CN104913696A - Side slope excavation smooth-surface blasting-method construction method - Google Patents
Side slope excavation smooth-surface blasting-method construction method Download PDFInfo
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- CN104913696A CN104913696A CN201410095359.1A CN201410095359A CN104913696A CN 104913696 A CN104913696 A CN 104913696A CN 201410095359 A CN201410095359 A CN 201410095359A CN 104913696 A CN104913696 A CN 104913696A
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Abstract
The invention discloses a side slope excavation smooth-surface blasting-method construction method. The side slope excavation smooth-surface blasting-method construction method comprises the steps of 1 researching a design drawing and geological information and cleaning a slope crest and the way leading to a mountain, 2 performing surveying and setting out, 3 designing smooth-surface blasting parameters, 4 performing setting out and hole arrangement, 5 establishing a drill machine platform and positioning the drill machine platform, 6 drilling holes, cleaning the holes and checking the holes, 7 performing cartridge processing and charging and blocking the top ends of the holes, 8 connecting a detonation network, 9 performing blasting and 10 performing checking after blasting. The side slope excavation smooth-surface blasting-method construction method is short in construction period, low in cost, high in efficiency, small in working amount, good in forming effect, high in safety and simple in construction.
Description
Technical field
The present invention relates to a kind of blasting method, especially relate to a kind of slope excavating photoface exploision method construction method.
Background technology
There is following defect in existing slope blasting method:
A. machinery carries out slope excavating, cannot carry out high slope finishing, long in time limit, efficiency is low, economic benefit is low, side slope Forming Quality is poor;
B. conventional blast method excavation, large to reservation Rock Damage, cause out break, destroy slope stability;
C. manually carry out slope treatment, operation flexibility is large, consumes a large amount of manpower, long in time limit, efficiency is low, economic benefit is low.
Summary of the invention
The present invention in order to overcome above-mentioned deficiency, provide a kind of drop into little, the duration is short, side slope good forming effect, and the slope excavating photoface exploision method construction method that cost is low.
Technical scheme of the present invention is as follows:
A kind of slope excavating photoface exploision method construction method, comprising:
(1) research and design drawing and geological information, and to the step that top, slope and road of going up a hill are cleared up;
(2) step of surveying setting-out;
(3) step of Smooth Blasting Prameter Design;
(4) step in setting-out cloth hole;
(5) drilling machine platform is built, and by the step of drilling machine platform location;
(6) boring, clearly hole, the step of verifying;
(7) powder stick processing and powder charge, plugging hole top step;
(8) step of initiation net connection;
(9) step of explosion;
(10) step checked after explosion.
In the present invention, step (2) for push up accurate setting-out on the slope cleared up, and mark slope top excavate outline line, ensure the accurate of next step cloth hole.
The foundation that Parameters of Smooth Wall Blasting described in step (3) is selected is:
In formula:
During the deep hole blasting of D-aperture, highway, railway, water conservancy get D=80 ~ 100mm, and D=115 ~ 250mm is got in mine; During shallow blasting, get D=42 ~ 50mm;
H≤15m during H-shoulder height deep hole, 1.5m≤H≤5m during shallow bore hole;
α-side slope bore angle;
K-design factor, gets K=15 ~ 25, and soft rock takes large values, and hard rock gets the small value;
M-big gun hole close coefficient, gets m=0.6 ~ 0.8
K
light-photoface exploision unit consumption (see table 1), g/m
3.
The main blast hole that light blast hole and two rows are interlocked will be arranged in step (4), the pitch-row of light blast hole is derived as a according to step (3), the pitch-row of main blast hole is greater than the pitch-row of light blast hole, and the hole depth of main blast hole and light blast hole and single hole explosive payload are all drawn by step (3).
In step (6), the angle of boring is equal with slope angle, adopts geology compass machine to carry out check drilling rod direction and angle during boring.
