CN109187213B - Performance simulation test method and device for concrete-high compaction bentonite combined system - Google Patents
Performance simulation test method and device for concrete-high compaction bentonite combined system Download PDFInfo
- Publication number
- CN109187213B CN109187213B CN201811117734.2A CN201811117734A CN109187213B CN 109187213 B CN109187213 B CN 109187213B CN 201811117734 A CN201811117734 A CN 201811117734A CN 109187213 B CN109187213 B CN 109187213B
- Authority
- CN
- China
- Prior art keywords
- bentonite
- concrete
- base
- top cover
- water
- 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.)
- Active
Links
Images
Classifications
-
- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
Abstract
The invention belongs to the technical field of civil engineering (geotechnical) and geological engineering, and discloses a method and a device for a performance simulation test of a concrete-high-compaction bentonite combined system. The Mock-up device is used for ensuring that a sample is fully contacted with the concrete under the condition of constant volume; the liquid injection control device is used for simulating hydration permeation and expansion change of a bentonite sample under the condition of groundwater infiltration; the measuring device is connected with a computer through acquisition software, monitors in real time and automatically stores test data. The invention realizes the test research of the permeability, the expansibility, the chemical component demonstration of pore water, the long-term physical property and the porosity development of the bentonite when the bentonite is contacted with concrete under the action of simulating underground water solution of a disposal reservoir.
Description
Technical Field
The invention relates to a performance simulation test method and a performance simulation test device for a concrete-high compaction bentonite combined system, and belongs to the technical field of civil engineering (rock and soil) and geological engineering.
Background
High level radioactive waste (high level radioactive waste for short) is a special waste with strong radioactivity, long half-life of nuclide, large toxicity and large calorific value. In order to permanently and safely isolate the biosphere, it is now internationally accepted practice to seal the biosphere in a stable formation 500-1000m from the surface using a multiple barrier system. As the most important engineering barrier for preventing the radioactive nuclide from migrating to the underground water, the buffering/backfilling material has the key functions of maintaining the stable structure of the disposal reservoir, preventing the seepage of the underground water, blocking the nuclide migration, diffusing the nuclear radiant heat and the like.
Since the end of the last 70 th century, swedish scientists thought that bentonite had high swelling self-healing properties, low permeability and strong adsorption through a series of comparative studies on clay minerals, and that engineering performance requirements of buffering/backfilling materials could be achieved through appropriate engineering design. Subsequently, france, usa, belgium, china, etc. all chose bentonite as the ideal cushioning/backfill material substrate.
In actual engineering, a large amount of concrete and cement-based materials are used in the construction of disposal reservoirs as structural objects, lateral limits, backfill materials or engineering barrier materials. Statistically, in the european concept base, the amount of concrete used for design exceeds 50 ten thousand cubic meters. When the surrounding rock underground water infiltrates into the disposal reservoir, the concrete structure will continuously decay and release a large amount of K+、Na+、Ca2+、OH-And (3) plasma is used for causing the chemical composition of the pore water to change, so that a high-alkaline solution with the pH value of 10-13.5 is formed. After these alkaline solutes diffuse into the high compacted bentonite as a buffering/backfilling material, the montmorillonite, which is an effective mineral component, is gradually dissolved, the quality is lost, the dry density is reduced, the porosity is increased, the expansibility of the bentonite is reduced, the permeability is increased, and the expansibility is reduced obviously when the solution concentration is higher. Therefore, the high-alkalinity pore water and complex chemical components generated after the concrete is degraded enable the montmorillonite to be dissolved continuously, the high expansibility, the low permeability and the strong adsorbability of the bentonite are greatly damaged, and the safety of the whole disposal reservoir system is threatened finally. Therefore, it is very important to deeply research the influence rule of concrete decay on the long-term buffering performance of the high-compaction bentonite.
The research on the contact interface characteristics of bentonite and concrete under the high compaction condition is rarely reported.
Disclosure of Invention
The technical problem is as follows: the invention aims to provide a method and a device for simulating the performance and the state of a concrete-high-compaction bentonite combined system in a high-level radioactive waste disposal library, which are simple and convenient, easy to operate, multiple in sampling data and small in error, aiming at the characteristic that the decay of concrete in the high-level radioactive waste disposal library has long-term performance, and combining the existence of underground water in actual working conditions, from the perspective of indoor test analysis, and are used for analyzing the effect of a concrete-high-compaction bentonite contact interface under the chemical action of simulated underground water and the evolution rule and the distribution characteristic of the buffer performance of bentonite. The achievement obtained by the invention can provide a basic basis for the design, construction and long-term safety evaluation of the engineering barrier system of the disposal warehouse, and has important engineering significance and practical value.
