CN107268608A - Building waste earth-boring stake forming hole method - Google Patents
Building waste earth-boring stake forming hole method Download PDFInfo
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- CN107268608A CN107268608A CN201710420214.8A CN201710420214A CN107268608A CN 107268608 A CN107268608 A CN 107268608A CN 201710420214 A CN201710420214 A CN 201710420214A CN 107268608 A CN107268608 A CN 107268608A
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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
- E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
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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
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- Piles And Underground Anchors (AREA)
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Abstract
The invention discloses a kind of building waste earth-boring stake forming hole method, the problem of solving the pore-forming difficulty of constructing concrete bored concrete pile on soft stratum or building waste backfill stratum.Drilled dry is to first paragraph miscellaneous fill layer on stake holes position（1）Bottom, formed first paragraph rotary digging drilling hole（2）, cement mortar is configured, and the cement mortar configured is poured into first paragraph rotary digging drilling hole（2）And first paragraph is miscellaneous fills out subsidence area（3）It is interior, form first paragraph cement injection mortar post（4）；In first paragraph cement injection mortar post（4）In concrete initial set after before final set in this period, in first paragraph cement injection mortar post（4）End face center position carry out being bored into first paragraph miscellaneous fill layer（1）Bottom, formed first paragraph pile foundation hole（5）With first paragraph cement mortar retaining wall（6）, so circulation, until the bottom of N sections of miscellaneous fill layers, forms the cylindric cement mortar retaining wall of inverted trapezoidal, it is ensured that cast-in-place concrete pile is high-quality to be performed.
Description
Technical field
It is more particularly to a kind of to backfill stratum in soft stratum or building waste the present invention relates to a kind of pouring pile hole method
The forming hole method of upper constructing concrete bored concrete pile.
Background technology
Cast-in-situ bored pile is that engineering site forms stake holes by the means of machine drilling in foundation soil, and is placed in it
Steel reinforcement cage, concrete perfusion and the stake made.Pile bearing is in hard（Basement rock, closely knit gravel layer）Or it is harder（Hard plastic
Cohesive soil, in close sand etc.）Supporting course, with very high vertical bearing capacity of single pile or Bearing Capacity of Pile Groups.Need to pass through before pile
Churning driven is drilled, while injecting the good mud of configured in advance in drilling process, is formed mud off, is completed pore-forming.
In work progress, bored piles position is in miscellaneous fill layer thicker sometimes, and hole position geology has substantial amounts of life, building waste,
The soil is porous for miscellaneous made ground layer, and water penetration is extremely strong.Using traditional churning driven holing with slurry wall protection technique, collapse hole phenomenon still occurs,
The problem of mud moment leaks out to ravel area or hole area in hole can not be solved, unavoidably occurs collapse hole, makes pore-forming complete
Into.According to full-sleeve bore process, when there is casting concrete steel reinforcement cage easily arch up,（Construction）Plant equipment is more, cost is high
Defect, when back fill course is blocked up, due to can not accurately grasp the concrete coagulation opportunity being poured into hole, it occur frequently that heavy
The steel sleeve entered can not be extracted in time, the problem of being trapped in hole.
The content of the invention
The invention provides a kind of building waste earth-boring stake forming hole method, solve soft stratum or building waste is returned
The technical problem of the pore-forming difficulty of the upper constructing concrete bored concrete pile of made ground layer.
The present invention is to solve above technical problem by the following technical programs：
A kind of building waste earth-boring stake forming hole method, comprises the following steps：
The first step, the thickness according to miscellaneous fill layer, N sections are divided into along depth of stratum direction by miscellaneous fill layer, and will be with undisturbed soil
The miscellaneous fill layer latter end of layer connection is defined as N sections of miscellaneous fill layers；
The different churning driven drill bit of drilling machine of second step, the N number of diameter of selection, and make, the diameter and preformation of n-th drilling bit of rotary-digging drilling rig
The bored concrete pile design aperture in hole is identical, and the diameter of the N-1 drilling bit of rotary-digging drilling rig is more than the diameter of n-th drilling bit of rotary-digging drilling rig,
The diameter of the N-2 drilling bit of rotary-digging drilling rig is more than the diameter of the N-1 drilling bit of rotary-digging drilling rig, by that analogy, determines remaining rotation
The diameter of drill bit of drilling machine is dug, makes the diameter of first drilling bit of rotary-digging drilling rig maximum, the diameter of n-th drilling bit of rotary-digging drilling rig is minimum；
3rd step, first drilling bit of rotary-digging drilling rig for choosing second step are arranged on rotary drilling rig, and drilled dry is arrived on stake holes position
