（1）井壁通常采用Mu7.5砖，M5混合砂浆砌筑，灰缝灰浆应饱满；
(1) MU7.5 brick and M5 composite mortar are generally used for the shaft wall, and the mortar for the mortar joint shall be full;
（2）井壁内外均需用1:2水泥砂浆抹面厚2cm，粉刷前应将墙面洒水湿润，残留的砖缝应清除。抹面高度应高于地下水最高水位0.25m；
(2) both inside and outside of the shaft wall shall be plastered with 1:2 cement mortar with a thickness of 2cm. Before plastering, the wall shall be watered and wetted, and the remaining brick joints shall be removed. The plastering height shall be 0.25m higher than the maximum groundwater level;
（3）抹面应两道工序，先刮糙打底后抹光，抹面宜先外壁后内壁，厚度一般为15mm，刮糙厚度一般控制在10mm内，用直尺刮平；刮糙的水泥砂浆终凝后，应及时粉刷第二道水泥砂浆，并压实抹光；
(3) the plastering shall be carried out in two processes: first, roughening, priming and then troweling. The plastering shall be carried out on the outer wall and then on the inner wall. The thickness is generally 15mm, and the roughening thickness is generally controlled within 10 mm, which shall be leveled with a straight ruler. After the final setting of the roughened cement mortar, the second cement mortar shall be plastered in time and compacted for troweling;
（4）抹面终凝后，应做好养护，防止产生收缩裂缝。内外墙的粉刷接缝位置不得在同一截面上，应予错开。墙体与沟管的连接处，应用1:2水泥砂浆抹成45°的三角接缝。墙体砌筑缝应做到饱满，墙体与基础的接触处坐浆应符合要求。
(4) after the final setting of plastering, the curing shall be done to prevent shrinkage cracks. The plastering joints of internal and external walls shall not be on the same section and shall be staggered. The joint between the wall and the trench pipe shall be plastered with 1:2 cement mortar to form a 45 ° triangular joint. The masonry joint of the wall shall be full, and the mortar setting at the contact between the wall and the foundation shall meet the requirements.