CN114991831A - Raise-rope-channel combined layered construction method for elevator shaft machine room chamber - Google Patents
Raise-rope-channel combined layered construction method for elevator shaft machine room chamber Download PDFInfo
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- CN114991831A CN114991831A CN202210652745.0A CN202210652745A CN114991831A CN 114991831 A CN114991831 A CN 114991831A CN 202210652745 A CN202210652745 A CN 202210652745A CN 114991831 A CN114991831 A CN 114991831A
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- chamber
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- raise
- elevator shaft
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- 238000010276 construction Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000004575 stone Substances 0.000 claims abstract description 11
- 238000005553 drilling Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000002893 slag Substances 0.000 claims abstract description 6
- 239000004567 concrete Substances 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000010878 waste rock Substances 0.000 claims description 5
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 claims description 2
- 239000011378 shotcrete Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- 230000009193 crawling Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D13/00—Large underground chambers; Methods or apparatus for making them
-
- 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
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- 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
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/04—Transport of mined material in gravity inclines; in staple or inclined shafts
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a raise-rope passage combined layered construction method of an elevator shaft machine room, which comprises the steps of firstly determining the length, the width and the height of the machine room and a hoisting sheave chamber and the arch height of the chamber according to the construction requirements of an elevator shaft, then adopting a raise drilling machine to construct a vertical raise to the lower side of the arch part of the hoisting sheave chamber, then determining the opening position and the length of a rope passage, and penetrating the rope passage and the raise after the rope passage is dug to the lower side of the arch part of the hoisting sheave chamber; personnel, materials and machinery enter the raise through a rope way, and the hoisting sheave chamber and the machine room chamber are blasted and expanded from top to bottom; the rope ballast stone naturally slides down to the elevator shaft to be connected after being blasted; the head sheave chamber and the machine room chamber slag stones freely fall down in the raise; and finally, permanently supporting the head sheave chamber and the machine room chamber. The invention has the characteristics of simple construction procedure, convenient slag discharge, safety, environmental protection and good ventilation effect, can shorten the construction period, reduce the construction cost and has lower safety risk.
Description
Technical Field
The invention relates to the field of mine construction, in particular to a raise-rope passage combined layered construction method for an elevator shaft machine room.
Background
The elevartor shaft is the device that construction often used is built to modern ore deposit, and when the construction of elevartor shaft computer lab chamber, require to excavate great space in the underground, solve the tunnelling and the problem of strutting of elevartor shaft computer lab chamber and become the technical difficult point of current mine construction.
The conventional machine room chamber tunneling method is generally classified into four types, i.e., a full-face construction method, a step construction method, a pilot tunnel construction method, and a ore-sliding method, according to the degree of stability of the surrounding rock of the chamber and the size of the excavation dimension. In the actual construction process, the single use of a certain construction method has certain limitations. For the underground chamber of a large-section machine room, the construction difficulty is high due to a single construction method, the danger coefficient is high, and the construction efficiency is low.
Disclosure of Invention
In order to solve the technical problems, the invention provides the raise-rope-channel combined type layered construction method of the elevator shaft machine room chamber, which is simple to operate and high in construction efficiency.
The technical scheme for solving the technical problems is as follows: a raise-rope path combined layered construction method for a room of an elevator shaft machine room comprises the following steps:
a. determining the length, width, height and chamber arch height of the machine room chamber and the head sheave chamber according to the construction requirements of the elevator shaft;
b. at the central position of the head sheave chamber, a vertical head sheave is constructed from the bottom of the machine room chamber to the lower side of the arch part of the head sheave chamber by adopting a head sheave drilling machine in the normal direction;
c. determining the opening position and the length of the rope path according to the heights of the machine room chamber and the head sheave chamber and the angle of the rope path and the elevator shaft connecting path;
d. after digging to the lower side of the arch part of the chamber of the hoisting sheave, the rope channel is communicated with the shaft;
e. personnel, materials and machinery enter the raise through a rope way, and the hoisting sheave chamber and the machine room chamber are blasted and expanded from top to bottom; the rope ballast stones naturally slide down to the elevator shaft connecting passage after being blasted; the head sheave chamber and the machine room chamber slag stones freely fall down in the raise;
f. temporary support is adopted when the head sheave chamber, the machine room chamber and the rope way are constructed;
g. and carrying out permanent support on the head sheave chamber and the machine room chamber.
In the step a, the elevator shaft is excavated and layered into two chambers, namely a head sheave chamber and a machine room chamber, the head sheave chamber is used for installing a head sheave platform, the machine room chamber is an elevator shaft hoisting machine equipment installation chamber, and the width of the head sheave chamber is the same as the distance between the elevator shaft and is smaller than the length of the machine room chamber.
In the step b, 5 pile hanging holes are drilled in the ceiling of the shaft at the position of the shaft top plate before the beginning of tunneling, 4 pile hanging holes are used for erecting the next operation platform and hanging the ladder stand, and the other pile hanging hole is used for hanging an operation personnel safety belt and an air-water pipe.
In the step c, the opening position of the rope way is determined by the formula (1):
the length of the rope channel is determined by the formula (2):
hthe vertical distance from the vault of the head sheave chamber to the vault of the elevator shaft connecting passage is defined;ais an included angle between the rope passage and the elevator shaft connecting passage,Lthe length of the rope path is the length of the rope path,Lsthe horizontal distance from the vertical projection point of the ceiling of the sky wheel chamber arch on the arch top of the elevator shaft connecting passage to the opening position of the rope passage is determined.
In the step d, hanging piles are driven at the side of the rope way and are used for fixing steel pipes, and a crawling ladder or a steel wire mesh platform is hung on the steel pipes and is used for standing people and supporting air drilling air legs.
In the step e, the blasted ballast stones are shoveled into the waste rock ore bin by a forklift, shoveled into the chute by a loader and lifted to the ground by a skip.
In the step f, when the hoisting sheave chamber, the machine room chamber and the rope channel are constructed, anchor-spraying concrete support is adopted, the anchor rod is a pipe seam anchor rod or a mortar anchor rod, the anchor rod is exposed by 200-300 mm, and the concrete is used as stable concrete after being poured to prevent the concrete from sinking when the chamber is tunneled downwards.
According to the combined layered construction method of the patio and the rope path of the elevator shaft machine room, the permanent support in the step g is divided into two sections, wherein in the first section, after the patio chamber is driven in place, a concrete conveying pipe is arranged along the rope path, and the patio chamber is subjected to permanent concrete support; and in the second section, after the machine room chamber is expanded and brushed in place, the concrete conveying pipe enters along a ingate of the machine room chamber from bottom to top in a segmented supporting mode, and the machine room chamber is permanently supported.
The invention has the beneficial effects that: the method comprises the steps of firstly determining the length, the width and the height of a machine room chamber and a hoisting sheave chamber and the chamber arch height according to the construction requirements of an elevator shaft, then constructing a vertical hoisting shaft from the bottom of the machine room chamber to the lower side of the hoisting sheave chamber arch part at the central position of the hoisting sheave chamber by adopting a hoisting sheave drilling machine, then determining the opening position and the length of a rope channel according to the height of the machine room chamber and the hoisting sheave chamber and the angle of the rope channel connected with the elevator shaft, and penetrating the rope channel and the hoisting sheave after the rope channel is dug to the lower side of the hoisting sheave chamber arch part; personnel, materials and machinery enter the raise through a rope way, and the hoisting sheave chamber and the machine room chamber are blasted and expanded from top to bottom; the rope ballast stones naturally slide down to the elevator shaft connecting passage after being blasted; the head sheave chamber and the machine room chamber slag stones freely fall down in the raise; and finally, adopting temporary support to permanently support the hoisting sheave chamber and the machine room chamber when the hoisting sheave chamber, the machine room chamber and the rope way are constructed. The invention has the characteristics of simple construction procedure, convenient slag discharge, safety, environmental protection and good ventilation effect, can shorten the construction period, reduce the construction cost, has lower safety risk, ensures the quality and safety of the construction of the machine room chamber of the elevator shaft, reduces the construction cost of the machine room chamber, and has important practical significance for mine construction.
Drawings
FIG. 1 is a schematic view of the construction of the present invention.
FIG. 2 is a schematic cross-sectional view of the construction of the present invention.
Fig. 3 is a schematic view of a patio-ropeway platform.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1 to 3, a raise-rope passage combined type layered construction method for an elevator shaft machine room comprises the following steps:
a. the length, width, height and chamber arch height of the machine room chamber 4 and the head sheave chamber 1 are determined according to the construction requirements of the elevator shaft.
