CN110306530A - The construction Treatment Methods of diaphram wall when a kind of experience boulder - Google Patents
The construction Treatment Methods of diaphram wall when a kind of experience boulder Download PDFInfo
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- CN110306530A CN110306530A CN201910604829.5A CN201910604829A CN110306530A CN 110306530 A CN110306530 A CN 110306530A CN 201910604829 A CN201910604829 A CN 201910604829A CN 110306530 A CN110306530 A CN 110306530A
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- boulder
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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
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
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- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a kind of construction Treatment Methods of diaphram wall when experience boulder, by using construction field geology exploration, boring and coring, determine the schemes such as boulder location, boulder detection and boulder confirmation, confirm position existing for construction site boulder, then suitable processing means can be selected according to size, the intensity of boulder, so that no matter facing which kind of boulder in the construction process, there is the solution of corresponding scheme, reasonable effective method has been formulated for the processing of boulder, those conceptual designs are reasonable, simple and effective.
Description
Technical field
The present invention relates to diaphram walls when a kind of construction method of underground continuous wall technical field, specially experience boulder
Construction Treatment Methods.
Background technique
Diaphram wall is that foundation engineering uses a kind of trench machine on the ground, along all side axis of deep excavation project
Line excavates out a long and narrow deep trouth under the conditions of mud off, after clear slot, steel reinforcement cage is hung in slot, then uses tremie method
Underwater concreting with tremie method builds up a unit groove section, so carries out paragraph by paragraph, builds up continuous reinforced concrete wall together in underground
Wall, as intercept water, antiseepage, load-bearing, water-retaining structure.The construction method feature of diaphram wall is: Construction Vibration is small, wall stiffness
Greatly, good integrity, speed of application is fast, can save the cubic metre of earth and stone, can be used in intensive building building deep foundation pit support and carries out inverse make
Method construction can be used for including sandy soil layer, construction etc. in partial size 50mm sandy gravel stratum below.Underground suitable for construction of buildings
Room, market place builet below the ground, parking lot, oil cellar, retaining wall, the deep foundation of skyscraper, reverse construction building enclosure, industry are built
Deep pond, the hole built；Vertical shaft etc..
But when in the actual construction process, continuous wall trench underground is constructed, boulder can be encountered often, these boulders can be significantly
Construction speed is influenced, construction cost is increased, reasonable effective method has been formulated for the processing of boulder, has been that there is an urgent need for solutions at present
Problem.
Summary of the invention
It is above-mentioned to solve the purpose of the present invention is to provide a kind of construction Treatment Methods of diaphram wall when experience boulder
The problem of being proposed in background technique.
To achieve the above object, the invention provides the following technical scheme: it is a kind of meet with boulder when diaphram wall construction
Treatment Methods, including the following steps:
S1, construction field geology exploration: according to geology exploration report, construction site is surveyed, is formed according to boulder
Rule finds out grooving region and is likely to occur boulder location；
S2, boring and coring determine boulder location；The boring and coring is according to location size cloth hole to be drilled in grooving region
If testing hole location, depth needed for being drilled to trenching construction respectively takes out core, and true according to location size hole to be drilled and specification
Surely the quantity and spacing to drill, two sides interlaced arrangement of the test hole location along diaphram wall central axes；
S3, boulder detection: boulder detection is carried out to the multiple exploration holes drilled through in step S2 using ultrasonic detector；
S4, boulder confirmation: in ultrasonic detector detection process, to be likely to occur boulder location with the presence or absence of boulder with
And position, size and the intensity of existing boulder are determined；
S5, huge stone handling: according to position, size and the intensity of boulder determined in S4, the processing of existing boulder is determined
Mode；
(1) broken using deep hole blasting, segmentation boulder；
(2) crusher machine boulder is cleaved using boulder；
(3) impact drill is used, broken drilling processing is carried out to boulder；
(4) when encountering small boulder, boulder is directly grabbed using chute forming machine；
S6, smooth location clear up barrier, in the diaphram wall two sides injection triaxial cement mixing pile to be onstructed
Carry out cell wall reinforcing；
S7, it is constructed on the triaxial cement mixing pile and leads wall；
S8, basis lead wall design position and divide several unit groove sections；
S9 simultaneously injects mud into the unit groove section, and when construction, the mud balance is 1.12~1.15, viscosity 25s
~28s, percent sand < 2%；
Steel reinforcement cage, poured concrete are installed in S10, Xiang Suoshu unit groove, and recycle the construction of diaphragm wall simultaneously
Mud use to be recycled in unit groove is finished to the construction of construction of diaphragm wall unit；
S11, repetition step S6~S10 finish the remaining construction of diaphragm wall unit construction.