The technical scheme is as follows: the invention relates to a concrete-high compaction bentonite combination system performance simulation test method, which comprises the following steps:
1) firstly, setting a concrete decay stage, configuring concrete mortar blocks of different decay stages of concrete according to a component formula of early stage, later stage and later stage of the concrete decay, hardening the concrete mortar blocks, and fully contacting with a compacted bentonite sample to form a concrete-high compacted bentonite contact interface;
2) the method comprises the following steps that a concrete/bentonite contact interface Mock-up device is connected with a water salt converter and a GDS pressure/volume controller, so that the aim of controlling pore water pressure and pore water volume can be achieved, a manually configured disposal library is controlled to simulate underground water solution pressure and flow, and an axial sensor is installed for measuring the evolution process of the axial expansive force of the bentonite in the process of pore water infiltration;
3) testing and collecting pore water pressure, flow, axial expansion force and pore water components in a liquid injection chamber of the concrete-high compacted bentonite combined system performance simulation test device in the operation process, and testing and analyzing the collected data to obtain permeability, expansion force and long-term development performance parameters of pore water chemical components of the high compacted bentonite in the concrete-high compacted bentonite contact action process;
4) after the concrete-high compaction bentonite combination system performance simulation test device is operated, taking out a high compaction bentonite sample, cutting the sample at different positions from bottom to top, and measuring and analyzing the mineral components, the pore structure and the water content of the bentonite at different distances from a contact interface after the concrete-high compaction bentonite is contacted, thereby obtaining the long-term characteristics of the physical property development and the pore change of the high compaction bentonite in the concrete-high compaction bentonite contact action process.
The invention relates to a concrete-high compaction bentonite combined system performance simulation test device, which comprises a concrete/bentonite contact interface Mock-up device, a liquid injection control device and a measuring device, wherein the Mock-up device comprises the following three parts:
1) the concrete/bentonite contact interface Mock-up device comprises a base, a solution chamber, a sleeve, a concrete sample ring, a bentonite sample ring, a permeable stone, a sealing ring, a piston, a lower top cover and an upper top cover. In order to keep the sealing, heat preservation and corrosion resistance in the test process, the concrete/bentonite contact interface Mock-up device is processed by stainless steel and polytetrafluoroethylene materials; wherein, base, solution cavity, bentonite sample ring, piston, lower top cap, go up the top cap and adopt stainless steel material, and sleeve, concrete sample ring adopt the polytetrafluoroethylene material.
The base is connected with the lower top cover through a bolt, and the sleeve is fixed between the base and the lower top cover; the solution chamber, the concrete sample ring and the bentonite sample ring are sequentially arranged in the sleeve from bottom to top and are tightly connected, and the permeable stone and the piston are sequentially arranged in the bentonite sample ring from bottom to top; the bottom of the piston is provided with an annular water tank and two through exhaust holes, and the two exhaust holes respectively penetrate from the bottom of the piston to two sides of the upper part of the piston; in order to guarantee the tightness of the base and the solution chamber, the tightness of the solution chamber and the concrete sample ring, the tightness of the concrete sample ring and the bentonite sample ring, and the tightness of the contact interface of the bentonite sample ring and the piston, annular sealing grooves are arranged at corresponding positions, and the tightness of a test instrument is guaranteed by arranging sealing rings.
An upper top cover is arranged above the piston, and the upper top cover is connected with the lower top cover through a bolt.
2) The liquid injection control device comprises a GDS pressure/volume controller, a conduit, a water-salt converter, a water injection base and a solution chamber. Wherein, the conduit adopts polytetrafluoroethylene material.
The bottom of the solution cavity is provided with a solution cavity water inlet and a solution cavity water outlet, the side wall of the base is respectively provided with a base water inlet and a base water outlet which are communicated, the base water inlet is communicated with the solution cavity water inlet, and the base water outlet is communicated with the solution cavity water outlet; the water-salt converter is provided with a converter water outlet and a converter water inlet, the base water inlet is connected with the converter water outlet through a conduit, and the converter water inlet is connected with the GDS pressure/volume controller through a conduit; the GDS pressure/volume controller can achieve the extrinsic experimental conditions of constant water injection rate or constant pressurization rate.
