CN104197796B - The annular segment blasting isolation method of existing building is worn under Shallow tunnel with large cross-section - Google Patents

The annular segment blasting isolation method of existing building is worn under Shallow tunnel with large cross-section Download PDF

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Publication number
CN104197796B
CN104197796B CN201410432239.6A CN201410432239A CN104197796B CN 104197796 B CN104197796 B CN 104197796B CN 201410432239 A CN201410432239 A CN 201410432239A CN 104197796 B CN104197796 B CN 104197796B
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China
Prior art keywords
tunnel
blasting
excavation
annular segment
hole
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CN201410432239.6A
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Chinese (zh)
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CN104197796A (en
Inventor
牛泽林
宋战平
黄捷胜
王超
李俊林
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Xian University of Architecture and Technology
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Xian University of Architecture and Technology
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Abstract

The invention discloses a kind of annular segment blasting isolation method wearing existing building under Shallow tunnel with large cross-section, set spacing 40cm, diameter 108mm steel pipe in the range of 120 ° 150 °, arch, tunnel, length controls at 10 30m, and angle not should be greater than 3 ° 5 °;Between each two steel tube shed, set plays spacing 40cm, diameter 42mm ductule, and length controls at 3 5m, and angle not should be greater than 3 ° 5 °;The slip casting work of steel tube shed and ductule is carried out after tunnel excavation passes through this section;Horizontal wedge type slotting is applied topping bar of tunnel;Cut spreader hole carries out annular segment Blasting Excavation, and zones of different uses the blasting cap initiation of different section;Via hole and the periphery hole topped bar in tunnel use annular segment, segment blast excavation equally;In tunnel, Blasting Excavation of getting out of a predicament or an embarrassing situation all uses and up and down carries out Blasting Excavation along layering, the method for segmentation.The present invention can effectively reduce the harm that Tunnel Blasting causes.

