الوصف
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.
بلد: |
China |
نموذج رقم: |
Arc Plate Net
|
سعر فوب: |
310 ~ 715 / Piece (قابل للتفاوض)
أحصل على آخر سعر
|
الموقع: |
shandong, china |
سعر الحد الأدنى للطلب: |
310 per Piece |
الحد الأدني للطلب: |
10 Piece |
تفاصيل التغليف: |
Export standard package |
موعد التسليم: |
Shipped in 3 days after payment |
القدرة على التوريد: |
10000 Piece per Month |
نوع الدفع: |
T/T |
مجموعة المنتج : |
Mining Steel Support
|