CN106917401A - Rubble, pebble layer high-pressure rotary jet grouting pile do not return the processing method of slurry - Google Patents
Rubble, pebble layer high-pressure rotary jet grouting pile do not return the processing method of slurry Download PDFInfo
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- CN106917401A CN106917401A CN201710111752.9A CN201710111752A CN106917401A CN 106917401 A CN106917401 A CN 106917401A CN 201710111752 A CN201710111752 A CN 201710111752A CN 106917401 A CN106917401 A CN 106917401A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Revetment (AREA)
Abstract
The present invention relates to building lot construction field, specifically a kind of rubble, pebble layer high-pressure rotary jet grouting pile do not return the processing method of slurry；It is characterized in that：Including understanding rubble, block stone step with difference and thickness；Early strength agent is added during grouting；High-pressure rotary jet grouting pile machinery is drilled down into by carrying drill bit from ground, meanwhile, whitewashed；Rig is crept into the absolute altitude of design stake bottom, drilling rod is carried upwards, while carrying out multiple spray；In multiple spray process, shadoof speed, drilling rod rotary speed are held in deep low gear in metalling, boulder bed, speed of application is then promoted to middling speed or high speed for cohesive soil, sandy soil layer, when drilling rod is promoted to ground absolute altitude again, completes to circulate for the first time；Treat that cement mortar reaches the presetting period, constructed according to second multiple spray circulation is carried out.Treatment method is applied in special geologic conditions such as rubble, cobbles, the cement mortar of high-pressure rotary-spray can be avoided to be flowed away along the gap of rock or block stone such that it is able to from ensureing the construction quality of high-pressure rotary-spray technique.
Description
Technical field
The present invention relates to building lot construction field, specifically a kind of rubble, pebble layer high-pressure rotary jet grouting pile do not return slurry
Processing method.
Background technology
For high-pressure rotary-spray technique, due to its construction machinery and technology characteristics, cause it for different geology soil layers
With different applicabilities, generally for the geology such as cohesive soil, sandy soil and grain composition continuity preferable gravelly soil soil
Layer has preferable applicability.And the artificial of serious tomography occur for grain composition and fill out the particles such as rubble, severely-weathered hard rock
The larger geological stratification in gap, the cement mortar of high-pressure rotary-spray is easy to be walked along rock or block crack of stone clearance flow so that high-pressure rotary-spray work
Skill applicability is poor, and rotary churning pile pile quality is difficult to be effectively ensured, or even cannot pile.
The content of the invention
It is an object of the present invention to provide one kind can solve the problem that slurry is not returned in the high-pressure rotary jet grouting pile whitewashing of rubble stratum, it is impossible to have
Imitate the construction method of pile.
In order to achieve the above object, the present invention is realized in：
A kind of rubble, pebble layer high-pressure rotary jet grouting pile do not return the processing method of slurry, including
Step 1, after the completion of drilling, according to geology exploration report understand rubble, block stone step with difference and thickness；
Step 2, grouting, the ratio of mud of the slurry that mixed cement during grouting is 0.45:1~0.55:1, while adding early strength agent, early strength agent
Ratio control is 0.5%~2%；
After step 3, high-pressure rotary jet grouting pile machinery are in place, it is drilled down into from ground by carrying drill bit, while drilling, is carried out
Whitewashing, rod boring speed is 7cm ~ 9cm/min, and drilling rod rotary speed keeps low-speed running；
Step 4, when rig creep into design stake bottom absolute altitude after, beginning carry drilling rod upwards, while keep original construction parameter answered
Spray；
In step 5, multiple spray process, shadoof speed, drilling rod rotary speed deep low gear need to be held in metalling, boulder bed,
And speed of application is then promoted to middling speed or high speed for cohesive soil, sandy soil layer, treat that drilling rod is promoted to ground mark again
Gao Shi, completes to circulate for the first time；
Step 6, treat that cement mortar reaches the presetting period, second multiple spray circulation construction is carried out according to step 2~step 5.
Treatment method is applied in special geologic conditions such as rubble, cobbles, can avoid the cement mortar edge of high-pressure rotary-spray
The gap for rock or block stone flows away such that it is able to ensure that high-pressure rotary-spray technique is applied in special geologic conditions such as rubble, cobbles.
Meanwhile, machinery, equipment and material are that job site is existing used by treatment method, therefore with materials, easy to process
Advantage, compared to changing technique, take other engineering methods of additional complementary measure, treatment method has low excellent of construction cost
Gesture.
Brief description of the drawings
Fig. 1 is the operation schematic diagram for the treatment of method.
Specific embodiment
The present invention is further illustrated below by way of specific embodiment.
As shown in figure 1, a kind of rubble, pebble layer high-pressure rotary jet grouting pile do not return the processing method of slurry, including
Step 1, when drilling 1 after the completion of, according to geology exploration report understand rubble, block stone step with difference and thickness；
Step 2, grouting, the ratio of mud of the slurry that mixed cement during grouting is 0.45:1~0.55:1, while adding early strength agent, early strength agent
Ratio control is 0.5%~2%；
After step 3, high-pressure rotary jet grouting pile machinery 2 are in place, it is drilled down into from ground by carrying drill bit 3, while drilling, is entered
Row whitewashing, the rate of penetration of drilling rod 4 is 7cm ~ 9cm/min, and the rotary speed of drilling rod 4 keeps low-speed running (12-15r/min)；
Step 4, when rig creep into design stake bottom absolute altitude after, beginning carry drilling rod 4 upwards, while keep original construction parameter answered
Spray；
In step 5, multiple spray process, shadoof speed, the rotary speed of drilling rod 4 deep low gear need to be held in metalling, boulder bed,
And speed of application is then promoted to middling speed for cohesive soil, sandy soil layer（12~15 cm/min）Or at a high speed（15~20 cm/
min）, when drilling rod is promoted to ground absolute altitude again, complete to circulate for the first time；
Step 6, treat that cement mortar reaches the presetting period, second multiple spray circulation construction is carried out according to step 2~step 5.
