CN101598022A - The job practices of vertical simultaneous drifting - Google Patents
The job practices of vertical simultaneous drifting Download PDFInfo
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- CN101598022A CN101598022A CNA2009101366813A CN200910136681A CN101598022A CN 101598022 A CN101598022 A CN 101598022A CN A2009101366813 A CNA2009101366813 A CN A2009101366813A CN 200910136681 A CN200910136681 A CN 200910136681A CN 101598022 A CN101598022 A CN 101598022A
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Abstract
The invention provides a kind of job practices that is used for the simultaneous drifting of vertical and high inclination-angle inclined shaft.Method provided by the invention adopts the pick block to separate parallel construction, do not disturb mutually.The present invention can overcome drawbacks such as existing job practices technical sophistication, equipment are various, safe mass difference; Can provide the job practices that a kind of job practices is simple, construction environment good, borehole wall quality is high again.Simultaneously, can also solve the problem that existing vertical is difficult to solve the ground borehole wall " leakage trickle " for a long time.
Description
The present invention is a kind of job practices that is used for vertical and high inclination-angle inclined shaft, and it is specially adapted to pass the construction under deep topsoil and the soft base rock condition.
China's coal-mine has the mine more than 60% to adopt the shaft development mode at present, the also most shaft development modes that adopt of metallurgical mine.Because the shaft construction technical sophistication, the place is narrow, environment is abominable, strongly professional, equipment is various, poor stability.The vertical construction period accounts for 40%～50% (1) of overall stage of mine construction.Building the mixed construction method with the vertical pick of generally adopting at present both at home and abroad is example, exists also that the borehole wall connects that stubble is many, driving and masonry construction is alternately frequent, complicated organization, workmanship are difficult to control, the borehole wall " leakage trickle " is difficult to drawbacks (2) such as solution.
The present invention can overcome the drawback of existing shaft construction, can reach the purpose that construction organization is simple, construction environment good, borehole wall quality is good, safe coefficient is high again.
Vertical simultaneous drifting job practices of the present invention adopts exactly that pick is built separately, parallel construction, do not disturb mutually.As shown in Figure 1: wherein (1) borehole wall casting place (2) template (3) borehole wall levelling device (4) borehole wall (5) borehole wall clearance (6) pressure detecting hole (7) clearance seals the hydrophobic pressure reduction well of (8) wall seat (9) (10) excacation face (11) injected hole.11 positions shown in Figure 1 can constitute four parts by its function: wherein one, pick builds and separate parallel construction; Two, hydrophobic step-down and Well-wall sealer; Three, well group reinforces; Four, borehole wall verticality is adjusted.Below, singly state respectively according to Fig. 1.
One, pick is built and is separated parallel construction:
This part is to realize the major part of simultaneous drifting job practices.No matter be excacation face (10), or nonintervention mutually can both be independently constructed in borehole wall casting place (1).Can both realize the execution conditions and the purpose of Focus, specialization and serialization.No matter be excacation face like this, or borehole wall casting, can realize the construction purpose that speed is fast, efficient is high, quality is good, safe and reliable.The successive excavation of excacation face (10), the borehole wall (4) are just constantly sunk, and just can fundamentally eliminate the problem that well group backbreaks and owes to dig, and since the borehole wall backbreak and owe to dig the drawback that is caused.The job practices of the excacation face shown in Fig. 1 (10) can adopt mining method, fluid jet, blasting procedure and mixing method.
The borehole wall of the present invention can adopt the borehole wall of conventional design, and the structure of the borehole wall can be an individual layer, also can be double-deck, can also be compound.Simultaneously, the flexible borehole wall of the AV that can also adopt routine to be difficult to adopt, shore, the ductile iron mound piece borehole wall, the prefabricated section borehole wall, prefabricated lining etc.The present invention's high performance concrete that the concrete of the borehole wall can also adopt routine to be difficult to adopt of casting is as the high-grade concrete of C70～C110.Like this, the intensity of the borehole wall can increase substantially, and the thickness of the borehole wall can attenuate, and the supporting capacity of the borehole wall under complex geological condition strengthened, and the scope of application is widened.
Pick is built and is separated parallel construction, not only be borehole wall casting improvement environment, and Focus, specialization and serialization have been realized for borehole wall casting, do not connect stubble casting for the borehole wall has, condition has been created in direct casting, the nothing that has realized borehole wall casting connects a batch formula, continuous casting type, makes borehole wall casting really realize " integrated ".Overcome traditional borehole wall and connect that stubble is many, of poor quality, intensity is low, insoluble drawback such as " leakage trickle ".Template (2) adopts conventional template, promptly can adopt the hydraulic climbing formula, also can adopt a kind of rhyme scheme in Chinese operas serving as the prelude to a complete score for voices formula.
