CN106677701A - Engineering geological drilling construction method based on thin-walled drilling tool - Google Patents
Engineering geological drilling construction method based on thin-walled drilling tool Download PDFInfo
- Publication number
- CN106677701A CN106677701A CN201710058470.7A CN201710058470A CN106677701A CN 106677701 A CN106677701 A CN 106677701A CN 201710058470 A CN201710058470 A CN 201710058470A CN 106677701 A CN106677701 A CN 106677701A
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- drilling
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- outer pipe
- drilling tool
- pipe assembly
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- 238000005553 drilling Methods 0.000 title claims abstract description 131
- 238000010276 construction Methods 0.000 title abstract description 6
- 238000012360 testing method Methods 0.000 claims abstract description 33
- 230000035515 penetration Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 15
- 230000006378 damage Effects 0.000 abstract description 4
- 239000011435 rock Substances 0.000 abstract description 4
- 239000002002 slurry Substances 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses an engineering geological drilling construction method based on a thin-walled drilling tool. According to the engineering geological drilling construction method based on the thin-walled drilling tool, a single rotary double-tube drilling tool is adopted, pressing drilling is conducted in rotation, the full-hole follow-pipe drilling speed is quick, slurry consumption is little, a rock core tube is kept to be in a non-rotation state, and disturbance on a soil layer is small; and when the drilling depth reaches the length of the rock core tube, an oil cylinder lifts the whole drilling machine away from the hole bottom for a section of distance to break off a rock core. The core taking quality is high, and an undisturbed soil sample can be extracted; during core taking and a standard penetration test, a drill rod and an outer tube assembly are kept in a drilled hole to be still all the time, the hole wall is protected, and damage, caused by repeatedly drill pipe lifting, to the hole wall is avoided; and meanwhile, friction between a test rod and the hole wall is reduced, uncertain factors are reduced, and the test result is more accurate.
Description
Technical field
The present invention relates to engineering geological drilling technical field, more particularly to a kind of engineering geological drilling based on thin-walled drilling tool
Construction method.
Background technology
Engineering geological drilling is, according to certain purpose and requirement, using drilling toolses stratum to be pierced, and takes out core and soil
To verify geological condition and foundation capability, this needs to creep into topsoil and has special sampling requirement sample, but also needs
Special test job carried out in drilling, take undisturbed soil sample to be one of purpose of engineering drilling, this is to determine soil
The physico-mechanical propertieses such as the capacity of natural structure, density, temperature, shear strength and coefficient of compressibility, to carry out rock soil characteristics
The bearing capacity and stability of soil layer are described and determined, for all kinds of engineering constructions reliable design considerationss are provided.
Engineering geological drilling most widely used at present is to utilize spindle drill（Such as XY-1 or XY-2 types）With single tube drilling tool, use
Carbide drill machinery rotation method is crept into, water drilled dry of not bothering to see me out, and 0.5 ~ 2 meter of each drilling depth carries a wammel, coring and is entered
Need to put forward a complete set of drill rod boring tool from hole during row standard penetration test (SPT), the maximum advantage of this method is low cost, behaviour
Make simple, but limitation, the shortcoming of rig drilling tool is also clearly, it is big to soil layer disturbance due to being crept into using single tube, intricately
Layer is difficult to extract undisturbed soil sample, causes core quality not good；In coring and standard penetration test (SPT), in addition it is also necessary to lift repeatedly or put down
Whole drilling rod and drilling tool, are easily destroyed hole wall, and Jing often falls the phenomenons such as block, collapse hole, causes lock of tool drilling；Additionally, carry out
During standard penetration test (SPT), drilling rod is subject to hammering generation elastic deformation easily to clash into hole wall, affects hole wall to stablize, while drilling rod and hole wall
Frictional influence measuring accuracy.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the invention provides a kind of engineering geological drilling based on thin-walled drilling tool
