CN109374388A - For the device and application method of Model Pile position to be accurately positioned in the test of Model Pile load-bearing - Google Patents
For the device and application method of Model Pile position to be accurately positioned in the test of Model Pile load-bearing Download PDFInfo
- Publication number
- CN109374388A CN109374388A CN201811406985.2A CN201811406985A CN109374388A CN 109374388 A CN109374388 A CN 109374388A CN 201811406985 A CN201811406985 A CN 201811406985A CN 109374388 A CN109374388 A CN 109374388A
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- Prior art keywords
- centralized positioning
- model pile
- height adjustment
- positioning clamp
- pile
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- 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
- G01N1/36—Embedding or analogous mounting of samples
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- 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
-
- 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
Abstract
The invention discloses a kind of for the device and application method of Model Pile position to be accurately positioned in the test of Model Pile load-bearing, and described device includes main body frame, considers the centralized positioning of Model Pile foozle and fixed system, Model Pile height adjusting system and laterally secure system；Centralized positioning and fixed system include centralized positioning clamp, and centralized positioning clamp, which has, divides valve infundibulate collet；The present invention realizes accurate positionin to Model Pile and lossless maintenance and dismounting, effectively increases later period test accuracy；Described device is tested by adjusting the case where height adjustment bolt can be directed to different build-in ratios, and is suitable for the experimental design of piles with different diameter, convenient for manufacturing, having a wide range of application.
Description
Technical field
The present invention relates to Model Pile positioning device and its application methods, more particularly to one kind is in the test of Model Pile load-bearing
The device and application method of Model Pile position is accurately positioned.
Background technique
In recent years, the construction project of more and more river-spanning bridge and super large scale of constructions over strait requires largely to use embedded rock pile
Huge upper load is undertaken as the basis of buildings or structures.The core of research embedded rock pile bearing capacity is to study stake and stake
Interaction and stake-rock interface failure mechanism of the rock mass of surrounding during pile body is by load；And want comprehensive research
Model Pile is by load pile-rock interfacial interaction process and plane of fracture development mechanism, it is desirable to on-test it
Before, Model Pile stake-rock interface in non-load-bearing is in intact state.Currently, observation stake-rock interfacial interaction process
And this kind of test of plane of fracture development mechanism is all studied using the artificial rock poured as carrier, purpose is exactly to realize reality
Pile-rock nature cement plane in the engineering of border.Therefore how implementation model stake controllable height placement, vibration to eliminate
Influence, prolonged maintenance and lossless dismounting when stake is pierced into is at the problem that must be faced in test.
And in existing Model Pile load-bearing test, it is still not accurate enough to the positioning of Model Pile position, and be difficult to realize artificial
Lossless dismounting is realized after the completion of rock sample maintenance hardening, this is just that following model stake load-bearing experimental study brings larger obstruction；
Cause limited about the accurate of embedded rock pile, system, complete field data, constrains people to rock-socketed piles-rock interface shearing
The understanding of characteristic and micro- macroscopic failure mechanism, causes Design of Rock Socketed Pile unreasonable, holds entrenched attitudes to the design of embedded rock pile more,
Many unnecessary wastes are caused, or even cause some faults.
In summary, for the model investigation of embedded rock pile, the position that Model Pile can be accurately positioned is designed, and
Realize that the device of lossless dismounting seems particularly critical and necessary after the completion of prosthetic graft sample is conserved and hardened.
Summary of the invention
Goal of the invention: to solve that Model Pile position is accurately positioned in rock-socketed piles-rock interfacial interaction mechanism model test
The problem of setting and realizing lossless dismounting after the completion of prosthetic graft sample is conserved and hardened, the present invention provides one kind to be used for Model Pile
The device and application method of Model Pile position are accurately positioned in load-bearing test, realize accurate positionin to Model Pile and lossless supports
Shield and dismounting can effectively improve later period test accuracy, and convenient for manufacturing, having a wide range of application.
