CN205449666U - Test device of simulation anti -floating anchor rod - concrete slab integrated configuration - Google Patents
Test device of simulation anti -floating anchor rod - concrete slab integrated configuration Download PDFInfo
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- CN205449666U CN205449666U CN201521133046.7U CN201521133046U CN205449666U CN 205449666 U CN205449666 U CN 205449666U CN 201521133046 U CN201521133046 U CN 201521133046U CN 205449666 U CN205449666 U CN 205449666U
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- concrete slab
- reinforcing bar
- supporting plate
- anchor pole
- lower supporting
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Abstract
The utility model relates to a test device of simulation anti -floating anchor rod - concrete slab integrated configuration, including load -bearing device, load -bearing device includes the skeleton, and the skeleton upper end is provided with the last backup pad of skeleton upward movement relatively, and the inside lower extreme of skeleton is provided with and is provided with transmission load's force transfer device and the force applying device who exerts load between upper and lower backup pad for the bottom suspension fagging of skeleton up -and -down motion, the last testing arrangement that still is provided with of load -bearing device. Can verify different stock planar arrangement, concrete slab geometric parameters, design parameters such as strength of material, make the collaborative work of stock and concrete slab integrated configuration reach the best, the load of device applys to provide with the counter -force has self -balancing system characteristic, need not additional extra counter -force balancing unit, the integrated configuration has been simulated out at the anti displacement of stock up -pull and the concrete slab vertical displacement who exists in doing the time spent collaborative work that float of performance, adopt the equipment form, the manufacture is facilitated, the transportation, equipment and experiment work.
Description
Technical field:
This utility model belongs to technical field of civil engineering, particularly relates to a kind of assay device simulating anti-float anchor rod-concrete slab combinative structure.
Background technology:
Environmentally friendly deep basal pit Construction Problems is the sustainable development problem that field of civil engineering is important, and therefore new structural systen, new design theory, new construction etc. have obtained the great attention of government department, experts and scholars.The construction of deep basal pit all the time follows levelling of the land, support construction, dewatering construction, pit earthwork excavation, the process of Underground Construction, its dewatering construction will for a long time, groundwater abstraction in large quantities, waste substantial amounts of groundwater resources, break original groundwater balance, cause the differential settlement of periphery earth's surface, building, underground utilities, occur in that more serious engineering accident.Province, China multiple central and east has carried out strict restriction to recovery of subterranean water resource at present, not only increases the face cost of water resource, even defined area and forbids exploitation, and this just proposes the strictest environmental condition to the deep foundation pit construction of field of civil engineering.
Anti-float anchor rod-concrete slab combinative structure is a part for current a kind of novel system of deep foundation pit support without precipitation, this structure is positioned at bottom deep basal pit, form one with foundation pit side-wall and close aqueous systems, the excavation of pit earthwork can be carried out under the conditions of not implementing dewatering operation, solve environmentally friendly deep basal pit Construction Problems greatly.The mechanism of anti-float anchor rod-concrete combined structure effect is: by the withdrawal resistance of anti-float anchor rod and the buoyancy of concrete floor deadweight common opposing Groundwater formation and earthwork off-load, meanwhile, its power transmission process is exactly the work process of anti-float anchor rod and concrete slab work compound.But affected by ground and concrete material heterogeneous body, strength non-linearity and anti-floating effect collaborative work feature, need the design parameter of anti-float anchor rod, concrete slab is carried out associated verification test, with ensure new structural systen design of deep foundation pit, construct, use in safety requirements.Accordingly, it would be desirable to a kind of assay device simulating anti-float anchor rod-concrete slab combinative structure and test method, anti-float anchor rod-concrete slab combinative structure is verified.
Utility model content:
The deficiency existed for prior art, this utility model provides a kind of assay device simulating anti-float anchor rod-concrete slab combinative structure, being used for studying the force-mechanism of the anti-float anchor rod-concrete combined structure under buoyancy, whether checking anti-float anchor rod, the design parameter of concrete slab meet actual construction safety sexual demand.
