CN113884294A - Underwater anchor block anchoring force detection device and detection method - Google Patents
Underwater anchor block anchoring force detection device and detection method Download PDFInfo
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- CN113884294A CN113884294A CN202111189044.XA CN202111189044A CN113884294A CN 113884294 A CN113884294 A CN 113884294A CN 202111189044 A CN202111189044 A CN 202111189044A CN 113884294 A CN113884294 A CN 113884294A
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- anchor block
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- detection device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0033—Force sensors associated with force applying means applying a pulling force
Abstract
The invention relates to the technical field of underwater anchor block trial pull detection, in particular to an underwater anchor block anchoring force detection device and a detection method, wherein the detection device comprises a force application mechanism and at least two traction mechanisms, the traction mechanisms are used for connecting an anchor block and the force application mechanism, the force application mechanism is used for applying tension to the anchor block, the force application mechanism is arranged on a barge, and the traction mechanisms are connected with a force measurement display mechanism; the detection method is characterized in that the anchor block is connected with the force application mechanism arranged on the barge through the traction mechanism, the force application mechanism applies pulling force to the anchor block, the force measurement display mechanism displays the pulling force, the device is simple in structure, the detection result is accurate by observing the state of the anchor block under the action of the pulling force equivalent to the designed anchoring force, the detection mode is simple, the anchoring force detection of the anchor block before use is realized, the anchor block is ensured to meet the use requirement, and the engineering safety and quality risk caused by the insufficient anchoring force of the anchor block are avoided.
Description
Technical Field
The invention relates to the technical field of underwater anchor block trial pull detection, in particular to an underwater anchor block anchoring force detection device and method.
Background
The anchor block is an important structure for assisting mooring engineering members and engineering berthing ships, in immersed tube tunnel engineering, the auxiliary movement and positioning of pipe joints are required to be carried out by depending on an underwater anchor block in the processes of depositing and installing, whether the anchoring force of the anchor block meets the use requirement or not and whether the pipe joints can be stressed without displacement in the construction process or not is directly determined, the depositing safety and the installing and positioning accuracy of the pipe joints are directly determined, the quality of the immersed tube tunnel engineering is concerned, and if the anchoring force of the anchor block does not meet the use requirement and the construction is directly carried out, the risks such as engineering safety, quality and the like can be caused.
However, after the anchor block is set in place, the anchor block is located underwater, and the anchoring force cannot be easily detected, so that the anchor block cannot be easily ensured to meet the use requirement before construction.
Therefore, a technical scheme is urgently needed at present to solve the technical problems that after the existing underwater anchor block is arranged in place, the anchoring force is not easy to detect, and risks such as engineering safety and quality are caused.
Disclosure of Invention
The invention aims to: aiming at the problems in the background technology, a device and a method for detecting the anchoring force of an underwater anchor block are provided.
In order to achieve the purpose, the invention adopts the technical scheme that:
the underwater anchor block anchoring force detection device comprises a force application mechanism and at least two traction mechanisms, wherein the traction mechanisms are used for connecting an anchor block and the force application mechanism, the force application mechanism is used for applying a pulling force to the anchor block, the force application mechanism is arranged on a barge, and the traction mechanisms are connected with a force measurement display mechanism.
The underwater anchor block anchoring force detection device is characterized in that the anchor block is connected with the force application mechanism arranged on the barge through the traction mechanism, the force application mechanism applies pulling force to the anchor block, the force measurement display mechanism displays the pulling force, and the device is simple in structure, so that the anchoring force detection before the use of the anchor block can be realized by observing the state of the anchor block under the action of the pulling force equivalent to the anchoring force required by design, the anchor block is ensured to meet the use requirement, and the engineering safety and quality risk caused by insufficient anchoring force of the anchor block are avoided.
As a preferred scheme of the present invention, the force application mechanism includes a winch, a pulley mechanism and a steel wire rope, the head end of the steel wire rope is connected to the winch, the tail end of the steel wire rope is fixed to the barge, the steel wire rope is threaded around the pulley mechanism, and all the traction mechanisms are respectively connected to the pulley mechanism. The winch can provide enough tension for the anchor block, the pulley mechanism can enlarge the tension of the force application mechanism on the anchor block through the winding path of the steel wire rope, and the tension value meeting the design requirement of the anchoring force is applied to the underwater anchor block in the detection process.
