CN201857610U - Steel casing - Google Patents
Steel casing Download PDFInfo
- Publication number
- CN201857610U CN201857610U CN2010206085405U CN201020608540U CN201857610U CN 201857610 U CN201857610 U CN 201857610U CN 2010206085405 U CN2010206085405 U CN 2010206085405U CN 201020608540 U CN201020608540 U CN 201020608540U CN 201857610 U CN201857610 U CN 201857610U
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- steel casing
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- casing
- wall
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Abstract
The utility model belongs to the field of construction of traffic engineering, and particularly relates to a steel casing for a bored pile foundation. The steel casing takes the shape of a sleeve; constant convex parts for fixing are arranged on an outer wall or an end surface of the steel casing. Therefore, not only is the fixation of a steel casing body achieved, but also subsequent drilling operation of a driller can not be obstructed.
Description
Technical field
The utility model belongs to the traffic engineering construction field, is specifically related to the steel casing that a kind of pile foundation of holing is used.
Background technology
At present, in the boring pile foundation construction that traffic engineering is built, a large amount of appearance of rotary drilling rig both at home and abroad, the quality and the speed of pile have been improved, but running into stake top soil (mud) matter relatively poor or more (exist different geology bearing capacities or intermediate layer to accompany stream as the limit of being impacted for a long time, riverbank and mould the shape soil layer) under the complex geological conditions, also there is not ripe solution, the slower rig types of pile-forming speed such as Churn drill or rotary rig of often having to consider to adopt, and after more being smooth on construction ground getting well, the heavy steel casing of establishing of the method for burying is dug in employing, or adopt the drill bit plunging directly to be pressed into the steel casing in the earth, the internal action power that relies on the outer wall of steel casing to resist soil layer is with fixing pile foundation in soil (mud) matter of stake top.Stake top soil (mud) matter is soft, bearing capacity is lower, the hole phenomenon of still can collapsing, even the steel casing that precompressed is buried also falls in the hole and can't extract, and causing in former stake position can't normal construction, has to carry out to change the rig type after the hole backfill or construct in the pile foundation position again, waste time and energy, bring very big puzzlement to the constructor, and after construction was finished, the steel casing was difficult for also taking out.Appear at steel casing top barrel afterwards and offered the two through hole of symmetry, passing through hole by fixed bar is fixed in steel casing body on the ground, the steel casing that can effectively avoid when running into stake top soil (mud) matter, the taking place phenomenon in the hole that drops, and when the steel casing reclaims, can rely on machinery directly it to be extracted.Still there is following problem in said method: at first, because fixed bar radially crosses whole casing by the through hole that is opened on the casing wall, this has caused obstacle just for the follow-up drilling operation of rig; Secondly, because when construction, pull rope passes through hole and draws the steel casing, because the wall thickness of steel casing is thinner, simultaneously the through hole on the casing often all be directly on barrel scorification form, the a large amount of burrs of endoporus marginal existence of itself, with the through hole contact position, pull rope can inevitably wear and tear, and pull rope and steel casing all reuse, at the pull rope by wearing and tearing when pulling up the steel casing, and pull rope even may further rupture, cause the steel casing from the pull rope tenesmus that comes off, thereby jeopardize personnel's personal safety on every side.
Summary of the invention
The purpose of this utility model provides a kind of easy to operate steel casing, can effectively fixedly make things convenient for follow-up drilling construction in the steel casing.
For achieving the above object, the utility model has adopted following technical scheme: a kind of steel casing, and the profile of described steel casing is the cover tubular, and the steel casing is provided with the protuberance that is used for fixing on its outer wall or end face.
The beneficial effects of the utility model are: after adopting said structure, avoid fixed bar to cross whole steel casing and hindered the problem of boring processing, thereby promptly realized fixing to steel casing body, can not hinder the follow-up drilling operation of rig again, when also effectively having reduced simultaneously lifting pull rope with the wear extent of casing junction.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the user mode schematic diagram fixedly the time for the utility model;
Fig. 3 is the vertical view of Fig. 2.
The specific embodiment
A kind of steel casing, the profile of described steel casing 10 is the cover tubular, and steel casing 10 is provided with the protuberance 11 that is used for fixing on its outer wall or end face, as Fig. 1.
