CN104848753A - Rock blasting control construction method implemented near existing railway line - Google Patents
Rock blasting control construction method implemented near existing railway line Download PDFInfo
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- CN104848753A CN104848753A CN201510183959.8A CN201510183959A CN104848753A CN 104848753 A CN104848753 A CN 104848753A CN 201510183959 A CN201510183959 A CN 201510183959A CN 104848753 A CN104848753 A CN 104848753A
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Abstract
The invention discloses a rock blasting control construction method implemented near an existing railway line. The method comprises the steps of field investigation, design of a blasting and protecting scheme, hole arrangement, hole drilling, calculation of the single-hole explosive filling amount, explosive filling, blocking blasting and other steps. According to the rock blasting control construction method implemented near the existing railway line, an appropriate method is selected, blasting parameters are adjusted, blasting and protecting are combined, a blasted body only becomes loose after blasting, and the situation that flying stones fly disorderly to damage the existing railway line is avoided.
Description
Technical field
The present invention relates to Blasting Control technical field of construction, particularly relate to one and close on Existing Railway Line stone excavation construction method.
Background technology
Both wired stone excavation construction, be close to the other cutting that carries out of the existing route run to expand the construction of moat rock blasting, require when not affecting train and normally running, train operation gap is utilized to implement explosion, accomplish by quick-fried rock-mass relaxing simultaneously and do not cave in, effectively ensureing the safety of existing line and affiliated facility.Because concussion of blasting is strong, can slungshot be produced in the process of explosion, produce huge threat to closing on both wired operations, therefore, need continuous summing up experience, reach and weaken concussion of blasting, eliminate the effect of slungshot, but existing blasting method effect not very desirable.
Summary of the invention
In order to solve the problem in background technology, the present invention proposes one and close on Existing Railway Line stone excavation construction method, it is by selecting suitable method, and adjust blasting parameter, explosion and protection are combined, after explosion, blasting body only produces loosening, avoids the random destruction flown existing line of slungshot.
The one that the present invention proposes closes on Existing Railway Line stone excavation construction method, comprises the following steps:
A, field investigation, then carry out explosion and protectiving scheme design according to field condition;
B, according to protectiving scheme design carry out cloth hole and set up protection framed bent;
Carry out holing after terminating and carry out the inspection of big gun hole in C, cloth hole; Wherein, the boring direction maintaining each artillery salvo hole in the process of boring is parallel, adopt angling hole, and inclination angle, big gun hole is 70-80 °;
D, according to geology, ambient conditions, calculate single hole explosive payload powder charge; In the process of powder charge, powder charge is monitored and checks;
E, by multiple-row blasting post-tensioning warning line and discharge signal, carry out covered protection and totally-enclosed by wall type protection framed bent simultaneously;
F, properly protect after detonate;
G, detonate terminate after carry out inspection and to go forward side by side post processing of doing good works.
Preferably, in B, the mode of carrying out cloth hole is the combination of a kind of in many row rectangular cloth holes and triangle cloth hole or two kinds.
Preferably, in C, inclination angle, big gun hole is 72-78 °.
Preferably, in C, inclination angle, big gun hole is 75 °.
Preferably, in C, the degree of depth in institute's brill big gun hole is 2.5-3.8m, and borehole spacing is 1.8-3m.
Preferably, in E, stemming length is 0.8-1m.
The one that the present invention proposes closes on Existing Railway Line stone excavation construction method, it by selecting suitable method, and adjusts blasting parameter, and explosion and protection are combined, after explosion, blasting body only produces loosening, avoids the random destruction flown existing line of slungshot.
Detailed description of the invention
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
One closes on Existing Railway Line stone excavation construction method, comprises the following steps:
A, field investigation, then carry out explosion and protectiving scheme design according to field condition;
B, according to protectiving scheme design carry out cloth hole and set up protection framed bent;
Carry out holing after terminating and carry out the inspection of big gun hole in C, cloth hole; Wherein, the boring direction maintaining each artillery salvo hole in the process of boring is parallel, adopt angling hole, and inclination angle, big gun hole is 70 °;
D, according to geology, ambient conditions, calculate single hole explosive payload powder charge; In the process of powder charge, powder charge is monitored and checks;
E, by multiple-row blasting post-tensioning warning line and discharge signal, carry out covered protection and totally-enclosed by wall type protection framed bent simultaneously;
F, properly protect after detonate;
G, detonate terminate after carry out inspection and to go forward side by side post processing of doing good works.
