CN109580385B - Test equipment and test method for resisting underground engineering settlement damage of waterproof layer - Google Patents
Test equipment and test method for resisting underground engineering settlement damage of waterproof layer Download PDFInfo
- Publication number
- CN109580385B CN109580385B CN201811367104.0A CN201811367104A CN109580385B CN 109580385 B CN109580385 B CN 109580385B CN 201811367104 A CN201811367104 A CN 201811367104A CN 109580385 B CN109580385 B CN 109580385B
- Authority
- CN
- China
- Prior art keywords
- test block
- waterproof layer
- frame
- test
- waterproof
- 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
- 238000012360 testing method Methods 0.000 title claims abstract description 221
- 230000006378 damage Effects 0.000 title claims abstract description 63
- 238000010998 test method Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 52
- 238000003825 pressing Methods 0.000 claims abstract description 31
- 230000014759 maintenance of location Effects 0.000 claims description 25
- 238000006073 displacement reaction Methods 0.000 claims description 18
- 238000010008 shearing Methods 0.000 claims description 16
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract description 61
- 238000010276 construction Methods 0.000 abstract description 16
- 238000011161 development Methods 0.000 abstract description 6
- 230000019771 cognition Effects 0.000 abstract description 5
- 238000004088 simulation Methods 0.000 abstract description 5
- 238000012795 verification Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 135
- 238000004519 manufacturing process Methods 0.000 description 25
- 239000004570 mortar (masonry) Substances 0.000 description 11
- 238000013461 design Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 238000004078 waterproofing Methods 0.000 description 9
- 238000004062 sedimentation Methods 0.000 description 8
- 239000010426 asphalt Substances 0.000 description 7
- 239000011247 coating layer Substances 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 239000002131 composite material Substances 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a test device and a test method for a waterproof layer to resist underground engineering settlement damage, wherein the test device comprises the following steps: the test block fixing frame is L-shaped, the upper part of the test block fixing frame is provided with a rectangular test block frame, and the rectangular test block frame is used for fixing one end of a test block; the sliding frame is concave, the opening of the concave faces the test block fixing frame and is horizontally arranged, and the sliding frame is used for fixing the other end of the test block; the pressing beam component comprises a pressing beam and a driving device for driving the pressing beam to vertically move, and the pressing beam is arranged on the upper part of the sliding frame and connected with the sliding frame; the test block is placed in a test device for settlement damage, vertical settlement force is borne, correct cognition is favorably formed on building waterproof materials and construction systems in the settlement process through simulation and verification, and the development of the industry to standardization and standardization is promoted.
Description
Technical Field
The invention belongs to the technical field of test and evaluation of waterproof products, and particularly relates to a test device and a test method for a waterproof layer to resist underground engineering settlement damage.
Background
At present, the leakage rate of domestic underground construction engineering is high: according to the leakage condition investigation result of 2013 China building waterproofing Association in the latest national census, the domestic underground engineering waterproofing leakage rate reaches 57.51%, and the leakage rate of individual urban areas is 100%. In addition, in recent 20 years, the number of middle and high-rise buildings in domestic buildings is large, a large underground space structure is attached, and the leakage probability is integrally higher. Underground engineering seepage positions are mostly concentrated in structural corners, reserved seams, wall penetrating pipe roots and other positions, and seepage occurs in 2-3 years after engineering completion.
Through analyzing and summarizing the phenomena and problems of the seepage engineering, the problems of the underground engineering such as water-proof failure and seepage are closely related to the settlement phenomenon of the building structure. In the construction process, the building volume and load are gradually increased, the surrounding soil has compressibility, and the structure used in the initial stage usually sinks 50-200 mm before the start of work; the waterproof layer is used as a weak flexible material on the periphery of a building, and is most easily damaged on the detail in the whole sedimentation process.
The waterproof material that can be used for underground engineering large-area main body is mainly divided into five categories, more than twenty categories, according to the technical specification of underground waterproof engineering, but for the above materials, the specification only requires with conventional low-temperature flexibility, tensile force, elongation physical indexes, but during actual test, the product index embodies two directions: on one hand, when the engineering design is caused by the fact that the tensile strength of the material with the tire base reinforcement is high but the elongation is low, the elongation of the material without the tire base reinforcement is high but the tensile property is poor, different product raw materials, design thicknesses and the like are different, the prices are different, the unified comparison and measurement standard is not provided, and designers determine the material according to experience and engineering cost bearing capacity, so that the design is difficult to objectively combine with the engineering requirements.
The prior art has the following disadvantages and technical problems to be solved:
the existing waterproof material standards and construction specification technical requirements only aim at physical and mechanical tests of materials, do not consider the comprehensive stress condition of the waterproof material after being constructed in a building structure, and cannot reflect the damage resistance of the material along with the structure settlement process after being constructed.
When the mechanical property of the existing waterproof material is tested, only the stress condition of the material in a free state is tested, and the damage of the material in a plane large-area can be simulated; however, the leakage of the waterproof engineering mostly occurs at engineering detail nodes, the parts are usually damaged by multi-axis synchronous stress, and no corresponding material applicability and reliability evaluation test method exists at present aiming at the limiting damage change process of the parts.
Therefore, by summarizing the waterproof layer damage principle of common settlement damage nodes in actual engineering and carrying out unified simulation platform test on various waterproof materials, the equipment for resisting structural settlement of different waterproof layers in underground engineering and the test method thereof are provided.
Disclosure of Invention
The invention provides a test device and a test method for resisting underground engineering settlement damage of a waterproof layer.
According to an aspect of the present invention, there is provided a test apparatus for testing the ability of a waterproof layer to resist the settlement damage of underground works, the apparatus comprising:
the test block fixing frame is L-shaped, the upper part of the test block fixing frame is provided with a rectangular test block frame, and the rectangular test block frame is used for fixing one end of a test block;
the sliding frame is concave, an opening of the concave is towards the test block fixing frame and is horizontally arranged, and the sliding frame is used for fixing the other end of the test block;
the pressing beam component comprises a pressing beam and a driving device for driving the pressing beam to vertically move, and the pressing beam is arranged on the upper portion of the sliding frame and connected with the sliding frame.
Preferably, the test block is fixed to the rectangular test block frame and the sliding frame by fastening bolts.
Preferably, the device further comprises a base, and the transverse edge of the L shape is fixed on the base.
Preferably, the sliding rack further comprises a pair of sliding rod assemblies, the pair of sliding rod assemblies are vertically arranged on two sides of the sliding rack, and each sliding rod assembly comprises a sliding rod arranged on the base and a sliding cylinder slidably sleeved on the sliding rod.
Preferably, the sliding frame comprises a top plate, side plates and a bottom plate which are connected in sequence, and the top plate and the bottom plate are connected with the sliding cylinder.