As a preferred scheme of the present invention, the steel wire rope between the winch and the pulley mechanism is a first section, the steel wire rope between the pulley mechanism and the tail end is a tail section, and the first section and the tail section are arranged in a crossing manner. The cross arrangement of the first section and the tail section enables the tension of the steel wire rope to apply inward contraction force to the pulley mechanism, the tension applied to the anchor block through the traction mechanism is achieved, the tension applied to the anchor block can be correspondingly expanded, and the tension value applied to the anchor block can reach the magnitude of the anchoring force required by the design of the anchor block.
As a preferable scheme of the invention, the winch is connected with a motor, and the motor is arranged on the barge.
As a preferable aspect of the present invention, the pulley mechanism includes at least a first pulley and a second pulley that are disposed opposite to each other. The position state of the anchor block in a tensioned state can be judged by observing the relative displacement of the first tackle and the second tackle, and the stability of the anchor block in a state of bearing the anchoring force required by design is obtained.
As a preferable scheme of the present invention, the traction mechanism includes a first shackle, a traction member, and a second shackle that are connected in sequence, and the first shackle is used for being connected with the pulley mechanism.
The underwater anchor block anchoring force detection method adopts the detection device and comprises the following steps: step one, barge mooring and positioning: moving the barge to a position between two anchor blocks to be tested, and mooring and positioning the ship body; step two, installing a detection device: the anchor block is connected with a force application mechanism on the barge through a traction mechanism, and the traction mechanism is connected with a force measurement display mechanism; step three, tensioning the detection device: starting the force application mechanism, applying pulling force to the anchor block through the traction mechanism, and measuring the relative distance between the two traction mechanisms as an initial value when the force measurement display mechanism has stable reading and the traction mechanisms are in a tensioning state; step four, trial drawing of the anchor block: continuing to start the force application mechanism until the reading of the force measurement display mechanism is consistent with the anchoring force required by the design of the anchor block, stopping the force application mechanism, keeping the tension state of the traction mechanism for at least 30min, and measuring the relative distance between the two traction mechanisms as a contrast value; step five, judging results: and comparing the initial value with the comparison value, judging whether the difference value of the initial value and the comparison value is within an allowable range, and if so, ensuring that the anchoring force of the anchor block meets the requirement.
The underwater anchor block mooring force detection method provided by the invention has the advantages that the force application mechanism arranged on the barge applies a tensile force equivalent to the designed required mooring force to the anchor block, the displacement condition of the anchor block under the action of the tensile force is obtained by detecting the displacement condition of the traction mechanism connected with the tension of the anchor block in the tensile force state, the stability of the anchor block in the tensile force state is obtained, the detection result is accurate, the detection mode is simple, the detection of the mooring force of the anchor block before use can be easily realized, the anchor block is ensured to meet the use requirement, and the actual mooring force of the anchor block can be accurately obtained by observing the numerical value displayed by the force measurement display mechanism.
As a preferable scheme of the present invention, the force application mechanism includes a winch, a sheave mechanism and a wire rope, the sheave mechanism includes a first sheave and a second sheave that are disposed opposite to each other, and the initial value and the comparison value are obtained by measuring a center distance between the first sheave and the second sheave. The first pulley and the second pulley of the pulley mechanism are positioned between the two traction mechanisms, and the center distance between the first pulley and the second pulley is easier to measure, so that the displacement condition of the two anchor blocks in the state of the anchoring force required by design can be more easily obtained.
As a preferable aspect of the present invention, in the step five, if the difference between the initial value and the contrast value is not within the allowable range, the steps four to five are repeated.
And as a preferable scheme of the invention, continuously repeating the steps from four to five for at least three times, wherein the difference value between the initial value and the comparison value is not within an allowable range, and resetting the hoisting anchor block.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the underwater anchor block anchoring force detection device is characterized in that the anchor block and a force application mechanism arranged on a barge are connected through a traction mechanism, the force application mechanism applies pulling force to the anchor block, and the force measurement display mechanism displays the pulling force;
2. the underwater anchor block mooring force detection method provided by the invention has the advantages that the force application mechanism arranged on the barge applies a tensile force equivalent to the designed required mooring force to the anchor block, the displacement condition of the anchor block under the action of the tensile force is obtained by detecting the displacement condition of the traction mechanism connected with the tension of the anchor block in the tensile force state, the stability of the anchor block in the tensile force state is obtained, the detection result is accurate, the detection mode is simple, the detection of the mooring force of the anchor block before use can be easily realized, the anchor block is ensured to meet the use requirement, and the actual mooring force of the anchor block can be accurately obtained by observing the numerical value displayed by the force measurement display mechanism.
Drawings
Fig. 1 is a schematic structural diagram of an underwater anchor block anchoring force detection device.
