CN112730806A - Liquidity index detection device and method based on rock core penetration - Google Patents
Liquidity index detection device and method based on rock core penetration Download PDFInfo
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- CN112730806A CN112730806A CN202011530682.9A CN202011530682A CN112730806A CN 112730806 A CN112730806 A CN 112730806A CN 202011530682 A CN202011530682 A CN 202011530682A CN 112730806 A CN112730806 A CN 112730806A
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- 230000035515 penetration Effects 0.000 title claims abstract description 82
- 239000011435 rock Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 title claims abstract description 16
- 239000002689 soil Substances 0.000 claims abstract description 80
- 238000005553 drilling Methods 0.000 claims abstract description 40
- 238000004891 communication Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 238000011158 quantitative evaluation Methods 0.000 abstract description 5
- 239000007787 solid Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000012792 core layer Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000588769 Proteus <enterobacteria> Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention discloses a liquidity index detection device and method based on core penetration, which comprises the following steps: the acquisition device is used for acquiring the core penetration of the measured core; the logging instrument is used for forming an electronic tag of the measured rock core according to the drilling depth, the drilling position and the drilling number of the measured rock core and sending the rock core penetration degree and the electronic tag of the measured rock core to the server; and the server matches the soil sample type and the soil sample position in the liquidity index comparison database according to the electronic tag of the measured core to obtain the soil sample liquidity index corresponding to the current core penetration degree, and determines the soil sample state. The core penetration data of the measured core is collected on site, the soil sample type and position corresponding to the current core penetration data are matched according to the liquidity comparison database, and the corresponding soil sample liquidity index is obtained, so that the soft and hard states of the soil sample are determined, and the quantitative evaluation of the soil sample state is realized by accurately collecting the core penetration data.
Description
Technical Field
The invention relates to the technical field of engineering geological drilling machinery, in particular to a liquidity index detection device and method based on core penetration.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The liquidity index, also called a consistency index, is an index representing the relative relation between the natural water content and the limit water content, and is an index for judging the soft and hard state of the cohesive soil, the liquidity index of the soil in a soil-plastic state is between 0 and 1, and the larger the liquidity index is, the softer the soil is; the soil with the liquidity index larger than 1 is in a flowing state; soil less than 0 is in a solid or semi-solid state, and can be classified into flowing, soft-plastic, hard-plastic and hard states according to liquidity index. In engineering geological exploration, repeated core drilling is generally adopted, a soil sample liquidity index is measured according to a geotechnical test carried out indoors by a taken core sample, so that a soil sample state is obtained, and the compiling and recording work is completed.
In the identification of the field rock core in geotechnical engineering investigation, a rubbing method is mainly adopted, and the soft and hard states of cohesive soil are judged by combining the drilling footage speed, but the inventor finds that the method is influenced by the rock core placing time, the temperature, subjective factors of geological personnel working experience and the like, and the plastic state judged by indoor tests of the undisturbed soil sample at the same layer is larger. Secondly, the whole editing and recording process is complicated and complex, a large amount of manual energy is consumed, the quality and accuracy of the editing and recording process depend on the professional level of an operator, careless mistakes are easy to occur, reported information cannot be fed back in time, and the instantaneity is poor; after coring on site, most core samples are only described, other detection works are not performed, the core samples mostly stay in a subjective qualitative description stage, and the accuracy of editing and recording work cannot be guaranteed.
Disclosure of Invention
In order to solve the problems, the invention provides a liquid index detection device and method based on core penetration, which are used for acquiring the core penetration data of a measured core on site, matching the type and position of a soil sample corresponding to the current core penetration data according to a liquid comparison database to obtain a corresponding soil sample liquid index, so as to determine the soft and hard states of the soil sample, and realizing quantitative evaluation on the soil sample state by accurately acquiring the core penetration data.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a core penetration based liquidity index detection apparatus, comprising: the system comprises a collecting device, a recording instrument and a server;
the acquisition device is used for acquiring the core penetration of the measured core;
the cataloging instrument is used for forming an electronic tag of the measured rock core according to the drilling depth, the drilling position and the drilling number of the measured rock core and sending the rock core penetration degree and the electronic tag of the measured rock core to the server;
and the server matches the soil sample type and the soil sample position in the liquidity index comparison database according to the electronic tag of the measured core to obtain the soil sample liquidity index corresponding to the current core penetration degree, and determines the soil sample state.
