CN215639150U - Underwater stay cord positioning device and underwater stay cord positioning system - Google Patents
Underwater stay cord positioning device and underwater stay cord positioning system Download PDFInfo
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- CN215639150U CN215639150U CN202122086342.8U CN202122086342U CN215639150U CN 215639150 U CN215639150 U CN 215639150U CN 202122086342 U CN202122086342 U CN 202122086342U CN 215639150 U CN215639150 U CN 215639150U
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Abstract
The utility model relates to the technical field of immersed tube installation, in particular to an underwater stay cord positioning device and an underwater stay cord positioning system, wherein the underwater stay cord positioning device comprises at least three measuring ropes, one end of each measuring rope is used for being connected with an installed immersed tube, and the other end of each measuring rope is connected with a tensioning device used for tensioning the measuring rope; and the connecting device is used for being installed on the immersed tube to be installed, and the middle parts of the at least three measuring ropes are collected in the connecting device. The utility model provides an underwater stay cord positioner utilizes three piece at least measuring ropes to reachd the tie point that corresponds the measuring rope and be connected with the immersed tube of having installed to the distance between the connecting device, and then calculates the relative position of connecting device for the immersed tube of having installed (1), and this scheme is compared with traditional measurement calculation method, need not to install the measuring tower, need not supporting a lot of relevant measuring instruments, has improved the efficiency of construction, has reduced construction cost, and whole measurement positioning process is simple, and is convenient.
Description
Technical Field
The utility model relates to the technical field of immersed tube installation, in particular to an underwater stay rope positioning device and an underwater stay rope positioning system.
Background
The underwater installation and butt joint of the tunnel immersed tube (the butt joint of the installed immersed tube and the immersed tube to be installed) has high precision requirement, the conventional method is that a measuring tower is respectively installed on the upper surfaces of the front end and the rear end of the immersed tube, and the characteristic control points of the underwater tube joint are led out for water surface measurement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: the underwater stay rope positioning device and the underwater stay rope positioning system are provided for solving the problems that the underwater installation butt joint precision of a tunnel immersed tube is measured by using a measuring tower in the prior art, the installation is complex, the construction efficiency is low, and the construction cost is high.
In order to achieve the purpose, the utility model adopts the technical scheme that:
an underwater pull rope positioning device comprises a positioning device,
one end of each measuring rope is connected with the installed immersed tube (1), and the other end of each measuring rope is connected with a tensioning device for tensioning the measuring rope;
and the connecting device is used for being installed on the immersed tube (2) to be installed, and the middle parts of at least three measuring ropes are collected in the connecting device.
When the underwater stay rope positioning device is used, one end of a measuring rope is connected with an installed immersed tube, connecting points of the three measuring ropes and the installed immersed tube are arranged in a triangular mode, the other ends of the measuring ropes are gathered behind the connecting device and tensioned by the tensioning device, then at least three measuring ropes obtain distances from the connecting points, connected with the installed immersed tube, of the corresponding measuring ropes to the connecting device, and then the relative position of the connecting device relative to the installed immersed tube is calculated.
Preferably, the sensor is adapted to measure the distance of the portion of the measuring line between the end of the measuring line remote from the tensioning device and the connecting device.
And measuring the distance between the part of the measuring rope, which is positioned between the end part of the measuring rope far away from the tension device, and the connecting device through a sensor to obtain the distance between the connecting point, which is connected with the installed immersed tube, of the corresponding measuring rope and the connecting device, and further calculating the relative position of the connecting device relative to the installed immersed tube.
Preferably, the connecting device is a winch, a constant force spring or a spiral spring.
Preferably, the tensioning device comprises a fixed pulley block and a hoist, and one end of the measuring rope close to the tensioning device bypasses the fixed pulley block and then is connected with the hoist.
The pulling force to the measuring rope is generated by the way of hanging the heavy object and the fixed pulley block, and the aim of tensioning the corresponding measuring rope is further achieved.
