1) gravel layer
卵砾石层
1.
Field test study of methods for supporting large-section inclined shaft in gravel layer
卵砾石层大断面斜井井筒支护方法现场试验研究
2.
From consolidating similar past case studies with regards to the problems encountered during construction phase, this article is able to provide an important point of view on shield tunnel design in gravel layer.
依搜集既有卵砾石层潜盾隧道案例显示,其施工可能遭遇如大卵石障碍物、卵石引致切刃磨耗、钻掘引致沉陷、潜盾机具选择等问题,这些问题之因应设计考虑与土层隧道者不同,亦为卵砾石层潜盾隧道重要课题之一。
2) gravel deposits
卵砾石层
1.
Optimization design of support scheme for a shallow tunnel in gravel deposits;
卵砾石层浅埋公路隧道支护方案的优化研究
3) pebble bed
卵砾石层
1.
The feasibility of using pebble bed as bearing stratum of PHC pipe pile;
卵砾石层用作PHC管桩持力层的施工及适宜性
2.
Based on the analysis of ground condition of hydrogeology and engineering geology,the design parameters of the underground reservoir inter-seepage dam in pebble bed are studied.
以烟台滨海平原地带地下水库工程为例,在分析场地水文地质工程地质条件的基础上,详细研究了地下水库截渗坝的设计参数,提出了卵砾石层中地下水库截渗坝新的结构形式,并分析了其结构特点,探讨了卵砾石层截渗坝施工参数和质量控制问题。
4) pebble/gravel strata
卵砾石层
1.
Being a typical long span,shallow cover tunnel of flattened profile,the West Tunnel of Maoshan along Nanjing and Changzhou Highway is situated on the incline of re- sidual deposit of pebble/gravel strata.
宁常高速公路茅山西隧道位于残坡积卵砾石层斜坡之中,是一典型的大跨浅埋扁平隧道。
5) gravel strata
卵砾石地层
1.
By the analysis of present drilling ways,and according to the characteristics of gravel strata,application feasibility is put forward for DTH hammer concentric simultaneous casing drilling tool in gravel strata,and analysis are made on the structure principle and characteristic of drilling tool.
卵砾石地层是钻探工程中常见的一种典型的不稳定地层。
2.
Through applying downhole hammer concentric simultaneous casing drilling method,the difficulties that drill in gravel strata are solved out fundamentally,the authors consider downhole hammer concentric simultaneous casing drilling is an effective way for gravel beds in combination with a case of rock-soil engineering survey in Duyun Cit
卵砾石地层是钻探工程中常见的一种典型的难钻进不稳定地层。
6) gravel stratum
卵砾石地层
1.
Abatract The paper firstly introduces the designing principle of a new-type alloy-diamond bit for the gravel stratum, secondlyexplains briefly the mechanism of matrix composition for the new-type bit.
本文首先介绍一种用于卵砾石地层钻进的新型针状硬质合金钻头的设计原理,而后简要说明其胎体配方组成机理。
2.
Drilling in gravel stratum is one of present difficulties in drilling area with low drilling speed,short service life of bit and high drilling cost.
卵砾石地层钻进是钻探的难题之一,不仅钻进速度低,钻头的使用寿命短,而且钻探成本高。
补充资料：砾石填充液
分子式：
CAS号：
性质：砾石填充作业中，用来携带砾石或砂粒并将其运送到井下预定位置的液体。这种液体要求具有一定的黏度，不含有可能伤害地层及砾石层渗透率的物质，能较快降解，使砾石柱在井下能保持最佳的填充密度和过滤能力。
CAS号：
性质：砾石填充作业中，用来携带砾石或砂粒并将其运送到井下预定位置的液体。这种液体要求具有一定的黏度，不含有可能伤害地层及砾石层渗透率的物质，能较快降解，使砾石柱在井下能保持最佳的填充密度和过滤能力。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条