CN104535461B - Method for monitoring diffusion process of cement grouting fluid in sand gravel layer - Google Patents
Method for monitoring diffusion process of cement grouting fluid in sand gravel layer Download PDFInfo
- Publication number
- CN104535461B CN104535461B CN201510009248.9A CN201510009248A CN104535461B CN 104535461 B CN104535461 B CN 104535461B CN 201510009248 A CN201510009248 A CN 201510009248A CN 104535461 B CN104535461 B CN 104535461B
- Authority
- CN
- China
- Prior art keywords
- temperature
- grouting
- diffusion
- monitoring
- gravel layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004568 cement Substances 0.000 title claims abstract description 81
- 238000009792 diffusion process Methods 0.000 title claims abstract description 63
- 238000012544 monitoring process Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 40
- 239000004576 sand Substances 0.000 title claims abstract description 40
- 239000012530 fluid Substances 0.000 title abstract 3
- 238000012545 processing Methods 0.000 claims abstract description 20
- 239000002002 slurry Substances 0.000 claims description 73
- 238000012360 testing method Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000011440 grout Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 3
- 238000013480 data collection Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 abstract description 8
- 238000011160 research Methods 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a method for monitoring the diffusion process of cement grouting fluid in a sand gravel layer. The device for monitoring the diffusion process of the cement grouting fluid in the sand gravel layer comprises a sand gravel layer cement grouting system, temperature sensors, a data acquisition module and a data processing and analyzing module. According to the method, the diffusion process of cement paste can be monitored by high-temperature cement paste and the embedded temperature sensors, the diffusion process of the cement paste in the sand gravel layer can be monitored, hence, the diffusion mechanism can be studied conveniently, and support is provided for studying grouting theories.
Description
Technical Field
The invention relates to a monitoring method, in particular to a monitoring method for a diffusion process of cement grouting slurry in a sand gravel layer.
Background
The gravel layer is widely distributed in China and is a common complex foundation in engineering, grouting is used as a common anti-seepage reinforcing means and is widely applied to engineering, but the grouting theory is seriously lagged in the gravel layer foundation, the process cannot be effectively controlled, the effect cannot be reliably guaranteed, and the application of grouting is limited. Along with the increasing attention paid to the ground of a gravel layer, the requirement of a grouting theory is more and more urgent, the grouting theory becomes a main factor for limiting the further development of a grouting technology at present, the most important factor is that the diffusion mechanism of slurry is not sufficiently recognized, an effective monitoring method or a testing means is not available, the main factor for causing the reason is the shortage, the grouting theory deduced by means of hydrodynamics and solid mechanics cannot be effectively verified, meanwhile, indoor tests are all the analysis of a formed stone body after grouting is completed, the obtained empirical formulas are all empirical formulas, only qualitative recognition can be obtained through the arrangement and analysis of the conclusions, and the recognition of the diffusion process and the diffusion mechanism of slurry is still lacking; the field test is limited by conditions, most of the field tests are not carried out in the slurry diffusion range, and the results are discrete due to the fact that the geological conditions are more complex after partial excavation, damage is caused during excavation and the like. If the diffusion mechanism of the cement grouting slurry of the sand gravel foundation is more comprehensively known, the diffusion process of grouting must be monitored, the time-course characteristics of diffusion of different slurries under certain pressure are known, and a large number of tests are carried out. None of the existing methods meets this requirement, such as Yangpen, crepe, etc. indoor tests. In addition, patent No. 200610021638.9 of the patent of the general engineering university also mentions a method for testing the diffusion process of cement slurry, but the method is used for grouting cracks of rock mass, and is an intuitive and visible method, and the method cannot be used for grouting sand gravel stratum because sand gravel and cracks are different in nature and cannot be directly observed, and the grouting characteristics are different.
Aiming at the situation, the invention provides a method for monitoring the diffusion process of cement paste by using high-temperature cement paste and a pre-embedded temperature sensor. According to the existing research, the characteristics of cement paste have certain differences at different temperatures, the main concerned indexes in grouting comprise apparent viscosity, fluidity and setting time, the numerical values of the parameters of high-temperature grout and conventional cement paste are different, when the parameters are used as a deterministic physical quantity and a deterministic physical numerical value, the understanding of the grout diffusion rule is not influenced, the research results can also be applied to conventional cement grouting, and the difference is only the change of the numerical value, so that the diffusion process monitoring of the cement paste in a gravel layer can be realized, the diffusion mechanism of the cement paste can be further researched, and the support is provided for the research of the grouting theory.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a method for monitoring the diffusion process of cement slurry in a gravel layer, which monitors the diffusion process of the cement slurry by using high-temperature cement slurry and a pre-embedded temperature sensor, realizes the monitoring of the diffusion process of the cement slurry in the gravel layer, is convenient for researching the diffusion mechanism of the cement slurry, and provides a support for the research of the grouting theory.