Technical solution: in order to achieve the above object, the invention discloses one kind for being accurately positioned in the test of Model Pile load-bearing
The device of Model Pile position, comprising: main body frame, the centralized positioning for considering Model Pile foozle and fixed system, Model Pile
Height adjusting system laterallys secure system；It is characterized by: main body frame include chassis body, gas vent, center positioning hole,
Model Pile height adjustment screw hole, Model Pile height adjustment scale, side fixing threaded hole and anti-blockage holes scarf；Consider Model Pile
The centralized positioning of foozle and fixed system include: centralized positioning clamp and centralized positioning clamp fixing bolt；Model Pile is high
Spending regulating system includes height adjustment bolt and height adjustment washer；The system of lateralling secure includes lateral screwing bolts；In described
Heart positioning fixture, which has, divides valve infundibulate collet.
Preferably, chassis body is that variable cross-section is cylindrical, is equipped with several gas vents；The outer diameter ruler of chassis body end portion
It is very little with for placing test pile and rock/soil body material test box match, the end portion insertion test box and frame master
It is contacted at the variable cross-section of body top with test box outer；The length of chassis body end portion can make height adjustment range covering different
Pile crown height in the case of build-in ratio.
Preferably, the main body of the centralized positioning clamp is metal circular tube, and main body one end, which has, divides valve infundibulate collet, point
Disposed thread is equipped in metal circular tube above valve infundibulate collet；The hole of centralized positioning clamp and funnel shaped center positioning hole
Wall matches；The valve number for dividing valve infundibulate collet is 6-8 valve.
Preferably, the lower end of center positioning hole is infundibulate, the size of center positioning hole and the funnel of centralized positioning clamp
The matching of shape end, when screwing centralized positioning clamp fixing bolt, the funnel position of the center positioning hole can reliably be constrained
And that tightens centralized positioning clamp divides valve infundibulate collet.
Preferably, centralized positioning clamp fixing bolt promotes centralized positioning clamp in screwing operations, makes center clip locator
The bottom face of tool is concordant with funnel shaped center positioning hole bottom face.
Preferably, scribing in the height adjustment scale on main body frame lower sides includes 4 parts, the quarter of each part
It spends corresponding with a screw hole in height adjustment screw hole；Anti-blockage holes scarf is to cut with the annular of device baseplane at an angle
Plane.
Preferably, height adjustment washer is cylindricality metal ring, and the internal diameter of height adjustment washer is slightly larger than chassis body
Lower diameter, or it is equal with the internal diameter of test box, so that the lower part of chassis body is smoothly inserted in the height adjustment washer；Highly
The outer diameter of adjusting washer (disk) is identical as chassis body upper diameter major part.
Application method packet of the present invention for the device of accurate positionin Model Pile position in the test of Model Pile load-bearing
Include following steps:
(1) artificial rock's slurry of preparation or ready soil sample are poured into test box, arrives test box upper surface
Up to specified height；
(2) pile crown of Model Pile is partially placed into the dividing in valve infundibulate collet of centralized positioning clamp；
(3) by centralized positioning clamp and its Model Pile of entrainment) it is horizontal positioned, the leakage of chassis body is then inserted in by lower part
In bucket shape center positioning hole；
(4) by centralized positioning clamp fixing bolt out of, chassis body upper end screws in centralized positioning clamp top screw hole,
Centralized positioning clamp fixing bolt makes centralized positioning clamp increase continuously until that its bottom end plane is concordant with the bottom surface of chassis body,
At this time due to the effect of contraction of infundibulate center positioning hole side wall, the pile crown for dividing valve infundibulate collet to clamp Model Pile, pile body
Part is exposed, checks whether to clamp with hand weak vibrations Model Pile, completes chassis body and centralized positioning clamp and centralized positioning
The assembling of fixture fixing bolt；
(5) height adjustment bolt is successively screwed in Model Pile height adjustment screw hole, until nut and chassis body are close
Until fitting, the assembling of chassis body and centralized positioning clamp, centralized positioning clamp fixing bolt and height adjustment bolt is completed；
