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SNS柔性防护网中锚杆操作步骤及方法

发布时间:2018-11-14   来源:admin
  SNS柔性防护网中锚杆操作步骤及方法 
1)钻孔 
搭好脚手架后,依据设计文件,定好锚杆位置,并用油漆做好标记。钻孔过程中,钻头尽量与岩层结构面垂直,不宜平行岩面;孔径及孔深要满足要求。 
dā hǎo jiǎo shǒu jià hòu ,yī jù shè jì wén jiàn ,dìng hǎo máo gǎn wèi zhì ,bìng yòng yóu qī zuò hǎo biāo jì 。zuàn kǒng guò chéng zhōng ,zuàn tóu jìn liàng yǔ yán céng jié gòu miàn chuí zhí ,bú yí píng háng yán miàn ;kǒng jìng jí kǒng shēn yào mǎn zú yào qiú 。
2)锚杆安装及注浆 
将水注入牛角泵内,水占泵体积的2/3,初压水和稀浆湿润管路,然后再将已调好的砂浆倒入泵内,将注浆管插至距孔底5~10cm处,堵塞孔口,将泵盖压紧密封、就绪后,慢慢打开风阀开始注浆,在气压推动下,水在前,砂浆在后,水湿润泵体和管路,引导砂浆进入锚孔。 
锚杆头在孔口就位后,将堵塞孔口水泥纸掀开,随即迅速将杆体插入并安装到位。若孔内无水泥砂浆溢出,说明砂浆不足,应将杆体拔出重新灌注后再安装锚杆;锚杆杆体插入孔内的长度不小于设计规定。锚杆安设时,不得随意敲击。 
The water is injected into the horn pump, which accounts for 2/3 of the pump volume. The initial pressure water and the slurry wetting pipeline are used. Then the adjusted mortar is poured into the pump. The grouting pipe is inserted 5-10 cm away from the bottom of the hole, and the hole is blocked. After the pump cover is sealed tightly and ready, the air valve is slowly opened to start grouting. Under the pressure, the water is in front and the mortar is in back. The water humid pump body and pipeline guide the mortar into the anchor hole.
After the bolt head is in place, the cement paper blocking the hole is lifted, and the bolt body is quickly inserted and installed in place. If there is no cement mortar overflow in the hole, it indicates that the mortar is insufficient, the bolt body should be pulled out and re-poured before installing the bolt; the length of the bolt body inserted into the hole is not less than the design requirements. When bolts are installed, they should not be knocked at random.

边坡防护网

(3)注意事项及异常现象处理 

1)压注砂浆时,必须密切注意压力表,发现压力过高,可能发生堵管,必须立即停风检查,排出堵塞。 
2)注浆管不准对人放置,注浆管在未打开风阀前,不准搬动,关闭密封盖,宜防止高压喷出物伤人。 
3)发生串浆现象,及浆液从其他孔流出时,采用多台泵注浆或堵塞串浆孔注浆。 
4)掺速凝剂砂浆一次拌制数量不应多于三个孔,以免时间过长使砂浆在泵中凝结。 
5)注浆完成后,及时清洗机具。 
1)yā zhù shā jiāng shí ,bì xū mì qiē zhù yì yā lì biǎo ,fā xiàn yā lì guò gāo ,kě néng fā shēng dǔ guǎn ,bì xū lì jí tíng fēng jiǎn chá ,pái chū dǔ sāi 。 
2)zhù jiāng guǎn bú zhǔn duì rén fàng zhì ,zhù jiāng guǎn zài wèi dǎ kāi fēng fá qián ,bú zhǔn bān dòng ,guān bì mì fēng gài ,yí fáng zhǐ gāo yā pēn chū wù shāng rén 。 
3)fā shēng chuàn jiāng xiàn xiàng ,jí jiāng yè cóng qí tā kǒng liú chū shí ,cǎi yòng duō tái bèng zhù jiāng huò dǔ sāi chuàn jiāng kǒng zhù jiāng 。 
4)chān sù níng jì shā jiāng yī cì bàn zhì shù liàng bú yīng duō yú sān gè kǒng ,yǐ miǎn shí jiān guò zhǎng shǐ shā jiāng zài bèng zhōng níng jié 。 
5)zhù jiāng wán chéng hòu ,jí shí qīng xǐ jī jù 。 
(4)成品保护 
1)锚杆安装前,采用高压风、水清除孔内杂物。 
2)砂浆锚杆注浆时,堵塞孔口,注浆管匀速拔出时,用水泥纸堵住孔口。 
3)锚杆安装之后,不得随意敲击,不得悬挂重物。 
4)砂浆锚杆施工时应设置垫板及螺栓;锚杆可利用垫板与钢筋网固定。 
1) before installing the anchor bolts, high pressure wind and water should be used to remove the impurities in the hole.
2) when the mortar anchor is injected, the hole is blocked, and when the grouting pipe pulls out at a constant speed, the hole is blocked by cement paper.
3) after installing the anchor bolts, it is not allowed to knock at random, not to hang heavy objects.
4) mortar bolting should be provided with pads and bolts; anchors can be fixed with reinforcing steel plates.
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