Since steel casing 10 be embedded in underground, only having seldom, part is higher than the face of land, so protuberance 11 is arranged at the upper end of steel casing 10 outer walls, on the one hand fixedly to use fixed bar 20 holders to support below protuberance 11 during steel casing 10, can implement the overall fixed of steel casing 10, as shown in Figure 2, on the other hand at pull rope fixedly during steel casing 10, the upper end that its fixed point is positioned at steel casing 10 outer walls can increase the stability of steel casing 10, simultaneously be arranged on steel casing 10 outer wall bottoms with protuberance 11 and compare, protuberance 11 also can not produce extracting of steel casing 10 and hinder when extracting of later stage steel casing 10 operated.The preferred fixed bar 20 of the utility model is an i iron.
As further preferred version of the present utility model, protuberance 11 is two and along the axis shaft symmetric arrangement of steel casing 10, as Fig. 1-3, the benefit of Bu Zhiing is on the one hand to use fixed bar 20 fixedly during steel casing 10 like this, the said structure design can make steel casing 10 whole stress equalizations, even soil layer geology is relatively poor, still can guarantee the stability of steel casing 10 integral body by the length of lengthening fixed bar 20, on the other hand in the time need extracting steel casing 10, hitch both sides protuberance 11 with pull rope, the stability of casing 11 in the time of can guaranteeing to lift by crane steel casing 11 is avoided its generation phenomenon of toppling.
Further, pull rope skids off protuberance 11 when avoiding pull rope to sling steel casing 10 by protuberance 11, and protuberance 11 profiles are made as bending, and shown in Fig. 1-2, its bending peristome is towards the bottom direction of steel casing 10.
Further, consider protuberance 11 desirable strengths and use cost thereof, protuberance 11 can adopt round steel or the bending of shaped steel two ends to form, and shown in Fig. 1-2, its bending joint portion is the right angle.Also can select for use protuberance 11 to be channel-section steel, preferred herein channel-section steel is the inequilateral channel-section steel.The outside and steel casing 11 outer walls of the wing plate of its long side are affixed, thereby have guaranteed the reliably affixed of 10 of protuberance 11 and steel casings.
Claims (6)
1. steel casing, the profile of described steel casing (10) is the cover tubular, it is characterized in that: described steel casing (10) is provided with the protuberance (11) that is used for fixing on its outer wall or end face.
2. steel casing according to claim 1 is characterized in that: described protuberance (11) is a hanger, and described protuberance (11) is arranged at the upper end of steel casing (10) outer wall.
3. steel casing according to claim 1 is characterized in that: described protuberance (11) is two and along the axis shaft symmetric arrangement of steel casing (10).
4. according to claim 1 or 2 or 3 described steel casings, it is characterized in that: described protuberance (11) profile is bending, and its bending peristome is towards the bottom direction of steel casing (10).
5. steel casing according to claim 4 is characterized in that: described protuberance (11) is that round steel or the bending of shaped steel two ends form, and its bending joint portion is the right angle.
6. steel casing according to claim 4 is characterized in that: described protuberance (11) is a channel-section steel, and the outside of one side wing and steel casing (11) outer wall are affixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206085405U CN201857610U (en) | 2010-11-16 | 2010-11-16 | Steel casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206085405U CN201857610U (en) | 2010-11-16 | 2010-11-16 | Steel casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201857610U true CN201857610U (en) | 2011-06-08 |
Family
ID=44103420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206085405U Expired - Fee Related CN201857610U (en) | 2010-11-16 | 2010-11-16 | Steel casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201857610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107646223A (en) * | 2017-09-28 | 2018-02-02 | 新疆农业科学院土壤肥料与农业节水研究所(新疆维吾尔自治区新型肥料研究中心) | A kind of original soil modification method and its device suitable for heavy salinized ground |
-
2010
- 2010-11-16 CN CN2010206085405U patent/CN201857610U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107646223A (en) * | 2017-09-28 | 2018-02-02 | 新疆农业科学院土壤肥料与农业节水研究所(新疆维吾尔自治区新型肥料研究中心) | A kind of original soil modification method and its device suitable for heavy salinized ground |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20131116 |