According to another aspect of the invention, a method for testing the capability of a waterproof layer to resist underground engineering settlement damage is provided, and the method comprises the following steps:
step 1: selecting a test block, wherein the test block comprises at least one rough surface, and a waterproof layer is attached to each rough surface;
step 2: fixing two ends of the test block on the fixed frame and the sliding frame respectively through positioning bolts, and arranging the waterproof layer along the horizontal direction or the vertical direction;
and step 3: and starting a driving device, driving the sliding frame to vertically move through a pressing beam, and recording the displacement and the form of the shearing damage of the waterproof layer of the test block and the minimum thickness of the waterproof layer which is not subjected to the shearing damage.
Preferably, the method further comprises the following steps:
repeating the steps 1 to 3 for multiple times, and selecting test blocks with different roughness of the rough surface each time;
and calculating the thickness retention rate and reliability of the waterproof layer corresponding to the test block under different unevenness conditions.
Preferably, the calculation formula of the thickness retention rate is:
f＝K/D，
wherein f represents the thickness retention rate, K is the minimum thickness of the waterproof layer which is sheared and damaged, and D is the original thickness of the waterproof layer.
Preferably, the reliability R is calculated by the following formula:
R＝(1+f)×W×(Fc/5)2
wherein f represents the thickness retention rate, W represents the displacement amount, and Fc represents the roughness of the rough surface.
According to another aspect of the invention, a method for testing the capability of a waterproof layer to resist underground engineering settlement damage is provided, and the method comprises the following steps:
step 1: selecting a test block, wherein a waterproof layer is attached to at least one surface of the test block;
step 2: fixing two ends of the test block on the fixed frame and the sliding frame respectively through positioning bolts, and arranging the waterproof layer along the horizontal direction or the vertical direction;
and step 3: and starting a driving device, driving the sliding frame to vertically move through a pressing beam, and recording the displacement and the form of the shearing damage of the waterproof layer of the test block and the minimum thickness of the waterproof layer which is not subjected to the shearing damage.
And 4, step 4: and calculating the thickness conservation rate and reliability of the waterproof layer of the test block.
Preferably, the calculation formula of the thickness retention rate is:
f＝K/D
wherein f represents the thickness retention rate, K is the minimum thickness of the sheared and damaged waterproof layer, and D is the original thickness of the waterproof layer;
preferably, the reliability R is calculated by the following formula:
R＝(1+f)×W×(Fc/5)2
wherein f represents the thickness retention rate, W represents the displacement amount, and Fc represents the roughness of the rough surface.
Preferably, the manufacturing of the plurality of test blocks with different unevenness at the same node part comprises: different unevenness degrees are arranged on the surface of the same test block in an increasing manner according to +1 mm.
Preferably, the test blocks manufactured at the underground node positions of the building comprise a protection wall test block, a deformation joint test block, a bottom plate test block and a cushion layer test block.
Preferably, the test block is formed by filling mortar in a mold and compacting.
The invention has the beneficial effects that:
1. applying a transverse (horizontal) limiting force through a fastening bolt, fixing two ends of a test block on a test block fixing frame and a sliding frame respectively, simulating the side pressure of backfill soil, and then arranging a waterproof layer along the horizontal direction; and starting a driving device, driving the sliding frame to vertically move through the pressing beam, pressing the main structure part of the test block at a low speed, simulating the settlement of the main structure body, recording the displacement and the form of the shearing damage of the waterproof layer of the test block, and recording the minimum thickness of the waterproof layer which is not sheared and damaged.
2. And (3) measuring the main body settlement amount of the waterproof layer when the waterproof layer is damaged, and determining the structural settlement damage capability which can be resisted by different waterproof materials and design methods by comparing the settlement amounts of different waterproof materials and waterproof layer design methods. Compared with the existing material detection method, the method only detects a single index of the material, the used test method is to perform composite test on the material and the structure, the stress effect of the material simulation engineering can be reflected, and the tested reliability is the reliability of the material after the material is constructed on the structure.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
FIG. 1 shows a schematic structural diagram of a mold assembly for making a test block for simulating a subterranean node location of a building, according to one embodiment of the present invention.
Fig. 2 shows a schematic diagram of manufacturing a protection wall preform according to an embodiment of the invention.
FIG. 3 shows a schematic diagram of a manufacturing process of a structural wall test block according to an embodiment of the present invention.
FIG. 4 shows a schematic view of an L-shaped corner block fabrication according to one embodiment of the present invention.
Fig. 5 shows a schematic structural diagram of a test device for the capability of a waterproof layer to resist the settlement damage of underground works according to an embodiment of the invention.
Figure 6 shows a right side view of a test rig for the ability of a waterproofing layer to withstand subterranean formation settlement damage according to one embodiment of the present invention.
Fig. 7 shows a left side view of a test apparatus for the ability of a waterproofing layer to withstand the settlement damage of underground works according to an embodiment of the present invention.
Description of the reference numerals
1. The coaming can be disassembled; 2. a trough-shaped body; 3. a base plate; 4. testing blocks; 5. a cuboid; 6. a waterproof layer; 7. a test block fixing frame; 8. a carriage; 9. pressing the beam; 10. fastening a bolt; 11. a base; 12. a slide bar; 13. a slide cylinder; 14. a rectangular test block frame; 15. u-shaped reinforcing steel bars.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
According to the embodiment of the invention, the test equipment for the capability of the waterproof layer for resisting the settlement damage of the underground engineering is provided, and the test equipment comprises:
the test block fixing frame is L-shaped, the upper part of the test block fixing frame is provided with a rectangular test block frame, and the rectangular test block frame is used for fixing one end of a test block; the sliding frame is concave, the opening of the concave faces the test block fixing frame and is horizontally arranged, and the sliding frame is used for fixing the other end of the test block; the pressing beam component comprises a pressing beam and a driving device for driving the pressing beam to vertically move, and the pressing beam is arranged on the upper portion of the sliding frame and connected with the sliding frame.
Selecting nodes at the position most prone to sedimentation deformation in underground engineering, manufacturing corresponding test blocks, arranging different unevenness on the surface of the test block of the same type, applying uniform transverse and longitudinal pressure on the test block part of the main structure body, observing and recording different methods of different waterproof materials and the same type of waterproof materials to obtain the waterproof layer, and obtaining the maximum sedimentation amount which can be resisted at each node.
Applying a transverse limiting force through a fastening bolt, fixing two ends of a test block on a test block fixing frame and a sliding frame respectively, simulating the side pressure of backfill soil, and then arranging a waterproof layer along the horizontal direction; and starting a driving device, driving the sliding frame to vertically move through the pressing beam, pressing the main structure part of the test block at a low speed, simulating the settlement of the main structure body, recording the displacement and the form of the shearing damage of the waterproof layer of the test block, and recording the minimum thickness of the waterproof layer which is not sheared and damaged.
