PL433756A1 - Method for the protection of the rock mass in the area of planned heading crossings - Google Patents
Method for the protection of the rock mass in the area of planned heading crossingsInfo
- Publication number
- PL433756A1 PL433756A1 PL433756A PL43375620A PL433756A1 PL 433756 A1 PL433756 A1 PL 433756A1 PL 433756 A PL433756 A PL 433756A PL 43375620 A PL43375620 A PL 43375620A PL 433756 A1 PL433756 A1 PL 433756A1
- Authority
- PL
- Poland
- Prior art keywords
- injection holes
- intersection
- drilled
- planes
- pavement
- Prior art date
Links
- 239000011435 rock Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 238000002347 injection Methods 0.000 abstract 6
- 239000007924 injection Substances 0.000 abstract 6
- 239000011230 binding agent Substances 0.000 abstract 3
- 230000001154 acute effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/36—Linings or supports specially shaped for tunnels or galleries of irregular cross-section
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
Zgłoszenie dotyczy sposobu zabezpieczenia górotworu w rejonie przewidywanego skrzyżowania wyrobisk chodnikowych, znajdującego zastosowanie w górnictwie podziemnym. W trakcie prowadzenia przodka chodnika (1) przed przewidywanym skrzyżowaniem (5) z projektowanym do wykonania w przyszłości chodnikiem (4) roboty zatrzymuje się, a z linii (6) wierci się w stropie wyprzedzające otwory iniekcyjne (7) w płaszczyznach (II) równoległych do płaszczyzny pionowej (I) przechodzące przez oś wzdłużną (O1) chodnika (1), po czym zatłacza się przez nie środki wiążące pod ciśnieniem większym od wytrzymałości na ściskanie skał stropu. Po zżelowaniu środków wiążących przodek prowadzi się za skrzyżowanie (5) i dalej do miejsca przeznaczenia, a tymczasem z linii (9) za przewidywanym skrzyżowaniem (5) wierci się wsteczne otwory iniekcyjne (10) w stropie nad przewidywanym skrzyżowaniem (5). Wsteczne otwory iniekcyjne (10) wierci się w płaszczyznach (III) równoległych do płaszczyzny pionowej (I), przechodzącej przez oś wzdłużną (O1) chodnika (1), naprzemiennie z płaszczyznami (II), w których ulokowane były wyprzedzające otwory iniekcyjne (7), a po ich wykonaniu zatłacza się przez nie środki wiążące pod ciśnieniem wyższym od wytrzymałości skał stropu na ściskanie. Korzystnie wyprzedające otwory iniekcyjne (7) i wsteczne otwory iniekcyjne (10) są nachylone względem osi wzdłużnej (O1) pod kątem (α, β) ostrym, nie mniejszym od 30°, a ich długości (L1, L2) i ich rzuty (7', 10') na oś stropu (O2) są nie mniejsze od odległości (L3) między liniami (6, 9) wyznaczonymi przez ich wloty.The notification concerns the method of securing the rock mass in the area of the planned intersection of headings, which is used in underground mining. During the construction of the pavement face (1) in front of the expected intersection (5) with the pavement (4) planned for the future, the works stop and from line (6) advance injection holes (7) are drilled in the ceiling in planes (II) parallel to vertical plane (I) passing through the longitudinal axis (O1) of the gallery (1), and then binding agents are injected through them under pressure greater than the compressive strength of the roof rocks. After the binding agents have gelled, the face is led behind the intersection (5) and further to the destination, and in the meantime, from the line (9) behind the expected intersection (5), reverse injection holes (10) are drilled in the ceiling above the expected intersection (5). Reverse injection holes (10) are drilled in planes (III) parallel to the vertical plane (I), passing through the longitudinal axis (O1) of the pavement (1), alternating with planes (II) in which the leading injection holes (7) were located , and after their execution, binders are injected through them at a pressure higher than the compressive strength of the roof rocks. Preferably, the leading injection holes (7) and the reverse injection holes (10) are inclined relative to the longitudinal axis (O1) at an acute angle (α, β), not less than 30°, and their lengths (L1, L2) and their projections (7 ', 10') on the roof axis (O2) are not smaller than the distance (L3) between the lines (6, 9) defined by their inlets.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PLP.430343 | 2019-06-24 | ||
| PL43034319 | 2019-06-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL433756A1 true PL433756A1 (en) | 2020-12-28 |
| PL242838B1 PL242838B1 (en) | 2023-05-02 |
Family
ID=86184115
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL433754A PL242837B1 (en) | 2019-06-24 | 2020-04-30 | Method for the protection of the rock mass in the area of heading crossings |
| PL433758A PL242839B1 (en) | 2019-06-24 | 2020-04-30 | Method of strengthening the rock mass for the designed heading |
| PL433759A PL242840B1 (en) | 2019-06-24 | 2020-04-30 | Method of strengthening roof rocks on the longwall face advance |
| PL433756A PL242838B1 (en) | 2019-06-24 | 2020-04-30 | Method for the protection of the rock mass in the area of planned heading crossings |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL433754A PL242837B1 (en) | 2019-06-24 | 2020-04-30 | Method for the protection of the rock mass in the area of heading crossings |
| PL433758A PL242839B1 (en) | 2019-06-24 | 2020-04-30 | Method of strengthening the rock mass for the designed heading |
| PL433759A PL242840B1 (en) | 2019-06-24 | 2020-04-30 | Method of strengthening roof rocks on the longwall face advance |
Country Status (1)
| Country | Link |
|---|---|
| PL (4) | PL242837B1 (en) |
-
2020
- 2020-04-30 PL PL433754A patent/PL242837B1/en unknown
- 2020-04-30 PL PL433758A patent/PL242839B1/en unknown
- 2020-04-30 PL PL433759A patent/PL242840B1/en unknown
- 2020-04-30 PL PL433756A patent/PL242838B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL242839B1 (en) | 2023-05-02 |
| PL433754A1 (en) | 2020-12-28 |
| PL242838B1 (en) | 2023-05-02 |
| PL433758A1 (en) | 2020-12-28 |
| PL242837B1 (en) | 2023-05-02 |
| PL433759A1 (en) | 2020-12-28 |
| PL242840B1 (en) | 2023-05-02 |
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