保投料计量准确，振冲导杆兼供料管外设置的高压水、气管及高压水、气喷口在下料时喷射高压水、气，在淤泥层或抛石体内形成空腔，确保顺利出料；同时在抛石体内有石料卡住出料口时采用高压水气辅助推移；施工设备主体由振冲导杆兼供料管、减震器、大功率振冲器及底口水气喷口组成；垂直成孔，并形成护壁体系；上提振冲设备一定高度，开始投料，填料后降低振冲设备，如此往复直至成桩。无需前置引孔作业，减少设备、人员投入，降低工程建设成本。
Construction method for vibro-replacement gravel pile with silt below riprap layer
A construction method of a vibro-replacement gravel pile for lower-lying silt of a riprap layer comprises the steps that a lifting hopper, a collecting hopper, a double-lock pressure bin, a vibro-replacement guide rod and feeding pipe and a discharging port are included, a weighing facility is arranged on the lifting hopper to guarantee accurate feeding metering, and high-pressure water and gas are sprayed by a high-pressure water and gas pipe and a high-pressure water and gas nozzle arranged outside the vibro-replacement guide rod and feeding pipe during discharging; a cavity is formed in a sludge layer or a riprap body, so that smooth discharging is ensured; meanwhile, high-pressure steam is adopted for assisting pushing when stones in the riprap block the discharging opening; the construction equipment body is composed of a vibroflotation guide rod and feeding pipe, a shock absorber, a high-power vibroflotation device and a bottom opening water and gas nozzle. Vertically forming holes and forming a wall protecting system; and the vibroflotation equipment is lifted by a certain height, feeding is started, the vibroflotation equipment is lowered after filling is conducted, and the steps are repeated till a pile is formed. And front guide hole operation is not needed, equipment and personnel investment is reduced, and the engineering construction cost is reduced.
一种抛石层下卧淤泥振冲碎石桩施工方法，由提料斗、集料斗和双锁压力仓及振冲导杆兼供料管和出料口组成，提料斗上设置称重设施确保投料计量准确，振冲导杆兼供料管外设置的高压水、气管及高压水、气喷口在下料时喷射高压水、气，在淤泥层或抛石体内形成空腔，确保顺利出料；同时在抛石体内有石料卡住出料口时采用高压水气辅助推移；施工设备主体由振冲导杆兼供料管、减震器、大功率振冲器及底口水气喷口组成；垂直成孔，并形成护壁体系；上提振冲设备一定高度，开始投料，填料后降低振冲设备，如此往复直至成桩。无需前置引孔作业，减少设备、人员投入，降低工程建设成本。
Construction method for vibro-replacement gravel pile with silt below riprap layer
一种抛石层下卧淤泥振冲碎石桩施工方法
WANG AIPING (author) / AO HANBING (author) / HU QINZHOU (author) / GUO ZHIPENG (author) / DONG ZHIFANG (author) / FAN WENBO (author)
2023-10-27
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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