The bottom of first paragraph miscellaneous fill layer, forms first paragraph rotary digging drilling hole, and first drilling bit of rotary-digging drilling rig is extracted and arrives ground, first
It is formed with that first paragraph is miscellaneous to fill out subsidence area in section rotary digging drilling hole；
4th step, configuration cement mortar, and the cement mortar configured is poured into first paragraph rotary digging drilling hole and first paragraph is miscellaneous fills out
In subsidence area, first paragraph cement injection mortar post is formed；
5th step, first drilling bit of rotary-digging drilling rig is disassembled, second drilling bit of rotary-digging drilling rig that second step is chosen is installed to rotation
Dig on rig, after the concrete initial set in first paragraph cement injection mortar post before final set in this period, in first paragraph perfusion
The end face center position of cement mortar post be bored into the bottom of first paragraph miscellaneous fill layer, forms first paragraph pile foundation hole and first
Section cement mortar retaining wall, continues downward drilled dry to the bottom of second segment miscellaneous fill layer, second segment rotary digging drilling hole is formed, by second
Drilling bit of rotary-digging drilling rig, which is extracted, arrives ground, is formed with that second segment is miscellaneous to fill out subsidence area in second segment rotary digging drilling hole；
6th step, configure cement mortar again, and be circulated into second segment rotary digging drilling hole and second segment is miscellaneous fills out in subsidence area, fill
The liquid level of the cement mortar of note forms second segment cement injection mortar post higher than 500 millimeters of the bottom of first paragraph miscellaneous fill layer；
7th step, second drilling bit of rotary-digging drilling rig is disassembled, the 3rd drilling bit of rotary-digging drilling rig that second step is chosen is arranged on rotation
Dig on rig, the 3rd drilling bit of rotary-digging drilling rig is transferred to the top surface of second segment cement injection mortar post along first paragraph pile foundation hole
On, after the concrete initial set of second segment cement injection mortar post before final set in this period, in second segment cement injection mortar
The end face center position of post be bored into the bottom of second segment miscellaneous fill layer, forms second segment pile foundation hole and second segment cement bonded sand
Retaining wall is starched, continues downward drilled dry to the bottom of the 3rd section of miscellaneous fill layer, the 3rd section of rotary digging drilling hole is formed, by the 3rd rotary drilling rig
Drill bit, which is extracted, arrives ground, and the 3rd section is formed with the 3rd section of rotary digging drilling hole and miscellaneous fills out subsidence area；
8th step, configure cement mortar again, and be circulated into the 3rd section of rotary digging drilling hole and the 3rd section it is miscellaneous fill out in subsidence area, fill
500 millimeters of the bottom of higher than the 3rd section miscellaneous fill layer of the liquid level of the cement mortar of note, forms the 3rd section of cement injection mortar post；
9th step, the 3rd drilling bit of rotary-digging drilling rig is disassembled, the 4th drilling bit of rotary-digging drilling rig that second step is chosen is arranged on rotation
Dig on rig, the 4th drilling bit of rotary-digging drilling rig is transferred to the top surface of the 3rd section of cement injection mortar post along second segment pile foundation hole
On, after the concrete initial set of the 3rd section of cement injection mortar post before final set in this period, in the 3rd section of cement injection mortar
The end face center position of post be bored into the bottom of the 3rd section of miscellaneous fill layer, forms the 3rd section of pile foundation hole and the 3rd section of cement bonded sand
Retaining wall is starched, continues downward drilled dry, so circulation, until the bottom of N sections of miscellaneous fill layers, miscellaneous in N sections of rotary digging drilling holes and N sections
Fill out in subsidence area, N sections of priming petocks are formed on 500 millimeters of the bottom of higher than the N sections miscellaneous fill layers of liquid level of the cement mortar of perfusion
Cement mortar post, after the concrete initial set of N sections of cement injection mortar posts before final set in this period, in N sections of cement injections
The end face center position of mortar post carries out being bored into the following 1 meter of depths of original soil layer；Complete the pore-forming of miscellaneous fill layer cast-in-situ bored pile.
A kind of building waste earth-boring stake forming hole method, comprises the following steps：
The first step, the thickness according to miscellaneous fill layer, N sections are divided into along depth of stratum direction by miscellaneous fill layer, and will be with undisturbed soil
The miscellaneous fill layer latter end of layer connection is defined as N sections of miscellaneous fill layers；
Second step, selection bore are more than the churning driven drill bit of drilling machine that bored concrete pile designs aperture；
3rd step, the drilling bit of rotary-digging drilling rig for choosing second step are arranged on rotary drilling rig, and drilled dry is to first paragraph on stake holes position
The bottom of miscellaneous fill layer, forms first paragraph rotary digging drilling hole, and first drilling bit of rotary-digging drilling rig is extracted and arrives ground, in first paragraph rotary digging
It is formed with that first paragraph is miscellaneous to fill out subsidence area in drilling, in boring procedure, because soil property is soft, causes first paragraph is miscellaneous to fill out subsidence area base
