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A platform for research: civil engineering, architecture and urbanism
Construction method for reducing loss of super-long anchor cable grouting slurry in fractured stratum
The invention discloses a construction method for reducing the loss of super-long anchor cable grouting slurry in a fractured stratum, which comprises the following steps of: 1, calculating the doping ratio of water glass relative to cement slurry according to the length of an anchor cable hole; adding the water glass into the cement paste according to the doping ratio, and stirring and mixing to form double-liquid paste; secondly, double-liquid slurry is injected into the anchor cable hole through a grouting pipe by means of grouting equipment, and when returned clear water or diluted double-liquid slurry appears at the position of an anchor cable hole opening, injection of the double-liquid slurry is stopped; and 3, according to the parameters of the anchoring section of the anchor cable, the using amount of pure cement paste is calculated, the pure cement paste is poured into the anchor cable hole through grouting equipment, and grouting construction is completed. According to the construction method, abnormal loss of grout can be avoided, the problem that the grouting amount of the super-long anchor cable in the fractured stratum is abnormal is well solved, it can be guaranteed that the anchoring force of the anchor cable is not lost, and the stress requirement of the anchor cable is met.
本发明公开了一种降低破碎地层超长锚索注浆浆液损耗的施工方法，包括以下步骤：步骤一、根据锚索孔的长度，计算水玻璃相较于水泥浆的掺入比；根据掺入比，将水玻璃加入到水泥浆内搅拌混合形成双液浆；步骤二、利用注浆设备，通过注浆管向锚索孔内注入双液浆，待锚索孔孔口处出现返清水或稀释的双液浆时，停止注入双液浆；步骤三、根据锚索锚固段参数，计算纯水泥浆用量，利用注浆设备向锚索孔内灌注纯水泥浆，注浆施工完成。本发明的施工方法即可以避免浆液异常损耗，很好地解决了破碎地层超长锚索注浆量异常的问题，又可以确保锚索锚固力不受损失，满足锚索受力要求。
Construction method for reducing loss of super-long anchor cable grouting slurry in fractured stratum
The invention discloses a construction method for reducing the loss of super-long anchor cable grouting slurry in a fractured stratum, which comprises the following steps of: 1, calculating the doping ratio of water glass relative to cement slurry according to the length of an anchor cable hole; adding the water glass into the cement paste according to the doping ratio, and stirring and mixing to form double-liquid paste; secondly, double-liquid slurry is injected into the anchor cable hole through a grouting pipe by means of grouting equipment, and when returned clear water or diluted double-liquid slurry appears at the position of an anchor cable hole opening, injection of the double-liquid slurry is stopped; and 3, according to the parameters of the anchoring section of the anchor cable, the using amount of pure cement paste is calculated, the pure cement paste is poured into the anchor cable hole through grouting equipment, and grouting construction is completed. According to the construction method, abnormal loss of grout can be avoided, the problem that the grouting amount of the super-long anchor cable in the fractured stratum is abnormal is well solved, it can be guaranteed that the anchoring force of the anchor cable is not lost, and the stress requirement of the anchor cable is met.
本发明公开了一种降低破碎地层超长锚索注浆浆液损耗的施工方法，包括以下步骤：步骤一、根据锚索孔的长度，计算水玻璃相较于水泥浆的掺入比；根据掺入比，将水玻璃加入到水泥浆内搅拌混合形成双液浆；步骤二、利用注浆设备，通过注浆管向锚索孔内注入双液浆，待锚索孔孔口处出现返清水或稀释的双液浆时，停止注入双液浆；步骤三、根据锚索锚固段参数，计算纯水泥浆用量，利用注浆设备向锚索孔内灌注纯水泥浆，注浆施工完成。本发明的施工方法即可以避免浆液异常损耗，很好地解决了破碎地层超长锚索注浆量异常的问题，又可以确保锚索锚固力不受损失，满足锚索受力要求。
Construction method for reducing loss of super-long anchor cable grouting slurry in fractured stratum
一种降低破碎地层超长锚索注浆浆液损耗的施工方法
ZHANG FAN (author) / DENG ZHIQIANG (author) / LI XU (author) / TANG HONGBIN (author) / YANG ZHAO (author) / HUANG HAIBO (author) / CHEN PEISHUAI (author) / JI FUQUAN (author) / YAO PING (author) / TAI LIANHUAN (author)
2024-10-08
Patent
Electronic Resource
Chinese
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