CN106759554B - A method of judging whether raked pile fractures in soil - Google Patents
A method of judging whether raked pile fractures in soil Download PDFInfo
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- CN106759554B CN106759554B CN201710157444.XA CN201710157444A CN106759554B CN 106759554 B CN106759554 B CN 106759554B CN 201710157444 A CN201710157444 A CN 201710157444A CN 106759554 B CN106759554 B CN 106759554B
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- raked pile
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
Abstract
The invention discloses a kind of methods for judging whether raked pile fractures in soil, the technical program is located at a point A point of the point B1 and exposure soil outer portion in raked pile soil by judgement, the corner dimension of two o'clock plumb line and inclined surface is crossed respectively, and the stake bottom of raked pile can be found near vertical bottom hole B point, it is common to determine raked pile in the case where bearing horizontal load, whether structure is complete, and depression of bearing force is avoided to lead to the generation of engineering accident.The method of the invention is easy to operate, and the time is short, and excavated volume is small, and use cost is low, can rapid and convenient accurately determine whether raked pile fractures in soil.
Description
Technical field
The invention belongs to technical field of building construction, in particular to a kind of methods for judging whether raked pile fractures in soil.
Background technique
In slope project, friction pile is mainly used for resisting horizontal loading, plays important function to stable side slope.Service phase
Between, due to top of the slope preloading etc., the horizontal loading that pile is received in soil is gradually increased, and pile body is gradually to slope outer incline.Work as level
When load increases to a certain critical value, pile body fractures, and bearing capacity suddenly declines to a great extent, and leads to engineering accident.
Whether raked pile fractures in soil, is difficult to differentiate from the appearance, but the bearing capacity difference of the two is larger, once determine wrong
Accidentally, easily lead to engineering accident.It is therefore, accurate that determine in soil whether raked pile fractures important to ensuring slope project safely and having
Effect.
Currently, for judging that for digging in-situ, raked pile is excavated for whether raked pile fractures in soil main method
Range estimation is judged afterwards, although this method can accurate judgement raked pile whether fracture, that there are excavated volumes is big for this method, lasts
It is long, it is at high cost the disadvantages of.
Based on this, studies and develop and design a kind of method for judging whether raked pile fractures in soil.
Summary of the invention
It is an object of the invention to: a kind of method judging whether raked pile fractures in soil is provided, is gone out using in raked pile
Reveal and a point A is set on the inclined surface of ground surface end, one point B1 then is set in the bottom of raked pile, determined A, B1 point vertical respectively
The corner dimension of line and inclined surface, and the stake bottom that raked pile whether can be found near the bottom hole B point in vertical hole determined, thus
Judge whether part fractures in raked pile insertion soil, solves in existing judgement soil whether raked pile fractures, using digging in-situ
Method, last the problems such as long, at high cost.
The present invention is achieved through the following technical solutions:
A method of judging whether raked pile fractures in soil, including following operating procedure:
Step 1): 1 point A point of setting, A point are located on the inclined surface of raked pile exposure ground surface end first, measure A point lead
The angle α of vertical line and inclined surface measures A point height H2, measures the length distance L1 of A point and the stake top of raked pile；
Step 2): calculating the length that raked pile is located in soil according to the long L of construction stake is L2, L2=L-L1, around A point
Point A1, A1 a point is arranged to be located in the inside region of the original vertical position of raked pile and inclined surface, and A1 point and A point it is horizontal away from
From for D, D=L2sin α；
Step 3): boring a vertical hole straight down centered on A1 point, and the bottom hole setting in vertical hole is a little B point, B point
Elevation is H3, H3=H2-L2cos α；
Step 4): the stake bottom of raked pile is found near the bottom hole B point in vertical hole, and is arranged a bit in the bottom of raked pile
B1 point measured the angle β of B1 point plumb line and inclined surface；
Step 5): if the stake bottom of raked pile can be found near B point, and α and β are equal in magnitude, then determine that raked pile does not have
It fractures, if can not find the stake bottom of raked pile near B point, raked pile fractures.