To achieve these goals, this utility model adopts the following technical scheme that,
A kind of assay device simulating anti-float anchor rod-concrete slab combinative structure of this utility model, including load carrier, described load carrier includes skeleton, skeleton upper end is provided with upper backup pad, upper backup pad can move upward skeleton upper surface relatively, the lower end of skeletal internal is provided with lower supporting plate, and lower supporting plate can move up and down relative to skeleton at skeletal internal, is provided with load transfer device and force application apparatus between upper and lower gripper shoe；Described load transfer device includes that support plate and a square steel, many square steel one end are fixed in a support plate, and the other end is held in the lower surface of upper backup pad；Described force application apparatus includes jack and pressure transducer, and jack is placed on lower supporting plate, and pressure transducer one end is arranged on the top of jack, and the other end is inconsistent with the lower surface of a support plate；Test device it is additionally provided with on described load carrier；Described test device includes concrete slab, anchor pole reinforcing bar and spring, offer through hole described upper backup pad is corresponding with on lower supporting plate, anchor pole reinforcing bar is inserted in through described through hole, between lower supporting plate, described anchor pole reinforcing bar lower end is provided with screw thread, anchor pole reinforcing bar and lower supporting plate upper surface contact jaw are provided with the first nut, anchor pole reinforcing bar is fixed on lower supporting plate upper surface, anchor pole reinforcing bar is carried out spacing, anchor pole reinforcing bar stretches out lower supporting plate part and is provided with the second nut, it is set with spring on anchor pole reinforcing bar between lower supporting plate lower surface and the second nut, by the second nut, the intensity of spring is controlled, anchor pole reinforcing bar stretches out upper backup pad part and is cast with concrete slab, anchor pole reinforcing bar pours with concrete slab and is structure as a whole.
Described skeleton is welded to form by the long struts such as four, and column upper section is provided with four girder steels, and upper backup pad is placed on girder steel, and described lower supporting plate bottom is provided with cushion block, in order to support lower supporting plate.
Described upper backup pad and lower supporting plate are steel plate.
Described square steel is 8, tilts 60 °～75 ° to arrangement, formation umbrella force transferring structure, square steel relative to propping up support plate axial line last week at a support plate.
Described jack is manual type screw jack.
Being matched in clearance between described through hole and anchor pole reinforcing bar, the diameter of through hole is more than anchor pole bar diameter 2～4mm.
Described spring one end is fixed in lower supporting plate lower surface, and the other end is fixed in the second nut.
The skeleton surrounding of described load carrier installs steel wire additional, steel wire offers an opening, loads for jack.
The beneficial effect of a kind of assay device simulating anti-float anchor rod-concrete slab combinative structure of this utility model:
1. solve design parameter checking and the Optimization Work of anti-float anchor rod in design of deep foundation pit-concrete slab combinative structure, can verify that the design parameters such as different anchor pole horizontal layout, concrete slab geometric parameter, the strength of materials so that the collaborative work of anchor pole and concrete slab combinative structure reaches optimal；
2. device uses manual type screw jack to load, by umbrella force transmission mechanism uniformly to upper steel plate and concrete slab power transmission, counter-force is to spring-compressed by lower steel plate, then anchor pole reinforcing bar it is applied to, load applies and counter-force provides and has self equilibrium systems feature, it is not necessary to the counter-force bascule outside plus；
3. outside the anchor pole reinforcing bar below lower supporting plate, add sleeve spring, use nut spring, anchor pole reinforcing bar, lower supporting plate three to be fixed, simulate new composite structure anchor pole uplift displacement when playing anti-floating effect in the presence of collaborative work and concrete slab vertical displacement；
4. device uses assembling form, it is simple to makes, transport, assemble and experiment work.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of a kind of assay device simulating anti-float anchor rod-concrete slab combinative structure；
Fig. 2 is the top view of upper backup pad；
Fig. 3 is the top view of load transfer device；
1-skeleton, 2-girder steel, 3-upper backup pad, 4-lower supporting plate, 5-cushion block, 6-props up support plate, 7-square steel, 8-jack, 9-pressure transducer, 10-concrete slab, 11-anchor pole reinforcing bar, 12-spring, 13-the first nut, 14-the second nut, 15-displacement dial gauge, 16-through hole.
Detailed description of the invention:
Below in conjunction with embodiment, the utility model is described in further detail.
