CN202595721U - Punched and bored pile sampler - Google Patents
Punched and bored pile sampler Download PDFInfo
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- CN202595721U CN202595721U CN 201220270502 CN201220270502U CN202595721U CN 202595721 U CN202595721 U CN 202595721U CN 201220270502 CN201220270502 CN 201220270502 CN 201220270502 U CN201220270502 U CN 201220270502U CN 202595721 U CN202595721 U CN 202595721U
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Abstract
The utility model relates to a punched and bored pile sampler which comprises a barrel body with a middle through hole and a base plate fixedly installed at an end face of the bottom of the barrel body. A plurality of slurry discharge through holes are arranged on the barrel wall of the barrel body, every three slurry discharge through holes form into an equilateral triangle shape to be evenly distributed on the barrel wall, a plurality of auxiliary through holes are arranged on the base plate, and the auxiliary through holes are communicated with the middle through hole. After the punched and bored pile sampler accurately, timely and directly collects slag samples at the pile bottoms, the lithology can be judged by geotechnical engineers. When the design pile bottom bearing stratum requirements are met, operation of cleaning holes, placing reinforcement cages and pouring concrete can be carried out. Thus, the punched and bored pile sampler has the advantages of being high in efficiency, low in cost, convenient to take, process and install, convenient, practical, simple, reliable, good in practicability and the like. Important functions are brought to safety protection, technical assurance, quality guarantee and project time and cost control of pile foundation construction, and good economical benefits are achieved.
Description
Technical field
The utility model relate to dash, the drilled pile sampler.
Background technology
" the loftiest towers are built up from the ground ", this is a well-known common saying.Stand in the angle of specialty, the pile foundation construction in the building engineering field is to its most vivid annotation.
Bad when ground shallow soil matter, when adopting shallow foundation can't satisfy works, often need adopt deep foundation, and pile foundation is a kind of deep foundation pattern with a long history and widely used to the requiring of foundation strength, distortion and stable aspect.Dashing (brill) hole pouring pile is one of pile foundation type commonly used in the construction work.Castinplace pile is direct pore-forming on the spot on the stake position, and concrete perfusion or steel concrete form in the hole then.Dash the construction of (brill) hole pouring pile and dash (brill) hole machine impact (creeping into) pore-forming, be the mud off pore-forming.
With punching stake machine is example, and the punching castinplace pile adopts punching stake machine Churn drill pore-forming, and concrete perfusion or steel concrete form in the hole then; Be mainly used in pore-forming in the rock-soil layer, will after the bevel-type drill bit rises to certain altitude, come broken rock with the impact force of free-falling during pore-forming, slurry is returned in the direct circulation of employing; Utilize suction pump that mud is risen along hole wall; To excessive slurry hole, aperture, mud that overflows and sediment flow into mud pit, after precipitation process, return in the hole again.Main technical requirements gets into design at the bottom of being and holds whole hole behind the certain depth of power rock stratum in the construction works; And to hold at the bottom of the stake power rock stratum judgement become the most important thing, whether conventional means adopts mud pit direct circulation return slag more or draws samplings such as slag tube and differentiate and meet design requirement.
According to construction experience in the past, < 1.5m, design bearing stratum are sand layer or designing pile length shorter one (< 50m), utilize conventional means can solve the judgement that designs bearing stratum for dashing (brills) hole stake stake bore dia.
Super high rise building tool building height high (generally greater than 100m), the unit area load is big, to characteristics such as relative settlement sensitivities; Part regional engineering geological condition of living in is complicated in addition, and the basement rock weathering is violent, during it is stable～gentle breeze basement rock buried depth big (generally surpassing 70m), like the Hou Hai section of Shenzhen etc.For this type of super high rise building, design pile foundation type is generally the great diameter and long socketed pile, and adopt dashed (brill) hole pouring pile more; Its bore dia is generally greater than 2.5m, the long 70～100m that surpasses of stake, the high (45000KN～50000KN) of bearing capacity of single pile; Construction requirement is high, and the pile difficulty is big.
To above-mentioned situation, utilize the conventional means sampling that following several shortcoming and defect is arranged:
1, because the stake hole depth surpasses 70m, and the time of direct circulation return slag is long, a judgement that gets into stake bed rock layer is often caused hysteresis, have in the practical engineering experience to get into the situation generation that just begins return slag behind the 6m of rock stratum;
2, direct circulation return slag effect is bad, and it is Powdered that return slag is more, can't accurately judge or cause erroneous judgement;
3, suitable mud balance and the slip consistency sediment that can effectively the stake hole be produced taken out of in the hole outside and also in time precipitate.Mud balance is between 1.1 to 1.3 under the regular situation.Practical engineering experience transfers to the mud ratio more than 1.4, and the return slag effect still can not be improved.And the mud ratio frictional force between affects pile body and the soil body too, this external cause mud too thickness also can influence efficiency of construction, and safety, quality, programming are produced harmful effect;
The main effect of 4, drawing the slag tube is to remove a stake bed mud slag.Owing to its longer dimension (> 1m) and be the uncovered cylindric of sealing, be difficult for fixed installation, often be difficult to direct, effective collecting pile bed rock rock ballast appearance.Above various shortcoming can produce the erroneous judgement to stake bed rock layer with not enough, all can cause tremendous loss and consequence from aspects such as safety, duration, economic benefits.