In step (7), powder stick is that interval is tied up on primacord, and primacord is tied up on bamboo chip; During powder charge, powder stick just to blasting body, and is dose strengthening segment bottom big gun hole, larger than design load q 1 ~ 4 times of the explosive payload of 1 ~ 2m section at the bottom of hole, the dark and lithology of value window and determining, and hole depth person and the hard person of lithology take large values.Top place, big gun hole is blocking section, and the explosive payload close to blocking section 1m place is 1/2 or 1/3 of design load q, and other positions, big gun hole are by the explosive payload powder charge calculated in step (3).Wherein, the tamper of blocking section is made up of clay, fine sand and water, and its granularity is at below 30mm, and water content is between 15% ~ 20%, and blocking segment length is generally 1 ~ 2m.In step (8), main blast hole district adopts Nonel detonator to connect networking, and adopts primacord to lay connection, and in order to ensure to detonate, time blast hole detonates simultaneously, and photoface exploision adopts fuse arming test experiment initiation, preferably adopts sectional parallel method.Firing order is the main blast hole of first row, the main blast hole of second row, light blast hole, is spaced apart 150 ~ 200ms wherein between the main blast hole of second row and light blast hole.And due to photoface exploision hole be finally detonate, primacord likely suffers advanced destruction, therefore can adopt the dual method of detonating of high section delay detonator and primacord to photoface exploision hole.
By step (10), if reach explosion object, then continue setting-out cloth hole, and be operated to explosion successively and complete, if demolition effect is poor, then need to investigate geology, and analyze failure cause, again after amendment photoface exploision scheme, then setting-out cloth hole, and carry out explosion in order.
The present invention, according to ripe outdoor medium-length hole Bench Blasting Technique, arranges intensive light blast hole on slope excavating border, and take Uncoincided charge or filling low-strength explosive in light blast hole, Zhu Bao district normally carries out layout big gun hole, powder charge.Light blast hole detonates after the explosion of Zhu Bao district, and Explosive stress wave is propagated to surrounding by light blast hole, occurs crack at hole wall and light blast hole line direction, then under explosion gas effect, former fracture extension is expanded, finally forms smooth contoured surface.
The invention has the beneficial effects as follows:
The present invention can control the blast action power of light blast hole effectively, decreases the disturbance of explosion to country rock, keeps the stable of country rock, guarantees construction safety; Scar after explosion is smooth, decreases overbreak-underbreak, reaches the requirement of design profile line; Reduce Harmful effects from blasting, effective controlled blasting vibrations; Improve construction quality and progress, save cost.
All kinds of smooth surface of rock rendrock of table 1 unit consumption table
| Sequence number | Rock consolidating coefficient f | K light (g/m 3) |
| 1 | 2～8 | 140～300 |
| 2 | 8～14 | 200～400 |
| 3 | 14～25 | 240～480 |
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is construction flow chart of the present invention.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Slope excavating photoface exploision method construction method as shown in Figure 1, comprising:
(1) research and design drawing and geological information, and to the step that top, slope and road of going up a hill are cleared up;
(2) step of surveying setting-out;
(3) step of Smooth Blasting Prameter Design;
(4) step in setting-out cloth hole;
(5) drilling machine platform is built, and by the step of drilling machine platform location;
(6) boring, clearly hole, the step of verifying;
(7) powder stick processing and powder charge, plugging hole top step;
(8) step of initiation net connection;
(9) step of explosion, needed to send blast warning signal by alarm before explosion;
(10) step checked after explosion.
Wherein, step (2) for push up accurate setting-out on the slope cleared up, and mark slope top excavate outline line, ensure the accurate of next step cloth hole.
The foundation that Parameters of Smooth Wall Blasting described in step (3) is selected is:
In formula:
During the deep hole blasting of D-aperture, highway, railway, water conservancy get D=80 ~ 100mm, and D=115 ~ 250mm is got in mine; During shallow blasting, get D=42 ~ 50mm;
H≤15m during H-shoulder height deep hole, 1.5m≤H≤5m during shallow bore hole;
α-side slope bore angle;
K-design factor, gets K=15 ~ 25, and soft rock takes large values, and hard rock gets the small value;
M-big gun hole close coefficient, gets m=0.6 ~ 0.8
K
light-photoface exploision unit consumption (see table 1), g/m
3.
The setting-out of above-mentioned side slope line, the setting-out of position, hole, hole depth are measured and are all adopted total powerstation to complete.
