CN108071110A - Rotary drilling rig Pile method under complex geological condition - Google Patents

Rotary drilling rig Pile method under complex geological condition Download PDF

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Publication number
CN108071110A
CN108071110A CN201610994891.6A CN201610994891A CN108071110A CN 108071110 A CN108071110 A CN 108071110A CN 201610994891 A CN201610994891 A CN 201610994891A CN 108071110 A CN108071110 A CN 108071110A
Authority
CN
China
Prior art keywords
pile
drilling rig
rotary drilling
geological condition
complex geological
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610994891.6A
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Chinese (zh)
Inventor
韩树松
朱长根
高志浩
裴治军
梅攀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Baoye Group Corp Ltd
Original Assignee
Shanghai Baoye Group Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Baoye Group Corp Ltd filed Critical Shanghai Baoye Group Corp Ltd
Priority to CN201610994891.6A priority Critical patent/CN108071110A/en
Publication of CN108071110A publication Critical patent/CN108071110A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/38Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
    • E02D5/385Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes

Abstract

The present invention relates to the dedicated sheet pile wall of foundation engineering, stake or other structures member arts are specially a kind of rotary drilling rig Pile method under complex geological condition.A kind of rotary drilling rig Pile method under complex geological condition, it is characterized in that:Implement successively as follows:A. smooth location;B. measure of pile position positioning review;C. rotary drilling rig is in place and centering, embedded casing are crept into;D. drill to middle weathered rock formation absolute altitude face;E. drilling proceeds to design requirement socket length;F. a borehole cleaning;G. steel reinforcement cage and conduit are placed;H. secondary pile hole cleaning;I. casting concrete;J. casing is finally extracted.The present invention is easy to use, applied widely.

Description

Rotary drilling rig Pile method under complex geological condition
Technical field
The present invention relates to the dedicated sheet pile wall of foundation engineering, stake or other structures member arts, specially one kind are intricately Rotary drilling rig Pile method under the conditions of matter.
Background technology
In recent years, rotary drilling rig because its is efficient, speed of application is fast, it is mobile flexibly, environmental protection and to adapt to stratum property wider etc. excellent Point and be widely used in the pile foundation engineerings such as highway bridge, railroad bridge, municipal administration, water conservancy, Super High and large industrial buildings it In.Rotary drilling rig applies in general to clay, silt, sand, muck soil, artificial backfill and containing part cobble, rubble etc. Finer and close ovum gravel bed, boulder layer and hard formation within soft soil layer and 60m.But as extra-large bridge and industry are built That builds continues to bring out, and Big-Diameter Rock-Embedded Pile base is more and more, and when running into hard rock base stratum, the application of rotary drilling rig is just subject to Certain limitation.
The content of the invention
The defects of in order to overcome the prior art, a kind of pile-driving method easy to use, applied widely is provided, the present invention is public A kind of rotary drilling rig Pile method under complex geological condition is opened.
The present invention reaches goal of the invention by following technical solution:
A kind of rotary drilling rig Pile method under complex geological condition, it is characterized in that:Implement successively as follows:
A. smooth location:By the compacting of rotary drilling rig position and scene leveling, in easy flights in 3 ° under normal circumstances, earth bearing strength is not Less than 100kPa, with suitable for construction machinery rotary drilling rig, crane, concrete tank discrepancy construction site.Construction site water, electricity, Road threeway, reaches construction requirement;
B. measure of pile position positioning review:For the place of 1~3 pile, stake position tolerance is controlled within 10cm, for more In the place of a clump of piles for 3 piles, stake position tolerance is controlled within 15cm, and specific standards refer to《Building foundation engineering Construction quality accident specification》GB 50202-2002 tables 5.1.4;
C. rotary drilling rig is in place and centering, subsequent rotary drilling rig bury casing drilling;
D. rotary drilling rig drills to middle weathered rock formation absolute altitude face(Need to through management, design survey live confirmation);
E. rotary drilling rig, which continues to drill, proceeds to design requirement socket length(Management surveys common confirmation to design);
F. a borehole cleaning;
G. steel reinforcement cage and conduit are placed;
H. secondary pile hole cleaning;
I. casting concrete;
J. casing is finally extracted.
Rotary drilling rig Pile method under the complex geological condition, it is characterized in that:Step c to step e is to bore The axis of Kong Shikong and ground keep vertical, and the axis in the hole bored and the angle of plumb line are not more than 2 °.
Rotary drilling rig Pile method under the complex geological condition, it is characterized in that:During step e, drilling depth For 1~4 times of embedded rock pile outer diameter.
The present invention is applicable in the Pile Grouting that supporting course is the weathered rock formation in other such as limestone, sandstone, and socket length can Up to 1D~4D(D is stake footpath), in constructing applied to piles set into rock, construction is simple, speed of application is fast, and pile quality is high, avoids Substantial amounts of useless slurry is generated using impact holing and the substantial amounts of rubble of down-hole hammer construction generation exists everywhere the generation of phenomenon.
The present invention has the advantages that:
1. the advantages that rotary drilling rig speed of application is fast, pile quality is high, energy conservation and environmental protection can be given full play to, and rotary drilling rig is constructed Generation rubble in stake bottom is less, and side wall mudcake thickness is relatively thin, and the more previous traditional construction technique of bearing capacity of pile foundation is more guaranteed, enters rock It is efficient.
2. it is theoretical based on catalase, different embedding core bits and reasonable cloth tooth are selected according to lithological characteristic, are aided with rationally Drilling process generally all can be taken off complete rock, reaches rotary drilling rig and efficiently enters rock purpose, and construction speed is fast, while can be big It is big to save construction cost.
It is 3. good into hole perpendicularity.In soft or hard interface or lithology anisotropy, by reasonably tunnel engineering method and Cleaning bottom of hole technique, can effectively ensure that into hole perpendicularity, and rotary drilling rig carries verticality monitoring system, in drilling process can at any time Control adjustment.
Description of the drawings
Nothing.
Specific embodiment
It is further illustrated the present invention below by way of specific embodiment.
Embodiment 1
Rotary drilling rig Pile method, implements successively as follows under a kind of complex geological condition:
A. smooth location:By the compacting of rotary drilling rig position and scene leveling, in easy flights in 3 ° under normal circumstances, earth bearing strength is not Less than 100kPa, with suitable for construction machinery rotary drilling rig, crane, concrete tank discrepancy construction site.Construction site water, electricity, Road threeway, reaches construction requirement;
B. measure of pile position positioning review:For the place of 1~3 pile, stake position tolerance is controlled within 10cm, for more In the place of a clump of piles for 3 piles, stake position tolerance is controlled within 15cm, and specific standards refer to《Building foundation engineering Construction quality accident specification》GB 50202-2002 tables 5.1.4;
C. rotary drilling rig is in place and centering, and subsequent rotary drilling rig buries casing drilling, and the axis in hole and ground keep hanging down during drilling Directly, the axis in the hole bored and the angle of plumb line are not more than 2 °;
D. rotary drilling rig drills to middle weathered rock formation absolute altitude face(Need to through management, design survey live confirmation), the axis in hole during drilling Line and ground keep vertical, and the axis in the hole bored and the angle of plumb line are not more than 2 °;
E. rotary drilling rig, which continues to drill, proceeds to design requirement socket length(Management surveys common confirmation to design), hole during drilling Axis and ground keep vertical, and no more than 2 °, drilling depth is embedded rock pile outer diameter for the axis in the hole bored and the angle of plumb line 1~4 times;
F. a borehole cleaning;
G. steel reinforcement cage and conduit are placed;
H. secondary pile hole cleaning;
I. casting concrete;
J. casing is finally extracted.

