CN102261071A - Design, production and use of novel free fall hammer - Google Patents
Design, production and use of novel free fall hammer Download PDFInfo
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- CN102261071A CN102261071A CN2011101072925A CN201110107292A CN102261071A CN 102261071 A CN102261071 A CN 102261071A CN 2011101072925 A CN2011101072925 A CN 2011101072925A CN 201110107292 A CN201110107292 A CN 201110107292A CN 102261071 A CN102261071 A CN 102261071A
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to a free fall hammer for a foundation pile power test. The free fall hammer comprises a hammer and a sleeve, wherein the sleeve is placed on the test pile top, so that a sleeve partition board is pressed on the pile top, the lower part of the sleeve clings to the test pile, and the sleeve is vertical and stable; the hammer is placed into the sleeve and the upper part of the sleeve serves as a guide device when the hammer falls down, so that success and safety are maintained when the hammer falls down; the sleeve adopts a steel pipe; a steel partition board is welded in the middle of the sleeve; a hammer pad is arranged on the upper part of the sleeve partition board; a pile pad is arranged between the lower part of the sleeve partition board and the test pile top, so that impact of the hammer is reduced; and a main hook of a crane can hoist the hammer to the preset height and a secondary hook of the crane pulls a tripping device, so that the hammer falls freely and strikes the test pile.
Description
Technical field
The present invention relates to the freely falling body hammer that a kind of novel foundation pile dynamic test is used, belong to the foundation pile detection range of construction work, port works, highway and bridge engineering.
Background technology
When carrying out pile foundation dynamic test waterborne, need usually to transfer pile driving barge at present, pile driving barge is furnished with diesel hammer or hydraulic hammer usually.When pile driving barge not at the scene or its dispatch expense when higher, need to adopt the freely falling body hammer, as shown in Figure 1.The freely falling body hammer test pile that often adopts at present at first needs to set up test pile platform 14, and platform is placed on the auxiliary pile 13, the shelf 15 of freely falling body hammer is placed on the platform 14, adopt crane barge 9 to sling and hammer 6 into shape, by trip gear 10 hammer body is fallen, the hammer freely falling body descends and driven pile pushes up.
But this traditional testing arrangement need be set up special working platform and transfer pile driving barge, therefore wastes time and energy, and detects the also corresponding increase of cost.
Summary of the invention
The application's purpose is to provide a kind of novel freely falling body hammer, is applicable to the dynamic test of foundation pile, is specially adapted to the dynamic test of foundation pile waterborne.The advantage of novel freely falling body hammer of the present invention is to need not to set up working platform, can be directly pilot sleeve be placed on one's body the test pile, utilize pile body to keep the vertical and stable of pilot sleeve, thereby saved the test pile setting up expenses, and the process of test pile also becomes simple and convenient.
For achieving the above object, the present invention is realized by the following technical programs:
1, the freely falling body hammer used of a kind of foundation pile dynamic test comprises hammer and sleeve.It is characterized in that: sleeve is placed on the test pile top, and test pile is close in the bottom that makes the sleeve dividing plate push down test pile top, sleeve, to guarantee the vertical and stable of sleeve; The loop wheel machine main hook hangs predetermined altitude with hammer, and the auxiliary hook of loop wheel machine unclamps trip gear, thereby makes hammer free-falling and hit test pile.
2, the freely falling body hammer used of a kind of 1 described foundation pile dynamic test, hammer is placed on the sleeve the inside, the guiding device when falling as hammer with the top of sleeve, when guaranteeing that hammer falls smoothly and safety.
3, the freely falling body hammer used of a kind of 1 or 2 described foundation pile dynamic tests adopts steel pipe as sleeve, is welded with the steel dividing plate in the middle of the sleeve.
4, the freely falling body hammer used of a kind of 1 or 2 described foundation pile dynamic tests, the top of sleeve dividing plate is provided with pallet, and the bottom of sleeve dividing plate is provided with dolly between pushing up with test pile.
5, the freely falling body hammer used of a kind of 4 described foundation pile dynamic tests, described pallet is prepared from by wire rope and wooden a tree, used in making timber for boats.
6, the freely falling body hammer used of a kind of 4 described foundation pile dynamic tests, described dolly is prepared from by plank.
7, the freely falling body hammer used of a kind of 1 or 2 described foundation pile dynamic tests, described hammer is that cast steel or steel pipe add concrete core.
In addition, the present invention also provides a kind of and has used above-mentioned freely falling body hammer to carry out the method for foundation pile dynamic test, and this method comprises: a is placed into sleeve and hammer on the test pile top, and sleeve is closely contacted with pile body; B lifts by crane pile monkey with the main hook of loop wheel machine by electrical apparatus release; C spurs electrical apparatus release with auxiliary hook after hammer hangs predetermined altitude, make the hammer free-falling, and strike makes stake produce a displacement on the stake top.