Icon: 1-force application mechanism, 11-winch, 12-pulley mechanism, 121-first pulley, 122-second pulley, 13-steel wire rope, 14-eye plate, 2-traction mechanism, 21-first shackle, 22-traction piece, 23-second shackle, 3-barge, 4-force measurement display mechanism, 5-motor and 6-anchor block.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1, the underwater anchor block mooring force detection device comprises a force application mechanism 1 and two traction mechanisms 2, wherein the force application mechanism 1 is arranged on a barge 3, the force application mechanism 1 comprises a winch 11, a pulley mechanism 12 and a steel wire rope 13, the head end of the steel wire rope 13 is connected with the winch 11, the tail end of the steel wire rope 13 is fixed on the barge 3, the steel wire rope 13 is wound on the pulley mechanism 12 in a penetrating manner, one end of each of the two traction mechanisms 2 is connected with a corresponding anchor block 6, the other end of each of the two traction mechanisms 2 is connected with the pulley mechanism 12, and the traction mechanisms 2 are connected with a force measurement display mechanism 4.
The underwater anchor block anchoring force detection device is used for simultaneously detecting the anchoring force required by the design of two anchor blocks 6, the steel wire rope 13 is winched through the winch 11 arranged on the barge 3, inward contraction force is applied to the pulley mechanism 12, the pulley mechanism 12 applies pulling force to the underwater anchor block 6 through the traction mechanism 2, the pulling force borne by the anchor block 6 can be easily read through the force measurement display mechanism 4, the pulling force value is equivalent to the anchoring force required by the design of the anchor block 6, the anchoring force detection of the anchor block 6 before use is realized, the anchor block 6 used in the engineering is ensured to meet the use requirement, and the engineering safety and quality risks caused by insufficient anchoring force of the anchor block 6 are avoided.
Specifically, the winch 11 is an electric winch, and the winch 11 is connected with a generator which is arranged on the barge 3.
Preferably, the pulley mechanism 12 includes a pair of a first pulley 121 and a second pulley 122, the wire rope 13 is threaded around the first block 121 and the second block 122, the first carriage 121 and the second carriage 122 are each connected to the traction mechanism 2, the wire rope 13 between the winch 11 and the second tackle 122 is a first section, the wire rope 13 between the first tackle 121 and the tail end is a tail section, the first section and the tail section are arranged in a crossed manner, so that the steel wire rope 13 is matched with the first pulley 121 and the second pulley 122 to be arranged, the pulling force of the winch 11 on the steel wire rope 13 is expanded, the winch 11 can provide smaller pulling force to apply the pulling force which is equivalent to the anchoring force required by design to the anchor block 6, and the displacement state of the anchor block 6 under the design requirement anchoring force can be obtained easily by judging the relative displacement state of the first tackle 121 and the second tackle 122.
Specifically, the first tackle 121 and the second tackle 122 are both five-wheel tackle sets.
Specifically, one end of the steel wire rope 13 is wound on the winch 11, and the other end of the steel wire rope 13 is fixed on the barge 3 through the eye plate 14, so that the steel wire rope 13 between the winch 11 and the second tackle 122 is a first section, and the steel wire rope 13 between the first tackle 121 and the eye plate 14 is a tail section.
Preferably, each of the traction mechanisms 2 comprises a first shackle 21, a traction piece 22 and a second shackle 23 which are connected in sequence, and the first shackle 21 is used for being connected with the pulley mechanism 12.
Specifically, the first shackle 21 is a force measurement shackle with a force measurement display function, that is, the force measurement display mechanism 4 is a component of the traction mechanism 2.
Specifically, the force measurement display mechanism 4 comprises a force measurement pin sensor arranged on the force measurement shackle and a display instrument connected with the force measurement pin sensor.
In particular, the traction element 22 is a steel cord.
Specifically, the underwater anchor block anchoring force detection device of the present embodiment can adjust the number of pulleys or the arrangement positions of the pulley mechanisms 12 according to actual conditions, so as to achieve simultaneous detection of a plurality of anchor blocks 6, and expand the application range of the detection device, for example, more than two anchor blocks 6 can be connected to one pulley mechanism 12 through the traction mechanism 2 respectively according to the arrangement state of the anchor blocks 6 or the actual use condition of the anchor blocks 6, so that one pulley mechanism 12 applies tension to a plurality of anchor blocks 6 simultaneously.