As a preferred technical solution of the present invention, the method for the detection of boulder described in step S3 further includes visiting
It is put into pvc pipe under in gaging hole, Process, pvc pipe bottom end seal are opened up on pvc pipe tube wall；Water is filled into instrument connection again,
Electrode is placed respectively in pvc pipe in adjacent two hole, and across hole detection is then carried out using high-density resistivity instrument and acquires data,
Resistance view is formed according to collected data, and determines boulder position.
As a preferred technical solution of the present invention, broken using deep hole blasting described in step S5, segmentation boulder,
Its specific steps includes as described below:
S1, setting blast hole: determining explosion hole site in the location there are boulder, and the size and intensity further according to boulder are bored
It constructs to form blast hole in hole:
S2, explosive is contained in blast hole: the unit consumption amount of boulder is obtained according to boulder explosion unit consumption amount calculation formula, calculate
Explosive charge needed for each blast area boulder explosion, is evenly distributed in each blast hole；
S3, it finishes to whole blast hole powder charges, after inspection is errorless, is connected all leads with initiator, prepare detonation；
S4, preparation before explosion is carried out, starts explosion；
S5, to the slot width blast working after, carry out the drillhole blasting of next slot width.
As a preferred technical solution of the present invention, impact drill is used described in step S5, boulder is crushed
Drilling processing, specifically: huge stone handling uses the leading shock treatment of impact drill of advantage of lower cost, to full capacity to can not grab
Small boulder, big boulder, basement rock protrusion, cataclastic shape strong-weathered rock impacted, be aided with backfill slabstone, rubble, geological drilling rig side
To drilling, deviation, inclination boulder are handled.
As a preferred technical solution of the present invention, boulder, root are directly grabbed using chute forming machine described in step S5
According to advance geologic results of drilling, small boulder below for 0.8 meter of diameter is directly constructed using chute forming machine, most of such small
Boulder can be grabbed directly, but also encountered the strange boulder of boulder deviation, shape and be difficult to the phenomenon that grabbing, and small part is difficult to grab small
Boulder can carry out step (3) using impact drill, carry out the method that broken drilling is handled to boulder.
Compared with prior art, the beneficial effects of the present invention are: the present invention is a kind of when meeting with boulder, diaphram wall is applied
Work Treatment Methods determine boulder location, boulder detection and boulder confirmation by using construction field geology exploration, boring and coring
Etc. schemes, confirm position existing for construction site boulder, suitable processing hand then can be selected according to the size of boulder, intensity
Section has the solution of corresponding scheme so that no matter facing which kind of boulder in the construction process, has formulated conjunction for the processing of boulder
Effective method is managed, those conceptual designs are reasonable, simple and effective.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of technical solution: the construction Treatment Methods of diaphram wall when a kind of experience boulder, including with
Under several steps:
S1, construction field geology exploration: according to geology exploration report, construction site is surveyed, is formed according to boulder
Rule finds out grooving region and is likely to occur boulder location；
S2, boring and coring determine boulder location；The boring and coring is according to location size cloth hole to be drilled in grooving region
