SU969899A1 - Method of protecting an excavation working - Google Patents
Method of protecting an excavation working Download PDFInfo
- Publication number
- SU969899A1 SU969899A1 SU813299045A SU3299045A SU969899A1 SU 969899 A1 SU969899 A1 SU 969899A1 SU 813299045 A SU813299045 A SU 813299045A SU 3299045 A SU3299045 A SU 3299045A SU 969899 A1 SU969899 A1 SU 969899A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- excavation
- formwork
- protection
- quick
- strip
- Prior art date
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- Lining And Supports For Tunnels (AREA)
Description
Изобретение относитс к подзем- ной разработке пластовых месторождений , а именно к способам охраны выемочных выработок.The invention relates to underground mining of stratal deposits, and in particular to methods for protecting excavation workings.
Известен способ охраны горных выработок литыми бетонными и ангидритовыми полосами, при котором в выработанном пространстве около выемочной выработки вслед за подвиганием очистного забо возвод т литую полосу 13.There is a known method of guarding mine workings with cast concrete and anhydrite strips, in which a cast strip 13 is erected in the worked-out area near excavation workings following the advancement of the clearing hole.
Известен также способ охраны выемочной выработки, включающий установку опалубки из вертикально установленных щитов. и укладку ri нее быстротвердеющего материала 2.There is also known a method of guarding excavation making, including the installation of formwork of vertically installed shields. and laying ri ne quick-hardening material 2.
В результате образуетс полоса большой площади контакта полосы с зависгиощими породами кровли выработанного пространства, что приводит к разрушению полосы нагф жени ми , превьвиаюсцими ее -прочность, задолго до образовани трещины обрыва зависающих пород.As a result, a strip is formed of a large contact area of the strip with the sticking rocks of the roof of the open space, which leads to the destruction of the nagging strip, outweighing its strength, long before the formation of a cliff of hanging rocks.
. Цель изобретени - поилшение эффективности охраны подготовительной выработки.Поставленна цель достигаетс тем, что согласно способу охраны выемочной выработки, включающему установку опалубки и укладку в нее быстротве рдеющего материала, перед установкой опалубки возвод т перекрытие клинообразной формы, расположенное вершиной в направлении кровли извлеченного пласта.. The purpose of the invention is to increase the efficiency of the preparatory development. The objective is achieved in that according to the excavation production protection method, which includes installing the formwork and laying it with a fast-flowing material, before installing the formwork, a wedge-shaped overlay is erected in the direction of the roof of the extracted layer.
На фиг.1 показана выработка, вид в плане; на фиг.2 - разрез А-А на фиг.1.Figure 1 shows the development, a view in plan; figure 2 - section aa in figure 1.
Вначале вдоль млемочной выработки на рассто нии 0,4-0,6 м от нее в кров лю разработанного пласта вершиной устанавливаетс перекрытие 1 клиновой форкы X и раскрепл етс . Далее под перекралтием 1 возводитс опалубка 2 из щитов. В щитах опсшубки предусмотрены окна 3, в которые вставл ют сопло магистрали 4 дл нагнетани быстротвердеющего материала. В First, over the 0.4–0.6 m distance from the development of the developed reservoir, the overlapping of 1 wedge fork X is set at the top and released. Further, under the re-coating 1, formwork 2 is erected from the shields. Windows 3 are provided in the shield boards, into which the nozzle of the line 4 is inserted for injecting a quick-hardening material. AT
20 результате получаетс лита клинообразна полоса из быстротвердеющего материала. После набора материалов достаточной прочности опалубка снимаетс ,20, the result is a lithe wedge-shaped strip of fast-hardening material. After a set of materials of sufficient strength, the formwork is removed,
2525
При про йлении горного давлени кровл выработанного пространства соприкасаетс с перекрытием, выполн ющим роль ножа, вследствие чего происходит обрыв зависаиощих пород, During the development of the rock pressure of the roof of the worked-out space, it is in contact with the overlap that plays the role of a knife, as a result of which there is a breakage of the dependent rocks,
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813299045A SU969899A1 (en) | 1981-06-03 | 1981-06-03 | Method of protecting an excavation working |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813299045A SU969899A1 (en) | 1981-06-03 | 1981-06-03 | Method of protecting an excavation working |
Publications (1)
Publication Number | Publication Date |
---|---|
SU969899A1 true SU969899A1 (en) | 1982-10-30 |
Family
ID=20962221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU813299045A SU969899A1 (en) | 1981-06-03 | 1981-06-03 | Method of protecting an excavation working |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU969899A1 (en) |
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1981
- 1981-06-03 SU SU813299045A patent/SU969899A1/en active
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