Recyclable drilling-free miniature recharge well and construction method
The invention provides a recoverable drilling-free micro recharge well and method. The micro recharge well comprises an outer steel pipe, an inner sleeve steel pipe, a connecting sleeve, a bottom sealing head, a filter screen and a barb steel bar. A barb steel bar is welded in the middle of the bott...
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| creator | WU YIHENG XU CHENGGONG WANG QIJIE HUANG YUEQIAO ZHENG HAIFENG SHI BIN LI ZHUOFENG MA YONGLONG FAN QIHANG |
| description | The invention provides a recoverable drilling-free micro recharge well and method. The micro recharge well comprises an outer steel pipe, an inner sleeve steel pipe, a connecting sleeve, a bottom sealing head, a filter screen and a barb steel bar. A barb steel bar is welded in the middle of the bottom sealing head, and a flexible filter screen is wound on the outer side of the inner sleeve steel pipe and fixed through a thin steel wire; and the bottom sealing head and the inner sleeve steel pipe are mutually screwed and sleeved into the outer steel pipe to form a first section of steel pipe at the bottom. And back pressure equipment is adopted for penetrating into the first section of steel pipe, then the second section of outer steel pipe is screwed on the first section of steel pipe, the connecting sleeve is installed on the top of the outer steel pipe, and the steps are repeated till penetrating into the designated depth. And the topmost outer steel pipe is pulled up by utilizing back pressure equipment, a |
| format | Patent |
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The micro recharge well comprises an outer steel pipe, an inner sleeve steel pipe, a connecting sleeve, a bottom sealing head, a filter screen and a barb steel bar. A barb steel bar is welded in the middle of the bottom sealing head, and a flexible filter screen is wound on the outer side of the inner sleeve steel pipe and fixed through a thin steel wire; and the bottom sealing head and the inner sleeve steel pipe are mutually screwed and sleeved into the outer steel pipe to form a first section of steel pipe at the bottom. And back pressure equipment is adopted for penetrating into the first section of steel pipe, then the second section of outer steel pipe is screwed on the first section of steel pipe, the connecting sleeve is installed on the top of the outer steel pipe, and the steps are repeated till penetrating into the designated depth. 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| subjects | EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES |
| title | Recyclable drilling-free miniature recharge well and construction method |
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