(6) after the completion of above-mentioned steps, height adjustment washer is placed on test box, guarantee height adjustment washer in along with
The interior edge alignment of test box；
(7) part being completed in above-mentioned steps (5) is successively inserted in in height adjustment washer in edge and test box
Along the cylindricality circular hole formed；Model Pile is in adjustable extreme higher position at this time；
(8) comparison model stake height adjustment scale gradually symmetrically adjusts height adjustment bolt to the experimental design position of stake
Until, Model Pile can be gradually reduced and be pierced into artificial rock's slurry in adjustment process, and height of observation adjusts scale (5), guarantee
Each scale strip reading is identical；
(9) bolt will be laterallyd secure successively to screw in side fixing threaded hole and tighten；
(10) by entire fixed device and lower part test box be placed on small vibrating platform vibrate so that artificial rock's slurry more
It is contacted uniformly and uniformly with pile body surface, influence when removal process (8) Model Pile is pierced into；
(11) it requires for whole device to be put into fog room maintenance according to the preparation of artificial rock, be taken out to the end of conserving；Really
Recognize and laterallys secure whether bolt is in tight condition；
(12) reversely rotating centralized positioning clamp fixing bolt makes its loosening, until bolt completely disengages；
(13) reversely rotating lateral fixing bolt loosens it until bolt completely disengages, and takes out bolt；
(14) main structure being slowly move upwardly until to, it is completely disengaged with height adjustment washer and test box；
(15) centralized positioning clamp and height adjustment washer are removed, Model Pile can start to test in place at this time.
The utility model has the advantages that compared with prior art, the present invention has following remarkable advantage:
(1) accurate positionin and nothing to Model Pile may be implemented on the basis of ensuring pile body verticality in apparatus of the present invention
Damage maintenance and dismounting, can effectively improve later period test accuracy；
(2) described device is tested by adjusting the case where height adjustment bolt can be directed to different build-in ratios, therefore
The length pore model stake that test box part can be needed to be inserted into main body frame according to test during making the device is high
Degree regulating system is adjusted, and is had a wide range of application；Valve infundibulate collet is divided to be adapted to the Model Pile with small fabrication error,
Its utilization rate can be improved using the method for bed course is increased on pile crown in the case of larger for stake diameter difference, thus be also suitable
In the experimental design of piles with different diameter；
(3) smaller to scale requirement, it can use compared with small dimension and the indoor model test of larger specification；
(4) device production method itself is simple, easy to use, easy to spread.
Detailed description of the invention
Fig. 1 is the plan view from above of device of the present invention；
Fig. 2 is the bottom view of device of the present invention；
Fig. 3 is the front elevation view of arrow direction in Fig. 1；
Fig. 4 is the cross-sectional view of the line A-A along Fig. 1；
Fig. 5 is the cross-sectional view of the line B-B along Fig. 1；
Fig. 6 (a) is the top view of center positioning fixture；
Fig. 6 (b) is the cross-sectional view of center positioning fixture line C-C along Fig. 6 (a)；
Fig. 7 is the plan view from above and front elevation view of center positioning fixture fixing bolt；
Fig. 8 is the assembling view of center positioning fixture and centralized positioning clamp fixing bolt；
Frame plan view from above and baseplane bottom view based on Fig. 9 (a)；
The cross-sectional view of frame line D-D, E-E line along Fig. 9 (a) based on Fig. 9 (b)；
Figure 10 (a) is the using process diagram of center positioning fixture and height adjusting system；
Figure 10 (b) is the using process diagram of side fixed system；
Figure 11 is the device overall top view of girdle tests box and Model Pile；
Figure 12 be along Figure 11 F-F line, G-G line cross-sectional view (rotation overlapping 2 of F-F section laterallys secure spiral shell
Bolt is to G-G section).
Specific embodiment
Technical solution of the present invention is described further with reference to the accompanying drawing.
It is of the present invention for Model Pile load-bearing test in be accurately positioned Model Pile position device include: main body frame,
The centralized positioning of consideration Model Pile foozle and fixed system, laterally secure system at Model Pile height adjusting system.