Two, hydrophobic step-down and Well-wall sealer:
This part is for the flood that solves excacation face (10) endangers, and guarantees construction safety, and the construction environment of relatively doing is provided as much as possible.The quantity of hydrophobic pressure reduction well (9) as shown in Figure 1 and hole diameter can be determined according to hydrogeological well inspection water yield.Its design can be with reference to the mine drainage standard, and certain standby hydrophobic ability will be arranged, to guarantee hydrophobic antihypertensive effect and reliable degree.Water pressure behind the wall can be detected in pressure detecting hole (6), again can hydrophobic (but also slip casting in case of necessity).Borehole wall clearance (5), borehole wall clearance are that the borehole wall will have certain activity when adjusting for borehole wall verticality.For long term and the effect that guarantees clearance, the mud off that clearance domestic demand implantation concentration is bigger, and to observe mud slurry position height and mud dehydration situation at any time.The big I base area matter situation of borehole wall clearance is determined, is advisable with the degree of freedom that can guarantee the borehole wall.Clearance sealing (7), the clearance sealing can be adopted together or several flexible sealing as required.Wall seat (8), the outer diametric plane of wall seat (8) and baseplane and constituted the contact seal of wall seat with the contact surface of ground.The contact seal of wall seat and the flexible sealing of clearance and clearance mud have constituted the Well-wall sealer system, are used for shutoff borehole wall clearance water and seal in excacation face.Hydrophobic step-down measure and Well-wall sealer system have formed the safe-guard system of excacation face flood harm jointly.
Three, well group reinforces:
The injected hole (11) of wall seat (8) bottom divides two parts to form, and its middle and upper part injected hole is annotated sliding agent, and sliding agent generally adopts water, also can annotate lubrication oil, lubricating grease etc. as required.Can also inject reinforcement material, add well cementation group as reinforcement materials such as cement paste, chemical pulps.The bottom injected hole is the position slip casting at any time that can cave in and leak for well group, in order to add well cementation group, prevents that well from helping to cave in and leak.As positions such as loose soil layer, loose sand bed, grit layer and horizon ds, all sealings of grouting and reinforcing or slip casting at any time.More than constitute well group hardened system, be used to guarantee the long term and the effect of borehole wall clearance.
Four, borehole wall verticality is adjusted:
The adjustment of borehole wall verticality divides two parts composition up and down.Top is made up of borehole wall levelling device (3) shown in Figure 1, and borehole wall levelling device (3) generally adopts fluid pressure type, also can adopt mechanical type.Its quantity can adopt 4 groups, 6 groups, 8 groups etc., can decide as required.Generally speaking, should as much as possible the borehole wall be adjusted at borehole wall clearance center.
Bottom borehole wall verticality is adjusted, and mainly is to realize by the relative displacement of excavating construction technology adjustment wall seat (8).Because the existence of borehole wall clearance is arranged, the borehole wall has degree of freedom all the time, as long as adjust the relative position of wall seat, just can adjust the verticality of the borehole wall at any time like this.That is to say, in the process that borehole wall excavation sedimentation " is moved ", rectify a deviation at any time.Needing lay special stress on ground is the construction of excacation face (10), must be to guarantee that borehole wall verticality is the center, particularly when constructing huge thick expansive clay seam, must enter argillic horizon with the error of perpendicularity of minimum, after expansive clay is obturaged the gap expansion of borehole wall clearance (7), with injecting lubricating grease or lubrication oil in the borehole wall clearance (7), in case the borehole wall is embraced by huge thick expansive clay seam.And the function of borehole wall verticality is adjusted in assurance at any time.
Embodiments of the invention:
Embodiments of the invention are selected one conventional difficulty of construction is big, hole diameter is big, water yield is big and the vertical of huge thick expansive clay is arranged is that example is illustrated.This vertical design mine shaft depth 677.85m, the clean diameter 8m of pit shaft, the borehole wall are the double-deck interior steel plate bundle clothes steel concrete borehole wall, internal layer borehole wall 0.55m, outer shaft wall 0.45m.Double-layer wall of well end of a year or month degree of depth 601.44m is on the position, fine sand rock stratum shown in Cenozoic's hydrogeology column sketch 2.This section pit shaft overall height 602.94m (containing the overhead 1.50m of pit shaft).Enter the strong dilatancy argillic horizon when well depth enters 298.94m, thickness reaches 110.7m.According to borehole wall design, adopt the interior steel plate constraint steel concrete borehole wall to 601.44m from well depth 280m.Thickness of shaft wall adopts not reducing measure, to reduce the negative skin friction of pile of the borehole wall, increases the flexibility of the borehole wall.
The straight warp of wall seat can be identical with borehole wall diameter (containing clearance), also can be thinner than the borehole wall, general wall seat thickness get thickness of shaft wall 1/2～1/3 between be advisable, the thickness of wall seat is selected the main intensity of considering ground, is advisable can prevent that the borehole wall from drowning oneself.Present embodiment wall seat thickness is selected 1/3rd of thickness of shaft wall.
Construction installation summary: to change routine.
Three layers on shaft construction hanging scaffold, first floor are mainly installed the interim storage tank of big volume.The second layer is installed three tandem PM-300 type transh pumps.The 3rd layer of mounting center turned round grab loader, small-sized work plane slurry filling machine etc.Hanging scaffold is fixed on the borehole wall, and hanging scaffold safety wire rope is made steady rope, and the stable car traction is arranged.The borehole wall need suspend pipeline in midair four times, wherein, and discharge pipe line twice, an air line, jet pipeline (double do the interim slip casting in ground).These four times pipelines are permanent pipeline, install according to design standard, and will make this distribution of weight equilibrium of four times pipelines on the borehole wall as far as possible, are beneficial to the verticality adjustment of the borehole wall.
Sinking headframe adopts special-purpose sinking headframe.Borehole wall casting needs by establishing inside and outside operating platform, and interior operating platform is double-deck, and install in order to borehole wall pipeline and do the operation platform, the same moved further of inside and outside operating platform, and the stable car traction is arranged.The double pit shaft safety head of doing of interior operating desk.
Hoisting gear and air compressor machine all utilize ore deposit side's permanent device, and ventilation fan adopts 4-58-No-11-25D1 type speed governing ventilating fan.Measurement, illumination, communication signal are all with conventional identical.In sum, the present invention has saved equipment and materials such as a large amount of stable cars, wire rope.
Now singly state the pit shaft embodiment according to Cenozoic's hydrogeology column sketch 2: the embodiment design of this vertical is major-minor mixed construction method with fluid jet and blasting procedure with mining method.Begin to adopt mining method, when constructing the 4th aquifer, change the fluid jet construction over to, when constructing horizon d, adopt blasting procedure.
State hydrophobic step-down measure according to the draw water water yield list of experiment of Cenozoic hydrogeology column sketch 2 and well inspection below.735 cubic metres/hour of the well inspection flows in first aquifer, buried depth 33.85m establishes one on precipitation well pump 650QJ800-38/1 type, 800 cubic metres/hour of this pump discharges, lift 38m.762 cubic metres/hour of the well inspection flows in second aquifer, buried depth 89.54m establishes one on precipitation well pump 650QJ800-114/3 type, 800 cubic metres/hour of this pump discharges, lift 114.00m.410 cubic metres/hour of the 3rd aquifer well inspection flows, buried depth 293.19m establishes one on precipitation well pump 350QJ500-330/11 type, 500 cubic metres/hour of this pump discharges, lift 330.00m.210 cubic metres/hour of the 4th aquifer well inspection flows, buried depth 488.60m according to the constructure scheme design, adopts the fluid jet construction.More than constitute hydrophobic depressurizing system.
The first and second precipitation wells can be produced and the living water use water supply well for ore deposit side.In order to guarantee to excavate construction safety, adopt hydrophobic step-down earlier, construction is excavated in the back, visits afterwards earlier and digs the working measure that digs while visiting.
Hydrophobic depressurizing system adopts outer (hydrophobic step-down) unified plan of (vertical) well in the well, unified design.For example; The hydrophobic step-down measure in first to the 3rd aquifer is based on the precipitation well pump, and the transh pump in the vertical is as standby draining safe-guard system.When shaft construction entered the 4th aquifer, when the excavation construction transferred the fluid jet construction to, another discharge pipe line in the well was standby drainage system.The bedrock weathering zone water content is very little, only 30 cubic metres/hour, still uses well internal drainage system.
Hydrophobic depressurizing system in sum is the unified outward design of well in the well, cooperatively interacts hight coordinate.Have simple, the safe and reliable facilities such as water station that need not change of system, just can solve the shaft construction of water yield up to 2147 cubic metres/hour.
When constructing the 4th when moisture, begin to prepare the preparation of fluid jet construction.It wherein mainly is the standby drainage system when a standby slush pump of DN360-75X7 type is installed on another permanent discharge pipe line as the construction of employing fluid jet.When doing construction conversion preparation, find that the 4th aquifer water yield reduces in a large number, think that by analysis water yield was reduced to normal phenomenon when four aquifers were examined than well, because well verify footpath is little, detect time of pumping limited (general 8 hours), for the fabulous middle husky aquifer of this water conservancy flox condition, error is very big, though four aquifer flox conditions are fabulous, but the of no help source of giving belongs to Static Water.Under the situation of big flow draining, water level descends rapidly, and the water yield reduces, and the fluid jet construction of plan can not have been implemented.Because the drainability of transh pump is 300～350 cubic metres/hour, the down-hole water yield is too little, must could satisfy the needs of PM-300 type transh pump running at the water of 300 cubic metres/hour of aboveground introductions, is inappropriate from considering economically like this.Thereby continue to adopt mining method to construct.Because the method for separating parallel construction is built in pick provided by the invention, need not to worry the problem of the borehole wall " dawdle ", there is not any chance of " empty group " and " group of collapsing " yet.So, under the conventional big situation of water yield ratio, still can construct as usual.Like this, pass the 4th aquifer soon, normal construction is to 601.44m pit shaft design end of a year or month place.The borehole wall is taken root after the encapsulation process, and the shaft construction of Cenozoic's alluviation interval just is through with.Design the 677.85m of place of the last end of a year or month according to this shaft of vertical well, also have the rock section pit shaft of 76.41m not construct, this rock section pit shaft adopts the common law construction by design, here just no longer endures and has stated.
Adopt the present invention to dig the borehole wall that block separates, parallel job practices is cast, must must guarantee the verticality of borehole wall body constantly from borehole wall casting.Also to detect the verticality of the borehole wall in well at any time simultaneously by facility and computer networkings such as four post vertical lines or laser orientation instruments.To the verticality of the borehole wall in well and the verticality of borehole wall casting, realize that computerization, intellectuality, digitized " round-the-clock " detect, the borehole wall error of perpendicularity shows with numeral at any time, error surpasses operating regulation and requires in time to report to the police, reach the purpose of controlling borehole wall verticality at any time, meet the design standard requirement constantly with the verticality that guarantees the borehole wall.
The vertical cost of employing embodiment of the present invention construction is compared with the cost of traditional construction freezing method vertical, have the remarkable economical advantage, with the vertical of the foregoing description, the clean diameter 8m of pit shaft, the vertical of the nearly 700m of well depth is an example, about 1.9 hundred million yuan of the cost of employing construction freezing method.Adopt about 1.4 hundred million yuan of constructure scheme construction cost of the present invention.If several pit shafts in an ore deposit adopt embodiment of the present invention simultaneously, its cost can also hang down.And construction organization of the present invention is simple, execution conditions good, become the well quality good, safe and reliable.Therefore, the present invention has huge economic benefit and develop and spread is worth, and is a major transformation on the shaft sinking development history.
The drawing explanation of accompanying drawing 1: Fig. 1 is that pick is built separately, the system schematic of parallel construction, wherein (1) borehole wall casting place, and the template of (2) borehole wall casting, (10) vertical excavates the construction working face, has realized that thus pick is built separately, the condition and the purpose of parallel construction.Hydrophobic pressure reduction well (9), pressure detecting hole (6) and clearance sealing (7) and wall seat (8) have constituted vertical and have excavated the safe-guard system of construction working face (10) flood harm.
The drawing explanation of accompanying drawing 2: Fig. 2 is Cenozoic's hydrogeology column sketch, (being the column sketch of well verify), its buried depth is a benchmark with the positive negative zero of ground line design elevation, the base plate line that the actual buried depth data of hydrogeology block diagram are each aquifer and the base plate line of master stratum, unit is m.
Claims (5)
1, a kind of job practices that is used for the simultaneous drifting of vertical and high inclination-angle inclined shaft.It is characterized in that this method employing pick is built separately, parallel construction; And formed by hydrophobic depressurizing system, Well-wall sealer system, well group's hardened system and the vertical Adjustment System of the borehole wall.
2, job practices as claimed in claim 1 is characterized in that this method adopts mining method, fluid jet, blasting procedure and mixing method.
3, block wall construction method as claimed in claim 1 is characterized in that this block wall construction method adopts continuous casting type, do not have batch formula that connects.
4, hydrophobic depressurizing system as claimed in claim 1 is characterized in that this hydrophobic depressurizing system adopts the unified formula of well in the well outward.