The utility model content
The purpose of the utility model is to propose a kind ofly to dash, the drilled pile sampler, and it can solve erroneous judgement appears in prior art easily to stake bed rock layer problem.
In order to achieve the above object, the technical scheme that the utility model adopted is following:
Dash, the drilled pile sampler, it comprises the cylindrical shell with middle through hole, and the base plate that is fixedly mounted on the cylindrical shell bottom end face; Offer a plurality of slurry through holes of letting out on the barrel of cylindrical shell, let out the slurry through hole and form an equilateral triangle and be evenly distributed on the barrel for per three; Offer a plurality of auxiliary through hole on the base plate, auxiliary through hole is communicated with middle through hole.
As preferred construction, per two spacings of letting out between the slurry through hole are 40mm.
As preferred construction, the spacing between per two auxiliary through hole is 25mm.The quantity of auxiliary through hole is five.
As preferred construction, the diameter of letting out the slurry through hole is 5mm.
As preferred construction, the diameter of auxiliary through hole is 3mm.
As preferred construction, the height of cylindrical shell is 150mm, and the thickness of barrel is 3mm.
As preferred construction, the cross section of cylindrical shell is circular, and the external diameter of cylindrical shell is 100mm.
The utlity model has following beneficial effect:
Through dash, the drilled pile sampler is after slag specimen accurately, in time, directly gathers at the bottom of to stake, through its lithology of judgement of geotechnical engineering teacher, satisfy after a design stake end holds the requirement of power rock stratum; Just can carry out the work of hole, placement reinforcing cage and concreting clearly, high efficiency, and have with low cost; Be convenient to draw materials, process and install; Convenient and practical, simple and reliable, characteristics such as practice effect is good.Play crucial effects to the safeguard protection of pile foundation construction, technical guarantee, quality assurance with to duration and cost Control, obtained good economic benefit.
Description of drawings
Fig. 1 is the stereogram of the dashing of the utility model preferred embodiment, drilled pile sampler;
Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
Below, in conjunction with the accompanying drawing and the specific embodiment, the utility model done further describing, so that clearerly understand the utility model technological thought required for protection.
As depicted in figs. 1 and 2, dash, the drilled pile sampler, it comprises the cylindrical shell 1 with middle through hole 11, and the base plate 2 that is fixedly mounted on cylindrical shell 1 bottom end face.The height of cylindrical shell 1 is 150mm, and the thickness of barrel is 3mm.The cross section of cylindrical shell 1 is circular, and the external diameter of cylindrical shell 1 is 100mm.
Offer a plurality of slurry through holes 12 of letting out on the barrel of cylindrical shell 1, let out slurry through hole 12 and form equilateral triangles and be evenly distributed on the barrel for per three.Per two spacings of letting out between the slurry through hole 12 are 40mm, and the diameter of letting out slurry through hole 12 is 5mm.
Offer a plurality of auxiliary through hole 21 on the base plate 2, auxiliary through hole 21 is communicated with middle through hole 11.Spacing between per two auxiliary through hole 21 is 25mm.The quantity of auxiliary through hole 21 is five.Five auxiliary through hole 21 also are evenly distributed on the base plate 2.The diameter of auxiliary through hole is 3mm.
The external diameter that the size of base plate 2 is slightly larger than cylindrical shell 1 gets final product.
The manufacturing materials of cylindrical shell 1, base plate 2 does not limit, and steel, alloy can.
What above specifications parameter need further specify is:
1, material does not have specific (special) requirements, has certain intensity and toughness and gets final product, and is convenient to draw materials and weld, and welding requirements is firm in addition, prevents to come off;
2, the height and the diameter specifications of cylindrical shell are chosen main consideration ergonomics, need artificial the extracting to draw out after the sampler sampling finishes, its specifications parameter comparison ordinary people's palm and wrist length;
3, barrel and backplane are let out the effect that slurry through hole and auxiliary through hole mainly play screen filtration, and mud and granulated slag are leached, and only take a bed rock rock ballast appearance;
4, let out the slurry through-hole diameter and choose according to practical engineering experience, general return slag slag specimen particle diameter is many being main less than 5mm, also is to rise and mainly let out slurry in order to reach barrel and take the different size aperture, and base plate plays less important effect of letting out slurry.
When dashing (brill) hole stake pore-forming; To, the bevel-type drill bit come broken rock after rising to certain altitude with the impact force of free-falling; Its slag specimen dashes under the ringing that reaches mud shaking of external force; The segment distance that at the bottom of the hole, moves upward, through be welded on the dashing of tup, the drilled pile sampler in time can reach timely, accurate must the collection to slag specimen.
