CN115452344A - Hand hole plugging quality detection structure and detection method - Google Patents
Hand hole plugging quality detection structure and detection method Download PDFInfo
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- CN115452344A CN115452344A CN202211116037.1A CN202211116037A CN115452344A CN 115452344 A CN115452344 A CN 115452344A CN 202211116037 A CN202211116037 A CN 202211116037A CN 115452344 A CN115452344 A CN 115452344A
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- pull rod
- hand hole
- quality detection
- plugging
- deformation
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- 238000001514 detection method Methods 0.000 title claims abstract description 36
- 230000000903 blocking effect Effects 0.000 claims description 22
- 239000000523 sample Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 3
- 229920000297 Rayon Polymers 0.000 claims description 2
- 238000012372 quality testing Methods 0.000 claims 1
- 238000010998 test method Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Classifications
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention discloses a hand hole plugging quality detection structure which comprises a pull rod, a supporting device, a loading device, a deformation measuring device, a shield segment arranged on the inner periphery of a tunnel and a plugging structure used for plugging hand holes of the shield segment, wherein the supporting device is arranged on the inner side of the shield segment, a through hole corresponding to the plugging structure is arranged on the supporting device, the loading device is arranged on the inner side of the supporting device and used for applying pulling force to the pull rod, one end of the pull rod is connected with the plugging structure, the other end of the pull rod penetrates through the supporting device through the through hole and is connected with the deformation measuring device, the deformation measuring device is used for recording the deformation of the pull rod along the length direction, and the hand hole plugging quality detection structure can judge the bearing capacity limit and the durability of the plugging structure, is high in practicability and is convenient to operate.
Description
Technical Field
The invention is used in the technical field of water delivery tunnel engineering, and particularly relates to a hand hole plugging quality detection structure and a detection method.
Background
At present, in order to effectively relieve the imbalance of water resource distribution, the contradiction that the water resource condition is not matched with the productivity layout, more and more diversion projects are lifted to schedule, because the shield tunnel has the characteristics of fast construction progress, high safety and the like, and is widely diverted to the diversion projects, the shield tunnel utilizes high-strength bolts to firmly fix shield segments together to form a complete tubular structure, thereby forming a water delivery pipeline, but the shield tunnel is different from other shield tunnels, because the tunnel is filled with water flow for a long time, bolts corroding the shield segments can be plugged, so that the hand holes of the shield segment bolts need to be plugged during construction, thereby the durability of the structure meets the requirements, and therefore, the quality of the hand hole plugging structure of the shield segments of the water delivery tunnel is required to be periodically detected, and the quality of the hand hole plugging of the shield segments of the water delivery tunnel is ensured to be closed.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provides a hand hole plugging quality detection structure and a detection method, wherein the hand hole plugging quality detection structure can be used for detecting the hand hole plugging quality of a shield segment of a water delivery tunnel.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a hand hole shutoff quality detection structure, includes pull rod, strutting arrangement, loading device, deformation measuring device, establishes at the interior week shield of tunnel section of jurisdiction and is used for the shutoff structure in shield section of jurisdiction hand hole, strutting arrangement installs the inboard of shield section of jurisdiction, strutting arrangement is last be equipped with the through-hole that shutoff structure corresponds, loading device installs strutting arrangement's inboard, be used for to the pull rod applys the pulling force, the one end of pull rod with shutoff structure links to each other, and the other end passes through the through-hole passes strutting arrangement with deformation measuring device links to each other, deformation measuring device is used for the record the deformation of pull rod along length direction.
Preferably, one end of the pull rod connected with the blocking structure is provided with a connecting part, and viscose glue is arranged in front of the connecting part and the blocking structure.
Preferably, the supporting device comprises a supporting seat and supporting legs, the supporting legs are located between the supporting seat and the shield segments, the supporting legs are arranged on the periphery of the supporting seat, and the through holes are located at the central position of the supporting seat.