As shown in Figs. 1-5, main body frame includes: chassis body 1, gas vent 2, center positioning hole 3, Model Pile height adjustment
Screw hole 4, Model Pile height adjustment scale 5, side fixing threaded hole 6 and anti-blockage holes scarf 7；Gas vent 2 has several, is provided with
In chassis body 1, so that fixed device air during being put into test box is smoothly discharged, and guarantee the rock manually prepared
Stone material has enough air circulations and entrance in maintenance hardening process；The lower end of center positioning hole 3 is infundibulate.
In order to facilitate circular scanning and three-dimensionalreconstruction is realized, in the test of Model Pile load-bearing, for placing test pile 13 and rock
The test box more than 15 of stone/soil body material 14 is based on circular cylindrical cavity, therefore in the present embodiment by taking cylindrical frame main body as an example
It is illustrated (other geometric types also can refer to the design concept and are accordingly transformed).As shown in figure 9, chassis body 1 is to become
Section is cylindrical, and the diameter of end portion is smaller, and the outer diameter of end portion is matched with test box 15, so that the part can
It is contacted with being inserted at test box 15 and chassis body top variable cross-section with test box outer.The length of 1 end portion of chassis body
It can need to be designed according to experimental design, thus in the case of making the height adjustment range of the device cover different build-in ratios
Pile crown height.Chassis body material uses metal material, stainless steel material can be selected, to prevent from corroding in the maintenance stage.
As shown in Fig. 4-5,9, Model Pile height adjustment screw hole 4 is by 4 circumferentially equally distributed height adjustment screw hole groups
At to guarantee being not in the case where can not leveling in regulating device height；It scribes in the height on 1 lower sides of chassis body
It includes 4 parts that degree, which adjusts scale 5, and the scale of each part is corresponding with a screw hole in height adjustment screw hole 4；Side is fixed
Screw hole 6 is made of 4 screw holes, needs to have the force point that accurately positioning and horizontal accuracy guarantee all fixing bolts
In in same level.Anti-blockage holes scarf 7 is the annular tangent plane with device baseplane at an angle, to prevent from manually making
Gas vent is blocked when standby rock interface and fixed the bottom of the device face contact.
As shown in figs 6-8, consider the centralized positioning of Model Pile foozle and fixed system include centralized positioning clamp 8 with
And centralized positioning clamp fixing bolt 9.Centralized positioning clamp 8 is that one end has the metal circular tube for dividing valve infundibulate collet, divides valve
Screw built in part round tube more than infundibulate collet.The effect of described point of valve infundibulate collet is can to fully consider Model Pile
Foozle, enhance its applicability；The size of center positioning hole 3 is matched with the funnel of valve infundibulate collet is divided, when
When screwing centralized positioning clamp fixing bolt 9, the funnel position of the center positioning hole 3, which can reliably constrain and tighten center, determines
Position fixture 8 divides valve infundibulate collet.As depicted in figs. 11-12, after Model Pile 11 is put into collet, centralized positioning clamp is fixed
Bolt 9 makes centralized positioning clamp 8 rise overally, and constrains point lobed collet reliably by 3 side wall of center positioning hole to make collet
Model Pile 11 can be sufficiently clamped, guarantees that its pile body in maintenance and hardening process will not be subjected to displacement.The valve number of collet is preferred
Ground can be made as 6-8 valve.
The centralized positioning clamp needs to have accurate processing dimension, matches with the hole wall of funnel shaped center positioning hole 3.
In addition, for a variety of biggish tests of diameter difference, also a point diameter for valve infundibulate collet can be determined with maximum diameter of pile；When need
When clamping the stake of small diameter, it can be used and increase the method for bed course on pile crown to improve its utilization rate, thus be also applied for
The experimental design of piles with different diameter.In addition, the centralized positioning clamp also needs to have accurate processing dimension, with funnel shaped center
The accurate match of location hole 3.To avoid corroding in the maintenance stage, centralized positioning clamp 8 selects stainless steel material production.
In addition, 9 reach of centralized positioning clamp fixing bolt is configured to guarantee to promote center in screwing operations
Positioning fixture 8 keeps the bottom face of centralized positioning clamp concordant with funnel shaped 3 bottom face of center positioning hole.