The use of embodiment divides following 5 steps, is example with the punching stake:
1, process by above-mentioned specification dash, drilled pile sampler finished product, it is welded on dashes on the pile monkey head of (brills) hole, horizontal level is chosen between the hammer tooth, the upright position is positioned at tup and 1/2 place that hammers the end into shape.The purpose of doing like this has two: 1., the protection sampler when tup impacts basement rock, self is not deformed or is squinted; 2., many as far as possible must taking near the slag specimen at the bottom of the stake;
2, dashing (brill) hole stake machine gets final product by the regular situation construction.Treat that pile foundation rushes in speed when slow; The general not enough 0.2m of drilling depth per hour is simultaneously according to the prospecting data in the place, like bore hole columnar section, sectional drawing and weathered rocks top board contour map; Get rid of the possibility of weathered sandwich or boulder, just can gather slag specimen at the bottom of the stake.
3, with hoist engine tup is sling to the aperture, manual work empties the delay sediment in the sampler, and its purpose is actual rock slag specimen at the bottom of accurate the collecting pile;
4, clean out after, tup is placed back stake proceeds hammering in an end, after about 15 minutes, the sampling process of repeating step 3;
5, through geotechnical engineering teacher the slag specimen of sampler collection is carried out lithology and judge, satisfy a design stake end and hold after the power rock stratum requires, the work of just can carry out hole clearly, placing reinforcing cage and concreting.
Also can take a sample for drilled pile with reference to above-mentioned steps.
For a person skilled in the art, can make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection domain of the utility model claim all according to the technical scheme and the design of above description.
Claims (8)
1. dash, the drilled pile sampler, it is characterized in that, comprise cylindrical shell, and the base plate that is fixedly mounted on the cylindrical shell bottom end face with middle through hole; Offer a plurality of slurry through holes of letting out on the barrel of cylindrical shell, let out the slurry through hole and form an equilateral triangle and be evenly distributed on the barrel for per three; Offer a plurality of auxiliary through hole on the base plate, auxiliary through hole is communicated with middle through hole.
2. as claimed in claim 1ly dash, the drilled pile sampler, it is characterized in that per two spacings of letting out between the slurry through hole are 40mm.
3. as claimed in claim 1ly dash, the drilled pile sampler, it is characterized in that the spacing between per two auxiliary through hole is 25mm.
4. as claimed in claim 3ly dash, the drilled pile sampler, it is characterized in that the quantity of auxiliary through hole is five.
5. as claimed in claim 1ly dash, the drilled pile sampler, it is characterized in that the diameter of letting out the slurry through hole is 5mm.
6. as claimed in claim 1ly dash, the drilled pile sampler, it is characterized in that the diameter of auxiliary through hole is 3mm.
7. as claimed in claim 1ly dash, the drilled pile sampler, it is characterized in that the height of cylindrical shell is 150mm, the thickness of barrel is 3mm.
8. as claimed in claim 1ly dash, the drilled pile sampler, it is characterized in that the cross section of cylindrical shell be a circle, the external diameter of cylindrical shell is 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220270502 CN202595721U (en) | 2012-06-08 | 2012-06-08 | Punched and bored pile sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220270502 CN202595721U (en) | 2012-06-08 | 2012-06-08 | Punched and bored pile sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202595721U true CN202595721U (en) | 2012-12-12 |
Family
ID=47313271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220270502 Expired - Lifetime CN202595721U (en) | 2012-06-08 | 2012-06-08 | Punched and bored pile sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202595721U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104020013A (en) * | 2014-06-13 | 2014-09-03 | 宁波工程学院 | Non-penetrative concrete cylindrical core sampler and operating method thereof |
| CN107091063A (en) * | 2017-05-11 | 2017-08-25 | 能诚集团有限公司 | A kind of drilling slag cleaning device |
| CN108956195A (en) * | 2018-05-22 | 2018-12-07 | 山东大学 | One kind being suitable for grouting model test sand body sampler and application method |
-
2012
- 2012-06-08 CN CN 201220270502 patent/CN202595721U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104020013A (en) * | 2014-06-13 | 2014-09-03 | 宁波工程学院 | Non-penetrative concrete cylindrical core sampler and operating method thereof |
| CN107091063A (en) * | 2017-05-11 | 2017-08-25 | 能诚集团有限公司 | A kind of drilling slag cleaning device |
| CN108956195A (en) * | 2018-05-22 | 2018-12-07 | 山东大学 | One kind being suitable for grouting model test sand body sampler and application method |
| CN108956195B (en) * | 2018-05-22 | 2021-02-23 | 山东大学 | Sand body sampling device suitable for grouting model test and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518027 No. 1043 Shangbu Middle Road, Futian District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Survey and Mapping Institute (Group) Co., Ltd. Address before: 518028 Shenzhen Exploration Building, 1043 Shangbuzhong Road, Futian District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Geotechnical Investigation & Surveying Institute Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |