A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Hole filling method in karst area slope anchor cable drilling hole forming
The invention provides a karst area slope anchor cable drilling hole-forming hole encountering hole filling method which comprises the following steps: when a karst area excavates slope anchor cable drilling, encountering a hole, combining unfavorable geological conditions, utilizing in-hole camera shooting to detect the position and the scale of the hole, and estimating the volume of cement foam concrete and the grouting depth required by hole backfilling; the cement foam concrete is prepared by mixing the following raw materials: 200 to 300 kg of cement, 300 to 800 kg of fine sand, 20 to 40 kg of a foaming agent and 10 to 20 kg of a shrinkage compensation agent. The foaming agent is fully foamed by a foaming machine and then is mixed with the cement mortar for later use, and the density of the cement foam concrete is 500-1200kg/m < 3 >; a grouting pipe is inserted into the anchor cable hole, the position, 300-500 mm away from the hole, of a grout outlet of the grouting pipe is inserted into the anchor cable hole, a grout stop plug is arranged at the position 300 mm away from the grout outlet pipe opening, a foaming machine is communicated with the grouting pipe, cement foam concrete to be used is prepared and conveyed to the hole through the grouting pipe by means of a pumping system of the foaming machine for backfilling, grouting operation is stopped according to the pumping pressure and the grout returning condition of a grout returning pipe, and grouting operation is completed at a time.
本发明提供了一种岩溶区边坡锚索钻进成孔遇孔洞填塞方法，包括以下步骤：在岩溶区开挖边坡锚索钻进时，遇孔洞，结合不良地质情况，利用孔内摄像探测孔洞的位置、孔洞规模，预估孔洞回填所需水泥泡沫混凝土方量、注浆深度；水泥泡沫混凝土由以下原料混合而成：水泥200～300kg，细砂300～800kg，发泡剂20～40kg，收缩补偿剂10～20kg。通过发泡机将发泡剂充分发泡后与水泥砂浆混合待用，水泥泡沫混凝土其密度为500～1200kg/m3；锚索孔内插入注浆管出浆口距孔洞300～500mm处，距出浆管口300mm处安置止浆塞，将发泡机连通注浆管，配制待用的水泥泡沫混凝土经过发泡机的泵送系统经注浆管输送至孔洞进行回填，根据泵送压力、返浆管返浆情况停止灌浆作业，一次性完成注浆作业。
Hole filling method in karst area slope anchor cable drilling hole forming
The invention provides a karst area slope anchor cable drilling hole-forming hole encountering hole filling method which comprises the following steps: when a karst area excavates slope anchor cable drilling, encountering a hole, combining unfavorable geological conditions, utilizing in-hole camera shooting to detect the position and the scale of the hole, and estimating the volume of cement foam concrete and the grouting depth required by hole backfilling; the cement foam concrete is prepared by mixing the following raw materials: 200 to 300 kg of cement, 300 to 800 kg of fine sand, 20 to 40 kg of a foaming agent and 10 to 20 kg of a shrinkage compensation agent. The foaming agent is fully foamed by a foaming machine and then is mixed with the cement mortar for later use, and the density of the cement foam concrete is 500-1200kg/m < 3 >; a grouting pipe is inserted into the anchor cable hole, the position, 300-500 mm away from the hole, of a grout outlet of the grouting pipe is inserted into the anchor cable hole, a grout stop plug is arranged at the position 300 mm away from the grout outlet pipe opening, a foaming machine is communicated with the grouting pipe, cement foam concrete to be used is prepared and conveyed to the hole through the grouting pipe by means of a pumping system of the foaming machine for backfilling, grouting operation is stopped according to the pumping pressure and the grout returning condition of a grout returning pipe, and grouting operation is completed at a time.
本发明提供了一种岩溶区边坡锚索钻进成孔遇孔洞填塞方法，包括以下步骤：在岩溶区开挖边坡锚索钻进时，遇孔洞，结合不良地质情况，利用孔内摄像探测孔洞的位置、孔洞规模，预估孔洞回填所需水泥泡沫混凝土方量、注浆深度；水泥泡沫混凝土由以下原料混合而成：水泥200～300kg，细砂300～800kg，发泡剂20～40kg，收缩补偿剂10～20kg。通过发泡机将发泡剂充分发泡后与水泥砂浆混合待用，水泥泡沫混凝土其密度为500～1200kg/m3；锚索孔内插入注浆管出浆口距孔洞300～500mm处，距出浆管口300mm处安置止浆塞，将发泡机连通注浆管，配制待用的水泥泡沫混凝土经过发泡机的泵送系统经注浆管输送至孔洞进行回填，根据泵送压力、返浆管返浆情况停止灌浆作业，一次性完成注浆作业。
Hole filling method in karst area slope anchor cable drilling hole forming
岩溶区边坡锚索钻进成孔遇孔洞填塞方法
XU HONGLIANG (author) / WANG ZHEYING (author) / WANG HUIZHEN (author) / LI ZHENMIN (author) / ZHANG JINGCHENG (author) / WANG HONGZHI (author) / WANG ZHENQUAN (author) / WANG XUEZHI (author) / HUANG GUANGMING (author) / LI XIMING (author)
2023-05-05
Patent
Electronic Resource
Chinese
Rotary drilling rig hole forming method for large-sized pile hole in karst area
| European Patent Office | 2020
Fracture developed high rock slope anchor cable hole forming accurate control method
| European Patent Office | 2021
Anchor cable hole collapse prevention structure and drilling method
| European Patent Office | 2024
ANCHOR HOLE DRILLING POSITION MANAGEMENT SYSTEM AND ANCHOR HOLE DRILLING POSITION MANAGEMENT METHOD
| European Patent Office | 2019