CN102493809A - Comprehensive shaft sinking method of positive and raising boring for vertical shaft - Google Patents
Comprehensive shaft sinking method of positive and raising boring for vertical shaft Download PDFInfo
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- CN102493809A CN102493809A CN2011104125464A CN201110412546A CN102493809A CN 102493809 A CN102493809 A CN 102493809A CN 2011104125464 A CN2011104125464 A CN 2011104125464A CN 201110412546 A CN201110412546 A CN 201110412546A CN 102493809 A CN102493809 A CN 102493809A
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Abstract
The invention discloses a comprehensive shaft sinking method of positive and raising boring for a vertical shaft, which comprises the following steps: drilling into a bedrock section by utilizing a vertical shaft drill machine, forming surface soil section well holes, discharging rock-debris-containing slurry produced during the well drilling process to the ground at high speed through air lifting; prefabricating sections of well walls on the ground; adding counter weight water in the drill well, slowly sinking the sections of well walls to the surface soil section well holes by utilizing buoyancy force of slurry to the well walls in the drill well, and sequentially welding the well walls to the surface soil section well holes; filling grout between the well walls and the rock sides on the outer sides of the well walls, filling cement paste in the lowest layer, then alternatively filling upwards the cement paste and rubbles layer by layer, and obtaining a surface soil section drill well; selecting a suitable raise-bore drilling machine according to practical requirements of the diameter and depth of a bed rock section shaft; lowering the raise-bore drilling machine and fixing the raise-bore drilling machine at the bottom of the surface soil section drill well; inversely expanding the holes by utilizing the raise-bore drilling machine to form bing-holes; and the diameter of the bing-holes is enlarged to preset shaft diameter. The comprehensive shaft sinking method of the positive and raising boring for the vertical shaft greatly improves well forming speed of shaft sinking and is safe, reliable and low in construction cost.
Description
Technical field
The present invention relates to the drilling well field, relate in particular to a kind of vertical shaft forward, the comprehensive sinking method of anti-well.
Background technology
The vertical shaft for mine sinking shaft is a kind of Fully-mechanized comprehensive sinking shaft technology, and the staff realizes digging a well and do not go into the well in ground handling.Construction technology comprises 1) the stratum broken rock and soil, carry, carry and separate; 2) expand well step by step; 3) well group temporary lining; 4) permanent support comprises the borehole wall manufacture, suspend sinking, support with backfilling, slip casting etc.The major diameter Rotary table for drilling machine that is utilized in ground configuration drives drilling rod, and drilling rod drives the drill bit rotation, and the hobboing cutter on the drill bit is realized rotation and revolution, and the stratum is produced impact, extruding, scraping comprehensive function, and layer is broken on the spot; After boring reaches the degree of depth; Creep into and revise well and reach hole deviation partially through repeatedly expanding well again; When reaching intended diameter again with the steel concrete borehole wall prefabricated on the ground or steel plate concrete composite shaft lining; Connect by joint with the steel flange dish, in mud-filled wellhole, suspension sinks down into the shaft bottom and makes permanent support.At last in borehole wall periphery with cement paste or other material, the filling well cementation of mud is replaced in segmentation according to formation condition.Existing vertical shaft for mine sinking shaft technology is for Drilling table soil section, and speed of application is very fast, and construction cost is lower, and still, for the rock section construction, have many problems: the hold facility time is long, and engineering cost is high; Work efficiency is low, becomes well speed slow, can not satisfy quick shaft building needs.
Summary of the invention
The objective of the invention is the problems referred to above of existing to existing technology, a kind of vertical shaft forward, the comprehensive sinking method of anti-well be provided, improve the one-tenth well speed of sinking shaft greatly, safety, reliable, construction cost is low.