Preferably, the test block is fixed on the rectangular test block frame and the sliding frame through fastening bolts, and the transverse limiting force is applied to the test block while the test block is fixed, so that the backfill side pressure is simulated.
As the preferred scheme, still include the base, the horizontal limit of L shape is fixed in on the base, is favorable to the stable setting on the base of test block mount.
Preferably, the sliding rack further comprises a pair of sliding rod assemblies, the pair of sliding rod assemblies are vertically arranged on two sides of the sliding rack, and each sliding rod assembly comprises a sliding rod arranged on the base and a sliding cylinder slidably sleeved on the sliding rod.
Specifically, the carriage upper end is connected with the pressure beam position, and the slide cartridge can move along the slide bar, has added test block and has pushed down straightness accuracy and horizontal fastening stability in-process.
As the preferred scheme, the sliding frame comprises a top plate, side plates and a bottom plate which are sequentially connected, and the top plate and the bottom plate are connected with the sliding barrel, so that the sliding frame can move along the sliding barrel conveniently.
According to another aspect of the present invention, a mold assembly for manufacturing a test block simulating a location of a subterranean node of a building according to an embodiment of the present invention includes:
the four detachable surrounding plates are sequentially connected and form a rectangular groove-shaped body; and each bottom plate can be detachably arranged at the bottom of the groove body, and the upper surface of each bottom plate has different surface irregularities so as to manufacture test blocks with different surface irregularities.
According to different forms of interlayer damage and corner extrusion and stretching damage of the waterproof layer, underground joint positions of buildings are simulated, and test blocks with different surface unevenness can be manufactured by designing dies according to different structures. In the underground engineering structure and waterproof composite system of systematic analysis, put into the test equipment of subsiding the destruction through the test block, bear vertical subsiding force, contrast the waterproof layer and resist the subsiding ability under the certain unevenness condition, simulation and verification subside in-process, the waterproof layer of analysis key structure position is destroyed the principle, is favorable to forming correct cognition to building waterproof material, construction system, promotes the industry to standardize, standardized development.
Preferably, the surface unevenness is 0-10 mm.
Specifically, different unevenness degrees are respectively arranged on the bottom plate according to different quality conditions of the waterproof construction base layer, and the same test block structure with different unevenness degrees is manufactured and used for respectively testing the settlement resisting capacity of the contrast waterproof layer under the condition of a certain unevenness degree.
Preferably, the L-shaped corner test block further comprises a plurality of cuboids, the length of each cuboid is the same as that of the groove-shaped body, the height of each cuboid is smaller than that of the groove-shaped body, the width of each cuboid is smaller than that of the groove-shaped body, each cuboid can be detachably arranged in the groove-shaped body, and the upper surface of each cuboid is aligned with the upper end face of the groove-shaped body so as to manufacture the L-shaped corner test block.
Specifically, mortar is filled into a mold of the groove-shaped body, and a rectangular parallelepiped is placed into the groove-shaped body, and the upper surface of the rectangular parallelepiped is aligned with the upper end surface of the groove-shaped body, thereby producing an L-shaped corner test block.
According to another aspect of the present invention, a method for manufacturing a test block is provided, the method comprising:
step 1: arranging a bottom plate at the bottom of the trough body;
step 2: filling the prepared mortar in the groove-shaped body and compacting and forming to form a primary test block;
and step 3: taking out the primary test block from the groove-shaped body, and attaching a waterproof layer on the rough surface of the primary test block, wherein the rough surface is the surface which is contacted with the upper surface of the bottom plate in the step 1.
Preferably, the method further comprises the following steps: and 3, after the step 3 is finished, putting the test block with the waterproof layer attached to the rough surface into the groove-shaped body, enabling the waterproof layer to face upwards, filling the configured mortar on the upper surface of the waterproof layer, and compacting and forming to manufacture the test block for the protective wall part.
As preferred scheme, the waterproof layer is modified asphalt waterproofing membrane, polymer waterproofing membrane or waterproof coating layer, realizes the detection needs to the anti building settlement destruction of different waterproof material.
Preferably, the method further comprises the following steps: and (3) repeating the steps 1 to 3 for multiple times, and gradually increasing the surface unevenness of the upper surface of the bottom plate selected each time by 1 mm.
Specifically, a waterproof layer is attached to each test block with unevenness, and the building settlement damage resistance is performed on each test block.
Preferably, the mold assembly further comprises a plurality of cuboids, the length of each cuboid is the same as that of the groove-shaped body, the height of each cuboid is smaller than that of the groove-shaped body, the width of each cuboid is smaller than that of the groove-shaped body, each cuboid can be detachably arranged in the groove-shaped body, and the upper surface of each cuboid is aligned with the upper end surface of the groove-shaped body so as to manufacture the L-shaped corner test block;
the test block manufacturing method further comprises the following steps: after step 1, a cuboid is arranged in the trough-shaped body, the upper surface of the cuboid is aligned with the upper end face of the trough-shaped body, one surface of the cuboid is opposite to the upper surface of the bottom plate, and a gap is formed between the other surface of the cuboid and a detachable enclosing plate.
In particular, the test block for manufacturing the L-shaped corner is used for monitoring the anti-settling damage capability of different waterproof materials for resisting weak parts of buildings.
According to another aspect of the present invention, a method for manufacturing a test block is provided, the method comprising:
step 1: arranging a bottom plate at the bottom of the trough body;
step 2: filling the prepared mortar in the groove-shaped body and compacting and forming to form a primary test block;
and step 3: taking out the primary test block from the groove-shaped body, and attaching a waterproof layer on the rough surface of the primary test block, wherein the rough surface is the surface which is contacted with the upper surface of the bottom plate in the step 1.
Preferably, the method further comprises the following steps: and 3, after the step 3 is finished, putting the test block with the waterproof layer attached to the rough surface into the groove-shaped body, enabling the waterproof layer to face upwards, filling the configured mortar on the upper surface of the waterproof layer, and compacting and forming to manufacture the structural wall test block.
As preferred scheme, the waterproof layer is modified asphalt waterproofing membrane, polymer waterproofing membrane or waterproof coating layer, realizes the detection needs to the anti building settlement destruction of different waterproof material.
Preferably, the method further comprises the following steps: and (3) repeating the steps 1 to 3 for multiple times, and gradually increasing the surface unevenness of the upper surface of the bottom plate selected each time by 1 mm.
Specifically, a waterproof layer is attached to each test block with unevenness, and the building settlement damage resistance is performed on each test block.
Preferably, the mold assembly further comprises a plurality of cuboids, the length of each cuboid is the same as that of the groove-shaped body, the height of each cuboid is smaller than that of the groove-shaped body, the width of each cuboid is smaller than that of the groove-shaped body, each cuboid can be detachably arranged in the groove-shaped body, and the upper surface of each cuboid is aligned with the upper end surface of the groove-shaped body so as to manufacture the L-shaped corner test block;
the test block manufacturing method further comprises the following steps: after step 1, a cuboid is arranged in the trough-shaped body, the upper surface of the cuboid is aligned with the upper end face of the trough-shaped body, one surface of the cuboid is opposite to the upper surface of the bottom plate, and a gap is formed between the other surface of the cuboid and a detachable enclosing plate.
