邁式（自進(jìn)式）錨桿施工簡(jiǎn)介.rar

邁式（自進(jìn)式）錨桿施工簡(jiǎn)介

邁式注漿鉆進(jìn)錨桿是一種將鉆進(jìn)，注漿，錨固功能合而為一的錨桿，能夠保證在復(fù)雜地層（軟巖，土層，斷裂帶等）條件下的錨固效果，具有可靠，高效，簡(jiǎn)便的特點(diǎn)。
(1)鉆桿及錨桿合而為一，在風(fēng)化巖，碎巖層，回填區(qū)，砂，粘土，園卵石層等不需套管護(hù)壁，即能形成錨孔，保證錨固與注漿效果。操作簡(jiǎn)便，快捷省時(shí)，節(jié)省25%工作量，減少工程成本。
(2)高效能的注漿，充填裂隙，固結(jié)巖體和土層，控制地下水，具有良好的注漿擴(kuò)散半徑及可靠的錨固質(zhì)量。
(3)連續(xù)的螺紋使邁式注漿鉆進(jìn)錨桿可任意切割，連接，適合在狹窄的工作場(chǎng)地施工。同時(shí)，連續(xù)的螺紋使邁式注漿鉆進(jìn)錨桿比光滑的鋼管具有更強(qiáng)的粘結(jié)阻力。據(jù)試驗(yàn)結(jié)果所得，粘結(jié)阻力高出光滑鋼管2—3倍。本文僅就用潛孔鉆機(jī)施工邁工錨桿作簡(jiǎn)介，當(dāng)采用手持氣腿式風(fēng)鉆的施工方法與使用潛孔鉆大體相同，兩者區(qū)別在于手持氣腿式風(fēng)鉆適用于4m以內(nèi)的邁式錨桿。
1. 施工方法
1.1 施工準(zhǔn)備: 用人工或機(jī)械將要施工的場(chǎng)地平整好，以便潛孔鉆能行駛、進(jìn)出及操作。一般要修一條潛孔鉆機(jī)行駛便道，便道要求寬3m左右，坡度控制在30%，而施工場(chǎng)地需4m×5m。根據(jù)需要搭設(shè)工作平臺(tái)或搭設(shè)腳手架，以便操作。將各種風(fēng)管和水管接好，保持各種管路暢通，空壓機(jī)司機(jī)和注漿手及潛孔鉆司機(jī)到位，空壓機(jī)、潛孔鉆機(jī)、注漿泵、灰漿攪拌機(jī)試機(jī)無故障，備好各種料具。
1.2 鉆孔: 空壓機(jī)啟動(dòng)后，開啟潛孔鉆機(jī)，根據(jù)地形及地質(zhì)情況，調(diào)整好潛孔鉆機(jī)的鉆進(jìn)角度。在潛孔鉆在套上專用的纖尾套，將錨桿與纖尾套連接牢固，并在第一節(jié)錨桿的前端套上鉆頭。并根據(jù)地質(zhì)情況確定錨桿的長(zhǎng)度，以
Mai (self-propelled) Anchor Construction Introduction

Step drilling grouting bolt is a way to drilling, grouting, anchoring function into one of the bolt, to ensure complex formation (soft rock, soil, faults, etc.) under the conditions of anchoring effects reliable, efficient, convenient features.
(1) drill and bolt into one, in the weathered rock, crushed rock, backfill areas, sand, clay, gravel layer without casing Garden Wall, which can form anchor holes, to ensure anchoring and grouting. Simple, fast and save time, save 25% of the workload and reduce the cost of the project.
(2) high performance grouting, filling cracks, rock and soil consolidation and control of groundwater, grouting with a good spread radius and reliable bonding.
(3) continuous thread to step drilling grouting bolt can be cut, connect, work in a narrow space for construction. Meanwhile, the continuous thread to step drilling grouting bolt than the smooth tube has a stronger bond resistance. According to test results obtained, bond resistance 2-3 times higher than the smooth tube. This article will step forward with the construction hole drill bolt work for us, when using hand-held air-leg construction method of pneumatic drill hole drill with the use of essentially the same, difference is between the two hand-held pneumatic drills suitable for air-leg within the step-type anchor 4m bar.
1. Construction method
1.1 Construction preparation: artificial or mechanical construction of the site preparation will be good to hole drilling can travel, access and operation. General to repair a hole drill moving sidewalk, pavement asked about 3m wide, slope control 30% of the construction site be 4m × 5m. Needed work platform or scaffold erection erection in order to operate. To a variety of wind and water pipes connected, maintaining a variety of pipe flow, air compressor drivers and grouting hole drilling hand and place the driver, air compressor, drilling machine, injection pump, mortar mixer machines free trial failure, prepare a variety of materials.
1.2 Drilling: air compressor, the open hole drill, according to the terrain and geological conditions, adjust the angle hole drilling rigs. In the drill hole put on a dedicated fiber end cap and bolt sleeve is firmly connected with the fiber end, and bolt in the front section I put on the bit. Anchor according to geological conditions to determine the length, in order to
 

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