Foundation pile dynamic test of the present invention with the characteristics of freely falling body hammer and using method thereof is: the weight of sleeve and hammer is born by test pile, relies on test pile to guarantee the vertical of sleeve and hammer, need not to set up working platform; Be provided with the impact force that pallet that wire rope or wooden a tree, used in making timber for boats make reduces hammer on the top of dividing plate; Hammer is placed on sleeve the inside, and the guiding device when using the top of sleeve to fall as hammer, guaranteed when hammer falls smoothly and safety.
Description of drawings
Accompanying drawing 1, the freely falling body that extensively adopts now hammer moves the test pile schematic diagram.
Accompanying drawing 2, freely falling body hammer of the present invention moves the test pile schematic diagram.
Accompanying drawing 3, the structure and the operating principle of freely falling body hammer of the present invention, a hammer is sling, and the b hammer falls behind down.
Accompanying drawing 4, adopt freely falling body of the present invention hammer to Kuwait's crust than prolonging test signal and the analog result figure that harbour engineering interim bridge in island moves survey.
Reference numeral is: 1 sleeve; 2 test piles; Dividing plate in 3 sleeves; 4 pallets; 5 dollys; 6 hammers; 7 main hooks; 8 auxiliary hooks; 9 loop wheel machines; 10 trip gears; 11 dynamic test for pile foundation splitters; 12 sensors; 13 auxiliary piles; 14 working platformes; 15 hammer carriers.
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing 1-3.
The novel freely falling body hammer that the foundation pile dynamic test is used comprises sleeve 1 and hammer 6; Sleeve 1 is placed on the top of test pile 2, and the test pile body is close in the bottom that makes sleeve dividing plate 3 push down test pile top, sleeve 1, to guarantee the vertical and stable of sleeve 1; The top of sleeve dividing plate 3 is provided with pallet 4, is provided with dolly 5 between the bottom of sleeve dividing plate 3 and test pile 2 tops.Hammer 6 is placed on sleeve 1 the inside, the guiding device when falling as hammer 6 with the top of sleeve 1, when keeping falling smoothly and safety.Sleeve 1 can be steel pipe, and the centre is welded with the steel dividing plate.Pallet 4 is prepared from by wire rope and wooden a tree, used in making timber for boats.Dolly 5 is prepared from by plank.Hammer 6 adds concrete core for cast steel or steel pipe.
The using method of freely falling body hammer of the present invention is that a is placed into sleeve 1 and hammer 6 on the top of test pile 2, and sleeve 1 is closely contacted with pile body; B plays sash weight 6 with the main hook 7 of loop wheel machine 9 by electrical apparatus release; C with auxiliary hook 8 pulling electrical apparatus releases 10, makes hammer 6 free-fallings, thereby makes hammer 6 free-fallings hit test pile 2 and produce displacement after hammer 6 hangs predetermined altitude.
Freely falling body of the present invention hammer once was applied to the dynamic test of Kuwait's crust than the steel pipe pile that prolongs the interim bridge of island harbour engineering, tested respond wellly, and the quality that accompanying drawing 4 demonstrates test signal quality and match is all very high.
Claims (8)
1. the freely falling body hammer that the foundation pile dynamic test is used comprises hammer and sleeve.It is characterized in that: sleeve is placed on the test pile top, makes the sleeve dividing plate be pressed in that go up on the test pile top, the test pile body is close in the bottom of sleeve, to guarantee the vertical and stable of sleeve; The loop wheel machine main hook hangs predetermined altitude with hammer, and the auxiliary hook of loop wheel machine unclamps trip gear, makes to hammer free-falling into shape and hit test pile.
2. the freely falling body hammer used of a foundation pile dynamic test according to claim 1, hammer is placed on the sleeve the inside, the guiding device when falling as hammer with the top of sleeve, when keeping falling smoothly and safety.
3. the freely falling body hammer that foundation pile dynamic test according to claim 1 and 2 is used adopts steel pipe as sleeve, is welded with the steel dividing plate in the middle of the sleeve.
4. the freely falling body hammer used of a foundation pile dynamic test according to claim 1 and 2, the top of sleeve dividing plate is provided with pallet, and the bottom of sleeve dividing plate is provided with dolly between pushing up with test pile.
5. the freely falling body hammer used of a foundation pile dynamic test according to claim 4, described pallet is prepared from by wire rope and wooden a tree, used in making timber for boats etc.
6. the freely falling body hammer used of a foundation pile dynamic test according to claim 4, described dolly is prepared from by plank etc.
7. the freely falling body hammer used of a foundation pile dynamic test according to claim 1 and 2, described hammer is that cast steel or steel pipe add concrete core.