3) The measuring device comprises an axial pressure sensor, an expansion force data acquisition instrument and a GDS pressure/volume controller. The middle part of the bottom surface of the upper top cover of the concrete/bentonite contact interface Mock-up device is provided with a rotatable stainless steel wafer, the axial pressure sensor is fixed by a screw through the rotatable stainless steel wafer, the axial pressure sensor is further connected with an expansion force data acquisition instrument, and the data of the axial pressure sensor is read through the expansion force data acquisition instrument. The GDS pressure/volume controller can measure the flow and pressure of the influent in real time, with the data displayed on a computer connected thereto.
Has the advantages that:
the invention relates to a concrete-high compaction bentonite combined system behavior simulation test method and a device, which are used for measuring the long-term behavior of bentonite under a constant volume condition in a concrete contact state, concrete sample blocks at different decay stages are adopted to contact with high compaction bentonite to form a concrete/bentonite contact interface Mock-up device, so that the test research on the long-term behavior of the bentonite under the concrete decay action under the condition of simulating groundwater infiltration and the high compaction bentonite can be realized, and the method and the device have the following beneficial effects:
1) the invention realizes the chemo-hydro-mechanical coupling test of the bentonite under the condition of constant pressurization rate or constant water injection rate.
2) The invention realizes the experimental research of the development of the permeability coefficient and the expansive force in the process of simulating the hydration of underground water in the disposal warehouse under the condition of contact between bentonite and concrete.
3) The invention realizes the monitoring of the pore water infiltration and the change of the chemical components of the exudate at the contact interface of the concrete and the high compaction bentonite.
4) The invention realizes the development research of the long-term physical property and the porosity of the bentonite under the condition of simulating the contact condition between the bentonite and the concrete after the groundwater infiltration of the disposal reservoir.
5) The testing device provided by the invention is low in price, simple to operate, good in sealing effect, convenient to detect and practical in the field.
Drawings
FIG. 1 is a schematic structural view of a test apparatus according to the present invention;
FIG. 2 is a top view of the Mock-up apparatus of FIG. 1 showing the concrete/bentonite interface of the present invention;
FIG. 3a is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3B is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;
FIG. 3C is a cross-sectional view taken along line C-C of FIG. 1 in accordance with the present invention.
Wherein: 1, a base; 2 a solution chamber; 3, sleeving a sleeve; 4, concrete sample ring; 5, a bentonite sample ring; 6 is permeable stone; 7 is a sealing ring; 8, a piston; 9, a lower top cover; 10, exhausting holes; 11 an axial pressure sensor; 12, mounting a top cover; 13GDS pressure/volume controller; 14 a catheter; 15 water salt converter; 16 expansion force data acquisition instrument.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
As shown in fig. 1 to fig. 3c, the performance simulation test device for a concrete-high compacted bentonite combined system provided by the invention comprises a concrete/bentonite contact interface Mock-up device, a liquid injection control device and a measuring device:
1) the concrete/bentonite contact interface Mock-up device comprises a base 1, a solution chamber 2, a sleeve 3, a concrete sample ring 4, a bentonite sample ring 5, a permeable stone 6, a sealing ring 7, a piston 8, a lower top cover 9 and an upper top cover 12. Wherein, base 1, solution chamber 2, bentonite sample ring 5, piston 8, lower top cap 9, last top cap 12 adopt stainless steel material, and sleeve 3, concrete sample ring 4 adopt polytetrafluoroethylene material.
The base 1 is connected with the lower top cover 9 through bolts, and the sleeve 3 is fixed between the base 1 and the lower top cover 9; the solution chamber 2, the concrete sample ring 4 and the bentonite sample ring 5 are sequentially arranged in the sleeve 3 from bottom to top and are tightly connected, and the permeable stone 6 and the piston 8 are sequentially arranged in the bentonite sample ring 5 from bottom to top; the bottom of the piston 8 is provided with an annular water tank and two through exhaust holes 10, and the two exhaust holes 10 respectively penetrate from the bottom of the piston 8 to two sides of the upper part of the piston 8; in order to guarantee the tightness of the base 1 and the solution chamber 2, the tightness of the solution chamber 2 and the concrete sample ring 4, the tightness of the concrete sample ring 4 and the bentonite sample ring 5, and the tightness of the contact interface of the bentonite sample ring 5 and the piston 8, annular sealing grooves are arranged at corresponding positions, and the tightness of a test instrument is guaranteed by arranging a sealing ring 7.
