泵送混凝土人工点柱支护工艺与实践  

ARTIFICAL PUMPCRETE PILLAR SUPPORT: TECHNOLOGY AND PRACTICE

作　　者：方理刚[1,2] 马光[1,2] 李旺春 刘仲春[1,2] 彭炳根 

机构地区：[1]长沙矿冶研究院采矿与岩土工程研究所 [2]湘西金矿

出　　处：《矿冶工程》1998年第2期9-12,16,共5页Mining and Metallurgical Engineering

摘　　要：介绍了泵送混凝土人工点柱支护工艺，并对该工艺进行了一系列可操作性试验，在湘西金矿沃溪矿区２３６４采场进行了采矿试验。试验结果表明，泵送混凝土人工点柱是水平及倾角小于３０°的薄矿体开采的理想支护手段。为了使不可泵混凝土，尤其是低水泥含量的混凝土变成可泵送混凝土，开发了一种新型混凝土泵送剂———ＣＰＡ１Ａ。对该泵送剂的各项性能指标进行的试验表明，它可显著地改善混凝土的可泵性能。The technology and practice of artifical pumpcrete pillar support is briefly introduced in this paper. The mining test was carried out using the pillars, at 2364 stope of Woxi mining district. The test results showed that the pumpcrete pillar support is an ideal support measure for thin, flatlying or dip less than 30° orebodies. In order to make unpumpable concrete, especially low cement content concrete pumpable, a new type of concrete pumping aid——CPA1A was developed. The test results of the pumping aid showed that it could significantly improve the pumpability of various concretes.

关 键 词：泵送混凝土 人工点柱 矿井支护 采矿 房柱法 

分 类 号：TD35[矿业工程—矿井建设] TD853.322