Method for constructing underground continuous wall in base rock

Abstract

The invention provides a method for constructing an underground continuous wall in base rock, and belongs to the technical field of building construction. According to the method, construction equipment replacement is carried out, guide wall ditch digging, guide wall manufacturing, rotary digging drill and percussion drill combination groove forming, steel bar cage and reaction box installation and the like are sequentially carried out, then, a guide pipe is installed, concrete is cast, the operation is repeated, and the continuous wall is obtained and is used for realizing the effects of soil blocking, water stopping and the like during the building foundation pit construction. Through adopting the construction method, much grooving construction equipment is used, and the process is relatively complicated, but the problem of groove machine construction incapability in normal construction of back rock can be solved, the surface smoothness and the water stopping effect of the underground construction wall in normal construction can also be obtained as long as the arrangement is reasonable and the management is proper, in addition, the required cost is mush lower than the cost adopting special slot milling machine equipment, and a fire-new construction method provided for underground continuous wall construction in the base rock. The method for constructing the underground continuous wall in base rock has the advantages that the cost is low, the quality and the appearance are completely identical to those of the continuous wall constructed by adopting a hydraulic grooving machine, and the popularization and the application are easy.

Description

technical field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a method suitable for constructing an underground continuous wall in bedrock of a hard stratum. Background technique

[0002] At present, hydraulic grabs are used for hole-forming construction in the construction of underground diaphragm walls. When the hydraulic grabs are lowered during construction, the grabs are inserted into the soil by their own gravity, and then closed to grab the soil. When the bottom is rocky, the grab cannot insert the bucket teeth into it by its own weight, and it cannot complete the action of closing and grabbing the soil. Therefore, in the hard formation, the hydraulic grab cannot complete the hole-forming construction. Contents of the invention

[0003] In view of the above-mentioned problems in the prior art, the object of the present invention is to provide a method for constructing an underground continuous wall in ...

Examples

Embodiment Construction

[0027] The present invention is further described below, but protection scope of the present invention is not limited thereto:

[0028] A method for constructing an underground diaphragm wall in the bedrock of the present invention is to excavate a guide wall trench of a certain length along the periphery of the underground structure or high-rise building foundation pit designed on the drawing on the ground, and then arrange a single-layer steel mesh Concrete is poured in pieces to form a guide wall, and then a groove section of a certain width is excavated in the guide wall with a combined grooving machine in the state of mud retaining wall, and then the steel cage is hoisted into the groove section, and the reaction box is placed on both sides of the steel cage. On the side, concrete is poured in the groove section filled with mud by the conduit method, and the concrete is gradually poured upward from the bottom of the groove section ditch, and at the same time, the mud is re...

technical field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a method suitable for constructing an underground continuous wall in bedrock of a hard stratum. Background technique

[0002] At present, hydraulic grabs are used for hole-forming construction in the construction of underground diaphragm walls. When the hydraulic grabs are lowered during construction, the grabs are inserted into the soil by their own gravity, and then closed to grab the soil. When the bottom is rocky, the grab cannot insert the bucket teeth into it by its own weight, and it cannot complete the action of closing and grabbing the soil. Therefore, in the hard formation, the hydraulic grab cannot complete the hole-forming construction. Contents of the invention

[0003] In view of the above-mentioned problems in the prior art, the object of the present invention is to provide a method for constructing an underground continuous wall in ...

Examples

Embodiment Construction

[0027] The present invention is further described below, but protection scope of the present invention is not limited thereto:

[0028] A method for constructing an underground diaphragm wall in the bedrock of the present invention is to excavate a guide wall trench of a certain length along the periphery of the underground structure or high-rise building foundation pit designed on the drawing on the ground, and then arrange a single-layer steel mesh Concrete is poured in pieces to form a guide wall, and then a groove section of a certain width is excavated in the guide wall with a combined grooving machine in the state of mud retaining wall, and then the steel cage is hoisted into the groove section, and the reaction box is placed on both sides of the steel cage. On the side, concrete is poured in the groove section filled with mud by the conduit method, and the concrete is gradually poured upward from the bottom of the groove section ditch, and at the same time, the mud is re...