5, Well-wall sealer as claimed in claim 1 system is characterized in that this Well-wall sealer system has the mud of wall seat (8), wall seat injected hole (11), clearance flexible sealing (7) and borehole wall clearance (5) to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101366813A CN101598022A (en) | 2009-05-13 | 2009-05-13 | The job practices of vertical simultaneous drifting |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2009101366813A CN101598022A (en) | 2009-05-13 | 2009-05-13 | The job practices of vertical simultaneous drifting |
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| CN101598022A true CN101598022A (en) | 2009-12-09 |
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| CNA2009101366813A Pending CN101598022A (en) | 2009-05-13 | 2009-05-13 | The job practices of vertical simultaneous drifting |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821521A (en) * | 2014-02-25 | 2014-05-28 | 冯莉莉 | Manufacturing method of rotary type guiding frame |
| CN103821522A (en) * | 2014-02-25 | 2014-05-28 | 冯莉莉 | Rotary guide frame |
| CN104533425A (en) * | 2015-01-04 | 2015-04-22 | 中煤能源黑龙江煤化工有限公司 | Vertical shaft overall pouring section walling crib and vertical shaft overall pouring section walling crib construction method |
| CN104763431A (en) * | 2015-01-22 | 2015-07-08 | 隋忠良 | Novel shaft construction method |
| CN104895570A (en) * | 2015-06-03 | 2015-09-09 | 福建工程学院 | Reinforced excavation method for shaft of subway of weak water formation |
| CN109026010A (en) * | 2018-08-13 | 2018-12-18 | 中煤能源研究院有限责任公司 | A kind of mine seepage well slip casting type sinking shaft construction method |
| CN109667586A (en) * | 2019-01-07 | 2019-04-23 | 中国矿业大学 | A kind of double-layer wall of well grouting system and grouting method |
| CN112282764A (en) * | 2020-11-04 | 2021-01-29 | 西安市恒兴市政工程公司 | Rectangular circulating support working well and construction method thereof |
| CN112647952A (en) * | 2020-12-25 | 2021-04-13 | 安徽砼宇特构科技有限公司 | Vertical shaft wall structure with water-swelling glue |
| CN113847036A (en) * | 2021-10-25 | 2021-12-28 | 安徽理工大学 | Double-wall seat structure for deep drilling shaft after well wall bottom breaking and construction method |
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2009
- 2009-05-13 CN CNA2009101366813A patent/CN101598022A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821521B (en) * | 2014-02-25 | 2015-11-25 | 冯莉莉 | The manufacture method of rotary leading truck |
| CN103821522A (en) * | 2014-02-25 | 2014-05-28 | 冯莉莉 | Rotary guide frame |
| CN103821521A (en) * | 2014-02-25 | 2014-05-28 | 冯莉莉 | Manufacturing method of rotary type guiding frame |
| CN104533425A (en) * | 2015-01-04 | 2015-04-22 | 中煤能源黑龙江煤化工有限公司 | Vertical shaft overall pouring section walling crib and vertical shaft overall pouring section walling crib construction method |
| CN104763431A (en) * | 2015-01-22 | 2015-07-08 | 隋忠良 | Novel shaft construction method |
| CN104895570B (en) * | 2015-06-03 | 2017-04-05 | 福建工程学院 | Weak water rich strata subway vertical shaft reinforces excavation method |
| CN104895570A (en) * | 2015-06-03 | 2015-09-09 | 福建工程学院 | Reinforced excavation method for shaft of subway of weak water formation |
| CN109026010A (en) * | 2018-08-13 | 2018-12-18 | 中煤能源研究院有限责任公司 | A kind of mine seepage well slip casting type sinking shaft construction method |
| CN109667586A (en) * | 2019-01-07 | 2019-04-23 | 中国矿业大学 | A kind of double-layer wall of well grouting system and grouting method |
| CN109667586B (en) * | 2019-01-07 | 2020-07-28 | 中国矿业大学 | Grouting method of double-layer well wall grouting system |
| CN112282764A (en) * | 2020-11-04 | 2021-01-29 | 西安市恒兴市政工程公司 | Rectangular circulating support working well and construction method thereof |
| CN112647952A (en) * | 2020-12-25 | 2021-04-13 | 安徽砼宇特构科技有限公司 | Vertical shaft wall structure with water-swelling glue |
| CN113847036A (en) * | 2021-10-25 | 2021-12-28 | 安徽理工大学 | Double-wall seat structure for deep drilling shaft after well wall bottom breaking and construction method |
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Address after: 102200, Beijing, Changping District, Green Town, Guo Tong homes, 18, unit 1, 501 Applicant after: Sui Zhongliang Address before: 102200, Beijing, Changping District Green Town 32-2-402 Applicant before: Sui Zhongliang |
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Application publication date: 20091209 |