CN113624480B - Synchronous group anchor test system - Google Patents
Synchronous group anchor test system Download PDFInfo
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- CN113624480B CN113624480B CN202110993531.5A CN202110993531A CN113624480B CN 113624480 B CN113624480 B CN 113624480B CN 202110993531 A CN202110993531 A CN 202110993531A CN 113624480 B CN113624480 B CN 113624480B
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- 238000012360 testing method Methods 0.000 title claims abstract description 70
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 24
- 238000012545 processing Methods 0.000 claims abstract description 38
- 238000004873 anchoring Methods 0.000 claims abstract description 34
- 238000004891 communication Methods 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims description 16
- 230000003993 interaction Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 14
- 238000010276 construction Methods 0.000 abstract description 8
- 238000011065 in-situ storage Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 2
- 238000000275 quality assurance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention provides a synchronous group anchor test system which comprises a test loading module, a data acquisition module, a data processing module and a control module; the test loading module is used for loading a single anchor rod or a plurality of anchor rods simultaneously, the data acquisition module is arranged on the test loading module and is used for acquiring the anchoring parameters of the anchor rods in a setting range and/or the anchoring parameters of the anchored anchor rods in adjacent positions of the anchor rods which are being anchored, the output end of the data acquisition module is connected with the data processing module, the data processing module is used for processing the parameters acquired by the data acquisition module, the data processing module is in communication connection with the control module and is used for sending the processed anchoring parameters to the control module, and the control module is used for judging whether the received anchoring parameters meet the threshold range of the anchoring parameters. The synchronous group anchor test system realizes in-situ test of group anchor prestress loss in a construction site, and constructors can directly know the influence of the group anchor effect in specific engineering.
Description
Technical Field
The invention relates to the field of anchoring engineering, in particular to a synchronous group anchor test system.
Background
In anchoring engineering, rock and soil anchors usually appear in a group form, if the arrangement space of the anchors is too close, the overlap of the stressed areas in the stratum can cause stress superposition and additional displacement of the anchors, so as to reduce the effective exertion of the ultimate pullout resistance of the anchors, and the phenomenon is usually called a group anchor effect, and the influence of the group anchor effect is related to factors such as the space of anchors, the diameter of the anchors, the length of the anchors and the characteristics of the stratum. Because the mechanism of the rock-soil anchoring effect is complex, the group anchoring effect influencing factors are complex and various, related theories and methods are not mature, and how to reasonably predict the group anchoring effect and apply the group anchoring effect to engineering practice has become a long-standing problem in the engineering world.
At present, in the aspect of design, the influence of the group anchor effect is often considered by improving the safety coefficient, and the size of the safety coefficient is mainly selected by experience. Because of the lack of theoretical basis of group anchor effect on prestress anchor loss, in engineering construction, the anchor force loss condition in the anchor engineering cannot be accurately predicted due to the influence restriction of specific anchored body properties, anchor time, construction process, anchor materials and working environment, and when the prestress loss is overlarge, the quality and safety of the engineering are seriously threatened.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a synchronous group anchor testing system.
In order to achieve the above object of the present invention, the present invention provides a synchronous group anchor test system, which includes a test loading module, a data acquisition module, a data processing module and a control module;
the test loading module is used for loading a single anchor rod or a plurality of anchor rods simultaneously, the data acquisition module is arranged on the test loading module, the data acquisition module acquires the anchor parameters of the anchor rods in a setting range and/or the anchor parameters of the anchor rods which are anchored at adjacent positions of the anchor rods which are being anchored, the output end of the data acquisition module is connected with the data processing module, the data processing module processes the parameters acquired by the data acquisition module, the data processing module is in communication connection with the control module, the data processing module sends the processed anchor parameters to the control module, and the control module judges whether the received anchor parameters meet the threshold range of the anchor parameters.
The synchronous group anchor test system realizes in-situ test of group anchor prestress loss in a construction site, and constructors can directly know the influence of the group anchor effect in specific engineering.
The preferable scheme of the synchronous group anchor test system is that the test loading module comprises at least one loading unit, and each loading unit loads a single anchor rod.
The data acquisition module comprises a force transducer, a displacement sensor and a multichannel multi-source data acquisition instrument, wherein the force transducer and the displacement sensor are arranged on the test loading module, each force transducer and each displacement sensor are connected with the multichannel multi-source data acquisition instrument, real-time load information and displacement information of a test object are sent to the multichannel multi-source data acquisition instrument, and the output end of the multichannel multi-source data acquisition instrument is connected with the signal input end of the data processing module.
According to the preferable scheme of the synchronous group anchor test system, the multichannel multi-source data acquisition instrument is in communication connection with the test loading module, and synchronously receives the operation data of the test loading module.
The data processing module comprises a first signal processing unit which is arranged in a data acquisition instrument; the output end of the first signal processing unit is connected to the control module.
The optimal scheme of the synchronous group anchor test system is that a second signal processing unit is arranged in the test loading system, the operation data of the test loading module is input into the input end of the second signal processing unit, and the output end of the second signal processing unit is connected to the input end of the multichannel multisource data acquisition instrument.
The control module comprises a first comparator group, a second comparator group and a controller, wherein the first comparator group comprises a plurality of first comparators, and the second comparator group comprises a plurality of second comparators;
each data signal output end of the multichannel multisource data acquisition instrument is respectively connected with the positive phase end of one first comparator of the first comparator group and the negative phase end of one second comparator of the second comparator group;
the inverting terminal of the first comparator is correspondingly connected with a memory for storing the lower limit value of the threshold range of the anchoring parameter, the non-inverting terminal of the second comparator is correspondingly connected with a memory for storing the upper limit value of the threshold range of the anchoring parameter, and the output terminals of the first comparator and the second comparator are connected to the input terminal of the controller.
The preferable scheme of the synchronous group anchor test system also comprises a display module and/or a man-machine interaction module, wherein the control module is connected with the display module and displays the test result on the display module; the man-machine interaction module is connected with the control module and realizes man-machine interaction with the control module.
According to the preferable scheme of the synchronous group anchor test system, the display module, the man-machine interaction module and the control module are integrated on an intelligent terminal.
The beneficial effects of the invention are as follows: by adopting the synchronous group anchor test system to develop the group anchor prestress loss in-situ test on site, constructors can intuitively know the influence of the group anchor effect on the prestress loss in specific engineering, and the constructors can reasonably define influence factors, so that objective basis is provided for optimization of design, construction, test and acceptance links, and the requirements of safety, applicability, economy and rationality and quality assurance in design and construction are met.
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 foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a functional block diagram of a synchronous group anchor test system.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.
As shown in fig. 1, the invention provides a synchronous group anchor test system which is used for testing the group anchor effect in the rock-soil anchoring engineering, and the influence of the group anchor effect on the prestress loss in the specific engineering is evaluated by carrying out the group anchor prestress loss in-situ test on site. The system comprises a test loading module, a data acquisition module, a data processing module and a control module.
The test loading module is used for loading a single anchor rod or a plurality of anchor rods simultaneously. The test loading module comprises at least one loading unit, and each loading unit loads a single anchor rod. The loading unit comprises a hydraulic power source, a jack, a counterforce device, a matched anchor clamp and a loading control unit, and the loading control unit can be shared by a plurality of loading units.
The test loading module is provided with a data acquisition module, and the data acquisition module is specifically arranged on each loading unit in actual operation. The data acquisition module acquires the anchoring parameters of the anchor rod within the setting range and/or the anchoring parameters of the anchored anchor rod at the adjacent position of the anchor rod under anchoring.
In this embodiment, the data acquisition module includes a force transducer, a displacement sensor and a multi-channel multi-source data acquisition instrument, where the force transducer and the displacement sensor are disposed on each loading unit of the test loading module and used for acquiring load information and displacement information in the loading process, and the force transducer and the displacement sensor are disposed at specific positions of the test loading module by adopting positions conventionally set by those skilled in the art. Each force transducer and each displacement transducer are connected with the multichannel multisource data acquisition instrument, real-time load information and displacement information of a test object are sent to the multichannel multisource data acquisition instrument, and the output end of the multichannel multisource data acquisition instrument is connected with the signal input end of the data processing module.
The data processing module processes the parameters acquired by the data acquisition module and mainly comprises filtering, denoising and the like, the data processing module is in communication connection with the control module and sends processed anchoring parameters to the control module, and the control module judges whether the received anchoring parameters meet the threshold range of the anchoring parameters.
Specifically, the control module includes a first comparator set, a second comparator set, and a controller, where the first comparator set includes a plurality of first comparators, and the second comparator set includes a plurality of second comparators.
Each data signal output end of the multichannel multisource data acquisition instrument is respectively connected with the positive phase end of one first comparator of the first comparator group and the negative phase end of one second comparator of the second comparator group.
The inverting terminal of the first comparator is correspondingly connected with a memory for storing the lower limit value of the threshold range of the anchoring parameter, the non-inverting terminal of the second comparator is correspondingly connected with a memory for storing the upper limit value of the threshold range of the anchoring parameter, and the output terminals of the first comparator and the second comparator are connected to the input terminal of the controller. When the acquired anchoring parameter is lower than the lower limit value of the threshold range of the anchoring parameter, the first comparator outputs a low level to the controller; and when the acquired anchoring parameter is higher than the upper limit value of the threshold range of the anchoring parameter, the second comparator outputs a low level to the controller. The anchoring parameters may be load information or displacement information.
In this embodiment, the apparatus may further include a display module and/or a man-machine interaction module, where the control module is connected to the display module, and displays the test result on the display module. The man-machine interaction module is connected with the control module and realizes man-machine interaction with the control module. Preferably, the display module, the man-machine interaction module and the control module can be integrated on an intelligent terminal. The data processing module comprises a first signal processing unit which is arranged in the data acquisition instrument; the output end of the first signal processing unit is connected to the control module.
By adopting the synchronous group anchor test system to develop the group anchor prestress loss in-situ test on site, the tester can intuitively understand the influence of the group anchor effect in specific engineering, and can reasonably define the influence factors, thereby providing objective basis for the optimization of the design, construction, test and acceptance links, and meeting the requirements of safety, applicability, economy, rationality and quality assurance in the design and construction.
In the preferred scheme of the embodiment, the multichannel multisource data acquisition instrument is also in communication connection with the test loading module and synchronously receives the operation data of the test loading module so as to synchronously observe, analyze and control the test process. Specifically, a second signal processing unit is built in the test loading system, the operation data of the test loading module is input into the input end of the second signal processing unit, and the output end of the second signal processing unit is connected to the input end of the multichannel multi-source data acquisition instrument. The operation data of the test loading module synchronously received by the multi-channel multi-source data acquisition instrument can also be displayed on the display module.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. The synchronous group anchor test system is characterized by comprising a test loading module, a data acquisition module, a data processing module and a control module;
the test loading module is used for loading a single anchor rod or a plurality of anchor rods simultaneously, the test loading module comprises at least one loading unit, each loading unit loads the single anchor rod, each loading unit is provided with the data acquisition module, the data acquisition module acquires the anchoring parameters of the anchor rod in a setting range and the anchoring parameters of the anchored anchor rod at the adjacent position of the anchor rod which is being anchored, the output end of the data acquisition module is connected with the data processing module,
specifically, the data acquisition module comprises a force transducer, a displacement sensor and a multi-channel multi-source data acquisition instrument, wherein the force transducer and the displacement sensor are arranged on the test loading module, each force transducer and each displacement sensor are connected with the multi-channel multi-source data acquisition instrument, real-time load information and displacement information of a test object are sent to the multi-channel multi-source data acquisition instrument, and the output end of the multi-channel multi-source data acquisition instrument is connected with the signal input end of the data processing module;
the data processing module processes the parameters acquired by the data acquisition module, the data processing module is in communication connection with the control module, the processed anchoring parameters are sent to the control module, and the control module judges whether the received anchoring parameters meet the threshold range of the anchoring parameters.
2. The synchronized group anchor testing system of claim 1, wherein the multi-channel multi-source data acquisition instrument is communicatively coupled to the test loading module for synchronously receiving the operational data of the test loading module.
3. The synchronized group anchor test system of claim 1, wherein the data processing module includes a first signal processing unit built into the data acquisition instrument; the output end of the first signal processing unit is connected to the control module.
4. The synchronous group anchor test system according to claim 2, wherein a second signal processing unit is built in the test loading system, the operation data of the test loading module is input into the input end of the second signal processing unit, and the output end of the second signal processing unit is connected to the input end of the multichannel multi-source data acquisition instrument.
5. The synchronous group anchor testing system of claim 1, wherein the control module comprises a first comparator set comprising a plurality of first comparators, a second comparator set comprising a plurality of second comparators, and a controller;
each data signal output end of the multichannel multisource data acquisition instrument is respectively connected with the positive phase end of one first comparator of the first comparator group and the negative phase end of one second comparator of the second comparator group;
the inverting terminal of the first comparator is correspondingly connected with a memory for storing the lower limit value of the threshold range of the anchoring parameter, the non-inverting terminal of the second comparator is correspondingly connected with a memory for storing the upper limit value of the threshold range of the anchoring parameter, and the output terminals of the first comparator and the second comparator are connected to the input terminal of the controller.
6. The synchronous group anchor test system according to claim 1, further comprising a display module and/or a man-machine interaction module, wherein the control module is connected with the display module, and the test result is displayed on the display module; the man-machine interaction module is connected with the control module and realizes man-machine interaction with the control module.
7. The synchronized mass anchor test system of claim 6, wherein the display module, the man-machine interaction module, and the control module are integrated on an intelligent terminal.
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