CN109323882A - A kind of combination hammer displacement pier pier body sampler - Google Patents
A kind of combination hammer displacement pier pier body sampler Download PDFInfo
- Publication number
- CN109323882A CN109323882A CN201811403277.3A CN201811403277A CN109323882A CN 109323882 A CN109323882 A CN 109323882A CN 201811403277 A CN201811403277 A CN 201811403277A CN 109323882 A CN109323882 A CN 109323882A
- Authority
- CN
- China
- Prior art keywords
- sampler
- pier
- cylinder
- model casing
- displacement
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
Abstract
The present invention relates to a kind of combinations to hammer displacement pier pier body sampler into shape.The device includes pressurizing frame, hydraulic device, sampler and model casing.Pressurizing frame fixes oil pressure unit, and hydraulic device connects sampler, and sampler takes out displacement pier from model casing, injects Na in pier body2O·3.5SiO2With anhydrous CaCl2Mixed liquor, wash out the topsoil adhered on pier body with water after pier body material is cementing, can be obtained complete pier body.The present invention can explore the rule of combination hammer displacement pier volume morphing development in laboratory, combine the reinforcement mechanism of hammer displacement method for research and load-carrying properties establish solid foundation, the method has many advantages, such as that intuitive, easy, result is reliable, economical and practical.
Description
Technical field
The present invention relates to a kind of combinations to hammer displacement pier pier body sampler into shape, belongs to the geotechnical engineering field of architectural engineering.
Background technique
These offshore engineerings such as a large amount of dykes and dams, harbour, large warehoused, material flow industry accumulation regions and power plant are planning it
Column, therefore, the reinforcement of soft soil technical value of coastal area obtains in depth explore and study.Although heavy-tamping method, heavy tamping replacement method and column
Hammer develops broken stone pile method and is widely used in engineering construction, but is influenced by foundation soil classification, these methods have
Certain limitation.Combination hammer displacement method inherits heavy-tamping method, heavy tamping replacement method and column hammer and rams the skill for developing these three methods of stake
Art advantage and respective technical defect is compensated for, is the foundation treatment mode after a kind of optimization, in Soft Soils Consolidation in A reality
Good effect is achieved in trampling, in order to further investigate the mechanism and load-carrying properties of the engineering method reinforcing flexible foundation, heightened awareness displacement
The form of pier is a very necessary thing.
Indoor model test is a kind of common research means for recognizing pier volume morphing because laboratory test have it is economical,
Controllably, flexibly, many advantages such as facilitate.Carried out some relevant experiment works, A. P. Ambily in 2007 etc. both at home and abroad
When studying the mechanical behavior of broken stone pile, gypsum is injected in broken stone pile, surrounding mud is removed after to be solidified, obtains the shape of broken stone pile
State (Behaviour of stone cloumns based on experimental and FEM anylsis [J]
Journal of Geotechnical and Geoenvironmental Engineering, 2007, 133(4): 405-
415.)；When the reinforcement mechanism of Xu Yu victory research heavy tamping replacement method in 2009, cement slurry is injected after diging up the filler of displacement pier, is coagulated
Gu molding has obtained form (application study [D] of big energy forced ramming displacement method processing Shenzhen area soft soil foundation of displacement pier
Shenzhen: China Academy of Railways Sciences, 2009).The above method plays a role in terms of pier volume morphing research, but not
Suitable for studying the form of combination hammer displacement pier.Firstly, displacement material is discrete material, through power rammer when displacement method reinforcing flexible foundation
After reality, compactness is high, the method for such as using A. P. Ambily, and gypsum mobility is poor, it is difficult to flow into pier body bottom.Secondly,
Combination hammer is a kind of assembly of variable diameters hammer ram, and the longitudinal section for replacing pier is necessarily irregular, the method for such as using Xu Yusheng, that
In digging process, weak soil flowing, necking is serious, and for the pier body of irregular section, this mode be will lead to
The distortion of pier volume morphing.Currently, there is no the relevant sampler of combination hammer displacement pier volume morphing.