In particular, the test block for manufacturing the L-shaped corner is used for monitoring the anti-settling damage capability of different waterproof materials for resisting weak parts of buildings.
As the preferred scheme, the test block is taken as a structure wall test block, a protection wall test block, a deformation joint test block, a bottom plate test block or a cushion layer test block
And (3) simulating the settlement process of the underground node part of the building, and analyzing and calculating the forms and bearing limits of tensile damage of different waterproof layers on key parts such as a protective wall, a deformation joint, a bottom plate, a cushion layer and the like. Therefore, the underground node part of the building is simulated according to the manufacturing mold, for example, the test block of the protection wall part is a mortar compaction structure with a waterproof layer sandwiched in the middle; the L-shaped corner test block simulates a building structure in a vertical plate thereof, is reinforced by U-shaped steel bars, and is provided with a waterproof layer on the inner surface of the L shape.
According to another aspect of the invention, a method for testing the capability of a waterproof layer to resist underground engineering settlement damage is provided, and the method comprises the following steps:
step 1: selecting a test block, wherein the test block comprises at least one rough surface, and a waterproof layer is attached to each rough surface;
step 2: fixing two ends of the test block on the fixing frame and the sliding frame respectively through positioning bolts, and arranging the waterproof layer along the horizontal direction or the vertical direction;
and step 3: and starting a driving device, driving the sliding frame to vertically move through the pressing beam, and recording the displacement and the form of the shearing damage of the waterproof layer of the test block and the minimum thickness of the waterproof layer which is not subjected to the shearing damage.
The method comprises the steps of simulating the settlement process of the underground node position of the building, analyzing and calculating the tensile failure forms and bearing limits of the waterproof layers of different design methods on key positions such as a protective wall, a deformation joint, a bottom plate, a cushion layer and the like, evaluating the construction system of the existing waterproof layer, and evaluating the reliability of the waterproof layers with different thicknesses.
The underground engineering structure and the waterproof composite system are analyzed systematically, the waterproof layer damage principle of the key structural change damage part in the sedimentation process is simulated and verified, correct cognition is favorably formed on the building waterproof material and the construction system, and the development of the industry to standardization and standardization is promoted.
Preferably, the method further comprises the following steps:
repeating the steps 1 to 3 for multiple times, and selecting test blocks with different roughness of the rough surface each time;
and calculating the thickness retention rate and reliability of the waterproof layer corresponding to the test block under different unevenness conditions.
Selecting nodes of the parts which are most prone to sedimentation deformation in underground engineering, manufacturing corresponding test blocks, setting different unevenness on the surfaces of the test blocks of the same type, applying uniform transverse and longitudinal pressure to the test block part of the main structure body, observing and recording waterproof layers made of different materials and the same material in different ways, and recording the maximum sedimentation amount which can be resisted at each node.
Preferably, the calculation formula of the thickness retention rate is as follows: f is equal to K/D and the total weight is less than the total weight of the whole system,
wherein f represents the thickness retention rate, K is the minimum thickness of the waterproof layer which is sheared and damaged, and D is the original thickness of the waterproof layer.
Preferably, the reliability R is calculated by the following formula: r ═ 1+ f. times.W × (Fc/5)2
Wherein f represents the thickness retention rate, W represents the displacement amount, and Fc represents the roughness of the rough surface.
Preferably, the step of manufacturing a plurality of test blocks with different unevenness at the same node part comprises the following steps: different unevenness degrees are arranged on the surface of the same test block in an increasing manner according to +1 mm.
As the preferred scheme, the test blocks manufactured at the underground node positions of the building comprise a protection wall test block, a deformation joint test block, a bottom plate test block and a cushion layer test block.
Preferably, the test block is formed by filling mortar in the mold and compacting.
According to another aspect of the invention, a method for testing the capability of a waterproof layer to resist underground engineering settlement damage is provided, and the method comprises the following steps:
step 1: selecting a test block, wherein a waterproof layer is attached to at least one surface of the test block;
step 2: fixing two ends of the test block on the fixing frame and the sliding frame respectively through positioning bolts, and arranging the waterproof layer along the horizontal direction or the vertical direction;
and step 3: starting a driving device, driving a sliding frame to vertically move through a compression beam, and recording displacement and form of shearing damage of a waterproof layer of a test block and the minimum thickness of the waterproof layer which is not subjected to shearing damage;
and 4, step 4: and calculating the thickness conservation rate and reliability of the waterproof layer of the test block.
Preferably, the calculation formula of the thickness retention is:
f＝K/D
wherein f represents the thickness retention rate, K is the minimum thickness of the waterproof layer which is sheared and damaged, and D is the original thickness of the waterproof layer.
Preferably, the reliability R is calculated by the formula:
R＝(1+f)×W×(Fc/5)2
wherein f represents the thickness retention rate, W represents the displacement amount, and Fc represents the roughness of the rough surface.
As the preferred scheme, the waterproof layer can be selected from modified asphalt waterproof coiled materials, polymer waterproof coiled materials and waterproof coating layers, and the number of layers and the thickness of the waterproof layer are different when the waterproof layer is attached.
The method comprises the steps of simulating the settlement process of the underground node position of the building, analyzing and calculating the tensile failure forms and bearing limits of the waterproof layers of different design methods on key positions such as a protective wall, a deformation joint, a bottom plate, a cushion layer and the like, evaluating the construction system of the existing waterproof layer, and evaluating the reliability of the waterproof layers with different thicknesses.
Example 1
Fig. 1 is a schematic structural diagram of a mold assembly according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of a protection wall preform manufactured by a test block manufacturing method according to an embodiment of the present invention, and fig. 3 is a schematic structural diagram of a test block manufactured by a structural wall according to an embodiment of the present invention.
As shown in fig. 1, a mold assembly according to an embodiment of the present invention includes:
the four detachable surrounding plates 1 are sequentially connected to form a rectangular groove-shaped body 2;
a plurality of bottom plates 3, every bottom plate 3 can set up in the bottom of the trough body 2 detachably, and the upper surface of every bottom plate 3 has different surface irregularities, and surface irregularities is 0 ~ 10mm to the preparation has the test block 4 of different surface irregularities.
As shown in fig. 2 and 3, the method for manufacturing the structural wall test block by using the mold assembly comprises the following steps:
step 1: a bottom plate 3 is arranged at the bottom of the trough body 2;
step 2: filling the prepared mortar into the groove-shaped body 2 and compacting and forming to form a primary test block;
and step 3: the preliminary test piece was taken out from the groove-like body 2, and a water-repellent layer 5 was attached to the rough surface of the preliminary test piece, which was in contact with the upper surface of the bottom plate 3 in step 1.