Construction method, it adopts single rotary double core barrel complete opening pipe-following drilling, in coring and standard penetration test (SPT), drilling rod and outer pipe assembly
Then all the time drilling in remain stationary as, to soil layer disturb it is little, protection hole wall damage.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of Engineering Geologic Drilling Practice method based on thin-walled drilling tool, it is characterised in that comprise the following steps：
Step one, selection drilling tool, the drilling tool adopts the thin-walled drilling tool of single-action twin-pipes, the drilling tool to include outer pipe assembly and inner tube
Assembly, the outer pipe assembly includes outer tube and the thin drilling bit installed in outer tube lower end, and said inner tube assembly includes core barrel
With can bullet card of the holding in outer pipe assembly；
Step 2, by thin drilling bit be arranged on outer tube lower end, and by core barrel be arranged on bullet card lower end, it is total that bullet card is suspended on outer tube
Into interior, outer pipe assembly upper end is connected by drilling rod with the unit head of rig；
Step 3, the unit head of rig drive drilling rod to drive the thin drilling bit rotary cutting ground on outer pipe assembly, oil cylinder pressurization
Feeding, and core barrel keeps not rotation status and covers coring, core is constantly entered in core barrel；
Step 4, when drilling depth reach the length of core barrel after, oil cylinder by whole drilling tool lift-off bottom hole a small distance with
Core is pulled off, and drilling rod is fixed by the clamp holder clamping of rig；
Step 5, wire line coring fisher is put down, the inner tube assembly for filling core is salvaged to come, and drilling rod and outer pipe assembly are then
Remain stationary as, change another set of inner tube assembly to be reentered in outer pipe assembly the drilling for carrying out next round；
Step 6, repeat step three are to step 5, until drilling is to after the depth of expected probing, oil cylinder is by whole drilling tool lift-off hole
Bottom a small distance puts down wire line coring fisher to pull off core, and the inner tube assembly for filling core is salvaged to come, and drilling rod
Remain stationary as in drilling with outer pipe assembly；
Step 7, standard penetrometer is coupled together by reference test bar one by one, through drilling rod and outer pipe assembly drilling bottom is delivered to
Portion；
Step 8, the top connection mark of reference test bar pass through hammer seat, and the mode for passing through hammer freely falling body using the mark above reference test bar is impacted
Mark passes through hammer seat, carries out standard penetration test (SPT), and during testing, drilling rod and outer pipe assembly are remained stationary as in drilling；
After the completion of step 9, Standard piercing experiment, rapidly standard penetrometer is put forward using main winch.
Used as the improvement of above-mentioned technical proposal, in step 4 and step 6, oil cylinder is by whole drilling tool lift-off away from bottom hole
100mm is sentenced and is pulled off core.
Used as the improvement of above-mentioned technical proposal, the minimum diameter of the outer pipe assembly is not less than 56mm, the Standard piercing
The maximum outside diameter of device is less than 50mm.
Used as the improvement of above-mentioned technical proposal, the external diameter of the thin drilling bit is 75.7mm, and internal diameter is 56mm.
As the improvement of above-mentioned technical proposal, in step 2, adjust and check the length of inner tube assembly, it is ensured that its not with
The stepped portions of drill bit inwall are not contacted, and are crossed water space and are less than 1mm.
Beneficial effects of the present invention have：
This drilling operation method adopts single rotary double core barrel complete opening pipe-following drilling, the press-in drilling in revolution, and rate of penetration is very
Hurry up, mud consumption is few, core barrel keeps not rotation status, little, coring quality height is disturbed to soil layer, can extract undisturbed soil sample,
When coring and standard penetration test (SPT), drilling rod and outer pipe assembly are then remained stationary as in drilling all the time, protection hole wall, it is to avoid carry repeatedly
Destruction hole wall is bored, while also reducing the friction of reference test bar and hole wall, uncertain factor is reduced, makes result of the test more accurate.
Description of the drawings
Below in conjunction with the accompanying drawings and specific embodiment the invention will be further described, wherein：
Fig. 1 is structural representation of the embodiment of the present invention when coring is crept into；
Fig. 2 is structural representation of the embodiment of the present invention in standard penetration test (SPT).
