Sleeve valve pipe karst grouting construction method

• Main Authors: WANG CANWEI, LIU ZHUANGDONG, RUAN HENG
• Format: Patent
• Language: Chinese; English
• Published: 09.06.2020
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The invention relates to a sleeve valve pipe karst grouting construction method and relates to the technical field of karst grouting construction. The problems that hole types need to be identified inthe whole process of drilling, steps are complex, and the overall construction workload is increased are solved. The sleeve valve pipe karst cave grouting construction method includes the following steps that A, large karst cave grouting is conducted; and B, other area grouting is conducted. The step A includes the steps that a, a through large karst cave is determined; b, grouting hole arrangement is conducted, and drilling work is conducted; c, mud is prepared on the spot; d, a sleeve valve pipe is put down; and e, grouting is conducted. The step B includes the steps that f, a dot-shaped development area, a belt-shaped development area and a face-shaped development area are determined; g, grouting hole arrangement is conducted, and drilling work is conducted; h, the sleeve valve pipe isput down; and i, grouting