AU2014292699A1 - Temporary supporting and permanent supporting parallel operation excavating technology for crawler-type hydraulic combination bracket and equipment using same - Google Patents

Temporary supporting and permanent supporting parallel operation excavating technology for crawler-type hydraulic combination bracket and equipment using same Download PDF

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Publication number
AU2014292699A1
AU2014292699A1 AU2014292699A AU2014292699A AU2014292699A1 AU 2014292699 A1 AU2014292699 A1 AU 2014292699A1 AU 2014292699 A AU2014292699 A AU 2014292699A AU 2014292699 A AU2014292699 A AU 2014292699A AU 2014292699 A1 AU2014292699 A1 AU 2014292699A1
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AU
Australia
Prior art keywords
support
hydraulic
driving
temporary
supports
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Abandoned
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AU2014292699A
Inventor
Minghua ZHAI
Original Assignee
Zheng, Dongfeng
Zhou, Bin
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Priority to CN201310311586.9 priority Critical
Priority to CN201310311586.9A priority patent/CN103382844B/en
Application filed by Zheng, Dongfeng, Zhou, Bin filed Critical Zheng, Dongfeng
Priority to PCT/CN2014/080333 priority patent/WO2015007133A1/en
Publication of AU2014292699A1 publication Critical patent/AU2014292699A1/en
Abandoned legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor

Abstract

A temporary supporting and permanent supporting parallel operation excavating technology for a crawler-type hydraulic combination bracket and the equipment using same. The technology divides an excavating working face into a temporary supporting area (4) and a permanent supporting area (5); excavator operating area is the temporary supporting area and the permanent supporting area is arranged behind the temporary supporting area; the temporary supporting area is temporarily supported by front supporting and back returning technology for the crawler-type hydraulic combined bracket; the operation of permanent supporting and the operation of excavator (1) cutting are performed simultaneously. The technological equipment comprises two parts: a crawler-type front supporting and back returning temporary supporting hydraulic combination bracket and a moving device (2).