Embodiment 2
One closes on Existing Railway Line stone excavation construction method, comprises the following steps:
A, field investigation, then carry out explosion and protectiving scheme design according to field condition;
B, according to protectiving scheme design carry out cloth hole and set up protection framed bent;
Carry out holing after terminating and carry out the inspection of big gun hole in C, cloth hole; Wherein, the boring direction maintaining each artillery salvo hole in the process of boring is parallel, adopt angling hole, and inclination angle, big gun hole is 80 °;
D, according to geology, ambient conditions, calculate single hole explosive payload powder charge; In the process of powder charge, powder charge is monitored and checks;
E, by multiple-row blasting post-tensioning warning line and discharge signal, carry out covered protection and totally-enclosed by wall type protection framed bent simultaneously;
F, properly protect after detonate;
G, detonate terminate after carry out inspection and to go forward side by side post processing of doing good works.
Embodiment 3
One closes on Existing Railway Line stone excavation construction method, comprises the following steps:
A, field investigation, then carry out explosion and protectiving scheme design according to field condition;
B, according to protectiving scheme design carry out cloth hole and set up protection framed bent; Wherein, pattern is many row rectangular cloth holes;
Carry out holing after terminating and carry out the inspection of big gun hole in C, cloth hole; Wherein, the boring direction maintaining each artillery salvo hole in the process of boring is parallel, and adopt angling hole, and inclination angle, big gun hole is 72 °, the degree of depth in institute's brill big gun hole is 2.5m, and borehole spacing is 3m;
D, according to geology, ambient conditions, calculate single hole explosive payload powder charge; In the process of powder charge, powder charge is monitored and checks;
E, by multiple-row blasting post-tensioning warning line and discharge signal, carry out covered protection and totally-enclosed by wall type protection framed bent simultaneously; Wherein, stemming length is 0.8m;
F, properly protect after detonate;
G, detonate terminate after carry out inspection and to go forward side by side post processing of doing good works.
Embodiment 4
One closes on Existing Railway Line stone excavation construction method, comprises the following steps:
A, field investigation, then carry out explosion and protectiving scheme design according to field condition;
B, according to protectiving scheme design carry out cloth hole and set up protection framed bent; Wherein, pattern is triangle cloth hole;
Carry out holing after terminating and carry out the inspection of big gun hole in C, cloth hole; Wherein, the boring direction maintaining each artillery salvo hole in the process of boring is parallel, and adopt angling hole, and inclination angle, big gun hole is 78 °, the degree of depth in institute's brill big gun hole is 3.8m, and borehole spacing is 1.8m;
D, according to geology, ambient conditions, calculate single hole explosive payload powder charge; In the process of powder charge, powder charge is monitored and checks;
E, by multiple-row blasting post-tensioning warning line and discharge signal, carry out covered protection and totally-enclosed by wall type protection framed bent simultaneously; Wherein, stemming length is 1m;
F, properly protect after detonate;
G, detonate terminate after carry out inspection and to go forward side by side post processing of doing good works.
Embodiment 5
One closes on Existing Railway Line stone excavation construction method, comprises the following steps:
A, field investigation, then carry out explosion and protectiving scheme design according to field condition;
B, according to protectiving scheme design carry out cloth hole and set up protection framed bent; Wherein, pattern is the combination in many row rectangular cloth holes and two kinds, triangle cloth hole;
Carry out holing after terminating and carry out the inspection of big gun hole in C, cloth hole; Wherein, the boring direction maintaining each artillery salvo hole in the process of boring is parallel, and adopt angling hole, and inclination angle, big gun hole is 75 °, the degree of depth in institute's brill big gun hole is 3.5m, and borehole spacing is 2.2m;
D, according to geology, ambient conditions, calculate single hole explosive payload powder charge; In the process of powder charge, powder charge is monitored and checks;
E, by multiple-row blasting post-tensioning warning line and discharge signal, carry out covered protection and totally-enclosed by wall type protection framed bent simultaneously; Wherein, stemming length is 0.9m;
F, properly protect after detonate;
G, detonate terminate after carry out inspection and to go forward side by side post processing of doing good works.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (6)
1. close on an Existing Railway Line stone excavation construction method, it is characterized in that, comprise the following steps:
A, field investigation, then carry out explosion and protectiving scheme design according to field condition;
B, according to protectiving scheme design carry out cloth hole and set up protection framed bent;
Carry out holing after terminating and carry out the inspection of big gun hole in C, cloth hole; Wherein, the boring direction maintaining each artillery salvo hole in the process of boring is parallel, adopt angling hole, and inclination angle, big gun hole is 70-80 °;
D, according to geology, ambient conditions, calculate single hole explosive payload powder charge; In the process of powder charge, powder charge is monitored and checks;
E, by multiple-row blasting post-tensioning warning line and discharge signal, carry out covered protection and totally-enclosed by wall type protection framed bent simultaneously;
F, properly protect after detonate;
G, detonate terminate after carry out inspection and to go forward side by side post processing of doing good works.