In a second aspect, the invention provides a method for detecting liquidity index based on core penetration, which comprises the following steps:
obtaining the core penetration degree and an electronic tag of a measured core, wherein the electronic tag comprises the drilling depth, the drilling position and the drilling number of the measured core;
and matching the soil sample type and the soil sample position in the liquidity index comparison database according to the electronic tag of the measured core to obtain the soil sample liquidity index corresponding to the current core penetration degree, and determining the soil sample state.
Compared with the prior art, the invention has the beneficial effects that:
the liquid index detection device based on the core penetration has the functions of synchronously assisting in recording GPS information of an instrument, synchronously numbering drill holes, connecting a cloud server and uploading data, and can generate core penetration data of a three-dimensional electronic tag comprising a plane position and a depth, so that the complexity of field operation and data reporting is simplified.
After the core penetration data is transmitted to the server, the core penetration data is matched with data such as classification and position of other soil according to the three-dimensional electronic tag, and liquidity indexes of various types of soil are automatically judged according to penetration resistance and liquidity index comparison databases of different areas and different types of soil, so that quantitative evaluation is provided for the state of the soil, quantitative evaluation on basic bearing capacity of the different types of soil through penetration can be realized, and the problems of subjectivity and limitation in the existing method are solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic diagram of an implementation method of a core penetration-based liquidity index detection device provided in embodiment 1 of the present invention;
fig. 2 is a schematic view of an overall structure of a core penetration-based liquid index detection apparatus according to embodiment 2 of the present invention;
wherein, 1, a penetrometer; 2. an editing and recording instrument; 3. a three-dimensional electronic tag; 4. a server; 5. core penetration data; 6. a soil naming system; 7. a penetration degree related engineering geological standard and local experience database; 8. a liquidity index; 9. a base load capacity; 10. the state of the soil; 11. and (5) geological record table.
The specific implementation mode is as follows:
the invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and it should be understood that the terms "comprises" and "comprising", and any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
Example 1
The embodiment provides a liquidity index detection device based on core penetration, including: the system comprises a collecting device, a recording instrument and a server; specifically, as shown in fig. 1;
the acquisition device is used for acquiring the core penetration of the measured core;
the cataloging instrument is used for forming an electronic tag of the measured rock core according to the drilling depth, the drilling position and the drilling number of the measured rock core and sending the rock core penetration degree and the electronic tag of the measured rock core to the server;
and the server matches the soil sample type and the soil sample position in the liquidity index comparison database according to the electronic tag of the measured core to obtain the soil sample liquidity index corresponding to the current core penetration degree, and determines the soil sample state.
In this embodiment, the acquisition device is connected with the recording instrument through a bluetooth module; the cataloging instrument is connected with the server through the communication module.
In this embodiment, collection system includes penetrometer and control module, penetrometer gathers the core penetration of surveyed core, and the penetration is when hitting the penetrometer with gravity in the foundation soil, the degree of depth in the penetrometer entry soil.
Preferably, the tested rock core of the drilling site is layered, a striking point, namely a striking point of a penetrometer striking the tested rock core, is selected in each layer of rock core layer, the drilling depth is marked,
preferably, aligning a penetrometer to the measured point, pressurizing and vertically penetrating into soil, namely, the penetrometer is vertical to the rock surface where the striking point of the measured rock core is located, and vertically striking;
it will be appreciated that to improve the accuracy of the data, a plurality of points are taken as a set of data and an average is calculated.
It can be understood that the drilling depth of the striking point is manually input and can be obtained from the actual drilling depth according to the drilling process.
In this embodiment, through the penetrometer measuring rock core penetration of rock core layer hitting point to with rock core penetration data transmission to control module, send to the record appearance through bluetooth module by control module, record appearance storage after receiving rock core penetration data, and transmit to the server through communication module.
