Construction method of clay core wall of earth rock cofferdam
The invention discloses a construction method of a clay core wall of an earth rock cofferdam, which comprises the following steps: arranging a plurality of pile positions on the clay core wall, drilling at each pile position to form a blind hole, recording the depth range of a drill bit when the bit...
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| creator | LI BIAO FAN HENGDONG CHEN KAI LI RUISHAN CHANG YONGMING CAO CHENGLIANG GAO CHANGHAI |
| description | The invention discloses a construction method of a clay core wall of an earth rock cofferdam, which comprises the following steps: arranging a plurality of pile positions on the clay core wall, drilling at each pile position to form a blind hole, recording the depth range of a drill bit when the bit pressure is abnormal in the drilling process, and marking the depth range as an abnormal section; a sleeve is inserted into the blind hole; the grouting pipe extends into the casing pipe and sinks to a preset position, grout is injected through the grouting pipe, the casing pipe is broken through spraying, the grouting pipe rotatably ascends in the grout spraying process, the difference value between the preset sprayed face elevation and the actual sprayed face elevation is calculated every first preset time in the abnormal section, if the difference value exceeds the preset difference value, grout spraying is paused, and if the difference value does not exceed the preset difference value, grout spraying is stoppe |
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a sleeve is inserted into the blind hole; the grouting pipe extends into the casing pipe and sinks to a preset position, grout is injected through the grouting pipe, the casing pipe is broken through spraying, the grouting pipe rotatably ascends in the grout spraying process, the difference value between the preset sprayed face elevation and the actual sprayed face elevation is calculated every first preset time in the abnormal section, if the difference value exceeds the preset difference value, grout spraying is paused, and if the difference value does not exceed the preset difference value, grout spraying is stoppe</description><language>chi ; eng</language><subject>ARTIFICIAL STONE ; CEMENTS ; CERAMICS ; CHEMISTRY ; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS ; CONCRETE ; EARTH DRILLING ; EARTH DRILLING, e.g. DEEP DRILLING ; EMBANKMENTS ; EXCAVATIONS ; FIXED CONSTRUCTIONS ; FOUNDATIONS ; HYDRAULIC ENGINEERING ; LIME, MAGNESIA ; METALLURGY ; MINING ; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ; 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a sleeve is inserted into the blind hole; the grouting pipe extends into the casing pipe and sinks to a preset position, grout is injected through the grouting pipe, the casing pipe is broken through spraying, the grouting pipe rotatably ascends in the grout spraying process, the difference value between the preset sprayed face elevation and the actual sprayed face elevation is calculated every first preset time in the abnormal section, if the difference value exceeds the preset difference value, grout spraying is paused, and if the difference value does not exceed the preset difference value, grout spraying is stoppe</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING LIME, MAGNESIA METALLURGY MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS REFRACTORIES SLAG SOIL SHIFTING TREATMENT OF NATURAL STONE UNDERGROUND OR UNDERWATER STRUCTURES |
| title | Construction method of clay core wall of earth rock cofferdam |
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