CN103557007B - Cross the construction method of geological anomaly zone soft-rock tunnel smashed to pieces - Google Patents
Cross the construction method of geological anomaly zone soft-rock tunnel smashed to pieces Download PDFInfo
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- CN103557007B CN103557007B CN201310399662.6A CN201310399662A CN103557007B CN 103557007 B CN103557007 B CN 103557007B CN 201310399662 A CN201310399662 A CN 201310399662A CN 103557007 B CN103557007 B CN 103557007B
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Abstract
The invention discloses a kind of construction method crossing geological anomaly zone soft-rock tunnel smashed to pieces, this supporting and protection structure comprises the steel plate high-strength concrete layer arranged along tunnel inwall circumferencial direction, described steel plate high-strength concrete layer is connected to form successively by several arc monomer members, described arc monomer members comprises the component body be made up of steel plate, is filled with high-strength slightly expanded concrete in the internal cavity of described component body.Described arc monomer members adopts first bottom when mounted, rear both sides, the form of construction work finally bound.Applicability of the present invention is strong, and whole coil support can, according to the size of circular tunnel section, adopt the adjustable prefabricated arc monomer members of quantity to be assembled in down-hole, reliable in quality, easily manufactured, and has the advantage that intensity is high and supporting drag is large.
Description
Technical field
The present invention relates to mine timbering field, be specifically related to a kind of construction method crossing geological anomaly zone soft-rock tunnel smashed to pieces.
Background technology
When the abnormal geological bands such as coal mine deep well tunnel passing fault, due to architectonic effect, in abnormal belt, rock mass is abnormal broken, loose, moisture, during driving, roadway deformation amount is too large, also have " like mud-rock flow " phenomenon, cause great difficulty and there is great potential safety hazard to construction and support work.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of construction method crossing geological anomaly zone soft-rock tunnel smashed to pieces avoided the abnormal geological band section tunnel to occur destroying for times and the unfavorable situation such as to reprocess is provided.
A kind of supporting and protection structure crossing geological anomaly zone soft-rock tunnel smashed to pieces, comprise the steel plate high-strength concrete layer arranged along tunnel inwall circumferencial direction, described steel plate high-strength concrete layer is connected to form successively by several arc monomer members, described arc monomer members comprises the component body be made up of steel plate, is filled with high-strength slightly expanded concrete in the internal cavity of described component body.
Preferably,
Described arc monomer members quantity is 6 ~ 8.
Preferably,
Described high-strength slightly expanded concrete is the high-strength slightly expanded concrete of C80.
Preferably,
Described arc monomer members joint is provided with compressible backing plate.
Preferably,
The intrados of described arc monomer members and joint face place are equipped with the holdfast to member tube intracoelomic cavity direction.
Preferably,
The circumferentially uniform of described arc monomer members offers two injected hole/lifting hole(eyelet)s.
Preferably,
The end face of described arc monomer members is welded with connecting angle in the radial direction, and connecting angle is processed with bolt hole.
Preferably,
The fly-ash mortar filling bed be also provided with successively between described steel plate high-strength concrete layer and tunnel inwall and U36 type support.
Cross a construction method for geological anomaly zone soft-rock tunnel smashed to pieces, concrete steps are:
One, in tunnel, set up U36 type support;
Two, on U36 type support, one deck harsh concrete bed course is laid;
Three, on harsh concrete bed course, install the arc monomer members being positioned at bottom;
Four, the arc monomer members of side direction is set in two frame side of bottom arc monomer members;
Five, between the arc monomer members top of two side direction, be positioned at the arc monomer members on top;
Six, after a circle arc monomer members is installed and terminated, adopt pulp shooting machine to spray filler to fly-ash mortar filling bed, form integer support structure.
When down-hole arc monomer members is installed, the joint of the arc monomer members in step 3 to five is also placed with one piece of compressible backing plate.
Structural advantage of the present invention is: 1, applicability is strong, and whole coil support can, according to the size of circular tunnel section, adopt the adjustable prefabricated arc monomer members of quantity to be assembled in down-hole.2, monomer members can adopt factorial praluction on ground, and reliable in quality is easily manufactured.3, concrete strength high (can reach C80 ~ 100), rack bearing is large, and supporting drag is large, and realizes contracting by fly-ash mortar filling bed after the compressible backing plate of joint and wall and allow pressure, increases that to hinder characteristic good, can carry immediately after erection.
Method advantage of the present invention is: easy construction, can be reached pressure regulation effect, be reduced the inhomogeneities of pressure from surrounding rock, for support provides good stress condition, be conducive to the performance of structural bearing capacity by the compressive strain of support with backfilling layer.