Claims (3)

1. a kind of rotary drilling rig Pile method under complex geological condition, it is characterized in that:Implement successively as follows:
A. smooth location:By the compacting of rotary drilling rig position and scene leveling, in easy flights in 3 ° under normal circumstances, earth bearing strength is not Less than 100kPa;
B. measure of pile position positioning review:For the place of 1~3 pile, stake position tolerance is controlled within 10cm, for more In the place of a clump of piles for 3 piles, stake position tolerance is controlled within 15cm;
C. rotary drilling rig is in place and centering, subsequent rotary drilling rig bury casing drilling;
D. rotary drilling rig drills to middle weathered rock formation absolute altitude face;
E. rotary drilling rig, which continues to drill, proceeds to design requirement socket length;
F. a borehole cleaning;
G. steel reinforcement cage and conduit are placed;
H. secondary pile hole cleaning;
I. casting concrete;
J. casing is finally extracted.
2. rotary drilling rig Pile method under complex geological condition as described in claim 1, it is characterized in that:Step c is extremely Step e is, the axis in hole and ground keep vertical during drilling, and the axis in the hole bored and the angle of plumb line are not more than 2 °.
3. rotary drilling rig Pile method under complex geological condition as claimed in claim 1 or 2, it is characterized in that:Step e When, drilling depth is 1~4 times of embedded rock pile outer diameter.
CN201610994891.6A 2016-11-11 2016-11-11 Rotary drilling rig Pile method under complex geological condition Pending CN108071110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610994891.6A CN108071110A (en) 2016-11-11 2016-11-11 Rotary drilling rig Pile method under complex geological condition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610994891.6A CN108071110A (en) 2016-11-11 2016-11-11 Rotary drilling rig Pile method under complex geological condition

Publications (1)

Publication Number Publication Date
CN108071110A true CN108071110A (en) 2018-05-25

Family

ID=62153689

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610994891.6A Pending CN108071110A (en) 2016-11-11 2016-11-11 Rotary drilling rig Pile method under complex geological condition

Country Status (1)

Country Link
CN (1) CN108071110A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109137957A (en) * 2018-09-19 2019-01-04 上海市机械施工集团有限公司 A kind of pile base construction method
CN109723373A (en) * 2018-12-26 2019-05-07 中铁二十五局集团第五工程有限公司 A kind of light weathered granite stratum rotary digging drilling hole bored concrete pile construction method
CN111058767A (en) * 2019-12-06 2020-04-24 广东省基础工程集团有限公司 Construction method of rock-socketed cast-in-situ bored pile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109137957A (en) * 2018-09-19 2019-01-04 上海市机械施工集团有限公司 A kind of pile base construction method
CN109723373A (en) * 2018-12-26 2019-05-07 中铁二十五局集团第五工程有限公司 A kind of light weathered granite stratum rotary digging drilling hole bored concrete pile construction method
CN111058767A (en) * 2019-12-06 2020-04-24 广东省基础工程集团有限公司 Construction method of rock-socketed cast-in-situ bored pile

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