CN102913132A - Plagioclase processing method for drilling pile near karst area of existing railway - Google Patents
Plagioclase processing method for drilling pile near karst area of existing railway Download PDFInfo
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- CN102913132A CN102913132A CN2012103748265A CN201210374826A CN102913132A CN 102913132 A CN102913132 A CN 102913132A CN 2012103748265 A CN2012103748265 A CN 2012103748265A CN 201210374826 A CN201210374826 A CN 201210374826A CN 102913132 A CN102913132 A CN 102913132A
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Abstract
The invention relates to a hole forming technology for a drilling pile at a karst area and discloses a slope rock processing method for the drilling pile near the karst area of an existing railway. The construction method comprises the following steps: S1, a percussion drill is adopted for drilling a hole at a to-be-drilled area; S2, after the percussion drill is used for drilling to the back of the slope rock, the percussion drill is lifted out of the hole timely, and at the same time, a slurry pipe is suspended in for slurry circulation; S3, a plurality of small holes are drilled at the upper part of the slope rock by an exploration drill, so as to destroy the integrity of the slope rock to reduce the strength; S4, an excavator is adopted for backfill rubbles in the pile, and the percussion drill is adopted for realizing small-stroke impact so as to hit the backfilled rubbles densely; and S5, after the backfilled rubbles are hit densely, the percussion drill is adopted for continuous drilling. With the adoption of the hole forming technology and the processing method, the problem that the rectification is difficult after hole shift when the slope rock appears in the construction for the drilling pile at the karst area can be solved, and the construction efficiency as well as the safety and the reliability of surrounding buildings such as the existing railway can be improved.
Description
Technical field
The present invention relates to karst region drilled pile hole creating technology, particularly relate to a kind of both oblique rock processing methods of wired karst region drilled pile of closing on.
Background technology
At present, Line for Passenger Transportation karst region drilled pile is when creeping into, enter rock by often running into the slope rock, traditional processing method has two kinds usually, and the one, drill bit is proposed outside the hole, then the backfill slabstone again creeps into and rectifies a deviation, this kind method is the most economical, and is also commonly used, and its shortcoming is when running into the scar that the gradient rises and falls large and hard, because the slabstone insufficient strength of backfill, rectifying effect is undesirable; The 2nd, utilize underwater demolition, the scar that tilts is destroyed, then the backfill slabstone creeps into again, the shortcoming of the method is that security risk is large when closing on both wired constructions, the use that normally is under an embargo, in addition, the dose of explosion control is careless, the phenomenon in the hole that easily occurs collapsing.
Summary of the invention
The technical problem that (one) will solve
The technical problem to be solved in the present invention is when how to solve the karst region drilled pile construction, occurs the problem that is difficult to rectify a deviation behind the inclined to one side hole when running into the slope rock.
(2) technical scheme
In order to solve the problems of the technologies described above, a kind of both oblique rock processing methods of wired karst region drilled pile of closing on provided by the invention may further comprise the steps: S1, employing percussive drill are treated to bore to distinguish and are holed; S2, creep into to the rock of slope, in time percussive drill is proposed outside the hole, hang in simultaneously mud tube and carry out mud circulation; S3, geological drilling rig bore a plurality of apertures on the top of slope rock, destroy the globality of slope rock to reduce its intensity; S4, employing digging machine backfill slabstone in stake, and adopt percussive drill to carry out little stroke and impact to beat the backfill slabstone closely knit; S5, the backfill slabstone is made closely knit rear employing percussive drill continue to creep into.
Wherein, described percussive drill is placed on the steel sheet pile.
Wherein, the steel casing in stake arranges sleeper, and described geological drilling rig is placed on the sleeper.
Wherein, described geological drilling rig bores 2 ~ 8 apertures on the top of slope rock.
Wherein, adopt digging machine backfill in stake to surpass the slabstone of scar 20 ~ 30cm.
(3) beneficial effect
A kind of both oblique rock processing methods of wired karst region drilled pile of closing on that technique scheme provides, after opening aperture, the slope rock carries out the backfill slabstone, and adopt percussive drill to carry out continuing to creep into after little stroke impacts, when efficiently solving the karst region drilled pile construction, occur the problem that is difficult to rectify a deviation behind the inclined to one side hole when running into the slope rock, improved efficiency of construction and surrounding building such as both wired security reliability.
