A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Drilling and grouting method for multi-layer goaf
The invention belongs to the technical field of drilling of soil layers or rocks, and particularly relates to a drilling and grouting method for a multi-layer goaf. The drilling and grouting method for the multi-layer goaf comprises the following steps of: step 1, drilling a hole by adopting a first drill bit, and lowering an orifice pipe; step 2, drilling to the designed hole bottom elevation by using a second drill bit; step 3, lowering a grouting pipe, and mounting a flange plate grout stopping device on the grouting pipe; step 4, sleeving the grouting pipe with an annular air bag with the axial length of 4-6m; step 5, carrying out a water injection test on a grouting hole; step 6, carrying out single-hole grouting judgment on the grouting hole; and step 7, grouting peripheral curtain holes, grouting the grouting hole through the grouting pipe, and lifting the grouting pipe while grouting until the multi-layer goaf and gaps in rocks are filled with grout. After the method is implemented, the construction quality is good, the construction progress is fast, the construction is safe, the reliability is high, the design requirements are met, and the purposes of reinforcing a foundation and eliminating goaf subsidence are effectively achieved.
本申请属于土层或岩石的钻进技术领域，具体涉及一种多层采空区钻孔注浆方法，多层采空区钻孔注浆方法包括：第一步，采用第一钻头开孔，下孔口管；第二步，用第二钻头钻进至设计孔底标高；第三步，下注浆管，在注浆管上安装法兰盘止浆装置；第四步，在注浆管上套设轴向长度为4‑6m的环形气囊；第五步，对注浆孔进行注水试验；第六步，对注浆孔进行单孔灌注判定；第七步，对周边帷幕孔注浆，通过注浆管对注浆孔注浆，边注浆边提升注浆管，直至多层采空区及岩内空隙用浆液注满。本发明的方法实施后施工质量好，施工进度快，施工安全，可靠性高，满足设计要求，有效的达到加固地基、消除采空沉陷的目的。
Drilling and grouting method for multi-layer goaf
The invention belongs to the technical field of drilling of soil layers or rocks, and particularly relates to a drilling and grouting method for a multi-layer goaf. The drilling and grouting method for the multi-layer goaf comprises the following steps of: step 1, drilling a hole by adopting a first drill bit, and lowering an orifice pipe; step 2, drilling to the designed hole bottom elevation by using a second drill bit; step 3, lowering a grouting pipe, and mounting a flange plate grout stopping device on the grouting pipe; step 4, sleeving the grouting pipe with an annular air bag with the axial length of 4-6m; step 5, carrying out a water injection test on a grouting hole; step 6, carrying out single-hole grouting judgment on the grouting hole; and step 7, grouting peripheral curtain holes, grouting the grouting hole through the grouting pipe, and lifting the grouting pipe while grouting until the multi-layer goaf and gaps in rocks are filled with grout. After the method is implemented, the construction quality is good, the construction progress is fast, the construction is safe, the reliability is high, the design requirements are met, and the purposes of reinforcing a foundation and eliminating goaf subsidence are effectively achieved.
本申请属于土层或岩石的钻进技术领域，具体涉及一种多层采空区钻孔注浆方法，多层采空区钻孔注浆方法包括：第一步，采用第一钻头开孔，下孔口管；第二步，用第二钻头钻进至设计孔底标高；第三步，下注浆管，在注浆管上安装法兰盘止浆装置；第四步，在注浆管上套设轴向长度为4‑6m的环形气囊；第五步，对注浆孔进行注水试验；第六步，对注浆孔进行单孔灌注判定；第七步，对周边帷幕孔注浆，通过注浆管对注浆孔注浆，边注浆边提升注浆管，直至多层采空区及岩内空隙用浆液注满。本发明的方法实施后施工质量好，施工进度快，施工安全，可靠性高，满足设计要求，有效的达到加固地基、消除采空沉陷的目的。
Drilling and grouting method for multi-layer goaf
多层采空区钻孔注浆方法
CHENG ZHIWEI (author) / TANG LIZHOU (author) / GE RUNGUANG (author) / ZHAO BINGBING (author) / TAO ZHAOGANG (author) / SONG YU (author) / SUN QI (author) / WANG HUCHENG (author) / PENG HONGYAN (author)
2021-06-18
Patent
Electronic Resource
Chinese
Goaf grouting filling material and preparation method thereof
| European Patent Office | 2023
Evaluation of Grouting Effect Detection in Goaf
| Trans Tech Publications | 2013
Evaluation of Grouting Effect Detection in Goaf
| British Library Conference Proceedings | 2013
| European Patent Office | 2024