Description

The annular segment blasting isolation method of existing building is worn under Shallow tunnel with large cross-section
Technical field
The invention belongs to Line technology field, the annular wearing existing building under a kind of Shallow tunnel with large cross-section is divided Layer blasting isolation method.
Background technology
Tunnel is as the node engineering in line project, and due to landform and the difference of landforms, constructing tunnel has greatly Polytropy.Just because of these reasons, will have in the construction project in crossings on different level formula tunnel, Mountain Urban Area much cannot be pre- The difficulty known and danger, such as: newly built tunnels and existing tunnel and and existing buildings or structures between on across, under wear and low coverage is executed The blast working in man-hour is exactly a difficulties, annoyings engineers and technicians always.How to reduce blast working to low coverage The vibration effect of existing buildings or structures, takes which kind of effective glissando etc., and these are all Mountain Urban Area shallow embedding tunnels Wear under road or on across existing buildings or structures technical barrier to be faced.These issue handlings are the most improper, not only can give people The life of the people masses and property bring and threaten greatly and loss, and also bring along the impact of great negative social.
Summary of the invention
In order to solve problems of the prior art, the present invention provides and wears existing building under a kind of Shallow tunnel with large cross-section The annular segment blasting isolation method of thing, is possible not only to be greatly reduced the vibration velocity of Tunnel Blasting and to existing buildings or structures Harm, and the generation of out break phenomenon can be efficiently controlled and avoid the phenomenon disturbed residents of constructing.This technical method is to mountain In cities and towns, district, construction and the development of tunnel crossings on different level pattern have important directive significance and application and popularization value.Its technical side Case is:
Wear the annular segment blasting isolation method of existing building under a kind of Shallow tunnel with large cross-section, comprise the following steps:
1) first, setting spacing 40cm, diameter 108mm steel pipe in the range of 120 °-150 °, arch, tunnel, length controls 10-30m, angle not should be greater than 3 °-5 °;Secondly, between each two steel tube shed, set plays spacing 40cm, diameter 42mm ductule, long Degree controls at 3-5m, and angle not should be greater than 3 °-5 °;Finally, after tunnel excavation passes through this section, carry out steel tube shed and little lead The slip casting work of pipe;
2) top bar in tunnel and apply horizontal wedge type slotting;Cut spreader hole carries out annular segment Blasting Excavation, and zones of different Use the blasting cap initiation of different section;
3) via hole and the periphery hole that top bar in tunnel use annular segment, segment blast excavation equally;
4) in tunnel, Blasting Excavation of getting out of a predicament or an embarrassing situation all uses and carries out Blasting Excavation along layering, the method for segmentation up and down.
Compared with prior art, the invention have the benefit that
The present invention is possible not only to be greatly reduced the vibration velocity of Tunnel Blasting and the harm to existing buildings or structures, and The generation of out break phenomenon can be efficiently controlled and avoid the phenomenon disturbed residents of constructing.This technical method is to tunnel in Mountain Urban Area The construction of crossings on different level pattern and development have important directive significance.
Accompanying drawing explanation
Fig. 1 is annular segment segment blast damping excavating load schematic diagram, wherein: numeral-detonator section, ●-powder charge hole, Zero-emptying aperture;
Fig. 2 is that advanced damping ductule coordinates damping daguanpeng construction schematic diagram;
Fig. 3 is that emptying aperture coordinates horizontal slotting and expands groove construction schematic diagram;
Fig. 4 is annular segment segment blast construction schematic diagram of topping bar;
Fig. 5 is middle step horizontal slice segment blast construction schematic diagram;
Fig. 6 is horizontal slice segment blast construction schematic diagram of getting out of a predicament or an embarrassing situation.
Detailed description of the invention
With detailed description of the invention, technical scheme is described further below in conjunction with the accompanying drawings.
The technology of the present invention method is made up of three parts content.Part I is that shock absorption system damping steel tube shed coordinates Damping ductule;Part II be controlled blasting excavation system emptying aperture be equipped with wedge shot, cut spreader hole, via hole and Periphery hole annular segment, segment blast excavation;Part III is middle step and the suitable layer and section explosion system got out of a predicament or an embarrassing situation, such as figure Shown in 1.
Wear the annular segment blasting isolation method of existing building under a kind of Shallow tunnel with large cross-section, comprise the following steps:
1) first, setting spacing 40cm, diameter 108mm steel pipe in the range of 120 °-150 °, arch, tunnel, length controls 10-30m, angle not should be greater than 3 °-5 °;Secondly, between each two steel tube shed, set plays spacing 40cm, diameter 42mm ductule, long Degree controls at 3-5m, and angle not should be greater than 3 °-5 °;Finally, after tunnel excavation passes through this section, carry out steel tube shed and little lead The slip casting work of pipe;Such as Fig. 2;
2) top bar in tunnel and apply horizontal wedge type slotting;Cut spreader hole carries out annular segment Blasting Excavation, and zones of different Use the blasting cap initiation of different section, in Fig. 1Part and Fig. 3;
3) via hole and the periphery hole that top bar in tunnel use annular segment, segment blast excavation, equally in Fig. 1 Part and Fig. 4;
4) in tunnel, Blasting Excavation of getting out of a predicament or an embarrassing situation all uses and carries out Blasting Excavation, the most such as along layering, the method for segmentation up and down In Fig. 1Part and Fig. 5, Fig. 6.
The above, the only present invention preferably detailed description of the invention, protection scope of the present invention is not limited to this, any ripe Know those skilled in the art, in the technical scope of present disclosure, the technical scheme that can become apparent to Simple transformation or equivalence are replaced and are each fallen within protection scope of the present invention.