Originally cover in the hole madial wall of first paragraph rotary digging drilling hole, cleaning first paragraph rotary digging drilling hole and collapse miscellaneous fill；
4th step, configuration cement mortar, and the cement mortar configured is poured into first paragraph rotary digging drilling hole and first paragraph is miscellaneous fills out
In subsidence area, first paragraph cement injection mortar post is formed, the minimum diameter of the first paragraph cement injection mortar post formed is more than
The diameter of churning driven drill bit of drilling machine；
After 5th step, the concrete initial set in first paragraph cement injection mortar post before final set in this period, filled in first paragraph
The drilling bit of rotary-digging drilling rig that the end face center position of water filling cement mortar post is chosen with second step carries out being bored into first paragraph miscellaneous fill layer
Bottom, form first paragraph pile foundation hole and first paragraph cement mortar retaining wall, continue to spud in downwards to the bottom of second segment miscellaneous fill layer
Portion, forms second segment rotary digging drilling hole, and drilling bit of rotary-digging drilling rig is extracted and arrives ground, second segment is formed with second segment rotary digging drilling hole
It is miscellaneous to fill out subsidence area, because soil property is soft in boring procedure, cause the miscellaneous subsidence area of filling out of second segment to cover second segment churning driven substantially
Miscellaneous fill is collapsed in the hole madial wall in hole, cleaning second segment rotary digging drilling hole；
6th step, configure cement mortar again, and be circulated into second segment rotary digging drilling hole and second segment is miscellaneous fills out in subsidence area, fill
The liquid level of the cement mortar of note forms second segment cement injection mortar post, institute higher than 500 millimeters of the bottom of first paragraph miscellaneous fill layer
The minimum diameter of the second segment cement injection mortar post of formation is more than the diameter of churning driven drill bit of drilling machine；
7th step, the drilling bit of rotary-digging drilling rig for choosing second step transfer to second segment cement injection mortar post along first paragraph pile foundation hole
Top surface on, after the concrete initial set of second segment cement injection mortar post before final set in this period, in second segment priming petock
The end face center position of cement mortar post be bored into the bottom of second segment miscellaneous fill layer, forms second segment pile foundation hole and second segment
Cement mortar retaining wall, continues downward drilled dry to the bottom of the 3rd section of miscellaneous fill layer, the 3rd section of rotary digging drilling hole is formed, by rotary drilling rig
Drill bit extract arrive ground, be formed with the 3rd section of rotary digging drilling hole the 3rd section it is miscellaneous fill out subsidence area, due to soil property in boring procedure
It is soft, cause the 3rd section it is miscellaneous fill out the hole madial wall that subsidence area covers the 3rd section of rotary digging drilling hole substantially, clear up the 3rd section of rotary digging drilling hole
Interior collapses miscellaneous fill；
8th step, configure cement mortar again, and be circulated into the 3rd section of rotary digging drilling hole and the 3rd section it is miscellaneous fill out in subsidence area, fill
The liquid level of the cement mortar of note forms the 3rd section of cement injection mortar post higher than 500 millimeters of the bottom of second segment miscellaneous fill layer；
9th step, second step is chosen into drilling bit of rotary-digging drilling rig transfer to the 3rd section of cement injection mortar post along second segment pile foundation hole
On top surface, after the concrete initial set of the 3rd section of cement injection mortar post before final set in this period, in the 3rd section of cement injection
The end face center position of mortar post be bored into the bottom of the 3rd section of miscellaneous fill layer, forms the 3rd section of pile foundation hole and the 3rd section of water
Cement mortar retaining wall, continues downward drilled dry, so circulation, until the bottom of N sections of miscellaneous fill layers, in N sections of rotary digging drilling holes and N
Section is miscellaneous to fill out in subsidence area, 500 millimeters of the bottom of higher than the N sections miscellaneous fill layers of liquid level of the cement mortar of perfusion, forms N sections of fillings
Water filling cement mortar post, after the concrete initial set of N sections of cement injection mortar posts before final set in this period, in N sections of perfusions
The end face center position of cement mortar post carries out being bored into the following 1 meter of depths of original soil layer；Complete miscellaneous fill layer cast-in-situ bored pile into
Hole.
The present invention has explored a kind of hole forming technique for the cast-in-situ bored pile that soil layer is easily collapsed in miscellaneous fill layer etc., solves
Givey problem in boring procedure, forms the cylindric cement mortar retaining wall of inverted trapezoidal, it is ensured that cast-in-place concrete pile is high
Quality is performed；Overcoming Conventional mud retaining wall has the defect of certain degree of hardness requirement to drill hole geologic, with a full set of bore mode ratio
Compared with having the advantages that cost is low, perform easily and short time limit.