The elevator shaft is excavated and layered into two chambers, namely a head sheave chamber 1 and a machine room chamber 4, wherein the head sheave chamber 1 is used for mounting a head sheave platform, the machine room chamber 4 is an elevator shaft elevator equipment mounting chamber, and the width of the head sheave chamber 1 is the same as the distance between the elevator shaft and a shaft 3 and is smaller than the length of the machine room chamber 4. The machine room chamber 4 is tunneled with the height of 11.05m, the width of 5.1m and the length of 7.2 m; the chamber of the pulley is 1 with height of 7m, width of 5.1m, length of 3.8m and arch height of 2.5 m.
b. And a vertical raise 2 is constructed from the bottom of the machine room chamber 4 to the lower side of the arch part of the hoisting sheave chamber 1 by adopting a raise drilling machine in the central position of the hoisting sheave chamber 1.
Before the tunneling starts, 5 pile hanging holes are drilled in the roof 2 of the raise to the rock walls on the periphery, 4 of the pile hanging holes are used for erecting the next operation platform and hanging the ladder, and the other pile hanging hole is used for hanging an operation personnel safety belt and an air water pipe.
c. And determining the opening position and the length of the rope path 5 according to the heights of the machine room chamber 4 and the head sheave chamber 1 and the angle between the rope path 5 and the elevator shaft connecting path 6.
The opening position of the rope passage 5 is determined by equation (1):
the length of the rope channel 5 is determined by equation (2):
hthe vertical distance from the vault of the head sheave chamber 1 to the vault of the elevator shaft connecting passage 6 is defined;ais the included angle between the rope channel 5 and the elevator shaft connecting channel 6,Lsthe horizontal distance from the vertical projection point of the vault of the overhead sheave chamber 1 at the vault of the elevator shaft connecting passage 6 to the opening position of the rope passage is shown.
The width of the rope passage 5 is 3.5m, the height is 3m, the arch height is 1.2m, and the vertical distance from the arch top of the head pulley chamber 1 to the arch top of the elevator shaft connecting passage 6hThe particle size of the nano-particles is 15.05m,
the length L of the rope passage 5 is 21.67m, and the horizontal distance from the opening position of the rope passage to the vertical projection point of the vault of the head pulley chamber 1 at the vault of the elevator shaft connecting passage 6LsIt was 15.58 m.
d. The rope path 5 is dug to the lower side of the arch part of the pulley chamber 1 and then runs through the rope path 5 and the patio 2.
5 banners of the rope way are drilled with piles and hung on the steel pipes, and the steel pipes are hung with crawling ladders or steel wire mesh platforms for standing people and supporting pneumatic drilling legs.
e. Personnel, materials and machinery enter the patio 2 through the rope path 5, and the hoisting sheave chamber 1 and the machine room chamber 4 are blasted and expanded from top to bottom; the rope path 5 ballast stones naturally slide down to the elevator shaft connecting passage 6 after blasting; the hoisting sheave chamber 1 and the machine room chamber 4 have ballast stones falling freely in the hoisting shaft 2.
And shoveling the blasted ballast into a waste rock ore bin by using a forklift, shoveling the waste rock ore bin to a chute by using a loader, and lifting the waste rock ore bin to the ground by using a skip.
f. When the head sheave chamber 1, the machine room chamber 4 and the rope channel 5 are constructed, anchor spraying concrete support of 70mm is adopted, anchor rods of phi 40mm and phi 2m pipe seam or phi 20mm and phi 2m mortar are adopted, the anchor rods are exposed by 200 mm-300 mm, and the concrete serves as stable concrete after being poured to prevent the concrete from sinking when the chamber is tunneled downwards. Before spraying concrete, the rock surface must be cleaned, the float gangue is cleaned, and the spraying is uniform. The materials are mixed according to the mixing proportion strictly, the concrete spraying strength meets the design requirement, and the spraying thickness meets the design requirement.
g. And permanently supporting the head sheave chamber 1 and the machine room chamber 4.
The permanent support is divided into two sections, wherein in the first section, after the head sheave chamber 1 is tunneled in place, a concrete conveying pipe is arranged along the rope path 5 to carry out permanent concrete support on the head sheave chamber 1; in the second section, after the machine room chamber 4 is expanded and brushed in place, the concrete conveying pipe enters along a ingate of the machine room chamber 4 from bottom to top in a segmented supporting mode, and the machine room chamber 4 is permanently supported.