The main blast hole that light blast hole and two rows are interlocked will be arranged in step (4), the pitch-row of light blast hole is derived as a according to step (3), the pitch-row of main blast hole is greater than the pitch-row of light blast hole, and the hole depth of main blast hole and light blast hole and single hole explosive payload are all drawn by step (3).
Atlas hydraulic drill rig and tripod down-the-hole drill is adopted when light blast hole and main blast hole perforation process in step (6); Air compressor machine is adopted to come big gun rock slag in blowing hole, ponding, clear hole etc.The angle of boring is equal with slope angle, adopts geology compass machine to carry out check drilling rod direction and angle during boring.
In step (7), powder stick is that interval is tied up on primacord, and primacord is tied up on bamboo chip; During powder charge, powder stick just to blasting body, and is dose strengthening segment bottom big gun hole, larger than design load q 1 ~ 4 times of the explosive payload of 1 ~ 2m section at the bottom of hole, the dark and lithology of value window and determining, and hole depth person and the hard person of lithology take large values.Top place, big gun hole is blocking section, and the explosive payload close to blocking section 1m place is 1/2 or 1/3 of design load q, and other positions, big gun hole are by the explosive payload powder charge calculated in step (3).Wherein, the tamper of blocking section is made up of clay, fine sand and water, and its granularity is at below 30mm, and water content is between 15% ~ 20%, and blocking segment length is generally 1 ~ 2m.In step (8), main blast hole district adopts Nonel detonator to connect networking, and adopts primacord to lay connection, and in order to ensure to detonate, time blast hole detonates simultaneously, and photoface exploision adopts fuse arming test experiment initiation, preferably adopts sectional parallel method.Firing order is the main blast hole of first row, the main blast hole of second row, light blast hole, is spaced apart 150 ~ 200ms wherein between the main blast hole of second row and light blast hole.And due to photoface exploision hole be finally detonate, primacord likely suffers advanced destruction, therefore can adopt the dual method of detonating of high section delay detonator and primacord to photoface exploision hole.
By step (10), if reach explosion object, then continue setting-out cloth hole, and be operated to explosion successively and complete, if demolition effect is poor, then need to investigate geology, and analyze failure cause, again after amendment photoface exploision scheme, then setting-out cloth hole, and carry out explosion in order.
Beneficial effect of the present invention is:
1, the reduction of erection time: slope excavating Smooth Blasting Construction, the later stage side slope surface finishing process that traditional mechanical slope trimming and conventional blast method cause can be reduced, after bursting work, clear dregs immediately, then move in circles operation, and shaping side slope does not need finishing, can save a lot of time;
2, save cost: the plant equipment of input is few, and raw materials consumption is few, it is few that labour is equipped with compared with normal construction, saves cost 2 yuan/m
2;
3, efficiency is high: have large-scale perforating apparatus and various precision instrument to coordinate, efficiency of construction is high, and speed is fast, and the preparation time is short, and the follow-up work duration is short, and work flexibly;
4, reduce workload: explosion one-shot forming, decrease and backbreak, owe to dig;
5, quality is good: domatic flat smooth after explosion, and smooth rule, outline line meet designing requirement; Perception degree is good, and ornamental is worth high; Because light blast hole adopts Uncoincided charge or filling low-strength explosive, therefore little to protection Rock Damage, be beneficial to the stability of side slope surface.
6, security is high: the impact that effectively can reduce Harmful effects from blasting, reduces the impact that concussion of blasting is built rear, is applicable to various complex environment slope excavating.
7, construction method is simple: only need to adjust different parameters according under different geological conditions, just can reach ideal effect.
Above-mentioned is enlightenment according to the present invention, and by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on description, must determine its technical scope according to right.
Claims (8)
1. a slope excavating photoface exploision method construction method, is characterized in that, comprising:
(1) research and design drawing and geological information, and to the step that top, slope and road of going up a hill are cleared up;
(2) step of surveying setting-out;
(3) step of Smooth Blasting Prameter Design;
(4) step in setting-out cloth hole;
(5) drilling machine platform is built, and by the step of drilling machine platform location;
(6) boring, clearly hole, the step of verifying;
(7) powder stick processing and powder charge, plugging hole top step;
(8) step of initiation net connection;
(9) step of explosion;
(10) step checked after explosion.