Specifically, the fixed pulley group comprises at least one fixed pulley.
Preferably, the connecting device is arranged at the end part of the immersed tube to be installed, which is close to the immersed tube already installed, so as to prevent the structure of the immersed tube to be installed from interfering with the first measuring rope, the second measuring rope or the third measuring rope.
Preferably, the connecting device comprises a connecting sleeve, the middle parts of at least three measuring ropes are gathered at the pipe head of the connecting sleeve, and the same side ends of the first measuring rope, the second measuring rope and the third measuring rope penetrate through the connecting sleeve and are tensioned by a winch.
The application also discloses an underwater stay cord positioning system, which comprises an installed immersed tube, an immersed tube to be installed and the underwater stay cord positioning device, wherein three measuring ropes are defined as a first measuring rope, a second measuring rope and a third measuring rope,
the installed immersed tube is provided with a first connecting structure, a second connecting structure and a third connecting structure, and the first connecting structure, the second connecting structure and the third connecting structure are arranged in a triangular shape,
one end of the first measuring rope is connected with the first connecting structure, and the other end of the first measuring rope is tensioned through a tensioning device;
one end of the second measuring rope is connected with the second connecting structure, and the other end of the second measuring rope is tensioned through a tensioning device;
one end of the third measuring rope is connected with the third connecting structure, and the other end of the third measuring rope is tensioned through a tensioning device;
the first measuring rope, the second measuring rope and the third measuring rope are all gathered in the connecting device.
When the underwater pull rope positioning system is used, the positioning system is based on an installed immersed tube, an immersed tube to be installed,
Defining three measuring ropes as a first measuring rope, a second measuring rope and a third measuring rope, arranging a first connecting structure, a second connecting structure and a third connecting structure on the installed immersed tube, and enabling the first connecting structure, the second connecting structure and the third connecting structure to be arranged in a triangular shape,
connecting one end of the first measuring rope with the first connecting structure, and tensioning the other end of the first measuring rope through a tensioning device;
one end of the second measuring rope is connected with the second connecting structure, and the other end of the second measuring rope is tensioned through a tensioning device;
one end of the third measuring rope is connected with the third connecting structure, and the other end of the third measuring rope is tensioned through a tensioning device;
collecting the same side ends of the first measuring rope, the second measuring rope and the third measuring rope close to the immersed tube to be installed at the connecting device;
measuring a first distance based on a first measuring rope, wherein the first distance is the distance between the connecting device and the first connecting structure;
measuring a second distance based on a second measuring rope, wherein the second distance is the distance between the connecting device and the second connecting structure;
measuring a distance between the connection device and the third connection structure based on a third distance measured by a third measuring rope;
calculating the relative position of the connection device with respect to the installed sinking tube based on the first, second and third distances.
The utility model provides an underwater stay cord positioning system, in the whole measurement positioning process, utilize first measuring rope, second measuring rope and third measuring rope calculate respectively first distance, second distance and third distance, and then calculate connecting device for the relative position of heavy pipe has been installed, this scheme compares with traditional measurement calculation method, need not to install the measuring tower, need not supporting a lot of relevant measuring instruments, has improved the efficiency of construction, has reduced construction cost, and whole measurement positioning process is simple, and is convenient.
Preferably, the first connecting structure, the second connecting structure and the third connecting structure are distributed in an equilateral triangle.
Preferably, the connecting device is arranged at the end of the immersed tube to be installed close to the installed immersed tube.
Preferably, the underwater pull rope positioning system comprises at least two underwater pull rope positioning devices, wherein the immersed tube to be installed is provided with an inclination instrument for measuring the inclination of the immersed tube to be installed.
The application a stay cord positioning system under water, when using:
the underwater stay rope positioning device obtains the relative positions of at least two connecting devices relative to the installed immersed tube, and an inclination instrument for measuring the inclination of the immersed tube to be installed is installed on the immersed tube to be installed;
and calculating the position of the immersed tube to be installed relative to the installed immersed tube according to the relative position of the at least two connecting devices relative to the installed immersed tube and the inclination of the immersed tube to be installed.
