Variety rules of concrete strain of outer shaft wall were carried out based on in - situ measurement during freeze sinking of longgu mine auxiliary shaft 摘要通过龙固副井冻结凿井期现场实测，获得了龙固副井外层井壁混凝土应变的变化规律。
The study proved that tensile strain arose firstly in the outer shaft wall after it ' s building , then decreased gradually with decreasing of temperature , finally , it converted to compressive strain 研究表明：外层井壁浇筑后，混凝土首先产生拉应变，而后随井壁温度下降而逐渐减小并转变为压应变。
Cement injection of perforating holes in a frozen pipe is a wholly - new technology for consolidating shaft wall rock and stopping water of frozen shafts in coal mines 冻结管射孔注浆是在对石油输油井射孔技术和地面注浆技术进行研究的基础上，开发出的一种用于煤矿冻结井筒围岩加固和堵水的全新技术。
Abstract : cement injection of perforating holes in a frozen pipe is a wholly - new technology for consolidating shaft wall rock and stopping water of frozen shafts in coal mines 文摘:冻结管射孔注浆是在对石油输油井射孔技术和地面注浆技术进行研究的基础上，开发出的一种用于煤矿冻结井筒围岩加固和堵水的全新技术。
Based on the research progress about shaft wall fracture , some aspects are proposed for further research , including the water level of aquifer , thermal stress , quality of shaft wall , and prediction of dangerous depth of shaft wall fracture in advance , etc 摘要结合目前井壁破裂研究的状况，提出几个值得进一步研究的问题，包括含水层水位、温度应力、井壁质量及井壁破裂位置的超前预测等。
The technology , which is developed on the basis of perfora ting techniques for oil wells and cement injection techniques , can not shoot thr ough the frozen pipe wall at predetermined ground location using energy - gatheri ng - blasting techniques , but also consolidate shaft wall rock by cement injectio n and filling along the frozen pipe and perforated hole s trajectories , achievi ng leakageproof of shaft walls and reducing vertically - added force 它利用聚能射孔爆破技术，在预定地层位置将冻结管射穿，同时在地面利用冻结管及射孔弹道对特定地层进行注浆充填加固，既可实现井壁堵漏，又能减少由于地层沉降对井壁的垂直附加力。
Since groun d cement injection is conducted with no need to drill holes and cement injection of shaft wall rock is conducted with no need to damage shaft wall , the technolo gy is characterised by simple preparatory work , good safety and cost - saving , an d is a wholly new technology for leakageproof of shaft wall and sinkageproof of ground 该技术具有地面注浆不需造孔、井下围岩注浆不用破壁、准备工作简单、安全性好、节省工程费用等优点，为井下堵水并防止地层下沉造成的井壁破裂提供了一种全新的技术。