To achieve the above and other objects, the present invention provides a device for monitoring a diffusion process of a cement slurry in a gravel layer, comprising: the device at least comprises: the cement grouting system for the gravel layer comprises a grouting pipe and the gravel layer which is loaded and configured layer by layer, wherein the grouting pipe is used for grouting high-temperature cement slurry into the gravel layer; the temperature sensors are annularly arranged around the grouting pipes in the sand gravel layers; the data acquisition module is used for acquiring data of each temperature sensor; and the data processing and analyzing module is used for carrying out online or offline analysis on the data acquired by the data acquisition module and determining and analyzing the diffusion behavior of the cement paste.
Further, the sampling frequency of the data acquisition module is not less than 10 Hz.
Furthermore, the data processing and analyzing module is used for acquiring the position coordinates of each sensor, performing online or offline analysis on the data acquired by the data acquisition module, converting the electric signals into temperature signals, and judging the moment when the grout reaches the position of the sensor through a temperature sudden increase point in a temperature time curve so as to realize the process monitoring of the diffusion of the grout.
Further, the temperature sensors are uniformly arranged around the grouting hole of the grouting pipe in an annular mode.
Further, the high-temperature cement paste is prepared by hot water at 65-70 ℃.
In order to achieve the above object, the present invention also provides a method for monitoring the diffusion process of a sand gravel layer cement grout, comprising the steps of:
step one, loading sand gravel in layers, arranging temperature sensors, burying grouting pipes at set positions, and connecting each temperature sensor to a data acquisition module and a data processing and analyzing module through transmission leads;
step two, preparing high-temperature cement paste;
and step three, pouring the high-temperature cement paste into the grouting pipe, collecting data of each temperature sensor by using the data collection module, carrying out online or offline analysis on the collected data by using the data processing and analyzing module, and determining diffusion behavior of the analyzed cement paste.
Further, the first step also includes the following steps: loading and configuring sand gravel layers in a layered mode, installing a temperature sensor after the first layer is laid to reach a specified height, measuring the position of the sensor again, and then loading the sand gravel of the next layer; burying the grouting pipe at a set position; finally, grouting equipment is connected; connecting the transmission lead of each sensor to the data acquisition module and the data processing module; and inputting relevant information of each sensor, and performing acquisition test to ensure that the data acquired by each sensor is accurate.
Further, in the second step, a part of the slurry is taken and subjected to index tests of apparent viscosity, fluidity and setting time.
Further, the high-temperature cement paste is prepared by hot water at 65-70 ℃.
Further, the third step further comprises the following steps:
acquiring position coordinates of each sensor;
the data acquired by the data acquisition module is analyzed online or offline, the electric signal is converted into a temperature signal, and the time when the slurry reaches the position of the sensor is judged according to the temperature sudden increase point in the temperature time course curve;
showing the diffusion process of the slurry.
Compared with the prior art, the method for monitoring the diffusion behavior of the sand gravel cement grouting slurry realizes monitoring of the diffusion process of the cement slurry in the sand gravel layer by monitoring the diffusion process of the cement slurry by using the high-temperature cement slurry and the pre-embedded temperature sensor, is convenient for researching the diffusion mechanism of the cement slurry, and provides support for the research of the grouting theory.
Drawings
FIG. 1 is a schematic view showing the construction of a device for monitoring the diffusion process of a sand gravel layer cement slurry according to the present invention;
FIG. 2 is a schematic diagram of a temperature sensor arrangement in accordance with a preferred embodiment of the present invention;
FIG. 3 is a flow chart illustrating the steps of a method for monitoring the dispersion behavior of a sand gravel cement slurry according to the present invention;
FIG. 4 is a diagrammatic illustration of the present invention showing measured data and determining where the slurry has reached the sensor;
FIG. 5 is a flow chart of an embodiment of a method of monitoring the dispersion behavior of a sand gravel cement slurry according to the present invention.