Summary of the invention
It is an object of that present invention to provide a kind of combination hammer into shape displacement pier pier body sampler, it can heightened awareness combination hammer set
Pier volume morphing development process when method reinforcing flexible foundation is changed, has the advantages that intuitive, easy, result is reliable, economical and practical.
Combination hammer displacement pier pier body sampler proposed by the present invention, by pressurizing frame 1, grooved track 2, model casing supporting leg
3, model cabinet 4, cylinder mechanism 5, sampler 6, auricle 7, bolt 8, hydraulic cylinder 9, connection sheet 10, notch 11, lever handle
12, head plate 13 and liquid injection hole 14 form, in which: pressurizing frame 1 is made of box chassis, two root posts and a crossbeam, side
Two root posts one end is welded on frame chassis, the two root posts other end is separately connected crossbeam, and the box chassis is equipped with two slots
Type track 2, model casing 4 is placed in grooved track 2, and model casing 4 can slidably reciprocate on box chassis；The hydraulic cylinder 9
Piston tip connects sampler 6；The sampler 6 is cylinder steel cylinder, it is led to by two semicircular cylinders of an end closure and open at one end
It crosses connection sheet 10 to fix, the baffle for sealing one end is equipped with liquid injection hole 14, and open one end is for being inserted into the top of a wall plate 13, pressurizing frame
Fixed hydraulic oil cylinder 9 on 1 crossbeam, the piston end of hydraulic cylinder 9 is towards model casing 4；The piston of hydraulic cylinder 9 connects sampler
6, hydraulic cylinder 9 connects lever handle 12 by pipeline；Bottom is equipped with cylinder mechanism 5 in model casing 4, when lever handle 12 is downward
When pressure, sampler 6 is moved down, and its lower edge is extend into always in the cylinder mechanism 5 of model casing bottom, cylinder mechanism
When both 5 fluting position and the notch 11 of sampler open end are overlapped, head plate 13 is inserted into sampler 6, in model casing
Displacement pier and pier week soil are cut by head plate, just can enter in sampler；When lift lever handle 12, sampler can be setting
Dun Hedun Zhou Tuti is changed to propose from model casing；Sampler 6 is placed vertically；Na is injected from liquid injection hole2O·3.5SiO2With it is anhydrous
CaCl2Mixed liquor, keep pier body material cementing, water rushes pier weekly form layer soil body, just obtains complete pier body.
In the present invention, the hydraulic cylinder uses bidirectional hydraulic jack, and hydraulic cylinder 9 connects lever handle 12, hydraulic
Oil cylinder is fixed on the crossbeam of pressurizing frame, its piston is towards model casing, convenient for connection sampler 6.
In the present invention, the sampler is cylinder steel cylinder, seals and is additionally provided with auricle 7 on the baffle of one end, auricle 7 passes through
Pin 8 connects sampler 6 with hydraulic cylinder.The purpose of liquid injection hole 14 is to inject Na into displacement pier2O·3.5SiO2With it is anhydrous
CaCl2Mixed liquor.Open end margin fluting, notch 8 is to be inserted into head plate.
In the present invention, the model cabinet 4 is cuboid iron case, and top is not closed, and there is a raised circle in bottom centre
Cylinder mechanism 5, has a diameter larger than sampler diameter, cylinder mechanism bottom end closure, slots on side wall, it is therefore an objective to be inserted into the envelope of sampler
Head plate.Model casing bottom surrounding is equipped with vertical legs 3, is placed in the grooved track 2 of pressurizing frame, and model casing can be in flute profile
It is slided on track.
Compared with prior art, the invention has the following advantages that
1, sampler is simple, strong operability；
2, using Na2O·3.5SiO2With anhydrous CaCl2Mixed liquor as adhesive bond good fluidity, it is easier to flow to displacement pier
Bottom, displacement pier body material is cementing to be easier；
3, displacement pier sampling process is reasonable, avoids the undergauge phenomenon in displacement hole；
4, pier volume morphing is intuitive, it is reliable, economical and practical to measure simplicity, test result.