The utility model provides an underwater stay cord positioning system, whole measurement positioning process matches through two sets at least measuring rope and waiting to install the immersed tube gradient, just can calculate and wait to install the immersed tube for the position of installing the immersed tube, and this scheme compares with traditional measurement calculation method, need not to install the measuring tower, need not supporting a lot of relevant measuring instruments, has improved the efficiency of construction, has reduced construction cost, and whole measurement positioning process is simple, and is convenient.
In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:
1. the underwater stay cord positioning device has the advantages that in the whole measuring and positioning process, the scheme is compared with the traditional measuring and calculating method, a measuring tower does not need to be installed, related measuring instruments do not need to be matched, the construction efficiency is improved, the construction cost is reduced, and the whole measuring and positioning process is simple and convenient.
2. The utility model provides an underwater stay cord positioner, through establishing measurement model, input first distance, second distance and third distance can obtain connecting device for the relative position of the immersed tube has been installed, whole calculation process is simple, and is convenient, swift.
3. According to the measuring and positioning method, in the whole measuring and positioning process, the position of the immersed tube to be installed relative to the installed immersed tube can be calculated by matching the inclination of the immersed tube to be installed with at least two sets of measuring ropes.
Drawings
Fig. 1 is a measurement schematic diagram of an underwater pull rope positioning device of the present invention.
FIG. 2 is an enlarged view of the section H in FIG. 1 according to the present invention.
Fig. 3 is a schematic diagram of the structure of the present invention for tensioning a first measuring line using a sling.
Fig. 4 is a schematic view of a calculation model of the underwater pull rope positioning device according to the present invention, in which a gathering point is placed in a coordinate system.
Fig. 5 is a measurement schematic of an underwater pull rope positioning system of the present invention.
Icon: 1-an installed immersed tube; 2-a sinking pipe to be installed; 3-a first measuring string; 4-a second measuring string; 5-a third measuring string; 6-a fixed pulley block; 7-a first connecting structure; 8-a second connecting structure; 9-a third connecting structure; 10-connecting a bushing; 11-hoisting weight; 12-a winch; 13-a collection point; 14-a cartridge; 15-ship.
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 utility model and are not intended to limit the utility model.
Example 1
As shown in fig. 1 to 3, the underwater pull rope positioning device according to the embodiment includes,
one end of each measuring rope is connected with the installed immersed tube 1, and the other end of each measuring rope is connected with a tensioning device for tensioning the measuring rope;
and the connecting device is used for being installed on the immersed tube 2 to be installed, and the middle parts of at least three measuring ropes are collected in the connecting device.
On the basis of the above, it is further preferable that the sensor is configured to measure a distance between a portion of the measuring string located between an end of the measuring string remote from the tensioning device and the connecting device.
And measuring the distance between the part of the measuring rope, which is positioned between the end part of the measuring rope far away from the tension device, and the connecting device through a sensor to obtain the distance between the connecting point, which is connected with the installed immersed tube 1, of the corresponding measuring rope and the connecting device, and further calculating the relative position of the connecting device relative to the installed immersed tube 1.
In addition, in a further preferable mode, the connecting device is a winding engine 12, a constant force spring or a spiral spring.
In another preferable mode, the tensioning device comprises a fixed pulley block 6 and a hoist 11, and one end of the measuring rope close to the tensioning device is connected with the hoist 11 after passing around the fixed pulley block 6.
The pulling force to the measuring rope is generated by the way of hanging the heavy object and the fixed pulley block, and the aim of tensioning the corresponding measuring rope is further achieved.
Specifically, the fixed pulley group comprises at least one fixed pulley.
On the basis, in a further preferable mode, the connecting device includes a connecting sleeve 10, the middle portions of at least three measuring ropes are collected at a pipe head 14 of the connecting sleeve 10, and the same side ends of the first measuring rope 3, the second measuring rope 4 and the third measuring rope 5 penetrate through the connecting sleeve 10 and then are tensioned by a winch 12.