Description

Driving Process and Equipment Enabling Parallel Operations of Temporary Support Provided by "Crawler-type" Hydraulic Combination Support and Permanent Support 5 Field of the Invention This invention relates to a roadway support process and matching equipment that realize safe, efficient, and rapid construction of underground projects. Background of the Invention A comprehensive mechanized driving construction process for underground projects has been 10 widely promoted and applied because it is safe, reliable and considerably more efficient than the conventional blasting driving process. A cycle of the comprehensive mechanized driving construction process mainly consumes time on driving machine cutting and roadway support. It has been extensively studied at home and abroad since the 1950s on how to achieve the parallel operations of driving machine cutting and roadway support, and a lot of technologies and 15 equipment have been developed. The principal technological points involve two aspects: the rapid, safe, and reliable provision of temporary support and the parallel operations of driving machine cutting and permanent support. Temporary support is designed to prevent injuries caused by the collapse of surrounding rocks that occurs after roadway driving in order to ensure the safety of permanent support workers. Temporary 20 support is not required under such proper conditions as shallow exploration depth, high surrounding rock strength, stable and reliable self-support after excavation, simple geological structure and the like. In general, temporary support is provided for railway construction in a place near a driving end after the excavation of a roadway, and permanent support is then provided for the roadway under the protection of the temporary support. 25 At present, there are six types of temporary support means for roadways to be driven: 1. Conventional temporary support, which consists of rings and steel tubes (or rails, section steel) by using forward fleeing steel tubes (or rails, section steel) and roof protection materials to provide temporary roof support. 2. Roof support provided by driving machine rack and joist. 30 3. Driving and anchor integrated driving machine. 4. Push-and-pull or pairs of alternative walking hydraulic supports. 5. Monorail hanging timbering machine developed by Germany.
6. Temporary support of tunnel boring machines (TBM). Existing means of temporary support primarily have the following disadvantages: 1. Conventional temporary support. During forward fleeing, artificial mesh placement and upward connection of a roof material are required, so the labor intensity is high and operation under 5 suspending roof. It provides almost no support for the roof and can only supply limited protection for workers. It is often the case that workers do not use it in order to save time and escape from trouble. 2. Temporary support provided by driving machine rack and and joist. During temporary support, mesh placement operation is still under suspending roof, the support area cannot reach that of a 10 whole section. With limited strength of joint with the driving machine, the rack provides weak support. And the driving machine cannot operate simultaneously when implementing temporary support and permanent support. 3. Driving and anchor integrated driving machines. The first generation of driving anchor machines has undergone twice reforms since it was first invented in the 1960s. Although the third generation 15 of anchor and driving integration realizes the parallel operations of driving and anchoring, the empty-support distance is generally greater than 1.2-1.5 m, and support cannot catch up with the driving head. Therefore, it is only applicable for large-section rectangular or trapezoid roadways with small depths, small mining pressure and good surrounding rock conditions, and has not been widely promoted. In Germany, Poland and other countries, and most mine lots of China, which are 20 characterized by large mining depths, high mining pressure, soft and crack rock, anchor rods are densely placed, and even meshes and cables are used for support. Therefore, considerable amount of support work is required. Not only empty support distance cannot meet the requirement, the time required for support is far longer than that for cutting, thus making it difficult for support and cutting to operate simultaneously. 25 4. Push-and-pull or pairs of alternative walking hydraulic supports. A roof is supported in each cycle, which damages the roof easily and is not conducive to roof support. When a roof is in a poor condition, the driving machine must be stopped, making it impossible to realize the parallel operations of driving machine cutting and permanent support. 5. Monorail hanging timbering machine developed by Germany. This machine can provide 30 mechanized permanent support operation, and thus prevent persons from operating in an unsupported area. However, due to its complex structure and large size, this machine is only suitable for large-section roadway construction. When it is used, support and driving cutting should operate in the same area, thus interfering with each other and affecting the efficiency of parallel operations. 