Detailed description of the invention
Fig. 1 is apparatus of the present invention schematic diagram；
Fig. 2 is the schematic diagram that head plate is inserted into sampler；
Fig. 3 is the schematic diagram that sampler takes out；
Fig. 4 is the schematic diagram that head plate takes out；
Fig. 5 is the schematic diagram of sampler separation；
Fig. 6 is the schematic diagram replacing pier and separating with pier week soil.
Figure label: 1- pressurizing frame, 2- grooved track, 3- model casing supporting leg, 4- model casing, 5- cylinder mechanism, 6- take
Sample device, 7- auricle, 8- pin, 9- hydraulic cylinder, 10- connection sheet, 11- notch, 12- hand jack, 13- head plate, 14- note
Fluid apertures.
Specific embodiment
Detailed description of the present invention implementation process with reference to the accompanying drawing, it is all using structure similar to the present invention and similar
Variation, protection scope of the present invention should all be included in.
Example 1: as shown in Figure 1, the model casing supporting leg 3 of model cabinet 4 is placed on above grooved track 2；Pressurizing frame 1 is fixed
Hydraulic cylinder；Hydraulic cylinder one end connects lever handle 12, and the other end connects sampler 6；Sampler 6 can be upper and lower with hydraulic cylinder
It is mobile.
As shown in Fig. 2, sampler 6 is moved to always in the cylinder mechanism 5 of the model bottom of box downwards, head plate 13 passes through
The slot of 5 side wall of cylinder mechanism is inserted into sampler, and when hydraulic piston 9 moves up, sampler 6 moves up therewith.
As shown in figure 3, extracting pin 8, pier and pier Zhou Tuti are replaced with sampler and leaves model cabinet 4.Replace pier
It is taken out from model casing with pier Zhou Tuti, Na straight up, is injected from Kong Zhongxiang sampler 6 in the position of liquid injection hole 142O·
3.5SiO2With anhydrous CaCl2Mixed liquor, mixed liquor chemically reacts, and pier body material is cementing, stands 2 days.
As shown in figure 4, sampler 6 is horizontally arranged, head plate 13 is taken out.
As shown in figure 5, sampler 6 is slided to the left, semicircular cylinder is left thereon, and lower half cylinder is kept fixed, and exposes displacement
The pier surface layer soil body.
As shown in fig. 6, rushing the soil body on displacement pier surface layer with water, cementing displacement pier is gradually disengaged with pier Zhou Tuti, finally
It obtains completely replacing pier, the pier volume morphing of Observable displacement pier.
Claims (4)
1. a kind of combination hammer displacement pier pier body sampler, by pressurizing frame (1), grooved track (2), model cabinet (4), cylinder
Mechanism (5), sampler (6), bolt (8), hydraulic cylinder (9), connection sheet (10), notch (11), lever handle (12), head plate
(13) it being formed with liquid injection hole (14), it is characterised in that: pressurizing frame (1) is made of box chassis, two root posts and a crossbeam,
Two root posts one end is welded on box chassis, the two root posts other end is separately connected crossbeam, and the box chassis is equipped with two
Grooved track (2), places model casing (4) in grooved track (2), and model casing (4) can slidably reciprocate on box chassis；The liquid
The piston tip of compressing cylinder (9) connects sampler (6)；The sampler (6) is cylinder steel cylinder, it is opened by an end closure and one end
Two semicircular cylinders of mouth are fixed by connection sheet (10), and the baffle for sealing one end is equipped with liquid injection hole (14), and open one end is for inserting
Enter the top of a wall plate (13), fixed hydraulic oil cylinder (9) on the crossbeam of pressurizing frame (1), the piston end of hydraulic cylinder (9) is towards model casing
(4)；The piston of hydraulic cylinder (9) connects sampler (6), and hydraulic cylinder (9) connects lever handle (12) by pipeline；Model casing
(4) interior bottom is equipped with cylinder mechanism (5), and when lever handle (12) is pressed downward, sampler (6) is moved down, and under it
Edge is extend into always in the cylinder mechanism (5) of model casing bottom, the fluting position of cylinder mechanism (5) and sampler open end
When both notches (11) are overlapped, head plate (13) are inserted into sampler (6), the displacement pier and pier week soil in model casing are by head plate
Cutting, just can enter in sampler；When lift lever handle (12), sampler can be displacement pier and pier Zhou Tuti from model
It is proposed in case；Sampler (6) is placed vertically；Na is injected from liquid injection hole2O·3.5SiO2With anhydrous CaCl2Mixed liquor, make pier body
Material is cementing, and water rushes pier weekly form layer soil body, just obtains complete pier body.