The number of the connection sleeves 10 may be one or plural.
The beneficial effects of this embodiment: when the underwater stay rope positioning device is used, one end of a measuring rope is connected with an installed immersed tube 1, connecting points of the three measuring ropes and the installed immersed tube 1 are arranged in a triangular mode, the other end of the measuring rope is gathered to the connecting device and then tensioned by the tensioning device, then at least three measuring ropes obtain distances from the connecting points, connected with the installed immersed tube 1, of the corresponding measuring ropes to the connecting device, and then the relative position of the connecting device relative to the installed immersed tube 1 is calculated.
Example 2
As shown in fig. 1-3, the underwater pull rope positioning system of this embodiment includes an installed immersed tube 1, an immersed tube 2 to be installed, and the underwater pull rope positioning device of embodiment 1, three measuring ropes of which are defined as a first measuring rope 3, a second measuring rope 4 and a third measuring rope 5,
the installed immersed tube 1 is provided with a first connecting structure 7, a second connecting structure 8 and a third connecting structure 9, and the first connecting structure 7, the second connecting structure 8 and the third connecting structure 9 are arranged in a triangle,
one end of the first measuring rope 3 is connected with the first connecting structure 7, and the other end of the first measuring rope is tensioned through a tensioning device;
one end of the second measuring rope 4 is connected with the second connecting structure 8, and the other end of the second measuring rope is tensioned through a tensioning device;
one end of the third measuring rope 5 is connected with the third connecting structure 9, and the other end of the third measuring rope is tensioned through a tensioning device;
the first measuring rope 3, the second measuring rope 4 and the third measuring rope 5 are all gathered in the connecting device.
In addition, in a more preferable mode, the first connection structures 7, the second connection structures 8, and the third connection structures 9 are distributed in an equilateral triangle.
On the basis of the above, it is further preferable that the connecting device is disposed at an end of the to-be-installed immersed tube 2 close to the installed immersed tube 1.
The beneficial effects of this embodiment: the utility model provides an underwater stay cord positioning system, in whole measurement positioning process, utilize first measuring rope 3, second measuring rope 4 and third measuring rope 5 calculate respectively first distance, second distance and third distance, and then calculate the relative position of connecting device for the installation immersed tube 1, this scheme compares with traditional measurement calculation method, need not to install the measuring tower, need not supporting a lot of relevant measuring instruments, has improved the efficiency of construction, has reduced construction cost, and whole measurement positioning process is simple, and is convenient.
The utility model provides an underwater stay cord positioning system, whole measurement positioning process matches through two sets at least measuring rope and 2 gradients of waiting to install immersed tube, just can calculate and wait to install immersed tube 2 for the position of installing immersed tube 1, and this scheme compares with traditional measurement calculation method, need not to install the measuring tower, need not supporting a lot of relevant measuring instruments, has improved the efficiency of construction, has reduced construction cost, and whole measurement positioning process is simple, and is convenient.
Example 3
As shown in fig. 1-2, the underwater pull rope positioning method according to this embodiment is based on the underwater pull rope positioning system according to embodiment 2, and includes an installed immersed tube 1, an immersed tube 2 to be installed, and at least three measuring ropes, where the three measuring ropes are defined as a first measuring rope 3, a second measuring rope 4, and a third measuring rope 5, and the method includes the following steps:
s1, arranging a first connecting structure 7, a second connecting structure 8 and a third connecting structure 9 on an installed immersed tube 1, wherein the first connecting structure 7, the second connecting structure 8 and the third connecting structure 9 are arranged in a triangular shape, preferably in an equilateral triangle shape, and a gathering point 13 is arranged on the immersed tube 2 to be installed;
s2, connecting the first measuring rope 3 with the first connecting structure 7;
connecting the second measuring line 4 to the second connecting structure 8;
connecting the third measuring line 5 with the third connecting structure 9;
s3, collecting the same side ends, close to the immersed tube 2 to be installed, of the first measuring rope 3, the second measuring rope 4 and the third measuring rope 5 at the collecting point 13;
s4, tensioning the first measuring rope 3, the second measuring rope 4 and the third measuring rope 5;
s5, measuring a first distance based on the first measuring rope 3, wherein the first distance is the distance between the collecting point 13 and the first connecting structure 7;
measuring a second distance based on the second measuring rope 4, wherein the second distance is the distance between the collecting point 13 and the second connecting structure 8;
the distance between the collection point 13 and the third connection 9 is measured on the basis of the third distance measured by the third measuring line 5;
and S6, calculating the relative position of the collection point 13 relative to the installed immersed tube 1 based on the first distance, the second distance and the third distance.
