CN102787849A - Deep coal mine tunnel with pressure yielding function - Google Patents
Deep coal mine tunnel with pressure yielding function Download PDFInfo
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- CN102787849A CN102787849A CN2012103108199A CN201210310819A CN102787849A CN 102787849 A CN102787849 A CN 102787849A CN 2012103108199 A CN2012103108199 A CN 2012103108199A CN 201210310819 A CN201210310819 A CN 201210310819A CN 102787849 A CN102787849 A CN 102787849A
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Abstract
The invention discloses a deep coal mine tunnel with a pressure yielding function. The deep coal mine tunnel is provided with certain of flexibility and comprises a tunnel, a tunnel wall comprises an original lithosphere layer, a concrete lining and a foam concrete material layer with the pressure yielding function are sequentially integrally solidified from inside out on the wall of the original lithosphere layer, the concrete lining is poured on the surface of the original lithosphere layer after form of the concrete lining is erected, a plurality of steel bars with one ends exposed are embedded in the concrete lining, the foam concrete material layer with the pressure yielding function and the concrete lining are jointed together via the exposed ends of the embedded steel bars, and the foam concrete material layer after form of the foam concrete material layer is erected is poured to integrate with the concrete lining. The deep coal mine tunnel has the advantages that pressure yielding function is provided, an extensible supporting cushion layer can reduce and alleviate stress of a support, keep loading of the support to be uniform and effectively release initial elastic deformation energy of surrounding rocks. Under the standing out function of crustal stress of a deep portion, the deep coal mine tunnel has functions of dynamic load releasing and alleviating, and completeness of the tunnel can be kept.
Description
Technical field
The present invention relates to the supporting field of a kind of deep coal mine roadway, be specifically a kind of have let the deep coal mine roadway of compression functions.
Background technology
In recent years, along with the day by day increase of society to coal demand, the coal mining ability improves constantly, and mining depth constantly increases.China's coal-mine just with the speed of annual 8 ~ 12m to the deep deepening.The relevant expert estimates that in 10 years from now on, the most existing mine will progressively get into deep mining.Deep mining has brought series of new problems, as because soft rock increases, the ore deposit is pressed and increased the problems such as roof fall, end distension, bump occur frequently that cause, brings great difficulty to coal exploitation.The deep tunnel design and construction takes the original support technology in shallow workings, construction technology and quality managemant can not satisfy the needs of on-the-spot supporting requirement and mine safety production; Deep tunnel has become by the release Support and Protect Engineering Research guarantees mine safety production, realizes the important topic of maximization of economic benefit.
Summary of the invention
The objective of the invention is to overcome the weak point in the prior art; Provide a kind of simple in structure, construction rapidly, have and let the deep coal mine roadway of compression functions; It has the bed course of contractibility supporting; Alleviate and relax the stressed of support, can keep rack bearing even, and effectively discharge the initial elasticity deformation energy of country rock; In the deep during geostatic stress outstanding role, have the dynamic load release, can delay function such as pressure, keep the integrality in tunnel.
The present invention realizes with following technical scheme: a kind of have let the deep coal mine roadway of compression functions; Comprise the tunnel; Wall comprises the geological diagnostics layer, on the wall of geological diagnostics layer, has fixed successively from inside to outside for the concrete lining-up of one with have and let the foamed concrete material layer of compression functions; Described concrete lining-up is attached on the geological diagnostics aspect with template formwork after-pouring; In the concrete lining-up, preset the reinforcing bar that many one ends expose, described have let compression functions foamed concrete material layer and concrete lining-up through the built-in reinforcing bar exposed parts of concrete lining-up connect stubble be linked together; Described foamed concrete material layer props up the template after-pouring and becomes whole with the concrete lining-up.
Described have be provided with the facility of reserving the hanging tube road when letting the foamed concrete material layer of compression functions prop up template outward, have to let the thickness of foamed concrete material layer of compression functions be 250-600mm, intensity is suitable with the C10-C25 concrete.
Described foamed concrete material layer is built wall with a template after-pouring and concrete and is become whole, and its formwork thickness connects a batch exposed steel bar with concrete lining and cooperates, and the thickness of described concrete lining-up is 400-1000mm.
Described have let the foamed concrete material layer of compression functions be cement based foam concrete or gypsum base foam concrete.
The tunnel has the compression functions of letting in the coal mining of deep, the bed course of its contractibility supporting alleviates and relaxes the stressed of support, can keep rack bearing even, and effectively discharge the initial elasticity deformation energy of country rock; Under the geostatic stress outstanding role of deep, have the dynamic load release, can delay function such as pressure, keep the integrality in tunnel.
The invention has the beneficial effects as follows: adopt structure of the present invention, compare with existing part deep tunnel structure and have following advantage:
1. have to let the foamed concrete material layer of compression functions because have certain flexibility, compressibility is big, has advantages such as certain intensity, can be used as in mine laneway or the chamber support form to use, the present invention is one and well edifies.
2. in the deep during geostatic stress outstanding role, tunnel structure of the present invention has the dynamic load release, can delay functions such as pressure, can keep the integrality in tunnel.
3. tunnel structure of the present invention is compared the existing deep tunnel structure of using, and manufacture craft is uncomplicated, is prone to promote.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1-tunnel, 2-foamed concrete material layer, the lining-up of 3-concrete, 4-geological diagnostics layer, 5-reinforcing bar, 6-template.
The specific embodiment
Below in conjunction with accompanying drawing one embodiment of the present of invention are done further to describe:
As shown in Figure 1, a kind of have let the deep coal mine roadway of compression functions, wall comprises geological diagnostics layer 4, on the wall of geological diagnostics layer 4, has the fixed successively from inside to outside concrete lining-up 3 for one let the foamed concrete material layer 2 of compression functions with having; Described concrete lining-up 3 usefulness templates 6 formwork after-pourings are attached on the geological diagnostics aspect 4; In concrete lining-up 3, preset the reinforcing bar 5 that many one ends expose, described have let compression functions foamed concrete material layer 2 and concrete lining-up 3 through built-in reinforcing bar 5 exposed parts of concrete lining-up connect stubble be linked together; 2 template after-pouring of described foamed concrete material layer are whole with 3 one-tenth of concrete lining-ups; Form tunnel 1.Reinforcing bar 5 can be straight, also can be crooked, and crooked shape is unrestricted; The present embodiment angle of bend is the right angle.
Can be provided with the facility of reserving the hanging tube road when outside foamed concrete material layer 2, propping up template 6.
Have to let the thickness of foamed concrete material layer 2 of compression functions be 250-600mm, intensity is suitable with the C10-C25 concrete.
Foamed concrete material layer 2 usefulness template 6 after-pouring are whole with 3 one-tenth of concrete lining-ups, and its formwork 6 thickness connect batch exposed steel bar 5 with concrete lining-up 3 and cooperate, and the thickness of concrete lining-up 3 is 400-1000mm.Present embodiment thickness is 800mm.
Foamed concrete material layer 2 is cement based foam concrete or gypsum base foam concrete.Select for use according to designing requirement.
After the said structure combination construction was accomplished, it was used for deep coal mining, and its structure can keep rack bearing even; And effectively discharge the initial elasticity deformation energy of country rock; In the deep during geostatic stress outstanding role, have the dynamic load release, can delay function such as pressure, keep the integrality in tunnel.
Claims (4)
1. one kind has and lets the deep coal mine roadway of compression functions; Comprise tunnel (1); It is characterized in that: wall comprises geological diagnostics layer (4), on the wall of geological diagnostics layer (4), has fixed successively from inside to outside for the concrete lining-up (3) of one with have and let the foamed concrete material layer (2) of compression functions; Described concrete lining-up (3) is attached on the geological diagnostics aspect (4) with template (6) formwork after-pouring; In concrete lining-up (3), preset the reinforcing bar (5) that many one ends expose, described have let compression functions foamed concrete material layer (2) and concrete lining-up (3) through the built-in reinforcing bar of concrete lining-up (5) exposed parts connect stubble be linked together; Described foamed concrete material layer (a 2) template after-pouring becomes whole with concrete lining-up (3).
2. according to claim 1 have let the deep coal mine roadway of compression functions, it is characterized in that: described have let the thickness of foamed concrete material layer (2) of compression functions be 250-600mm, intensity is suitable with the C10-C25 concrete.