The technical program improves the existing method for judging whether raked pile fractures in soil, first in raked pile exposure
The position that the one end on ground is set as point A, A point selection specifically may be used on the inclined surface of raked pile exposure above ground portion
Tu Mianshang is met for the inclination in the tilting zone of raked pile exposure ground surface end and vertical plane, and A point not can determine that and reveal in raked pile
The end profile of above ground portion out.The angle for crossing A point plumb line and inclined surface is α, is used for and crosses B1 point plumb line and inclination
The angle β size in face is made comparisons, and wherein B1 point is to find near the bottom hole B point in vertical hole, and be located at the bottom of raked pile
Meet Tu Mianshang.
Wherein the determination method of bottom hole B point is, such as step 2), 3), 4) as described in first in the original vertical position of raked pile
It is a little A1 point with setting in the inside region of inclined surface, i.e. A1 point is located at raked pile present position (i.e. inclined surface) and rigid
In region when construction between raked pile position (can be vertical plane), A1 point is not any setting, and the position of A1 point meets
The horizontal length of A1 point and A point distance is D, it is known that A1 point uniquely determines, and then starts edge as origin using determining A1 point
Vertical direction bores vertical hole, and the depth of drilling determines that wherein the elevation H3 of B point is H3=according to the B point height of vertical hole bottom hole
H2-L2·cosα。
The stake bottom concrete operation method of searching raked pile is near determining bottom hole B point, is for inclination pile installation
Prefabricated pile, regular shape can directly find the stake bottom of raked pile, i.e., if raked pile does not fracture near bottom hole B point
The case where, the part exposure of the bottom of raked pile is in vertical hole；When being bored concrete pile for inclination pile installation, searching can be passed through
Armlet bottom determines the bottom position of raked pile indirectly.If the bottom of raked pile can be found, on the inclined surface of raked pile bottom
It determines a point B1 point, measured the angle β of B1 point plumb line and vertical direction, and judged the angle difference of α and β, if α and β size
It is equal, then it can determine that raked pile does not fracture；If the stake bottom of raked pile can not be found near the B point of bottom hole, it can determine that and incline
Taper pile fractures.
In the technical program, after determining A1 point, vertical hole is bored, realizes that fixed point is excavated, excavated volume is few, and the time is short, entirely sentences
Disconnected method rapid and convenient.
Further, vertical hole is bored in the step 3) at A1 point by the way of manually digging hole or mechanical hole building.It is perpendicular
To hole also drilling operation process can be completed by common equipment in the art.
Further, α the and β corner dimension is respectively less than 90 °, then can determine that A point and B1 point are located at the inclination of raked pile
The same side in face.
Further, the B point is located at the bottom hole center in vertical hole, and the B point is overlapped with B1 point, then can determine that raked pile
It does not fracture, B1 point is overlapped with B point to be occurred in the case where raked pile does not fracture.Do not occur the feelings to fracture in raked pile
Under condition, go down from A1 point excavation, excavate predetermined depth H3, an intersection point is arranged at the bottom of bottom hole and raked pile, which is bottom hole
Center B point, and the bottom of raked pile select a point B1 point, measured angle β, the B point of B1 point plumb line and inclined surface
Positioned at the bottom of raked pile, preferably B1 point is overlapped with B point, is reduced and is excavated workload, shorten judge whether raked pile fracture when
Between.
Compared with prior art, the present invention having the following advantages and benefits:
(1) the technical program by judgement be located in raked pile soil a little with exposure soil it is outer a little where inclined surface respectively with
The corner dimension of vertical direction, and the stake bottom of raked pile can be found near the bottom hole in vertical hole, it is common to determine that raked pile exists
In the case where bearing horizontal load, whether structure is complete, and depression of bearing force is avoided to lead to the generation of engineering accident.