2. the apparatus according to claim 1, it is characterised in that: the hydraulic cylinder uses bidirectional hydraulic jack, hydraulic
Oil cylinder (9) connects lever handle (12), and hydraulic cylinder is fixed on the crossbeam of pressurizing frame, its piston is towards model casing, just
In connection sampler (6).
3. the apparatus according to claim 1, it is characterised in that: the sampler is cylinder steel cylinder, seals the gear of one end
It is additionally provided on plate auricle (7), auricle (7) is connected sampler (6) with hydraulic cylinder by pin (8), the mesh of liquid injection hole (14)
Be to displacement pier in inject Na2O·3.5SiO2With anhydrous CaCl2Mixed liquor, open end margin fluting, notch (8) be for
Insertion head plate.
4. the apparatus according to claim 1, it is characterised in that: the model cabinet (4) is cuboid iron case, and top is not sealed
It closes, there is a raised cylinder mechanism (5) in bottom centre, has a diameter larger than sampler diameter, cylinder mechanism bottom end closure, side wall
Upper fluting, it is therefore an objective to be inserted into the head plate of sampler, model casing bottom surrounding is equipped with vertical legs (3), is placed in pressurization branch
In the grooved track (2) of frame, model casing can slide on channel suspending rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811403277.3A CN109323882A (en) | 2018-11-23 | 2018-11-23 | A kind of combination hammer displacement pier pier body sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811403277.3A CN109323882A (en) | 2018-11-23 | 2018-11-23 | A kind of combination hammer displacement pier pier body sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109323882A true CN109323882A (en) | 2019-02-12 |
Family
ID=65257480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811403277.3A Pending CN109323882A (en) | 2018-11-23 | 2018-11-23 | A kind of combination hammer displacement pier pier body sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109323882A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575848A (en) * | 2009-06-05 | 2009-11-11 | 刘献刚 | Method for treating foundation by combined hammers |
| CN201520968U (en) * | 2009-06-05 | 2010-07-07 | 刘献刚 | Combined hammer |
| CN202041412U (en) * | 2011-05-14 | 2011-11-16 | 张天国 | Compaction device for bituminous mixture |
| CN202220341U (en) * | 2011-06-22 | 2012-05-16 | 广东省基础工程公司 | Support structure for foundation pit in sludge |
| CN102535429A (en) * | 2012-01-20 | 2012-07-04 | 刘献刚 | Combined-rammer construction technology for foundation treatment |
| CN203629879U (en) * | 2013-12-26 | 2014-06-04 | 甘肃省治沙研究所 | Sand soil sampling device |
| CN204589984U (en) * | 2015-01-16 | 2015-08-26 | 刘献刚 | A kind of high-strength displacement pier for composite foundation |
| CN206974777U (en) * | 2017-07-31 | 2018-02-06 | 福建融诚检测技术股份有限公司 | A kind of Compaction experiment experiment hoop pier |
| CN207556889U (en) * | 2017-12-15 | 2018-06-29 | 内蒙古农业大学 | Clover root sampler |
-
2018
- 2018-11-23 CN CN201811403277.3A patent/CN109323882A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575848A (en) * | 2009-06-05 | 2009-11-11 | 刘献刚 | Method for treating foundation by combined hammers |
| CN201520968U (en) * | 2009-06-05 | 2010-07-07 | 刘献刚 | Combined hammer |
| CN202041412U (en) * | 2011-05-14 | 2011-11-16 | 张天国 | Compaction device for bituminous mixture |
| CN202220341U (en) * | 2011-06-22 | 2012-05-16 | 广东省基础工程公司 | Support structure for foundation pit in sludge |
