CN103557007A - Support structure passing geological abnormal zone extreme crushing soft rock tunnel and construction method of support structure - Google Patents
Support structure passing geological abnormal zone extreme crushing soft rock tunnel and construction method of support structure Download PDFInfo
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- CN103557007A CN103557007A CN201310399662.6A CN201310399662A CN103557007A CN 103557007 A CN103557007 A CN 103557007A CN 201310399662 A CN201310399662 A CN 201310399662A CN 103557007 A CN103557007 A CN 103557007A
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Abstract
The invention discloses a support structure passing a geological abnormal zone extreme crushing soft rock tunnel and a construction method of the support structure. The support structure comprises a steel plate high-strength concrete layer disposed peripherally along the inner wall of the tunnel. The steel plate high-strength concrete layer is formed by a plurality of arc-shaped single components which are sequentially connected. Each arc-shaped single component comprises a tubular body made of steel plates, and high-strength expansion concrete is filled in the inner cavity of the tubular body. The arc-shaped single components are constructed in a way that the bottoms are firstly mounted, then the two sides are mounted, and finally the tops are sealed. The support structure has the advantages that the whole circle of support can be assembled underground using number-adjustable prefabricated arc-shaped single components according to the section size of the circular tunnel, and the support structure is high in adaptability, reliable in quality, convenient to manufacture, and high in strength and support resistance.
Description
Technical field
The present invention relates to mine timbering field, be specifically related to a kind of supporting and protection structure and job practices thereof of crossing geologic anomaly band soft-rock tunnel smashed to pieces.
Background technology
When the abnormal geological bands such as tomography are crossed in coal mine deep well tunnel, due to architectonic effect, in abnormal belt, rock mass is extremely broken, loose, moisture, during driving, roadway deformation amount is too large, also have " like mud-rock flow " phenomenon, caused great difficulty and had 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 supporting and protection structure and job practices thereof of crossing geologic anomaly band soft-rock tunnel smashed to pieces of avoiding the abnormal geological band section tunnel to occur unfavorable situations such as repeatedly destroying and reprocess is provided.
A kind of supporting and protection structure of crossing geologic anomaly band soft-rock tunnel smashed to pieces, comprise the steel plate high-strength concrete layer arranging 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 member body of being made by steel plate, is filled with high-strength slightly expanded concrete in the internal cavity of described member 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 to the holdfast of member tube intracoelomic cavity direction.
Preferably,
Uniformly on the circumferencial direction of described arc monomer members offer two injected hole/holes for hoist.
Preferably,
The end face of described arc monomer members is welded with connecting angle in the radial direction, is processed with bolt hole on connecting angle.
Preferably,
The fly-ash mortar filling bed being also provided with successively between described steel plate high-strength concrete layer and tunnel inwall and U36 type support.
A job practices of crossing geologic anomaly band soft-rock tunnel smashed to pieces, concrete steps are:
One, in tunnel, set up U36 type support;
Two, on U36 type support, lay one deck harsh concrete bed course;
Three, on harsh concrete bed course, install the arc monomer members that is positioned at bottom;
Four, on two limits of bottom arc monomer members, set up the arc monomer members that is positioned at side direction;
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 finished, 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 a 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 batch production to produce 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 after the compressible backing plate by joint and wall, fly-ash mortar filling bed is realized contracting and allowed pressures, increases that to hinder characteristic good, after setting up, can carry immediately.
Method advantage of the present invention is: easy construction, the compressive strain by support with backfilling layer can reach pressure regulation effect, reduce the inhomogeneities of pressure from surrounding rock, for support provides good stress condition, is conducive to the performance of structural bearing capacity.
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.
The specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described.Should be understood that following examples are only for the present invention is described but not for limiting the scope of the invention.
Referring to Fig. 1, a kind of supporting and protection structure of crossing geologic anomaly band soft-rock tunnel smashed to pieces provided by the invention, comprise the sheath 1 arranging along tunnel inwall circumferencial direction, in the prior art, the set-up mode that props up sheath 1 adopts the mode of bolt-spary supports and metallic support supporting conventionally, can contracting quantitative limitation but be subject to surrouding rock deformation degree and self, not can solve the technical problem described in background technology.
In order to solve the problem existing at the described current known technology of this manual background technology part and to overcome its defect, 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 being connected to form successively by 6～8 arc monomer members 2, (certainly, arc monomer members quantity also can be according to actual circular tunnel section size, carry out correspondence adjustment, 6～8 arc monomer members are optimal design.) referring to Fig. 2, described arc monomer members 2 comprises the member body 2a being made by the thick steel plate of 20mm, is filled with the high-strength slightly expanded concrete 2b of C80 in the internal cavity of described member body 2a, forms steel plate high-strength concrete arc monomer members.Monomer members adopts batch production to produce on ground, reliable in quality, and concrete strength high (can reach C80～100), has rack bearing large, the advantage that supporting drag is large.