(2) the method for the invention is easy to operate, and the time is short, and excavated volume is small, and use cost is low, can rapid and convenient accurately sentence
Whether raked pile fractures in fixed soil.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of determination method of the present invention；
Wherein: 1-raked pile, 2-vertical holes, 3-inclined surface.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
In Fig. 1, A indicates that raked pile 1 bassets the point held on inclined surface 3, and B indicates one of vertical 2 bottom of hole
Point, B1 indicate a point on the bottom angled face of raked pile, and α was the angle of A point plumb line and inclined surface, and β was B1 point
The angle of plumb line and inclined surface, L indicate that the entire stake of raked pile 1 is long, including part in insertion soil and part in exposure soil
Length, L2 indicate that raked pile 1 is located at the length of part in soil, and L1 is partial-length in 1 exposure of raked pile soil, and D is A1 point and A point
Horizontal length distance, H3 be B point elevation, H2 be A point height, stake bottom be raked pile be located at soil in part, stake top be incline
The end of taper pile exposure ground surface end, stake bottom are the end that raked pile is located at section bottom in soil.
Embodiment 1:
As shown in Figure 1, a kind of method for judging whether raked pile fractures in soil, including following operating procedure,
Step 1): 1 point A point of setting, A point are located on the inclined surface 3 of 1 exposure ground surface end of raked pile first, measure A point
The angle α of plumb line and inclined surface 3 measures A point height H2, the length distance L1 of measurement A point and the stake top of raked pile 1；
Step 2): calculating the length that raked pile 1 is located in soil according to the long L of construction stake is L2, L2=L-L1, in the week of A point
It encloses 1 point A1, A1 point of setting to be located in the inside region of the original vertical position of raked pile 1 and inclined surface 3, and the water of A1 point and A point
Flat distance is D, D=L2sin α；
Step 3): boring a vertical hole 2 straight down centered on A1 point, and the bottom hole setting in vertical hole 2 is a little B point, B
Point height is H3, H3=H2-L2cos α；
Step 4): the stake bottom of raked pile 1 is found near the bottom hole B point in vertical hole 2, and is arranged in the bottom of raked pile 1
Point B1 point, measured the angle β of B1 point plumb line Yu inclined surface 3；
Step 5): if the stake bottom of raked pile 1 can be found near B point, and α and β are equal in magnitude, then determine raked pile (1)
It does not fracture, if can not find the stake bottom of raked pile 1 near B point, raked pile fractures.
Embodiment 2:
The present embodiment the difference from embodiment 1 is that: in the step 3) in a manner of manually digging hole or mechanical borehole
Vertical hole 2 is bored at A1 point, hidden hole drilling can be used in the mode for specifically boring vertical hole, can also carry out for other equipment commonly used in the art
Bore mode is realized.
Embodiment 3:
The difference of the present embodiment and above-described embodiment is: α and β corner dimension is respectively less than 90 ° in the step 5), then really
The bottom hole B point of the A point, vertical hole that are scheduled on the setting of raked pile exposure part nearby searches out and the part in raked pile insertion soil
The B1 point being arranged on inclined surface is respectively positioned on the same side on the inclined surface of raked pile, to improve whether raked pile in judgement soil is rolled over
Disconnected accuracy.
Embodiment 4:
The present embodiment is from the difference of above-described embodiment: for stake in different construction type soil, having on degree of deformation
Different such as bores the bored concrete pile of weak soil or sand soil area, and perfusion rear slurry can spread to hole week, in this case, although α and
β size has fine difference, but the stake bottom of raked pile can be found near B point, still can determine whether that raked pile does not fracture.