An upper top cover 12 is arranged above the piston 8, and the upper top cover 12 is connected with the lower top cover 9 through bolts.
2) The liquid injection control device comprises a GDS pressure/volume controller 13, a conduit 14, a water-salt converter 15, a water injection base 1 and a solution chamber 2. The conduit 14 is made of polytetrafluoroethylene.
The bottom of the solution cavity 2 is provided with a solution cavity water inlet and a solution cavity water outlet, the side wall of the base 1 is respectively provided with a base water inlet and a base water outlet which are communicated, the base water inlet is communicated with the solution cavity water inlet, and the base water outlet is communicated with the solution cavity water outlet; the water-salt converter 15 is provided with a converter water outlet and a converter water inlet, the base water inlet is connected with the converter water outlet through a conduit 14, and the converter water inlet is connected with the GDS pressure/volume controller 13 through the conduit 14; the GDS pressure/volume controller 13 can achieve the external experimental conditions of constant water injection rate or constant pressurization rate.
3) The measuring device comprises an axial pressure sensor 11, an expansion force data acquisition instrument 16 and a GDS pressure/volume controller 13. A rotatable stainless steel wafer is arranged in the middle of the bottom surface of an upper top cover 12 of the concrete/bentonite contact interface Mock-up device, the axial pressure sensor 11 is fixed through a screw through the rotatable stainless steel wafer, the axial pressure sensor 11 is further connected with an expansion force data acquisition instrument 16, and data of the axial pressure sensor 11 are read through the expansion force data acquisition instrument 16. The GDS pressure/volume controller 13 can measure the flow and pressure of the influent in real time, with the data displayed on a computer connected thereto.
The implementation process of the invention is as follows:
1) preparing a concrete block: the concrete sample was placed in a concrete sample ring 4 of polytetrafluoroethylene having an inner diameter of 60mm and a height of 15 mm. In order to ensure the strength and permeability of the concrete block, in the preparation process of the concrete block, the concrete sample ring 4 is placed on filter paper, and ordinary portland cement is taken: water: the fine quartz sand is fully stirred and hardened in the concrete sample ring 4 for 28 days according to a certain proportion (referring to the formula of components for the decay of concrete at different stages), so that the cleanness and the strength of a concrete block are ensured.
2) Sample preparation: calculating the mass of loose soil required by pressing the sample with the diameter of 50mm and the height of 250mm according to the preset dry density and water content of the sample; powdery soil is poured into a stainless steel bentonite sample ring (5), then a sample pressing rod is slowly led in, a control press is used for uniformly compacting the soil sample according to the displacement rate of 0.1mm/min, when the compaction of the sample is finished, the sample is kept stand for 1 hour to ensure that the structure of the soil body in the sample is uniformly adjusted, and then the sample is unloaded at the displacement rate of 0.5 mm/min.
3) Installing an instrument: installing sealing rings 7 in sealing grooves of each part of a concrete/bentonite contact interface Mock-up device in place, placing a stainless steel solution chamber 2 on a base 1 according to the diagram shown in figure 1, communicating a base water inlet with a solution chamber water inlet, communicating a base water outlet with a solution chamber water outlet, then sequentially assembling a polytetrafluoroethylene concrete ring 4 filled with a hardened concrete sample, a stainless steel bentonite sample ring 5 filled with a compacted bentonite sample, a permeable stone 6 and a piston 8, and then installing a polytetrafluoroethylene sleeve 3, a lower top cover 9 and a bolt in place; then fixing the axial pressure sensor 11 and the upper top cover 12 in place and connecting the axial pressure sensor with an expansion force data acquisition instrument 16; the GDS pressure/volume controller 13 is connected with a water-salt converter 15 by a polytetrafluoroethylene conduit 14, and the water-salt converter 15 is connected with a base water inlet hole; and the GDS pressure/volume controller 13 is connected with a computer, and the acquisition time interval and the data storage length are set according to the experimental design.