As shown in Figure 4,5, Model Pile height adjusting system includes: height adjustment bolt 10 and height adjustment washer 12；It is high
Degree adjusts bolt 10 and is made of 4 bolts, need to guarantee that bolt length unanimously facilitates control scale to be leveled.Height adjustment washer
12 be the cylindricality metal ring with enough rigidity；The internal diameter of the height adjustment washer is straight slightly larger than the lower part of chassis body
Diameter, or it is equal with the internal diameter of test box, to guarantee that the lower part of chassis body can be smoothly inserted in height adjustment washer；The height
The outer diameter for spending adjusting washer (disk) is identical as device upper diameter major part, while guaranteeing that machining accuracy makes each cross-section
It is highly identical.The height adjustment washer selects stainless steel material.
The system of lateralling secure includes lateral screwing bolts 11；Figure 11-12 show the dress after addition test box and Model Pile
The overall schematic set can not show in the same sectional view due to lateralling secure bolt 11 and height adjustment bolt 10, be
The internal structure of the clearer diagram present apparatus, Figure 12 laterally secure the rotation of bolt 11 overlapping to G-G for 2 of the section F-F
Section.As depicted in figs. 11-12, it laterallys secure bolt 11 to be made of 4 bolts, the geometric dimension of four bolts is identical, with convenient
Centralized positioning clamp 8 is fixed simultaneously from 4 directions.
Application method of the present invention for the device of accurate positionin Model Pile position in the test of Model Pile load-bearing, packet
Include following steps:
(1) the artificial rock's slurry prepared or soil sample 14 are poured into test box 15, and arrives the upper surface of material
Up to experimental design height；
(2) pile crown of Model Pile 13 is put into point lobed collet of centralized positioning clamp 8；
(3) centralized positioning clamp 8 and its Model Pile 13 of entrainment are inserted in the center positioning hole 3 of chassis body 1 by lower part
It is interior；
(4) centralized positioning clamp fixing bolt 9 is screwed in the superior screw of centralized positioning clamp 8 from 1 upper end of chassis body
Interior, rotation center positioning fixture fixing bolt 9 makes centralized positioning clamp 8 increase continuously until its bottom end plane and chassis body 1
Bottom surface it is concordant；At this time due to the effect of contraction of 3 side wall of center positioning hole, the stake for dividing valve infundibulate collet to clamp Model Pile
Head, pile body part is exposed, checks whether to clamp with hand weak vibrations Model Pile, and chassis body 1 is completed at this time and center is fixed
The assembling of position fixture 8 and centralized positioning clamp fixing bolt 9；
(5) height adjustment bolt 10 is successively screwed in Model Pile height adjustment screw hole 4, until nut and chassis body 1
Until fitting closely, main body frame 1 and centralized positioning clamp 8, centralized positioning clamp fixing bolt 9 and height have been completed at this time
Degree adjusts the assembling of bolt 10；
(6) height adjustment washer 12 is placed on test box 15, guarantees edge and test box 15 in height adjustment washer 12
It is interior along alignment；
(7) part being completed in step (5) is successively inserted in edge in edge in height adjustment washer 12 and test box
The circular hole of formation；The part for stretching out main body frame 1 due to height adjustment bolt at this time is completely exposed, and Model Pile is in can be with
The extreme higher position of adjusting；
(8) comparison model stake height adjustment scale 5 gradually symmetrically adjusts height adjustment bolt 10 to the design position of Model Pile
Until, Model Pile can be gradually reduced and gradually be pierced into artificial rock's slurry, the identical reading of height adjustment scale 5 in adjustment process
The verticality of Model Pile can be effectively ensured in number；Model Pile has been pierced into artificial rock's slurry or soil sample and has been already fixed at this time
At design height；
(9) bolt 11 will be laterallyd secure successively to screw in side fixing threaded hole 6 and tighten；
(10) by entire fixed device and lower part test box be placed on small vibrating platform vibrate so that artificial rock's slurry more
Add uniformly and is uniformly contacted with pile body surface, influence when removal process (8) is pierced into；
(11) whole device is put into fog room according to the vegetation requirement of artificial rock to conserve, is taken to the end of conserving
Out；Confirmation laterallys secure whether bolt 11 is tightened；
(12) reversely rotating centralized positioning clamp fixing bolt 9 makes its loosening, until bolt completely disengages, laterallys secure spiral shell
The effect of bolt is so that guarantee that centralized positioning clamp 8 will not be rotated with it and be destroyed in rotation center positioning fixture fixing bolt 9
Stake-rock interface；
(13) reversely rotating lateral fixing bolt 11 loosens it until bolt completely disengages, and takes out bolt；
(14) main structure being slowly move upwardly until to, it is completely disengaged with height adjustment washer 12 and test box；
(15) centralized positioning clamp 8 and height adjustment washer 12 are removed, Model Pile can start to test in place at this time.