Specific embodiment
As shown in figure 1, thin-walled drilling tool of the drilling tool in the present invention for single-action twin-pipes, including outer pipe assembly 1 and plug outside
Inner tube assembly 2 in pipe assembly 1, the outer pipe assembly 1 include be sequentially connected from top to bottom adapter coupling 11, bullet card room 12,
Seat ring 13, outer tube 14, reamer 15 and thin drilling bit 16, the minimum diameter of the outer pipe assembly 1 is not less than 56mm, thin-walled drill
16 are made using hard alloy, and compact bit or diamond impregnated bit may also be employed, and external diameter is 75.7mm, and internal diameter is
56mm, said inner tube assembly 2 includes bore head assembly 21, core barrel 22, clip spring seat 23 and the card being sequentially connected from top to bottom
Spring 24, seat ring 13 can limited support bore head assembly 21, bore head assembly 21 is provided with can coordinate clamping with adapter coupling 11
Bullet card 25.
As shown in Fig. 2 being equipped with reference test bar 3 in outer pipe assembly 1, the upper end of reference test bar 3 connection mark passes through hammer seat 4, lower end connection
Standard penetrometer 5, the maximum outside diameter of standard penetrometer 5 is less than 50mm, to insert in outer pipe assembly 1.
A kind of Engineering Geologic Drilling Practice method based on thin-walled drilling tool of the present invention, comprises the following steps：
Step one, selection drilling tool, the drilling tool adopts the thin-walled drilling tool of single-action twin-pipes；
Step 2, by thin drilling bit 16 be arranged on the lower end of outer tube 14, and by core barrel 22 be arranged on the lower end of bullet card 25, bullet card 25 hang
Hang in bullet card room 12, adjust and check the length of inner tube assembly 2, it is ensured that clip spring seat 23 not with the stepped portions of the inwall of drill bit 16
Do not contact, cross water space and be less than 1mm, the upper end of adapter coupling 11 is connected by drilling rod with the unit head of rig；
Step 3, the unit head of rig drive drilling rod to drive the rotary cutting ground of thin drilling bit 16 on outer pipe assembly 1, oil cylinder to add
It is pressed into and core barrel 22 keeps not rotation status and covers coring, and core is constantly entered in core barrel 22；
Step 4, when drilling depth reach the length of core barrel 22 after, oil cylinder sentences whole drilling tool lift-off away from bottom hole 100mm
Core is pulled off, and drilling rod is fixed by the clamp holder clamping of rig；
Step 5, wire line coring fisher is put down, the inner tube assembly 2 for filling core is salvaged to come, and drilling rod and outer pipe assembly 1
Then remain stationary as, change another set of inner tube assembly 2 to be reentered in outer pipe assembly 1 drilling for carrying out next round；
Step 6, repeat step three are to step 5, until drilling is to after the depth of expected probing, oil cylinder by whole drilling tool lift-off away from
Bottom hole 100mm is sentenced and pulls off core, puts down wire line coring fisher, and the inner tube assembly 2 for filling core is salvaged to come, and drilling rod
Remain stationary as in drilling with outer pipe assembly 1；
Step 7, standard penetrometer 5 is coupled together by reference test bar 3 one by one, through drilling rod and outer pipe assembly 1 drilling is delivered to
Bottom；
Step 8, the top connection mark of reference test bar 3 pass through hammer seat 4, and the mode for passing through hammer freely falling body using the mark of the top of reference test bar 3 is hit
Hammer seat 4 is passed through in mark, carries out standard penetration test (SPT), and during testing, drilling rod and outer pipe assembly 1 are remained stationary as in drilling；
After the completion of step 9, Standard piercing experiment, rapidly standard penetrometer 5 is put forward using main winch.
In two the step of the inventive method, clip spring seat 23 is not contacted with the stepped portions of the inwall of drill bit 16, is conveniently sent
Water drilling enters, and crosses water space and be less than 1mm, and soil can be avoided to enter in drilling process between core barrel 22 and outer tube 14
Gap in, prevent from causing stuck core barrel 22.
