CN107893659A - A kind of shaft excavation construction method for charging of being unearthed by underground - Google Patents
A kind of shaft excavation construction method for charging of being unearthed by underground Download PDFInfo
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- CN107893659A CN107893659A CN201710970399.XA CN201710970399A CN107893659A CN 107893659 A CN107893659 A CN 107893659A CN 201710970399 A CN201710970399 A CN 201710970399A CN 107893659 A CN107893659 A CN 107893659A
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- 238000010276 construction Methods 0.000 title claims abstract description 88
- 238000009412 basement excavation Methods 0.000 title claims abstract description 40
- 239000004567 concrete Substances 0.000 claims abstract description 35
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 239000002689 soil Substances 0.000 claims abstract description 14
- 239000007921 spray Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000032258 transport Effects 0.000 claims description 9
- 239000004568 cement Substances 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 239000000428 dust Substances 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- 230000008901 benefit Effects 0.000 description 7
- 239000011378 shotcrete Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- -1 thickness 0.30m Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D5/00—Lining shafts; Linings therefor
- E21D5/04—Lining shafts; Linings therefor with brick, concrete, stone, or similar building materials
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D7/00—Shaft equipment, e.g. timbering within the shaft
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of shaft excavation construction method be unearthed and fed by underground, comprise the following steps：It is interior on construction ground to perform vertical shaft hole and construction passage, the bottom of vertical shaft hole is connected by the construction passage with the existing underground space；In the outside of vertical shaft hole from top to bottom excavating shaft, will be transported at existing vertical shaft that the soil body caused by excavating shaft has after vertical shaft hole and construction passage out of the underground space successively；During shaft excavation, first at the top of excavating shaft and fore shaft circle is performed；Then proceed to downward excavating shaft, concrete mix is transported to the bottom of vertical shaft hole after existing vertical shaft, the underground space, construction passage successively simultaneously, and the shaft wall for having excavated part being pointed to by being arranged on the spray windlass of vertical shaft hole bottom below fore shaft circle performs concrete guard wall.Greatly reduce construction site area, solve removal problem；Reduce removal, alleviate noise, dust, road occupying etc. and disturb residents.
Description
Technical field
The present invention relates to Excavation Technology of Shafts field, it particularly relates to which a kind of pass through the perpendicular of the unearthed charging in underground
Well excavation construction method.
Background technology
With the fast development of China's metro construction, heavy difficult point engineering in planning, long and pending is removed step by step
The stage of history is gone up.It is beginning that construction site therein, which is removed, stand in the breach, extremely difficult problem.Beijing
Iron Art Museum station C gateways evacuation mouth Construction of Silo is exactly a typical illustration.
Evacuation mouth vertical shaft is located at Wusi Dajie and Wangfujing Dajie intersection the southeast, open cut rectangular frame structure, foreign steamer
Wide 11.52 × 5.60m of size, deep 15.61m.
Traditional way is shaft excavation by charging construction method of being unearthed on well.Shaft perimeter needs to provide about 460 ㎡'s
Construction site.For setting air compressor machine, mixing machine, spray windlass；Deposit the placing of material such as native, unearthed, sand material, cement, grid.But
The live actual construction site for there was only 130 ㎡.If according to the conventional method, its construction site can not meet to require, it is impossible to enter
Row construction.
Its main cause is：1）Bustling downtown area removal expense is high,（The Yuan/㎡ of removal expense 250,000）, construction costs can not hold
By；2）Narrow construction site, it is impossible to which arrangement deposits Tu Chang；Loading machine, haulage vehicle can not operate；Various machineries and material can not
Arrangement, stack.
The problem of in correlation technique, effective solution is not yet proposed at present.
The content of the invention
For the above-mentioned technical problem in correlation technique, the present invention proposes a kind of shaft excavation for charging of being unearthed by underground
Construction method, using resources such as the existing construction site in station, equipment, to solve the unearthed charging problem of shaft excavation.
To realize above-mentioned technical purpose, the technical proposal of the invention is realized in this way：
A kind of shaft excavation construction method for charging of being unearthed by underground, comprises the following steps：
S1 is interior on construction ground to perform vertical shaft hole and construction passage, make the bottom of the vertical shaft hole by the construction passage with
The existing underground space is connected；
S2 is in the outside of the vertical shaft hole from top to bottom excavating shaft, by the soil body caused by excavating shaft successively by described
Transported at the existing vertical shaft having after vertical shaft hole and construction passage out of described the underground space；
During S3 shaft excavations, first at the top of excavating shaft and fore shaft circle is performed；
S4 then proceedes to downward excavating shaft, while concrete mix is passed through into the existing vertical shaft, the underground space successively, applied
Be transported to the bottom of the vertical shaft hole after work passage, and by be arranged on the spray windlass of the vertical shaft hole bottom be pointed to it is described
The shaft wall for having excavated part below fore shaft circle performs concrete guard wall.