If testing hole location, depth needed for being drilled to trenching construction respectively takes out core, and true according to location size hole to be drilled and specification
Surely the quantity and spacing to drill, two sides interlaced arrangement of the test hole location along diaphram wall central axes；
S3, boulder detection: boulder detection is carried out to the multiple exploration holes drilled through in step S2 using ultrasonic detector；
S4, boulder confirmation: in ultrasonic detector detection process, to be likely to occur boulder location with the presence or absence of boulder with
And position, size and the intensity of existing boulder are determined；
S5, huge stone handling: according to position, size and the intensity of boulder determined in S4, the processing of existing boulder is determined
Mode；
(1) broken using deep hole blasting, segmentation boulder；
(2) crusher machine boulder is cleaved using boulder；
(3) impact drill is used, broken drilling processing is carried out to boulder；
(4) when encountering small boulder, boulder is directly grabbed using chute forming machine；
S6, smooth location clear up barrier, in the diaphram wall two sides injection triaxial cement mixing pile to be onstructed
Carry out cell wall reinforcing；
S7, it is constructed on the triaxial cement mixing pile and leads wall；
S8, basis lead wall design position and divide several unit groove sections；
S9 simultaneously injects mud into the unit groove section, and when construction, the mud balance is 1.12~1.15, viscosity 25s
~28s, percent sand < 2%；
Steel reinforcement cage, poured concrete are installed in S10, Xiang Suoshu unit groove, and recycle the construction of diaphragm wall simultaneously
Mud use to be recycled in unit groove is finished to the construction of construction of diaphragm wall unit；
S11, repetition step S6~S10 finish the remaining construction of diaphragm wall unit construction.
Further, boulder described in step S3 detection method further include, in exploration hole under be put into pvc pipe, PVC
Process, pvc pipe bottom end seal are opened up on tube wall；Water is filled into instrument connection again, is divided in the pvc pipe in adjacent two hole
Not Fang Zhi electrode, across hole detection is then carried out using high-density resistivity instrument and acquires data, is formed according to collected data
Resistance view, and determine boulder position.
Further, segmentation boulder broken using deep hole blasting described in step S5, specific steps include following institute
It states:
S1, setting blast hole: determining explosion hole site in the location there are boulder, and the size and intensity further according to boulder are bored
It constructs to form blast hole in hole:
S2, explosive is contained in blast hole: the unit consumption amount of boulder is obtained according to boulder explosion unit consumption amount calculation formula, calculate
Explosive charge needed for each blast area boulder explosion, is evenly distributed in each blast hole；
S3, it finishes to whole blast hole powder charges, after inspection is errorless, is connected all leads with initiator, prepare detonation；
S4, preparation before explosion is carried out, starts explosion；
S5, to the slot width blast working after, carry out the drillhole blasting of next slot width.
Further, impact drill is used described in step S5, and broken drilling processing is carried out to boulder, specifically: boulder
Processing uses the leading shock treatment of impact drill of advantage of lower cost, to full capacity to small boulder, the big boulder, basement rock that can not be grabbed
Protrusion, cataclastic shape strong-weathered rock are impacted, and backfill slabstone, rubble, geological drilling rig flank hole are aided with, lonely to deviation, inclination
Stone is handled.