Detailed Description
Other advantages and capabilities of the present invention will be readily apparent to those skilled in the art from the present disclosure by describing the embodiments of the present invention with specific embodiments thereof in conjunction with the accompanying drawings. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention.
The monitoring device for the diffusion process of the cement grouting slurry in the sand gravel layer adopts high-temperature cement slurry as the grouting slurry, and monitors the diffusion process of the slurry according to the temperature change of the sensors by pre-burying a plurality of temperature sensors in the sand gravel layer.
Fig. 1 is a schematic structural view of a device for monitoring a diffusion process of a sand gravel layer cement slurry according to the present invention. The system comprises a gravel layer cement grouting system 1, a temperature sensor 3, a data acquisition module 5 and a data processing and analyzing module 6.
The gravel layer cement grouting system 1 comprises a grouting pipe 2 and a gravel layer which is loaded in a layered mode, wherein the grouting pipe is used for grouting high-temperature cement slurry into the gravel layer; the grouting pipe 2 is buried at a set position, and high-temperature cement slurry (about 60 ℃) is adopted as grouting slurry to pour the high-temperature cement slurry into the gravel layer; the temperature sensors 3 are uniformly arranged around the grouting pipes 2 in each layer of the gravel layer in an annular manner, each temperature sensor 3 is connected with the data acquisition module 5 through the transmission lead 4, and the arrangement of the transmission lead 4 is considered when each temperature sensor 3 is arranged so as to reduce the interference to grouting; the data acquisition module 5 is used for acquiring temperature signals and related information of each temperature sensor 3 and transmitting the temperature signals and the related information to the data processing and analyzing module 6, in a preferred embodiment of the invention, the data acquisition module 5 adopts a multi-channel data acquisition device, and the sampling frequency of the multi-channel data acquisition device is not less than 10 Hz; the data processing and analyzing module 6 performs online or offline analysis on the data acquired by the data acquisition module 5, measures and analyzes the diffusion behavior of the cement slurry, and specifically, the data processing and analyzing module 6 acquires the position coordinates of each sensor; the data acquired by the data acquisition module 5 is analyzed online or offline, the electric signal is converted into a temperature signal, and the moment when the slurry reaches the position of the sensor is judged through the temperature sudden increase point in the temperature time course curve, so that the process monitoring of slurry diffusion is realized, and the diffusion process of the slurry is displayed online (or historically).
FIG. 2 is a schematic diagram of the arrangement of temperature sensors in the preferred embodiment of the present invention. The invention will be further illustrated by means of a specific example. In the embodiment of the invention, when testing the indoor sand gravel layer, sand gravel should be loaded in layers, the temperature sensors 3 are uniformly arranged around the grouting pipe 2 in an annular shape (the dotted circle in fig. 2 represents the annular arrangement of the temperature sensors), the positions of the arrangement points are determined, and after one layer is arranged, the next layer of sand gravel device and the temperature sensors 3 are arranged, as shown in fig. 2. The arrangement of the transmission leads 4 is considered when the sand gravel stratum is loaded in a layered mode and the temperature sensors 3 are arranged, so that the interference on grouting is reduced, and the operation is carried out in a mode of dispersing firstly and then concentrating; the volume of the temperature sensor 3 is required to be as small as possible, and the temperature sensor has the characteristics of water resistance and wear resistance; the data acquisition module 5 is a multi-channel data acquisition unit and is used for acquiring relevant information and signals of each temperature sensor; the data processing and analyzing module 6 includes: acquiring the position coordinates of each temperature sensor, carrying out online or offline analysis on the data acquired by the data acquisition module 5, converting the acquired electric signals into temperature signals, and judging whether the slurry reaches the position of the sensor or not through the mutation point of the temperature time course curve; the diffusion process of the slurry is shown on-line (or historically).
Before monitoring work is carried out, characteristic parameters of the cement paste at high temperature (generally 60 ℃) such as apparent viscosity, fluidity, setting time and the like need to be measured.
FIG. 3 is a flow chart illustrating the steps of a method for monitoring the dispersion behavior of a sand gravel cement slurry according to the present invention. As shown in fig. 3, the method for monitoring the dispersion behavior of sand gravel cement grouting slurry comprises the following steps:
301, loading sand gravel in layers, arranging temperature sensors, burying grouting pipes at set positions, and connecting the temperature sensors to a data acquisition module and a data processing and analyzing module through transmission leads. The temperature sensors of all layers are annularly and uniformly arranged around the grouting hole of the grouting pipe 2.