Further, after the completion of S5 shaft excavations, the construction passage is backfilled.
Further, the internal diameter 0.8m of the vertical shaft hole, the concrete guard wall thickness are 0.1m.
Further, the headroom wide 3.0m, clear height 3.5m of the construction passage.
Further, the soil body and concrete mix are transported by electro-tricycle.
Further, the spray windlass is connected with high-pressure air hose, and the high-pressure air hose is through the vertical shaft hole 1 and extends
At to the shaft wall for having excavated part.
Further, by high-pressure water pipe successively after the existing vertical shaft, the underground space, construction passage through described perpendicular
Wellhole hole and extending to has been excavated at the shaft wall of part.
Further, the concrete mix includes microlith, sand, cement, accelerator.
Further, borehole wall supporting is provided between the shaft wall and the concrete guard wall.
Beneficial effects of the present invention：It is unearthed and is fed by underground, so as to greatly reduce construction site area, solves removal
Problem；Construction site area is reduced, reduces removal, alleviate noise, dust, road occupying etc. and disturb residents；Reduce social contradications；
The utilization rate of the resources such as existing construction site, equipment, electric power is improved, the arrangement pneumatics that its Construction of Silo place need not repeat
Machine, mixing machine；The arrangement that need not be repeated deposits the equipment such as Tu Chang, loading machine；Water, electric increase-volume are not needed, improves economic benefit,
Removal expense is reduced, has saved construction costs.Its social and economic benefits highly significant.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the plane of the shaft excavation construction method fed of being unearthed by underground described according to embodiments of the present invention
Figure；
Fig. 2 is that the underground of the shaft excavation construction method by the unearthed charging in underground described according to embodiments of the present invention is unearthed
Schematic diagram；
Fig. 3 is that the underground of the shaft excavation construction method by the unearthed charging in underground described according to embodiments of the present invention is fed
Schematic diagram；
Fig. 4 is the flow chart of the shaft excavation construction method fed of being unearthed by underground described according to embodiments of the present invention.
In figure：
1st, vertical shaft hole；2nd, construction passage；3rd, fore shaft circle；4th, borehole wall supporting；5th, construction site；6th, existing vertical shaft；7th, road is fed
Line；8th, concrete mix；9th, windlass is sprayed；10th, exit and entrance；11st, the underground space；12nd, high-pressure air hose；13rd, high-pressure water pipe；
14th, electro-tricycle；15th, be unearthed route.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained, belong to what the present invention protected
Scope.
As shown in Fig. 1 ~ Fig. 4, described a kind of shaft excavation fed of being unearthed by underground according to embodiments of the present invention is applied
Work method, comprises the following steps：
S1 performs vertical shaft hole 1 and construction passage 2 in 5 on construction ground, the bottom of the vertical shaft hole 1 is led to by the construction
Road 2 is connected with the existing underground space 11；
The soil body caused by excavating shaft is passed through institute in the outside of the vertical shaft hole 1 from top to bottom excavating shaft by S2 successively
State and transported at the existing vertical shaft 6 having after vertical shaft hole 1 and construction passage 2 out of described the underground space 11；
During S3 shaft excavations, first at the top of excavating shaft and fore shaft circle is performed；
S4 then proceedes to downward excavating shaft, while concrete mix is passed through into the existing vertical shaft, the underground space successively, applied
Be transported to the bottom of the vertical shaft hole after work passage, and by be arranged on the spray windlass of the vertical shaft hole bottom be pointed to it is described
The shaft wall for having excavated part below fore shaft circle performs concrete guard wall.
In one particular embodiment of the present invention, after the completion of S5 shaft excavations, the construction passage 2 is backfilled.
In one particular embodiment of the present invention, the internal diameter 0.8m of the vertical shaft hole 1, the concrete guard wall thickness
For 0.1m.
In one particular embodiment of the present invention, the headroom wide 3.0m, clear height 3.5m of the construction passage 2.
In one particular embodiment of the present invention, the soil body and concrete mix 8 is transported by electro-tricycle 14
It is defeated.
In one particular embodiment of the present invention, the spray windlass 9 is connected with high-pressure air hose 12, the high-pressure air hose 12
Excavated through the vertical shaft hole 1 and extending at the shaft wall of part.