Drilling tool press-in drilling in revolution, complete opening pipe-following drilling speed is very fast, in sandstone stratum and cobblestone stratum energy
Enough that 25 meters or so were crept in 8 hours, mud consumption is few, little to soil layer disturbance because core barrel 22 keeps not rotation status, takes
Core quality is high, can extract undisturbed soil sample, and in coring and standard penetration test (SPT), drilling rod and outer pipe assembly 1 are then interior in drilling all the time
Remain stationary as, play a part of to protect hole wall, it is to avoid carry brill destruction hole wall repeatedly, while also reducing rubbing for reference test bar 3 and hole wall
Wipe, it is to avoid hole wall is clashed into during 3 flexural deformation of reference test bar, reduce uncertain factor, make result of the test more accurate.
The above, simply better embodiment of the invention, but the present invention is not limited to above-described embodiment, as long as
It reaches the technique effect of the present invention with any same or similar means, should all belong to protection scope of the present invention.
Claims (5)
1. a kind of Engineering Geologic Drilling Practice method based on thin-walled drilling tool, it is characterised in that comprise the following steps：
Step one, selection drilling tool, the drilling tool adopts the thin-walled drilling tool of single-action twin-pipes, the drilling tool to include outer pipe assembly and inner tube
Assembly, the outer pipe assembly includes outer tube and the thin drilling bit installed in outer tube lower end, and said inner tube assembly includes core barrel
With can bullet card of the holding in outer pipe assembly；
Step 2, by thin drilling bit be arranged on outer tube lower end, and by core barrel be arranged on bullet card lower end, it is total that bullet card is suspended on outer tube
Into interior, outer pipe assembly upper end is connected by drilling rod with the unit head of rig；
Step 3, the unit head of rig drive drilling rod to drive the thin drilling bit rotary cutting ground on outer pipe assembly, oil cylinder pressurization
Feeding, and core barrel keeps not rotation status and covers coring, core is constantly entered in core barrel；
Step 4, when drilling depth reach the length of core barrel after, oil cylinder by whole drilling tool lift-off bottom hole a small distance with
Core is pulled off, and drilling rod is fixed by the clamp holder clamping of rig；
Step 5, wire line coring fisher is put down, the inner tube assembly for filling core is salvaged to come, and drilling rod and outer pipe assembly are then
Remain stationary as, change another set of inner tube assembly to be reentered in outer pipe assembly the drilling for carrying out next round；
Step 6, repeat step three are to step 5, until drilling is to after the depth of expected probing, oil cylinder is by whole drilling tool lift-off hole
Bottom a small distance puts down wire line coring fisher to pull off core, and the inner tube assembly for filling core is salvaged to come, and drilling rod
Remain stationary as in drilling with outer pipe assembly；
Step 7, standard penetrometer is coupled together by reference test bar one by one, through drilling rod and outer pipe assembly drilling bottom is delivered to
Portion；
Step 8, the top connection mark of reference test bar pass through hammer seat, and the mode for passing through hammer freely falling body using the mark above reference test bar is impacted
Mark passes through hammer seat, carries out standard penetration test (SPT), and during testing, drilling rod and outer pipe assembly are remained stationary as in drilling；
After the completion of step 9, Standard piercing experiment, rapidly standard penetrometer is put forward using main winch.
2. a kind of Engineering Geologic Drilling Practice method based on thin-walled drilling tool according to claim 1, it is characterised in that
In step 4 and step 6, whole drilling tool lift-off is sentenced and pulls off core by oil cylinder away from bottom hole 100mm.
3. a kind of Engineering Geologic Drilling Practice method based on thin-walled drilling tool according to claim 1, it is characterised in that institute
The minimum diameter for stating outer pipe assembly is not less than 56mm, and the maximum outside diameter of the standard penetrometer is less than 50mm.
4. a kind of Engineering Geologic Drilling Practice method based on thin-walled drilling tool according to claim 1 or power 3, its feature exists
In the external diameter of the thin drilling bit is 75.7mm, and internal diameter is 56mm.