Example 2
An underwater anchor block anchoring force detection method comprises the following steps: step one, mooring and positioning a barge 3: moving the barge 3 to a position between two anchor blocks 6 to be tested, and mooring and positioning the hull; step two, installing a detection device: according to the underwater anchor block anchoring force detection device shown in the figure 1, the detection device is installed, namely, an anchor block 6 and a force application mechanism 2 on a barge 3 are connected through a traction mechanism 2, and the traction mechanism 2 is connected with a force measurement display mechanism 4; step three, tensioning the detection device: starting the force application mechanism 2, applying a pulling force to the anchor block 6 through the traction mechanism 2, and measuring the relative distance between the two traction mechanisms 2 as an initial value when the force measurement display mechanism 4 has a stable reading and the traction mechanisms 2 are in a tensioning state; step four, trial drawing of the anchor block 6: continuing to start the force application mechanism 2 until the reading of the force measurement display mechanism 4 is consistent with the anchoring force required by the design of the anchor block 6, stopping the force application mechanism 1, keeping the tension state of the traction mechanism 2 for at least 30min, and measuring the relative distance between the two traction mechanisms 2 as a contrast value; step five, judging results: and comparing the initial value with the comparison value, judging whether the difference value of the initial value and the comparison value is in an allowable range, if so, determining that the anchoring force of the anchor block 6 meets the requirement, and if not, repeating the fourth step to the fifth step.
The underwater anchor block anchoring force detection method is used for simultaneously detecting the anchoring force required by the design of two anchor blocks 6, and is accurate in detection result and simple in detection mode.
Specifically, in the second step, the force application mechanism 1 includes a winch 11, a pulley mechanism 12 and a steel wire rope 13, the pulley mechanism 12 includes a first pulley 121 and a second pulley 122 which are oppositely arranged, and the traction mechanism 2 includes a force measurement shackle, a steel wire rope and a second shackle 23 which are sequentially connected.
Specifically, the method for detecting the anchoring force of the underwater anchor block is used for detecting the anchoring force of two 150 t-level anchor blocks 6 which are arranged oppositely, a traction mechanism 2 is formed by a 850KN force-measuring shackle, a steel rope and a 850KN common shackle, a force application mechanism 1 is formed by a 100KN electric winch 11, two 1000KN five-wheel pulleys and a 100KN eye plate 14, and the structure of the underwater anchor block anchoring force detection device shown in fig. 1 is adopted for mounting the underwater anchor block anchoring force detection device on a barge 3.
Specifically, in step three, the relative distance between the two traction mechanisms 2 is obtained by measuring the center distance between the first tackle 121 and the second tackle 122.
In particular, in step three, the force measuring display means 4 preferably has a stable reading of 100KN, which is set according to the actual use of the anchor block 6 in the construction or according to the tension of the steel cable constituting the traction means 2.
Specifically, in step four, the design requirement of anchor block 6 is set according to the service condition of anchor block 6 in the actual engineering.
Specifically, in the fifth step, the difference between the initial value and the comparison value is set according to the use requirement of the anchor block 6 in the actual engineering, and is preferably 50mm to 60 mm.
Preferably, in the fifth step, if the fourth to fifth steps are continuously repeated at least three times, the difference value between the initial value and the comparison value is not within the allowable range, and the hoisting anchor block 6 is reset.
Specifically, the anchor block 6 pit is excavated again by lifting the anchor block 6, gravel is installed in the anchor block pit and backfilled, the anchor block 6 is reset, and anchoring force detection is performed again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The underwater anchor block anchoring force detection device is characterized by comprising a force application mechanism (1) and at least two traction mechanisms (2), wherein the traction mechanisms (2) are used for connecting an anchor block (6) with the force application mechanism (1), the force application mechanism (1) is used for applying pulling force to the anchor block (6), the force application mechanism (1) is arranged on a barge (3), and the traction mechanisms (2) are connected with a force measurement display mechanism (4).
2. An underwater anchor block mooring force detecting device as claimed in claim 1, wherein said force applying mechanism (1) comprises a winch (11), a pulley mechanism (12) and a wire rope (13), the head end of said wire rope (13) is connected to said winch (11), the tail end of said wire rope (13) is fixed to said barge (3), said wire rope (13) is threaded around said pulley mechanism (12), and all said pulling mechanisms (2) are respectively connected to said pulley mechanism (12).
3. An underwater anchor block mooring force detection device as claimed in claim 2, wherein said wire rope (13) between said winch (11) and said pulley mechanism (12) is a leading segment, said wire rope (13) between said pulley mechanism (12) and said trailing end is a trailing segment, and said leading segment and said trailing segment are arranged in a crossing manner.
4. An underwater anchor block mooring force detection device as claimed in claim 1, wherein said winch (11) is connected to a motor (5), said motor (5) being disposed on said barge (3).
5. An underwater anchor block mooring force detection device as claimed in claim 2, wherein said pulley mechanism (12) comprises at least a first pulley (121) and a second pulley (122) disposed in opposition.
6. An underwater anchor block mooring force detection device as claimed in claim 2, wherein said pulling mechanism (2) comprises a first shackle (21), a pulling member (22) and a second shackle (23) connected in series, said first shackle (21) being adapted to be connected to said pulley mechanism (12).
7. A method for detecting the mooring force of an underwater anchor block, using a detection device according to claims 1-6, and comprising the steps of:
step one, mooring and positioning a barge (3): moving the barge (3) to a position between two anchor blocks (6) to be tested, and mooring and positioning the ship body;
step two, installing a detection device: the anchor block (6) is connected with the force application mechanism (1) on the barge (3) through the traction mechanism (2), and the traction mechanism (2) is connected with a force measurement display mechanism (4);
step three, tensioning the detection device: starting the force application mechanism (1), applying a pulling force to the anchor block (6) through the traction mechanism (2), and measuring the relative distance between the two traction mechanisms (2) as an initial value when the force measurement display mechanism (4) has a stable reading and the traction mechanism (2) is in a tensioning state;
step four, trial drawing of the anchor block: continuing to start the force application mechanism (1) until the reading of the force measurement display mechanism (4) is consistent with the anchoring force required by the design of the anchor block (6), stopping the force application mechanism (1), keeping the tension state of the traction mechanism (2) for at least 30min, and measuring the relative distance between the two traction mechanisms (2) as a contrast value;
step five, judging results: and comparing the initial value with the comparison value, judging whether the difference value of the initial value and the comparison value is within an allowable range, and if so, ensuring that the anchoring force of the anchor block (6) meets the requirement.
8. An underwater anchor block mooring force detection method as claimed in claim 7, wherein said forcing mechanism (1) comprises a winch (11), a sheave mechanism (12) and a wire rope (13), said sheave mechanism (12) comprises a first sheave (121) and a second sheave (122) disposed opposite to each other, and said initial value and said comparison value are obtained by measuring a center-to-center distance between said first sheave (121) and said second sheave (122).
9. An underwater anchor block mooring force detection method as claimed in claim 7, wherein in step five, if the difference between the initial value and the comparison value is not within an allowable range, steps four to five are repeated.
10. A method as claimed in claim 9, wherein steps four to five are repeated at least three times in succession, the difference between the initial value and the comparison value being outside the allowable range, and the hoisting anchor block (6) is reset.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111189044.XA CN113884294B (en) | 2021-10-12 | 2021-10-12 | Underwater anchor block anchoring force detection device and detection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111189044.XA CN113884294B (en) | 2021-10-12 | 2021-10-12 | Underwater anchor block anchoring force detection device and detection method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6044787A (en) * | 1995-08-22 | 2000-04-04 | A. P. Moller | Ship and a method adapted to generate tensile stresses in a pull line extended between the ships and an object to which a pull is to be applied |
| CN104261286A (en) * | 2014-10-22 | 2015-01-07 | 大连船舶重工集团有限公司 | Material transportation system between two floating platforms in deep sea |
| CN206095833U (en) * | 2016-10-25 | 2017-04-12 | 国网浙江省电力公司舟山供电公司 | Testing system is pounded to submarine cable anchor |
| CN206399574U (en) * | 2016-10-25 | 2017-08-11 | 国网浙江省电力公司舟山供电公司 | A kind of submarine cable anchor hangs pilot system |
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2021
- 2021-10-12 CN CN202111189044.XA patent/CN113884294B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6044787A (en) * | 1995-08-22 | 2000-04-04 | A. P. Moller | Ship and a method adapted to generate tensile stresses in a pull line extended between the ships and an object to which a pull is to be applied |
| CN104261286A (en) * | 2014-10-22 | 2015-01-07 | 大连船舶重工集团有限公司 | Material transportation system between two floating platforms in deep sea |
| CN206095833U (en) * | 2016-10-25 | 2017-04-12 | 国网浙江省电力公司舟山供电公司 | Testing system is pounded to submarine cable anchor |
| CN206399574U (en) * | 2016-10-25 | 2017-08-11 | 国网浙江省电力公司舟山供电公司 | A kind of submarine cable anchor hangs pilot system |
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