, it is necessary to note when this construction method is used：1st, for high-pressure rotary-spray technique, if adding waterglass as morning
Strong agent, then need careful consideration, and waterglass setting time is too short（Determined according to volume, it is most fast up within 1min）, it is easy to
Cause construction machinery plugging so that a whole set of Grouting Pipe is scrapped；2nd, the parameter such as the cement mortar ratio of mud, admixture dosage is needed in experiment
Before, carry out experiment determination according to area, seasonal conditions.
Treatment method is applied in special geologic conditions such as rubble, cobbles, can avoid the cement mortar edge of high-pressure rotary-spray
The gap for rock or block stone flows away such that it is able to ensure that high-pressure rotary-spray technique is applied in special geologic conditions such as rubble, cobbles.
Meanwhile, machinery, equipment and material are that job site is existing used by treatment method, therefore with materials, easy to process
Advantage, compared to changing technique, take other engineering methods of additional complementary measure, treatment method has low excellent of construction cost
Gesture.
Claims (1)
1. a kind of rubble, pebble layer high-pressure rotary jet grouting pile do not return the processing method of slurry, it is characterized in that：Including
Step 1, after the completion of drilling, according to geology exploration report understand rubble, block stone step with difference and thickness；
Step 2, grouting, the ratio of mud of the slurry that mixed cement during grouting is 0.45:1~0.55:1, while adding early strength agent, early strength agent
Ratio control is 0.5%~2%；
After step 3, high-pressure rotary jet grouting pile machinery are in place, it is drilled down into from ground by carrying drill bit, while drilling, is carried out
Whitewashing, rod boring speed is 7cm ~ 9cm/min, and drilling rod rotary speed keeps low-speed running；
Step 4, when rig creep into design stake bottom absolute altitude after, beginning carry drilling rod upwards, while keep original construction parameter answered
Spray；
In step 5, multiple spray process, shadoof speed, drilling rod rotary speed deep low gear need to be held in metalling, boulder bed,
And speed of application is then promoted to middling speed or high speed for cohesive soil, sandy soil layer, treat that drilling rod is promoted to ground mark again
Gao Shi, completes to circulate for the first time；
Step 6, treat that cement mortar reaches the presetting period, second multiple spray circulation construction is carried out according to step 2~step 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710111752.9A CN106917401A (en) | 2017-02-28 | 2017-02-28 | Rubble, pebble layer high-pressure rotary jet grouting pile do not return the processing method of slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710111752.9A CN106917401A (en) | 2017-02-28 | 2017-02-28 | Rubble, pebble layer high-pressure rotary jet grouting pile do not return the processing method of slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106917401A true CN106917401A (en) | 2017-07-04 |
Family
ID=59454420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710111752.9A Pending CN106917401A (en) | 2017-02-28 | 2017-02-28 | Rubble, pebble layer high-pressure rotary jet grouting pile do not return the processing method of slurry |
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| CN (1) | CN106917401A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108285254A (en) * | 2018-04-18 | 2018-07-17 | 南京林业大学 | A kind of the stabilization processing unit and processing method of heavy metal pollution mud |
| CN115075226A (en) * | 2022-07-01 | 2022-09-20 | 中铨建设集团有限公司 | Construction method for assembled high-pressure jet grouting reducing telescopic reinforcement cage expansion anchor cable |
| CN115162340A (en) * | 2022-02-22 | 2022-10-11 | 中国水利水电建设工程咨询贵阳有限公司 | Karst area reservoir curtain grouting construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001081770A (en) * | 1999-09-16 | 2001-03-27 | Toyo Constr Co Ltd | Pile foundation work |
| CN1487150A (en) * | 2003-04-16 | 2004-04-07 | 广东省建筑科学研究院 | Combined grouting construction process of reinforcing foundation |
| KR20140062914A (en) * | 2012-11-15 | 2014-05-27 | 주식회사 삼우기초기술 | Construction method for extending bulb of the ground anchor by post grouting and bulb extending apparatus being used for the same |
| CN105887886A (en) * | 2016-06-16 | 2016-08-24 | 中国水利水电第十工程局有限公司 | Strong karst development stratum curtain grouting construction method |
-
2017
- 2017-02-28 CN CN201710111752.9A patent/CN106917401A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001081770A (en) * | 1999-09-16 | 2001-03-27 | Toyo Constr Co Ltd | Pile foundation work |
| CN1487150A (en) * | 2003-04-16 | 2004-04-07 | 广东省建筑科学研究院 | Combined grouting construction process of reinforcing foundation |
| KR20140062914A (en) * | 2012-11-15 | 2014-05-27 | 주식회사 삼우기초기술 | Construction method for extending bulb of the ground anchor by post grouting and bulb extending apparatus being used for the same |
| CN105887886A (en) * | 2016-06-16 | 2016-08-24 | 中国水利水电第十工程局有限公司 | Strong karst development stratum curtain grouting construction method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108285254A (en) * | 2018-04-18 | 2018-07-17 | 南京林业大学 | A kind of the stabilization processing unit and processing method of heavy metal pollution mud |
| CN115162340A (en) * | 2022-02-22 | 2022-10-11 | 中国水利水电建设工程咨询贵阳有限公司 | Karst area reservoir curtain grouting construction method |
| CN115075226A (en) * | 2022-07-01 | 2022-09-20 | 中铨建设集团有限公司 | Construction method for assembled high-pressure jet grouting reducing telescopic reinforcement cage expansion anchor cable |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170704 |