A kind of reinforced long spiral rock-socketed construction equipment and its technology

A construction equipment and enhanced technology, applied in drilling equipment, drilling equipment and methods, rotary drilling and other directions, can solve problems such as stuck drilling and immobility, and achieve small impact, enhanced drilling ability, and agitation and spraying. Pile uniform effect

Active Publication Date: 2016-08-31
BEIJING ZHONGYAN DADI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the long auger drilling rig can't drill in the dense gravel soil layer with large particle size and weathered rock layer, and the drill is stuck. It provides a reinforced drill with strong drilling ability and wide application Long spiral rock-socketed construction equipment and technology

Method used

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  • A kind of reinforced long spiral rock-socketed construction equipment and its technology
  • A kind of reinforced long spiral rock-socketed construction equipment and its technology
  • A kind of reinforced long spiral rock-socketed construction equipment and its technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Fig. 2 is a schematic structural diagram of reinforced long spiral rock-socketed construction equipment, which consists of four parts: reinforced frame, power system, drilling system, and cooling system.

[0031] Among them, the power system is composed of power head (2), oil pressure output / inlet pipe (3), and power station (4). ), and connected with multifunctional flange (7) and reinforced drill pipe (8). When working, the power station inputs the oil pressure power into the power head through the oil pressure output / inlet pipe, and the drilling system is driven by the power bucket to drill into the hole, and the power is input to the motor on the pile frame to complete the lifting and lowering of the reinforced drill pipe . The torque provided by the power system is 150-210kN·m, and the drilling speed is 1.5-2.5m / min. The multifunctional flange can not only meet the requirements of normal concrete pouring, but also meet the requirements of cooling system grouting ...

Embodiment 2

[0035] Reinforced long spiral rock-socketed construction equipment consists of four parts: reinforced frame, power system, drilling system and cooling system.

[0036] Among them, the power system is composed of power head (2), oil pressure output / inlet pipe (3), and power station (4). ), and connected with multifunctional flange (7) and reinforced drill pipe (8). When working, the power station inputs the oil pressure power into the power head through the oil pressure output / inlet pipe, and the drilling system is driven by the power bucket to drill into the hole, and the power is input to the motor on the pile frame to complete the lifting and lowering of the reinforced drill pipe . The torque provided by the power system is above 230kN·m, and the drilling speed is 2.5-3.0m / min. The multifunctional flange can not only meet the requirements of normal concrete pouring, but also meet the requirements of cooling system grouting or water injection.

[0037] The drilling system ...

Embodiment 3

[0040] figure 1 It is a long spiral rock-socketed construction process flow chart. According to the process, it is explained as follows in conjunction with the following engineering example (a project in Hunan).

[0041] 1. Project overview

[0042] The high-rise building of Building 3# in a residential area, the structure type is a shear wall structure, with 44 floors above the ground and 1 floor underground. The foundation is planned to use pile foundation. The design elevation of the outdoor floor is 33.80m.

[0043] The design of this site adopts rock-socketed cast-in-place piles + post-grouting construction, the pile diameter is 800mm, the pile top elevation is 26.2m, the pile length is not less than 11m, and the pile end is required to enter the bearing layer⑦Strongly weathered slate is not less than 6.0m or stroke The argillaceous slate ⑧ is not less than 1.0m, and the characteristic value of the bearing capacity of a single pile is 4000KN.

[0044] 2. Engineering ge...

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PUM

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Abstract

The invention relates to reinforced long-screw rock-socketed construction equipment. The reinforced long-screw rock-socketed construction equipment consists of a reinforced rack, a special power system, a drilling system and a cooling system, wherein the reinforced rack comprises a control console and a pile frame, the special power system comprises a power head, an oil pressure delivery pipe and a power station, the drilling system comprises a reinforced drill rod, a special drill bit and a multifunctional flange plate, and the cooling system consists of a grouting pump, a grouting pipe, a welded connecting pipe and a spray nozzle. A construction process adopting the reinforced long-screw rock-socketed construction equipment comprises the steps of pile position setting-out, construction equipment adjustment, drilling machine movement in position, soil layer drilling, cutting of bedrock for hole formation to design depth, grouting for pile formation, etc. The reinforced long-screw rock-socketed construction equipment and the process thereof have the advantages that the drilling ability is strong, the application scope is wide, the problems that a long-screw drilling machine cannot realize drilling, is get stuck and the like in dense large-grain-size gravel soil layers and decayed rock layers are solved, and a foundation is laid for widely applying long-screw hole drilling for pile grouting.

Description

technical field [0001] The invention relates to a new type of pile foundation construction technology and its equipment, which are mainly used for cast-in-situ piles, foundation treatment and foundation pit support projects in weathered rock formations, and are suitable for various soil layers, especially for gravel with large particle diameters. Soil layer and strong and moderately weathered strata. Background technique [0002] Compared with impact drills, rotary drills, and disc drills, long auger drilled grouting piles have been widely used in various pile foundation projects, foundation treatment and foundation pit support due to their fast, environmentally friendly, high bearing capacity, and economical characteristics. The cast-in-situ piles of the project are under construction. However, due to the limitations of its technology and equipment, in large-sized gravel soil layers and weathered rock layers, there are problems such as drill immobility and drill sticking, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B3/00E21B3/02E21B17/22E21B10/56E21B36/00E02D5/36E02D5/46
CPCE02D5/36E02D5/56E02D2200/143E02D2250/0023E02D2250/0038E21B3/00E21B3/02E21B10/56E21B17/22E21B36/001
Inventor 吴剑波王立建武思宇李建平
Owner BEIJING ZHONGYAN DADI TECH CO LTD
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