タイトルまたは説明
Introduction of Arc Plate Net Shell Support
Supporting of soft rock
tunnel excavation has been one of the key technical problems
which affects the further development of coal industry production
and construction of our country . Deep mine ground pressure
intensity is high, under the condition of mining influence and
impact ground pressure and strata control is especially
difficult, thus support system is more and more strengthened,
such as the need to reduce the frame from u-shape set, strengthen
the link rod, and even to use U*6 steel;spray the anchor net
supporting to reinforced by steel arch, or and anchor rope
combined support, surrounding rock grouting, etc; Although this
can achieve certain supporting effect, but support cost is very
high. Therefore, China coal group design to create a new type of
flat net shell components, the main supporting characteristics of
arc plate net shell components summed up as: "while digging,
while supported edge, "before soft to hard", enough stiffness,
process simple,low price."
Characteristics of Arc Plate Net Shell Support
1,"While digging, while
supported edge",timely support
Arc Plate Net Shell Support can
use waste rock filling, grey package after wall, concrete
precast slab, such as filling, network frame and the tunnel
contour quickly close to stick, while digging, timely support,
so that on the one hand can make the support resistance of
support was able to play in time, to timely reinforce the
surrounding rock and to work under the stress state in three;
On the other hand, have the effect of slow pressure, pressure,
lead to the uniform support along the perimeter stress, is in
good working condition.
2,Arc Plate Net Shell Support
has enough "rigidity"
3,"Just moderately soft, before
soft to hard".
Arc Plate Net Shell Support
force has a complex ingredients: expansion and creep of rock
mass, reduce the strength of long, crushing of rock mass
adhesion coefficient reduced values, etc., all show the
macroscopic displacement of rock mass and any rigid support to
prevent displacement will be entirely itself in disadvantage.
Therefore, the stability of the laneway to end support, work
together to complete of the surrounding rock. Reticulated shell
scaffold, while under high in-situ stress reaction in
surrounding rock, making convergence of surrounding rock in
supporting under the control of convergence, by stent supported
edge, the edge of broken rock mass convergence pressure
unceasingly, forming a stable bearing ring, together with
stents to assume the role of in-situ stress.
The scalability of Arc Plate
Net Shell Support comes from two aspects:
(1) the contact of the spatial
grid steel supports and surrounding rock itself has certain
yielding;
(2) the junctions between the
reticulated shell scaffold piece and piece of wood
plate.
Introduction of Arc Plate Net Shell Support
Supporting of soft rock
tunnel excavation has been one of the key technical problems
which affects the further development of coal industry production
and construction of our country . Deep mine ground pressure
intensity is high, under the condition of mining influence and
impact ground pressure and strata control is especially
difficult, thus support system is more and more strengthened,
such as the need to reduce the frame from u-shape set, strengthen
the link rod, and even to use U*6 steel;spray the anchor net
supporting to reinforced by steel arch, or and anchor rope
combined support, surrounding rock grouting, etc; Although this
can achieve certain supporting effect, but support cost is very
high. Therefore, China coal group design to create a new type of
flat net shell components, the main supporting characteristics of
arc plate net shell components summed up as: "while digging,
while supported edge, "before soft to hard", enough stiffness,
process simple,low price."
Characteristics of Arc Plate Net Shell Support
1,"While digging, while
supported edge",timely support
Arc Plate Net Shell Support can
use waste rock filling, grey package after wall, concrete
precast slab, such as filling, network frame and the tunnel
contour quickly close to stick, while digging, timely support,
so that on the one hand can make the support resistance of
support was able to play in time, to timely reinforce the
surrounding rock and to work under the stress state in three;
On the other hand, have the effect of slow pressure, pressure,
lead to the uniform support along the perimeter stress, is in
good working condition.
2,Arc Plate Net Shell Support
has enough "rigidity"
3,"Just moderately soft, before
soft to hard".
Arc Plate Net Shell Support
force has a complex ingredients: expansion and creep of rock
mass, reduce the strength of long, crushing of rock mass
adhesion coefficient reduced values, etc., all show the
macroscopic displacement of rock mass and any rigid support to
prevent displacement will be entirely itself in disadvantage.
Therefore, the stability of the laneway to end support, work
together to complete of the surrounding rock. Reticulated shell
scaffold, while under high in-situ stress reaction in
surrounding rock, making convergence of surrounding rock in
supporting under the control of convergence, by stent supported
edge, the edge of broken rock mass convergence pressure
unceasingly, forming a stable bearing ring, together with
stents to assume the role of in-situ stress.
The scalability of Arc Plate
Net Shell Support comes from two aspects:
(1) the contact of the spatial
grid steel supports and surrounding rock itself has certain
yielding;
(2) the junctions between the
reticulated shell scaffold piece and piece of wood
plate.
| 国: |
China |
| モデル番号: |
Arc Plate Net
|
| 离岸价格: |
310 ~ 715 / Piece （交渉可能）
Get Latest Price
|
| ロケーション: |
shandong, china |
| 最低注文量の価格: |
310 per Piece |
| 最低注文量: |
10 Piece |
| パッケージの詳細: |
Export standard package |
| 納期: |
Shipped in 3 days after payment |
| 供給能力: |
10000 Piece per Month |
| 支払いタイプ: |
T/T |
| 製品グループ : |
Mining Steel Support
|
