CN112064686B - Method for monitoring opening amount of immersed tube tunnel joint - Google Patents
Method for monitoring opening amount of immersed tube tunnel joint Download PDFInfo
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- CN112064686B CN112064686B CN202010853264.7A CN202010853264A CN112064686B CN 112064686 B CN112064686 B CN 112064686B CN 202010853264 A CN202010853264 A CN 202010853264A CN 112064686 B CN112064686 B CN 112064686B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/063—Tunnels submerged into, or built in, open water
- E02D29/073—Tunnels or shuttering therefor assembled from sections individually sunk onto, or laid on, the water-bed, e.g. in a preformed trench
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/10—Miscellaneous comprising sensor means
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- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
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Abstract
The invention discloses a method for monitoring the opening amount of a immersed tube tunnel joint, which is characterized in that reserved holes with certain depth are respectively arranged in concrete pipe joints at the left side and the right side of the tunnel joint, one stainless steel rod is arranged in the hole at one side, three stainless steel rods are arranged in the hole at the other side, the steel rods at the two sides are butted by using three wireless displacement sensors, the steel rods are connected with the displacement sensors through steel wires, and data are monitored through the displacement of the three displacement sensors. The displacement of the pipe section joint can be monitored in all directions, including the dislocation, the opening, the torsion and the like of the pipe section joint; and the monitoring device is arranged in a reserved hole in the pipe section structure, does not occupy the limit of the tunnel building and is not easy to damage.
Description
Technical Field
The invention discloses 201811048664X divisional application, relates to a tunnel detection device, and particularly relates to a monitoring device for monitoring the moving state and the opening amount of a immersed tube tunnel joint.
Background
The expansion amount of the immersed tube tunnel joint can directly reflect the operation state of a connecting component at the immersed tube tunnel joint, specifically comprises the compression state and the shear key relative displacement of a pipe joint GINA water stop, and can evaluate the water stop performance of the GINA water stop and the stress state of the shear key in real time. The existing immersed tube tunnel joint opening amount is that after the immersed tube tunnel pipe joint is settled, a displacement meter bracket is arranged at the joint, and three-way displacement meters are formed by three displacement sensors arranged on a support, so that the relative displacement in the directions of x, y and z at the two sides of the joint can be respectively measured.
The existing monitoring method has the problems that the displacement monitoring precision of the pipe joint is high under horizontal and vertical movement due to rigid connection, but the displacement monitoring of the pipe joint under stretching and twisting is difficult, the field installation is inconvenient, the building limit is occupied, the exposed test sensor is easy to damage, the wire connection is inconvenient, and the like, and the technical problem to be solved urgently is solved.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the monitoring device which is convenient to install, does not occupy the space in a tunnel and can monitor the moving state and the opening amount of the immersed tunnel joint.
The technical scheme is as follows: in order to solve the technical problem, the invention provides a device for monitoring the opening amount of a immersed tube tunnel joint, which comprises rod pieces and a displacement sensor connected between the rod pieces, wherein a first reserved hole and a second reserved hole with opposite openings are formed in the joint of adjacent immersed tubes, the first rod piece is fixedly installed in the first reserved hole, and the second rod piece is fixedly installed in the second reserved hole.
Specifically, first member is a member that bottom and first reservation hole diapire fixed connection and free end stretch out first reservation hole, the second member is three members that bottom and second reservation hole fixed connection and free end stretch out second reservation hole, and the bottom of three members is regular triangle distribution, the projection of first member on regular triangle is located its centroid, the free end of first member and the free end of second member are crisscross each other.
Specifically, the rod piece is a stainless steel rod piece, a steel wire is connected between the second rod piece and the first rod piece, and the displacement sensor is connected on the steel wire in series.
In particular, the displacement sensor is a wireless displacement sensor.
Specifically, the bottom end of the rod piece is fixedly connected to an adjustable steel support, the adjustable steel support is perpendicular to the rod piece, and the rod piece is parallel to the axis of the immersed tube.
The invention also provides a monitoring method based on the immersed tube tunnel joint opening amount monitoring device, which comprises the following steps:
step 1, arranging a device for monitoring the opening amount of a immersed tunnel joint, wherein the device consists of four stainless steel rods, a steel base, steel wires and three wireless displacement sensors, the stainless steel rods are respectively installed and fixed in reserved holes on two sides of the joint, one stainless steel rod is arranged on one side, the three stainless steel rods are arranged on the other side, and the stainless steel rods on the two sides are connected with the wireless displacement sensors by the steel wires;
and 4, arranging monitoring devices at least at four points on the side surface of the pipe joint, and comprehensively judging the relative position relation of the joint. The position of the monitoring device is selected to reflect the relative position change of the whole joint part while avoiding the shear key and the prestressed steel beam of the joint part.
The invention principle is as follows: set up the reservation hole of certain degree of depth respectively in the concrete pipe joint of tunnel joint left and right both sides, install a stainless steel pole in the hole of one of them side, install three stainless steel poles in the hole of one side in addition, utilize three wireless displacement sensor to dock the steel pole of both sides, be connected through the steel wire between stainless steel pole and the displacement sensor, displacement monitoring data through three displacement sensor, can infer the moving as a whole state of pipe joint, can calculate the opening that the pipe joint connects again.
Has the advantages that:
1. the device can monitor the displacement of the pipe section joint in all directions, including the dislocation, the opening, the torsion and the like of the pipe section joint;
2. the device is arranged in a reserved hole in a pipe section structure, does not occupy the limit of a tunnel building and is not easy to damage;
3. and a wireless displacement sensor is adopted, and a measuring line is not required to be arranged.
In addition to the technical problems addressed by the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems solved by the present invention, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a displacement sensor mounting apparatus;
FIG. 2 is a longitudinal sectional view of a prepared hole;
FIG. 3 is a plan view of a sensor connection;
FIG. 4 is a diagram of a three-way displacement meter calculation model;
FIG. 5 is a schematic layout of a pipe section side monitoring device;
in the figure: 1, sinking a pipe joint; 2, pipe joint joints; 3, a GINA water stop band; 4, leveling the steel support; 5, reserving holes; 6 stainless steel rods; 7, steel wires; 8 wireless displacement sensor.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The immersed tube tunnel joint of this embodiment opens the volume monitoring devices as shown in figure 1, figure 2 and figure 3, be at tunnel immersed tube coupling 1 the pipe coupling 2 the inside concrete pipe coupling of GINA waterstop in set up the reservation hole of certain degree of depth respectively in, but install leveling steel support 4 in the reservation hole, but install a stainless steel pole 6 on leveling steel support 4 of one side wherein, install three stainless steel poles 6 in the hole of one side in addition, utilize steel wire 7 to be connected three wireless displacement sensor 8 and the steel pole of both sides.
The three-way displacement meter is calculated by taking out the displacement meter part separately as shown in fig. 4, the formed part is a triangular pyramid, and AB, AC and AD represent three displacement meters and steel wires connected with the displacement meters. Because the distance between the three steel rods is constant, the lengths of BC, BD and CD are constant, and the enclosed space is always an equilateral triangle. And the plane of the BCD is always parallel to the side surface of the joint with the three steel rods. Along with the relative position of two side surfaces of the joint is changed continuously, the lengths of AB, AC and AD are changed, the position of point A and the inclined inclination angle of BCD are changed continuously, but the shape is not changed.
Placing A, B, C, D four points into a rectangular space coordinate system, BCD on x0y plane, setting B (0, -1, 0) C (B)
0, 0) D (0, 1, 0) a (x, y, z), with AC length a, AD length b, and AB length c, solved by the equation established for the distance from point a to point B, C, D:
while the value of z also represents the distance of point a to the BCD surface.
Thus, the relative positions of the A, B, C, D four points can be known by matching the tilt angle sensor. The motion states of both side surfaces of the joint are estimated.
Data processing for several cases:
horizontal displacement of two sides of joint
The three displacement sensors are increased or decreased in equal ratio, and the increment is same as delta X1
The total length of the displacement sensor and the connected steel wire is X, the distance between the three stainless steel rods is X, the horizontal displacement of two sides of the joint is delta X, and the variable quantity of the displacement meter is delta X1
Relative vertical dislocation at two sides of joint
The three displacement sensors are represented as the number 1 displacement sensor is increased, the rest two displacement sensors are decreased, or the number 1 displacement sensor is decreased, the rest two displacement sensors are increased, and the number 1 displacement sensor increment is delta X2
The total length of the displacement sensor and the connected steel wire is X, the distance between the three stainless steel rods is X, the vertical relative displacement of two sides of the joint is delta X, and the variation of the top displacement meter is delta X2
When in use, the method comprises the following steps:
1. arranging a device for monitoring the opening amount of a immersed tube tunnel joint, wherein the device consists of 4 stainless steel rods, a steel base, steel wires and 3 wireless displacement sensors, the stainless steel rods are respectively installed and fixed in reserved holes at two sides of the joint, 1 stainless steel rod is arranged at one side, three stainless steel rods are arranged at the other side, and the stainless steel rods at two sides are connected with the wireless displacement sensors by the steel wires;
2. the three stainless steel rods are arranged in an equilateral triangle, and the stainless steel rod on the other side is opposite to the centroid of the triangle; the upper part and the lower part are arranged in opposite positions, and the planes of the lower part and the upper part are parallel to the horizontal plane. The distance between the three rods is the total length of the displacement meter and the connected steel wire. For convenience of calculation and explanation, the displacement sensor connected with the upper rod is named as a No. 1 displacement meter;
3. a steel base is arranged at the bottom of the hole reserved with the hole, the steel base is connected with the steel rod through threads, and the steel support has a leveling function;
4. the depth of the reserved hole is not less than the maximum compression amount of the GINA water stop band;
5. and arranging monitoring devices at least at four points on the side surface of the pipe joint, and comprehensively judging the relative position relation of the joints. The position of the monitoring device is selected to avoid the shear keys and the prestressed steel beams of the joint part and well reflect the relative position change of the whole joint part, so the selected position of the monitoring device is shown in fig. 5.
Claims (3)
1. A method for monitoring the opening amount of a joint of a immersed tunnel is characterized by comprising the following steps:
step 1, arranging a device for monitoring the opening amount of a immersed tube tunnel joint, wherein the device consists of four rod pieces, a steel base, steel wires and three wireless displacement sensors, the rod pieces are respectively installed and fixed in reserved holes at two sides of the joint, one rod piece is arranged at one side, the three rod pieces are arranged at the other side, and the rod pieces at the two sides are connected with the wireless displacement sensors by the steel wires;
step 2, the three rod pieces are arranged in an equilateral triangle, and the rod piece on the other side is over against the centroid of the triangle; the relative position arrangement of one upper part and two lower parts is adopted, and the planes of the two lower parts are parallel to the horizontal plane; the distance between the three rods is the total length of the displacement sensor and the connected steel wire;
step 3, mounting a steel base at the bottom of the hole reserved with the hole, wherein the steel base is connected with the rod piece through threads, and the steel base has a leveling function; the depth of the reserved hole is not less than the maximum compression amount of the GINA water stop band;
step 4, arranging monitoring devices at least at four points on the side surface of the pipe joint, and comprehensively judging the relative position relation of the joints; the selection of the position of the monitoring device reflects the relative position change of the whole joint part while avoiding the shear keys and the prestressed steel beams of the joint part;
the member is the stainless steel member, and the joint department of adjacent immersed tube has the relative first hole of reserving of opening and the hole is reserved to the second, and the first member of fixed mounting in the first hole of reserving, the second is reserved the hole fixed mounting second member in the hole, first member is a member that bottom and first reservation hole diapire fixed connection and free end stretch out first reservation hole, the second member is three members that bottom and second reservation hole fixed connection and free end stretch out second reservation hole, and the bottom of three members is regular triangle distribution, the projection of first member on regular triangle is located its centroid, the free end of first member and the free end of second member are crisscross each other.
2. The method for monitoring the opening amount of the immersed tube tunnel joint according to claim 1, wherein the method comprises the following steps:
the monitoring device is simplified into a triangular pyramid model consisting of points ABCD, and AB, AC and AD represent three displacement sensors and steel wires connected with the displacement sensors; BC, BD and CD form an equilateral triangle, and the plane of BCD is always parallel to the side surfaces of the three bar members of the joint; along with the relative position of two side surfaces of the joint is changed continuously, the lengths of AB, AC and AD are changed, the position of the point A and the inclined inclination angle of BCD are changed continuously, but the shape is not changed;
placing A, B, C, D four points into a rectangular space coordinate system, BCD on x0y plane, setting B (0, -1, 0) C (B)
0, 0) D (0, 1, 0) a (x, y, z), with AC length a, AD length b, and AB length c, solved by the equation established for the distance from point a to point B, C, D:
meanwhile, the value of z also represents the distance from the point A to the BCD surface;
calculating A, B, C, D relative positions of four points through sensor reading to obtain the motion state of the immersed tube at two sides of the joint;
data processing for several cases:
The three displacement sensors are increased or decreased in equal ratio, and the increment is same as delta X1
The total length of the displacement sensor and the connected steel wire is X, the distance between the three rod pieces is X, the horizontal displacement of two sides of the joint is delta X, and the variable quantity of the displacement sensor is delta X1：
The three displacement sensors are represented as the number 1 displacement sensor is increased, the rest two displacement sensors are decreased, or the number 1 displacement sensor is decreased, the rest two displacement sensors are increased, and the number 1 displacement sensor increment is delta X2
The total length of the displacement sensor and the connected steel wire is X, the distance between the three rod pieces is X, the vertical relative displacement of two sides of the joint is delta X, and the variation of the top displacement sensor is delta X2：
3. The method for monitoring the opening amount of the immersed tube tunnel joint according to claim 1, wherein the method comprises the following steps: the steel base is an adjustable steel support which is vertical to the rod piece, and the rod piece is parallel to the axis of the immersed tube.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017108501755 | 2017-09-21 | ||
| CN201710850175 | 2017-09-21 | ||
| CN201811048664.XA CN109797782B (en) | 2017-09-21 | 2018-09-10 | Immersed tube tunnel joint opening amount monitoring device and method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811048664.XA Division CN109797782B (en) | 2017-09-21 | 2018-09-10 | Immersed tube tunnel joint opening amount monitoring device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112064686A CN112064686A (en) | 2020-12-11 |
| CN112064686B true CN112064686B (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811048664.XA Expired - Fee Related CN109797782B (en) | 2017-09-21 | 2018-09-10 | Immersed tube tunnel joint opening amount monitoring device and method |
| CN202010853264.7A Active CN112064686B (en) | 2017-09-21 | 2018-09-10 | Method for monitoring opening amount of immersed tube tunnel joint |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811048664.XA Expired - Fee Related CN109797782B (en) | 2017-09-21 | 2018-09-10 | Immersed tube tunnel joint opening amount monitoring device and method |
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| CN (2) | CN109797782B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2020541B1 (en) * | 2018-03-06 | 2019-09-13 | Fugro N V | Position Monitoring of a Gasket between Tunnel Segments |
| CN110067270A (en) * | 2019-05-29 | 2019-07-30 | 中铁第六勘察设计院集团有限公司 | A kind of tunnel pipe connector test specimen shear structure multidimensional stress detection method |
| CN110836652B (en) * | 2019-11-18 | 2021-04-30 | 上海交大海科检测技术有限公司 | Immersed tube tunnel construction displacement monitoring device and monitoring method thereof |
| CN111047843B (en) * | 2019-12-25 | 2021-02-19 | 广州市市政集团有限公司 | Immersed tube tunnel monitoring and early warning device |
| CN115638758B (en) * | 2022-12-26 | 2023-04-18 | 中交第一航务工程局有限公司 | Immersed tube tunnel horizontal displacement monitoring method |
| CN116576792B (en) * | 2023-07-12 | 2023-09-26 | 佳木斯大学 | Intelligent shooting integrated device based on Internet of things |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201892527U (en) * | 2010-11-10 | 2011-07-06 | 上海市电力公司 | Pipe section joint opening monitoring device for electric power tunnels |
| KR20110099578A (en) * | 2010-03-02 | 2011-09-08 | 주식회사 에이원콘크리트 | Water leak sensing type under-drain block |
| CN104807497A (en) * | 2015-02-16 | 2015-07-29 | 中交天津港湾工程研究院有限公司 | Immersed tube tunnel construction monitoring system and construction technology thereof |
| CN106652405A (en) * | 2016-11-10 | 2017-05-10 | 同济大学 | Tunnel structure remote monitoring system based on various wireless sensor nodes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586606B (en) * | 2013-11-15 | 2015-08-12 | 广西大学 | Welding for steel structure contraction distortion automatic monitoring method |
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2018
- 2018-09-10 CN CN201811048664.XA patent/CN109797782B/en not_active Expired - Fee Related
- 2018-09-10 CN CN202010853264.7A patent/CN112064686B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110099578A (en) * | 2010-03-02 | 2011-09-08 | 주식회사 에이원콘크리트 | Water leak sensing type under-drain block |
| CN201892527U (en) * | 2010-11-10 | 2011-07-06 | 上海市电力公司 | Pipe section joint opening monitoring device for electric power tunnels |
| CN104807497A (en) * | 2015-02-16 | 2015-07-29 | 中交天津港湾工程研究院有限公司 | Immersed tube tunnel construction monitoring system and construction technology thereof |
| CN106652405A (en) * | 2016-11-10 | 2017-05-10 | 同济大学 | Tunnel structure remote monitoring system based on various wireless sensor nodes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112064686A (en) | 2020-12-11 |
| CN109797782A (en) | 2019-05-24 |
| CN109797782B (en) | 2020-07-17 |
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