Brief description of the drawings
Fig. 1 is the structural representation of pore-forming after drilled dry first paragraph miscellaneous fill layer 1 of the invention；
Fig. 2 is the structural representation of the first paragraph cement injection mortar post 4 of the present invention；
Fig. 3 is the structural representation of the first paragraph pile foundation hole 5 of the present invention；
Fig. 4 is the structural representation of the second segment rotary digging drilling hole 8 of the present invention；
Fig. 5 is the structural representation of the second segment cement injection mortar post 10 of the present invention；
Fig. 6 is the structural representation of the second segment pile foundation hole 11 of the present invention；
Fig. 7 is the structural representation of the 3rd section of rotary digging drilling hole 14 of the present invention；
Fig. 8 is the structural representation of the 3rd section of cement injection mortar post 16 of the present invention；
Fig. 9 is the 3rd section of pile foundation hole 17 of the present invention and the structural representation of original soil layer 19.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
A kind of building waste earth-boring stake forming hole method, including step once：
The first step, the thickness according to miscellaneous fill layer, N sections are divided into along depth of stratum direction by miscellaneous fill layer, and will be with undisturbed soil
The miscellaneous fill layer latter end of the connection of layer 19 is defined as N sections of miscellaneous fill layers；
The different churning driven drill bit of drilling machine of second step, the N number of diameter of selection, and make, the diameter and preformation of n-th drilling bit of rotary-digging drilling rig
The bored concrete pile design aperture in hole is identical, and the diameter of the N-1 drilling bit of rotary-digging drilling rig is more than the diameter of n-th drilling bit of rotary-digging drilling rig,
The diameter of the N-2 drilling bit of rotary-digging drilling rig is more than the diameter of the N-1 drilling bit of rotary-digging drilling rig, by that analogy, determines remaining rotation
The diameter of drill bit of drilling machine is dug, makes the diameter of first drilling bit of rotary-digging drilling rig maximum, the diameter of n-th drilling bit of rotary-digging drilling rig is minimum；
3rd step, first drilling bit of rotary-digging drilling rig for choosing second step are arranged on rotary drilling rig, and drilled dry is arrived on stake holes position
The bottom of first paragraph miscellaneous fill layer 1, forms first paragraph rotary digging drilling hole 2, and first drilling bit of rotary-digging drilling rig is extracted and arrives ground, the
It is formed with that first paragraph is miscellaneous to fill out subsidence area 3 in one section of rotary digging drilling hole 2；
4th step, configuration cement mortar, and the cement mortar configured is poured into first paragraph rotary digging drilling hole 2 and first paragraph is miscellaneous fills out
In subsidence area 3, first paragraph cement injection mortar post 4 is formed；
5th step, first drilling bit of rotary-digging drilling rig is disassembled, second drilling bit of rotary-digging drilling rig that second step is chosen is installed to rotation
Dig on rig, after the concrete initial set in first paragraph cement injection mortar post 4 before final set in this period, in first paragraph perfusion
The end face center position of cement mortar post 4 be bored into the bottom of first paragraph miscellaneous fill layer 1, forms the He of first paragraph pile foundation hole 5
First paragraph cement mortar retaining wall 6, continues downward drilled dry to the bottom of second segment miscellaneous fill layer 7, forms second segment rotary digging drilling hole 8,
Second drilling bit of rotary-digging drilling rig is extracted and arrives ground, is formed with that second segment is miscellaneous to fill out subsidence area 9 in second segment rotary digging drilling hole 8；
6th step, configure cement mortar again, and be circulated into second segment rotary digging drilling hole 8 and second segment is miscellaneous fills out in subsidence area 9,
The liquid level of the cement mortar of perfusion forms second segment cement injection mortar post higher than 500 millimeters of the bottom of first paragraph miscellaneous fill layer 1
10；
7th step, second drilling bit of rotary-digging drilling rig is disassembled, the 3rd drilling bit of rotary-digging drilling rig that second step is chosen is arranged on rotation
Dig on rig, the 3rd drilling bit of rotary-digging drilling rig is transferred to the top of second segment cement injection mortar post 10 along first paragraph pile foundation hole 5
On face, after the concrete initial set of second segment cement injection mortar post 10 before final set in this period, in second segment cement injection
The end face center position of mortar post 10 be bored into the bottom of second segment miscellaneous fill layer 7, forms second segment pile foundation hole 11 and the
Two sections of cement mortar retaining walls 12, continue downward drilled dry to the bottom of the 3rd section of miscellaneous fill layer 13, form the 3rd section of rotary digging drilling hole 14,
3rd drilling bit of rotary-digging drilling rig is extracted and arrives ground, the 3rd section is formed with the 3rd section of rotary digging drilling hole 14 and miscellaneous fills out subsidence area 15；
8th step, configure cement mortar again, and be circulated into the 3rd section of rotary digging drilling hole 14 and the 3rd section miscellaneous is filled out subsidence area 15
Interior, the 3rd section of priming petock silt particle is formed on 500 millimeters of the bottom of higher than the 3rd section miscellaneous fill layer 13 of liquid level of the cement mortar of perfusion
Starch post 16；
9th step, the 3rd drilling bit of rotary-digging drilling rig is disassembled, the 4th drilling bit of rotary-digging drilling rig that second step is chosen is arranged on rotation
Dig on rig, the 4th drilling bit of rotary-digging drilling rig is transferred to the top of the 3rd section of cement injection mortar post 16 along second segment pile foundation hole 11
On face, after the concrete initial set of the 3rd section of cement injection mortar post 16 before final set in this period, in the 3rd section of cement injection
The end face center position of mortar post 16 be bored into the bottom of the 3rd section of miscellaneous fill layer 13, forms the 3rd section of pile foundation hole 17 and the
Three sections of cement mortar retaining walls 18, continue downward drilled dry, so circulation, until the bottom of N sections of miscellaneous fill layers, in N sections of rotary diggings
Drilling and N section it is miscellaneous fill out in subsidence area, 500 millimeters of the bottom of higher than N sections miscellaneous fills layer of the liquid level of the cement mortar of perfusion, shape
Into N sections of cement injection mortar posts, after the concrete initial set of N sections of cement injection mortar posts before final set in this period,
The end face center position of N sections of cement injection mortar posts carries out being bored into less than 19 1 meters of depths of original soil layer；Miscellaneous fill layer is completed to bore
The pore-forming of hole pouring pile.