And 4, step 4: and 3, after the step 3 is finished, putting the test block 4 with the waterproof layer 5 attached to the rough surface into the groove-shaped body 2, enabling the waterproof layer to face upwards, filling the prepared mortar on the upper surface of the waterproof layer 5, and compacting and forming.
And 5: repeating the steps 1 to 4 for multiple times, and gradually increasing the surface unevenness of the upper surface of the bottom plate 3 selected each time by 1 mm. The unevenness is respectively set to be 3mm, 4mm and 5mm, and the anti-settling capacity of the same or different waterproof layers under the condition of certain unevenness is respectively tested and contrasted.
The waterproof layer 6 can be selected from modified asphalt waterproof coiled materials, polymer waterproof coiled materials or waterproof coating layers.
Example 2
FIG. 4 shows a schematic view of an L-shaped corner test block manufacturing process according to one embodiment of the present invention.
As shown in fig. 4, four detachable enclosing plates 1 are sequentially connected to form a rectangular trough-shaped body 2;
a plurality of bottom plates 3, every bottom plate 3 can set up in the bottom of the trough body 2 detachably, and the upper surface of every bottom plate 3 has different surface irregularities, and surface irregularities is 0 ~ 10mm to the preparation has the test block 4 of different surface irregularities.
The mould subassembly still includes cuboid 5, and the length of cuboid 5 is the same with the length of trough-shaped body 2, and the height that highly is less than trough-shaped body 2 of cuboid 5, and the width of cuboid 5 is less than the width of trough-shaped body 2, and cuboid 5 can detachably set up in trough-shaped body 2, and the up end of the upper surface of cuboid 5 aligns with the up end of trough-shaped body 2 to make L type bight test block.
The manufacturing method of the L-shaped corner test block by utilizing the die assembly comprises the following steps:
step 1: a bottom plate 3 with the unevenness degree of 0 is arranged at the bottom of the groove-shaped body 2;
step 2: arranging a cuboid 5 in the groove-shaped body 2, wherein the upper surface of the cuboid 5 is aligned with the upper end surface of the groove-shaped body 2, one surface of the cuboid 5 is opposite to the upper surface of the bottom plate 3, and a gap is formed between the other surface of the cuboid 5 and one detachable enclosing plate 1;
and step 3: filling the prepared mortar into the groove-shaped body 2 and compacting and forming to form a primary test block;
and 4, step 4: a preliminary test piece is taken out from the inside of the trough-like body 2, and a waterproof layer 6 is attached to the inner surface thereof.
And 5: and (3) repeating the steps 1 to 3 for multiple times, wherein the surface unevenness of the upper surface of the bottom plate 3 selected each time is gradually increased by 1 mm. The unevenness is respectively set to be 3mm, 4mm and 5mm, and the anti-settling capacity of the same or different waterproof layers under the condition of certain unevenness is respectively tested and contrasted. The waterproof layer 6 can be selected from modified asphalt waterproof coiled materials, polymer waterproof coiled materials or waterproof coating layers.
Example 3
Fig. 5 shows a structural diagram of a test device for the capability of a waterproof layer to resist the settlement damage of underground works according to an embodiment of the present invention, fig. 6 shows a right side view of the test device for the capability of a waterproof layer to resist the settlement damage of underground works according to an embodiment of the present invention, and fig. 7 shows a left side view of the test device for the capability of a waterproof layer to resist the settlement damage of underground works according to an embodiment of the present invention.
There is provided a test apparatus for testing the ability of a waterproofing layer to resist the settlement failure of underground works, the apparatus comprising: the test block fixing frame 7 is L-shaped, a rectangular test block frame 14 is arranged at the upper part of the test block fixing frame 7, and the rectangular test block frame 14 is used for fixing one end of a test block; the sliding frame 8 is concave, the opening of the concave faces the test block fixing frame 7 and is horizontally arranged, and the sliding frame 8 is used for fixing the other end of the test block; and a pressing beam member including a pressing beam 9 and a driving means (not shown) for driving the pressing beam to vertically move, the pressing beam 9 being disposed on an upper portion of the carriage 8 and connected to the carriage 8. The test block is fixed to the rectangular test block frame 13 and the carriage 8 by fastening bolts 10.
The test block fixing frame further comprises a base 11, and the L-shaped transverse edge is fixed on the base 11, so that the test block fixing frame 4 is stably arranged on the base 11. The sliding rack is characterized by further comprising a pair of sliding rod assemblies, the pair of sliding rod assemblies are vertically arranged on two sides of the sliding rack 8, and each sliding rod assembly comprises a sliding rod 12 arranged on the base 11 and a sliding cylinder 13 slidably sleeved on the sliding rod 12.
Example 4
According to the test method for testing the capability of the waterproof layer for resisting the settlement damage of the underground engineering, the method comprises the following steps:
step 1: selecting a test block 4, wherein the test block 4 comprises at least one rough surface, and a waterproof layer 6 is attached to each rough surface;
step 2: fixing two ends of the test block on the fixed frame 7 and the sliding frame 8 respectively through positioning bolts 10, and arranging the waterproof layer along the horizontal direction or the vertical direction;
and step 3: and starting a driving device, driving the sliding frame 8 to vertically move through the pressing beam 9, and recording the displacement and the form of the shearing damage of the waterproof layer 6 of the test block 4 and the minimum thickness of the waterproof layer 6 which is not subjected to the shearing damage.
And 4, step 4: further comprising:
repeating the steps 1 to 3 for multiple times, and the step 5: repeating the steps 1 to 3 for multiple times, and gradually increasing the surface unevenness of the upper surface of the bottom plate 3 selected each time by 1 mm.
The unevenness is respectively set to be 3mm, 4mm and 5mm, and the anti-settling capacity of the same or different waterproof layers under the condition of certain unevenness is respectively tested and contrasted.
The waterproof layer can be selected from modified asphalt waterproof coiled material, polymer waterproof coiled material or waterproof coating layer.
And calculating the thickness retention rate and reliability of the waterproof layer corresponding to the test block under different unevenness conditions.
The calculation formula of the thickness retention rate is as follows: and f is K/D, wherein f represents the thickness retention rate, K is the minimum thickness of the waterproof layer which is sheared and damaged, and D is the original thickness of the waterproof layer.
The reliability R is calculated by the formula: r ═ 1+ f. times.W × (Fc/5)2Wherein f represents a thickness retention rate, W represents a displacement amount, and Fc represents unevenness of a rough surface.
To underground workersThe different types of materials commonly used in the process are numbered according to the letter A B C …, and the materials of the same type are divided into a part with different methods and thicknesses1A2A3… … letter numbers.