4) The test was started: the constant pressure of the GDS pressure/volume controller 13 is set to 1 MPa; along with the continuous infiltration of the groundwater simulation liquid, the bentonite absorbs water and expands through the concrete sample block, so that the data of the axial pressure sensor 11 changes. Keeping the water injection pressure of the GDS pressure/volume controller 13 unchanged, enabling the concrete/bentonite sample to be in full contact reaction under the action of underground water of a simulated disposal warehouse in the test, taking the solution in the stainless steel liquid chamber 2 at the position of a water outlet valve of the base 1 by using a reagent bottle every 1 month, and reserving the solution for analyzing the chemical components of the seepage solution of pore water; and after the concrete/bentonite sample is in full contact reaction, stopping the liquid injection test, taking out the bentonite sample, and carrying out sample cutting treatment to remain to analyze physical properties and porosity parameters.
The embodiments described above are intended to facilitate the understanding and appreciation of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that appropriate modifications can be made to the embodiments and the generic principles defined herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments described herein, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (2)
1. The utility model provides a concrete-high compaction bentonite combination system behaviour simulation test device which characterized in that: the system comprises a concrete/bentonite contact interface Mock-up device, a liquid injection control device and a measuring device;
the concrete/bentonite contact interface Mock-up device is used for ensuring that a sample is fully contacted with a concrete block under a constant volume condition and is subjected to hydration reaction;
the liquid injection control device is used for realizing biochemical-water-force change of the sample under the action of simulating underground water of the disposal reservoir;
the measuring device comprises an axial pressure sensor, an expansion force data acquisition instrument and a GDS pressure/volume controller, is used for monitoring the development conditions of expansion force and permeability in the test process, is connected with a computer through acquisition software, and monitors and automatically stores test data in real time;
the concrete/bentonite contact interface Mock-up device comprises a base (1), a solution chamber (2), a sleeve (3), a concrete sample ring (4), a bentonite sample ring (5), a permeable stone (6), a sealing ring (7), a piston (8), a lower top cover (9) and an upper top cover (12);
the base (1) is connected with the lower top cover (9) through bolts, and the sleeve (3) is fixed between the base (1) and the lower top cover (9); the solution chamber (2), the concrete sample ring (4) and the bentonite sample ring (5) are sequentially arranged in the sleeve (3) from bottom to top and are tightly connected, and the permeable stone (6) and the piston (8) are sequentially arranged in the bentonite sample ring (5) from bottom to top; the bottom of the piston (8) is provided with an annular water tank and two through exhaust holes (10), and the two exhaust holes (10) respectively penetrate from the bottom of the piston (8) to two sides of the upper part of the piston (8);
the contact interface of the base (1) and the solution chamber (2), the contact interface of the solution chamber (2) and the concrete sample ring (4), the contact interface of the concrete sample ring (4) and the bentonite sample ring (5), and the contact interface of the bentonite sample ring (5) and the piston (8) are all sealed by sealing rings (7);
an upper top cover (12) is arranged above the piston (8), and the upper top cover (12) is connected with the lower top cover (9) through bolts;
the liquid injection control device comprises a GDS pressure/volume controller (13), a conduit (14), a water-salt converter (15), a water injection base (1) and a solution chamber (2);
the bottom of the solution cavity (2) is provided with a solution cavity water inlet hole and a solution cavity water outlet hole, the side wall of the base (1) is respectively provided with a base water inlet hole and a base water outlet hole which are communicated, the base water inlet hole is communicated with the solution cavity water inlet hole, and the base water outlet hole is communicated with the solution cavity water outlet hole;
the water-salt converter (15) is provided with a converter water outlet and a converter water inlet, the base water inlet is connected with the converter water outlet through a guide pipe (14), and the converter water inlet is connected with a GDS pressure/volume controller (13) through the guide pipe (14); the GDS pressure/volume controller (13) can achieve the external experimental conditions of constant water injection rate or constant pressurization rate;
the measuring device comprises an axial pressure sensor (11), an expansion force data acquisition instrument (16) and a GDS pressure/volume controller (13);
a rotatable stainless steel wafer is arranged in the middle of the bottom surface of an upper top cover (12) of the concrete/bentonite contact interface Mock-up device, an axial pressure sensor (11) is fixed by a screw through the rotatable stainless steel wafer, the axial pressure sensor (11) is further connected with an expansion force data acquisition instrument (16), and data of the axial pressure sensor (11) is read through the expansion force data acquisition instrument (16);
the GDS pressure/volume controller (13) measures the flow and pressure of the influent permeate in real time and the data is displayed on a computer connected thereto.
2. The concrete-high compaction bentonite combination system behavior simulation test device of claim 1, characterized in that: the concrete/bentonite contact interface Mock-up device is processed by stainless steel and polytetrafluoroethylene materials;
the base (1), the solution chamber (2), the bentonite sample ring (5), the piston (8), the lower top cover (9) and the upper top cover (12) are made of stainless steel, and the sleeve (3) and the concrete sample ring (4) are made of polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117734.2A CN109187213B (en) | 2018-09-21 | 2018-09-21 | Performance simulation test method and device for concrete-high compaction bentonite combined system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117734.2A CN109187213B (en) | 2018-09-21 | 2018-09-21 | Performance simulation test method and device for concrete-high compaction bentonite combined system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109187213A CN109187213A (en) | 2019-01-11 |
| CN109187213B true CN109187213B (en) | 2021-07-02 |
Family
ID=64909715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811117734.2A Active CN109187213B (en) | 2018-09-21 | 2018-09-21 | Performance simulation test method and device for concrete-high compaction bentonite combined system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109187213B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160883B (en) * | 2019-06-11 | 2020-08-18 | 同济大学 | Osmotic pressure device for high-compaction bentonite test and test method |
| CN110987771B (en) * | 2019-10-29 | 2022-07-19 | 交通运输部公路科学研究所 | Test method for simulating interface concrete corrosion between tunnel lining structure and surrounding rock |
| KR102305815B1 (en) * | 2019-12-09 | 2021-09-28 | 주식회사 포스코 | Measuring apparatus for deformation and method thereof |
| CN112036028B (en) * | 2020-08-28 | 2023-05-09 | 东华理工大学 | High-level waste disposal warehouse bentonite homogenization model and stability evaluation method |
| CN113686754B (en) * | 2021-09-14 | 2023-04-21 | 中国科学院武汉岩土力学研究所 | Sample penetration test method based on irradiation-stress coupling effect |
| CN113970570B (en) * | 2021-10-21 | 2022-09-16 | 中南大学 | Device and method for testing barrier performance of unsaturated bentonite particle material |
| CN114047043B (en) * | 2021-11-16 | 2023-05-05 | 福建工程学院 | Experimental device and experimental method for preparing joint-containing bentonite compaction sample |
| CN115310026B (en) * | 2022-10-12 | 2022-12-30 | 海南浙江大学研究院 | Bentonite expansive force prediction method and system considering ionic hydration energy |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03267739A (en) * | 1990-03-16 | 1991-11-28 | Shimizu Corp | Method for measuring effective gap rate of aquifer by water permeability test using tracer |
| CN201408187Y (en) * | 2009-05-14 | 2010-02-17 | 核工业北京地质研究院 | Microcomputer-controlled high-temperature expansion and penetrability determinator |
| CN102221600A (en) * | 2011-06-03 | 2011-10-19 | 同济大学 | Expansion force and saturated permeation multifunctional tester |
| CN103091173A (en) * | 2013-01-14 | 2013-05-08 | 桂林理工大学 | Triaxial test apparatus of soil under water-soil chemical action and method thereof |
| CN103115861A (en) * | 2012-12-26 | 2013-05-22 | 中国人民解放军63653部队 | Accelerated corrosion method under landfill condition |
| CN105115887A (en) * | 2015-09-08 | 2015-12-02 | 中国科学院海洋研究所 | Metal material corrosion testing device and method under high-pressure densely-compacted bentonite environment |
| CN105866384A (en) * | 2016-06-03 | 2016-08-17 | 天津城建大学 | Pore water salinity replacement and consolidation test device |
| CN106813817A (en) * | 2016-02-26 | 2017-06-09 | 中国辐射防护研究院 | Two-way swelling stress measures test instrument |
| CN107052021A (en) * | 2017-04-11 | 2017-08-18 | 中国矿业大学 | A kind of allocation method of Hlw Geological Repository artificial barrier padded coaming |
| CN108343086A (en) * | 2018-03-29 | 2018-07-31 | 何满潮 | Anti- nuclein migration barriers and its construction method for underground neutron energy power station |
-
2018
- 2018-09-21 CN CN201811117734.2A patent/CN109187213B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03267739A (en) * | 1990-03-16 | 1991-11-28 | Shimizu Corp | Method for measuring effective gap rate of aquifer by water permeability test using tracer |
| CN201408187Y (en) * | 2009-05-14 | 2010-02-17 | 核工业北京地质研究院 | Microcomputer-controlled high-temperature expansion and penetrability determinator |
