恒晉煤業(yè)9107工作面上覆老空水分析及治理

王永功

摘要：恒晉煤業(yè)9107工作面為西一采區(qū)9103工作面的接替工作面，該面傾向長(zhǎng)1564m，傾向?qū)?76m，回采可采儲(chǔ)量為189.71Mt。2012年5月15日早班，工作面推進(jìn)46m時(shí)老塘側(cè)滯后出水并逐漸增大至70 m3/h。通過(guò)水源狀態(tài)分析、小窯調(diào)查分析、水質(zhì)化驗(yàn)分析綜合技術(shù)，查清了出水水源為上覆2#煤層老空水，針對(duì)老空水采取了排水管路改道、鉆孔疏放等一系列行之有效的防治措施，確保了9107工作面安全回采。

關(guān)鍵詞：老空水;水源分析;管路改道;鉆孔疏放;防治措施

Summary：Hengjin coal industry 9107 face is the replacement face of 9103 face in West-First Mining Area. The face tends to be 1564m long and 176m wide， and the recoverable reserves are 189.71Mt. In the morning shift on May 15， 2012， when the working face was advancing 46 m， the outflow from the side of the old pond lagged behind and gradually increased to 70 m3/h. Through comprehensive technology of water source condition analysis， small kiln investigation and analysis， water quality test and analysis， it is found that the water source is old empty water in overlying 2# coal seam. A series of effective preventive measures， such as diversion of drainage pipeline， drilling and drainage， are adopted for old empty water， which ensures the safe recovery of 9107 working face.

Key words： empty water; water source analysis; pipeline diversion; borehole drainage; prevention and control measures