To achieve these goals, the present invention adopts following technical scheme:
A kind of vertical shaft forward, the comprehensive sinking method of anti-well may further comprise the steps:
Step 1, utilize shaft drilling machine to creep into, form table soil section wellhole to rock section, the broken rock of drill bit rotation of shaft drilling machine, making catalase is landwaste;
Step 2, the airduct that passes through in the drilling rod of shaft drilling machine are imported compressed air, rise liquid through calming the anger the mud that contains landwaste that produces in the drilling process is drained into ground at a high speed;
Step 3, the prefabricated borehole wall that respectively saves on the ground;
Step 4, in drilling well, add ballast water, utilize mud in the drilling well slowly to sink in the table soil section wellhole each joint borehole wall and welding successively the buoyancy of the borehole wall;
Step 5, between the rock group in the borehole wall and the borehole wall outside, fill slip casting, orlop adopts cement grout to fill, and upwards utilizes cement paste and rubble alternately to fill then step by step, obtains showing soil section drilling well;
Step 6, select suitable raise boring machine according to the diameter and the degree of depth of the needs rock section pit shaft of reality;
Step 7, raise boring machine transferred and is fixed to the bottom of table soil section drilling well;
Step 8, utilize the reverse reaming of raise boring machine, form and slip the cash hole;
Step 9, the big extremely predetermined mineshaft diameter of brush.
Carry out the process of drilling well in the aforesaid step 1 and utilize the ultrasonic wave logging instrument that the verticality of drilling well is monitored, when the perpendicularity deviation of the drilling well of monitoring surpasses predetermined value, then to the shaft drilling machine processing of rectifying a deviation.
The drill bit of aforesaid shaft drilling machine is equipped with insert cutter or middle tooth cutter.
The rotating speed of aforesaid shaft drilling machine is 0-8r/min, the pressure of the drill bit of shaft drilling machine less than drill bit in mud weight 60%.
The aforesaid borehole wall is the steel concrete borehole wall or the steel plate borehole wall.
The aperture in aforesaid slide cash hole is 1.2-2.0m.
The present invention compared with prior art has following beneficial effect:
1, safely, reliably, construction cost is low;
2, owing to adopt said method; With the rock section of drilling machine construction difficulty, accomplish construction by raise boring machine, originally the drilling machine construction rock section becomes well speed 10～15m/ month; Change raise boring machine into and combine the big comprehensive one-tenth well speed of brush can reach 15～30m/ month, become well speed to improve about 50%;
3, adopt raise boring machine construction rock section, no mud emission reduces a large amount of mud storage space areas, has reduced the pollution to environment.
Description of drawings
Fig. 1 is that native segment structure sketch map is shown in the shaft drilling machine construction.
Fig. 2 is the structural representation that the borehole wall sinks.
Fig. 3 is the grouting behind shaft or drift lining process schematic representation.
Fig. 4 is the raise boring machine rock section sketch map of in pit shaft, constructing.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is done further to describe in detail; Wherein, the long section borehole wall during the big hook of 1-pulley, 2-derrick, 3-drilling rod, 4-erecting by overhang, 5-fore shaft, 6-sink, 7-have sunk to the end borehole wall, 8-hole wall, 9-slip casting flexible pipe, 10-stop valve, 11-pressure meter, 12-sinuous coil, 13-closed joint, 14-slip casting threeway, the active hook of 15-Grouting Pipe, the seamless Grouting Pipe of 16-, the anti-wire connection head of 17-, 18-non retern valve, the outer siphunculus of 19-, 20-wall place isocon.
