CN104452758B - A kind of drop-down rotation anchor device of suction penetrated and construction method thereof - Google Patents
A kind of drop-down rotation anchor device of suction penetrated and construction method thereof Download PDFInfo
- Publication number
- CN104452758B CN104452758B CN201410620884.0A CN201410620884A CN104452758B CN 104452758 B CN104452758 B CN 104452758B CN 201410620884 A CN201410620884 A CN 201410620884A CN 104452758 B CN104452758 B CN 104452758B
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- China
- Prior art keywords
- caisson
- anchor
- drop
- chain
- suction
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
Abstract
The invention discloses the drop-down rotation anchor device of a kind of suction penetrated and construction method thereof, buried depth is lost less, bearing capacity is strong.Its device comprises: anchor body (10), anchor chain (130), caisson (20), and anchor slab (15) plate left side of face upper vertical is provided with a cantilever lever (11), and the end of cantilever lever (11) has first hawsehole (111); Anchor chain (130) comprises the first anchor chain (131) matched with the first hawsehole (111) and the second anchor chain (132) matched with the second hawsehole (141) on anchor shin (14); Caisson (20) comprise can mutually combine, first caisson (21) being separated and second caisson (22); Have two vertical lower openings (23) on the right side of first caisson (21) bottom, the second caisson (24) bottom has a guide member (25) that can match with the first anchor chain (131); Anchor body (10) is arranged in the first caisson (21) by two lower openings (23) of the first caisson (21) bottom.
Description
Technical field
The invention belongs to the design of ocean engineering anchor foundation and construction field, relate to deep-sea ocean platform pool system anchor, especially relate to the drop-down rotation anchor device of a kind of suction penetrated and construction method thereof.
Technical background
Along with marine petroleum exploitation progressively strides forward to deep-sea, deep-sea oil platform adopts anchor device in a large number.Anchor used mainly comprises the dull and stereotyped anchor of towed, suction caisson anchor, the dull and stereotyped anchor of suction penetrated and dynamic anchor.And the dull and stereotyped anchor of suction penetrated is convenient with it, economic construction advantage is extensively promoted.
In actual use, the dull and stereotyped anchor of existing suction penetrated adopts erecting tools to fix as caisson carries out water-bed construction and installation.Its construction method is: be vertically inserted in suction caisson by the anchor slab of dull and stereotyped for suction penetrated anchor, dull and stereotyped anchor with suction caisson sinking in soil, then suction caisson is extracted out, dull and stereotyped anchor is stayed in soil, stretch the anchor chain be connected with dull and stereotyped anchor, dull and stereotyped anchor pull-up is rotated, until dull and stereotyped anchor is vertical with anchor chain, start bearing load, this anchor combines the advantage of the dull and stereotyped anchor of towed and suction caisson anchor: registration, construction cost is cheap, construct convenient, bearing capacity is large, but the defect existed is: in the process that dull and stereotyped anchor pull-up rotates, produce significant buried depth to lose, thus cause its bearing capacity to reduce.
Summary of the invention
In order to overcome the technological deficiency existing for above-mentioned prior art, technical problem to be solved by this invention is to provide the drop-down rotation anchor device of a kind of suction penetrated and construction method thereof that a kind of buried depth is lost less, bearing capacity is strong.
The present invention is the drop-down rotation anchor device of a kind of suction penetrated solve the technical problem, and comprises anchor body, anchor chain, caisson; Described anchor body comprises anchor slab and is installed on the anchor shin of anchor slab plate right side of face, and it is characterized in that, be vertically installed with a cantilever lever in the upper middle position of described anchor slab plate left side of face, the end of described cantilever lever is provided with first hawsehole; Described anchor chain comprises the first anchor chain matched with the first described hawsehole and the second anchor chain matched with the second hawsehole be arranged on described anchor shin; Described caisson comprise can mutually combine fixing, be separated first caisson and second caisson; Have two vertical lower openings on the right side of the first described caisson bottom, the second described caisson bottom has a guide member that can match with the first anchor chain; Described anchor body is arranged in the first caisson by two lower openings of the first described caisson bottom.
The centre of described anchor slab up extends and has a vertical anchor slab opening from bottom, and its A/F is at least not less than the diameter of the first anchor chain.
On the left of the first caisson outer right wall and second caisson of described mutual combination outer wall drum length direction on be evenly equipped with respectively several to fixing and the card article be separated and the draw-in groove of can cooperatively interacting.
The drum length of the first caisson of described mutual combination is greater than the drum length of the second caisson; A second caisson bottom arc plate is stretched out downwards at the second caisson cylinder side lower part away from the first caisson; The second described arc plate bottom, caisson bottom has a guide member that can match with the first anchor chain.
Described guide member is a pulley.
The another kind of mode of guide member is a chute.
The present invention is the construction method of installation of the drop-down rotation anchor of a kind of suction penetrated solve the technical problem: it is characterized in that, comprise the following steps:
(1) suction penetrated drop-down rotation anchor anchor body is arranged in the first caisson:
By the first caisson horizontal positioned, ensure that two lower openings on the right side of its underpart are positioned at the right; Make cantilever lever be positioned at left side, two lower openings of anchor slab along the first caisson bottom are embedded;
(2) anchor device is assembled:
Second caisson is lain in a horizontal plane in the right side installing anchor body first caisson, the card article on the first caisson is snapped in respectively in draw-in groove corresponding on the second caisson; Be fixed on first anchor chain one end on the first hawsehole on cantilever lever, the other end through after anchor slab opening, then is drawn through after the guide member of the second caisson; Be fixed on the second hawsehole of anchor shin by second anchor chain one end, the other end stretches into from the second caisson cylinder bottom and draws;
(3) by anchor device injection submarine soil layer:
First when the air vent of the first caisson and the second caisson is opened by conducting oneself with dignity its injection soil body, then close air vent, drawn water by suction pump, make anchor device in the effect of pressure reduction presses down and buries;
(4) the first caisson is regained:
By upwards promoting the anchor chain be connected with the first caisson, the first caisson being reclaimed, anchor body and the second caisson is stayed in soil simultaneously;
(5) the drop-down rotation of anchor body,
Keep the second caisson motionless, with the guide member pulley of the arc plate bottom bottom the second caisson for fulcrum, pull the first anchor chain, anchor body is moved downward and rotates position or specified angle until anchor slab is up to the standard;
(6) the second caisson is regained;
(7) pull the second anchor chain be connected with anchor shin, apply prestressing force according to designing requirement, drop-down for suction penetrated rotation anchor anchor body is in place.
Advantage of the present invention and beneficial effect comprise:
1. suction penetrated of the present invention drop-down rotation anchor is after a caisson placing is in place, with the arc plate bottom No. two caissons for fulcrum, the construction anchor chain be connected with arc plate end pulley is relied on to draw, anchor body is produced to bottom offset while rotating, and the buried depth traditional suction penetrated anchor pull-up can being avoided to rotate bring is lost and is lost due to buried depth the uncertain bearing capacity caused and reduces.
2. construction method is simple, easy.
Accompanying drawing explanation
Fig. 1 is left view and the front view of the suction penetrated drop-down rotation anchor anchor body of a kind of suction penetrated of the present invention drop-down rotation anchor device.
Fig. 2 is suction caisson composite unit structure schematic diagram.
Fig. 3 is suction caisson assembly front view.
Fig. 4 is suction caisson card article and notch schematic diagram.
Fig. 5 is a kind of suction penetrated of the present invention drop-down rotation anchor device work progress figure (the 3rd step is to the 7th step).
Fig. 6 is left view and the front view of the dull and stereotyped anchor of suction penetrated of prior art.
Fig. 7 is the suction penetrated dull and stereotyped anchor installation procedure chart of prior art.
Wherein, 10 suction penetrated drop-down rotation anchor anchor body, 11 cantilever levers, 111 first hawseholes, 12 anchor slab openings, 130 anchor chains, 131 first anchor chains, 132 second anchor chains, 14 anchor shins, 141 second hawseholes, 15 anchor slabs;
20 suction caissons, 21 first caissons, 22 second caissons, 23 first caisson lower openings, 24 second caisson bottom arc plates, 25 guide members, 26 card articles, 27 draw-in grooves.
Detailed description of the invention
The drop-down rotation anchor device of a kind of suction penetrated of the present invention, comprises anchor body 10, anchor chain 130, caisson 20; Described anchor body 10 comprises anchor slab 15 and is installed on the anchor shin 14 of anchor slab 15 plate right side of face, it is characterized in that, be vertically installed with a cantilever lever 11 in the upper middle position of described anchor slab 15 plate left side of face, the end of described cantilever lever 11 is provided with first hawsehole 111; Described anchor chain 130 comprises the first anchor chain 131 matched with the first described hawsehole 111 and the second anchor chain 132 matched with the second hawsehole 141 be arranged on described anchor shin 14; Described caisson 20 comprise can mutually combine fixing, be separated first caisson 21 and second caisson 22; Have two vertical lower openings 23 on the right side of the first described caisson 21 bottom, the second described caisson 24 bottom has a guide member 25 that can match with the first anchor chain 131; Described anchor body 10 is arranged in the first caisson 21 by two lower openings 23 of the first described caisson 21 bottom.
The centre of described anchor slab 15 up extends and has a vertical anchor slab opening 12 from bottom, and its A/F is at least not less than the diameter of the first anchor chain 131.
On the left of the first caisson 21 outer right wall and second caisson 22 of described mutual combination outer wall drum length direction on be evenly equipped with respectively several to fixing and the card article 26 be separated and the draw-in groove 27 of can cooperatively interacting.
The drum length of the first caisson 21 of described mutual combination is greater than the drum length of the second caisson 22; A second caisson bottom arc plate 24 is stretched out downwards at the second caisson 22 cylinder side lower part away from the first caisson 21; The second described arc plate 24 bottom, caisson bottom has a guide member 25 that can match with the first anchor chain 131.
Described guide member 25 is pulleys.
The another kind of form of described guide member 25 is chutes.
A kind of suction penetrated of the present invention drop-down rotation anchor device construction method, is characterized in that, comprise the following steps:
(1) suction penetrated drop-down rotation anchor anchor body 10 is arranged in the first caisson 21:
By the first caisson 21 horizontal positioned, ensure that two lower openings 23 on the right side of its underpart are positioned at the right; Make cantilever lever 11 be positioned at left side, two lower openings 23 of anchor slab 15 along the first caisson 21 bottom are embedded;
(2) anchor device is assembled:
Second caisson 22 is lain in a horizontal plane in the right side installing anchor body 10 first caisson 21, the card article 26 on the first caisson 21 is snapped in respectively in draw-in groove 27 corresponding on the second caisson 22; Be fixed on first anchor chain 131 one end on the first hawsehole 111 on cantilever lever 11, the other end through after anchor slab opening 12, then is drawn through after the guide member 25 of the second caisson 22; Be fixed on the second hawsehole 141 of anchor shin 14 by second anchor chain 132 one end, the other end stretches into from the second caisson 22 cylinder bottom and draws;
(3) by anchor device injection submarine soil layer:
First when the air vent of the first caisson 21 and the second caisson 22 is opened by conducting oneself with dignity its injection soil body, then close air vent, drawn water by suction pump, make anchor device in the effect of pressure reduction presses down and buries;
(4) the first caisson 21 is regained:
By upwards promoting the anchor chain be connected with the first caisson 21, the first caisson 21 being reclaimed, anchor body 10 and the second caisson 22 being stayed in soil simultaneously;
(5) the drop-down rotation of anchor body 10,
Keep the second caisson 22 motionless, with the guide member pulley 25 of arc plate 24 bottom bottom the second caisson 22 for fulcrum, pull the first anchor chain 131, anchor body 10 is moved downward and rotates position or specified angle until anchor slab 15 is up to the standard;
(6) the second caisson 22 is regained;
(7) pull the second anchor chain 132 be connected with anchor shin 14, apply prestressing force according to designing requirement, drop-down for suction penetrated rotation anchor anchor body 10 is in place.
Claims (4)
1. the drop-down rotation anchor device of suction penetrated, comprises anchor body (10), anchor chain (130), caisson (20); Described anchor body (10) comprises anchor slab (15) and is installed on the anchor shin (14) of anchor slab (15) plate right side of face, it is characterized in that, be vertically installed with a cantilever lever (11) in the upper middle position of described anchor slab (15) plate left side of face, the end of described cantilever lever (11) is provided with first hawsehole (111); Described anchor chain (130) comprises the first anchor chain (131) matched with described the first hawsehole (111) and the second anchor chain (132) matched with the second hawsehole (141) be arranged on described anchor shin (14); Described caisson (20) comprise can mutually combine fixing, be separated first caisson (21) and second caisson (22); Have two vertical lower openings (23) on the right side of described the first caisson (21) bottom, described the second caisson (24) bottom has a guide member (25) that can match with the first anchor chain (131); Described anchor body (10) is arranged in the first caisson (21) by two lower openings (23) of described the first caisson (21) bottom;
The centre of described anchor slab (15) up extends and has a vertical anchor slab opening (12) from bottom, and its A/F is at least not less than the diameter of the first anchor chain (131);
The drum length direction of the first caisson (21) outer right wall of described mutual combination and the second caisson (22) left side outer wall is evenly equipped with respectively several to fixing and the card article be separated (26) and the draw-in groove (27) of can cooperatively interacting;
The drum length of first caisson (21) of described mutual combination is greater than the drum length of the second caisson (22); Second caisson bottom arc plate (24) is stretched out downwards at the second caisson (22) the cylinder side lower part away from the first caisson (21); The second described arc plate (24) bottom, caisson bottom has a guide member (25) that can match with the first anchor chain (131).
2. the drop-down rotation anchor device of a kind of suction penetrated according to claim 1, is characterized in that, described guide member (25) is a pulley.
3. the drop-down rotation anchor device of a kind of suction penetrated according to claim 1, is characterized in that, described guide member (25) is a chute.
4. adopt the suction penetrated drop-down rotation anchor device described in any one of claims 1 to 3 to carry out a method for the installation of the drop-down rotation anchor of suction penetrated, it is characterized in that, comprise the following steps:
(1) suction penetrated drop-down rotation anchor anchor body (10) is arranged in the first caisson (21):
By the first caisson (21) horizontal positioned, ensure that two lower openings (23) on the right side of its underpart are positioned at the right; Make cantilever lever (11) be positioned at left side, two lower openings (23) of anchor slab (15) along the first caisson (21) bottom are embedded;
(2) anchor device is assembled:
Second caisson (22) is lain in a horizontal plane in the right side of the first caisson (21) installing anchor body (10), the card article (26) on the first caisson (21) is snapped in respectively in the upper corresponding draw-in groove (27) of the second caisson (22); First anchor chain (131) one end is fixed on the first hawsehole (111) on cantilever lever (11), the other end through after anchor slab opening (12), then is drawn afterwards through the guide member (25) of the second caisson (22); Be fixed on second anchor chain (132) one end on second hawsehole (141) of anchor shin (14), the other end stretches into from the second caisson (22) cylinder bottom and draws;
(3) by anchor device injection submarine soil layer:
First when the air vent of the first caisson (21) and the second caisson (22) is opened by conducting oneself with dignity its injection soil body, then close air vent, drawn water by suction pump, make anchor device in the effect of pressure reduction presses down and buries;
(4) the first caisson (21) is regained:
By upwards promoting the anchor chain be connected with the first caisson (21), the first caisson (21) being reclaimed, anchor body (10) and the second caisson (22) being stayed in soil simultaneously;
(5) anchor body (10) drop-down rotation,
Keep the second caisson (22) motionless, with the guide member pulley (25) of arc plate (24) bottom of the second caisson (22) bottom for fulcrum, pull the first anchor chain (131), anchor body (10) is moved downward and rotates position or specified angle until anchor slab (15) is up to the standard;
(6) the second caisson (22) is regained;
(7) pull the second anchor chain (132) be connected with anchor shin (14), apply prestressing force according to designing requirement, drop-down for suction penetrated rotation anchor anchor body (10) is in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410620884.0A CN104452758B (en) | 2014-11-06 | 2014-11-06 | A kind of drop-down rotation anchor device of suction penetrated and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410620884.0A CN104452758B (en) | 2014-11-06 | 2014-11-06 | A kind of drop-down rotation anchor device of suction penetrated and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104452758A CN104452758A (en) | 2015-03-25 |
| CN104452758B true CN104452758B (en) | 2016-03-02 |
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| CN201410620884.0A Expired - Fee Related CN104452758B (en) | 2014-11-06 | 2014-11-06 | A kind of drop-down rotation anchor device of suction penetrated and construction method thereof |
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| CN107640287A (en) * | 2017-09-29 | 2018-01-30 | 夏尔特拉（北京）太阳能科技有限公司 | Hammer entering-in-mud type plate anchor and its installation tool and enter mud construction method |
| CN108532626B (en) * | 2018-04-04 | 2020-07-17 | 合肥学院 | Suction injection type flat plate anchor with limiting pile |
| CN108528636B (en) * | 2018-04-04 | 2020-04-10 | 合肥学院 | Suction injection type flat plate anchor with arc fixing plate |
| CN108316340B (en) * | 2018-04-04 | 2020-04-28 | 合肥学院 | Suction penetration type flat plate anchor with rotary bottom plate |
| CN108674585B (en) * | 2018-06-29 | 2020-04-21 | 合肥学院 | Flat plate anchor with rotating plate arranged at bottom |
| CN108668974B (en) * | 2018-06-29 | 2020-01-24 | 合肥学院 | Deep water net cage towing anchor with extensible anchor plate |
| CN111254971A (en) * | 2019-11-11 | 2020-06-09 | 合肥学院 | Anchoring foundation based on double-barrel suction penetration and construction method thereof |
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