Claims (10)
1. a kind of for the device of Model Pile position to be accurately positioned in the test of Model Pile load-bearing, comprising: main body frame considers model
The centralized positioning of stake foozle and fixed system, laterally secure system at Model Pile height adjusting system；It is characterized by: main
Body frame includes chassis body (1), gas vent (2), center positioning hole (3), Model Pile height adjustment screw hole (4), Model Pile height
Degree adjusts scale (5), side fixing threaded hole (6) and anti-blockage holes scarf (7)；Consider the centralized positioning of Model Pile foozle
And fixed system includes: centralized positioning clamp (8) and centralized positioning clamp fixing bolt (9)；Model Pile height adjusting system packet
Include height adjustment bolt (10) and height adjustment washer (12)；The system of lateralling secure includes lateral screwing bolts (11)；In described
Heart positioning fixture (8), which has, divides valve infundibulate collet.
2. the apparatus according to claim 1, it is characterised in that: chassis body (1) is that variable cross-section is cylindrical, is equipped with several rows
Stomata (2)；The outer diameter of chassis body (1) end portion with for placing test pile and rock/soil body material test box
Matching, the end portion are inserted at test box and chassis body top variable cross-section and contact with test box outer；Chassis body (1)
The length of end portion can make height adjustment range cover the pile crown height in the case of different build-in ratios.
3. the apparatus according to claim 1, it is characterised in that: the main body of the centralized positioning clamp (8) is metal circular tube,
Main body one end, which has, divides valve infundibulate collet, divides and is equipped with disposed thread in the metal circular tube above valve infundibulate collet；Center is fixed
Position fixture and the hole wall of funnel shaped center positioning hole (3) match.
4. device according to claim 3, it is characterised in that: the valve number for dividing valve infundibulate collet is 6-8 valve.
5. the apparatus according to claim 1, it is characterised in that: the lower end of center positioning hole (3) is infundibulate, centralized positioning
The size in hole is matched with the funnel of centralized positioning clamp, when screwing centralized positioning clamp fixing bolt (9), the center
The funnel position of location hole (3) can reliably constrain and that tightens centralized positioning clamp (8) divides valve infundibulate collet.
6. the apparatus according to claim 1, it is characterised in that: centralized positioning clamp fixing bolt (9) is in screwing operations
It is promoted centralized positioning clamp (8), keeps the bottom face of centralized positioning clamp concordant with funnel shaped center positioning hole (3) bottom face.
7. the apparatus according to claim 1, it is characterised in that: scribe in the height tune on main body frame (1) lower sides
Saving scale includes 4 parts, and the scale of each part is corresponding with a screw hole in height adjustment screw hole (4).
8. the apparatus according to claim 1, it is characterised in that: anti-blockage holes scarf (7) is with device baseplane in certain
The annular tangent plane of angle.
9. the apparatus according to claim 1, it is characterised in that: height adjustment washer (12) is cylindricality metal ring, height
The internal diameter of adjusting washer (disk) is slightly larger than the lower diameter of chassis body, or equal with the internal diameter of test box, makes the lower part of chassis body
The height adjustment washer can be smoothly inserted in；The outer diameter of height adjustment washer is identical as chassis body upper diameter major part.