Embodiment:
Like Fig. 1, shown in Figure 2, a kind of vertical shaft forward, the comprehensive sinking method of anti-well may further comprise the steps:
Step 1, utilize shaft drilling machine to creep into, form table soil section wellhole, the broken rock of drill bit rotation of shaft drilling machine to rock section; Making catalase is landwaste; Wherein the drill bit of shaft drilling machine is equipped with insert cutter or middle tooth cutter, and the rotating speed of shaft drilling machine is 0-8r/min, the pressure of the drill bit of shaft drilling machine less than drill bit in mud weight 60%; When handing-over band and weathered zone crept on each stratum, the pressure of the drill suitably reduced 5-10T again on original basis;
Step 2, the airduct that passes through in the drilling rod of shaft drilling machine are imported compressed air, rise liquid through calming the anger the mud that contains landwaste that produces in the drilling process is drained into ground at a high speed;
Step 3, the prefabricated borehole wall that respectively saves on the ground, the borehole wall is the steel concrete borehole wall or the steel plate borehole wall;
Step 4, in drilling well, add ballast water, utilize mud in the drilling well slowly to sink in the table soil section wellhole each joint borehole wall and welding successively the buoyancy of the borehole wall;
Step 5, between the rock group in the borehole wall and the borehole wall outside, fill slip casting, orlop adopts cement grout to fill, and upwards utilizes cement paste and rubble alternately to fill then step by step, obtains showing soil section drilling well;
Step 6, select suitable raise boring machine according to the diameter and the degree of depth of the needs rock section pit shaft of reality;
Step 7, raise boring machine transferred and is fixed to the bottom of table soil section drilling well;
Step 8, utilize the reverse reaming of raise boring machine, form and slip the cash hole, slipping the aperture in cash hole is 1.2-2.0m;
Step 9, the big extremely predetermined mineshaft diameter of brush.
Carry out the process of drilling well in the step 1 and utilize the ultrasonic wave logging instrument that the verticality of drilling well is monitored, when the perpendicularity deviation of the drilling well of monitoring surpasses predetermined value, then to the shaft drilling machine processing of rectifying a deviation.
During embodiment of the present invention, the main technique technical requirements is following:
1) control of pit shaft deflection: the drill bit of shaft drilling machine all guarantees to aim at drill center under its free state before creeping into, and its Deviation Control is in 5mm; The employed the pressure of the drill of borings at different levels all less than drill bit in mud weight 60%; When handing-over band and weathered zone crept on each stratum, the pressure of the drill suitably reduced 5-10T again on original basis; Adopting SKD-1 type ultrasonic wave logging instrument, the verticality and the hole diameter of borings at different levels are measured timely, so that in time take satisfactory after correcting, generally is will carry creeping into capable cleaning bottom of hole, reaches requirement up to deviation proportion and hole diameter.
2) well group is stable: strict control drilling parameter, the pressure of the drill less than drill bit in mud weight 60%, general rotating speed 5r/min; Moment of torsion is the 40%-60% of rig peak torque, and the general 3r/min of reaming, moment of torsion are 80% of rig maximum capacity; And take all factors into consideration the mud property parameter, 1, suppress to make slurry: adopt the high molecular polymer chemical agent, utilize its special construction preferentially to occupy the adsorbable zone on landwaste surface; Form topping on its surface, stop effectively with mud in the contacting of Free water, the inhibition slime water is to the aquation of drilling cuttings; Broken landwaste is kept intact basically, in creeping into, make slurry fully thereby suppress soil block.2, reduce sand factor: utilize sedimentation basin to lean on the bigger landwaste of action of gravity sedimentation diameter; Discharge less landwaste with cyclone again; And then with more tiny landwaste of sodium phosphate trimer flocculating setting and flour sand.3, reduce fluid loss: if mud viscosity surpasses 24s, first thin up (fluid loss may raise, but the mud skin forms, can not cause too big harm) to 24s adds CMC again, lowers fluid loss.4, mud parameter is controlled principle: to control fluid loss, to relax density value is means, and to form the head of liquid of the inboard head of liquid of hole wall greater than the hole wall outside, the assurance well is helped stable.
3) processing of balled bit: take various several kinds of measures, as reducing the mud viscosity, control fluid loss, strict control drilling parameter is offered side draught and is closed up, and strengthens the mud uptake.
4) it is the key of construction technology that the control of anti-well construction guide hole deflection, guide hole are crept into, and mainly is control guide hole deflection.The principal element that influences borehole accuracy has: drilling tool structure and layout, the selection of anti-well drilling parameter, geological conditions and main technical level of operators and experience.If guide hole exceeds certain limit, will the follow-up big construction of reaming brush be impacted.