Further, boulder is directly grabbed using chute forming machine described in step S5, it is right according to advance geologic results of drilling
It in 0.8 meter of diameter small boulder below, is directly constructed using chute forming machine, most of such small boulder can be grabbed directly, but also be met
It is difficult to the phenomenon that grabbing to boulder deviation, the strange boulder of shape, small part, which is difficult to the small boulder grabbed, can carry out step (3) use
Impact drill, the method that broken drilling processing is carried out to boulder.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. the construction Treatment Methods of diaphram wall when a kind of experience boulder, which is characterized in that including the following steps:
S1, construction field geology exploration: according to geology exploration report, construction site is surveyed, rule is formed according to boulder
It finds out grooving region and is likely to occur boulder location；
S2, boring and coring determine boulder location；The boring and coring is to be laid to survey according to location hole to be drilled in grooving region size
Prospect hole position, depth needed for being drilled to trenching construction respectively takes out core, and is determined and bored according to location size hole to be drilled and specification
The quantity and spacing in hole, two sides interlaced arrangement of the test hole location along diaphram wall central axes；
S3, boulder detection: boulder detection is carried out to the multiple exploration holes drilled through in step S2 using ultrasonic detector；
S4, boulder confirmation: in ultrasonic detector detection process, it whether there is boulder and institute to boulder location is likely to occur
There are the position of boulder, size and intensity to be determined；
S5, huge stone handling: according to position, size and the intensity of boulder determined in S4, the processing mode of existing boulder is determined；
(1) broken using deep hole blasting, segmentation boulder；
(2) crusher machine boulder is cleaved using boulder；
(3) impact drill is used, broken drilling processing is carried out to boulder；
(4) when encountering small boulder, boulder is directly grabbed using chute forming machine；
S6, smooth location clear up barrier, carry out in the diaphram wall two sides injection triaxial cement mixing pile to be onstructed
Cell wall is reinforced；
S7, it is constructed on the triaxial cement mixing pile and leads wall；
S8, basis lead wall design position and divide several unit groove sections；
S9 simultaneously injects mud into the unit groove section, and when construction, the mud balance is 1.12~1.15, and viscosity 25s~
28s, percent sand < 2%；
Steel reinforcement cage, poured concrete are installed in S10, Xiang Suoshu unit groove, and recycle the construction of diaphragm wall unit simultaneously
Mud use to be recycled in slot is finished to the construction of construction of diaphragm wall unit；
S11, repetition step S6~S10 finish the remaining construction of diaphragm wall unit construction.
2. the construction Treatment Methods of diaphram wall when a kind of experience boulder according to claim 1, which is characterized in that step
The method of the detection of boulder described in rapid S3 further includes, in exploration hole under be put into pvc pipe, opened up on pvc pipe tube wall intensive small
Hole, pvc pipe bottom end seal；Water is filled into instrument connection again, electrode is placed respectively in the pvc pipe in adjacent two hole, then adopts
Across hole detection is carried out with high-density resistivity instrument and acquires data, forms resistance view according to collected data, and determine boulder
Position.
3. the construction Treatment Methods of diaphram wall when a kind of experience boulder according to claim 1, which is characterized in that step
Broken using deep hole blasting described in rapid S5, segmentation boulder, specific steps include as described below:
S1, setting blast hole: determining explosion hole site in the location there are boulder, and the size and intensity drilling further according to boulder are applied
Work forms blast hole:
S2, explosive is contained in blast hole: the unit consumption amount of boulder is obtained according to boulder explosion unit consumption amount calculation formula, calculate each
Explosive charge needed for the boulder explosion of blast area, is evenly distributed in each blast hole；
S3, it finishes to whole blast hole powder charges, after inspection is errorless, is connected all leads with initiator, prepare detonation；
S4, preparation before explosion is carried out, starts explosion；
S5, to the slot width blast working after, carry out the drillhole blasting of next slot width.
4. the construction Treatment Methods of diaphram wall when a kind of experience boulder according to claim 1, which is characterized in that step
Impact drill is used described in rapid S5, broken drilling processing is carried out to boulder, specifically: huge stone handling uses advantage of lower cost
The leading shock treatment of impact drill, to full capacity to small boulder, big boulder, basement rock protrusion, the cataclastic shape strong-weathered rock that can not be grabbed
It is impacted, is aided with backfill slabstone, rubble, geological drilling rig flank hole, deviation, inclination boulder are handled.
5. the construction Treatment Methods of diaphram wall when a kind of experience boulder according to claim 1, which is characterized in that step
Boulder is directly grabbed using chute forming machine described in rapid S5, it is below small for 0.8 meter of diameter according to advance geologic results of drilling
Boulder is directly constructed using chute forming machine, and most of such small boulder can be grabbed directly, but it is strange also to encounter boulder deviation, shape
Boulder is difficult to the phenomenon that grabbing, and small part, which is difficult to the small boulder grabbed, can carry out step (3) using impact drill, carries out brokenly to boulder
The method of broken drilling processing.
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Cited By (1)
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Application publication date: 20191008 |