10. it is a kind of as claim 1-9 it is described in any item for Model Pile load-bearing test in be accurately positioned Model Pile position
The application method of device, it is characterised in that: the following steps are included:
(1) artificial rock's slurry of preparation or ready soil sample are poured into test box, reaches test box upper surface and refers to
Fixed height；
(2) pile crown of Model Pile is partially placed into the dividing in valve infundibulate collet of centralized positioning clamp (8)；
(3) centralized positioning clamp (8) and its Model Pile (13) of entrainment is horizontal positioned, chassis body is then inserted in by lower part
(1) in infundibulate center positioning hole (3)；
(4) centralized positioning clamp fixing bolt (9) is screwed in the spiral shell on centralized positioning clamp (8) top from chassis body (1) upper end
In hole, centralized positioning clamp fixing bolt (9) makes centralized positioning clamp (8) increase continuously until its bottom end plane and chassis body
(1) bottom surface is concordant, at this time due to the effect of contraction of infundibulate center positioning hole (3) side wall, valve infundibulate collet is divided to clamp
The pile crown of Model Pile, pile body part is exposed, checks whether to clamp with hand weak vibrations Model Pile, completes chassis body (1) in
The assembling of heart positioning fixture (8) and centralized positioning clamp fixing bolt (9)；
(5) height adjustment bolt (10) is successively screwed in Model Pile height adjustment screw hole (4), until nut and chassis body
(1) until fitting closely, chassis body (1) and centralized positioning clamp (8), centralized positioning clamp fixing bolt (9) and height are completed
Degree adjusts the assembling of bolt (10)；
(6) after the completion of above-mentioned steps, height adjustment washer (12) is placed on test box, is guaranteed in height adjustment washer (12)
Edge is aligned with the interior edge of test box；
(7) part being completed in above-mentioned steps (5) is successively inserted in the interior edge of height adjustment washer (12) and test box
Along the cylindricality circular hole formed；Model Pile is in adjustable extreme higher position at this time；
(8) comparison model stake height adjustment scale (5) gradually symmetrically adjusts height adjustment bolt (10) to the experimental design position of stake
It is set to only, Model Pile can be gradually reduced and be pierced into artificial rock's slurry in adjustment process, and height of observation adjusts scale (5), protect
It is identical to demonstrate,prove each scale strip reading；
(9) bolt (11) will be laterallyd secure successively to screw in side fixing threaded hole (6) and tighten；
(10) by entire fixed device and lower part test box be placed on small vibrating platform vibrate so that artificial rock's slurry more evenly
And it is uniformly contacted with pile body surface, influence when removal process (8) Model Pile is pierced into；
(11) it requires for whole device to be put into fog room maintenance according to the preparation of artificial rock, be taken out to the end of conserving；Confirm side
Whether tight condition is in fixing bolt (11)；
(12) reversely rotating centralized positioning clamp fixing bolt (9) makes its loosening, until bolt completely disengages；
(13) reversely rotating lateral fixing bolt (11) loosens it until bolt completely disengages, and takes out bolt；
(14) main structure being slowly move upwardly until to, it is completely disengaged with height adjustment washer (12) and test box；
(15) centralized positioning clamp (8) and height adjustment washer (12) are removed, Model Pile can start to test in place at this time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811406985.2A CN109374388B (en) | 2018-11-23 | 2018-11-23 | Device for accurately positioning model pile position in model pile loading test and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811406985.2A CN109374388B (en) | 2018-11-23 | 2018-11-23 | Device for accurately positioning model pile position in model pile loading test and using method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN109374388A true CN109374388A (en) | 2019-02-22 |
| CN109374388B CN109374388B (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811406985.2A Active CN109374388B (en) | 2018-11-23 | 2018-11-23 | Device for accurately positioning model pile position in model pile loading test and using method thereof |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5450112A (en) * | 1977-09-27 | 1979-04-19 | Kubota Ltd | Device of testing horizontal load of model pile |
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