The first measuring rope 3 is connected to the first connecting structure 7 as an example: first connecting structure 7 can be the lug, during the connection, only need with 3 rope ends of first measuring rope knot spacing on the lug can, perhaps the rope end is pressed from both sides with the connector and is pressed from both sides to add thick spacing on the lug.
Step S6 specifically includes: establishing a measurement model based on the positions of the first connecting structure 7, the second connecting structure 8 and the third connecting structure 9, and enabling the measurement model to satisfy the following conditions: when the first, second and third distances are entered, the relative position of the collection point 13 with respect to the installed sinking pipe 1 is obtained. And a measurement model is established, and the relative position of the collection point 13 relative to the installed immersed tube 1 can be obtained by inputting the first distance, the second distance and the third distance, so that the whole calculation process is simple, convenient and quick.
As shown in fig. 4, more specifically, the establishing of the measurement model in step S6 specifically includes the following steps:
s61, establishing a coordinate system, placing the first connecting structure 7, the second connecting structure 8 and the third connecting structure 9 in the coordinate system, and calibrating coordinates of the first connecting structure 7, the second connecting structure 8 and the third connecting structure 9;
s62, establishing a position relation model based on the coordinates of the first connecting structure 7, the second connecting structure 8 and the third connecting structure 9, so that the position relation model meets the following requirements: when the first distance, the second distance and the third distance are input, the coordinates of the collection point 13 can be obtained, and then the position of the immersed tube 2 to be installed relative to the installed immersed tube 1 is obtained.
The position relation model specifically comprises:
BC1 2＝(X-X1)2+(Y-Y1)2+(Z-Z1)2
BC2 2＝(X-X2)2+(Y-Y2)2+(Z-Z2)2
BC3 2＝(X-X3)2+(Y-Y3)2+(Z-Z3)2
in the formula, the coordinate of the first connecting structure 7 is marked as C1(X1，Y1，Z1) (ii) a The coordinate of the second connecting structure 8 is marked C2(X2，Y2，Z2) (ii) a The coordinate of the third connecting structure 9 is marked C3(X3，Y3，Z3) (ii) a PoolingThe position of point 13 is labeled (X, Y, Z); BC1Is a first distance; BC2Is a second distance; BC3Is the third distance.
Specifically, the first measuring rope 3, the second measuring rope 4 and the third measuring rope 5 are all steel wire members.
On the basis, in a further preferable mode, in step S4, the first measuring rope 3, the second measuring rope 4, and the third measuring rope 5 are tensioned by the winding machine 12 to ensure that the first measuring rope 3, the second measuring rope 4, and the third measuring rope 5 are in a tensioned state during measurement positioning, thereby ensuring the measurement accuracy.
In practical use, according to specific situations, the winch 12 can be separately configured for the first measuring rope 3, the second measuring rope 4 and the third measuring rope 5, and the first measuring rope 3, the second measuring rope 4 and the third measuring rope 5 can also be wound on the same winch 12.
The winch 12 is disposed on a ship 15 on the water surface or on the shore.
The winch 12 can be replaced by a constant force spring such as a spiral spring, and the tensioning effect can also be achieved.