This technology is owing to adopt the shaft drilling machine forward and the reverse comprehensive sinking shaft technology of raise boring machine; Rock section with the drilling machine construction difficulty; Accomplish construction by raise boring machine; Originally the drilling machine construction rock section becomes well speed 10～20m/ month, changes raise boring machine into and combines the big comprehensive one-tenth well speed of brush can reach 15～30m/ month, becomes well speed to improve about 50%; Because adopt raise boring machine construction rock section, no mud emission reduces a large amount of mud storage space areas, has reduced the pollution to environment.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (6)
1. a vertical shaft forward, the comprehensive sinking method of anti-well is characterized in that, may further comprise the steps:
Step 1, utilize shaft drilling machine to creep into, form table soil section wellhole to rock section, the broken rock of drill bit rotation of shaft drilling machine, making catalase is landwaste;
Step 2, the airduct that passes through in the drilling rod of shaft drilling machine are imported compressed air, rise liquid through calming the anger the mud that contains landwaste that produces in the drilling process is drained into ground at a high speed;
Step 3, the prefabricated borehole wall that respectively saves on the ground;
Step 4, in drilling well, add ballast water, utilize mud in the drilling well slowly to sink in the table soil section wellhole each joint borehole wall and welding successively the buoyancy of the borehole wall;
Step 5, between the rock group in the borehole wall and the borehole wall outside, fill slip casting, orlop adopts cement grout to fill, and upwards utilizes cement paste and rubble alternately to fill then step by step, obtains showing soil section drilling well;
Step 6, select suitable raise boring machine according to the diameter and the degree of depth of the needs rock section pit shaft of reality;
Step 7, raise boring machine transferred and is fixed to the bottom of table soil section drilling well;
Step 8, utilize the reverse reaming of raise boring machine, form and slip the cash hole;
Step 9, the big extremely predetermined mineshaft diameter of brush.
2. a kind of vertical shaft forward according to claim 1, the comprehensive sinking method of anti-well; It is characterized in that; Carrying out the process of drilling well in the described step 1 utilizes the ultrasonic wave logging instrument that the verticality of drilling well is monitored; When the perpendicularity deviation of the drilling well of monitoring surpasses predetermined value, then to the shaft drilling machine processing of rectifying a deviation.
3. a kind of vertical shaft forward according to claim 1, the comprehensive sinking method of anti-well is characterized in that the drill bit of described shaft drilling machine is equipped with insert cutter or middle tooth cutter.
4. a kind of vertical shaft forward according to claim 1, the comprehensive sinking method of anti-well is characterized in that the rotating speed of described shaft drilling machine is 0-8r/min, the pressure of the drill bit of shaft drilling machine less than drill bit in mud weight 60%.
5. a kind of vertical shaft forward according to claim 1, the comprehensive sinking method of anti-well is characterized in that, the described borehole wall is the steel concrete borehole wall or the steel plate borehole wall.
6. a kind of vertical shaft forward according to claim 1, the comprehensive sinking method of anti-well is characterized in that, the aperture in described slide cash hole is 1.2-2.0m.
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| CN2011104125464A CN102493809A (en) | 2011-12-12 | 2011-12-12 | Comprehensive shaft sinking method of positive and raising boring for vertical shaft |
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| CN2011104125464A CN102493809A (en) | 2011-12-12 | 2011-12-12 | Comprehensive shaft sinking method of positive and raising boring for vertical shaft |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103029222A (en) * | 2012-12-04 | 2013-04-10 | 张古权 | Rock slotter |
| CN103133004A (en) * | 2013-01-25 | 2013-06-05 | 北京中煤矿山工程有限公司 | Technological process of ground prefabrication and installation of inner shaft wall of freezing shaft |
| CN103256004A (en) * | 2013-05-15 | 2013-08-21 | 河北建设勘察研究院有限公司 | Downward driving slurry-free bed rock mechanical drilling construction method |
| CN103422862A (en) * | 2013-07-26 | 2013-12-04 | 王绍华 | Ultra-large hole-diameter drilling shaft drilling method |
| CN103835661A (en) * | 2013-11-06 | 2014-06-04 | 北京中煤矿山工程有限公司 | Local excavation pre-supporting raise boring technology |
| CN103850684A (en) * | 2013-11-22 | 2014-06-11 | 北京中煤矿山工程有限公司 | Sinking technology for expanding pilot well drilled by raise-boring machine, by using vertical well heading machine |
| CN104110261A (en) * | 2014-06-13 | 2014-10-22 | 中国水利水电第十二工程局有限公司 | Construction method for expanding excavation of shaft at one time in reverse mode |
| CN104389607A (en) * | 2014-10-22 | 2015-03-04 | 中铁工程装备集团有限公司 | Novel drilling and blasting method vertical shaft drilling machine |
| CN104632255A (en) * | 2015-01-11 | 2015-05-20 | 陕西彬长小庄矿业有限公司 | Large-section rapid construction method for shaft bottom coal bunker |
| CN104929514A (en) * | 2015-05-29 | 2015-09-23 | 内蒙古上海庙矿业有限责任公司 | Raise-boring machine construction method |
| CN105134069A (en) * | 2015-08-26 | 2015-12-09 | 北京中煤矿山工程有限公司 | Technology for constructing gas vertical shaft penetrating strong water-rich rock stratum through anti-well method |
| CN106522833A (en) * | 2016-12-30 | 2017-03-22 | 张家口宣化华泰矿冶机械有限公司 | Vertical-shaft drilling machine capable of drilling blast hole and central release hole simultaneously |
| CN110107301A (en) * | 2019-04-09 | 2019-08-09 | 北京中煤矿山工程有限公司 | A kind of mechanical rock breaking sinking method of positive-reversed-positive three-level drilling |
| CN110700838A (en) * | 2019-11-28 | 2020-01-17 | 中国铁建重工集团股份有限公司 | Vertical shaft construction method and system from bottom to top |
| CN111485886A (en) * | 2020-04-17 | 2020-08-04 | 中国矿业大学 | Drill bit supporting device for drilling and digging from bottom to top |
| CN111894596A (en) * | 2020-07-27 | 2020-11-06 | 广西路桥工程集团有限公司 | Vertical shaft raise construction method |
| CN112360468A (en) * | 2020-11-25 | 2021-02-12 | 浙江华东建设工程有限公司 | Excavation supporting method for vertical shaft slag sliding well |
| CN112554884A (en) * | 2020-11-20 | 2021-03-26 | 北京市政路桥股份有限公司 | Excavation method of tunnel vertical shaft |
| CN113374481A (en) * | 2021-06-09 | 2021-09-10 | 中交第二公路勘察设计研究院有限公司 | Well drilling method well sinking process with drilling before and after |
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| CN101858218A (en) * | 2010-05-14 | 2010-10-13 | 淮北矿业（集团）有限责任公司 | Shaft sinking process for expansion well completion of mine vertical shaft with boring method |
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Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103029222B (en) * | 2012-12-04 | 2015-04-01 | 张古权 | Rock slotter |
| CN103029222A (en) * | 2012-12-04 | 2013-04-10 | 张古权 | Rock slotter |
| CN103133004A (en) * | 2013-01-25 | 2013-06-05 | 北京中煤矿山工程有限公司 | Technological process of ground prefabrication and installation of inner shaft wall of freezing shaft |