According to Fig. 1～Fig. 2, a kind of assay device simulating anti-float anchor rod-concrete slab combinative structure, including load carrier, load carrier is provided with load transfer device, force application apparatus and test device.
nullDescribed load carrier includes skeleton 1，Described skeleton 1 is welded to form by the long struts such as four，Column upper section is provided with four girder steels 2，Upper backup pad 3 is placed on girder steel 2，Upper backup pad 3 can move upward skeleton 1 upper surface relatively，Skeleton 1 interior lower end is provided with lower supporting plate 4，Lower supporting plate 4 bottom is provided with cushion block 5，In order to support lower supporting plate 4，Lower supporting plate 4 can move up and down relative to girder steel 2 in skeleton 1 inside，Upper、Load transfer device and force application apparatus it is provided with between lower supporting plate，In the present embodiment，Length × width × height=103 × 103 of load carrier × 91cm，Pillar and girder steel 2 all use 5 × 5cm square steel 7，Upper backup pad 3 and lower supporting plate 4 are No. 3 steel plates that 10mm is thick，On、The length of lower supporting plate × wide=103 × 103cm，Cushion block 5 uses steel iron block，It is highly 50mm.
Described load transfer device includes support plate 6 and a square steel 7, and described square steel 7 one end is welded in a support plate 6, and the other end is held in the lower surface of upper backup pad 3, in the present embodiment, as it is shown on figure 3, square steel 7 is 8, a length of 50cm of square steel 7, square steel 7 is 75 ° relative to a support plate 6 axial line angle of inclination, circumferential array on a support plate 6, forms umbrella force transferring structure, and square steel 7 lower end is welded in a support plate 6, upper end is held in the lower surface of upper backup pad 3, and single square steel 7 contact surface area is not less than 50cm2, square steel 7 top enclose set formation large round plane, circular flat sectional dimension is 50cm2, a support plate 6 uses the steel plate of length × wide=10 × 10cm.
Described force application apparatus includes jack 8 and pressure transducer 9, jack 8 is placed on lower supporting plate 4, pressure transducer 9 one end is arranged on the top of jack 8, the other end is inconsistent with the lower surface of a support plate 6, it is further applied load to load transfer device, in the present embodiment, described jack 8 is hand power screw formula jack 8, model is QL5, and maximum lifting weight is 5 tons, range 135mm, described pressure transducer 9 is resistance strain type pressure sensor 9, model is YBY-30, and maximum range is 30kN, and precision is 0.3kN.
nullDescribed test device includes concrete slab 10、Anchor pole reinforcing bar 11 and spring 12，In the present embodiment，The described upper backup pad 3 diagonal with lower supporting plate 4 offers the through hole 16 of a diameter of 12mm，On and、On lower supporting plate, through hole 16 position is corresponding，Anchor pole reinforcing bar 11 is inserted in through described through hole 16、Between lower supporting plate，It is matched in clearance between described through hole 16 and anchor pole reinforcing bar 11，The diameter of through hole 16 is more than anchor pole reinforcing bar 11 diameter 2mm，Described anchor pole reinforcing bar 11 lower end is provided with screw thread，Or it is welded with screw rod in anchor pole reinforcing bar 11 lower end，Anchor pole reinforcing bar 11 and lower supporting plate 4 upper surface contact jaw are provided with the first nut 13，Anchor pole reinforcing bar 11 is fixed on lower supporting plate 4 upper surface，Anchor pole reinforcing bar 11 is carried out spacing，Anchor pole reinforcing bar 11 stretches out lower supporting plate 4 part and is provided with the second nut 14，It is set with spring 12 on anchor pole reinforcing bar 11 between lower supporting plate 4 lower surface and the second nut 14，Spring 12 one end is fixed in lower supporting plate 4 lower surface，The other end is fixed in the second nut 14，By the second nut 14, the intensity of spring 12 is controlled，Anchor pole reinforcing bar 11 stretches out upper backup pad 3 part and is cast with concrete slab 10，Anchor pole reinforcing bar 11 pours with concrete slab 10 and is structure as a whole，In the present embodiment，Spring 12 diameter 2cm，Length 5cm，Rigidity 1750kN/m，Anchor pole reinforcing bar 11 uses the reinforcing bar of a diameter of 10mm，Its end welding screw rod is same diameter screw.