Step 302, preparing high-temperature cement slurry. The method comprises the steps of preparing cement paste by using hot water, selecting the water temperature to be about 65-70 ℃, enabling the temperature of the stirred slurry to be about 60 ℃, taking part of the slurry, and testing indexes such as apparent viscosity, fluidity, setting time and the like.
Step 303, performing a grouting experiment, namely, grouting high-temperature cement slurry into the grouting pipe 2, acquiring each temperature sensor by using the data acquisition module, performing online or offline analysis on the acquired data by using the data processing and analyzing module, and determining the diffusion behavior of the analyzed cement slurry. Specifically, position coordinates of each sensor are acquired; carrying out online or offline analysis on the acquired data, converting the electric signal into a temperature signal, comparing the time points of sudden numerical value increase in the temperature time course data of the temperature sensor, and determining the time when the slurry reaches the sensor; the diffusion process of the slurry is shown on-line (or historically).
In the embodiment of the invention, the method for judging the slurry reaching the sensor position is realized by comparing the numerical value burst time points in the temperature time course data of the temperature sensor, namely:
，
wherein,representing the maximum value of the slope of the temperature to the time in the time course data, namely taking the initial moment of the maximum slope as the time of the slurry diffusion;
of course, the present invention can also be determined by a graphical method, a typical temperature time course curve is shown in fig. 4, the temperature time course curves at the positions with the distances of 0cm, 10cm, 20cm and 30cm from the grouting hole are shown in the graph, the inclined line is the maximum slope in the time course curve, and the intersection point of the vertical line and the time axis is the time point when the grout reaches the position of the sensor:
FIG. 5 is a flow chart of an embodiment of a method of monitoring the dispersion behavior of a sand gravel cement slurry according to the present invention. The following will illustrate the monitoring process of the sand gravel cement slurry diffusion behavior monitoring method of the present invention by using an embodiment, which comprises the following steps:
1. layered loading sand gravel foundation model and sensor: and according to the designed particles and the requirement of sensor embedding, the configured sand gravel is loaded in layers, after the first layer is paved to reach the specified height, the temperature sensor is installed, the position of the sensor is measured again, and then the next layer of sand gravel is loaded. Embedding a grouting pipe at a set position; and finally, grouting equipment such as a grouting pump and the like is connected.
2. And connecting the transmission line of the sensor to the data acquisition module and the data processing and analyzing module, opening data processing and analyzing software, inputting relevant information of the sensor, and performing acquisition test to ensure that the data acquired by each sensor is accurate.
3. Preparing high-temperature cement paste, adopting hot water to prepare the cement paste, selecting the water temperature to be about 65-70 ℃, selecting the temperature of the stirred slurry to be about 60 ℃, taking part of the slurry, and carrying out index tests such as apparent viscosity, fluidity, setting time and the like.
4. And (4) grouting test, starting a grouting pump for grouting. Collecting each temperature sensor, analyzing the collected data on-line or off-line, and calculatingGet itAnd shows the diffusion process.
In conclusion, the method for monitoring the diffusion behavior of the sand gravel cement grouting slurry realizes monitoring of the diffusion process of the cement slurry in the sand gravel layer by monitoring the diffusion process of the cement slurry by using the high-temperature cement slurry and the pre-embedded temperature sensor, is convenient for researching the diffusion mechanism of the cement slurry, and provides support for the research of the grouting theory.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, the scope of the invention should be determined from the following claims.
Claims (9)
1. A method for monitoring the diffusion process of cement grout in a gravel layer at least comprises the following steps:
the cement grouting system for the gravel layer comprises a grouting pipe and the gravel layer which is loaded and configured layer by layer, wherein the grouting pipe is used for grouting high-temperature cement slurry into the gravel layer;
the temperature sensors are annularly arranged around the grouting pipes in the sand gravel layers;
the data acquisition module is used for acquiring data of each temperature sensor;
the data processing and analyzing module is used for carrying out online or offline analysis on the data acquired by the data acquisition module and determining the diffusion behavior of the analyzed cement paste;
the monitoring method comprises the following steps:
loading a sand gravel layer and arranging temperature sensors in a layered manner, burying grouting pipes at set positions, and connecting each temperature sensor to a data acquisition module and a data processing and analyzing module through transmission leads;
step two, preparing high-temperature cement paste;
and step three, pouring the high-temperature cement paste into the grouting pipe, collecting data of each temperature sensor by using the data collection module, carrying out online or offline analysis on the collected data by using the data processing and analyzing module, and determining diffusion behavior of the analyzed cement paste.
2. A method of monitoring the progress of diffusion of a gravel layer cement slurry according to claim 1, wherein: the sampling frequency of the data acquisition module is not less than 10 Hz.
3. A method of monitoring the progress of diffusion of a gravel layer cement slurry according to claim 1, wherein: the data processing and analyzing module is used for acquiring the position coordinates of each sensor, carrying out online or offline analysis on the data acquired by the data acquisition module, converting an electric signal into a temperature signal, and judging the moment when the grout reaches the position of the sensor through a temperature sudden increase point in a temperature time curve so as to realize the process monitoring of the diffusion of the grout.
4. A method of monitoring the progress of diffusion of a gravel layer cement slurry according to claim 1, wherein: the temperature sensors are uniformly arranged around the grouting hole of the grouting pipe in an annular mode.
5. A method of monitoring the progress of diffusion of a gravel layer cement slurry according to claim 1, wherein: the high-temperature cement paste is prepared by hot water at 65-70 ℃.
6. A method of monitoring the progress of the diffusion of a gravel layer grouting slurry as claimed in claim 1, wherein step one further comprises the steps of: loading and configuring sand gravel layers in a layered mode, installing a temperature sensor after the first layer is laid to reach a specified height, measuring the position of the sensor again, and then loading the sand gravel of the next layer; then setting the position to embed the grouting pipe; finally, grouting equipment is connected; connecting the transmission lead of each sensor to the data acquisition module and the data processing module; and inputting relevant information of each sensor, and performing acquisition test to ensure that the data acquired by each sensor is accurate.
7. A method of monitoring the progress of diffusion of a gravel layer cement slurry according to claim 1, wherein: in the second step, a part of the slurry is taken and index tests of apparent viscosity, fluidity and setting time are carried out.
8. A method of monitoring the progress of diffusion of a gravel layer cement slurry according to claim 7, wherein: the high-temperature cement paste is prepared by hot water at 65-70 ℃.
9. A method according to claim 1, wherein step three further comprises the steps of:
acquiring position coordinates of each sensor;
the data acquired by the data acquisition module is analyzed online or offline, the electric signal is converted into a temperature signal, and the time when the slurry reaches the position of the sensor is judged according to the temperature sudden increase point in the temperature time course curve;
showing the diffusion process of the slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510009248.9A CN104535461B (en) | 2015-01-08 | 2015-01-08 | Method for monitoring diffusion process of cement grouting fluid in sand gravel layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510009248.9A CN104535461B (en) | 2015-01-08 | 2015-01-08 | Method for monitoring diffusion process of cement grouting fluid in sand gravel layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104535461A CN104535461A (en) | 2015-04-22 |
| CN104535461B true CN104535461B (en) | 2017-05-24 |
Family
ID=52851035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510009248.9A Expired - Fee Related CN104535461B (en) | 2015-01-08 | 2015-01-08 | Method for monitoring diffusion process of cement grouting fluid in sand gravel layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104535461B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112985999B (en) * | 2021-02-09 | 2022-06-07 | 中铁隧道局集团有限公司 | Grouting model test device and method used under coupling effect of multi-field environment |
| CN113049452B (en) * | 2021-04-15 | 2021-10-26 | 中国水利水电科学研究院 | Device and method for measuring and controlling diffusion range of cement-based grout in grouting of covering layer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018152A (en) * | 2012-12-20 | 2013-04-03 | 湖南科技大学 | Indoor grouting testing device under simulation of complex stress effect and testing method thereof |
| CN103048439A (en) * | 2012-12-04 | 2013-04-17 | 三峡大学 | Pressure grouting experiment device |
| CN202956329U (en) * | 2012-12-20 | 2013-05-29 | 湖南科技大学 | Indoor grouting test device under action of simulated complex stress |