| CN103256004A (en) * | 2013-05-15 | 2013-08-21 | 河北建设勘察研究院有限公司 | Downward driving slurry-free bed rock mechanical drilling construction method |
| CN103422862A (en) * | 2013-07-26 | 2013-12-04 | 王绍华 | Ultra-large hole-diameter drilling shaft drilling method |
| CN103422862B (en) * | 2013-07-26 | 2015-08-12 | 王绍华 | Large aperture boring Drilling vertical shaft method |
| CN103835661B (en) * | 2013-11-06 | 2016-03-16 | 北京中煤矿山工程有限公司 | A kind of local excavation pre support mine shaft rising boring technique |
| CN103835661A (en) * | 2013-11-06 | 2014-06-04 | 北京中煤矿山工程有限公司 | Local excavation pre-supporting raise boring technology |
| CN103850684A (en) * | 2013-11-22 | 2014-06-11 | 北京中煤矿山工程有限公司 | Sinking technology for expanding pilot well drilled by raise-boring machine, by using vertical well heading machine |
| CN103850684B (en) * | 2013-11-22 | 2017-04-05 | 北京中煤矿山工程有限公司 | A kind of shaft excavation machine expands the sinking shaft technique of anti-well rig pilot shaft |
| CN104110261A (en) * | 2014-06-13 | 2014-10-22 | 中国水利水电第十二工程局有限公司 | Construction method for expanding excavation of shaft at one time in reverse mode |
| CN104389607B (en) * | 2014-10-22 | 2016-06-08 | 中铁工程装备集团有限公司 | Novel drilling and blasting method shaft drilling machine |
| CN104389607A (en) * | 2014-10-22 | 2015-03-04 | 中铁工程装备集团有限公司 | Novel drilling and blasting method vertical shaft drilling machine |
| CN104632255A (en) * | 2015-01-11 | 2015-05-20 | 陕西彬长小庄矿业有限公司 | Large-section rapid construction method for shaft bottom coal bunker |
| CN104929514A (en) * | 2015-05-29 | 2015-09-23 | 内蒙古上海庙矿业有限责任公司 | Raise-boring machine construction method |
| CN104929514B (en) * | 2015-05-29 | 2017-04-12 | 内蒙古上海庙矿业有限责任公司 | Raise-boring machine construction method |
| CN105134069A (en) * | 2015-08-26 | 2015-12-09 | 北京中煤矿山工程有限公司 | Technology for constructing gas vertical shaft penetrating strong water-rich rock stratum through anti-well method |
| CN105134069B (en) * | 2015-08-26 | 2018-02-27 | 北京中煤矿山工程有限公司 | One kind is related to gas vertical and passes through the anti-well method construction technology in strong rich water rock stratum |
| CN106522833A (en) * | 2016-12-30 | 2017-03-22 | 张家口宣化华泰矿冶机械有限公司 | Vertical-shaft drilling machine capable of drilling blast hole and central release hole simultaneously |
| CN110107301A (en) * | 2019-04-09 | 2019-08-09 | 北京中煤矿山工程有限公司 | A kind of mechanical rock breaking sinking method of positive-reversed-positive three-level drilling |
| CN110700838A (en) * | 2019-11-28 | 2020-01-17 | 中国铁建重工集团股份有限公司 | Vertical shaft construction method and system from bottom to top |
| CN111485886A (en) * | 2020-04-17 | 2020-08-04 | 中国矿业大学 | Drill bit supporting device for drilling and digging from bottom to top |
| CN111485886B (en) * | 2020-04-17 | 2021-09-07 | 中国矿业大学 | Drill bit supporting device for drilling and digging from bottom to top |
| CN111894596A (en) * | 2020-07-27 | 2020-11-06 | 广西路桥工程集团有限公司 | Vertical shaft raise construction method |
| CN112554884A (en) * | 2020-11-20 | 2021-03-26 | 北京市政路桥股份有限公司 | Excavation method of tunnel vertical shaft |
| CN112360468A (en) * | 2020-11-25 | 2021-02-12 | 浙江华东建设工程有限公司 | Excavation supporting method for vertical shaft slag sliding well |
| CN112360468B (en) * | 2020-11-25 | 2022-04-12 | 浙江华东建设工程有限公司 | Excavation supporting method for vertical shaft slag sliding well |
| CN113374481A (en) * | 2021-06-09 | 2021-09-10 | 中交第二公路勘察设计研究院有限公司 | Well drilling method well sinking process with drilling before and after |
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Application publication date: 20120613 |