Using the test method that the assay device of above-mentioned simulation anti-float anchor rod-concrete slab combinative structure is carried out, it specifically comprises the following steps that
Step 1: choosing and the preparation of device of test site
1.1 select the laboratory with ground terminal, clean out the smooth location of 40 square metres；
1.2, according to the design parameter of anti-float anchor rod-concrete slab combinative structure, determine concrete slab thickness, anchor spacing and anchor pole reinforcing bar 11 diameter dimension by certain geometric proportion.
Step 2: install test block on assay device
nullLoad carrier is placed in test site central authorities by 2.1，Anchor pole reinforcing bar 11 is used sand papering，Remove surface and oil contaminant and oxide layer，Ensure that it plays fully with the bond stress of concrete contact portion，Then anchor pole reinforcing bar 11 is plugged in upper backup pad 3 through through hole 16、Between lower supporting plate 4，Anchor pole reinforcing bar 11 and lower supporting plate 4 upper surface contact jaw are provided with the first nut 13，Anchor pole reinforcing bar 11 is carried out spacing，Anchor pole reinforcing bar 11 stretches out lower supporting plate 4 part and is provided with the second nut 14，And it is set with spring 12 on the anchor pole reinforcing bar 11 between lower supporting plate 4 lower surface and the second nut 14，Spring 12 is to simulate collaborative work that under buoyancy, anti-float anchor rod and concrete slab occur and the displacement on vertical thereof，By the second nut 14, spring 12 is compressed，The rigidity adjusting spring 12 meets the requirement of test，The rigidity of spring 12 is to play the shift value required for ultimate pullout capacity by anti-float anchor rod and one-dimensional Hooke's law elastic solution calculates and obtains，Selected spring 12 rigidity then needs 2～3 times more than calculated rigidity，Anchor pole reinforcing bar 11 with on、The contact position coating lubricating oil of lower supporting plate；
The upper surface of upper backup pad 3, anchor pole reinforcing bar 11 are stretched out upper backup pad 3 part sand papering, acetone cleaning by 2.2, equidistantly lay multiple foil gauges, by cementing for described foil gauge fixing, closing water-proofing treatment, and by the p-wire extraction of foil gauge；
2.3 lay and fixed building template, use wide adhesive tape closure spillage point in upper backup pad 3 upper surface surrounding, match ratio according to test required concrete slab requirement of strength design concrete slab composition material, and requiring that anchor pole reinforcing bar 11 is stretched out upper backup pad 3 part carries out concreting and maintenance according to concrete construction process so that anchor pole reinforcing bar 11 pours with concrete slab 10 and is structure as a whole；
Anchor pole reinforcing bar 11 is stretched out upper backup pad 3 part and carries out concreting and maintenance, and anchor pole reinforcing bar 11 stretches into the half not less than concrete slab 10 thickness of the length in concrete slab 10, the most prefabricated three groups of concrete test blocks, often organize three block concrete test blocks, three groups of prefabricated concrete test blocks are made a strength test, when concrete test block intensity meets the requirement of test, carries out follow-up test, otherwise, need again to prepare concrete slab 10；
Concrete slab 10 upper surface sand papering, acetone are cleaned by 2.4, equidistantly lay multiple foil gauges, and blend compounds knot is fixing, close water-proofing treatment, is drawn by the p-wire of foil gauge.
Step 3: test loads and prepares
The building template that 3.1 dismantling concrete plate 10 surroundings are fixing；
3.2, at upper backup pad 3 lower surface and lower supporting plate 4 upper surface, make center respectively, lay jack 8 in lower supporting plate 4 center, and adjust jack 8 center and upper and lower gripper shoe 4 center superposition, then lay pressure transducer 9 on jack 8；
Load transfer device is installed between pressure transducer 9 and upper backup pad 3 by 3.3, pressure transducer 9 is held in support plate 6 lower surface of load transfer device, and the upper end of the square steel 7 of load transfer device is held in the lower surface of upper backup pad 3, the steel plate washer of different-thickness can also be used between the lower surface of square steel 7 and upper backup pad 3, ensure that square steel 7 upper end is in close contact with the lower surface of upper backup pad 3, it is ensured that the uniform force of concrete slab 10 bottom surface；
The connecting line of the connecting line of foil gauge, pressure transducer 9 is external in Dynamic Data Acquiring instrument by 3.4, meanwhile, load carrier connects ground terminal, opens Dynamic Data Acquiring instrument, by the zeros data of Dynamic Data Acquiring instrument；
3.5 at the two ends of concrete slab 10 upper surface diagonal positions, lay two pieces of displacement dial gauges 15, are returned to zero by displacement dial gauge 15, record initial displacement reading, and described displacement dial gauge 15 uses mechanical type variation table, and certainty of measurement is 0.01mm；
Skeleton 1 surrounding at load carrier installs steel wire additional, steel wire offers an opening, loads for manual type screw jack 8.