In one particular embodiment of the present invention, by high-pressure water pipe 13 successively by the existing vertical shaft 6, the underground space
11st, pass through the vertical shaft hole 1 after construction passage 2 and extend to and excavated at the shaft wall of part.
In one particular embodiment of the present invention, the concrete mix 8 includes microlith, sand, cement, accelerator.
In one particular embodiment of the present invention, it is provided with the borehole wall between the shaft wall and the concrete guard wall
Supporting 4.
In order to facilitate the above-mentioned technical proposal of the present invention is understood, the above-mentioned skill below by way of specifically used mode to the present invention
Art scheme is described in detail.
The present invention is using resources such as the existing construction site in station, equipment, to solve the unearthed charging problem of shaft excavation.It is logical
Cross and apply manually digging hole, apply the means such as construction passage to realize.The present invention is fed due to being unearthed using underground, is greatly reduced and is applied
Workshop ground area, solves removal problem.Constructed using this method：The construction site 5 of vertical shaft only needs 130 ~ 180 ㎡, for setting electricity
Cucurbit, grid, Steel Reinforcing Bar Material, small machine, placing of material, manual operation space etc..This mode solves 1）It is difficult to remove；2）
Narrow construction site, it is impossible to which arrangement deposits Tu Chang, and loading machine, transport vehicle can not operate, and various machineries and material can not be arranged, heap
The problem put.
Comprise the concrete steps that：Apply vertical shaft hole 1 → applying construction passage 2 → and apply the 3 → shaft excavation of fore shaft circle and supporting
→ backfill construction passage 2.
1）Apply vertical shaft hole 1.Implemented using manually digging hole.The internal diameter of vertical shaft hole 1 is preferably 0.8m, using coagulation
Soil makees retaining wall, thickness 10cm.The plan-position of borehole and depth requirements connect with the top for passage 2 of constructing, and combination wind,
The arrangement of water, electric line, it is unearthed and feeds the combined factors consideration such as convenient, machine drilling can also be used.0.5 ~ 0.8m of aperture, is adopted
Make retaining wall, 5 ~ 10mm of wall thickness with bellows.
It should ensure that the vertical shaft that need to be excavated nearby has the available underground space 11 before excavation, and the underground space 11 connects
Existing vertical shaft 6, place is provided with existing unearthed charging place, equipment on the existing well of vertical shaft 6.Certainly it is liftoff in the vertical shaft that need to be excavated
Lower space 11 farther out, the underground space 11 and it is existing it is unearthed charging place equipment road be not communicated with, need excavating shaft nearby do not have
In the case of the available underground space can also by by vertical shaft hole 1, the underground space 11, it is existing it is unearthed charging place equipment
Realized after connection or creation other conditions.
2）Apply construction passage 2.Constructed using benching tunnelling method, the wide construction headroom of passage 2 is preferably 3.0m, and free height is preferably
3.5m；Its plan-position requires that both ends connect with vertical shaft hole 1, the existing underground space 11 respectively；Its gradient is more preferably less than
12%；Passage supporting parameter is C20 gunite concretes, thickness 0.30m, steel grating cage bar 4 Φ 22, stirrup φ 8 ,@=200；Using
Benching tunnelling method is constructed, and 0.5m is excavated in often circulation, and the installation Pin of steel grating one, steel grating, reinforcing bar, C20 gunite concretes etc. erects from existing
Jing6Chu is fed.
According to specific design drawing, project scale, means of transport, the feed process that is unearthed, construction passage length, geology bar
The actual conditions such as part, the cross dimensions of construction passage 2 can reduce or increase；Its gradient, supporting parameter, excavation method can be made
Adjustment and change.Particularly arch runs into sandy soils, or under when wearing important building, it is necessary to take grouting with small pipe, deep hole note
The measures such as slurry.
Certainly also can first apply construction passage 2, after apply vertical shaft hole 1 or vertical shaft hole 1, construction 2 parallel work of passage
Industry, but when vertical shaft hole 1, construction 2 parallel operations of passage, the joint of the two, the distance that to stagger is constructed respectively, prevent from caving in
And cause dangerous phenomenon.
3）Shaft excavation and apply fore shaft circle 3.By shaft excavation to the bottom of fore shaft circle 3, the soil body in digging process is abandoned
In vertical shaft hole 1, the bottom electro-tricycle 14 of vertical shaft hole 1 connects soil, and according to unearthed route 15 successively by constructing
The underground of spoir and existing vertical shaft 6 is deposited at heatable adobe sleeping platform after passage 2, the underground space 11, then passes through the side of lifting of grabbing bucket, machinery outward transport
Formula spoir.Electro-tricycle 14 can use other means of transports to substitute.
The specific of fore shaft circle 3 applies step and is：Assembling reinforcement, construct, pay attention to pre-buried downwards by design drawing, job specfication
The longitudinally connected muscle of steel grating；Formwork erection, using steel form or glued board formwork erection, pay attention to firm supporting, pre-buried portal frame, steel ladder, shield
The built-in fittings such as column, wind, water, electricity, casting concrete, using commerical ready-mixed concrete, directly or two-wheel car is had bad luck and shaken into mould, shock club
Smash, concrete surface plastic covering film and water seasoning；Portal frame, electric hoist are installed, fore shaft circle concrete reaches 70% intensity
Afterwards, installed, coordinated using small-sized machine, manual site assembles portal frame, in place, welding, then installs I-steel and leads
Rail, electric hoist, the main function of electric hoist is steel grating lifting, and small machine is lifted.
4）Shaft excavation and supporting
Continue excavating shaft, the soil body in digging process, which continues through aforesaid way and is transported to along the route 15 that is unearthed, to be deposited at heatable adobe sleeping platform.Often
After excavating 0.5m depths, borehole wall supporting 4 is made in installation steel grating, and steel grating is processed by processing space, is transported to by the vertical shaft that need to be excavated, warp
Electric hoist on well is lifted to the scope of operation, artificial in place, is tightened connecting bolt, is welded to connect muscle, assembling reinforcement mesh sheet.Pay attention to outer
Profile linear dimension is accurate, and longitudinally connected muscle reserves downwards the lap of splice, and bolt and welding quality meet the requirements everywhere, steel grating peace
Gunite concrete mix 8 after the completion of dress, concrete grade, match ratio in concrete mix 8 should be by design and laboratories
Charger sheet is configured, and concrete is transported near the bottom of vertical shaft hole 1 by feeding route 7, and charging route will be specifically, will be thin
The buying such as stone, sand, cement, accelerator, it is stored at the existing construction site on the existing well of vertical shaft 6；Shift to an earlier date 5 ~ 10 as needed
Minute carries out dispensing, mix；Concrete mix 8 times is arrived to the bottoms of existing vertical shaft 6 by existing blanking equipment；Using electronic
The splicing of tricycle 14 simultaneously transports to the spray side discharging of windlass 9；Artificial loading, by high-pressure air hose 12, high-pressure water pipe 13 by vertical shaft hole 1
Gunite concrete mix 8 after to the scope of operation.Wind, water, electric line are arranged along the side of construction passage 2.Concrete mix 8
Commodity gunite concrete material can be used, and using other transports, machinery, method.
After the completion of shaft excavation and supporting, a part of exit and entrance 10 is excavated using the vertical shaft scope of operation, is then applied
The secondary lining of exit and entrance 10, vertical shaft.
5）Backfill construction passage 2.When passage 2 of constructing backfills, storage nearby needs the soil body backfilled at the scene in advance, and divides
Section, layering, retreat backfill, compacting.Certainly according to on-site actual situations, different materials, distinct methods can also be used；Such as
Also to abolish or stay at this after fruit and use it for anything else, can not backfill temporarily.
It is of the present invention to be applied by the shaft excavation construction method and charging of being unearthed on traditional well of the unearthed charging in underground
Work mode compares, except that：
It is unearthed and is fed by underground, is excavated and be unearthed and can directly abandon in vertical shaft hole 1, electro-tricycle 14 carries out connecing soil, and transports to
Heatable adobe sleeping platform is deposited in the existing underground of vertical shaft 6, so as to be unearthed using existing construction site, equipment, and need not repeat to set pneumatics
The equipment such as machine, mixing machine.And use charging form of construction work of being unearthed on well to need to set gantry suspension bucket, or grab bucket in well head, or rise
Heavy-duty machine deposits Tu Chang, it is necessary to big machinery and operation field, it is necessary to set.And need to set sand material, cement etc. stack place with
And mix and stir, air feed, the equipment such as power supply.
Construction site is reduced using underground charging of being unearthed, has saved removal expense；Water is saved, electric expense of increasing capacity is used, solution
Determine the removal problem of construction site.
To sum up, by means of the above-mentioned technical proposal of the present invention, at least have the following advantages that, be advantageous to carry in technical benefits
The design of high building industry, construction level；To open new approach in complex ground constructing underground building；In economic benefit
1）Save removal expense：25×（460-130）=8,250 ten thousand yuan；（Remove monovalent：Ten thousand Yuan/㎡）×（Save area）
2）Save power supply for construction expense of increasing capacity：2000000 yuan
3）Save air compressor machine one：200000 yuan
4）Save mixing machine one：50000 yuan
5）Put into borehole expense：- 0.05 × 13=- 0.65 ten thousand yuan；（Unit price：Ten thousand yuan/m）×（Stake is long：m）
6）Input construction passage and backfill expense：- 0.6 × 29=- 17.4 ten thousand yuan；（Unit price：Ten thousand yuan/m）×（Grow in hole：m）
Above expense adds up to：8250+200+20+5-0.65-17.4=8456.95 ten thousand yuan；
Reduce removal in social benefit, alleviate noise, dust, road occupying etc. and disturb residents, reduce social contradications, saved work
Journey cost, its social benefit highly significant.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (9)
1. a kind of shaft excavation construction method for charging of being unearthed by underground, it is characterised in that comprise the following steps：
S1 is on construction ground（5）Inside perform vertical shaft hole（1）With construction passage（2）, make the vertical shaft hole（1）Bottom pass through
The construction passage（2）With the existing underground space（11）It is connected；
S2 is in the vertical shaft hole（1）Outside from top to bottom excavating shaft, the soil body caused by excavating shaft is passed through successively
The vertical shaft hole（1）With construction passage（2）Afterwards from the underground space（11）The existing vertical shaft inside having（6）Place transports；
During S3 shaft excavations, first at the top of excavating shaft and fore shaft circle is performed（3）；
S4 then proceedes to downward excavating shaft, while by concrete mix（8）Pass through the existing vertical shaft successively（6）, underground
Space（11）, construction passage（2）After be transported to the vertical shaft hole（1）Bottom, and by being arranged on the vertical shaft hole（1）Bottom
The spray windlass in portion（9）It is pointed to the fore shaft circle（3）The shaft wall for having excavated part of lower section performs concrete guard wall.
2. the shaft excavation construction method of charging according to claim 1 of being unearthed by underground, it is characterised in that S5 vertical shafts
After the completion of excavation, the construction passage is backfilled（2）.
3. the shaft excavation construction method of charging according to claim 1 of being unearthed by underground, it is characterised in that described perpendicular
Wellhole hole（1）Internal diameter 0.8m, the concrete guard wall thickness is 0.1m.
4. the shaft excavation construction method of charging according to claim 1 of being unearthed by underground, it is characterised in that described to apply
Work passage（2）Headroom wide 3.0m, clear height 3.5m.
5. the shaft excavation construction method of charging according to claim 1 of being unearthed by underground, it is characterised in that the soil
Body and concrete mix（8）Pass through electro-tricycle（14）Transport.
6. the shaft excavation construction method of charging according to claim 1 of being unearthed by underground, it is characterised in that the spray
Windlass（9）It is connected with high-pressure air hose（12）, the high-pressure air hose（12）Through the vertical shaft hole（1）And extend to excavation portion
At the shaft wall divided.
7. the shaft excavation construction method of charging according to claim 1 of being unearthed by underground, it is characterised in that by high pressure
Water pipe（13）Pass through the existing vertical shaft successively（6）, the underground space（11）, construction passage（2）The vertical shaft hole is passed through afterwards（1）
And extend to and excavated at the shaft wall of part.
8. the shaft excavation construction method of charging according to claim 1 of being unearthed by underground, it is characterised in that described mixed
Coagulate native mix（8）Including microlith, sand, cement, accelerator.
9. the shaft excavation construction method of charging according to claim 1 of being unearthed by underground, it is characterised in that described perpendicular
Borehole wall supporting is provided between the well borehole wall and the concrete guard wall（4）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710970399.XA CN107893659A (en) | 2017-10-18 | 2017-10-18 | A kind of shaft excavation construction method for charging of being unearthed by underground |
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| CN201710970399.XA CN107893659A (en) | 2017-10-18 | 2017-10-18 | A kind of shaft excavation construction method for charging of being unearthed by underground |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206550A (en) * | 2019-05-27 | 2019-09-06 | 中铁十八局集团第四工程有限公司 | A kind of complicated geological excavates the construction of shield received well |
| CN111022057A (en) * | 2019-12-21 | 2020-04-17 | 西安建筑科技大学 | Subway tunnel well entering construction method and construction well supporting structure in loess region |
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