Claims (1)

1. wear the annular segment blasting isolation method of existing building under a Shallow tunnel with large cross-section, it is characterised in that include Following steps:
First, setting spacing 40cm, diameter 108mm steel pipe in the range of 120 °-150 °, arch, tunnel, length controls at 10- 30m, angle not should be greater than 3 °-5 °;Secondly, between each two steel tube shed, set plays spacing 40cm, diameter 42mm ductule, length control System is at 3-5m, and angle not should be greater than 3 °-5 °;Finally, after tunnel excavation passes through this section, carry out steel tube shed and ductule Slip casting works, and described tunnel excavation comprises the following steps;
1) top bar in tunnel and apply horizontal wedge type slotting;Cut spreader hole carries out annular segment Blasting Excavation, and zones of different uses The blasting cap initiation of different sections;
2) via hole and the periphery hole that top bar in tunnel use annular segment, segment blast excavation equally;
3) in tunnel, Blasting Excavation of getting out of a predicament or an embarrassing situation all uses and carries out Blasting Excavation along layering, the method for segmentation up and down.
CN201410432239.6A 2014-08-26 2014-08-26 The annular segment blasting isolation method of existing building is worn under Shallow tunnel with large cross-section Expired - Fee Related CN104197796B (en)

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Publication number Priority date Publication date Assignee Title
CN106368710A (en) * 2015-07-24 2017-02-01 中国铁建大桥工程局集团有限公司 Pavement protection method for super shallow-buried tunnel penetrating through existing road underneath
CN105003283B (en) * 2015-08-05 2017-10-27 金陵科技学院 A kind of top-bottom cross tunnel shock-absorbing structure and its construction method
CN105606000B (en) * 2016-01-11 2017-04-12 德阳坚兵工程技术有限公司 Partition control blasting method for tunnel rock drilling project
CN105649634B (en) * 2016-01-11 2018-01-16 坚兵(北京)工程技术有限公司 A kind of high ferro Tunnel Engineering hydraulic drill ring mechanization photoface exploision drivage method
CN105627850A (en) * 2016-01-28 2016-06-01 辽宁工程技术大学 Method for blasting construction of upper and lower fracture surfaces in IV/V-class surrounding rock through three-arm jumbo drill
CN105605996A (en) * 2016-01-28 2016-05-25 中交隧道工程局有限公司北京分公司 Method for carrying out bench cut method construction in IV-grade surrounding rocks by using three-arm drill jumbo
CN106761776B (en) * 2016-12-16 2020-06-02 石家庄铁道大学 Construction method for ultra-shallow tunnel shield to penetrate existing pipeline downwards
CN111059970A (en) * 2019-12-13 2020-04-24 中铁十八局集团有限公司 Multistage ultra-deep hole ballast-throwing vibration-control self-stabilizing blasting method for upper step of hard rock in tunnel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102287194A (en) * 2010-06-21 2011-12-21 福建省信通工程建设有限公司 Construction method of multi-span gently arc tunnel
CN102758632A (en) * 2012-07-19 2012-10-31 中铁隧道集团有限公司 Rock stratum double initial support layering method for establishing large-scale underground structure
CN103123247A (en) * 2013-01-07 2013-05-29 重庆建工集团股份有限公司 Damping blasting method for steep dip small crossing angle layered surrounding rock small-distance tunnel excavation
CN103234403A (en) * 2013-04-24 2013-08-07 中国科学院武汉岩土力学研究所 Static blasting construction method for highway tunnel
CN103344154A (en) * 2013-07-05 2013-10-09 武汉科技大学 Carbonaceous schist tunnel blasting method and construction method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110133969A (en) * 2010-06-08 2011-12-14 주식회사 고려노벨화약 Blasting method suing low shock explosive and standad shock explosive

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102287194A (en) * 2010-06-21 2011-12-21 福建省信通工程建设有限公司 Construction method of multi-span gently arc tunnel
CN102758632A (en) * 2012-07-19 2012-10-31 中铁隧道集团有限公司 Rock stratum double initial support layering method for establishing large-scale underground structure
CN103123247A (en) * 2013-01-07 2013-05-29 重庆建工集团股份有限公司 Damping blasting method for steep dip small crossing angle layered surrounding rock small-distance tunnel excavation
CN103234403A (en) * 2013-04-24 2013-08-07 中国科学院武汉岩土力学研究所 Static blasting construction method for highway tunnel
CN103344154A (en) * 2013-07-05 2013-10-09 武汉科技大学 Carbonaceous schist tunnel blasting method and construction method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
大管棚和超前注浆小导管支护在隧道中的应用;李汉忠;《建筑机械化》;20090530;第3部分、图1 *

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