According to the conditions of being larger than 5mm, 4-5 mm, 3-4 mm and smaller than 3mm on the surface of the test block, through the test process, the following displacement/non-damage thickness change data after the test block of the waterproof material is damaged under the unevenness of Fc are obtained:
table 1 data table of displacement after destruction/thickness change without destruction of test block of waterproof material under unevenness of Fc
As in Table 1, the value of "O" indicates that the material was not cut, and the waterproof material was cut;
d 3-A1: expressed as the test block is attached to the surface of the test block A under the unevenness of 3mm1The waterproof layer of the material has the minimum thickness after the test block is sheared during testing.
FIG. 2 sets up a ladder diagram of the suitability of materials for anti-settling
Example 5
According to the test method for testing the capability of the waterproof layer for resisting the settlement damage of the underground engineering, the method comprises the following steps:
step 1: the test block 4 is selected, the waterproof layer 6 is attached to at least one surface of the test block 4, the waterproof layer 6 can be made of modified asphalt waterproof coiled materials, polymer waterproof coiled materials, waterproof coating layers and the like, and the waterproof layer 6 can be attached to different layers and different thicknesses.
Step 2: fixing two ends of the test block 4 on the fixed frame 7 and the sliding frame 8 respectively through positioning bolts 10, and arranging the waterproof layer 6 along the horizontal direction or the vertical direction;
and step 3: and starting a driving device, driving the sliding frame 8 to vertically move through the pressing beam 9, and recording the displacement and the form of the shearing damage of the waterproof layer 6 of the test block and the minimum thickness of the waterproof layer 6 which is not subjected to the shearing damage.
And 4, step 4: and calculating the thickness conservation rate and reliability of the waterproof layer 6 of the test block.
The calculation formula of the thickness retention rate is as follows:
f＝K/D
wherein f represents the thickness retention rate, K is the minimum thickness of the sheared and damaged waterproof layer, and D is the original thickness of the waterproof layer;
the reliability R is calculated by the formula:
R＝(1+f)×W×(Fc/5)2
wherein f represents the thickness retention rate, W represents the displacement amount, and Fc represents the roughness of the rough surface.
According to GB50108-2008 'underground engineering waterproof technical specification', waterproof products adopted by underground engineering are of five major categories, physical and mechanical performance indexes of different materials are respectively emphasized, and adopted construction methods are different. By combining the recommended practice of 88J6 waterproof atlas of underground engineering and the construction design practice commonly used in the current engineering, various materials are classified according to the following practice and are respectively brought into a test model for analysis.
TABLE 2 anti-settling applicability ladder table for different kinds of waterproof materials
Through the composite simulation of different waterproof materials, different waterproof layer structures and thicknesses, the comprehensive technical change characteristics of the large-surface waterproof layer, which are expressed along with the integral change of the structure, can be reflected.
1. And (3) simulating the settlement process of the underground node part of the building, and analyzing and calculating the tensile failure form and the bearing limit of the waterproof layers of different design methods on key parts such as a protective wall, a deformation joint, a bottom plate, a cushion layer and the like.
2. And evaluating the construction system of the existing waterproof layer, and evaluating the reliability of the waterproof layers with different thicknesses.
The underground engineering structure and the waterproof composite system are analyzed systematically, the waterproof layer damage principle of the key structural change damage part in the sedimentation process is simulated and verified, correct cognition is favorably formed on the building waterproof material and the construction system, and the development of the industry to standardization and standardization is promoted.
The underground engineering structure and the waterproof composite system are analyzed systematically, the waterproof layer damage principle of the key structural change damage part in the sedimentation process is simulated and verified, correct cognition is favorably formed on the building waterproof material and the construction system, and the development of the industry to standardization and standardization is promoted.
The problem that the market products are rich in types, but the contrast evaluation result aiming at specific engineering is lacked is solved. The development of domestic waterproof products is rapid in recent years, various waterproof products are continuously upgraded and improved, and novel waterproof materials are continuously emerged due to the benefit of the progress of modern chemical technology. At present, the common waterproof coiled materials and coatings in the market are more than ten types, the matched waterproof construction process and equipment are gradually improved, even if the problem of leakage of domestic engineering remains, the problems are not solved due to the abundance of materials and construction methods, the disorder competition of various waterproof products in the market, the difficulty in selection of customers and the disorder of engineering use conditions are caused, and a plurality of adverse factors are added to the current waterproof work.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (5)
1. A test method for the capability of a waterproof layer to resist underground engineering settlement damage is characterized by comprising the following steps:
the test block fixing frame is L-shaped, the upper part of the test block fixing frame is provided with a rectangular test block frame, and the rectangular test block frame is used for fixing one end of a test block;
the sliding frame is concave, an opening of the concave is towards the test block fixing frame and is horizontally arranged, and the sliding frame is used for fixing the other end of the test block;
the pressing beam component comprises a pressing beam and a driving device for driving the pressing beam to vertically move, and the pressing beam is arranged on the upper part of the sliding frame and connected with the sliding frame;
step 1: selecting a test block, wherein the test block comprises at least one rough surface, and a waterproof layer is attached to each rough surface;
step 2: fixing two ends of the test block on the fixed frame and the sliding frame respectively through positioning bolts, and arranging the waterproof layer along the horizontal direction or the vertical direction;
and step 3: starting a driving device, driving the sliding frame to vertically move through a pressing beam, and recording the displacement and the form of the shearing damage of the waterproof layer of the test block and the minimum thickness of the waterproof layer which is not subjected to the shearing damage;
further comprising:
repeating the steps 1 to 3 for multiple times, and selecting test blocks with different roughness of the rough surface each time;
calculating the thickness retention rate and reliability of the waterproof layer corresponding to the test block under different unevenness conditions;
the calculation formula of the thickness retention rate is as follows:
f＝K/D
wherein f represents the thickness retention rate, K is the minimum thickness of the sheared and damaged waterproof layer, and D is the original thickness of the waterproof layer;
the calculation formula of the reliability R is as follows:
R＝(1+f)×W×(Fc/5)2
wherein f represents the thickness retention rate, W represents the displacement amount, and Fc represents the roughness of the rough surface.
2. The method for testing the capability of a waterproof layer to resist the settlement failure of underground works according to claim 1, wherein the test block is fixed to the rectangular test block frame and the sliding frame by fastening bolts.
3. The method for testing the capability of a waterproof layer to resist the settlement failure of underground engineering according to claim 2, further comprising a base, wherein the transverse edge of the L-shaped test block fixing frame is fixed on the base.
4. The method for testing the capability of a waterproof layer to resist the settlement damage of underground engineering according to claim 3, further comprising a pair of slide bar assemblies, wherein the slide bar assemblies are vertically arranged on two sides of the sliding frame, and each slide bar assembly comprises a slide bar arranged on the base and a slide cylinder slidably sleeved on the slide bar.