The specific embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is described in further detail.Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.
A kind of both oblique rock processing methods of wired karst region drilled pile of closing on of the present invention may further comprise the steps: S1, employing percussive drill are treated to bore to distinguish and are holed; S2, creep into to the rock of slope, in time percussive drill is proposed outside the hole, hang in simultaneously mud tube and carry out mud circulation; S3, geological drilling rig bore a plurality of apertures on the top of slope rock, destroy the globality of slope rock to reduce its intensity; S4, employing digging machine backfill slabstone in stake, and adopt percussive drill to carry out little stroke and impact to beat the backfill slabstone closely knit; S5, the backfill slabstone is made closely knit rear employing percussive drill continue to creep into.
Percussive drill adopts large stroke (height of drill bit is 2-3 rice) when creeping in the stake; When being crept into, adopts on the slope rock little stroke (height of drill bit is 0.5-1 rice).
Percussive drill is placed on the steel sheet pile, rig substructure is propped up pad reinforce, in case surface subsidence, rig sinks and topples in the time of can effectively preventing from collapsing the hole, jeopardizes both wired safety.
For so that geological drilling rig is steady, the steel casing in stake arranges the sleeper more than two, and geological drilling rig is placed on the sleeper.
In order to strengthen the firm of steel casing, steel casing and steel sheet pile are welded to connect.
Wherein, geological drilling rig bores 2 ~ 8 apertures on the top of slope rock.Backfill surpasses the slabstone of scar 20 ~ 30cm in stake.
Technique scheme provides a kind ofly both closes on that the specific works process of the oblique rock processing method of wired karst region drilled pile is: when construction both closes on wired karst region drilled pile, at first adopt the percussive drill perforate to creep into, before drilled pile goes into operation, to tell somebody what one's real intentions are to the rig operator by stake, the content of telling somebody what one's real intentions are comprises geological condition, the solution cavity size, enter the rock position, scar fluctuating situation and construction requirement etc., when percussive drill is in place, under percussive drill, lay the long steel sheet pile (or other steel work) of 2 couples totally 4 (or 3 couples 6) each 10 ~ 15m, rig substructure is propped up pad to be reinforced, bury simultaneously the steel casing of appropriate depth in stake underground, steel casing and steel sheet pile are welded to connect; When percussive drill normally is drilled into the slope rock, inclined to one side hole appears and after, in time the drill bit with percussive drill proposes to adopt simultaneously the attached wire rope of rig that mud tube is hung in the hole outside the stake, carries out mud circulation, with anti-collapse hole; Place two sleepers at the steel casing simultaneously, with firm the placing on the sleeper of geological drilling rig; Utilize geological drilling rig to bore 2-8 aperture (this little hole number is decided on stake footpath size and formation hardness) at the higher position of inclination scar, to destroy the globality of rock, its intensity is obviously descended; After boring is finished, geological drilling rig is shifted out, utilize digging machine backfill slabstone in stake, slabstone surpasses 20 ~ 30 centimetres of scars and gets final product, and again percussive drill is put into stake, adopts first little stroke to impact, until the slabstone with backfill impact closely knit after, adopt again large stroke to continue normally to creep into.After percussive drill crept into again, the phenomenon in inclined to one side hole can not appear.
When the present invention efficiently solves the karst region drilled pile construction, occur the problem that is difficult to rectify a deviation behind the inclined to one side hole during slope scar that runs into particularly that the gradient rises and falls large, improved efficiency of construction, can the building around it not impacted such as both wired safety.
Long Line for Passenger Transportation rivers and mountains, Hangzhoupro grand bridge both closes in wired Bored Pile Foundation work progress, the part pile foundation runs into the large limestone of domatic fluctuating, use conventional method, utilize the backfill slabstone to rectify a deviation, but backfill repeatedly repeatedly, drilling depth continues to occur larger inclined to one side hole after less than 10cm after the general correction, have a strong impact on construction speed, both adopt the present embodiment to provide to close on the oblique rock processing method of wired karst region drilled pile to construct, the rectifying effect of slope rock is obvious, can greatly improve efficiency of construction and reach both wired security reliability.