2. close on Existing Railway Line stone excavation construction method according to claim 1, it is characterized in that, in B, the mode of carrying out cloth hole is the combination of a kind of in many row rectangular cloth holes and triangle cloth hole or two kinds.
3. close on Existing Railway Line stone excavation construction method according to claim 1, it is characterized in that, in C, inclination angle, big gun hole is 72-78 °.
4. close on Existing Railway Line stone excavation construction method according to claim 3, it is characterized in that, in C, inclination angle, big gun hole is 75 °.
5. close on Existing Railway Line stone excavation construction method according to claim 1, it is characterized in that, in C, the degree of depth in institute's brill big gun hole is 2.5-3.8m, and borehole spacing is 1.8-3m.
6. according to any one of claim 1-5, close on Existing Railway Line stone excavation construction method, it is characterized in that, in E, stemming length is 0.8-1m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183959.8A CN104848753A (en) | 2015-04-20 | 2015-04-20 | Rock blasting control construction method implemented near existing railway line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183959.8A CN104848753A (en) | 2015-04-20 | 2015-04-20 | Rock blasting control construction method implemented near existing railway line |
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| CN104848753A true CN104848753A (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510183959.8A Pending CN104848753A (en) | 2015-04-20 | 2015-04-20 | Rock blasting control construction method implemented near existing railway line |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698619A (en) * | 2016-02-03 | 2016-06-22 | 中铁隧道集团有限公司 | Blasting construction method used before construction of mountain shortcuts above existing roads |
| CN114877765A (en) * | 2022-06-14 | 2022-08-09 | 保利长大工程有限公司 | Blasting control method for temporary traffic road section |
| CN116771273A (en) * | 2023-06-21 | 2023-09-19 | 中国水利水电第三工程局有限公司 | High-short-circuit cutting stone blasting excavation method |
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| CN102419140A (en) * | 2011-11-25 | 2012-04-18 | 中铁十二局集团第三工程有限公司 | Multielement three-dimensional safety protection method |
| CN103629980A (en) * | 2013-12-16 | 2014-03-12 | 中铁二十三局集团第四工程有限公司 | Adjacent existing railway steep mountain loosen control blast construction method |
| CN204027464U (en) * | 2014-08-21 | 2014-12-17 | 中铁二十局集团第三工程有限公司 | The major diameter of the closing on existing railway line basic shallow blasting excavation construction structure that digs a well |
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2015
- 2015-04-20 CN CN201510183959.8A patent/CN104848753A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102419140A (en) * | 2011-11-25 | 2012-04-18 | 中铁十二局集团第三工程有限公司 | Multielement three-dimensional safety protection method |
| CN103629980A (en) * | 2013-12-16 | 2014-03-12 | 中铁二十三局集团第四工程有限公司 | Adjacent existing railway steep mountain loosen control blast construction method |
| CN204027464U (en) * | 2014-08-21 | 2014-12-17 | 中铁二十局集团第三工程有限公司 | The major diameter of the closing on existing railway line basic shallow blasting excavation construction structure that digs a well |
Non-Patent Citations (3)
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| 何广沂等: "《电气化铁路既有线扩堑石方控制爆破安全快速施工技术》", 《中国工程科学》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698619A (en) * | 2016-02-03 | 2016-06-22 | 中铁隧道集团有限公司 | Blasting construction method used before construction of mountain shortcuts above existing roads |
| CN114877765A (en) * | 2022-06-14 | 2022-08-09 | 保利长大工程有限公司 | Blasting control method for temporary traffic road section |
| CN116771273A (en) * | 2023-06-21 | 2023-09-19 | 中国水利水电第三工程局有限公司 | High-short-circuit cutting stone blasting excavation method |
| CN116771273B (en) * | 2023-06-21 | 2024-03-19 | 中国水利水电第三工程局有限公司 | High-short-circuit cutting stone blasting excavation method |
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Application publication date: 20150819 |
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