Alternatively, the hoisting weight 11 plus the fixed pulley or fixed pulley block 6 can be used to generate a pulling force on the first measuring line 3, the second measuring line 4 and the third measuring line 5, as shown in fig. 3.
The measuring ropes of the embodiment are all provided with measuring structures used for displaying a certain length of the measuring rope.
One specific way is as follows: the first measuring rope 3 is provided with a first sensor, the first sensor is used for measuring the first distance, and the first sensor is a length measuring sensor or a distance measuring sensor;
and/or
The second measuring rope 4 is provided with a second sensor, the second sensor is used for measuring the second distance, and the second sensor is a length measuring sensor or a distance measuring sensor;
and/or
The third measuring rope 5 is provided with a third sensor, the third distance is measured by the third sensor, and the third sensor is a length measuring sensor or a distance measuring sensor.
The length measuring sensor can specifically select a pull rope displacement sensor, and a multi-turn absolute rotary encoder is arranged in the length measuring sensor;
the range sensor is typically a laser range finder.
The first distance, the second distance or the third distance are calculated through the length measuring sensor or the distance measuring sensor, so that the whole process is simple and convenient.
The first distance, the second distance or the third distance are calculated through the stay cord displacement sensor or the length measuring sensor or the distance measuring sensor, so that the whole process is simple and convenient.
In practical application, the lengths of the first measuring rope 3, the second measuring rope 4 and the third measuring rope 5 are dozens of meters, but the measuring range of the stay cord displacement sensor only needs a few meters, the stay cord displacement sensor is connected after the immersed tube 2 to be installed is in place quickly, and the stay cord displacement sensor is generally positioned at an initial position. Such as a dual GPS positioning vessel, with reference to the position of the vessel. The measuring range of the stay cord displacement sensor cannot be too large, the pull-out cord of the stay cord displacement sensor is long, and the precision can be reduced.
During specific measurement, the first distance, the second distance or the third distance is the reading-the distance from the outlet of the stay rope displacement sensor to the A-the AB pipe length, and the reading is read by the stay rope displacement sensor.
A constant can also be added, the reading is the distance between BC, the pipe head A needs to be fixed on a ship, and the outlet pull wire is pulled out in parallel.
The gathering point 13 is arranged at the end part of the immersed tube 2 to be installed, which is close to the immersed tube 1 to be installed, so as to avoid the interference of the structure of the immersed tube 2 to be installed on the first measuring rope 3, the second measuring rope 4 or the third measuring rope 5.
On the basis, in a further preferable mode, the immersed tube 2 to be installed is connected with a connecting sleeve 10, the gathering point 13 is arranged at a tube head 14 of the connecting sleeve 10, and the same-side ends of the first measuring rope 3, the second measuring rope 4 and the third measuring rope 5 penetrate through the connecting sleeve 10 and then are tensioned by a winch 12.
A partial inlet end wall of the tip 14 may require a rounding process to prevent the tip 14 from cutting the rope.
In addition, in a more preferable mode, the first measuring rope 3, the second measuring rope 4, and the third measuring rope 5 are all steel wire members.
The beneficial effects of this embodiment: according to the underwater stay rope positioning method, in the whole measuring and positioning process, the first distance, the second distance and the third distance are calculated by the first measuring rope 3, the second measuring rope 4 and the third measuring rope 5 respectively, and then the relative position of the gathering point 13 relative to the installed immersed tube 1 is calculated.
The calculation method is used for calculating the position of the immersed tube 2 to be installed relative to the immersed tube 1 installed, and in the whole process, compared with the traditional measurement calculation method, the scheme does not need to install a measuring tower and a related measuring instrument, so that the construction efficiency is improved, the construction cost is reduced, and the whole calculation process is simple and convenient.
According to the calculation method, the connecting sleeve 10 is considered as one point during calculation, but in the actual construction process, the influence of the diameter of the measuring rope on the calculation result needs to be considered during calculation due to the fact that the measuring rope has the diameter, certain deviation correction is carried out, and the influence of the error on the whole calculation result is small.
On the basis, in a further preferred mode, the technical principle of the measuring rope adopted by the scheme is space distance rear intersection. Arranging measuring points C on the installed immersed tube1、C2、C3Three measuring ropes which are not on the same plane are pulled out from the measuring points, the first measuring rope 3, the second measuring rope 4 and the third measuring rope 5 can be made of steel wires, and have certain strength, can bear enough tensile force, and elastic deformation can meet the standard requirement of the measuring ropes. A fixed pipe head 14 of the connecting sleeve 10 is arranged on the immersed pipe to be installed at a point B, and the first measuring rope 3, the second measuring rope 4 and the third measuring rope 5 are converged at the point B to carry outIs bundled and then passes through the connecting sleeve 10 to extend to the other end A point, BC of the sleeve1、BC2、BC3Is a straight line segment and the AB sheath is of a fixed length. The straight-line distance between the installed immersed tube 1 and the immersed tube 2 to be installed can be back calculated only by reading the respective readings of the three measuring ropes by the stay rope displacement sensor at the point A or the rear end, wherein L is equal to CiB+BA。
Example 4
As shown in fig. 4 and 5, the underwater pull rope positioning system of the present embodiment is different from that of embodiment 2 or 3 in that: the underwater pull rope positioning device comprises at least two underwater pull rope positioning devices as described in embodiment 1, wherein the immersed tube 2 to be installed is provided with an inclination instrument for measuring the inclination of the immersed tube 2 to be installed.
The application a stay cord positioning system under water, when using: obtaining the relative positions of at least two connecting devices relative to the installed immersed tube 1 by using the underwater stay cord positioning device, and installing an inclination instrument for measuring the inclination of the immersed tube 2 to be installed on the immersed tube 2 to be installed; and calculating the position of the immersed tube 2 to be installed relative to the immersed tube 1 to be installed according to the relative positions of the at least two connecting devices relative to the immersed tube 1 to be installed and the inclination of the immersed tube 2 to be installed.
The measurement positioning method for underwater installation of the immersed tube in the embodiment is based on the underwater pull rope positioning system in the embodiment, and comprises the following steps:
A1. the underwater stay rope positioning method of the embodiment 3 is utilized to obtain the relative positions of at least two gathering points 13 relative to the installed immersed tube 1, and an inclination instrument for measuring the inclination of the immersed tube 2 to be installed is installed on the immersed tube 2 to be installed.
A2. And calculating the position of the immersed tube 2 to be installed relative to the immersed tube 1 to be installed according to the relative positions of the at least two collecting points 13 relative to the immersed tube 1 to be installed and the inclination of the immersed tube 2 to be installed.
Specifically, take two collection points 13 as an example, and respectively denote B1And B2In the underwater pull rope positioning method described in embodiment 1 or 2, B is1Say B1C1Is a first distance; b is1C2Is a second distance; b is1C3Is a third distance; for B2Say B2C4Is a first distance; b is2C5Is a second distance; b is2C6Is the third distance.
In the whole process, the light passes through the collection point 13B1And B2Can determine the line segment B1B2The reference surface of the immersed tube 2 to be installed passes through the line segment B1B2Then, based on an inclination instrument, such as an inclinometer, installed on the immersed tube 2 to be installed and used for measuring the inclination of the immersed tube 2 to be installed, the inclination of the reference plane can be obtained, based on the line segment B1B2The position of the reference plane and the inclination of the reference plane, namely the position of the reference plane can be obtained, so that the position of the immersed tube 2 to be installed relative to the installed immersed tube 1 is calculated.
The inclinometer may be mounted inside the immersed tube 2 to be installed.
The measuring and positioning method for underwater installation of the immersed tube is applied to at least measuring two gathering points 13 when the immersed tube 2 to be installed is positioned, and the distance between the two points is larger, the positioning precision of the immersed tube 2 to be installed is higher, so the gathering points 13 are arranged near two corner points of the butt joint end of the immersed tube 2 to be installed and the immersed tube 1 to be installed.
According to the measuring and positioning method, in the whole measuring and positioning process, the position of the immersed tube 2 to be installed relative to the installed immersed tube 1 can be calculated by matching the inclination of the immersed tube 2 to be installed with at least two sets of measuring ropes.
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 utility model, 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. An underwater pull rope positioning device is characterized by comprising,
one end of each measuring rope is connected with the installed immersed tube (1), and the other end of each measuring rope is connected with a tensioning device for tensioning the measuring rope;
and the connecting device is used for being installed on the immersed tube (2) to be installed, and the middle parts of at least three measuring ropes are collected in the connecting device.
2. An underwater pull rope positioning device as claimed in claim 1, wherein the measuring rope has a sensor thereon for measuring the distance of the measuring rope between the end of the measuring rope remote from the tensioning device and the attachment device.
3. The underwater draw string positioning device of claim 2, wherein the sensor is a draw string displacement sensor, a length measuring sensor, or a distance measuring sensor.
4. An underwater pull rope positioning device according to claim 1, wherein the tensioning device is a winch (12), a constant force spring or a spiral spring.
5. An underwater pull rope positioning device according to claim 1, characterised in that the tensioning device comprises a fixed pulley block (6) and a hoist weight (11), and that the measuring rope is connected to the hoist weight (11) after passing around the fixed pulley block (6) at the end of the measuring rope close to the tensioning device.
6. An underwater pull rope positioning device according to any one of claims 1 to 5, characterised in that the connection device is provided at the end of the immersed tube (2) to be installed which is close to the installed immersed tube (1).
7. The underwater stay cord positioning device according to any one of claims 1 to 5, wherein the connecting device comprises a connecting sleeve (10), the middle parts of at least three measuring ropes are gathered at the pipe head (14) of the connecting sleeve (10), the three measuring ropes are defined as a first measuring rope (3), a second measuring rope (4) and a third measuring rope (5), and the same side ends of the first measuring rope (3), the second measuring rope (4) and the third measuring rope (5) penetrate through the connecting sleeve (10) and then are tensioned by a winch (12).
8. An underwater pull rope positioning system comprising an installed immersed tube (1) and an immersed tube (2) to be installed, characterized by further comprising an underwater pull rope positioning device as claimed in any one of claims 1 to 7, wherein three measuring ropes are defined as a first measuring rope (3), a second measuring rope (4) and a third measuring rope (5),
the installed immersed tube (1) is provided with a first connecting structure (7), a second connecting structure (8) and a third connecting structure (9), the first connecting structure (7), the second connecting structure (8) and the third connecting structure (9) are arranged in a triangular shape,
one end of the first measuring rope (3) is connected with the first connecting structure (7), and the other end of the first measuring rope is tensioned through a tensioning device;
one end of the second measuring rope (4) is connected with the second connecting structure (8), and the other end of the second measuring rope is tensioned through a tensioning device;
one end of the third measuring rope (5) is connected with the third connecting structure (9), and the other end of the third measuring rope is tensioned through a tensioning device;
the first measuring rope (3), the second measuring rope (4) and the third measuring rope (5) are all collected in the connecting device.
9. An underwater pull rope positioning system according to claim 8, characterised in that the first (7), second (8) and third (9) connection structures are distributed in an equilateral triangle.
10. An underwater drawstring locator system according to claim 8 or 9 including at least two underwater drawstring locators according to any of claims 1 to 7, wherein the immersed tube (2) to be installed is fitted with a tilt instrument for measuring the inclination of the immersed tube (2) to be installed.
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| CN202122086342.8U CN215639150U (en) | 2021-08-31 | 2021-08-31 | Underwater stay cord positioning device and underwater stay cord positioning system |
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| CN202122086342.8U CN215639150U (en) | 2021-08-31 | 2021-08-31 | Underwater stay cord positioning device and underwater stay cord positioning system |
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