Preferably, the penetrometer is further provided with a counter, the counter collects the times of hitting the measured rock core by the penetrometer, the depth of the penetration body in the soil is generally obtained after 10 hits, the penetration degree is obtained, and the hardness degree of the soil is judged;
it is understood that the counter may be an existing counter capable of implementing the same function, such as an OHR-B300 series counter, and the specific model is not limited herein.
Preferably, the control module further controls the penetrometer to collect the core penetration data in the collection interval through a preset collection interval by a timer, for example, the penetrometer is set to collect the core penetration data every second.
Preferably, the acquisition device further comprises an indication module, and the control module is connected with the indication module;
preferably, the indicating module adopts an LED indicating lamp;
it can be understood that the LED indicator light is used for displaying that the acquisition device is in the working state.
Preferably, the acquisition device comprises a first display device, and the control module is connected with the first display device;
it can be understood that first display device adopts display screen etc. and the core penetration data transmission who will the penetrometer gather by control module to the display screen for the core penetration data that show the collection.
In this embodiment, the collection module passes through bluetooth module and is connected with the record appearance, and the core penetration data transmission who passes through bluetooth module by control module will gather is to record the appearance.
Preferably, the penetrometer is a Proteus penetrometer.
In this embodiment, the control module preferably uses an STM32 single chip or an MCS51 single chip, and the like, which is not limited herein.
In this embodiment, the catalog instrument is a terminal device, and is connected with the penetrometer through a bluetooth module;
in this embodiment, the logging instrument further includes a GPS module, which acquires a current drilling position, assists in positioning a survey site borehole, and automatically acquires logged space coordinates and time information during logging information;
the logging instrument generates a rock core sample including a three-dimensional electronic tag containing a plane position and a depth according to the drilling position, the drilling depth and the drilling number, stores the rock core penetration degree and the three-dimensional electronic tag of the rock core penetration degree into the logging instrument, and uploads penetration degree data and the three-dimensional electronic tag of the rock core penetration degree to the server through the communication module.
Preferably, the logging instrument further comprises a second display device, and as can be appreciated, the second display device adopts an LCD display screen or the like to display data such as the current drilling position, the acquired core penetration data, the current drilling depth and the like.
Preferably, the recorder also comprises a camera, and the camera can photograph the drilling site and record the situation of the exploration site in real time.
In this embodiment, the communication module is a wireless network communication module;
preferably, the wireless network communication adopts a GPRS network; in remote areas without GPRS network signals, the recorder uploads sample information to the server when waiting for GPRS network signals.
In this embodiment, the server stores the received data such as the core penetration data and the three-dimensional electronic tag in a unified manner;
in the server, matching with the types and positions of other soil samples in the server according to the three-dimensional electronic tag of the measured rock core to obtain the type and position of the soil sample corresponding to the measured rock core;
and according to the comparison relation between the core penetration degrees and the liquidity indexes of the soil samples at different positions and different types in the liquidity index comparison database, obtaining the soil sample liquidity index corresponding to the core penetration degree of the measured core, thereby carrying out quality evaluation on the state of the soil sample and synchronizing the state of the soil sample to a geological record table.
The state of the soil sample is related to liquidity indexes, the liquidity indexes refer to the soft and hard states of the soil, the liquidity indexes of the soil in the soil-plastic state are between 0 and 1, and the larger the liquidity index is, the softer the soil is; the soil with the liquidity index larger than 1 is in a flowing state; soil smaller than 0 is in a solid state or a semi-solid state, and can be divided into flowing, soft-plastic, hard-plastic and the like according to the numerical value.
Example 2
The embodiment provides a liquidity index detection method based on core penetration, which comprises the steps of obtaining the core penetration of a measured core and an electronic tag, wherein the electronic tag comprises the drilling depth, the drilling position and the drilling number of the measured core; and matching the soil sample type and the soil sample position in the liquidity index comparison database according to the electronic tag of the measured core to obtain the soil sample liquidity index corresponding to the current core penetration degree, and determining the soil sample state.
