CN105569672A - 胶带大巷输送机机头硐室的支护方法 - Google Patents

胶带大巷输送机机头硐室的支护方法 Download PDF

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Publication number
CN105569672A
CN105569672A CN201511002450.5A CN201511002450A CN105569672A CN 105569672 A CN105569672 A CN 105569672A CN 201511002450 A CN201511002450 A CN 201511002450A CN 105569672 A CN105569672 A CN 105569672A
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China
Prior art keywords
anchor
anchor cable
investment
adhesive tape
head chamber
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CN201511002450.5A
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English (en)
Inventor
刘杰
马志胜
张江成
王爱午
杨文兵
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Datong Coal Mine Group Co Ltd
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Datong Coal Mine Group Co Ltd
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Priority to CN201511002450.5A priority Critical patent/CN105569672A/zh
Publication of CN105569672A publication Critical patent/CN105569672A/zh
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    • 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
    • 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
    • E21D11/006—Lining anchored in the rock
    • 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
    • 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
    • E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
    • E21D11/152—Laggings made of grids or nettings
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0086—Bearing plates

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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)
  • Wire Processing (AREA)

Abstract

本发明为一种胶带大巷输送机机头硐室的支护方法，首先铺设铁丝网片，然后打注锚杆和锚索，最后进行厚度200mm、强度C20的喷浆支护。采用本发明支护方法施工的工期明显的缩短，为矿井验收征得了宝贵的时间。采用本发明支护方法节约了大量的投资，与传统设计相比节约了上百万元投资。随着大型生产能力矿井陆续的增多，对施工的工期严格的要求和资金投资的控制，本发明方法解决了施工工期长、资金投资大的问题。在现有的严峻的煤炭经济形势的压力下，本发明方法必将在以后的大型矿井建设中将得到广泛的推广。

Description

胶带大巷输送机机头硐室的支护方法
技术领域
本发明涉及煤矿井下支护技术领域，具体是一种胶带大巷输送机机头硐室的支护方法。
背景技术
目前，在输送机机头硐室的施工过程中，一般采用锚网喷及锚索支护作为临时支护+钢筋混凝土砌碹支护作为永久支护，此支护方法施工工期长，资金消耗大，所以本着缩短工期，节约成本，减少投资的原则，我们急需再设计一种全新的支护方法。
发明内容
本发明的目的是为了解决上述现有技术中存在的问题，而提供一种全新的胶带大巷输送机机头硐室的支护方法。
本发明是通过如下技术方案实现的：
一种胶带大巷输送机机头硐室的支护方法，首先铺设铁丝网片，然后打注锚杆和锚索，最后进行喷浆支护；其中，打注锚杆时，锚杆规格为Φ20mm×2400mm，锚杆的间排距为800mm×800mm；打注锚索时，锚索采用规格为Φ17.8mm×7300mm的钢绞线钢体，锚索托盘规格为300mm×300mm×16mm，锚索间排距为2100mm×2400mm，锚索托梁采用11#工字钢梁，相邻两排锚索中对应的两个锚索共用一根3m长的11#工字钢梁连接，11#工字钢两端各留300mm；喷浆支护时，喷浆厚度200mm，强度C20。
经科学的理论计算及后期对巷道稳定性观察得出的结论：胶带大巷输送机机头硐室采用锚杆+铁丝网片+锚索+11#工字钢+喷浆支护作为永久支护完全可以满足安全使用条件。胶带大巷输送机机头硐室优化后巷道净断面保持不变，不影响使用，缩小了巷道掘进断面，在这种软岩地质条件下施工安全方面多了一份保障。
采用本发明支护方法施工的工期明显的缩短，为矿井验收征得了宝贵的时间。采用本发明支护方法节约了大量的投资，与传统设计相比节约了上百万元投资。随着大型生产能力矿井陆续的增多，对施工的工期严格的要求和资金投资的控制，本发明方法解决了施工工期长、资金投资大的问题。在现有的严峻的煤炭经济形势的压力下，本发明方法必将在以后的大型矿井建设中将得到广泛的推广。
附图说明
图1为本发明支护方法的硐室截面图。
图中：1-铁丝网片、2-锚杆、3-锚索、4-喷浆。
具体实施方式
以下结合附图对本发明作进一步的说明：
如图1所示，一种胶带大巷输送机机头硐室的支护方法，首先铺设铁丝网片1，然后打注锚杆2和锚索3，最后进行喷浆支护；其中，打注锚杆2时，锚杆2规格为Φ20mm×2400mm，锚杆2的间排距为800mm×800mm；打注锚索3时，锚索3采用规格为Φ17.8mm×7300mm的钢绞线钢体，锚索托盘规格为300mm×300mm×16mm，锚索3间排距为2100mm×2400mm，锚索托梁采用11#工字钢梁，相邻两排锚索3共用一根3m长的11#工字钢梁连接，11#工字钢两端各留300mm；喷浆支护时，喷浆4厚度200mm，强度C20。

Claims (1)

1.一种胶带大巷输送机机头硐室的支护方法，其特征在于：首先铺设铁丝网片（1），然后打注锚杆（2）和锚索（3），最后进行喷浆支护；其中，打注锚杆（2）时，锚杆（2）规格为Φ20mm×2400mm，锚杆（2）的间排距为800mm×800mm；打注锚索（3）时，锚索（3）采用规格为Φ17.8mm×7300mm的钢绞线钢体，锚索托盘规格为300mm×300mm×16mm，锚索（3）间排距为2100mm×2400mm，锚索托梁采用11#工字钢梁，相邻两排锚索（3）共用一根3m长的11#工字钢梁连接，11#工字钢两端各留300mm；喷浆支护时，喷浆（4）厚度200mm，强度C20。
CN201511002450.5A 2015-12-29 2015-12-29 胶带大巷输送机机头硐室的支护方法 Pending CN105569672A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180291736A1 (en) * 2016-07-08 2018-10-11 Shandong University High-strength confined concrete support system for underground tunnel
CN108915740A (zh) * 2018-06-22 2018-11-30 徐州工程学院 一种有效降低地下硐室开挖后支护成本的方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243852A1 (de) * 1982-11-26 1984-06-07 Bochumer Eisenhütte Heintzmann GmbH & Co KG, 4630 Bochum Verbundausbau
CN103195454A (zh) * 2013-04-16 2013-07-10 铜陵有色金属集团股份有限公司安庆铜矿 充填体内巷道或硐室支护方法
CN103603675A (zh) * 2013-09-20 2014-02-26 张瀚 渗水松软破碎岩层巷道支护方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243852A1 (de) * 1982-11-26 1984-06-07 Bochumer Eisenhütte Heintzmann GmbH & Co KG, 4630 Bochum Verbundausbau
CN103195454A (zh) * 2013-04-16 2013-07-10 铜陵有色金属集团股份有限公司安庆铜矿 充填体内巷道或硐室支护方法
CN103603675A (zh) * 2013-09-20 2014-02-26 张瀚 渗水松软破碎岩层巷道支护方法

Non-Patent Citations (1)

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Title
廖俊春等: "浅谈某煤矿深部巷道支护技术的应用", 《黑龙江科技信息》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180291736A1 (en) * 2016-07-08 2018-10-11 Shandong University High-strength confined concrete support system for underground tunnel
US10415387B2 (en) * 2016-07-08 2019-09-17 Shandong University High-strength confined concrete support system for underground tunnel
CN108915740A (zh) * 2018-06-22 2018-11-30 徐州工程学院 一种有效降低地下硐室开挖后支护成本的方法

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