Preferably, the loading device comprises a center-penetrating jack, the center-penetrating jack is sleeved on the periphery of the pull rod, a fixing part is arranged between the center-penetrating jack and the pull rod, and the fixing part is located at one end, close to the inner side of the tunnel, of the center-penetrating jack.
Preferably, the fixing part is a wedge-shaped block.
Preferably, the deformation measuring device comprises a dial indicator, the dial indicator comprises a probe, the probe and the pull rod are coaxially arranged, and the tip end of the probe is abutted to the end face of the inner side of the pull rod.
The invention also provides a detection method using the hand hole plugging quality detection structure, which comprises the following steps:
the method comprises the following steps: fixedly connecting one end of the pull rod with the blocking structure;
step two: mounting the support device on the shield segment through the pull rod;
step three: mounting the loading device on the support device;
step four: and installing the deformation measuring device in the tunnel, connecting the deformation measuring device with the end surface of the inner side of the pull rod, and starting the loading device to carry out quality detection on the plugging structure.
Preferably, in the fourth step, the pull rod is loaded by the loading device in multiple steps according to the bearing capacity to be achieved by the plugging structure, the deformation value of the pull rod is recorded once at a certain time interval under the action of the same-level load, and the next loading can be performed when the deformation value of the pull rod is less than a certain value twice continuously.
Preferably, each step is loaded with one third of the load capacity to be achieved by the closure structure.
Preferably, in the fourth step, when the loading force of the loading device reaches the design bearing capacity of the blocking structure, the duration is 30 minutes, and when the deformation value of the pull rod is less than 1mm, the mass of the blocking structure meets the design requirement, otherwise, the mass does not meet the design requirement.
One of the above technical solutions has at least one of the following advantages or beneficial effects: this hand hole shutoff quality detection structure includes the pull rod, strutting arrangement, deformation measuring device, establish the shield structure in the interior week of tunnel section of jurisdiction and be used for shutoff shield structure section of jurisdiction hand hole, the one end of pull rod links to each other with plugging structure, the other end passes strutting arrangement and links to each other with deformation measuring device, deformation measuring device takes notes the deflection of pull rod along length direction, in operation, loading device stimulates the pull rod, if plugging structure's quality is good can take place to warp, then the pull rod removes along length direction, deformation measuring device can show the numerical value that the pull rod removed, namely plugging structure's deformation value, can judge whether plugging structure's quality satisfies the requirement according to deformation measuring device, this hand hole shutoff quality detection structure can judge plugging structure's bearing capacity limit and durability, high practicability, and convenient operation.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of one embodiment of the hand hole plugging quality detection structure of the present invention.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, preferred embodiments of which are illustrated in the accompanying drawings, wherein the drawings are provided for the purpose of visually supplementing the description in the specification and so forth, and which are not intended to limit the scope of the invention.
In the present invention, if directions (up, down, left, right, front, and rear) are described, it is only for convenience of describing the technical solution of the present invention, and it is not intended or implied that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, it is not to be construed as limiting the present invention.
In the invention, the meaning of "a plurality" is one or more, the meaning of "a plurality" is more than two, and the terms of "more than", "less than", "more than" and the like are understood to exclude the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
In the present invention, unless otherwise specifically limited, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can be detachably connected and can be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either internal to the two elements or in an interactive relationship of the two elements. The technical field can reasonably determine the specific meaning of the words in the invention by combining the specific contents of the technical scheme.
Fig. 1 shows a reference direction coordinate system of an embodiment of the present invention, and the following describes the embodiment of the present invention with reference to the direction shown in fig. 1.
The embodiment of the invention provides a hand hole plugging quality detection structure, referring to fig. 1, which comprises a pull rod 100, a support device 200, a loading device 600, a deformation measuring device 300, a shield segment 400 arranged on the inner periphery of a tunnel and a plugging structure 500 for plugging a hand hole of the shield segment 400, wherein the support device 200 is arranged on the inner side of the shield segment 400, the support device 200 is provided with a through hole 210 corresponding to the plugging structure 500, the loading device 600 is arranged on the inner side of the support device 200 and used for applying a pulling force to the pull rod 100, one end of the pull rod 100 is connected with the plugging structure 500, the other end of the pull rod 100 penetrates through the support device 200 through the through hole 210 and is connected with the deformation measuring device 300, the deformation measuring device 300 is used for recording the deformation of the pull rod 100 along the length direction, in operation, the loading device 600 pulls the pull rod 100, if the plugging structure 500 is not good in quality and can deform, the pull rod 100 moves along the length direction, the deformation measuring device 300 can display the moving value of the pull rod 100, namely the deformation value of the plugging structure 500, the quality detection structure can judge whether the quality of the plugging structure and the bearing capability of the plugging structure 500, and the bearing capability of the plugging structure is convenient to carry out the bearing and the bearing capability of the bearing.
In some embodiments, referring to fig. 1, the end of the pull rod 100 connected to the blocking structure 500 is provided with the connecting portion 110, the connecting portion 110 is provided with an adhesive 700 in front of the blocking structure 500, the connecting portion 110 has a large contact area with the blocking structure 500 to ensure stable connection between the blocking structure 500 and the pull rod 100, and preferably, the strength of the adhesive 700 is above 20KN to ensure that the blocking structure 500 and the pull rod 100 are stably connected together, and when the loading device 600 pulls the pull rod 100, the adhesive 700 does not deform, and when in operation, the adhesive 700 is coated on the surface of the blocking structure 500, and loading is performed when the pull rod 100 and the blocking structure 500 are bonded for more than 24 hours.
Referring to fig. 1, the supporting device 200 includes a supporting seat 220 and supporting legs 230, the supporting legs 230 are located between the supporting seat 220 and the shield segment 400, the supporting legs 230 are disposed at the periphery of the supporting seat 220, and the through holes 210 are located at the center of the supporting seat 220.
As a preferred embodiment of the present invention, referring to fig. 1, the loading device 600 includes a penetrating jack, the penetrating jack is sleeved on the outer periphery of the pull rod 100, a fixing member 610 is disposed between the penetrating jack and the pull rod 100, and the fixing member 610 is located at one end of the penetrating jack near the inner side of the tunnel.
Referring to fig. 1, the fixing member 610 is a wedge block.
Referring to fig. 1, as a preferred embodiment of the present invention, the deformation measuring device 300 includes a dial indicator, the dial indicator includes a probe 310, the probe 310 is disposed coaxially with the pull rod 100, and a tip of the probe 310 abuts against an inner end surface of the pull rod 100, so as to facilitate measurement of a moving distance of the blocking structure 500.
The invention also provides a detection method using the hand hole plugging quality detection structure, which comprises the following steps:
the method comprises the following steps: after the construction of the plugging structure 500 is completed and the service life is reached, one end of the pull rod 100 is fixedly connected with the plugging structure 500;
step two: after the pull rod 100 is firmly fixed with the blocking structure 500, the supporting device 200 is installed on the shield segment 400 through the pull rod 100;
step three: mounting the loading device 600 on the supporting device 200;
step four: and (3) installing the deformation measuring device 300 in the tunnel, connecting the deformation measuring device 300 with the end surface of the inner side of the pull rod 100, and starting the loading device 600 to perform quality detection on the blocking structure 500.
Preferably, in the fourth step, the pull rod 100 is loaded by the loading device 600 in multiple steps according to the load capacity to be achieved by the plugging structure 500, the deformation value of the pull rod 100 is recorded at certain time intervals under the same-level load, and the next loading can be performed when the deformation value of the pull rod 100 is smaller than a certain value twice in succession.
Preferably, the loading force of the plugging structure 500, which is one third of the loading force in each step, is divided into three steps, the deformation value of the pull rod 100 is recorded every 5 minutes under the same-level loading, and the next loading can be performed when the deformation value of the pull rod 100 is less than 1mm twice in succession.
Preferably, in step four, when the loading force of the loading device 600 reaches the design bearing capacity of the blocking structure 500, lasting for 30 minutes, when the deformation value of the pull rod 100 is less than 1mm, the mass of the blocking structure 500 meets the design requirement, otherwise, the design requirement is not met.
In the description herein, references to "an example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope of the claims of the present application.
Claims (10)
1. The utility model provides a hand hole shutoff quality detection structure which characterized in that: including pull rod, strutting arrangement, loading device, deformation measuring device, establish the shield at the tunnel interior week shield section of jurisdiction and be used for the shutoff the block structure in shield section of jurisdiction hand hole, strutting arrangement installs the inboard of shield section of jurisdiction, strutting arrangement is last be equipped with the through-hole that block structure corresponds, loading device installs strutting arrangement's inboard is used for to the pulling force is applyed to the pull rod, the one end of pull rod with block structure links to each other, and the other end passes through the through-hole passes strutting arrangement with deformation measuring device links to each other, deformation measuring device is used for the record the deformation of length direction is followed to the pull rod.
2. The hand hole plugging quality detection structure according to claim 1, wherein: the pull rod is provided with a connecting portion at one end connected with the blocking structure, and viscose is arranged in front of the connecting portion and the blocking structure.
3. The hand hole plugging quality detection structure according to claim 1, wherein: the supporting device comprises a supporting seat and supporting legs, the supporting legs are located between the supporting seat and the shield segments, the supporting legs are arranged on the periphery of the supporting seat, and the through hole is located at the central position of the supporting seat.
4. The hand hole plugging quality detection structure according to claim 1, wherein: the loading device comprises a center-penetrating jack, the center-penetrating jack is sleeved on the periphery of the pull rod, a fixing part is arranged between the center-penetrating jack and the pull rod, and the fixing part is located at one end, close to the inner side of the tunnel, of the center-penetrating jack.
5. The hand hole plugging quality detection structure according to claim 4, wherein: the fixing part is a wedge-shaped block.
6. The hand hole plugging quality detection structure according to claim 1, wherein: the deformation measuring device comprises a dial indicator, the dial indicator comprises a probe, the probe and the pull rod are coaxially arranged, and the tip end of the probe is abutted to the end face of the inner side of the pull rod.
7. A method of testing using the hand hole plugging quality testing structure of claim 1, comprising the steps of:
the method comprises the following steps: fixedly connecting one end of the pull rod with the blocking structure;
step two: mounting the support device on the shield segment through the pull rod;
step three: mounting the loading device on the support device;
step four: and installing the deformation measuring device in the tunnel, connecting the deformation measuring device with the end surface of the inner side of the pull rod, and starting the loading device to carry out quality detection on the plugging structure.
8. The detection method of the hand hole plugging quality detection structure according to claim 7, characterized in that: in the fourth step, the pull rod is loaded in multiple steps through the loading device according to the bearing capacity to be achieved by the plugging structure, the deformation value of the pull rod is recorded once at a certain time interval under the action of the same-level load, and the next loading can be carried out when the deformation value of the pull rod is less than a certain numerical value continuously twice.
9. The detection method of the hand hole plugging quality detection structure according to claim 8, characterized in that: the force loaded in each step is one third of the bearing capacity to be achieved by the plugging structure.
10. The detection method of the hand hole plugging quality detection structure according to claim 7, characterized in that: in the fourth step, when the loading force of the loading device reaches the design bearing capacity of the blocking structure, the duration is 30 minutes, when the deformation value of the pull rod is less than 1mm, the quality of the blocking structure meets the design requirement, otherwise, the design requirement is not met.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211116037.1A CN115452344A (en) | 2022-09-14 | 2022-09-14 | Hand hole plugging quality detection structure and detection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211116037.1A CN115452344A (en) | 2022-09-14 | 2022-09-14 | Hand hole plugging quality detection structure and detection method |
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| CN202211116037.1A Pending CN115452344A (en) | 2022-09-14 | 2022-09-14 | Hand hole plugging quality detection structure and detection method |
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