Step 4: process of the test:
4.1 design total loading capacity according to anchor pole reinforcing bar withdrawal resistance and concrete slab deadweight, and single anchor rod reinforcing bar withdrawal resistance calculates according to formula (1)
Pw=β π RH τ (1)
In formula, PwFor anchor pole axial tension design load；R is bar diameter；H is concrete slab thickness；τ is the tensile strength design load of reinforcing bar and concrete interface material；β is the shear stress breadth coefficient along anchoring section, takes 0.85；
Concrete slab 10 is conducted oneself with dignity and is calculated according to formula (2)
G=γCAH(2)
In formula, G is concrete slab 10 gravity design load；γcFor concrete slab severe；A is concrete slab floor space；H is concrete slab thickness；
The loading total amount of the design of test calculates according to formula (3)
P=G+4Pw(3)
In formula, P loads total amount for design；
4.2 are shown by the pressure value of pressure transducer 9, loading capacity is controlled, load step by step, single-stage loading capacity is 1/10th of anchor pole reinforcing bar 11 withdrawal resistance, and load the total amount design loading total amount less than 1.1 times, the displacement at record concrete slab diagonal two ends, preserves strain acquirement data；
4.3 load stabilization times were 15 minutes, when the foil gauge test failure of anchor pole reinforcing bar 11 occur, or during the situation such as anchor pole reinforcing bar 11 and concrete slab 10 disengaging, terminated loading；
4.4 pairs of data gathered arrange, and obtain ultimate bearing force value.
For concrete example, in the present embodiment, using in test concrete sealing bottom plate thickness is 20cm, when the combinative structure selecting anchor bar steel muscle spacing to be 30cm is tested, concrete slab thickness and anchor pole reinforcing bar gap ratio ξ=0.67, the results are shown in Table 1, A-is upper is the A anchor pole reinforcing bar foil gauge measuring point at concrete sealing bottom plate internal upper part, is A anchor pole reinforcing bar foil gauge measuring point of bottom in concrete sealing bottom plate under A-:
Table 1 anti-float anchor rod spacing is anchor pole reinforcing bar and the pressure sensor data collection of 30cm
As known from Table 1, combinative structure for concrete slab thickness Yu the anti-float anchor rod-concrete sealing bottom of anchor pole reinforcing bar gap ratio ξ=0.67, from data it can be seen that, anchor pole reinforcing bar showed as stress before 16 grades of loads and increases, the wave phenomenon increasing and reducing occurs after 17 grades of loads, the ultimate load that structure is described is 5.418kN, and structure enters failure stage thereafter；And in table it can be seen that, the stress of anchor pole reinforcing bar is to reach capacity bearing capacity at the 15th grade of load, it is slightly less than the ultimate load that pressure sensor data represents, show during power transmission, structure reaches capacity before load, anti-float anchor rod and concrete slab show preferable collaborative work, meet the demand of actual job.
Finally should be noted that: above example is only in order to illustrate that the technical solution of the utility model is not intended to limit, although this utility model being described in detail with reference to above-described embodiment, those of ordinary skill in the field are it is understood that still can modify or equivalent to detailed description of the invention of the present utility model, and without departing from any amendment of this utility model spirit and scope or equivalent, it all should be contained in the middle of present claims scope.