5. a kind of Engineering Geologic Drilling Practice method based on thin-walled drilling tool according to claim 1, it is characterised in that
In step 2, the length of inner tube assembly is adjusted and checked, it is ensured that it is not contacted with the stepped portions of drill bit inwall, cross water space
Less than 1mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710058470.7A CN106677701B (en) | 2017-01-23 | 2017-01-23 | A kind of Engineering Geologic Drilling Practice method based on cord coring drill |
| PCT/CN2018/080003 WO2018133886A1 (en) | 2017-01-23 | 2018-03-22 | Rope coring drill-based engineering geology drilling construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710058470.7A CN106677701B (en) | 2017-01-23 | 2017-01-23 | A kind of Engineering Geologic Drilling Practice method based on cord coring drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106677701A true CN106677701A (en) | 2017-05-17 |
| CN106677701B CN106677701B (en) | 2018-08-17 |
Family
ID=58860255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710058470.7A Active CN106677701B (en) | 2017-01-23 | 2017-01-23 | A kind of Engineering Geologic Drilling Practice method based on cord coring drill |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106677701B (en) |
| WO (1) | WO2018133886A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018133886A1 (en) * | 2017-01-23 | 2018-07-26 | 珠海市英格尔特种钻探设备有限公司 | Rope coring drill-based engineering geology drilling construction method |
| CN108487871A (en) * | 2018-04-24 | 2018-09-04 | 珠海市万顺睿通科技有限公司 | A kind of coal drilling device |
| CN110630200A (en) * | 2019-10-10 | 2019-12-31 | 中交第二航务工程局有限公司 | Simple and easy super-large-diameter core taking and drilling sample extraction device and core taking method |
| CN111472705A (en) * | 2020-05-11 | 2020-07-31 | 珠海市英格尔特种钻探设备有限公司 | In-situ soil sample collecting device and method based on rope core drilling tool |
| CN111502581A (en) * | 2020-04-27 | 2020-08-07 | 深圳大学 | Dry drill slag-dragging operation device and use method thereof |
| CN113294107A (en) * | 2021-06-24 | 2021-08-24 | 珠海市英格尔特种钻探设备有限公司 | Spiral rope core drill and construction method thereof |
| CN114086902A (en) * | 2021-11-17 | 2022-02-25 | 浙江海聚科技有限公司 | Pipe following core drill and drilling construction process |
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| CN111502581A (en) * | 2020-04-27 | 2020-08-07 | 深圳大学 | Dry drill slag-dragging operation device and use method thereof |
| CN111502581B (en) * | 2020-04-27 | 2023-09-01 | 深圳大学 | Dry drilling and slag dragging operation device and use method thereof |
| CN111472705A (en) * | 2020-05-11 | 2020-07-31 | 珠海市英格尔特种钻探设备有限公司 | In-situ soil sample collecting device and method based on rope core drilling tool |
| CN113294107A (en) * | 2021-06-24 | 2021-08-24 | 珠海市英格尔特种钻探设备有限公司 | Spiral rope core drill and construction method thereof |
| CN114086902A (en) * | 2021-11-17 | 2022-02-25 | 浙江海聚科技有限公司 | Pipe following core drill and drilling construction process |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018133886A1 (en) | 2018-07-26 |
| CN106677701B (en) | 2018-08-17 |
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Address after: 519000 block a, No.12, Shenghui street, Jinding, high tech Zone, Zhuhai City, Guangdong Province Patentee after: ZHUHAI EGR SPECIAL DRILLING EQUIPMENT Co.,Ltd. Address before: 519000, room 29, 402 middle treasure road, Hengqin Town, Hengqin District, Guangdong, Zhuhai Patentee before: ZHUHAI EGR SPECIAL DRILLING EQUIPMENT Co.,Ltd. |
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Address after: 519000 block a, No.12, Shenghui street, Jinding, high tech Zone, Zhuhai City, Guangdong Province Patentee after: Guangdong Engel Geological Equipment Technology Co.,Ltd. Address before: 519000 block a, No.12, Shenghui street, Jinding, high tech Zone, Zhuhai City, Guangdong Province Patentee before: ZHUHAI EGR SPECIAL DRILLING EQUIPMENT Co.,Ltd. |
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