As shown in fig. 2, the embodiment is implemented by communication connection between the penetrometer, the cataloging instrument and the server, and the specific functional implementation flow is as follows:
(1) logging in a recorder and entering a project management system;
(2) starting the penetrometer, and connecting the recorder through Bluetooth;
(3) the penetrometer transmits the core penetration data to the recorder, and the recorder generates a three-dimensional electronic tag of the core penetration of the core soil sample according to the GPS, the drilling number and the drilling depth after receiving the data;
(4) storing the core penetration data of the core soil sample and the three-dimensional electronic tag into a recorder and uploading the data to a server;
(5) matching with soil sample data of other types and positions of the server according to the three-dimensional electronic tag;
preferably, the server also stores core penetration data, a soil naming system, a penetration-related engineering geological standard and a local experience database;
(6) the penetration resistance and the liquidity index of different types of soil at different positions are combined to contrast a database, the liquidity index of each type of soil is automatically judged, the state of the soil is determined, and the soil is synchronized to a geological record table;
(7) and (4) comparing the penetration resistance and the basic bearing capacity of different positions and different types of soil with a database, automatically judging the basic bearing capacity of various types of soil, and synchronizing the basic bearing capacity to a geological record table.
The method is also suitable for quantitative evaluation of basic bearing capacity of different types of soil through penetration, in the embodiment, after a physical core is obtained by drilling, an effective detection means is adopted to detect and record index parameters of the physical core on site, and in a detection link, various different instruments are integrated to form an integrated auxiliary recorder, so that the operation steps are simplified, and the intelligent and informatization level is improved.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. A liquidity index detection device based on core penetration is characterized by comprising: the system comprises a collecting device, a recording instrument and a server;
the acquisition device is used for acquiring the core penetration of the measured core;
the cataloging instrument is used for forming an electronic tag of the measured rock core according to the drilling depth, the drilling position and the drilling number of the measured rock core and sending the rock core penetration degree and the electronic tag of the measured rock core to the server;
and the server matches the soil sample type and the soil sample position in the liquidity index comparison database according to the electronic tag of the measured core to obtain the soil sample liquidity index corresponding to the current core penetration degree, and determines the soil sample state.
2. The device for detecting the liquid index based on the rock core penetration degree of claim 1, wherein the collecting device comprises a penetrometer and a control module, the penetrometer collects the rock core penetration degree of the rock core to be detected, transmits the rock core penetration degree to the control module, and transmits the rock core penetration degree to the recorder through a Bluetooth module.
3. The apparatus of claim 2, wherein the control module presets penetrometer collection intervals via a timer.
4. The device for detecting the liquid index based on the penetration degree of the rock core as claimed in claim 2, wherein a counter is arranged on the penetrometer, and the counter collects the times of hitting the measured rock core by the penetrometer.
5. The apparatus for detecting liquidity index of rock core penetration according to claim 2, wherein the penetrometer is perpendicular to the rock surface of the rock core to be detected and strikes perpendicularly.
6. The apparatus for detecting liquidity index of rock core penetration as claimed in claim 1, wherein the tested rock core is layered, and a hitting point is provided in each layer of rock core.
7. The apparatus according to claim 1, wherein the logging device is a terminal device, and the logging device comprises a GPS module for acquiring a current drilling position.
8. The core penetration-based liquid index detection device of claim 1, wherein the collection device is connected with an editor through a Bluetooth module, and the editor is connected with a server through a communication module.
9. The apparatus for detecting liquidity index based on core penetration of claim 8, wherein the communication module is a wireless network communication module.
10. A method for detecting liquidity index based on core penetration is characterized by comprising the following steps:
obtaining the core penetration degree and an electronic tag of a measured core, wherein the electronic tag comprises the drilling depth, the drilling position and the drilling number of the measured core;
and matching the soil sample type and the soil sample position in the liquidity index comparison database according to the electronic tag of the measured core to obtain the soil sample liquidity index corresponding to the current core penetration degree, and determining the soil sample state.
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| CN202011530682.9A CN112730806A (en) | 2020-12-22 | 2020-12-22 | Liquidity index detection device and method based on rock core penetration |
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| CN202011530682.9A CN112730806A (en) | 2020-12-22 | 2020-12-22 | Liquidity index detection device and method based on rock core penetration |
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