交河故城PS-C灌浆加固材料可灌性的实验室研究

Groutability of PS-C Grout for Jiaohe ruins

为了研究交河故城保护灌浆加固材料,在不同水灰比PS-C浆液实际灌浆过程中,对不同裂隙的渗透能力及灌注效果做了初步探讨。在实验室模拟灌浆墙体的基础上,依据实际施工条件分别配置了不同水灰比的PS-C浆液,并对其灌浆过程中的灌浆压力及灌注效果进行检测,通过对检测数据的比较分析,得出了现场施工中不同裂隙宽度对浆液水灰比的选择依据。对大于1 cm宽度的裂隙应使用0.6水灰比的浆液;对介于0.75～1.0 cm的裂隙应使用0.65水灰比的浆液;当裂隙宽度在0.5～0.75 cm时应使用0.7水灰比的浆液,而当裂隙小于0.5 cm时应使用0.75水灰比的浆液。

In order to study the influence of PS-C grout with different C/W ratios on its groutability to different fractures of Jiaohe ruins,the grouting pressure and effects are discussed.Based on the data of experiments,a conclusion is drawn that when the fracture width is larger than 1 cm,the grout with 0.6 C/W ratio should be used.When it is 0.75 cm to～1 cm,the grout with 0.65 C/W ratio should be used.The grout with C/W ratio of 0.7 should be used when the fracture width is between 0.5 cm and 0.75 cm.When it is smaller than 0.5 cm,the grout with C/W ratio of 0.75 should be used.