| CN102535429A (en) * | 2012-01-20 | 2012-07-04 | 刘献刚 | Combined-rammer construction technology for foundation treatment |
| CN203629879U (en) * | 2013-12-26 | 2014-06-04 | 甘肃省治沙研究所 | Sand soil sampling device |
| CN204589984U (en) * | 2015-01-16 | 2015-08-26 | 刘献刚 | A kind of high-strength displacement pier for composite foundation |
| CN206974777U (en) * | 2017-07-31 | 2018-02-06 | 福建融诚检测技术股份有限公司 | A kind of Compaction experiment experiment hoop pier |
| CN207556889U (en) * | 2017-12-15 | 2018-06-29 | 内蒙古农业大学 | Clover root sampler |
Non-Patent Citations (4)
| Title |
|---|
| K. DEB ET AL.: "Laboratory model studies on unreinforced and geogrid-reinforced sand bed over stone column-improved soft clay", 《GEOTEXTILES AND GEOMEMBRANES》 * |
| 刘新: "组合锤法(超深挤密)强夯置换地基处理", 《中华民居》 * |
| 刘祥顺: "《全国一级注册建筑师备考指南 建筑材料》", 31 January 2014, 中国建材工业出版社 * |
| 叶观宝 等: "组合锤置换墩极限承载力计算方法", 《哈尔滨工业大学学报》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201172828Y (en) | Well-covering device for dewatering well | |
| CN105137048A (en) | Stratum grouting simulation system | |
| CN106950070A (en) | Experimental rig for rectangular top pipe jacking construction Whole Process Simulation | |
| CN103018152A (en) | Indoor grouting testing device under simulation of complex stress effect and testing method thereof | |
| CN106814016A (en) | The analogy method of slurry filling imitation device | |
| CN202956329U (en) | Indoor grouting test device under action of simulated complex stress | |
| CN105181927B (en) | The hypotonic coal seam hydraulic fracture simulation experiment method of multi- scenarios method | |
| CN102162246B (en) | Vibration-less compaction method of collapsible loess foundation | |
| CN205263089U (en) | Stratum slip casting analog system | |
| CN208650073U (en) | Cut and cover method subaqueous tunnel steel sheet-pile cofferdam construction | |
| CN203213101U (en) | Embedding grouting combined pile | |
| CN111364469B (en) | Underwater concrete pouring device, construction method and application of underwater concrete pouring device in ultra-large deepwater open caisson foundation | |
| CN110031259B (en) | Active downward-pressing type movable valve thin-wall soil sampler for soft soil | |
| CN205382483U (en) | Drilling bored concrete pile drilling equipment in deep water sand boulder bed riverbed | |
| CN105297737B (en) | A kind of bag type paste miniature pressure bearing pile of controllable range of grouting | |
| CN204990969U (en) | Simulation reservoir dam impervious curtain's test model | |
| CN107653889A (en) | A kind of shaped steel pressure is poured water the construction method of soil curtain support pile | |
| CN109323882A (en) | A kind of combination hammer displacement pier pier body sampler | |
| CN104091509A (en) | Cast-in-situ bored pile teaching solid model and teaching demonstration method | |
| CN203069483U (en) | Tunnel fracture water gushing simulation test equipment | |
| CN208472716U (en) | Crack geology mortar leakage prevention drill-pouring pilework | |
| CN110241801A (en) | Soil vacuum monitoring method and device under a kind of vacuum preloading sealing film | |
| CN205875146U (en) | Broken pile's reinforced structure | |
| CN102758434B (en) | Middle pick prestressed centrifugally pile tube pile-sinking device and pile sinking method thereof | |
| CN205917685U (en) | Integral type well dotted arranges vacuum system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190212 |