Accompanying drawing explanation
Fig. 1 is mounting structure schematic diagram of the present invention.
Fig. 2 is the structural representation of arc monomer members in the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described.Should be understood that following examples only for illustration of the present invention but not for limiting the scope of the invention.
See Fig. 1, a kind of supporting and protection structure crossing geological anomaly zone soft-rock tunnel smashed to pieces provided by the invention, comprise the sheath 1 arranged along tunnel inwall circumferencial direction, in the prior art, the set-up mode propping up sheath 1 adopts the mode of bolt-spary supports and metallic support supporting usually, but be subject to surrouding rock deformation degree and self can contracting quantitative limitation, do not can solve the technical problem described in background technology.
Overcome its defect in order to the current known technology Problems existing that solves described in this manual background technology part, the technical scheme that the present invention takes is: as shown in Figure 1, described sheath 1 is the steel plate high-strength concrete layer connected to form successively by 6 ~ 8 arc monomer members 2, (certainly, arc monomer members quantity also can according to actual circular tunnel section size, carry out correspondence adjustment, 6 ~ 8 arc monomer members are optimal design.) see Fig. 2, described arc monomer members 2 comprises the component body 2a be made up of the steel plate that 20mm is thick, is filled with the high-strength slightly expanded concrete 2b of C80 in the internal cavity of described component body 2a, forms steel plate high-strength concrete arc monomer members.Monomer members adopts factorial praluction on ground, reliable in quality, concrete strength high (can reach C80 ~ 100), has rack bearing large, the advantage that supporting drag is large.
The present invention is in order to further improve its structure, and structure of the present invention in the specific implementation, on above-described technical scheme basis, can also adopt the following examples:
Embodiment 1
See Fig. 1, the cross section of described arc monomer members 2 is rectangular, and joint is provided with the thick compressible backing plate 3 of 20mm, and realization can be contracted and be allowed pressure.
Embodiment 2
The intrados of described arc monomer members 2 and joint face place are equipped with the holdfast 2c (length 100mm) of cavity direction in component body 2a, strengthen bonding with concrete.
Embodiment 3
The circumferentially uniform of described arc monomer members 2 offers two injected hole/lifting hole(eyelet)s 4, facilitates underground construction lifting and grouting behind shaft or drift lining filling.
Embodiment 4
The end face of described arc monomer members 2 is welded with connecting angle in the radial direction, is processed with bolt hole above it.Guarantee reliable connection when down-hole is assembled.
Embodiment 5
Fly-ash mortar filling bed 5 and the U36 type support 6 of 200mm is also provided with successively between described steel plate high-strength concrete layer 3 and tunnel inwall.Can effectively improve bearing strength of the present invention and reliability.
Present invention also offers this its construction method crossing geological anomaly zone soft-rock tunnel smashed to pieces, concrete steps are:
One, tunnelling, sets up U36 type support 6 after it meets design section size;
Two, on U36 type support 6, one deck harsh concrete bed course is laid;
Three, on harsh concrete bed course, install the arc monomer members 2 being positioned at bottom;
Four, the arc monomer members 2 of side direction is set in two frame side of bottom arc monomer members 2;
Five, between arc monomer members 2 top of two side direction, be positioned at the arc monomer members 2 on top;
Six, after circle arc monomer members 2 installation terminates, adopt pulp shooting machine to spray filler to fly-ash mortar filling bed 5, form integer support structure.
When down-hole arc monomer members 2 is installed, the joint of all arc monomer members 2 also needs the compressible backing plate 3 of placement one piece.
Claims (8)
1. cross a construction method for geological anomaly zone soft-rock tunnel smashed to pieces, it is characterized in that:
Concrete steps are:
(1) in tunnel, set up U36 type support;
(2), on U36 type support, one deck harsh concrete bed course is laid;
(3) on harsh concrete bed course, install the arc monomer members being positioned at bottom;
(4) the arc monomer members of side direction, is set in two frame side of bottom arc monomer members;
(5) between the arc monomer members top of two side direction, be positioned at the arc monomer members on top;
(6), after a circle arc monomer members installs and terminate, adopt pulp shooting machine to spray filler to fly-ash mortar filling bed, form integer support structure;
Described integer support structure, comprise the steel plate high-strength concrete layer arranged along tunnel inwall circumferencial direction, described steel plate high-strength concrete layer is connected to form successively by multiple arc monomer members, described arc monomer members comprises the component body be made up of steel plate, is filled with high-strength slightly expanded concrete in the internal cavity of described component body.
2. the construction method crossing geological anomaly zone soft-rock tunnel smashed to pieces according to claim 1, is characterized in that: described arc monomer members quantity is 6 ~ 8.
3. the construction method crossing geological anomaly zone soft-rock tunnel smashed to pieces according to claim 1, is characterized in that: described high-strength slightly expanded concrete is the high-strength slightly expanded concrete of C80.
4. the construction method crossing geological anomaly zone soft-rock tunnel smashed to pieces according to claim 1,2 or 3, is characterized in that: the intrados of described arc monomer members and joint face place are equipped with the holdfast to member tube intracoelomic cavity direction.
5. the construction method crossing geological anomaly zone soft-rock tunnel smashed to pieces according to claim 1,2 or 3, is characterized in that: the circumferentially uniform of described arc monomer members offers two injected hole/holes for hoist.
6. the construction method crossing geological anomaly zone soft-rock tunnel smashed to pieces according to claim 1,2 or 3, is characterized in that: the end face of described arc monomer members is welded with connecting angle in the radial direction, and connecting angle is processed with bolt hole.
7. the construction method crossing geological anomaly zone soft-rock tunnel smashed to pieces according to claim 1,2 or 3, is characterized in that: the fly-ash mortar filling bed be also provided with successively between described steel plate high-strength concrete layer and tunnel inwall and U36 type support.
8. the construction method crossing geological anomaly zone soft-rock tunnel smashed to pieces according to claim 1, is characterized in that: the joint of the arc monomer members in step 3 to five is also placed with one piece of compressible backing plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310399662.6A CN103557007B (en) | 2013-08-27 | 2013-08-27 | Cross the construction method of geological anomaly zone soft-rock tunnel smashed to pieces |
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| CN201310399662.6A CN103557007B (en) | 2013-08-27 | 2013-08-27 | Cross the construction method of geological anomaly zone soft-rock tunnel smashed to pieces |
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| Publication Number | Publication Date |
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| CN103557007A CN103557007A (en) | 2014-02-05 |
| CN103557007B true CN103557007B (en) | 2015-10-21 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912292B (en) * | 2014-04-23 | 2016-05-04 | 辽宁工程技术大学 | One is passed through tomography tunnel water proof damping erosion control coupling supporting method |
| CN104895580B (en) * | 2015-05-14 | 2017-03-01 | 张晓德 | A kind of autologous method for protecting support of country rock of soft rock roadway and supporting are with stirring note rig |
| CN106837333A (en) * | 2017-01-17 | 2017-06-13 | 济宁矿业集团有限公司霄云煤矿 | A kind of fully-mechanized mining working pre-tunnel laneway road formula passing fault method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2289878Y (en) * | 1996-05-07 | 1998-09-02 | 武汉水利电力大学 | Water dilivery tunnel concrete tunnel liner tile |
| WO2006081214A2 (en) * | 2005-01-26 | 2006-08-03 | University Of Maine System Board Of Trustees | Rapidly-deployable lightweight load resisting arch system |
| CN102877483A (en) * | 2012-09-11 | 2013-01-16 | 天津大学 | Foundation structure capable of being prefabricated and assembled and construction method thereof |
| CN202690082U (en) * | 2012-05-28 | 2013-01-23 | 中交第一公路勘察设计研究院有限公司 | Combined steel frame structure for preventing deformation and subsidence of tunnel |
| CN103133013A (en) * | 2013-03-24 | 2013-06-05 | 中铁二院工程集团有限责任公司 | Lining structure with rib arch-shaped open cut tunnel |
| CN203412589U (en) * | 2013-08-27 | 2014-01-29 | 安徽理工大学 | Supporting structure of extremely fractured soft rock roadway passing through geological anomaly zone |
-
2013
- 2013-08-27 CN CN201310399662.6A patent/CN103557007B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2289878Y (en) * | 1996-05-07 | 1998-09-02 | 武汉水利电力大学 | Water dilivery tunnel concrete tunnel liner tile |
| WO2006081214A2 (en) * | 2005-01-26 | 2006-08-03 | University Of Maine System Board Of Trustees | Rapidly-deployable lightweight load resisting arch system |
| CN202690082U (en) * | 2012-05-28 | 2013-01-23 | 中交第一公路勘察设计研究院有限公司 | Combined steel frame structure for preventing deformation and subsidence of tunnel |
| CN102877483A (en) * | 2012-09-11 | 2013-01-16 | 天津大学 | Foundation structure capable of being prefabricated and assembled and construction method thereof |
| CN103133013A (en) * | 2013-03-24 | 2013-06-05 | 中铁二院工程集团有限责任公司 | Lining structure with rib arch-shaped open cut tunnel |
| CN203412589U (en) * | 2013-08-27 | 2014-01-29 | 安徽理工大学 | Supporting structure of extremely fractured soft rock roadway passing through geological anomaly zone |
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