6. Temporary support of tunnel boring machines (TBM). Tunnel boring machines include open type, 5 double shield type, and single shield type ones. The temporary support for tunnel construction is integrated with a full-face rock tunnel boring machine. In this way of support, the support from the driving head to the roof is realized by wholly supporting, retracting, moving forward and re-supporting the surrounding rock provided by virtue of the overall length of the shield. However, repeated support can damage the surrounding rock easily. This method of support is only suitable 10 for tunnel construction with large radiuses of curvature, large sections, and good rock conditions, and tunnel boring machines get stuck easily in the case of faults and fracture zones. In order to solve above problems, this invention discloses the driving process and equipment enabling parallel operations of "crawler-type" temporary support and permanent support. Summary of the Invention 15 The invention relates to a driving process enabling parallel operations of temporary support, which is provided by a "crawler-type" hydraulic combination support, and permanent support. The driving face is first divided into a temporarily supported area and a permanently supported area. The operating area of the driving machine is the temporarily supported area, behind which is the permanently supported area. The temporarily supported area is temporarily supported by a 20 "crawler-type" hydraulic combination support through the process of supporting at the front and withdrawing at the end. Permanent support and driving machine cutting are simultaneously operated. The "crawler-type" hydraulic combination support consists of a plurality of hydraulic supports, each of which primarily includes a top beam, corner beams, a stretchable lateral support, and a hyperstatic balance oil cylinder. 25 The process of supporting at the front and withdrawing at the end mentioned above is a process in which a plurality of hydraulic supports are arranged side by side along the axial direction of a roadway to support the temporarily supported area, and the hydraulic support at the end of the temporarily supported area is withdrawn and transported to the front of the temporarily supported area to provide support as the driving machine advances, and the process is circulated in such a 30 way.
The equipment for completing this process primarily consists of a "crawler-type" hydraulic combination support, which provides support at the front and is withdrawn at the end, and a support transportation device. Each row of permanent support uses a hydraulic support, and the number of hydraulic supports is 5 determined based on the length of the temporarily supported area. Just like a track shoe which is static relative to the ground, the hydraulic supports for temporary support are timely erected as the driving machine cuts, and maintain their support for the surrounding rock to the end of the combination support all the time, thus avoiding the problem of destroying the surrounding rock due to repeated support. 10 The hydraulic supports for temporary support are retractable or foldable. A hydraulic support for temporary support cooperates with the support transportation device to avoid the driving machine and ventilation and dustproof facilities in the roadway, and is wholly transported to the front of the combination rack to provide re-support. The hydraulic supports for temporary support are in various shapes such as a rectangle, a trapezoid, 15 an arch, an arched trapezoid, or an oblique trapezoid, depending on the shape of the roadway section. The support transportation device at least consists of three systems: a system that moves forward with the driving of a roadway, a system for transportation of temporary supports, which enables temporary supports to avoid the driving machine and ventilation and dustproof facilities and 20 transports them from the end of the temporarily supported area to the front, and a system that assists in lifting and lowering temporary hydraulic supports. The support transportation devices are in four carrying forms: a driving machine rack, a moving truss, an on-rail gantry, and a self-moving rail mated with temporary supports. For the carrying form of the machine rack, the rack located on the driving machine can move 25 forward along with the forward movement of the driving machine. The driving machine is located at the inner side of the rack, so the ventilation and dustproof facilities, The system for transportation of carried supports is installed on the rack and can move a temporary support forward from the outside of the rack. In addition, an assisting system installed on the rack for lde ifting and lowering of the temporary supports is designed to assist in the lifting and lowering of the temporary supports. 30 A driving process enabling the parallel operations of temporary support, which is provided by a "crawler-type" hydraulic combination support, and permanent support, including the following steps: Step 1: Completing a step by driving machine cutting; Step 2: Moving forward one hydraulic support withdrawn from the end of the temporarily supported area by using the support transportation device to the space where to be supported; 5 Step 3: Lifting the hydraulic support to complete temporary support; Step 4: Cutting by the driving machine; Step 5: Lowering and moving the hydraulic support at the end of the temporarily supported area forward while the driving machine performs cutting; Step 6: Performing permanent support immediately as soon as the hydraulic support in the 10 temporarily supported area is moved forward; Step 7: Repeating the above steps to start the next cycle. A rapid cycling technology and implementation system for temporary support of underground fully-mechanized driving roadway described in present invention have the following characteristics: 1. The driving face is divided into a temporarily supported area (typically the operating area of a 15 driving machine, omitted below) and a permanently supported area; parallel operations of temporary support and permanent support, as well as those of permanent support and driving machine cutting have achieved. 