2. slope excavating photoface exploision method construction method according to claim 1, is characterized in that, step (2) for push up accurate setting-out on the slope cleared up, and mark slope top excavate outline line.
3. slope excavating photoface exploision method construction method according to claim 1, is characterized in that, the foundation that Parameters of Smooth Wall Blasting described in step (3) is selected is:
In formula:
D-aperture;
H-shoulder height;
α-side slope bore angle;
K-design factor, gets K=15 ~ 25;
M-big gun hole close coefficient, gets m=0.6 ~ 0.8
K
light-photoface exploision unit consumption, g/m
3.
4. slope excavating photoface exploision method construction method according to claim 3, it is characterized in that, in step (4), arrange the main blast hole that light blast hole and two rows are interlocked, the pitch-row of light blast hole is a, the pitch-row of main blast hole is greater than the pitch-row of light blast hole, and hole depth and the single hole explosive payload of main blast hole and light blast hole are all passed through
Step (3) draws.
5. slope excavating photoface exploision method construction method according to claim 4, is characterized in that, in step (6), the angle of boring is equal with slope angle, adopts geology compass machine to carry out check drilling rod direction and angle during boring.
6. slope excavating photoface exploision method construction method according to claim 4, is characterized in that, in step (7), powder stick is that interval is tied up on primacord, and primacord is tied up on bamboo chip;
During powder charge, powder stick just to blasting body, and is dose strengthening segment bottom big gun hole, larger than design load q 1 ~ 4 times of the explosive payload of 1 ~ 2m section at the bottom of hole, and top place is blocking section, and the explosive payload close to blocking section 1m place is 1/2 or 1/3 of design load q.
7. slope excavating photoface exploision method construction method according to claim 6, is characterized in that, the tamper of blocking section is made up of clay, fine sand and water, and its granularity is at below 30mm, and water content is between 15% ~ 20%.
8. slope excavating photoface exploision method construction method according to claim 4, it is characterized in that, in step (8), main blast hole district adopts Nonel detonator to connect networking, and adopt primacord to lay connection, firing order is the main blast hole of first row, the main blast hole of second row, light blast hole, is spaced apart 150 ~ 200ms wherein between the main blast hole of second row and light blast hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095359.1A CN104913696A (en) | 2014-03-12 | 2014-03-12 | Side slope excavation smooth-surface blasting-method construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095359.1A CN104913696A (en) | 2014-03-12 | 2014-03-12 | Side slope excavation smooth-surface blasting-method construction method |
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| CN104913696A true CN104913696A (en) | 2015-09-16 |
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|---|---|---|---|
| CN201410095359.1A Pending CN104913696A (en) | 2014-03-12 | 2014-03-12 | Side slope excavation smooth-surface blasting-method construction method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288996A (en) * | 2016-08-24 | 2017-01-04 | 广西新港湾工程有限公司 | The one construction method of groove presplit blasting under water |
| CN106382120A (en) * | 2016-09-14 | 2017-02-08 | 中石化石油工程技术服务有限公司 | Detonating tunneling pipe-jacking construction method |
| CN107063014A (en) * | 2017-05-23 | 2017-08-18 | 安徽江南爆破工程有限公司 | Cutting shallow hole step controlled blasting slope cutting method in complex environment |
| CN108917503A (en) * | 2018-07-06 | 2018-11-30 | 中水电第十工程局（郑州）有限公司 | The horizontal presplit blasting method of deep hole applied to power station rock excavation |
| CN108955435A (en) * | 2018-08-21 | 2018-12-07 | 华东建工集团有限公司 | A kind of tunnel big cross section blasting construction method |
| CN109000526A (en) * | 2018-08-21 | 2018-12-14 | 四川中鼎爆破工程有限公司 | A kind of total station setting-out bore distribution method |
| CN109668487A (en) * | 2018-12-07 | 2019-04-23 | 中铁二十局集团第五工程有限公司 | Micro-vibration rock and soil blasting controls construction method |
| CN109883280A (en) * | 2019-03-21 | 2019-06-14 | 中国五冶集团有限公司 | A kind of middle weathering sandstone layer cubic meter of stone photoface exploision excavation construction method |
| CN110230959A (en) * | 2019-06-04 | 2019-09-13 | 中交路桥建设有限公司 | A kind of stone matter cut slope control blasting method |
| CN110940242A (en) * | 2019-12-19 | 2020-03-31 | 中国水利水电第七工程局有限公司 | Blasting excavation method for deep crack containing slope rock mass |
| CN111623677A (en) * | 2020-05-27 | 2020-09-04 | 山东省淮海工程建设监理有限公司 | Pilot hole smooth blasting construction method and blast hole positioning device |
| CN112129186A (en) * | 2020-09-25 | 2020-12-25 | 中国建筑材料工业建设西安工程有限公司 | Final slope blasting method convenient for plant-growing concrete spray planting |
| CN114674190A (en) * | 2022-03-07 | 2022-06-28 | 河北金隅鼎鑫水泥有限公司 | Mine smooth blasting method |
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2014
- 2014-03-12 CN CN201410095359.1A patent/CN104913696A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288996B (en) * | 2016-08-24 | 2018-05-25 | 广西新港湾工程有限公司 | A kind of underwater groove presplit blasting construction method |
| CN106288996A (en) * | 2016-08-24 | 2017-01-04 | 广西新港湾工程有限公司 | The one construction method of groove presplit blasting under water |
| CN106382120A (en) * | 2016-09-14 | 2017-02-08 | 中石化石油工程技术服务有限公司 | Detonating tunneling pipe-jacking construction method |
| CN107063014A (en) * | 2017-05-23 | 2017-08-18 | 安徽江南爆破工程有限公司 | Cutting shallow hole step controlled blasting slope cutting method in complex environment |
| CN107063014B (en) * | 2017-05-23 | 2018-11-20 | 安徽江南爆破工程有限公司 | Cutting shallow hole step controlled blasting slope cutting method in complex environment |
| CN108917503A (en) * | 2018-07-06 | 2018-11-30 | 中水电第十工程局（郑州）有限公司 | The horizontal presplit blasting method of deep hole applied to power station rock excavation |
| CN108955435B (en) * | 2018-08-21 | 2020-02-07 | 国诚集团有限公司 | Tunnel large-section blasting construction method |
| CN108955435A (en) * | 2018-08-21 | 2018-12-07 | 华东建工集团有限公司 | A kind of tunnel big cross section blasting construction method |
| CN109000526A (en) * | 2018-08-21 | 2018-12-14 | 四川中鼎爆破工程有限公司 | A kind of total station setting-out bore distribution method |
| CN109668487A (en) * | 2018-12-07 | 2019-04-23 | 中铁二十局集团第五工程有限公司 | Micro-vibration rock and soil blasting controls construction method |
| CN109883280A (en) * | 2019-03-21 | 2019-06-14 | 中国五冶集团有限公司 | A kind of middle weathering sandstone layer cubic meter of stone photoface exploision excavation construction method |
| CN110230959A (en) * | 2019-06-04 | 2019-09-13 | 中交路桥建设有限公司 | A kind of stone matter cut slope control blasting method |
| CN110940242A (en) * | 2019-12-19 | 2020-03-31 | 中国水利水电第七工程局有限公司 | Blasting excavation method for deep crack containing slope rock mass |
| CN110940242B (en) * | 2019-12-19 | 2022-06-21 | 中国水利水电第七工程局有限公司 | Blasting excavation method for deep crack containing slope rock mass |
| CN111623677A (en) * | 2020-05-27 | 2020-09-04 | 山东省淮海工程建设监理有限公司 | Pilot hole smooth blasting construction method and blast hole positioning device |
| CN112129186A (en) * | 2020-09-25 | 2020-12-25 | 中国建筑材料工业建设西安工程有限公司 | Final slope blasting method convenient for plant-growing concrete spray planting |
| CN114674190A (en) * | 2022-03-07 | 2022-06-28 | 河北金隅鼎鑫水泥有限公司 | Mine smooth blasting method |
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Application publication date: 20150916 |
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