A kind of building waste earth-boring stake forming hole method, comprises the following steps：
The first step, the thickness according to miscellaneous fill layer, N sections are divided into along depth of stratum direction by miscellaneous fill layer, and will be with undisturbed soil
The miscellaneous fill layer latter end of the connection of layer 19 is defined as N sections of miscellaneous fill layers；
Second step, selection bore are more than the churning driven drill bit of drilling machine that bored concrete pile designs aperture；
3rd step, the drilling bit of rotary-digging drilling rig for choosing second step are arranged on rotary drilling rig, and drilled dry is to first paragraph on stake holes position
The bottom of miscellaneous fill layer 1, forms first paragraph rotary digging drilling hole 2, and first drilling bit of rotary-digging drilling rig is extracted and arrives ground, in first paragraph rotation
Dig in drilling 2 and be formed with that first paragraph is miscellaneous to fill out subsidence area 3, in boring procedure, because soil property is soft, cause miscellaneous fill out of first paragraph to collapse
Area 3 substantially covers in the hole madial wall of first paragraph rotary digging drilling hole 2, cleaning first paragraph rotary digging drilling hole 2 and collapse miscellaneous fill；
4th step, configuration cement mortar, and the cement mortar configured is poured into first paragraph rotary digging drilling hole 2 and first paragraph is miscellaneous fills out
In subsidence area 3, first paragraph cement injection mortar post 4 is formed, the minimum diameter of the first paragraph cement injection mortar post 4 formed is big
In the diameter of churning driven drill bit of drilling machine；
After 5th step, the concrete initial set in first paragraph cement injection mortar post 4 before final set in this period, filled in first paragraph
The drilling bit of rotary-digging drilling rig that the end face center position of water filling cement mortar post 4 is chosen with second step carries out being bored into first paragraph miscellaneous fill layer
1 bottom, forms first paragraph pile foundation hole 5 and first paragraph cement mortar retaining wall 6, continues to spud in downwards to second segment miscellaneous fill layer 7
Bottom, form second segment rotary digging drilling hole 8, drilling bit of rotary-digging drilling rig extracted and arrives ground, is formed with second segment rotary digging drilling hole 8
Second segment is miscellaneous to fill out subsidence area 9, because soil property is soft in boring procedure, causes second segment is miscellaneous to fill out the covering second substantially of subsidence area 9
Miscellaneous fill is collapsed in the hole madial wall of section rotary digging drilling hole 8, cleaning second segment rotary digging drilling hole 8；
6th step, configure cement mortar again, and be circulated into second segment rotary digging drilling hole 8 and second segment is miscellaneous fills out in subsidence area 9,
The liquid level of the cement mortar of perfusion forms second segment cement injection mortar post higher than 500 millimeters of the bottom of first paragraph miscellaneous fill layer 1
10, the minimum diameter of the second segment cement injection mortar post 10 formed is more than the diameter of churning driven drill bit of drilling machine；
7th step, the drilling bit of rotary-digging drilling rig for choosing second step transfer to second segment cement injection mortar along first paragraph pile foundation hole 5
On the top surface of post 10, after the concrete initial set of second segment cement injection mortar post 10 before final set in this period, in second segment
The end face center position of cement injection mortar post 10 be bored into the bottom of second segment miscellaneous fill layer 7, forms second segment pile foundation
Hole 11 and second segment cement mortar retaining wall 12, continue downward drilled dry to the bottom of the 3rd section of miscellaneous fill layer 13, form the 3rd section of rotation
Drilling 14 is dug, drilling bit of rotary-digging drilling rig is extracted and arrives ground, the 3rd section is formed with the 3rd section of rotary digging drilling hole 14 and miscellaneous fills out subsidence area
15, because soil property is soft in boring procedure, cause the 3rd section of miscellaneous subsidence area 15 the 3rd section of rotary digging drilling hole 14 of covering substantially filled out
Miscellaneous fill is collapsed in hole madial wall, the 3rd section of rotary digging drilling hole 14 of cleaning；
8th step, configure cement mortar again, and be circulated into the 3rd section of rotary digging drilling hole 14 and the 3rd section miscellaneous is filled out subsidence area 15
Interior, the 3rd section of priming petock silt particle is formed on bottom 500 millimeter of the liquid level higher than second segment miscellaneous fill layer 7 of the cement mortar of perfusion
Starch post 16；
9th step, second step is chosen into drilling bit of rotary-digging drilling rig along second segment pile foundation hole 11 transfer to the 3rd section of cement injection mortar post
On 16 top surface, after the concrete initial set of the 3rd section of cement injection mortar post 16 before final set in this period, in the 3rd section of filling
The end face center position of water filling cement mortar post 16 be bored into the bottom of the 3rd section of miscellaneous fill layer 13, forms the 3rd section of pile foundation hole
17 and the 3rd section of cement mortar retaining wall 18, continue downward drilled dry, so circulation, until the bottom of N section miscellaneous fills layer, in N
Section rotary digging drilling hole and N section it is miscellaneous fill out in subsidence area, the bottom 500 of higher than N sections miscellaneous fills layer of the liquid level of the cement mortar of perfusion
Millimeter, forms N sections of cement injection mortar posts, when after the concrete initial set of N sections of cement injection mortar posts this section before final set
In, carry out being bored into less than 19 1 meters of depths of original soil layer in the end face center position of N sections of cement injection mortar posts；Complete miscellaneous
Fill stratum drilling pouring pile hole.
Configuration cement mortar proportioning be：Cement mortar uses M20 mortars, matches and is：Cement：Flyash：Miberal powder：Water：
River sand=280:80:40:310:1390（kg/m3）.