Embodiment 5:
The difference of the present embodiment and above-described embodiment is: the B point is located at the bottom hole center in vertical hole, preferably B point with
B1 point is overlapped, and the present embodiment is made preferably to B point, B1 point setting relationship, the A1 point of the determination according to the present embodiment, and with A1
Point is origin, excavates vertical hole, the depth in vertical hole is determined by the bottom hole B point height that vertical hole is arranged in, and is not had in raked pile
In the case where fractureing, vertical hole is excavated to after predetermined depth, it can directly be seen that the bottom part exposure of raked pile is in vertical hole
Interior, the bottom hole center B point in vertical hole is preferably overlapped with the B1 point being arranged on the bottom of raked pile, can greatly be reduced attached in B point
The nearly workload for finding raked pile stake bottom, and B point and B1 point are overlapped, B1 point is located on the inclined surface of raked pile bottom, measurement β
The size of angle can quickly judge the relationship with α corner dimension, and whether the raked pile for being accurately judged to be located in soil fractures.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (5)
1. a kind of method for judging whether raked pile fractures in soil, it is characterised in that: including following operating procedure,
Step 1): 1 point A point of setting, A point are located on the inclined surface (3) of raked pile (1) exposure ground surface end first, measure A point
The angle α of plumb line and inclined surface (3) measures A point height H2, measures the stake top length distance L1 of A point and raked pile (1)；
Step 2): calculating the length that raked pile (1) is located in soil according to the long L of construction stake is L2, L2=L-L1, around A point
Point A1, A1 a point is arranged to be located in the inside region of raked pile (1) original vertical position and inclined surface (3), and A1 point and A point
Horizontal distance is D, D=L2sin α；
Step 3): boring a vertical hole (2) straight down centered on A1 point, and the bottom hole setting in vertical hole (2) is a little B point, B
Point height is H3, H3=H2-L2cos α；
Step 4): the stake bottom of raked pile (1) is found near the bottom hole B point of vertical hole (2), and is set in the bottom of raked pile (1)
A point B1 point is set, the angle β of B1 point plumb line Yu inclined surface (3) was measured；
Step 5): if the stake bottom of raked pile (1) can be found near B point, and α and β are equal in magnitude, then determine that raked pile (1) does not have
It fractures, if can not find the stake bottom of raked pile (1) near B point, raked pile fractures.
2. a kind of method for judging whether raked pile fractures in soil according to claim 1, it is characterised in that: the step
3) vertical hole (2) is bored at A1 point in a manner of manually digging hole or mechanical borehole in.
3. a kind of method for judging whether raked pile fractures in soil according to claim 1, it is characterised in that: the step
5) α and β corner dimension is respectively less than 90 ° in.
4. a kind of method for judging whether raked pile fractures in soil according to claim 1, it is characterised in that: the B point
Positioned at the bottom hole center of vertical hole (2).
5. a kind of method for judging whether raked pile fractures in soil according to claim 4, it is characterised in that: the B point
It is overlapped with B1 point, then can determine that raked pile does not fracture.
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| CN201710157444.XA CN106759554B (en) | 2017-03-16 | 2017-03-16 | A method of judging whether raked pile fractures in soil |
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| CN201710157444.XA CN106759554B (en) | 2017-03-16 | 2017-03-16 | A method of judging whether raked pile fractures in soil |
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| CN106759554B true CN106759554B (en) | 2018-12-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9109877B2 (en) * | 2010-05-21 | 2015-08-18 | Jonathan S. Thierman | Method and apparatus for dimensional measurement |
| CN103344169B (en) * | 2013-08-02 | 2015-09-09 | 杨浩 | The method for monitoring deformation of convergence meter by equivalent method of expansion |
| CN104060605B (en) * | 2014-06-26 | 2016-03-09 | 国家电网公司 | Fold-line-shaped pile foundation structure and basic role power computational methods thereof and construction method |
| CN105737799B (en) * | 2016-02-02 | 2018-03-23 | 湖南联智桥隧技术有限公司 | A kind of detection method of pier column perpendicularity |
| CN105887947B (en) * | 2016-06-12 | 2018-08-28 | 无锡市大筑岩土技术有限公司 | A kind of method for correcting error and its deviation correcting device of pile foundation inclination |
| CN105971037B (en) * | 2016-07-05 | 2018-04-20 | 四川省建筑科学研究院 | A kind of existing engineering pile stake bottom depth determination method |
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Address after: A section of Chengdu city Jinniu District 610000 North Road No. 55 in Sichuan Province Patentee after: Sichuan Academy of Architectural Sciences Co., Ltd. Address before: A section of Chengdu city Jinniu District 610000 North Road No. 55 in Sichuan Province Patentee before: Research Inst. of Architectonics, Sichuan Prov. |
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