The above only is preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (5)
1. one kind is closed on both oblique rock processing methods of wired karst region drilled pile, it is characterized in that, may further comprise the steps:
S1, employing percussive drill are treated to bore to distinguish and are holed;
S2, creep into to the rock of slope, in time percussive drill is proposed outside the hole, hang in simultaneously mud tube and carry out mud circulation;
S3, geological drilling rig bore a plurality of apertures on the top of slope rock, destroy the globality of slope rock to reduce its intensity;
S4, employing digging machine backfill slabstone in stake, and adopt percussive drill to carry out little stroke and impact to beat the backfill slabstone closely knit;
S5, the backfill slabstone is made closely knit rear employing percussive drill continue to creep into.
2. both oblique rock processing methods of wired karst region drilled pile of closing on as claimed in claim 1 is characterized in that, described percussive drill is placed on the steel sheet pile.
3. both oblique rock processing methods of wired karst region drilled pile of closing on as claimed in claim 1 is characterized in that, the steel casing in stake arranges sleeper, and described geological drilling rig is placed on the sleeper.
4. both oblique rock processing methods of wired karst region drilled pile of closing on as claimed in claim 1 is characterized in that, described geological drilling rig bores 2 ~ 8 apertures on the top of slope rock.
5. both oblique rock processing methods of wired karst region drilled pile of closing on as claimed in claim 1 is characterized in that, adopt digging machine backfill in stake to surpass the slabstone of scar 20 ~ 30cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210374826.5A CN102913132B (en) | 2012-09-29 | 2012-09-29 | Close on both wired karst district boring oblique rock treatment processs of stake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210374826.5A CN102913132B (en) | 2012-09-29 | 2012-09-29 | Close on both wired karst district boring oblique rock treatment processs of stake |
Publications (2)
| Publication Number | Publication Date |
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| CN102913132A true CN102913132A (en) | 2013-02-06 |
| CN102913132B CN102913132B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210374826.5A Active CN102913132B (en) | 2012-09-29 | 2012-09-29 | Close on both wired karst district boring oblique rock treatment processs of stake |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088832A (en) * | 2013-02-21 | 2013-05-08 | 北京鑫实路桥建设有限公司 | Annular type impact method for digging rock at bottom of drilled pile shaft |
| CN113585254A (en) * | 2021-07-28 | 2021-11-02 | 安徽水安建设集团股份有限公司 | Construction method of cast-in-situ bored pile with upper soft and lower hard inclined boundary stratum |
| CN113638692A (en) * | 2021-08-03 | 2021-11-12 | 中国二十冶集团有限公司 | Drilling method for inclined rock surface |
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| CN102031775A (en) * | 2010-06-12 | 2011-04-27 | 中铁十六局集团有限公司 | Construction technology of drilled pile in hard oblique rocks by medium hole blasting |
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2012
- 2012-09-29 CN CN201210374826.5A patent/CN102913132B/en active Active
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| FR2852352A1 (en) * | 2003-07-10 | 2004-09-17 | Cie Du Sol | Drilling machine comprises device for correcting verticality |
| CN101761072A (en) * | 2008-12-24 | 2010-06-30 | 上海市基础工程公司 | Construction process for bored pile close to flood wall through riprap layer |
| CN101713278A (en) * | 2009-11-19 | 2010-05-26 | 江苏扬建集团有限公司 | Drilling pouring pile hole formation one-pile double-machine construction method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088832A (en) * | 2013-02-21 | 2013-05-08 | 北京鑫实路桥建设有限公司 | Annular type impact method for digging rock at bottom of drilled pile shaft |
| CN113585254A (en) * | 2021-07-28 | 2021-11-02 | 安徽水安建设集团股份有限公司 | Construction method of cast-in-situ bored pile with upper soft and lower hard inclined boundary stratum |
| CN113638692A (en) * | 2021-08-03 | 2021-11-12 | 中国二十冶集团有限公司 | Drilling method for inclined rock surface |
| CN113638692B (en) * | 2021-08-03 | 2022-11-25 | 中国二十冶集团有限公司 | Drilling method for inclined rock surface |
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| Publication number | Publication date |
|---|---|
| CN102913132B (en) | 2016-06-01 |
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