5. The method for testing the capability of a waterproof layer to resist the settlement failure of underground works according to claim 4, wherein the sliding frame comprises a top plate, a side plate and a bottom plate which are connected in sequence, and the top plate and the bottom plate are connected with the sliding cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367104.0A CN109580385B (en) | 2018-11-16 | 2018-11-16 | Test equipment and test method for resisting underground engineering settlement damage of waterproof layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367104.0A CN109580385B (en) | 2018-11-16 | 2018-11-16 | Test equipment and test method for resisting underground engineering settlement damage of waterproof layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109580385A CN109580385A (en) | 2019-04-05 |
| CN109580385B true CN109580385B (en) | 2022-03-18 |
Family
ID=65922589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811367104.0A Active CN109580385B (en) | 2018-11-16 | 2018-11-16 | Test equipment and test method for resisting underground engineering settlement damage of waterproof layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109580385B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864979A (en) * | 2019-11-25 | 2020-03-06 | 深圳市卓宝科技股份有限公司 | Method for detecting high-temperature shear resistance of waterproof coiled material |
Citations (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1249391A1 (en) * | 1985-03-18 | 1986-08-07 | Военно-Инженерная Ордена Ленина Краснознаменная Академия Им.В.В.Куйбышева | Device for field determining of mechanical properties of ground |
| CN1515748A (en) * | 2003-01-09 | 2004-07-28 | 胡长顺 | Electric shearing instrument for waterproof layer of bridge floor |
| CN201199223Y (en) * | 2008-03-24 | 2009-02-25 | 山东省交通科学研究所 | Portable tester for interlayer cementing straight scissors for highway |
| CN101464239A (en) * | 2009-01-09 | 2009-06-24 | 长安大学 | Interlayer shear strength detecting instrument for asphalt pavement |
| CN201852751U (en) * | 2010-09-25 | 2011-06-01 | 江苏省交通科学研究院股份有限公司 | Shearing mould for pavement test specimen |
| CN202148539U (en) * | 2011-07-22 | 2012-02-22 | 上海建科结构新技术工程有限公司 | Composite waterproof structure using underground engineering waterproof leaking stoppage treatment and construction method |
| CN202903621U (en) * | 2012-11-21 | 2013-04-24 | 中国建材检验认证集团苏州有限公司 | Shear detector used for detecting shear strength of waterproof layer |
| CN203249836U (en) * | 2013-05-30 | 2013-10-23 | 吉林省交通科学研究所 | Bridge deck pavement shearing strength detecting device |
| CN203350137U (en) * | 2013-06-28 | 2013-12-18 | 赵之仲 | Test shear apparatus |
| CN104196060A (en) * | 2014-07-10 | 2014-12-10 | 河海大学 | CFG pile composite roadbed rubber spacer static load testing device and method |
| CN105675409A (en) * | 2016-03-31 | 2016-06-15 | 中国电建集团华东勘测设计研究院有限公司 | Integrated type rock mass structural surface direct shear apparatus and direct shear test method |
| CN106066393A (en) * | 2016-07-01 | 2016-11-02 | 山东交通学院 | A kind of end of the bridge sedimentation compensation dosage test device and method of testing |
| CN106644759A (en) * | 2016-12-02 | 2017-05-10 | 长安大学 | Shear fatigue test method for steel bridge asphalt pavement |
| CN106706436A (en) * | 2016-12-21 | 2017-05-24 | 北京交通大学 | Device for detecting water pressure resistance of rubber waterstop |
| JP2017088582A (en) * | 2015-11-17 | 2017-05-25 | 日本メナード化粧品株式会社 | Method of discriminating filling molding method in solid powder cosmetic |
| CN106786321A (en) * | 2017-02-22 | 2017-05-31 | 上海电力设计院有限公司 | Suitable for the prefabricated assembled cable trench in depression area |
| CN206233390U (en) * | 2016-11-23 | 2017-06-09 | 北京中联天盛建材有限公司 | A kind of waterproof wall body structure and watertight building |
| CN206573376U (en) * | 2016-12-23 | 2017-10-20 | 上海同科交通科技有限公司 | A kind of pavement structure interlayer shearing test device |
| CN107700301A (en) * | 2017-10-17 | 2018-02-16 | 徐丽丽 | A kind of ruggedized construction on express highway roadbed |
| CN207280881U (en) * | 2017-08-03 | 2018-04-27 | 张乐泷 | A kind of direct shear apparatus of the measure chemical contamination shear strength of soil based on technological service |
| KR101864590B1 (en) * | 2016-12-29 | 2018-06-05 | 세종대학교산학협력단 | Impact shear test apparatus. |
| RU180309U1 (en) * | 2018-01-29 | 2018-06-08 | Александр Сергеевич Кононенко | DEVICE FOR EVALUATING ADHESIONAL PROPERTIES OF SEALANTS BY SHEAR |
| CN207850842U (en) * | 2017-12-25 | 2018-09-11 | 台州市交通工程试验检测中心股份有限公司 | A kind of pressure-shear test machine |
| CN108760479A (en) * | 2018-07-06 | 2018-11-06 | 大连理工大学 | A kind of basal plane interlayer direct shear test fixture suitable for compressive load |
| CN208076296U (en) * | 2018-04-19 | 2018-11-09 | 河南工业大学 | Simulate the measuring device and its experimental box of subgrade deformation parameter under action of traffic loading |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004341465A (en) * | 2003-05-14 | 2004-12-02 | Obayashi Seiko Kk | High quality liquid crystal display device and its manufacturing method |
| JP5212219B2 (en) * | 2009-03-27 | 2013-06-19 | 住友ベークライト株式会社 | Optical waveguide structure, opto-electric hybrid board, and electronic device |
| CN203241034U (en) * | 2013-04-18 | 2013-10-16 | 长安大学 | Laser straight ruler flatness measuring instrument |
| CN106049538A (en) * | 2016-08-24 | 2016-10-26 | 中铁隧道勘测设计院有限公司 | Reverse-building-method underground engineering building envelope crown beam anti-floating node |
-
2018
- 2018-11-16 CN CN201811367104.0A patent/CN109580385B/en active Active
Patent Citations (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1249391A1 (en) * | 1985-03-18 | 1986-08-07 | Военно-Инженерная Ордена Ленина Краснознаменная Академия Им.В.В.Куйбышева | Device for field determining of mechanical properties of ground |
| CN1515748A (en) * | 2003-01-09 | 2004-07-28 | 胡长顺 | Electric shearing instrument for waterproof layer of bridge floor |
| CN201199223Y (en) * | 2008-03-24 | 2009-02-25 | 山东省交通科学研究所 | Portable tester for interlayer cementing straight scissors for highway |
| CN101464239A (en) * | 2009-01-09 | 2009-06-24 | 长安大学 | Interlayer shear strength detecting instrument for asphalt pavement |
| CN201852751U (en) * | 2010-09-25 | 2011-06-01 | 江苏省交通科学研究院股份有限公司 | Shearing mould for pavement test specimen |
| CN202148539U (en) * | 2011-07-22 | 2012-02-22 | 上海建科结构新技术工程有限公司 | Composite waterproof structure using underground engineering waterproof leaking stoppage treatment and construction method |