Claims (2)
1. a kind of building waste earth-boring stake forming hole method, including step once：
The first step, the thickness according to miscellaneous fill layer, N sections are divided into along depth of stratum direction by miscellaneous fill layer, and will be with undisturbed soil
Layer（19）The miscellaneous fill layer latter end of connection is defined as N sections of miscellaneous fill layers；
The different churning driven drill bit of drilling machine of second step, the N number of diameter of selection, and make, the diameter and preformation of n-th drilling bit of rotary-digging drilling rig
The bored concrete pile design aperture in hole is identical, and the diameter of the N-1 drilling bit of rotary-digging drilling rig is more than the diameter of n-th drilling bit of rotary-digging drilling rig,
The diameter of the N-2 drilling bit of rotary-digging drilling rig is more than the diameter of the N-1 drilling bit of rotary-digging drilling rig, by that analogy, determines remaining rotation
The diameter of drill bit of drilling machine is dug, makes the diameter of first drilling bit of rotary-digging drilling rig maximum, the diameter of n-th drilling bit of rotary-digging drilling rig is minimum；
3rd step, first drilling bit of rotary-digging drilling rig for choosing second step are arranged on rotary drilling rig, and drilled dry is arrived on stake holes position
First paragraph miscellaneous fill layer（1）Bottom, formed first paragraph rotary digging drilling hole（2）, first drilling bit of rotary-digging drilling rig is extracted and arrives ground,
In first paragraph rotary digging drilling hole（2）Inside it is formed with that first paragraph is miscellaneous to fill out subsidence area（3）；
4th step, configuration cement mortar, and the cement mortar configured is poured into first paragraph rotary digging drilling hole（2）And first paragraph is miscellaneous
Fill out subsidence area（3）It is interior, form first paragraph cement injection mortar post（4）；
5th step, first drilling bit of rotary-digging drilling rig is disassembled, second drilling bit of rotary-digging drilling rig that second step is chosen is installed to rotation
Dig on rig, in first paragraph cement injection mortar post（4）In concrete initial set after before final set in this period, filled in first paragraph
Water filling cement mortar post（4）End face center position carry out being bored into first paragraph miscellaneous fill layer（1）Bottom, formed first paragraph pile foundation
Hole（5）With first paragraph cement mortar retaining wall（6）, continue downward drilled dry to second segment miscellaneous fill layer（7）Bottom, formed second segment
Rotary digging drilling hole（8）, second drilling bit of rotary-digging drilling rig is extracted and arrives ground, in second segment rotary digging drilling hole（8）Inside it is formed with second segment
It is miscellaneous to fill out subsidence area（9）；
6th step, cement mortar is configured again, and be circulated into second segment rotary digging drilling hole（8）And second segment is miscellaneous fills out subsidence area
（9）Interior, the liquid level of the cement mortar of perfusion is higher than first paragraph miscellaneous fill layer（1）500 millimeters of bottom, formed second segment priming petock
Cement mortar post（10）；
7th step, second drilling bit of rotary-digging drilling rig is disassembled, the 3rd drilling bit of rotary-digging drilling rig that second step is chosen is arranged on rotation
Dig on rig, by the 3rd drilling bit of rotary-digging drilling rig along first paragraph pile foundation hole（5）Transfer to second segment cement injection mortar post（10）
Top surface on, in second segment cement injection mortar post（10）Concrete initial set after before final set in this period, filled in second segment
Water filling cement mortar post（10）End face center position carry out being bored into second segment miscellaneous fill layer（7）Bottom, formed second segment stake
Datum hole（11）With second segment cement mortar retaining wall（12）, continue downward drilled dry to the 3rd section of miscellaneous fill layer（13）Bottom, formed
3rd section of rotary digging drilling hole（14）, the 3rd drilling bit of rotary-digging drilling rig is extracted and arrives ground, in the 3rd section of rotary digging drilling hole（14）It is interior to be formed
There is the 3rd section miscellaneous to fill out subsidence area（15）；
8th step, cement mortar is configured again, and be circulated into the 3rd section of rotary digging drilling hole（14）And the 3rd section miscellaneous filled out subsidence area
（15）It is interior, higher than the 3rd section miscellaneous fill layer of liquid level of the cement mortar of perfusion（13）500 millimeters of bottom, formed the 3rd section perfusion
Cement mortar post（16）；
9th step, the 3rd drilling bit of rotary-digging drilling rig is disassembled, the 4th drilling bit of rotary-digging drilling rig that second step is chosen is arranged on rotation
Dig on rig, by the 4th drilling bit of rotary-digging drilling rig along second segment pile foundation hole（11）Transfer to the 3rd section of cement injection mortar post（16）
Top surface on, in the 3rd section of cement injection mortar post（16）Concrete initial set after before final set in this period, in the 3rd section of filling
Water filling cement mortar post（16）End face center position carry out being bored into the 3rd section of miscellaneous fill layer（13）Bottom, formed the 3rd section of stake
Datum hole（17）With the 3rd section of cement mortar retaining wall（18）, continue downward drilled dry, so circulation, until the bottom of N sections of miscellaneous fill layers
Portion, is filled out in subsidence area N sections of rotary digging drilling holes and N sections are miscellaneous, higher than N section miscellaneous fills layer of liquid level of the cement mortar of perfusion
500 millimeters of bottom, forms N sections of cement injection mortar posts, after the concrete initial set of N sections of cement injection mortar posts before final set
In this period, carry out being bored into original soil layer in the end face center position of N sections of cement injection mortar posts（19）1 meter of depth below
Place；Complete the pore-forming of miscellaneous fill layer cast-in-situ bored pile.
2. a kind of building waste earth-boring stake forming hole method, comprises the following steps：
The first step, the thickness according to miscellaneous fill layer, N sections are divided into along depth of stratum direction by miscellaneous fill layer, and will be with undisturbed soil
The miscellaneous fill layer latter end of the connection of layer 19 is defined as N sections of miscellaneous fill layers；
Second step, selection bore are more than the churning driven drill bit of drilling machine that bored concrete pile designs aperture；
3rd step, the drilling bit of rotary-digging drilling rig for choosing second step are arranged on rotary drilling rig, and drilled dry is to first paragraph on stake holes position
The bottom of miscellaneous fill layer 1, forms first paragraph rotary digging drilling hole 2, and first drilling bit of rotary-digging drilling rig is extracted and arrives ground, in first paragraph rotation
Dig in drilling 2 and be formed with that first paragraph is miscellaneous to fill out subsidence area 3, in boring procedure, because soil property is soft, cause miscellaneous fill out of first paragraph to collapse
Area 3 substantially covers in the hole madial wall of first paragraph rotary digging drilling hole 2, cleaning first paragraph rotary digging drilling hole 2 and collapse miscellaneous fill；
4th step, configuration cement mortar, and the cement mortar configured is poured into first paragraph rotary digging drilling hole 2 and first paragraph is miscellaneous fills out
In subsidence area 3, first paragraph cement injection mortar post 4 is formed, the minimum diameter of the first paragraph cement injection mortar post 4 formed is big
In the diameter of churning driven drill bit of drilling machine；
After 5th step, the concrete initial set in first paragraph cement injection mortar post 4 before final set in this period, filled in first paragraph
The drilling bit of rotary-digging drilling rig that the end face center position of water filling cement mortar post 4 is chosen with second step carries out being bored into first paragraph miscellaneous fill layer
1 bottom, forms first paragraph pile foundation hole 5 and first paragraph cement mortar retaining wall 6, continues to spud in downwards to second segment miscellaneous fill layer 7
Bottom, form second segment rotary digging drilling hole 8, drilling bit of rotary-digging drilling rig extracted and arrives ground, is formed with second segment rotary digging drilling hole 8
Second segment is miscellaneous to fill out subsidence area 9, because soil property is soft in boring procedure, causes second segment is miscellaneous to fill out the covering second substantially of subsidence area 9
Miscellaneous fill is collapsed in the hole madial wall of section rotary digging drilling hole 8, cleaning second segment rotary digging drilling hole 8；
6th step, configure cement mortar again, and be circulated into second segment rotary digging drilling hole 8 and second segment is miscellaneous fills out in subsidence area 9,
The liquid level of the cement mortar of perfusion forms second segment cement injection mortar post higher than 500 millimeters of the bottom of first paragraph miscellaneous fill layer 1
10, the minimum diameter of the second segment cement injection mortar post 10 formed is more than the diameter of churning driven drill bit of drilling machine；
7th step, the drilling bit of rotary-digging drilling rig for choosing second step transfer to second segment cement injection mortar along first paragraph pile foundation hole 5
On the top surface of post 10, after the concrete initial set of second segment cement injection mortar post 10 before final set in this period, in second segment
The end face center position of cement injection mortar post 10 be bored into the bottom of second segment miscellaneous fill layer 7, forms second segment pile foundation
Hole 11 and second segment cement mortar retaining wall 12, continue downward drilled dry to the bottom of the 3rd section of miscellaneous fill layer 13, form the 3rd section of rotation
Drilling 14 is dug, drilling bit of rotary-digging drilling rig is extracted and arrives ground, the 3rd section is formed with the 3rd section of rotary digging drilling hole 14 and miscellaneous fills out subsidence area
15, because soil property is soft in boring procedure, cause the 3rd section of miscellaneous subsidence area 15 the 3rd section of rotary digging drilling hole 14 of covering substantially filled out
Miscellaneous fill is collapsed in hole madial wall, the 3rd section of rotary digging drilling hole 14 of cleaning；
8th step, configure cement mortar again, and be circulated into the 3rd section of rotary digging drilling hole 14 and the 3rd section miscellaneous is filled out subsidence area 15
Interior, the 3rd section of priming petock silt particle is formed on bottom 500 millimeter of the liquid level higher than second segment miscellaneous fill layer 7 of the cement mortar of perfusion
Starch post 16；
9th step, second step is chosen into drilling bit of rotary-digging drilling rig along second segment pile foundation hole 11 transfer to the 3rd section of cement injection mortar post
On 16 top surface, after the concrete initial set of the 3rd section of cement injection mortar post 16 before final set in this period, in the 3rd section of filling
The end face center position of water filling cement mortar post 16 be bored into the bottom of the 3rd section of miscellaneous fill layer 13, forms the 3rd section of pile foundation hole
17 and the 3rd section of cement mortar retaining wall 18, continue downward drilled dry, so circulation, until the bottom of N section miscellaneous fills layer, in N
Section rotary digging drilling hole and N section it is miscellaneous fill out in subsidence area, the bottom 500 of higher than N sections miscellaneous fills layer of the liquid level of the cement mortar of perfusion
Millimeter, forms N sections of cement injection mortar posts, when after the concrete initial set of N sections of cement injection mortar posts this section before final set
In, carry out being bored into less than 19 1 meters of depths of original soil layer in the end face center position of N sections of cement injection mortar posts；Complete miscellaneous
Fill stratum drilling pouring pile hole.
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| CN201710420214.8A CN107268608A (en) | 2017-06-06 | 2017-06-06 | Building waste earth-boring stake forming hole method |
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| CN201710420214.8A CN107268608A (en) | 2017-06-06 | 2017-06-06 | Building waste earth-boring stake forming hole method |
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| CN201710420214.8A Pending CN107268608A (en) | 2017-06-06 | 2017-06-06 | Building waste earth-boring stake forming hole method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755662A (en) * | 2018-05-05 | 2018-11-06 | 深圳市蛇口招商港湾工程有限公司 | Offshore area pouring pile hole construction method and expansion bit |
| CN111561262A (en) * | 2020-05-29 | 2020-08-21 | 贵州建工集团第一建筑工程有限责任公司 | Hole forming method of rotary drilling rig for large-size pile hole in karst area |
| CN111962507A (en) * | 2020-08-20 | 2020-11-20 | 中交一公局集团有限公司 | Pile foundation hole forming method |
| CN112392400A (en) * | 2020-10-28 | 2021-02-23 | 北京住总第一开发建设有限公司 | Hole forming construction process for slope protection pile in complex geological environment |
| CN112411526A (en) * | 2020-11-27 | 2021-02-26 | 中国建筑第四工程局有限公司 | Mortar consolidation construction method for rotary drilling collapse hole in high backfill region |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2765438B2 (en) * | 1993-06-25 | 1998-06-18 | 鹿島建設株式会社 | Sidewall protection method in borehole |
| CN1779081A (en) * | 2004-11-17 | 2006-05-31 | 陈理新 | Re-expendable columnar stairstep pile |
| CN103498466A (en) * | 2013-10-18 | 2014-01-08 | 中国海洋石油总公司 | Construction technique for preventing hole collapse of bored cast-in-place pile |
| CN104005416A (en) * | 2014-04-29 | 2014-08-27 | 中建四局第六建筑工程有限公司 | Method for processing major-diameter hole pile collapsed holes under high and steep slope plain fill back-pressing condition |
| CN205024694U (en) * | 2015-07-30 | 2016-02-10 | 中交一公局第六工程有限公司 | Superplasticity concrete drilling bored concrete pile dado |
| CN205475205U (en) * | 2016-03-01 | 2016-08-17 | 中国建筑第八工程局有限公司 | Dig bored concrete pile soon and meet hole backfill device that collapses |
-
2017
- 2017-06-06 CN CN201710420214.8A patent/CN107268608A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2765438B2 (en) * | 1993-06-25 | 1998-06-18 | 鹿島建設株式会社 | Sidewall protection method in borehole |
| CN1779081A (en) * | 2004-11-17 | 2006-05-31 | 陈理新 | Re-expendable columnar stairstep pile |
| CN103498466A (en) * | 2013-10-18 | 2014-01-08 | 中国海洋石油总公司 | Construction technique for preventing hole collapse of bored cast-in-place pile |
| CN104005416A (en) * | 2014-04-29 | 2014-08-27 | 中建四局第六建筑工程有限公司 | Method for processing major-diameter hole pile collapsed holes under high and steep slope plain fill back-pressing condition |
| CN205024694U (en) * | 2015-07-30 | 2016-02-10 | 中交一公局第六工程有限公司 | Superplasticity concrete drilling bored concrete pile dado |
| CN205475205U (en) * | 2016-03-01 | 2016-08-17 | 中国建筑第八工程局有限公司 | Dig bored concrete pile soon and meet hole backfill device that collapses |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755662A (en) * | 2018-05-05 | 2018-11-06 | 深圳市蛇口招商港湾工程有限公司 | Offshore area pouring pile hole construction method and expansion bit |
| CN108755662B (en) * | 2018-05-05 | 2020-04-03 | 深圳市蛇口招商港湾工程有限公司 | Offshore area bored concrete pile hole-forming construction method and telescopic drill bit |
| CN111561262A (en) * | 2020-05-29 | 2020-08-21 | 贵州建工集团第一建筑工程有限责任公司 | Hole forming method of rotary drilling rig for large-size pile hole in karst area |
| CN111962507A (en) * | 2020-08-20 | 2020-11-20 | 中交一公局集团有限公司 | Pile foundation hole forming method |
| CN112392400A (en) * | 2020-10-28 | 2021-02-23 | 北京住总第一开发建设有限公司 | Hole forming construction process for slope protection pile in complex geological environment |
| CN112411526A (en) * | 2020-11-27 | 2021-02-26 | 中国建筑第四工程局有限公司 | Mortar consolidation construction method for rotary drilling collapse hole in high backfill region |
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Application publication date: 20171020 |