2. The temporarily supported area is supported by a "crawler-type" hydraulic combination supports for supporting at the front and being withdrawn at the end, thus effectively solving the problem of 20 destruction of the surrounding rock caused by repeated support. 3. Temporary supports, which can be assigned a setting load based on the characteristics of the surrounding rock, can not only restrict the deformation of the surrounding rock, but also release surrounding rock stress, and therefore are adaptable to various surrounding rock conditions and roadway section shapes that are suitable for comprehensive processes of the driving machine. 25 4. The permanent support provided in the permanently supported area facilitates the parallel operations of anchor rod and anchor cable installation and the improvement in engineering quality. 5. The driving speed of roadways can be significantly increased. 6. The operating environment for workers is safe, reliable, highly automated and efficient, as well as low labor intensity. 30 Brief Description of the Drawings Figures 1-3 are drawings for the invention 1-Driving machine; 2-Support transportation device; 3-Hydraulic support; 4-Temporarily supported area; 5-Permanently supported area Detailed Description of the Embodiments The invention relates to a driving process enabling parallel operations of temporary support, which 5 is provided by a "crawler-type" hydraulic combination support, and permanent support. The driving face is first divided into a temporarily supported area (4) and a permanently supported area (5). The operating area of the driving machine is the temporarily supported area (4), behind which is the permanently supported area (5).The temporarily supported area (4) is supported by a "crawler-type" hydraulic combination support through the process of supporting at the front and withdrawing at the 10 end. Permanent support and driving machine cutting are operated simultaneously. The "crawler-type" hydraulic combination support consists of a plurality of hydraulic supports (3). The process of supporting at the front and withdrawing at the end mentioned above is a process in which a plurality of hydraulic supports (3) are arranged side by side along the axial direction of a roadway to support the temporarily supported area (4), and the hydraulic support at the end of the 15 temporarily supported area is withdrawn and transported to the front of the temporarily supported area to provide support as the driving machine (1) advances and the permanent support follows, and the process is circuited in such a way. The equipment for completing this process primarily consists of a "crawler-type" hydraulic combination support, which provides support at the front and is withdrawn at the end, and a support 20 transportation device (2). Each row of permanent support uses a hydraulic support (3), and the number of hydraulic supports is determined based on the length of the temporarily supported area. Just like a track shoe which is static relative to the ground, the hydraulic supports for temporary support are timely erected as the driving machine cuts, and maintain their support for the surrounding rock to the end of the 25 combination support all the time, thus avoiding the problem of destroying the surrounding rock due to repeated support. The hydraulic supports for temporary support are retractable or foldable. The hydraulic support (3) for temporary support cooperates with the support transportation device (2) to avoid the driving machine (1) and ventilation and dustproof facilities in the roadway, and is wholly transported to the 30 front of the combination rack to provide re-support.
The support transportation device at least consists of three systems: a system that moves forward with the driving of a roadway, a system for transportation of temporary hydraulic supports, which enables temporary supports to avoid the driving machine and ventilation and dustproof facilities and transports them from the end of the temporarily supported area to the front, and a system that assists 5 in lifting and lowering the temporary hydraulic supports. The support transportation devices are in four carrying forms: a driving machine rack, a moving truss, an on-rail gantry, and a self-moving rail mated with temporary supports. For the carrying form of the driving machine rack, the rack located on the driving machine can move forward along with the forward movement of the driving machine. The driving machine is 10 located at the inner side of the rack, so the ventilation and dustproof facilities, The system for transportation of carried supports is installed on the rack and can move a temporary support forward from the outside of the rack. In addition, an assisting system installed on the rack for lde ifting and lowering of the temporary supports is designed to assist in the lifting and lowering of the temporary supports. 15 A driving process enabling the parallel operations of temporary support, which is provided by a "crawler-type" hydraulic combination support, and permanent support, including the following steps: Step 1: Completing a step by driving machine cutting; Step 2: Moving forward one hydraulic support withdrawn from the end of the temporarily supported 20 area by using the support transportation device to the space to be supported; Step 3: Lifting the hydraulic support to complete temporary support; Step 4: Cutting by the driving machine; Step 5: Lowering and moving the hydraulic support at the end of the temporarily supported area forward while the driving machine performs cutting; 25 Step 6: Performing permanent support immediately as soon as the hydraulic support in the temporarily supported area is moved forward; Step 7: Repeating the above steps to start the next cycle.

Claims (10)

1. A driving process enabling parallel operations of temporary support, which is provided by a "crawler-type" hydraulic combination support, and permanent support, wherein the driving face is divided into a temporarily supported area (4) and a permanently supported area (5); the operating 5 area of the driving machine is the temporarily supported area (4), behind which is the permanently supported area (5); the temporarily supported area (4) is supported by a "crawler-type" hydraulic combination support through the process of supporting at the front and withdrawing at the end; and permanent support and driving machine cutting are operated simultaneously. 10
2. A driving process as claimed in claim 1, characterized in that the process of supporting at the front and withdrawing at the end is a process in which a plurality of hydraulic supports are arranged side by side along the axial direction of a roadway to support the temporarily supported area, and the hydraulic support at the end of the temporarily supported area is withdrawn and transported to the front of the temporarily supported area to provide support as the driving machine (1) advances 15 and the permanent support follows, and the process is circuited in such a way.
3. A driving process as claimed in claim 2, characterized in that the equipment for completing the process primarily consists of a "crawler-type" hydraulic combination support for providing support at the front and being withdrawn at the end and a support transportation device (2). 20
4. A driving process as claimed in claim 3, characterized in that the "crawler-type" hydraulic combination support consists of a plurality of hydraulic supports (3).
5. A driving process as claimed in claim 4, characterized in that each row of permanent support uses 25 a hydraulic support (3), and the number of hydraulic supports is determined based on the length of the temporarily supported area; and just like a track shoe which is static relative to the ground, the supports for temporary supports are timely erected as the driving machine cuts, and maintain their support for the surrounding rock to the end of the combination support all the time, thus , avoiding the problem of destroying the surrounding rock due to repeated support.
6. A driving process as claimed in claim 4, characterized in that the hydraulic supports for temporary support are retractable or foldable; a hydraulic support for temporary support (3) cooperates with the support transportation device (2) to avoid the driving machine (1) and 5 ventilation and dustproof facilities in the roadway, and is wholly transported to the front of the combination rack to provide re-support.
7. A driving process as claimed in claim 3, characterized in that the support transportation device at least consists of three systems: a system that moves forward with the driving of a roadway, a system 10 for transportation of temporary supports, which enables the temporary supports to avoid the driving machine and ventilation and dustproof facilities and transports the same from the end of the temporarily supported area to the front, and a system that assists in lifting and lowering the temporary supports. 15
8. A driving process as claimed in claim 3 or 7, characterized in that the support transportation devices are in four carrying forms: a driving machine rack, a moving truss, an on-rail gantry, and a self-moving rail mated with temporary supports.
9. A driving equipment enabling parallel operations of temporary support, which is provided by a 20 "crawler-type" hydraulic combination support, and permanent support, wherein the equipment consists of a driving machine (1), a support transportation device (2), and hydraulic supports (3); a plurality of hydraulic supports, which are stretchable or foldable, are combined to form a "crawler-type" hydraulic combination support that is used to support the temporarily supported area through the process of supporting at the front and withdrawing at the end; and the support 25 transportation device at least consists of a system that moves forward with the driving of the roadway, a system for transportation of temporary supports, and a system that assists in lifting and lowering the temporary supports.
10. A driving process enabling parallel operations of temporary support, which is provided by a 30 "crawler-type" hydraulic combination support, and permanent support, comprising the following steps: Step 1: Compelting a step by driving machine cutting; Step 2: Moving forward one hydraulic support withdrawn from the end of the temporarily supported area by using the support transportation device to the space to be supported; 5 Step 3: Lifting the hydraulic support to complete temporary support; Step 4: Cutting by the driving machine; Step 5: Lowering and moving the hydraulic support at the end of the temporarily supported area forward while the driving machine performs cutting; Step 6: Performing permanent support immediately as soon as the hydraulic support in the 10 temporarily supported area is moved forward; Step 7: Repeating the above steps to start the next cycle.
AU2014292699A 2013-07-15 2014-06-19 Temporary supporting and permanent supporting parallel operation excavating technology for crawler-type hydraulic combination bracket and equipment using same Abandoned AU2014292699A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201310311586.9 2013-07-15
CN201310311586.9A CN103382844B (en) 2013-07-15 2013-07-15 A kind of tracked hydraulic sectional shelf-unit temporary lining and permanent support parallel operations piercing technique and equipment
PCT/CN2014/080333 WO2015007133A1 (en) 2013-07-15 2014-06-19 Temporary supporting and permanent supporting parallel operation excavating technology for crawler-type hydraulic combination bracket and equipment using same

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WO (1) WO2015007133A1 (en)

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CN103758522B (en) * 2014-01-23 2015-12-30 郑东风 A kind of temporary support for drivage face method and equipment thereof
CN104179517B (en) * 2014-09-03 2017-03-15 兖矿集团有限公司 A kind of driving support system and laneway support method
CN104500116B (en) * 2014-12-15 2017-11-10 郑东风 A kind of machine-carried type auxiliary stand lift transport device
CN104675422B (en) * 2014-12-26 2016-08-24 安徽理工大学 The hydraulic means of coal mine roadway temporary support for drivage face
CN108691545B (en) * 2018-03-30 2019-06-28 张卫东 A kind of continuous tunneling construction method of bolting with wire mesh adapting to Complex Roof shape

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CN103382844A (en) 2013-11-06
WO2015007133A1 (en) 2015-01-22

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