Claims (8)
1. A raise-rope path combined type layered construction method for a room of an elevator shaft machine room is characterized by comprising the following steps:
a. determining the length, width, height and chamber arch height of the machine room chamber and the head sheave chamber according to the construction requirements of the elevator shaft;
b. at the central position of the head sheave chamber, a vertical head sheave is constructed from the bottom of the machine room chamber to the lower side of the arch part of the head sheave chamber by adopting a head sheave drilling machine in the normal direction;
c. determining the opening position and the length of the rope path according to the heights of the machine room chamber and the head sheave chamber and the angle of the rope path and the elevator shaft connecting path;
d. after digging to the lower side of the crown of the pulley chamber, the rope channel is communicated with the raise;
e. personnel, materials and machinery enter the raise through a rope way, and the hoisting sheave chamber and the machine room chamber are blasted and expanded from top to bottom; the rope ballast stones naturally slide down to the elevator shaft connecting passage after being blasted; the head sheave chamber and the slag stones of the machine room chamber freely fall in the raise;
f. temporary support is adopted when the hoisting sheave chamber, the machine room chamber and the rope way are constructed;
g. and carrying out permanent support on the head sheave chamber and the machine room chamber.
2. The method of claim 1 wherein in step a, the hoistway excavation is divided into two chambers, a head sheave chamber and a machine room chamber, the head sheave chamber is used to mount the head sheave platform, the machine room chamber is a hoistway elevator equipment mounting chamber, and the width of the head sheave chamber is the same as the hoistway shaft spacing and is less than the machine room chamber length.
3. The method as claimed in claim 1, wherein in step b, 5 pile hanging holes are drilled in the ceiling of the hoistway at the position of the ceiling, 4 of which are used for setting up the next working platform and hanging the ladder, and the other pile hanging hole is used for hanging the safety belt and the wind pipe of the worker.
4. The raise-rope-passage combined type story building method of elevator shaft machine room of claim 1, wherein in said step c, the opening position of said rope passage is determined by formula (1):
the length of the rope channel is determined by the formula (2):
hthe vertical distance from the vault of the overhead sheave chamber to the vault of the elevator shaft connecting passage is defined;ais an included angle between the rope passage and the elevator shaft connecting passage,Lthe length of the rope path is the length of the rope path,Lsthe horizontal distance from the vertical projection point of the crown of the pulley chamber on the crown of the elevator shaft connecting passage to the opening position of the rope passage is determined.
5. The method as claimed in claim 1, wherein in step d, the sides of the rope path are provided with piles for fixing steel pipes, and the steel pipes are provided with ladders or steel wire mesh platforms for standing people and supporting pneumatic drilling legs.
6. The method of claim 1, wherein in step e, the blasted ballast is shoveled into a waste rock bin with a forklift, shoveled into a chute with a loader, and lifted to the ground with a skip.
7. The raise-rope combined type layered construction method of the elevator shaft machine room chamber as claimed in claim 1, wherein in the step f, when the hoisting sheave chamber, the machine room chamber and the rope passage are constructed, a shotcrete support is adopted, a tube seam anchor rod or a mortar anchor rod is adopted as the anchor rod, the anchor rod is exposed by 200 mm-300 mm, and after the concrete is poured, the concrete is used as stable concrete to prevent the concrete from sinking when the chamber is tunneled downwards.
8. The raise-rope-combined layered construction method of an elevator shaft machine room according to claim 1, wherein the permanent support in the step g is divided into two sections, the first section is a permanent concrete support for the raise sheave chamber by arranging a concrete conveying pipe along the rope passage after the raise sheave chamber is driven in place; and in the second section, after the machine room chamber is expanded and brushed in place, the concrete conveying pipe enters along a ingate of the machine room chamber from bottom to top in a segmented supporting mode, and the machine room chamber is permanently supported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210652745.0A CN114991831A (en) | 2022-06-10 | 2022-06-10 | Raise-rope-channel combined layered construction method for elevator shaft machine room chamber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210652745.0A CN114991831A (en) | 2022-06-10 | 2022-06-10 | Raise-rope-channel combined layered construction method for elevator shaft machine room chamber |
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| CN114991831A true CN114991831A (en) | 2022-09-02 |
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| CN202210652745.0A Pending CN114991831A (en) | 2022-06-10 | 2022-06-10 | Raise-rope-channel combined layered construction method for elevator shaft machine room chamber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116537862A (en) * | 2023-02-22 | 2023-08-04 | 武汉科技大学 | Ventilation method for common support tunneling courtyard for preventing gun smoke poisoning |
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2022
- 2022-06-10 CN CN202210652745.0A patent/CN114991831A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116537862A (en) * | 2023-02-22 | 2023-08-04 | 武汉科技大学 | Ventilation method for common support tunneling courtyard for preventing gun smoke poisoning |
| CN116537862B (en) * | 2023-02-22 | 2024-04-16 | 武汉科技大学 | Ventilation method for common support tunneling courtyard for preventing gun smoke poisoning |
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