Claims (8)
1. the assay device simulating anti-float anchor rod-concrete slab combinative structure, it is characterized in that: include load carrier, described load carrier includes skeleton, skeleton upper end is provided with upper backup pad, upper backup pad can move upward skeleton upper surface relatively, the lower end of skeletal internal is provided with lower supporting plate, and lower supporting plate can move up and down relative to skeleton at skeletal internal, is provided with load transfer device and force application apparatus between upper and lower gripper shoe；Described load transfer device includes that support plate and a square steel, many square steel one end are fixed in a support plate, and the other end is held in the lower surface of upper backup pad；Described force application apparatus includes jack and pressure transducer, and jack is placed on lower supporting plate, and pressure transducer one end is arranged on the top of jack, and the other end is inconsistent with the lower surface of a support plate；Test device it is additionally provided with on described load carrier；Described test device includes concrete slab, anchor pole reinforcing bar and spring, offer through hole described upper backup pad is corresponding with on lower supporting plate, anchor pole reinforcing bar is inserted in through described through hole, between lower supporting plate, described anchor pole reinforcing bar lower end is provided with screw thread, anchor pole reinforcing bar and lower supporting plate upper surface contact jaw are provided with the first nut, anchor pole reinforcing bar is fixed on lower supporting plate upper surface, anchor pole reinforcing bar is carried out spacing, anchor pole reinforcing bar stretches out lower supporting plate part and is provided with the second nut, it is set with spring on anchor pole reinforcing bar between lower supporting plate lower surface and the second nut, by the second nut, the intensity of spring is controlled, anchor pole reinforcing bar stretches out upper backup pad part and is cast with concrete slab, anchor pole reinforcing bar pours with concrete slab and is structure as a whole.
A kind of assay device simulating anti-float anchor rod-concrete slab combinative structure the most according to claim 1, it is characterized in that: described skeleton is welded to form by the long struts such as four, column upper section is provided with four girder steels, upper backup pad is placed on girder steel, described lower supporting plate bottom is provided with cushion block, in order to support lower supporting plate.
A kind of assay device simulating anti-float anchor rod-concrete slab combinative structure the most according to claim 1, it is characterised in that: described upper backup pad and lower supporting plate are steel plate.
A kind of assay device simulating anti-float anchor rod-concrete slab combinative structure the most according to claim 1, it is characterized in that: described square steel is 8,60 °～75 ° were tilted to arrangement, formation umbrella force transferring structure, square steel relative to propping up support plate axial line last week at a support plate.
A kind of assay device simulating anti-float anchor rod-concrete slab combinative structure the most according to claim 1, it is characterised in that: described jack is manual type screw jack.
A kind of assay device simulating anti-float anchor rod-concrete slab combinative structure the most according to claim 1, it is characterised in that: being matched in clearance between described through hole and anchor pole reinforcing bar, the diameter of through hole is more than anchor pole bar diameter 2～4mm.
A kind of assay device simulating anti-float anchor rod-concrete slab combinative structure the most according to claim 1, it is characterised in that: described spring one end is fixed in lower supporting plate lower surface, and the other end is fixed in the second nut.
A kind of assay device simulating anti-float anchor rod-concrete slab combinative structure the most according to claim 1, it is characterised in that: the skeleton surrounding at described load carrier installs steel wire additional, steel wire offers an opening, loads for jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521133046.7U CN205449666U (en) | 2015-12-30 | 2015-12-30 | Test device of simulation anti -floating anchor rod - concrete slab integrated configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521133046.7U CN205449666U (en) | 2015-12-30 | 2015-12-30 | Test device of simulation anti -floating anchor rod - concrete slab integrated configuration |
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| Publication Number | Publication Date |
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| CN205449666U true CN205449666U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521133046.7U Withdrawn - After Issue CN205449666U (en) | 2015-12-30 | 2015-12-30 | Test device of simulation anti -floating anchor rod - concrete slab integrated configuration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651604A (en) * | 2015-12-30 | 2016-06-08 | 中冶沈勘工程技术有限公司 | Experimental device and experimental method for simulating anti-floating anchor-concrete plate composite structure |
-
2015
- 2015-12-30 CN CN201521133046.7U patent/CN205449666U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651604A (en) * | 2015-12-30 | 2016-06-08 | 中冶沈勘工程技术有限公司 | Experimental device and experimental method for simulating anti-floating anchor-concrete plate composite structure |
| CN105651604B (en) * | 2015-12-30 | 2018-03-06 | 中冶沈勘工程技术有限公司 | Simulate the experimental rig and test method of anti-float anchor rod concrete slab combining structure |
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| GR01 | Patent grant | ||
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Granted publication date: 20160810 Effective date of abandoning: 20180306 |