| CN204374033U (en) * | 2015-01-08 | 2015-06-03 | 中国水利水电科学研究院 | A kind of sand gravel layer cementation process slurries diffusion process monitoring device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2524414C1 (en) * | 2012-12-24 | 2014-07-27 | Шлюмберже Текнолоджи Б.В. | Method of determining adsorption heat and wetting heat of surface and calorimeter measurement cell |
-
2015
- 2015-01-08 CN CN201510009248.9A patent/CN104535461B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048439A (en) * | 2012-12-04 | 2013-04-17 | 三峡大学 | Pressure grouting experiment device |
| CN103018152A (en) * | 2012-12-20 | 2013-04-03 | 湖南科技大学 | Indoor grouting testing device under simulation of complex stress effect and testing method thereof |
| CN202956329U (en) * | 2012-12-20 | 2013-05-29 | 湖南科技大学 | Indoor grouting test device under action of simulated complex stress |
| CN204374033U (en) * | 2015-01-08 | 2015-06-03 | 中国水利水电科学研究院 | A kind of sand gravel layer cementation process slurries diffusion process monitoring device |
Non-Patent Citations (2)
| Title |
|---|
| 砂砾石土渗透注浆浆液扩散规律试验研究;秦鹏飞 等;《中国农村水利水电》;20141231(第4期);第148页至149页中的"试验材料、方法及设备"、"试验数据采集及实现方法"及"试验结果分析"，图1-图4 * |
| 考虑时间因素的岩体灌浆参数设计研究;符平 等;《岩土工程学报》;20141031;第36卷(第10期);第1808-1813页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104535461A (en) | 2015-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102768370B (en) | Based on hydraulically created fracture monitoring device and the monitoring method of dynamic electric coupling | |
| Jardine et al. | Measurement of stresses around closed-ended displacement piles in sand | |
| CN103498662B (en) | A kind of cement sheath structural integrity dynamics experimental device | |
| CN101625352B (en) | Test method of karst water burst when tunneling and monitor device thereof | |
| CN101354334B (en) | System for measuring in-situ small-sized permeability coefficient based on transient pressure pulse method | |
| CN102435543B (en) | Steady flow pumping test device for on-line full-hole continuous detection and detection method thereof | |
| CN109085645B (en) | A kind of recognition methods of the crack rock fracture grouting range of scatter based on micro seismic monitoring | |
| CN201460877U (en) | Comprehensive test system of drill hole packer test | |
| CN202494442U (en) | Stratum layering and settlement measuring device | |
| CN102621593B (en) | Multi-interlayer rock salt geological condition simulated cavity construction model test device | |
| CN111119901B (en) | Method for controlling settlement of existing structure | |
| CN201464860U (en) | Monitoring device for karst water burst during tunnel excavation | |
| CN102606146A (en) | Salt cavern model test method for simulating multi-interbedded salt rock geological conditions | |
| CN113988142B (en) | Tunnel lining cavity acoustic identification method based on convolutional neural network | |
| CN104749036B (en) | Rock mechanics system and method in situ | |
| CN104453981B (en) | A kind of colliery minery coal bed gas well parameter monitoring system and method | |
| CN104535461B (en) | Method for monitoring diffusion process of cement grouting fluid in sand gravel layer | |
| CN103591982B (en) | A kind of monitoring method of electric power tunnel structure problem | |
| CN102183794A (en) | Tri-component magnetic survey system in borehole | |
| WO2019148752A1 (en) | Foundation settlement testing system and method adopting resistance-sensitive geogrids | |
| CN204374033U (en) | A kind of sand gravel layer cementation process slurries diffusion process monitoring device | |
| CN104075843A (en) | Field immediate calibration method for earth pressure cell | |
| CN203249889U (en) | Metal pipeline corrosion detection device | |
| CN202330235U (en) | Steady flow pumping test equipment for online full-hole continuous detection | |
| CN105862940B (en) | Immersed tube tunnel basis fills sandpipe bottom pressure and monitors system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Inventor after: Huang Liwei Inventor after: Fu Ping Inventor after: Zhang Jinjie Inventor after: Xing Zhanqing Inventor after: Zhao Weiquan Inventor after: Zhou Jianhua Inventor after: Wang Lijuan Inventor before: Wang Chun Inventor before: Fu Ping Inventor before: Zhang Jinjie Inventor before: Zhao Weiquan Inventor before: Xing Zhanqing |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20200108 |