| CN102221600A (en) * | 2011-06-03 | 2011-10-19 | 同济大学 | Expansion force and saturated permeation multifunctional tester |
| CN103115861A (en) * | 2012-12-26 | 2013-05-22 | 中国人民解放军63653部队 | Accelerated corrosion method under landfill condition |
| CN103091173A (en) * | 2013-01-14 | 2013-05-08 | 桂林理工大学 | Triaxial test apparatus of soil under water-soil chemical action and method thereof |
| CN105115887A (en) * | 2015-09-08 | 2015-12-02 | 中国科学院海洋研究所 | Metal material corrosion testing device and method under high-pressure densely-compacted bentonite environment |
| CN106813817A (en) * | 2016-02-26 | 2017-06-09 | 中国辐射防护研究院 | Two-way swelling stress measures test instrument |
| CN105866384A (en) * | 2016-06-03 | 2016-08-17 | 天津城建大学 | Pore water salinity replacement and consolidation test device |
| CN107052021A (en) * | 2017-04-11 | 2017-08-18 | 中国矿业大学 | A kind of allocation method of Hlw Geological Repository artificial barrier padded coaming |
| CN108343086A (en) * | 2018-03-29 | 2018-07-31 | 何满潮 | Anti- nuclein migration barriers and its construction method for underground neutron energy power station |
Non-Patent Citations (2)
| Title |
|---|
| Evolution of pore water chemistry during degradation of cement in a radioactive waste repository environment;Berner U R;《Waste Management》;19921231;第201-219页 * |
| Microstructural evolution and physico-chemical behavior of compacted clayey soil submitted to an alkaline plume;Deneele D 等;《Journal of Rock Mechanics and Geotechnical Engineering》;20101231;第2卷(第2期);第169-177页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109187213A (en) | 2019-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109187213B (en) | Performance simulation test method and device for concrete-high compaction bentonite combined system | |
| Daniell | STATE-OF-THE-ART: FOR SATURATED SOILS | |
| Zhu et al. | Influence of salt solutions on the swelling pressure and hydraulic conductivity of compacted GMZ01 bentonite | |
| Faybishenko | Hydraulic behavior of quasi‐saturated soils in the presence of entrapped air: Laboratory experiments | |
| CN103837385B (en) | Coarse-grained soil high polymer grouting triaxial test sample preparation device and using method thereof | |
| Chen et al. | Swelling deformation of compacted GMZ bentonite experiencing chemical cycles of sodium-calcium exchange and salinization-desalinization effect | |
| Wang et al. | A comparative study on the hydro-mechanical behavior of compacted bentonite/sand plug based on laboratory and field infiltration tests | |
| CN106546710B (en) | Test device for measuring self-sealing and healing characteristics of engineering barrier system | |
| CN110044792B (en) | Multifunctional low-permeability medium gas permeability testing device and testing method | |
| CN108693020A (en) | A kind of padded coaming expansive force and saturation test method | |
| Cui et al. | Investigation on gas migration in saturated bentonite using the residual capillary pressure technique with consideration of temperature | |
| CN110988299A (en) | Device for testing unsaturated expansive force of high-compaction bentonite assembly | |
| CN109323902A (en) | A kind of experimental rig and test method of microorganism gelling Stabilization of Loess sample | |
| CN203502409U (en) | Pressure chamber for tester with high temperature expansibility and permeability | |
| CN104865131A (en) | Bentonite hydraulic fracturing feature determination device | |
| CN113155701B (en) | Bentonite penetration-diffusion-expansive force combined test device and test method thereof | |
| CN205138904U (en) | Improved generation concreties box | |
| CN204301779U (en) | A kind of indoor deep hole grouting multi-parameter combined measuring instrument | |
| CN211877704U (en) | Device for testing interface permeability of high-compaction bentonite assembly | |
| WO2020048186A2 (en) | 3d printing-based complex fractal fracture multi-coupling seepage experiment system and method | |
| CN110702582A (en) | Device for testing interface permeability of high-compaction bentonite assembly and application | |
| CN113866065A (en) | Deep mine gas-water mixed penetration test system and test method thereof | |
| CN211826025U (en) | Device for testing unsaturated expansive force of high-compaction bentonite assembly | |
| CN114354451A (en) | Unsaturated soil high-pressure grouting test device and measuring system thereof | |
| CN209087248U (en) | A kind of simulator for probing into clay retardation in more streaming system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |