As the increase of domestic high - rise buildings, more and more deep foundation trench supporting constructions have come into existence. among the general geographical condition of the urban district in qingdao, most of regions, which mainly consist of strong de composed rocks, are in quite good condition. except for the sandy soil and oozy soil along sea sides. but the development of rock cracks and breaking zones and unstable lamprophyre still exist, so blasting is needed during constructions of foundation trench. blasting have bad influence on the stability of slopes. moreover. the slope - liding has happened for several times, so the engineering project of foundation trench attracts more attention of people
隨著國內高層建築的發展，深基
坑支護工程越來越多，綜合青島市區的地質狀況，除海邊有
砂性土及淤泥軟土外，大部分地域巖土條件相對較好，多以強風化巖為主，但巖石裂隙發育，間或有斷裂帶和穩定性極差的煌斑巖穿插其中，基
坑施工時需要爆破施工，對邊坡的穩定造成了不利影響，加之連續出現的幾次滑坡失穩事件，基
坑支護工程越來越引起了各方面的重視。
The wood is full of pits and needs sanding.
這木料上到處是凹
坑，需用
砂紙打磨一下。
By direct shear for and normal triaxial shear tests of non - saturated desert sand, the parper studied the effect of water content and dry density on the strength of the non - saturated desert sand, and set up the code of this sand. based on the plane strain test of non - saturated desert sand slope, the paper analysed the destruction way of the excavaion side during the construction by means of adding water, and brough forward a formule that calculates the allowable of excavation and pile hole
通過非飽和沙漠
砂直剪試驗和常規三軸剪切試驗，研究了含水量和干密度對非飽和
砂強度的影響，建立了這種
砂的強度準則。通過非飽和沙漠
砂邊坡室內平面應變試驗，分析了沙漠井場浸法施工中就基
坑壁的破壞方式，推導出了基
坑和樁孔容許開挖深度的計算公式。
Quicksand control method in deep foundation pit support project of yunda international square
運達國際廣場深基
坑支護工程流
砂層治理方法
Deep foundation trenches in shallow rocks in some cities along a seashore like qingdao, dalian, zhuhai things like that often need to be dug or exploded into hard rock, there are heaving sand, soft soil, groundwater upon it
青島、大連、珠海等基巖埋深淺的沿海地區深基
坑經常需要挖至基巖甚至需要爆破開挖，基巖以上又有流
砂、軟土、地下水等。
The earth pressure over the pit bottom calculated by the trapezoid mode, and the result is better according with the rectangle mode of sandy foundation
坑底以上樁側土壓力採用梯形分佈模式，計算結果與
砂土地基的矩形分佈實測土壓力符合較好。
A filling construction technique for sandstone pit in the fifth ring road of the western suburbs
五環路西郊
砂石
坑填築施工技術
Engineering design of supporting structure of deep foundation pit in high level water and sand soil area
高水位
砂土地區深基
坑支護結構工程設計
Some researchers at home and aboard apply model test to deep foundation pit simulation study, most of them are sheeting pile timbering deep foundation pit simulation which is stuffed with sand
國內外學者也曾用模型試驗進行過深基
坑模擬試驗研究，但多集中在以
砂土作為填料的板樁支護模擬。
Practices show that the compressive strength, the modulus of elasticity, the permeability coefficient and the compactness of concrete obtained respectively by the compaction method, the unconfined compression static compaction method, the sand trenching and filling method, and nuclear densimeters meet the requirement of design, and the mixing proportion of concrete of the side - wall is reasonable
實踐證明施工中用擊實法、無側限抗壓靜力壓實法、挖
坑灌
砂法及核子密度儀分別檢測出的邊墻混凝土抗壓強度、彈性模量、滲透系數和密實度值均滿足設計要求，邊墻混凝土配合比合理。
As a foundation pit excavating support technology which is easy and celerity to implement, safe and less cost, soil nailing is getting more and more application to deep excavation construction. however, soil nailing cannot be used in very soft soil or for cases which deformation of the soil nailing has to be strictly limited. to cope with these more difficult situations, compound soil nailing, i. e. a combination of soil nailing with soil - cement mixing piles or mini pile, is recently developed
土釘支護作為一種經濟可靠、快速簡便的擋土技術，已在深基
坑開挖施工中得到越來越多的應用，但單純的土釘支護技術不能用於淤泥質土，
砂土等不良土層及對變形控制嚴格的情況，所以近年來又發展了土釘與攪拌樁、微型樁等支護相結合的復合型土釘墻支護形式。
Some respects of self - compacting high - strength concrete ( schsc ) made of fujian province ' s local material have been studied in this thesis as follows : 1. studies on microstructure of the schsc. three different mixed schsc and one normal high - strength concrete ( nhsc ) were observed by the scanning electron microscope at different sites and different ages of 1 day, 3 days, 7 days, 28 days and 60 days. from the test, the effects due to no vibrating and admixture on the microstructure of schsc were studied
通過四組強度等級相當，分別為普通混凝土、兩組不摻膨脹劑的自密實混凝土（其粉煤灰的摻量不同）和摻有膨脹劑的自密實混凝土，在同一養護齡期的條件下（ 1天、 3天、 7天、 28天和60天） ，分別選擇粗骨料過渡區、細骨料過渡區、水泥石和
砂坑作為觀測點，採用sem進行細觀掃描對比實驗，以研究自密實混凝土因免振搗的特性及摻合料對其骨料界面和水泥石結構的影響。
Application of dewatering system with self drainage deep well and light well points to deep foundation pit under sandy soil condition
自流深井配輕型井點降水在
砂質土深基
坑中的應用
The author conduct a series of research work including the supporting system design, construction, monitoring and mixture ratio tests of mortar for anchoring in this research. some research results of applicable value in engineering are presented also
在本文的研究中，作者根據工程的自身特點對廈門市美仁宮大廈基
坑圍護工程的設計、施工、監測及錨固
砂漿進行了一系列的研究工作，並得出了一些具有工程適用價值的成果。
The result shows that the development of the mining pit is affected by the interaction between the flow in the vicinity of the mining pit and its boundary
試驗成果表明，采
砂坑內及其附近的水流與采
砂坑邊果相互作用的結果。
The surfacial sediment on the yellow river delta is so sensitive to ocean hydrodynamic condition, especially waves that soil failed and came into being a lot of unstable features : bumps and hollows, flute and groove cast of silt and collapse
黃河三角洲潮灘淺表層沉積物由於對海洋動力尤其是波浪作用的敏感，會發生破壞，形成塌陷、凹
坑、粉
砂流沖溝等一系列災害地質現象。
In this technique, the original sand, soil and humus are replaced by clean sand ; then water is poured into the base pit enabling sand rearranged and compacted by means of the water down - seepage force
水墜
砂工藝就是採用潔凈的
砂土替換原有
砂土及腐質土，然後往基
坑內灌水，使
砂土藉助水下滲的作用力重新排列組合，以達到密實的效果。
Overall, the average deposit slope, changes in cross sections, scouring hole, and sediment discharge of downstream channel of dam no. 4 increased with deeper opening depth of dam no. 3
由實驗結果得知，隨三號壩壩體在斷面拆除深度加深時，四號壩下游的淤
砂坡度、斷面變化、沖刷
坑與輸
砂量變化會隨之增大。
Application of the cement mixed pile for the water cut - off in the foundation pit sand layer excavation
水泥攪拌樁在基坑砂層開挖中止水的應用效果