| CN202903621U (en) * | 2012-11-21 | 2013-04-24 | 中国建材检验认证集团苏州有限公司 | Shear detector used for detecting shear strength of waterproof layer |
| CN203249836U (en) * | 2013-05-30 | 2013-10-23 | 吉林省交通科学研究所 | Bridge deck pavement shearing strength detecting device |
| CN203350137U (en) * | 2013-06-28 | 2013-12-18 | 赵之仲 | Test shear apparatus |
| CN104196060A (en) * | 2014-07-10 | 2014-12-10 | 河海大学 | CFG pile composite roadbed rubber spacer static load testing device and method |
| JP2017088582A (en) * | 2015-11-17 | 2017-05-25 | 日本メナード化粧品株式会社 | Method of discriminating filling molding method in solid powder cosmetic |
| CN105675409A (en) * | 2016-03-31 | 2016-06-15 | 中国电建集团华东勘测设计研究院有限公司 | Integrated type rock mass structural surface direct shear apparatus and direct shear test method |
| CN106066393A (en) * | 2016-07-01 | 2016-11-02 | 山东交通学院 | A kind of end of the bridge sedimentation compensation dosage test device and method of testing |
| CN206233390U (en) * | 2016-11-23 | 2017-06-09 | 北京中联天盛建材有限公司 | A kind of waterproof wall body structure and watertight building |
| CN106644759A (en) * | 2016-12-02 | 2017-05-10 | 长安大学 | Shear fatigue test method for steel bridge asphalt pavement |
| CN106706436A (en) * | 2016-12-21 | 2017-05-24 | 北京交通大学 | Device for detecting water pressure resistance of rubber waterstop |
| CN206573376U (en) * | 2016-12-23 | 2017-10-20 | 上海同科交通科技有限公司 | A kind of pavement structure interlayer shearing test device |
| KR101864590B1 (en) * | 2016-12-29 | 2018-06-05 | 세종대학교산학협력단 | Impact shear test apparatus. |
| CN106786321A (en) * | 2017-02-22 | 2017-05-31 | 上海电力设计院有限公司 | Suitable for the prefabricated assembled cable trench in depression area |
| CN207280881U (en) * | 2017-08-03 | 2018-04-27 | 张乐泷 | A kind of direct shear apparatus of the measure chemical contamination shear strength of soil based on technological service |
| CN107700301A (en) * | 2017-10-17 | 2018-02-16 | 徐丽丽 | A kind of ruggedized construction on express highway roadbed |
| CN207850842U (en) * | 2017-12-25 | 2018-09-11 | 台州市交通工程试验检测中心股份有限公司 | A kind of pressure-shear test machine |
| RU180309U1 (en) * | 2018-01-29 | 2018-06-08 | Александр Сергеевич Кононенко | DEVICE FOR EVALUATING ADHESIONAL PROPERTIES OF SEALANTS BY SHEAR |
| CN208076296U (en) * | 2018-04-19 | 2018-11-09 | 河南工业大学 | Simulate the measuring device and its experimental box of subgrade deformation parameter under action of traffic loading |
| CN108760479A (en) * | 2018-07-06 | 2018-11-06 | 大连理工大学 | A kind of basal plane interlayer direct shear test fixture suitable for compressive load |
Non-Patent Citations (1)
| Title |
|---|
| 防水系统挂铺工艺在建筑地下室的应用探讨;王新;《中国建筑防水》;20030720(第7期);第14-16页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109580385A (en) | 2019-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111625888B (en) | Method for calculating residual bearing capacity of concrete T-shaped beam by considering influence of fire cracks | |
| Resta et al. | Non-linear finite element analysis of masonry towers by adopting the damage plasticity constitutive model | |
| CN111157346B (en) | Analysis system and method for design and correction of water curtain system of underground water-sealed oil storage | |
| Łątka et al. | The estimation of compressive stress level in brick masonry using the flat-jack method | |
| CN109580385B (en) | Test equipment and test method for resisting underground engineering settlement damage of waterproof layer | |
| CN104931331B (en) | A kind of Asphalt Pavement Construction Quality methods of testing and evaluating | |
| Alecci et al. | Numerical investigation on the use of flat-jack test for detecting masonry deformability | |
| Medeiros et al. | Innovation in flat-jack application to evaluate modern high-strength hollow concrete block masonry | |
| Pinho et al. | Performance of single and double flat jacks in stone masonry lab tests | |
| Gattesco et al. | Experimental and numerical study on the bending performances of glass FRP molded gratings: Influence of restraining conditions and cover plates | |
| CN115507808B (en) | Test device and method for simulating stress deformation characteristics of existing tunnel under construction condition of adjacent tunnel | |
| Wenkenbach | Tension stiffening in reinforced concrete members with large diameter reinforcement | |
| Mishra | Experimental and analytical studies on scrap tire rubber pads for application to seismic isolation of structures | |
| Lee et al. | Measurement of bar strain during pull-out tests: use of electrical resistance gauge methods under large displacement | |
| Souley et al. | Damage around a keyed URL excavation: change in permeability induced by microcracks growth | |
| Cameron | Analysis of buried flexible pipes in granular backfill subjected to construction traffic | |
| Al Ajami | Punching shear of concrete flat slabs reinforced with fibre reinforced polymer bars | |
| Roberts | The effect of different test procedures upon the indicated strength of concrete blocks in compression | |
| CN209311191U (en) | For making the die assembly of building underground position of joints test block | |
| Li | Spatial Variability and Stochastic Strength Prediction of Unreinforced Masonry Walls Subjected to Out-of-Plane Bending | |
| Hoult et al. | Displacement capacity of lightly reinforced rectangular concrete walls | |
| Koodiani et al. | Validation of ACI 369.1 Code Nonlinear Modeling Parameters Using Non-Ductile Reinforced Concrete Building. | |
| CN114969940B (en) | Simulation prediction method for transverse crack coefficient of asphalt pavement based on energy principle | |
| CN221650046U (en) | Device for detecting surface density and bending load resistance of partition plate for building | |
| Dilena et al. | M.; Gubana, A.; Morassi, A.; Puntel, E. Dynamic Testing in Support of the Seismic Assessment of a Century Old Masonry Building Complex. Buildings 2022, 12, 805 |
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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240206 Address after: 101309 Sha Ling section 2, Shunping Road, Shunyi District, Beijing Patentee after: Starfaith (Beijing) building materials testing Co.,Ltd. Country or region after: China Address before: 101309 Sha Ling section 2, Shunping Road, Shunyi District, Beijing Patentee before: BEIJING ORIENTAL YUHONG WATERPROOF TECHNOLOGY Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |