CN202216789U - Test stand of adsorption force of bottom of pile shoe of self-elevating platform - Google Patents
Test stand of adsorption force of bottom of pile shoe of self-elevating platform Download PDFInfo
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- CN202216789U CN202216789U CN 201120312957 CN201120312957U CN202216789U CN 202216789 U CN202216789 U CN 202216789U CN 201120312957 CN201120312957 CN 201120312957 CN 201120312957 U CN201120312957 U CN 201120312957U CN 202216789 U CN202216789 U CN 202216789U
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Abstract
The utility model discloses a test stand of adsorption force of the bottom of a pile shoe of a self-elevating platform and overcomes a shortcoming of one-sidedness of studying influence of an adsorption force of a bottom of a pile shoe on pile pulling resistance separately in the prior art. The test stand includes a box connected in a frame fixedly. A cylinder is disposed in the box. A pile shoe model is disposed in the cylinder and connected to the bottom of the cylinder. A first end of a rod is connected to the pile shoe module fixedly. A second end of the rod protrudes out of a top end of the cylinder and a part of the second end out of the cylinder is provided with a force sensor and a displacement sensor. An upper part of the cylinder is connected to the rod fixedly through a screw. At least two elevating rod are disposed in the frame and connected to the frame and connect with a box cover fixedly. The box cover is disposed above a fixed plate. A lower surface of the box cover connects with the second end of the rod fixedly. A hydraulic gage and a soil pressure cell are disposed in the box. The test stand of adsorption force of the bottom of the pile shoe of the self-elevating platform in the utility model overcomes a shortcoming of one-sidedness of studying influence of the adsorption force of the bottom of the pile shoe on pile pulling resistance separately in the prior art.
Description
Technical field
The utility model relates to the testing equipment of self-elevating drilling platform, relates in particular to a kind of self-elevating platform (SEP) shoe bottom absorption affinity test stand.
Background technology
Self-elevating drilling platform is one of visual plant of marine petroleum development.In the self-elevating drilling platform operation process, the platform pitching pile is dark excessively, and the shoe bottom soil body is fixed for a long time, causes platform pile pulling difficulty easily, causes high economic loss to platform, or even the platform accident.For avoiding this situation as far as possible, need the reasonably pile extraction resistance of Evaluation Platform, and then select suitable platform, this is for guaranteeing that platform safety is most important.
Research shows, is the situation of clay seam for supporting course, i.e. the situation that pile pulling difficulty takes place frequently, and the absorption affinity of shoe bottom possibly account for more than 1/2 of pile extraction resistance.It is most important that absorption affinity accurate calculated in the definite assessment of platform pile extraction resistance.But because it is more influence the factor of pile extraction resistance, comprise the gravity, soil body shearing resistance of the shoe top soil body etc., brought inconvenience for the research of absorption affinity so that in the related specifications still less than computing method about absorption affinity and platform pile extraction resistance.
For reducing pile extraction resistance as much as possible, generally adopt the mode of dashing stake in the engineering at present.Yet,, dash stake effect etc., owing to exist complicated and numerous influence factors, also long-term lacking correlative study for the mechanism of action of dashing stake.
Therefore; Design is also made special experimental provision; To self-elevating drilling platform shoe basis absorption affinity, pile extraction resistance and dash the problem that is run in the stake recruitment evaluation process and carry out correlative study, for the embarrassment of avoiding the pile pulling difficulty or even platform accident, avoid unnecessary economic loss, guarantee that platform safety is significant.
The utility model content
The utility model technical matters to be solved is need overcome prior art to study shoe bottom absorption affinity separately unilateral deficiency is lost in the influence of pile extraction resistance.
In order to solve the problems of the technologies described above; The utility model provides self-elevating platform (SEP) shoe bottom absorption affinity test stand; Comprise framework, casing (7), bar (11), shoe model (3), cylindrical shell (5), force transducer (8), displacement transducer (9), ventage piezometer (1), soil pressure cell (2), case lid (12), at least two elevating levers 24, fixed head 25 and screw rods 33, wherein:
Said casing (7) is fixedly connected on said framework inside, and said cylindrical shell (5) is positioned at the inside of said casing (7), and said shoe model (3) is positioned at the inside of said cylindrical shell (5) and is connected the bottom of said cylindrical shell (5);
First end of said bar (11) is fixedly connected on the said shoe model (3), and second end passes the top of said cylindrical shell (5), and the part that passes said cylindrical shell (5) is equipped with said force transducer (8) and displacement transducer (9);
The top of said cylindrical shell (5) is fixedly connected on the said bar (11) through said screw rod (33);
Said at least two elevating levers (24) are arranged in said framework and are connected on the said framework, are fixedly connected said case lid (12);
Said case lid (12) covers in the top of said fixed head (25), and lower surface is fixedly connected second end of said bar (11);
Said ventage piezometer (1) and soil pressure cell (2) are arranged in said casing (7).
Preferably, said framework comprises base (21) and connects at least two support posts (22) through back up pad (23);
Wherein, said at least two elevating levers (24) pass said back up pad (23).
Preferably, said shoe model (3) is through being threaded in the bottom of said cylindrical shell (5).
Preferably, said cylindrical shell (5) is the organic glass material.
Preferably, said bar (11) is inner with the connecting portion of said shoe model (3), is provided with said ventage piezometer (1).
Preferably, said case lid (12) upper surface is fixedly connected load maintainer (26).
Preferably, the stake of dashing hole (31) is arranged on the said shoe model (3), the said bottom that dashes stake hole (31) is provided with permeable stone (32).
Preferably, this test stand also comprises:
Penetrate said cylindrical shell (5) from the top of said cylindrical shell (5) and be connected the water pipe on the shoe model (3), said water pipe (4) matches with the said stake hole (31) that dashes.
In view of the experimental facilities that still not can be used for simulating self-elevating drilling platform pile punching and pile pulling process in the prior art; The utility model provides a kind of test stand that is applicable to simulation shoe bottom absorption affinity; The influence that absorption affinity is produced when being used for the analog platform pile pulling; Analyze to dash the elimination effect of stake, overcome prior art and studied shoe bottom absorption affinity separately unilateral deficiency is lost in the influence of pile extraction resistance absorption affinity.The effect of absorption affinity size when the embodiment of the utility model can study pile pulling is separately avoided the influence that top soil is heavy, the soil body destroys shearing force.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the partial enlarged drawing at king-pile last type embodiment illustrated in fig. 13 places.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, hereinafter will combine accompanying drawing that the embodiment of the utility model is elaborated.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
Fig. 1 is the structural representation of the utility model embodiment, and Fig. 2 is the partial enlarged drawing of shoe model embodiment illustrated in fig. 1.As shown in Figure 1; The test stand of the utility model embodiment mainly comprises base 21, casing 7, bar 11, shoe model 3, cylindrical shell 5, force transducer 8, displacement transducer 9, ventage piezometer 1, soil pressure cell 2, case lid 12, support post 22, back up pad 23, elevating lever 24, fixed head 25 and screw rod 33, wherein:
In other embodiments, the quantity of support post also can be two, also can be four or other quantity.Same, the quantity of elevating lever also can be two, four or other quantity.
As shown in Figure 1, be filled with sand 27 and red clay 28 in the casing 7 from top to bottom successively, in sand 27 and red clay 28, be placed with ventage piezometer 1 and soil pressure cell 2, also be placed with cylindrical shell 5 in the red clay 28 of top.Shoe model 3 is positioned at the inside of cylindrical shell 5, is connected the bottom of cylindrical shell 5 through fixed connection modes such as screw threads.First end of bar 11 is fixedly connected on the shoe model 3, and the top that second end passes cylindrical shell 5 is fixedly connected on the lower surface of case lid 12.The top of cylindrical shell 5 also is fixedly connected on the bar 11 through screw rod 33.Wherein, the connecting portion of bar 11 and shoe model 3, inside also is provided with ventage piezometer 1.In the present embodiment, cylindrical shell 5 is the organic glass material, when guaranteeing cylindrical shell 5 intensity, makes things convenient for the observation experiment process.
When test application; Can configure sand 27 and red clay 28 by designing requirement; Through modes such as hydro-extractor load mode or natural depositional modes; Make shoe model 3 be submerged in certain depth in the red clay 28, and at good soil pressure cell 2 of shoe model 3 arranged around and pore pressure gauge 1, pore pressure gauge 1 wherein is used for measuring the pore pressure in the pile pulling process pile foundation soil.The top of red clay 28, but splendid attire water 29 also.
On shoe model 3, keep certain pressure through load maintainer 26, leave standstill or, wait for that red clay 28 is fixed by predetermined way adjustment on-load pressure.In waiting for the fixed process of red clay 28, utilize ventage piezometer 1 to measure the pore water pressure value, utilize soil pressure cell 2 to measure the soil pressure values, and obtain inserting excess pore water pressure and the fixed dissipation rule information that shoe model 3 backs produce according to measurement result.
After the red clay 28 fixed completion, increase the upper pulling force of load maintainer 26 gradually, utilize ventage piezometer 1 acquisition and record shoe model 3 pore water pressure value on every side, write down the measured value of force transducer 8 simultaneously, draw the absorption affinity of pile pulling process king-pile last type bottom.
In the embodiment of the utility model, can also comprise water pipe.Water pipe penetrates case lid 12 from the outside of casing 7, and penetrates cylindrical shell 5 from the top of cylindrical shell 5 and be connected on the shoe model 3.As shown in Figure 2, have on the shoe model 3 match with water pipe dash a hole 31.The bottom that dashes stake hole 31 is provided with permeable stone 32, prevents that to 3 pressurizations of shoe model and red clay 28 red clay 28 is clamp-oned and dashed in the stake hole 31 when fixed, and the water of being convenient to again in the water pipe simultaneously can flow in the red clay 28.Can be through water pipe to the water filling of the bottom of shoe model 3.When test application; After red clay 28 fixed completion; When increasing the upper pulling force of hydraulic cylinder gradually; To the bottom of shoe model 3 water-filling, write down the pressure (gauge measurement) and the discharge capacity measured values such as (flowmeter surveys) of force transducer 8, pore pressure gauge 1, water-filling through water pipe simultaneously, obtain to dash the elimination effect of stake absorption affinity according to these measured values.
The embodiment of the utility model can analog platform each process of dashing stake, pile pulling, influences such as shoe top soil body gravity, the soil body shearing resistance when cylindrical shell on the shoe model can be eliminated pile pulling, the influence of absorption affinity when can be used for studying pile pulling.The embodiment of the utility model can also connect water pipe, can be used for studying towards the elimination effect of stake to absorption affinity.Simple in structure being prone to of the utility model made, and manufacturing cost is lower.
Though the embodiment that the utility model disclosed as above, the embodiment that described content just adopts for the ease of understanding the utility model is not in order to limit the utility model.Technician under any the utility model in the technical field; Under the prerequisite of spirit that does not break away from the utility model and disclosed and scope; Can do any modification and variation what implement in form and on the details; But the scope of patent protection of the utility model still must be as the criterion with the scope that appending claims was defined.
Claims (8)
1. self-elevating platform (SEP) shoe bottom absorption affinity test stand; It is characterized in that; Comprise framework, casing (7), bar (11), shoe model (3), cylindrical shell (5), force transducer (8), displacement transducer (9), ventage piezometer (1), soil pressure cell (2), case lid (12), at least two elevating levers (24), fixed head (25) and screw rod (33), wherein:
Said casing (7) is fixedly connected on said framework inside, and said cylindrical shell (5) is positioned at the inside of said casing (7), and said shoe model (3) is positioned at the inside of said cylindrical shell (5) and is connected the bottom of said cylindrical shell (5);
First end of said bar (11) is fixedly connected on the said shoe model (3), and second end passes the top of said cylindrical shell (5), and the part that passes said cylindrical shell (5) is equipped with said force transducer (8) and displacement transducer (9);
The top of said cylindrical shell (5) is fixedly connected on the said bar (11) through said screw rod (33);
Said at least two elevating levers (24) are arranged in said framework and are connected on the said framework, are fixedly connected said case lid (12);
Said case lid (12) covers in the top of said fixed head (25), and lower surface is fixedly connected second end of said bar (11);
Said ventage piezometer (1) and soil pressure cell (2) are arranged in said casing (7).
2. test stand according to claim 1 is characterized in that:
Said framework comprises base (21) and connects at least two support posts (22) through back up pad (23);
Wherein, said at least two elevating levers (24) pass said back up pad (23).
3. test stand according to claim 1 is characterized in that:
Said shoe model (3) is through being threaded in the bottom of said cylindrical shell (5).
4. test stand according to claim 1 is characterized in that:
Said cylindrical shell (5) is the organic glass material.
5. test stand according to claim 1 is characterized in that:
Said bar (11) is inner with the connecting portion of said shoe model (3), is provided with said ventage piezometer (1).
6. test stand according to claim 1 is characterized in that:
Said case lid (12) upper surface is fixedly connected load maintainer (26).
7. test stand according to claim 1 is characterized in that:
The stake of dashing hole (31) is arranged on the said shoe model (3), and the said bottom that dashes stake hole (31) is provided with permeable stone (32).
8. test stand according to claim 7 is characterized in that, this test stand also comprises:
Penetrate said cylindrical shell (5) from the top of said cylindrical shell (5) and be connected the water pipe on the shoe model (3), said water pipe (4) matches with the said stake hole (31) that dashes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120312957 CN202216789U (en) | 2011-08-25 | 2011-08-25 | Test stand of adsorption force of bottom of pile shoe of self-elevating platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120312957 CN202216789U (en) | 2011-08-25 | 2011-08-25 | Test stand of adsorption force of bottom of pile shoe of self-elevating platform |
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| Publication Number | Publication Date |
|---|---|
| CN202216789U true CN202216789U (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120312957 Expired - Lifetime CN202216789U (en) | 2011-08-25 | 2011-08-25 | Test stand of adsorption force of bottom of pile shoe of self-elevating platform |
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| CN (1) | CN202216789U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115713A (en) * | 2013-01-28 | 2013-05-22 | 浙江省钱塘江管理局勘测设计院 | Method for testing uplift-resistant bearing capacity of building blocks in building block structure |
| CN104807619A (en) * | 2014-12-05 | 2015-07-29 | 烟台中集来福士海洋工程有限公司 | Method for testing pile shoe structure of self-elevating platform |
| CN106289629A (en) * | 2016-08-08 | 2017-01-04 | 湖北省巴东县沿渡河电业发展有限公司 | A kind of based on wireless telecommunications for hydroelectric pressure gauge |
| CN109098217A (en) * | 2018-08-29 | 2018-12-28 | 天津大学 | A kind of plug stake of offshore self-elevating drilling platform influences development test device and method to neighbouring shoe |
| CN110202612A (en) * | 2019-04-04 | 2019-09-06 | 中国海洋大学 | Underwater propulsion or adsorbing mechanism parameter automatic measuring system and working method |
| CN112431182A (en) * | 2020-09-23 | 2021-03-02 | 中国石油天然气集团公司 | Bottom-sitting type platform bottom-leaving test device and test method |
| CN113026831A (en) * | 2021-03-26 | 2021-06-25 | 江苏科技大学 | Self-elevating platform pile shoe operation simulation experiment device and experiment control method thereof |
| CN114045826A (en) * | 2021-12-06 | 2022-02-15 | 中国石油大学(北京) | Drilling platform pile shoe and drilling platform |
-
2011
- 2011-08-25 CN CN 201120312957 patent/CN202216789U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115713A (en) * | 2013-01-28 | 2013-05-22 | 浙江省钱塘江管理局勘测设计院 | Method for testing uplift-resistant bearing capacity of building blocks in building block structure |
| CN103115713B (en) * | 2013-01-28 | 2014-11-12 | 浙江省钱塘江管理局勘测设计院 | Method for testing uplift-resistant bearing capacity of building blocks in building block structure |
| CN104807619A (en) * | 2014-12-05 | 2015-07-29 | 烟台中集来福士海洋工程有限公司 | Method for testing pile shoe structure of self-elevating platform |
| CN104807619B (en) * | 2014-12-05 | 2017-05-17 | 烟台中集来福士海洋工程有限公司 | Method for testing pile shoe structure of self-elevating platform |
| CN106289629A (en) * | 2016-08-08 | 2017-01-04 | 湖北省巴东县沿渡河电业发展有限公司 | A kind of based on wireless telecommunications for hydroelectric pressure gauge |
| CN106289629B (en) * | 2016-08-08 | 2019-08-16 | 湖北省巴东县沿渡河电业发展有限公司 | It is a kind of to be used for hydroelectric device for pressure measurement based on wireless telecommunications |
| CN109098217A (en) * | 2018-08-29 | 2018-12-28 | 天津大学 | A kind of plug stake of offshore self-elevating drilling platform influences development test device and method to neighbouring shoe |
| CN110202612A (en) * | 2019-04-04 | 2019-09-06 | 中国海洋大学 | Underwater propulsion or adsorbing mechanism parameter automatic measuring system and working method |
| CN112431182A (en) * | 2020-09-23 | 2021-03-02 | 中国石油天然气集团公司 | Bottom-sitting type platform bottom-leaving test device and test method |
| CN113026831A (en) * | 2021-03-26 | 2021-06-25 | 江苏科技大学 | Self-elevating platform pile shoe operation simulation experiment device and experiment control method thereof |
| CN114045826A (en) * | 2021-12-06 | 2022-02-15 | 中国石油大学(北京) | Drilling platform pile shoe and drilling platform |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20120509 |
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| CX01 | Expiry of patent term |