JPS6458794A - Method of excavation construction and excavator - Google Patents
Method of excavation construction and excavatorInfo
- Publication number
- JPS6458794A JPS6458794A JP21237187A JP21237187A JPS6458794A JP S6458794 A JPS6458794 A JP S6458794A JP 21237187 A JP21237187 A JP 21237187A JP 21237187 A JP21237187 A JP 21237187A JP S6458794 A JPS6458794 A JP S6458794A
- Authority
- JP
- Japan
- Prior art keywords
- casing
- hammer
- excavation
- pawls
- outer periphery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Earth Drilling (AREA)
Abstract
PURPOSE: To prevent the heaving of underground water by protruding the striking pawls of a hammer from the front end of a double-wall casing housing the hammer inside and, after excavation is completed by compacting excavated soil against the outer periphery, feeding the muck into the casing by reversely rotating the casing. CONSTITUTION: The front end section of a casing 1 is constructed in a double- wall structure and a hammer 12 is housed in the casing 1 while striking pawls 12a attached to the front end of the hammer 12 are protruded from the front end face of the casing 1. Excavation is performed by using an excavating device having excavating blades 7 arranged at a fixed angle so that excavated soil 17 may be discharged to the outer periphery when the casing 1 is rotated in the normal direction until the excavating device reaches the foundation ground by compacting the excavated soil 17 against the outer periphery with the blades 7 by rotating the casing 1 in the normal direction. After reaching, the muck 17 produced by the pawls 12a are fed into the casing 1 by means of the hammer 12 by rotating the casing 1 in the reverse direction and also actuating the hammer 12. Therefore, large-depth excavation can be performed even in a strata containing a large quantity of underground water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21237187A JPS6458794A (en) | 1987-08-25 | 1987-08-25 | Method of excavation construction and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21237187A JPS6458794A (en) | 1987-08-25 | 1987-08-25 | Method of excavation construction and excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6458794A true JPS6458794A (en) | 1989-03-06 |
| JPH0435597B2 JPH0435597B2 (en) | 1992-06-11 |
Family
ID=16621457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21237187A Granted JPS6458794A (en) | 1987-08-25 | 1987-08-25 | Method of excavation construction and excavator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6458794A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022549528A (en) * | 2021-02-22 | 2022-11-25 | 中▲鉄▼九局集▲団▼第四工程有限公司 | Ultra-long and small-diameter borehole pile construction method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49105708A (en) * | 1973-02-13 | 1974-10-07 | ||
| JPS49136801U (en) * | 1973-03-26 | 1974-11-25 | ||
| JPS6123384U (en) * | 1984-07-13 | 1986-02-12 | 三和機材株式会社 | Large diameter excavator for bedrock |
-
1987
- 1987-08-25 JP JP21237187A patent/JPS6458794A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49105708A (en) * | 1973-02-13 | 1974-10-07 | ||
| JPS49136801U (en) * | 1973-03-26 | 1974-11-25 | ||
| JPS6123384U (en) * | 1984-07-13 | 1986-02-12 | 三和機材株式会社 | Large diameter excavator for bedrock |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022549528A (en) * | 2021-02-22 | 2022-11-25 | 中▲鉄▼九局集▲団▼第四工程有限公司 | Ultra-long and small-diameter borehole pile construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0435597B2 (en) | 1992-06-11 |
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