3. according to claim 1 have let the deep coal mine roadway of compression functions, it is characterized in that: the thickness of described concrete lining-up (3) is 400-1000mm;
4. according to claim 1 have let the deep coal mine roadway of compression functions, it is characterized in that: described foamed concrete material layer (2) is cement based foam concrete or gypsum base foam concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103108199A CN102787849A (en) | 2012-08-28 | 2012-08-28 | Deep coal mine tunnel with pressure yielding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103108199A CN102787849A (en) | 2012-08-28 | 2012-08-28 | Deep coal mine tunnel with pressure yielding function |
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| CN102787849A true CN102787849A (en) | 2012-11-21 |
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| CN2012103108199A Pending CN102787849A (en) | 2012-08-28 | 2012-08-28 | Deep coal mine tunnel with pressure yielding function |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630706A (en) * | 2017-10-24 | 2018-01-26 | 中交第二航务工程局有限公司 | A kind of tunnel bottom structure and construction method for eliminating highland nip tunnel inverted arch protuberance |
| CN109356623A (en) * | 2018-12-18 | 2019-02-19 | 西南交通大学 | A kind of assembled is by die mould Tunnel structure and construction method |
| CN109538247A (en) * | 2018-12-28 | 2019-03-29 | 江苏建筑职业技术学院 | It is a kind of for building the concrete filled steel tube arch of gallery supporting |
| CN111335925A (en) * | 2020-03-27 | 2020-06-26 | 莱西市辉道装备技术中心 | Coal mine safety construction method |
| WO2021203492A1 (en) * | 2020-04-08 | 2021-10-14 | 北京科技大学 | Roadway or tunnel surrounding rock shielding protection structure and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4102266C1 (en) * | 1991-01-26 | 1992-08-27 | Johannes 4130 Moers De Radtke | Multilayer resilient roadway or tunnel lining - has temporary lining reinforced by heavy duty textile fabric roller mats |
| JP2001262987A (en) * | 2000-01-11 | 2001-09-26 | Ohbayashi Corp | Construction method for isolation layer in tunnel secondary lining |
| CN101493011A (en) * | 2008-12-30 | 2009-07-29 | 中国科学院武汉岩土力学研究所 | Soft expansion type wall rock tunnel support method |
| CN101975073A (en) * | 2009-09-30 | 2011-02-16 | 王晓利 | Retractable concrete arch and anchor rod combined support system and construction method |
| CN202325548U (en) * | 2011-11-30 | 2012-07-11 | 西安科技大学 | Secondary yielding uniform pressure supporting structure of roadway surrounding rock under high ground stress |
| CN102562091A (en) * | 2012-01-30 | 2012-07-11 | 中铁七局集团有限公司 | Foam concrete shock absorbing structure of tunnel and construction method of foam concrete shock absorbing structure |
| CN202768015U (en) * | 2012-08-28 | 2013-03-06 | 江苏建筑职业技术学院 | Deep coal mine tunnel with yielding function |
-
2012
- 2012-08-28 CN CN2012103108199A patent/CN102787849A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4102266C1 (en) * | 1991-01-26 | 1992-08-27 | Johannes 4130 Moers De Radtke | Multilayer resilient roadway or tunnel lining - has temporary lining reinforced by heavy duty textile fabric roller mats |
| JP2001262987A (en) * | 2000-01-11 | 2001-09-26 | Ohbayashi Corp | Construction method for isolation layer in tunnel secondary lining |
| CN101493011A (en) * | 2008-12-30 | 2009-07-29 | 中国科学院武汉岩土力学研究所 | Soft expansion type wall rock tunnel support method |
| CN101975073A (en) * | 2009-09-30 | 2011-02-16 | 王晓利 | Retractable concrete arch and anchor rod combined support system and construction method |
| CN202325548U (en) * | 2011-11-30 | 2012-07-11 | 西安科技大学 | Secondary yielding uniform pressure supporting structure of roadway surrounding rock under high ground stress |
| CN102562091A (en) * | 2012-01-30 | 2012-07-11 | 中铁七局集团有限公司 | Foam concrete shock absorbing structure of tunnel and construction method of foam concrete shock absorbing structure |
| CN202768015U (en) * | 2012-08-28 | 2013-03-06 | 江苏建筑职业技术学院 | Deep coal mine tunnel with yielding function |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630706A (en) * | 2017-10-24 | 2018-01-26 | 中交第二航务工程局有限公司 | A kind of tunnel bottom structure and construction method for eliminating highland nip tunnel inverted arch protuberance |
| CN107630706B (en) * | 2017-10-24 | 2023-05-26 | 中交第二航务工程局有限公司 | Tunnel bottom structure for eliminating tunnel inverted arch bulge in high-earth-pressure area and construction method |
| CN109356623A (en) * | 2018-12-18 | 2019-02-19 | 西南交通大学 | A kind of assembled is by die mould Tunnel structure and construction method |
| CN109538247A (en) * | 2018-12-28 | 2019-03-29 | 江苏建筑职业技术学院 | It is a kind of for building the concrete filled steel tube arch of gallery supporting |
| CN109538247B (en) * | 2018-12-28 | 2024-04-05 | 江苏建筑职业技术学院 | Steel tube concrete arch frame for supporting building corridor |
| CN111335925A (en) * | 2020-03-27 | 2020-06-26 | 莱西市辉道装备技术中心 | Coal mine safety construction method |
| CN111335925B (en) * | 2020-03-27 | 2021-09-03 | 赤峰西拉沐沦(集团)公格营子煤业有限公司 | Coal mine safety construction method |
| WO2021203492A1 (en) * | 2020-04-08 | 2021-10-14 | 北京科技大学 | Roadway or tunnel surrounding rock shielding protection structure and method |
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Application publication date: 20121121 |