8. method of using arbitrary described freely falling body hammer among the claim 1-7 to carry out the foundation pile dynamic test, this method comprises: a is placed on sleeve on the test pile top, and sleeve is closely contacted with the test pile body, hammers into shape to be placed in the sleeve; B lifts by crane pile monkey with the main hook of loop wheel machine by electrical apparatus release; C spurs electrical apparatus release with auxiliary hook after hammer hangs predetermined altitude, make the hammer free-falling, and strike makes test pile produce displacement on the stake top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110107292 CN102261071B (en) | 2011-04-26 | 2011-04-26 | Design, production and use of novel free fall hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110107292 CN102261071B (en) | 2011-04-26 | 2011-04-26 | Design, production and use of novel free fall hammer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102261071A true CN102261071A (en) | 2011-11-30 |
| CN102261071B CN102261071B (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110107292 Expired - Fee Related CN102261071B (en) | 2011-04-26 | 2011-04-26 | Design, production and use of novel free fall hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102261071B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758128A (en) * | 2014-01-15 | 2014-04-30 | 中铁港航局集团有限公司 | Raked pile rock-socketed punching construction method |
| CN108252304A (en) * | 2016-12-29 | 2018-07-06 | 上海雄程海洋工程股份有限公司 | Electric impacting pile hammer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2051240U (en) * | 1989-07-11 | 1990-01-17 | 广州市越秀区利源基础工程科研所 | Low-loudness drop hammer for pile driver |
| CN2168012Y (en) * | 1993-08-30 | 1994-06-08 | 桂林市建工机械厂 | Cast iron bump hammer |
| CN2215516Y (en) * | 1994-05-21 | 1995-12-20 | 吉林工业大学 | Free falling impact type hydraulic hammer |
| EP0725864B1 (en) * | 1993-09-21 | 1998-04-08 | Frank's International Limited | Improved pile driver |
| CN201424648Y (en) * | 2009-04-20 | 2010-03-17 | 武汉京冶地基基础工程有限责任公司 | Double-hook tripper |
| CN101725161A (en) * | 2009-12-21 | 2010-06-09 | 中国第一冶金建设有限责任公司 | Detection force rod of low strain of foundation pile |
| CN101736742A (en) * | 2010-02-10 | 2010-06-16 | 湖南新天和工程设备有限公司 | Hydraulic power pile driver with hammer penetration pile test function |
-
2011
- 2011-04-26 CN CN 201110107292 patent/CN102261071B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2051240U (en) * | 1989-07-11 | 1990-01-17 | 广州市越秀区利源基础工程科研所 | Low-loudness drop hammer for pile driver |
| CN2168012Y (en) * | 1993-08-30 | 1994-06-08 | 桂林市建工机械厂 | Cast iron bump hammer |
| EP0725864B1 (en) * | 1993-09-21 | 1998-04-08 | Frank's International Limited | Improved pile driver |
| CN2215516Y (en) * | 1994-05-21 | 1995-12-20 | 吉林工业大学 | Free falling impact type hydraulic hammer |
| CN201424648Y (en) * | 2009-04-20 | 2010-03-17 | 武汉京冶地基基础工程有限责任公司 | Double-hook tripper |
| CN101725161A (en) * | 2009-12-21 | 2010-06-09 | 中国第一冶金建设有限责任公司 | Detection force rod of low strain of foundation pile |
| CN101736742A (en) * | 2010-02-10 | 2010-06-16 | 湖南新天和工程设备有限公司 | Hydraulic power pile driver with hammer penetration pile test function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758128A (en) * | 2014-01-15 | 2014-04-30 | 中铁港航局集团有限公司 | Raked pile rock-socketed punching construction method |
| CN108252304A (en) * | 2016-12-29 | 2018-07-06 | 上海雄程海洋工程股份有限公司 | Electric impacting pile hammer |
| CN108252304B (en) * | 2016-12-29 | 2023-09-15 | 上海雄程海洋工程股份有限公司 | Electric impact pile driving hammer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102261071B (en) | 2013-07-24 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 510230 Guangzhou Qianjin Road, Guangdong, No. 157 Applicant after: Zhongjiao Sihang Engineering Inst. Co., Ltd. Applicant after: CCCC Fourth Harbor Engineering Co., Ltd. Applicant after: China Harbour Engineering Co., Ltd. Applicant after: CCCC Fourth Harbor Geotechnical Engineering Co., Ltd. Address before: 510230 Guangzhou Qianjin Road, Guangdong, No. 157 Applicant before: Zhongjiao Sihang Engineering Inst. Co., Ltd. Applicant before: CCCC Fourth Harbor Engineering Co., Ltd. Applicant before: China Harbour Engineering Co., Ltd. Applicant before: Guangzhou Sihang Geotechnical Engineering Co., Ltd. |
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Granted publication date: 20130724 Termination date: 20210426 |
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| CF01 | Termination of patent right due to non-payment of annual fee |