A local drainage system designed with auxiliary grouting function

Abstract

The invention discloses a local dewatering and drainage system designed with an auxiliary grouting function. The local dewatering and drainage system comprises a water collecting pit, an auxiliary drainage and grouting device, a water pump and a filter assembly. The size of the water collecting pit is 800x800x1000 mm, and a C15 concrete cushion with a thickness of 50 mm is laid at the bottom of the water collecting pit. A brick moulding bed is built on the inner side wall of the water collecting pit, and the surface of the brick moulding bed is not plastered. Phi50 PVC water passing holes areformed in the brick moulding bed at equal distances in an embedded mode, and the spacing between the phi50 PVC water passing holes is 300 mm. The outer portion of the brick moulding bed is filled witha pebble water filter layer. The local dewatering and drainage system is simple in structure and safe and convenient to use, dewatering can be continuously performed on the middle portion of the foundation pit in a waterproof and raft construction stage, the groundwater level in the pit is maintained, and the waterproof and raft construction quality is ensured; and after the waterproof and raft construction is completed, grouting and sealing can be performed by the auxiliary drainage and grouting device to ensure that the mechanical properties and waterproof quality of a raft are not affected; and required raw materials are readily available, processing is convenient and efficient, the operation is simple, the cost is low, and fabrication on site is achieved.

Description

technical field [0001] The invention relates to the technical field of local drainage, in particular to a local drainage system designed with an auxiliary grouting function. Background technique [0002] At present, the drainage and drainage facilities in most projects are set outside the scope of the bottom plate. For those who need to set drainage and drainage measures inside the foundation pit, the drainage and drainage should be stopped before waterproofing construction, otherwise it will affect the development of subsequent construction, but In the case of rich groundwater in the site, if the drainage measures are not set in the middle of the foundation pit or the drainage is stopped before the waterproofing construction, it may lead to a large amount of groundwater gushing out, which will have a great impact on the quality of waterproofing construction and raft concrete pouring. In the end, groundwater may seep from the finished surface of the raft, and may even form a...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a local dewatering and drainage system designed with auxiliary grouting function, which can effectively solve the problem that the middle part of the foundation pit is not provided with dewatering and drainage measures or the dewatering and drainage is stopped before waterproofing construction, which may cause a large amount of groundwater to surge. If it happens, it will have a great impact on the quality of waterproof construction and concrete pouring of the raft slab. After forming, groundwater may seep from the finished surface of the raft slab, and may even form an undercurrent channel and gushe out in large quantities. Although the C15 concrete cushion and brick tire mold can effectively isolate the sediment from entering the sump, there will still be sediment entering the sump from the φ50PVC water hole, which will affect the normal use of the pump.

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