The present invention is in order further to improve its structure, and structure of the present invention in the specific implementation, can also, on above-described technical scheme basis, adopt the following examples:
Embodiment 1
Referring to Fig. 1, the cross section of described arc monomer members 2 is rectangular, and joint is provided with the compressible backing plate 3 that 20mm is thick, and realization can be contracted and be allowed pressure.
The intrados of described arc monomer members 2 and joint face place are equipped with to the holdfast 2c (length 100mm) of cavity direction in member body 2a, strengthen with concrete bonding.
Uniformly on the circumferencial direction of described arc monomer members 2 offer two injected hole/lifting hole(eyelet)s 4, facilitated underground construction lifting and grouting behind shaft or drift lining filling.
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.Reliable connection while guaranteeing down-hole assembling.
Between described steel plate high-strength concrete layer 3 and tunnel inwall, be also provided with successively fly-ash mortar filling bed 5 and the U36 type support 6 of 200mm.Can effectively improve bearing strength of the present invention and reliability.
The present invention also provides this its job practices of crossing geologic anomaly band soft-rock tunnel smashed to pieces, and concrete steps are:
One, U36 type support 6 is set up in tunnelling after it meets design section size;
Two, on U36 type support 6, lay one deck harsh concrete bed course;
Three, on harsh concrete bed course, install the arc monomer members 2 that is positioned at bottom;
Four, on two limits of bottom arc monomer members 2, set up the arc monomer members 2 that is positioned at side direction;
Five, between arc monomer members 2 tops of two side direction, be positioned at the arc monomer members 2 on top;
Six, after circle arc monomer members 2 installations finish, adopt pulp shooting machine to spray fillers 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 to place a compressible backing plate 3.
Claims (10)
1. a supporting and protection structure of crossing geologic anomaly band soft-rock tunnel smashed to pieces, it is characterized in that: comprise the steel plate high-strength concrete layer arranging 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 member body of being made by steel plate, is filled with high-strength slightly expanded concrete in the internal cavity of described member body.
2. the supporting and protection structure of crossing geologic anomaly band soft-rock tunnel smashed to pieces according to claim 1, is characterized in that: described arc monomer members quantity is 6～8.
3. the supporting and protection structure of crossing geologic anomaly band 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 supporting and protection structure of crossing geologic anomaly band soft-rock tunnel smashed to pieces according to claim 1, is characterized in that: described arc monomer members joint is provided with compressible backing plate.
5. according to the supporting and protection structure of crossing geologic anomaly band soft-rock tunnel smashed to pieces described in claim 1,2,3 or 4, it is characterized in that: the intrados of described arc monomer members and joint face place are equipped with to the holdfast of member tube intracoelomic cavity direction.
6. according to the supporting and protection structure of crossing geologic anomaly band soft-rock tunnel smashed to pieces described in claim 1,2,3 or 4, it is characterized in that: uniformly on the circumferencial direction of described arc monomer members offer two injected hole/holes for hoist.
7. according to the supporting and protection structure of crossing geologic anomaly band soft-rock tunnel smashed to pieces described in claim 1,2,3 or 4, it is characterized in that: the end face of described arc monomer members is welded with connecting angle in the radial direction, on connecting angle, be processed with bolt hole.
8. according to the supporting and protection structure of crossing geologic anomaly band soft-rock tunnel smashed to pieces described in claim 1,2,3 or 4, it is characterized in that: the fly-ash mortar filling bed being also provided with successively between described steel plate high-strength concrete layer and tunnel inwall and U36 type support.
9. cross a job practices for geologic anomaly band 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, lay one deck harsh concrete bed course;
(3), on harsh concrete bed course, install the arc monomer members that is positioned at bottom;
(4), on two limits of bottom arc monomer members, set up the arc monomer members that is positioned at side direction;
(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 finish, adopt pulp shooting machine to spray filler to fly-ash mortar filling bed, form integer support structure.
10. a kind of job practices of crossing geologic anomaly band soft-rock tunnel smashed to pieces according to claim 9, is characterized in that: the joint of the arc monomer members in step 3 to five is also placed with a compressible backing plate.
Priority Applications (1)
| 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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| CN103557007A true CN103557007A (en) | 2014-02-05 |
| CN103557007B CN103557007B (en) | 2015-10-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912292A (en) * | 2014-04-23 | 2014-07-09 | 辽宁工程技术大学 | Fault-passing roadway waterproof damping and shock-resisting coupling support method |
| CN104895580A (en) * | 2015-05-14 | 2015-09-09 | 张晓德 | Soft rock roadway surrounding rock self-support method and support stirring injection drilling machine |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912292A (en) * | 2014-04-23 | 2014-07-09 | 辽宁工程技术大学 | Fault-passing roadway waterproof damping and shock-resisting coupling support method |
| CN104895580A (en) * | 2015-05-14 | 2015-09-09 | 张晓德 | Soft rock roadway surrounding rock self-support method and support stirring injection drilling machine |
| 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 |
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| CN103557007B (en) | 2015-10-21 |
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